JPH10182008A - Empty bobbin feeder to spinning automatic machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store multiple empty bobbins without any increase in a size of an empty bobbin housing device, to surely feed an empty bobbin before it is required by an automatic machine, and to simplify control. SOLUTION: When an empty bobbin demanding signal is outputted from a doffing device, a bobbin transferring mechanism 65 and a transferring arm 63 are parallelly driven. The bobbin transferring mechanism 65 transfers a holding empty bobbin B onto an empty bobbin conveying conveyor on the doffing device existing side. While the empty bobbin B is moved by means of the bobbin transferring mechanism 65, the direction of the empty bobbin B is changed to the direction parallel to the empty bobbin conveying conveyors 10, 11 so as to be transferred to the empty bobbin conveying conveyors 10, 11. The transferred empty bobbin B is conveyed to the position matching with the doffing device by means of the empty bobbin conveying conveyors 10, 11. On the other hand, the transferring arm 63 also starts to be driven, so that the empty bobbin B held in a clamping part 79 is transferred to a belt conveyor 64 so as to be conveyed to the transfer position of the bobbin transferring mechanism 65.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open-end spinning machine in which a number of winding units are arranged in a row, a binding spinning machine,
It moves along the rail extended along the spinning machine such as a winder, stops at the position corresponding to the winding unit, performs the doffing and mounting work of the empty bobbin, and extends along the winding unit row. The present invention relates to an empty bobbin replenishing apparatus for an automatic spinning machine in which empty bobbins are replenished via an empty bobbin transport conveyor.

[0002]

2. Description of the Related Art In open-end spinning machines, binding spinning machines, and spinning machines such as winders equipped with a winding unit for winding a yarn while traversing the yarn, various operations are automated to save labor. I have. In addition, the unloading of full bobbins (packages) and the supply of empty bobbins when full are automated. Generally, in this type of spinning machine, an empty bobbin or a seed bobbin (hereinafter, simply referred to as a bobbin) is supplied to a winding unit by an automatic machine (doffing machine) that doffs a full bobbin from the winding unit.

[0003] As a method of supplying a bobbin to a winding unit by a doffer, a doffer moving along a rail installed along a spinning machine base stocks a plurality of bobbins and doffs a full bobbin. There is a method of supplying a bobbin that has been stocked later to the winding unit (for example, Japanese Patent Publication No. 60-47371, Japanese Patent Application Laid-Open No. 59-69364).
No.). However, in this method, when the bobbin stocked in the doffer runs out, it is necessary to move to the bobbin replenishing point and replenish the bobbin, and during that time, doffing and bobbin supply cannot be performed. There's a problem. In addition, if a large number of bobbins are stocked, the number of replenishment at the bobbin replenishing point is reduced, but there is a problem that the doffing machine becomes large.

As a method for solving the above problem, a bobbin storage section is provided at a position corresponding to each winding unit of a spinning machine,
There is a method of newly replenishing the bobbin when the bobbin in the bobbin storage section is used in the winding unit (for example, JP-A-61-183065 and JP-A-8-170231).

In Japanese Patent Application Laid-Open No. Hei 3-213529, a conveyor for transporting empty bobbins discharged from empty bobbin stockers is provided along a spinning unit provided in parallel, and an automatic doffer (doffing device) is provided. There is disclosed an empty bobbin supply device that takes in an empty bobbin from a conveyor to a bobbin magazine of a work vehicle while a work vehicle (automatic machine) stops at a spinning unit having a doff request signal and performs bobbin replacement. The empty bobbin stocker accommodates empty bobbins in a state parallel to the longitudinal direction of the conveyor, and discharges the empty bobbins onto the conveyor while maintaining the stored orientation.

Japanese Unexamined Patent Publication No. Hei 8-188338 discloses that a large number of empty bobbin axes exist in a plane perpendicular to the longitudinal direction of an empty bobbin transport conveyor extending in parallel with the yarn processing unit row. An apparatus provided with an empty bobbin accommodating device for accommodating empty bobbins in a plurality of rows is disclosed. In this device, an intermediate transfer conveyor extending in a direction orthogonal to the empty bobbin transfer conveyor is provided above the empty bobbin storage device, and the empty bobbin supplied from the empty bobbin storage device is fed to a bobbin delivery arm having a clamp portion. And changes the direction in parallel with the longitudinal direction of the empty bobbin conveyor and transfers it to the intermediate conveyor. Except for the transfer position from the bobbin transfer arm on the intermediate transfer conveyor, the apparatus stands by while a large number of empty bobbins are placed at a predetermined pitch, and based on the empty bobbin request signal from the doffer, first, the bobbin supply device Supplies the empty bobbin to the bobbin delivery arm. Then, after the empty bobbin is gripped by the clamp unit, the bobbin delivery arm is rotated, and the empty bobbin gripped by the clamp unit is transported to the transfer position of the intermediate transport conveyor. The bobbin transfer arm changes the direction of the empty bobbin by 90 ° during the rotation thereof by the action of the differential gear device and transfers it to the intermediate conveyor.
When it is confirmed that the empty bobbin has been placed at the delivery position,
The intermediate conveyor is driven at a predetermined pitch, an empty bobbin is supplied from the intermediate conveyor onto the empty bobbin conveyor, and supplied to the doffing machine by the empty bobbin conveyor.

[0007]

Problems to be Solved by the Invention
In the apparatus disclosed in Japanese Patent Application Publication No. 65-165 and Japanese Patent Application Laid-Open No. 8-170231, it is not necessary to mount a large number of empty bobbins on the automatic machine, but it is necessary to prepare empty bobbins at positions corresponding to the respective winding units. There is a problem that the required number of empty bobbins increases. Also, Japanese Patent Application Laid-Open No. 61-183065
In the apparatus disclosed in Japanese Patent Application Laid-Open Publication No. H11-157, a magazine must be provided for each winding unit, and the size of the apparatus is increased. Moreover,
An empty bobbin that is prepared in each magazine and an empty bobbin that moves with the carrier on the guide track are required,
There is a problem that the required number of empty bobbins further increases. Further, when a cone bobbin is used, there is another problem that the supply of the bobbin is not performed smoothly.

On the other hand, in the apparatus disclosed in Japanese Patent Application Laid-Open No. Hei 3-213529, there is no need to move to the empty bobbin replenishing point and replenish the empty bobbins, and the number of empty bobbins required for the entire spinning machine is small. I'm done. However, in this apparatus, the empty bobbins are stored in the empty bobbin stocker in a state in which the empty bobbins are stored in a direction parallel to the longitudinal direction of the conveyor, and the empty bobbins are discharged on the conveyor in the direction in which they are stored. When accommodating, the structure becomes complicated and the accommodating operation becomes very troublesome. Further, in order to accommodate a large number of empty bobbins without accommodating the empty bobbins in a plurality of rows, there is a problem that the empty bobbin accommodation device becomes large.

In the apparatus disclosed in Japanese Patent Application Laid-Open No. 8-188338, this problem is solved. However, after the empty bobbin request signal is output, the empty bobbin is sent out from the empty bobbin supply device, and the bobbin delivery arm is moved. Since the rotation and the driving of the intermediate transfer conveyor are sequentially performed and the empty bobbin is supplied onto the empty bobbin transfer conveyor, it takes time to transfer the empty bobbin to a position corresponding to the doffing machine. In addition, a sensor for confirming delivery is required at each delivery stage, and control is complicated. Further, a differential gear device that changes the direction of the empty bobbin by 90 ° during the rotation of the bobbin transfer arm is required,
There is also a problem that the structure becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to accommodate a large number of empty bobbins without increasing the size of the empty bobbin accommodation device, and to reduce the number of empty bobbins until an automatic machine is required. An object of the present invention is to provide an empty bobbin replenishing device for an automatic spinning machine that can reliably supply a bobbin and that is easily controlled.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, the moving unit moves along a rail extending along the spinning machine and stops at a position corresponding to the winding unit. An empty bobbin replenishing device for an automatic machine in which empty bobbins are replenished via an empty bobbin transport conveyor extending along a winding unit row while performing doffing and mounting work of empty bobbins, First and second empty bobbin transport conveyors respectively extended along the winding unit row on both sides of the spinning machine stand, and arranged at the end of the spinning machine stand, and a number of empty bobbins whose axis is An empty bobbin accommodating device, which accommodates empty bobbins in a plane orthogonal to the longitudinal direction of both empty bobbin transport conveyors and includes transport means for intermittently transporting the empty bobbins being accommodated, and both empty bobbin transport conveyors Position corresponding to the end of To be arranged to receive a direction conversion means passes in the state extending along the longitudinal direction of the empty bobbin conveyor the direction of the empty bobbin to a predetermined empty bobbin transport on the conveyor, the empty bobbin from the empty bobbin housing device,
Delivery means for delivering to the direction conversion means, and emptying to the corresponding empty bobbin transport conveyor based on an empty bobbin request signal from the automatic machine in a state where the empty bobbin is held in the direction conversion means and the delivery means. And control means for controlling the direction changing means and the delivery means in parallel so as to perform a bobbin supply operation.

In the invention described in claim 2, the direction changing means has an arm provided with a holding portion for holding an empty bobbin on the delivery means, and a holding position at which the holding portion holds the empty bobbin on the delivery means. And a driving device for turning to a first delivery position corresponding to the first empty bobbin transport conveyor and a second delivery position corresponding to the second empty bobbin transport conveyor.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the delivery means has a holding portion for receiving and holding the empty bobbin supplied from the empty bobbin storage device. An arm and a belt conveyor for transporting the empty bobbin released from the transfer arm to a gripping position by the direction changing means, and the belt conveyor is continuously operated during operation of the spinning machine stand.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the double bobbin transporting conveyor is continuously operated during the operation of the spinning machine stand. According to the first to fourth aspects of the present invention, the operation of the spinning machine stand is started in a state where the empty bobbin accommodating device is filled with the empty bobbin, and the empty bobbin is held in the direction changing means and the delivery means. The automatic machine moves along a rail extending along the spinning machine, stops at a position corresponding to the winding unit, and performs doffing and mounting work of an empty bobbin. When the empty bobbin request signal is output from the automatic machine, the direction changing means and the delivery means are driven in parallel. The first and second empty bobbin conveyors respectively extended on both sides of the spinning machine stand are continuously driven during the operation of the spinning machine or driven based on an empty bobbin request signal. The direction changing means moves the held empty bobbin to a position corresponding to the empty bobbin transport conveyor on the side where the automatic machine that has output the empty bobbin request signal exists and delivers the empty bobbin onto the empty bobbin transport conveyor. While the empty bobbin is moved by the direction changing means, the direction thereof is changed to a state parallel to the empty bobbin conveyor, and the empty bobbin is transferred onto the empty bobbin conveyor. The delivered empty bobbin is transported to a position corresponding to the automatic machine by the empty bobbin transport conveyor.

On the other hand, the delivery means also starts to be driven at the same time,
The empty bobbin held on the delivery means is transported to a delivery position to the direction changing means. Further, one empty bobbin in the empty bobbin accommodating device is supplied to the delivery means.

According to the second aspect of the present invention, the direction changing means grips the empty bobbin with the grip portion and conveys the empty bobbin to the first or second delivery position corresponding to each empty bobbin conveyor.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the delivery means conveys the empty bobbin to a position corresponding to the direction changing means by a belt conveyor. The empty bobbin supplied from the empty bobbin accommodating device is transferred to and held by the holding portion of the transfer arm, and is released on the belt conveyor by the movement of the transfer arm. The belt conveyor is operated continuously during the operation of the spinning machine stand.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the two empty bobbin conveyors are independent of the output of the empty bobbin request signal from the automatic machine. During the operation of the spinning frame, the machine is operated continuously.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) A first embodiment in which the present invention is embodied in an open-end spinning machine will be described below with reference to FIGS.

As shown in FIG. 1, a frame 1 of an open-end spinning machine has a large number of spinning units 2 arranged in a row on both sides along the longitudinal direction. A running rail 3 is disposed around the machine base 1 in a U-shape, and a doffing machine 4 as an automatic machine is supported in a suspended state. Each spinning unit 2 has a winding roller 5a as shown in FIG.
And a winding unit 5 provided with The doffing machine 4 moves on the traveling rail 3 to a position corresponding to the spinning unit 2 instructed by the control device C1 disposed on the machine base 1 side, and stops at a position corresponding to the spinning unit 2. And fried the full bobbin (package) F,
An operation of mounting the empty bobbin B on a bobbin holder (cradle) 6 (shown in FIG. 5) of the winding unit 5 is performed.

A conveyor 7 for carrying out a full bobbin is provided along the longitudinal direction of the machine 1 near the center of the machine 1.
Above a first end (right end side in FIG. 1) of the machine base 1, a full bobbin conveyor 8 is disposed so as to extend in a direction orthogonal to the conveyor 7. At the first end of the conveyor 7, the full bobbin F is received from the conveyor 7, and its direction is set to 9
A delivery device 9 for changing the angle by 0 ° and delivering it to the full bobbin conveyor 8 above the conveyor 7 is provided.

As shown in FIGS. 1 and 2, first and second empty bobbin transport conveyors 10,
Numerals 11 are respectively extended along the spinning unit row, that is, the winding unit row. Double empty bobbin conveyor 10,1
The first end 1 (the right end in FIG. 1) extends longer than the position corresponding to the spinning unit 2 located at the first end of the winding unit row. Double empty bobbin conveyor 10,
11 is a drive pulley 10a, 11a is a common drive shaft 12a
And a single drive device (for example, a motor) 12 drives the empty bobbin B to transport the empty bobbin B from the first end to the second end of the machine base 1. In addition, the two empty bobbin transport conveyors 10, 11 are provided with belts 10b, 11
b is guided by a guide roller (not shown) and the belt 10b,
11b is run while the upper surface thereof is kept substantially horizontal. Above the belts 10b and 11b, a regulating guide 13 (shown only in FIG. 6) for preventing the posture of the empty bobbin B from changing from a state parallel to the longitudinal direction of the machine base 1 is provided in the longitudinal direction of the machine base 1. It extends along the direction.

The transfer speed of the two empty bobbin transfer conveyors 10 and 11 is set such that the empty bobbin B to the bobbin holder 6 from the start of doffing.
The empty bobbin B is a value that can be transported from the first end to the second end of the empty bobbin conveyor 10 in a time until the mounting operation of the empty bobbin B is completed.

As shown in FIG. 5, the doffing machine 4 has a full bobbin F supported by a bobbin holder 6 of the winding unit 5 on a conveyor 7 or on a mounting portion 14 disposed in parallel with the conveyor 7. An extruding lever 15 is provided for pushing out. The pushing lever 15 has a roller 15a at the distal end, and rotates clockwise in FIG. 5 around a shaft 16 having a proximal end supported, thereby pushing out the full bobbin F. The mounting portion 14 includes a plate 17 which is inclined downward toward the conveyor 7, and a regulating bar 18 which engages with the full bobbin F extruded on the plate 17 to regulate the movement toward the conveyor 7. I have. The regulating bar 18 is driven by a driving device (not shown), and is rotated at a predetermined time interval to a position where the full bobbin F is allowed to move to the conveyor 7 side.
Move on the conveyor 7.

The doffing machine 4 is provided with a mounting arm 19 for mounting the empty bobbin B on the bobbin holder 6 from which the full bobbin F has been removed (doffed), above the roller 15a. The mounting arm 19 is rotated by a driving device (not shown) between a standby position indicated by a solid line in FIG. 5 and a bobbin transfer position indicated by a chain line. A bobbin catcher 20 is tiltably supported at the tip of the mounting arm 19. The mounting arm 19 and the bobbin catcher 20 constitute a bobbin transfer means for transferring the bobbin to the bobbin holder 6 of the winding unit 5.

As shown in FIGS. 6, 7 and 8, a supporting member 21 constituting the bobbin catcher 20 is rotatably supported by a shaft 22 fixed to the tip of the mounting arm 19 so as not to be rotatable. In addition, it is fixed to a first end of a cylinder 23 rotatably supported by a shaft 22 so as to be integrally rotatable. A fixed gripping piece 24a is fixed to the support member 21, and a support shaft 25 is rotatably mounted.
A movable gripping piece 24b and a lever 26 are supported on the support shaft 25 so as to be integrally rotatable, and a roller 26a is supported on the tip of the lever 26. The movable gripping piece 24b is rotationally urged in the gripping direction by a torsion spring (not shown) mounted between the support member 21 and the movable gripping piece 24b.

As shown in FIG. 8, a lever 27 rotatably supported by the shaft 22 is fixed to the second end of the cylinder 23 so as to be integrally rotatable, and a link device 2 for driving the lever 27 is provided.
8 are arranged along the mounting arm 19. The link device 28 is a drive shaft 2 rotated by a drive device (not shown).
9, a first link 28a rotatably connected to the first link 28a and a second end rotatably connected to the lever 27 while a first end is rotatably connected to the first link 28a. 2
And a link 28b. Then, the bobbin catcher 20 is in a state where the mounting arm 19 is arranged at the standby position, and the fixed gripping piece 24a easily receives the empty bobbin B from the empty bobbin capturing device 32 described later (the position indicated by a solid line in FIG. 7). At the delivery position where the fixed gripping piece 24a is closer to the mounting arm 19 than the receiving position (empty bobbin B).
Through the link device 28 and the lever 27 (see FIG. 7).

In the doffing machine 4, the movable holding piece 24b is held at the release position by engaging with the roller 26a near the tip of the mounting arm 19 when the mounting arm 19 is located at the standby position shown in FIG. A locking piece 30 is provided. Locking piece 30
Are configured to be movable to an engagement position where the actuator 31 engages with the roller 26a and a retracted position where the actuator 31 cannot engage with the roller 26a. An air cylinder or a solenoid is used as the actuator 31, and the locking piece 3 is always used.
0 is arranged at the engagement position, and when the bobbin catcher 20 is arranged at the standby position and the empty bobbin B is arranged on the fixed gripping piece 24a, the locking piece 30 is driven to be arranged at the retracted position. You.

An empty bobbin take-in device 32 is disposed in the doffing machine 4 above the pushing lever 15 and in front of the mounting arm 19. As shown in FIGS. 6, 9, and 10, the empty bobbin capturing device 32 includes a rotating shaft 35 supported via a bearing 34 on a frame 33 provided on the doffer 4. A support arm 36 is fixed at the base end so as to be integrally rotatable. The gripping device 37 is supported on the distal end side of the support arm 36 and includes a pair of leaf spring gripping pieces 39 supported by a pair of support rods 38 protruding from the side surface of the support arm 36. Both gripping pieces 39
Are located at the base end sides thereof at positions opposing each other.
A tension spring 42 for urging the gripping pieces 39 in a direction approaching each other, that is, in a gripping direction, is provided between the latching pins 41 protruding from the side surfaces of the restricting projections 40a and 40b. It is stretched.

The support arm 36 has regulating protrusions 40a, 40
The stopper pin 43 which is engaged with the stopper b and regulates the rotation of the gripping piece 39 in the gripping direction is fixed. Both regulating projections 40
The lengths of a and 40b are such that when the gripping device 37 is not gripping the empty bobbin B, they are in contact with each other and the distance between the tips of the gripping pieces 39 is kept slightly smaller than the outer diameter of the empty bobbin B;
When the empty bobbin B is gripped, the two are separated from each other, and the length is set so that the urging force of the tension spring 42 acts entirely on the gripping piece 39.

As shown in FIG. 9, a motor 44 capable of normal and reverse rotation is fixed to the frame 33, and a drive gear 45 fixed to an output shaft 44a and a driven gear 46 fixed to a rotation shaft 35. It is fixed so as to be integrally rotatable. Motor 4
4 rotates the rotating shaft 35 forward and reverse through the two gears 45 and 46 by the forward and reverse rotations, and grips the holding device 37 to hold the empty bobbin B placed on the empty bobbin conveyors 10 and 11. The support arm 36 is reciprocated so as to be arranged at a possible operation position and a removal position (standby position) in the doffer 4. The removal position in the doffing machine 4 is, as shown by a chain line in FIG. 6, near the bobbin catcher 20 arranged at the empty bobbin receiving position, with the tips of both gripping pieces 39 extending upward. Position.

A support arm 36 is provided at the second end of the rotating shaft 35.
A lever 47, which constitutes a position detecting means for detecting the position of the sensor, is integrally rotatably fixed, and has a detected part 47a
Is provided. The frame 33 includes a first detecting portion 47a for detecting the detected portion 47a when the gripping device 37 is disposed at the operation position.
And a second sensor 49 that detects the detection target portion 47a when the gripping device 37 is located at the removal position (standby position) is approximately 180 degrees around the rotation shaft 35.
° It is fixed at a position out of phase.

A pair of detaching members 50 having an L-shaped cross section are fixed to the frame 33 so that the grasping device 37 is located on a movement locus when the grasping device 37 moves between the operating position and the removing position. Have been. When the gripping device 37 moves from the operation position to the removal position side, the detaching member 50 moves the empty bobbin B whose bottom wall 50a is gripped by the gripping device 37.
And the empty bobbin B is removed from the gripping device 37, and the empty bobbin B is guided to the bobbin catcher 20 by the bottom wall 50a and the side wall 50b.

First and second positioning levers 51 and 52 are supported on the rotating shaft 35 on both sides of the gripping device 37 so as to be relatively rotatable at substantially the same interval as the length of the empty bobbin B. I have. The two positioning levers 51 and 52 are connected to the rotating shaft 35.
Are rotatably fixed to gears 53 and 54 which are supported so as to be relatively rotatable. Rotary solenoids 55 and 56 are fixed to the frame 33 above the rotation shaft 35, and gears 57 and 58 that mesh with the gears 53 and 54 are fixed to the output shaft so as to be integrally rotatable. Positioning levers 51, 5
6 and 9 through the gears 57 and 53 and the gears 58 and 54 by demagnetization of the rotary solenoids 55 and 56.
In FIG. 2, a rotary position is provided between a standby position extending above the rotation shaft 35 indicated by a chain line and a horizontally extending operation position indicated by a solid line. The positioning levers 51 and 52 are held at standby positions when the rotary solenoids 55 and 56 are in a demagnetized state.

Each of the positioning levers 51, 52 has a bobbin detection sensor 59, 6 capable of detecting an empty bobbin B in an engaged state with the positioning levers 51, 52 disposed at the operation position.
0 (shown in FIG. 10) is attached. The bobbin detection sensors 59 and 60 are mounted near the base ends of the positioning levers 51 and 52. Bobbin detection sensors 59, 60
For example, a reflective photoelectric switch is used.

The motor 44 and the rotary solenoid 55,
The operation of 56 is controlled by a command signal from a control device C2 (shown in FIGS. 1 and 5) as control means provided in the doffing machine 4. The control device C2 performs control based on detection signals of the first and second sensors 48 and 49 and the bobbin detection sensors 59 and 60. The control device C2 arranges one of the positioning levers on the downstream side in the transport direction of the empty bobbin B in the operation position first, and moves the other positioning lever to the operation position in a state where the movement of the empty bobbin is regulated by the positioning lever. The two rotary solenoids 55, 5
6 is controlled.

The control device C2 is configured to be able to send and receive signals to and from the control device C1 on the machine base 1 side, and the spinning unit 2 which requires operations such as doffing or the like according to a command from the control device C1.
It starts to move toward.

FIG. 9 shows a state in which the gripping device 37 of the empty bobbin take-in device 32 is disposed at the operation position, and the positioning levers 51 and 5 are provided.
2 is a partially omitted partially cutaway front view in a state where the reference numeral 2 is disposed at a regulation position, and FIG. 10 is a partially omitted plan view in that state. In FIG. 9, a state where the positioning levers 51 and 52 are arranged at the standby position is indicated by a chain line.

After the empty bobbin B is mounted on the bobbin holder 6, the doffing machine 4 hooks the yarn end of the seed yarn of the seed yarn package mounted on the doffing machine 4 to the bobbin holder of the bobbin holder 6. A known seed thread winding device (not shown) that has a function of winding a predetermined amount around the empty bobbin B is provided.

The doffing machine 4 includes a sensor (not shown) for detecting whether or not a doffing request display lamp (not shown) mounted on the spinning unit 2 is turned on, and a control device C1 on the machine base 1 side.
During the traveling in the predetermined direction, the stop at the position corresponding to the spinning unit 2 in which the doffing request display lamp is lit, the doffing operation and the splicing operation at the time of doffing are performed. I have.

As shown in FIGS. 1 and 2, the first
At the end, a bobbin supply device 61 for supplying an empty bobbin B onto both empty bobbin transport conveyors 10 and 11 is provided.
The bobbin supply device 61 includes an empty bobbin storage device 62, a delivery arm 63 and a belt conveyor 64 that constitute delivery means.
And a bobbin delivery mechanism 65 as a direction changing means. The empty bobbin accommodating device 62 is disposed on one side of the machine base 1, and the empty bobbin B is placed in a state in which a number of empty bobbins B are present in a plane whose axis is orthogonal to the longitudinal direction of the empty bobbin transport conveyors 10, 11. In this embodiment, the stock is stored in a state substantially orthogonal to the longitudinal direction of the machine base 1.

As shown in FIGS. 3 and 4, the empty bobbin accommodating device 62 includes a box-shaped housing 66 having an open front surface. In the housing 66, an endless chain 67 is provided horizontally above the housing 66. And is wound around the drive sprocket 68 and a number of guide sprockets 69 so as to extend in a meandering manner in the vertical direction in other places. The drive sprocket 68 moves the motor 7 so that the chain 67 moves in the direction of the arrow in FIG.
0 intermittently drives through a gear train 71 (shown in FIG. 4). Each sprocket 68, 69
The support plate 72 for supporting the motor 70 and the like is disposed with its front surface inclined slightly upward. On the chain 67, a support rod 73 for supporting the empty bobbin B is provided on the front side of the housing 66 at a predetermined pitch so as to be orthogonal to the transition surface of the chain 67. A guide plate 72a is provided between the sprockets 68, 69 and between the sprockets 69, 69 for guiding the support rod 73 to prevent the chain 67 from vibrating. A transport unit that intermittently transports the empty bobbin B being accommodated by the chain 67, the motor 70, and the like is configured.

An extruding device 74 is provided at the upper part of the housing 66.
The pushing device 74 includes a cylinder 75 and a locking piece 76 fixed to the tip of a piston rod 75a. The locking piece 76 is a piston rod 75a.
When the support rod 73 projects, it moves by engaging with the bobbin B supported by the support rod 73, and pushes out the bobbin B to the front side.
3 is released. The delivery arm 63 is a motor 7
A base end is fixed to a bracket 78 fixed to the drive shaft 7, and a grip portion 79 having the same configuration as the bobbin catcher 20 is fixed to a distal end thereof. A locking piece 80a that engages with the roller 26a and holds the movable gripping piece 24b at the release position when the delivery arm 63 is located at the receiving position where the delivery arm 63 extends horizontally is provided at the upper portion of the housing 66. Above the housing 66, there is provided a locking piece 80b that engages with the roller 26a and holds the movable gripping piece 24b at the release position when the delivery arm 63 is located at a delivery position that extends vertically.

As shown in FIG. 3, when the grip portion 79 is located at the receiving position, the two gripping pieces 24a and 24b face upward and are released, and when the gripping portion 79 is located at the delivery position, both gripping pieces 24a and 24b are in the released state. It is fixed to the transfer arm 63 so as to be in a released state facing obliquely downward. A sensor S1 for detecting an empty bobbin B on the grip portion 79 disposed at the receiving position is provided at an upper portion of the housing 66.

The belt conveyor 64 is provided with the empty bobbin accommodation device 6
The upper portion 2 is disposed so as to be orthogonal to the longitudinal direction of the machine base 1 so that the large-diameter portion of the empty bobbin B is transferred to the front side. The belt conveyor 64 is located below the gripper 79 when the first end is located at the delivery position,
It is arranged so that the end is located near the center in the width direction of the machine base 1. Empty bobbins B on both sides of the belt conveyor 64
(Shown in FIG. 2), and a sensor S2 for detecting an empty bobbin B is provided at a position corresponding to the second end of the belt conveyor 64.
The belt conveyor 64 is continuously driven by a drive motor 81. Also, the belt conveyor 64
In the position corresponding to the second end of the belt conveyor 64, the empty bobbin B conveyed to the second end of the belt conveyor 64 is engaged with the empty bobbin B to regulate its movement, and the empty bobbin B can be gripped by the bobbin delivery mechanism 65. A restricting member (not shown) for holding at a proper gripping position is provided.

As shown in FIG. 2, the bobbin transfer mechanism 65 is rotated by about 90 ° left and right about the center of the machine base 1 at a position corresponding to the first ends of the two empty bobbin transport conveyors 10 and 11. A movable arm 82 is provided. The base end of the arm 82 is disposed vertically and the gear train 83
Is fixed to a rotating shaft 84 a driven by a motor 84 via an arm 82 so as to be integrally rotatable.
Has been fixed. The arm 82 is rotated forward and reverse by a motor 84 so that the holding portion 85 holds the empty bobbin B on the belt conveyor 64 at a standby position as a holding position, and a first delivery position corresponding to the first empty bobbin transport conveyor 10. Is moved to the second empty bobbin transport conveyor 11 and the corresponding second delivery position.

The grip 85 also includes a fixed gripping piece 24a and a movable gripping piece 24b similar to those of the bobbin catcher 20, and has a different configuration for rotating the movable gripping piece 24b. The grip portion 85 is fixed to the arm 82 such that the grip pieces 24a and 24b face downward to be released. A rotary actuator (rotary solenoid) 86 is fixed to the base end side of the arm 82, and a lever 87 is fixed to the drive shaft so as to be integrally rotatable. The movable gripping piece 24b is integrally rotatably fixed to the support shaft 25, and the lever 26 and the lever 87 fixed to the support shaft 25 are connected by a connection rod 88. Then, the movable gripping piece 24b is rotated between the release position and the gripping position by the operation of the rotary actuator 86.

Based on the detection signals from the sensors S1 and S2 and the empty bobbin request signal from the controller C2, the control device C1 performs the operation of supplying the empty bobbins to the corresponding empty bobbin conveyors 10 and 11 so as to perform the bobbin supply operation. The delivery mechanism 65 and the delivery arm 63 are controlled in parallel. That is, when an empty bobbin request signal is input from the doffer 4, both sensors S1, S2
It is determined whether or not a detection signal is input from the motor 84 and the motor 84 and the motor 7 while the detection signal is input.
7 are driven simultaneously. At the same time, the motor 7
0 is driven. The motors 77 and 84 are provided with rotary encoders (not shown), and the control device C1 controls the amount of turning of the transfer arm 63 and the arm 82 based on the output signal.

Next, the operation of the device configured as described above will be described. Prior to the operation of the spinning machine, the empty bobbin accommodation device 62
The empty bobbin B is loosely inserted into almost all the support rods 73. The transfer arm 63 is arranged at a receiving position, and the arm 82 is arranged at a standby position where the gripper 85 corresponds to the second end of the belt conveyor 64. The operation of the machine 1 is started from this state. Simultaneously with the start of the operation of the machine base 1, the driving of the two empty bobbin conveyors 10, 11 and the belt conveyor 64 is started. Each conveyor 10, 11, 64 is machine base 1.
Is operated continuously during the operation of.

The spinning unit 2 winds the yarn spun from the spinning section around the bobbin by the action of the winding roller 5a while traversing the yarn with a traverse guide (both not shown). When the sliver is full, the supply of raw material sliver is stopped,
The bobbin holder 6 of the spinning unit 2 is moved upward to place the full bobbin F at a predetermined position separated from the winding roller 5a. Also, the doffing request lamp is turned on. The control device C1 of the machine base 1 stores the full spinning unit 2 and, based on the doffing request signal from the spinning unit 2,
The doffing command signal is output to the control device C2 of the doffing machine 4 in a standby state. The doffing command signal instructs the traveling direction of the doffing machine 4 and which side of the machine base 1 the spinning unit 2 that requires doffing is located.

The doffing machine 4 moves along the traveling rail 3 in the direction in which the spinning unit 2 requiring work exists in accordance with a command from the control device C1, and the doffing request display lamp is lit. Stop at the position corresponding to 2, and perform doffing work, bobbin mounting work, and the like. When the doffing machine 4 is stopped at the standby position, the bobbin catcher 20
Is located at a standby position indicated by a solid line in FIG. 5, and the empty bobbin B is in a state of being gripped by both gripping pieces 24a and 24b. Further, the gripping device 37 is also arranged at a standby position indicated by a solid line in FIG.

When the doffing machine 4 stops at a position corresponding to the spinning unit 2 requiring work, the control device C2 sets the machine base 1
And outputs the empty bobbin request signal and the position of the spinning unit 2 for performing the work with respect to the machine 1 (whether the machine is on the left or right side of the machine 1). When the empty bobbin request signal from the control device C2 is input to the control device C1, the control device C1 confirms that the empty bobbin detection signals from both sensors S1 and S2 are input, and then the doffer 4 The bobbin transfer mechanism 65 and the transfer arm 63 are controlled in parallel so that the empty bobbin B is supplied to the empty bobbin transport conveyor 10 or the empty bobbin transport conveyor 11 on the side corresponding to the spinning unit 2 where the work is performed. At the same time, the control device C1 also drives the transport means provided in the empty bobbin accommodation device 62. Hereinafter, when the position of the spinning unit 2 on which the doffer 4 works is on the left side of the machine base 1 (the lower side in FIG. 1), that is, the doffing machine 4
Is stopped at a position corresponding to the first empty bobbin conveyor 10.

A normal rotation command is output from the control device C1 to the motor 84 to start driving the motor 84, and the arm 82 is turned clockwise in FIG. The motor 84 is stopped at the position where the arm 82 is turned by 90 °, the rotary actuator 86 is operated to move the movable gripping piece 24b to the release position, and the empty bobbin B is supplied onto the empty bobbin transport conveyor 10. . Then, the empty bobbin B is transported toward the second end of the machine base 1, that is, toward the position where the doffer 4 is on standby. When the gripper 85 releases the empty bobbin B, the motor 84 is reversed and the arm 82 is placed at the original position (standby position). Although the empty bobbin B is orthogonal to the longitudinal direction of the machine base 1 when it is positioned on the belt conveyor 64, the empty bobbin B gripped by the gripper 85 by the arm 82 turning 90 ° from the standby position.
Is automatically changed to be parallel to the empty bobbin transport conveyors 10 and 11 so that the large diameter portion of the empty bobbin B is always on the same side.

The motor 77 also starts to rotate forward at the same time as the motor 84, and the delivery arm 63 is turned upward by 90 ° from the receiving position shown by the solid line in FIG. 3 to the delivery position shown by the chain line. When the grip 79 is located at the receiving position, the movable gripping piece 24b is at the release position, but is immediately located at the gripping position and grips the empty bobbin B as soon as it starts turning. Then, when the movable gripping piece 24b is disposed at the release position again, the bobbin B gripped by the gripper 79 is moved to the first position of the belt conveyor 64 when the belt is positioned at the delivery position corresponding to the first end of the belt conveyor 64. Delivered to the end. Next, the motor 77 is driven to rotate in the reverse direction, and the gripper 79 is again placed at the receiving position. If the bobbin detection signal is not output from the sensor S1 in a state where the grip portion 79 is located at the receiving position, the cylinder 75 is operated and the piston rod 75a is moved by one stroke. Then, the empty bobbin B supported by the support rod 73 is pushed out to a position corresponding to the grip portion 79 by the locking piece 76, and is disposed on the grip portion 79 in the released state.

The driving of the motor 70 is started simultaneously with the motors 77 and 84. The motor 70 drives the chain 67 by the arrangement pitch of the support rod 73. Therefore, even if the driving speed is low, the movement is completed before the transfer arm 63 returns to the receiving position, and the support rod 73 into which the empty bobbin B is loosely inserted can correspond to the grip portion 79 arranged at the receiving position. It becomes a state.

The empty bobbin B released from the holding portion 79 is conveyed to the second end of the belt conveyor 64, and when it reaches the second end, it engages with the regulating member and holds its movement restricted. Is done. Then, after the arm 82 that has supplied the empty bobbin B onto the empty bobbin transport conveyor 10 returns to the standby position, when an empty bobbin detection signal is input from the sensor S2 to the control device C1, the rotary actuator 86 is operated, The movable bobbin 24b is arranged at the gripping position and the empty bobbin B is gripped.

On the other hand, after outputting the empty bobbin request signal, the control device C2 outputs an excitation command to the second rotary solenoid 56 on the side opposite to the side corresponding to the first end of the machine base 1. As a result, the second positioning lever 52 is located at the operating position. Further, the doffing operation is started by a command from the control device C <b> 2, detached from the bobbin holder 6 by the action of the pushing lever 15, and the full bobbin F is doffed on the mounting portion 14. Further, the empty bobbin B held by the bobbin catcher 20 is mounted on the bobbin holder 6 after the full bobbin F has been removed. In addition, while the doffing operation is being performed, the empty bobbin B transported by the first empty bobbin transport conveyor 10 comes into contact with the second positioning lever 52. In this state, the first positioning lever 5
After 1 is arranged at the operation position, the gripping device 37 is arranged at the operation position, and the empty bobbin B is gripped by the gripping device 37.
When the mounting operation of the empty bobbin B to the bobbin holder 6 is completed and the mounting arm 19 and the bobbin catcher 20 return to the standby position, the gripping device 37 is rotated to the standby position, and the empty bobbin B is moved to the bobbin catcher 20. It is handed over and the preparation for the next fried egg is completed. When the gripping device 37 moves to the standby position, the support arm 36 and the positioning levers 51 and 52 are rotated at the same speed, and the positioning lever 5
After the rollers 1 and 52 have been rotated by approximately 90 ° and stopped at the standby position, the support arm 36 continues to rotate further to the standby position.

When the empty bobbin B is disposed on the fixed gripping piece 24a, the empty bobbin B is detected by a sensor (not shown), and the detection signal activates the actuator 31 so that the locking piece 30 is disposed at the retracted position and the movable gripping piece is moved. The piece 24b is arranged at the gripping position. After that, the bobbin catcher 20 is rotated downward by the operation of the link device 28 and is arranged at the delivery position, the empty bobbin B is completely taken in, and the next doffing preparation operation is completed. When the control device C2 has completed all necessary operations, it can be moved to the control device C1.
That is, it outputs an instruction signal indicating that the work can be performed in another spinning unit 2. Then, the doffing machine 4 waits at that position until the next command is issued from the control device C1 of the machine base 1, and when there is a traveling command from the control device C1 to the spinning unit 2 which requires doffing, the doffing machine 4 receives the command. Start running according to the command.

When the working position of the doffing machine 4 is on the side corresponding to the second empty bobbin transport conveyor 11, the bobbin delivery mechanism 6
When the arm 5 is driven, the arm 82 moves counterclockwise from the standby position by 9
The point that the empty bobbin B is supplied to the second empty bobbin conveyor 11 after being turned by 0 ° is different from the point that the first positioning lever 51 is first arranged at the operation position when the empty bobbin take-in device 32 operates. .

This embodiment has the following effects. (B) Based on the empty bobbin request signal, the empty bobbin B is supplied to the direction changing means (the bobbin delivery mechanism 65 in this embodiment) and the delivery means (the delivery arm 63 in this embodiment).
Is held, the operation of supplying the empty bobbin B to the empty bobbin transport conveyors 10 and 11 by both means is performed in parallel. As a result, the empty bobbin B can be supplied to the doffing machine 4 requesting the empty bobbin B in a short time after the empty bobbin request signal is output. In addition, when a dedicated doffer 4 is provided on each of the left and right sides of the machine base 1 and the empty bobbin request signal is simultaneously output from the two doffers 4, the doffer 4 The empty bobbin B can be supplied within the time of the doffing cycle.

(B) The direction of the empty bobbin B is automatically changed by turning 90 ° from the standby position while the direction changing means grips the empty bobbin B, and the empty bobbin conveying conveyor 10,
11 and is changed so that the large diameter portion of the empty bobbin B is always on the same side. Therefore, unlike the conventional device, a complicated mechanism such as a differential gear device for changing the direction of the empty bobbin B is not required.

(C) Since the drive unit of the delivery means is composed of the delivery arm 63 which is reciprocally rotated (reciprocatedly rotated) and the belt conveyor 64 which is operated continuously, the delivery arm 6 is provided.
The empty bobbin B is transported to a predetermined position even if the delivery from the third to the belt conveyor 64 is not confirmed, and the control of the delivery means is simplified.

(D) Both empty bobbin conveyors 10, 1
Since the machine 1 is operated continuously during the operation of the machine base 1, the drive control of the two empty bobbin conveyors 10, 11 and the arm 82 is simplified.

(E) The driving of the transfer means (such as the chain 67), the transfer means (the transfer arm 63), and the bobbin transfer mechanism 65 provided in the empty bobbin accommodating device 62 are simultaneously started based on the empty bobbin request signal. Is done. Therefore, unlike the case where the sequential driving is started from the empty bobbin accommodating device side as in the conventional device, the number of sensors required for control is reduced, the manufacturing cost is reduced, and the control is simplified.

(F) Since only two empty bobbins B exist in the middle of the transport path from the empty bobbin accommodating device 62 to a position corresponding to the doffing machine 4, the number of necessary empty bobbins is reduced. Further, when the empty bobbin B needs to be changed to another type (color, size, and the like) for switching the type of spun yarn, maintenance becomes easy.

(G) Empty bobbin conveyor belt conveyor 1
Since there are no more than two empty bobbins B on the belt conveyors 0 and 11, there is no risk of bobbin jamming. (H) The empty bobbin B supplied from the empty bobbin supply device 62 is conveyed by the belt conveyors 10, 11, and 64 continuously operated in one direction, and the transfer arm 63 and the arm reciprocatingly rotating (reciprocatingly rotating). 82. Therefore, the operation of the drive unit is simple, and there is no part utilizing the rolling in the middle of the route, so that the reliability is improved and the bobbin is not clogged.

(I) Since only one empty bobbin B is held without mounting a bobbin magazine on the doffing machine 4, the power consumption for moving the doffing machine 4 is reduced, and the bobbin magazine has no empty bobbin. Problems such as clogging are surely eliminated. In addition, when the doffing operation is stopped at a position corresponding to the spinning unit 2 requiring the doffing operation, the operation can be started immediately, and the time required to be able to move to the next operation position is reduced.

(D) During the doffing operation of the doffing machine 4, the empty bobbin B used for the next doffing operation is taken in from the empty bobbin conveying conveyors 10 and 11, so that the doffing machine 4 corresponds to the spinning unit 2. After stopping at the position, the control device C on the machine base 1 side
Even if the empty bobbin request signal is output to the first bobbin 1, there is no possibility that the mounting of the empty bobbin B to the bobbin holder 6 is delayed.

(L) Empty bobbin conveyors 10 and 11
Since the upper empty bobbin B is gripped by the gripping device 37 and taken into the doffing machine 4 in a state where it is regulated (positioned) at a predetermined position, the empty bobbin B can be delivered to the bobbin catcher 20 in a stable state. . Therefore, even if a taper bobbin is used instead of a straight bobbin as the bobbin, the delivery error to the bobbin catcher 20 is reduced.

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS. In this embodiment, the configuration of the direction changing means is different from that of the above embodiment, and the other configuration is the same as that of the above embodiment. The same parts as those of the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 11 is a schematic plan view showing an arrangement relationship between the direction changing means and the belt conveyor 64, and FIG.
FIG. 3 is a schematic side view, partly omitted, showing an arrangement relationship between the direction changing means, the empty bobbin conveyors 10, 11 and the belt conveyor 64.

The direction changing means is constituted by a conveyor device 89 which is rotated forward and backward. The conveyor device 89 includes a drive pulley 90 and a driven pulley 91 having a shaft provided vertically.
Endless belt 9 wound almost semicircularly between
2 and a pair of guide portions 93 having an L-shaped cross section that form a semicircular conveyance path along the belt 92. The drive pulley 90 is driven by a motor 94 that can be driven forward and reverse. Both ends of the guide portion 93 are extended to above the empty bobbin conveyors 10 and 11. The belt 92 has two engaging portions 95a and 95b that engage with the end surface of the empty bobbin B supported on the support piece 93a of the guide portion 93 and move the empty bobbin B along the guide portion 93. 9
It is fixed in a state substantially orthogonal to 2. Both engagement parts 95
a, 95b intersect with the support piece 93a, and the engaging portions 95a, 95b
Are fixed at intervals that do not interfere with the empty bobbin B when the moving direction is changed at a position corresponding to the end of the bobbin.

The guide portion 93 is disposed at a position where the upper surface of the support piece 93a is lower than the upper surface of the belt conveyor 64. At the center of the guide portion 93 on the side of the belt conveyor 64, the guide portion 93 moves from above the belt conveyor 64 to above the support piece 93a. The opening 93b (illustrated in FIG. 11) which allows the above is cut out.
A sensor S2 for detecting an empty bobbin B disposed between the engaging portions 95a and 95b is provided above the guide portion 93 corresponding to the introduction portion 93b.

An extruder 96 is provided at a position corresponding to the second end of the belt conveyor 64. The pushing device 96 includes a cylinder 97 and an engaging member 98 fixed to a piston rod 97a. The engagement member 98 has guide pieces 98a and 98b extending in parallel at intervals substantially equal to the length of the empty bobbin B.
The guide piece 98a located on the second end side of the
8 is located at the standby position shown in FIG.
It is formed to a length that can be engaged with the empty bobbin B on the belt conveyor 64 and restrict its movement.

In this embodiment, as shown in FIG.
A state in which the two engaging portions 95a and 95b are arranged at positions sandwiching the introduction portion 93a is a standby position of the conveyor device 89.
When the controller C1 receives the empty bobbin request signal, the controller C1 confirms that the ON signals are output from both the sensors S1 and S2 in the same manner as in the above-described embodiment.
The driving of 77 and 94 is started. The drive pulley 90 is rotated clockwise in FIG. 11 by the forward rotation of the motor 94, and the portion of the belt 92 corresponding to the guide portion 93 travels toward the first empty bobbin conveyor 10 side. As a result, the empty bobbin B supported on the support piece 93a of the guide portion 93 is pushed by the engagement portion 95a and moves on the support piece 93a,
It is supplied on the first end of the first empty bobbin conveyor 10. On the other hand, when the motor 94 is driven to rotate in the reverse direction, the drive pulley 90 is rotated counterclockwise in FIG.
The portion corresponding to the guide portion 93 travels toward the second empty bobbin transport conveyor 11 side. As a result, the empty bobbin B supported on the support piece 93a of the guide section 93 is pushed by the engaging portion 95b and moves on the support piece 93a, and the first bobbin B of the second empty bobbin transport conveyor 11 is moved. Supplied above.

When the control unit C1 drives the predetermined rotation motor 94 for rotating the belt 92 to the predetermined position where the engaging portions 95a and 95b push the empty bobbin B from above the guide portion 93, the motor rotates in the opposite direction. After driving by the same amount of rotation, driving of the motor 94 is stopped. Then, after a lapse of a predetermined time sufficient for the empty bobbin B supplied onto the belt conveyor 64 by the transfer arm 63 to be conveyed to a position corresponding to the extruder 96,
The extruder 96 is operated. The operation of the extruder 96 causes the empty bobbin B on the belt conveyor 64 to move to the engagement member 9.
8 and is supplied onto a conveyor device 89.

Therefore, also in this embodiment, the first
The effects (a) to (c), (e) to (g), and (li) to (l) of the embodiment (1) are exhibited. The embodiment is not limited to the above, and may be embodied as follows, for example.

The bobbin delivery mechanism 65 does not stand by while holding the empty bobbin B in the grip portion 85, but simply waits in a state where the empty bobbin is received in the grip portion 85, and waits for an empty bobbin request signal. You may hold it. Even in this case, since the empty bobbin B is substantially held by the bobbin delivery mechanism 65, substantially the same effect as that of the first embodiment can be obtained.

○ Sensors S1 and S2 for detecting empty bobbin
May be omitted. In this case, it suffices that the holding of the empty bobbin B by the bobbin transfer mechanism 65 and the operation of the transfer means 67 and 70 of the empty bobbin accommodating device 62 are performed by an empty bobbin request signal.

Instead of the configuration in which the empty bobbin transport conveyors 10 and 11 are continuously operated during the operation of the machine base 1, the motors 70, 77, 84 and 94 are simultaneously driven based on the empty bobbin request signal and controlled. It may be configured to stop based on a work completion signal from the device C2. In this case, although the control is more complicated than in the continuous operation, it is not necessary to newly output a request signal for starting and stopping the drive. In addition, the power consumption is reduced as compared with the case of continuous operation.

The bobbin may be replaced with a completely empty bobbin B, and a seed yarn bobbin around which a seed yarn is wound may be used. The bobbin may be a straight bobbin or a taper bobbin.

When the empty bobbin conveyors 10 and 11 are operated intermittently, the driving is started based on the empty bobbin request signal, and the empty bobbin B is stopped by the positioning lever 51,
A configuration may be adopted in which the detection is performed based on a detection signal indicating that the state subject to the regulation by 52 has been entered. Also in this case, the power consumption is smaller than in the case of continuous operation. Further, when the seed thread bobbin is used as an empty bobbin, the seed thread bobbin is not held in a sliding state with the belt conveyor for a long time in a state where the seed thread bobbin is restricted by the positioning levers 51 and 52, and the risk of thread damage is reduced. .

Instead of continuously operating the belt conveyor 64, the driving of the drive motor 81 is started based on the empty bobbin request signal, and stopped based on the work completion signal from the control device C2. You may drive in a typical manner. The drive motor 81 may be stopped based on a detection signal indicating that the empty bobbin B has been restricted by the positioning levers 51 and 52. In any case, the power consumption is smaller than in the case of continuous operation.

A bucket conveyor may be used instead of the delivery arm 63 constituting the delivery means, and the bucket conveyor may be operated intermittently in one direction. In this case, a motor that can be rotated in one direction instead of being able to rotate forward and backward can be used.

The empty bobbin intake device 32 of the doffing machine 4
Alternatively, a configuration in which a pair of arms grip both ends of the empty bobbin B may be used. In this case, the positioning lever that regulates the movement of the empty bobbin also serves as the holding device.

When the doffing machine 4 circulates along the traveling rail 3 and stops at the position corresponding to the spinning unit 2 where the doffing request display lamp is lit, the doffing operation is performed. It is good also as a structure which starts round traveling again.

Each spinning unit 2 is provided with a display unit (for example, a lamp or a dog) indicating which side of the machine base 1 is located, and the doffing machine 4 is provided with a detecting means for detecting the display unit. Then, the control device C2 determines the empty bobbin transport direction based on the detection signal of the detection means, and determines which of the positioning levers 51 and 52 is to be disposed first in the operation position. This is particularly effective in a system in which the doffing machine 4 travels round.

In the second embodiment, a sprocket may be used instead of the driving pulley 90 and the driven pulley 91, and a chain may be used instead of the belt 92. In this case, by using a link plate in which the engaging portions 95a and 95b are integrally formed, the engaging portions 95a and 95b are formed.
Mounting becomes easier.

The present invention is not limited to the open-end spinning machine, but may be applied to a binding spinning machine, a winder or the like. Inventions other than those described in the claims that can be grasped from the embodiment will be described below together with their effects.

(1) In the invention according to claim 1 or 3, the drive of the double empty bobbin transport conveyor and the belt conveyor is started based on the doffing request signal, and the doffing completion signal or the empty bobbin is doffed. The operation is stopped based on a detection signal of a detection unit that detects that the vehicle has reached a position facing the machine. In this case, the power consumption is smaller than in the case of continuous operation.

[0090]

As described in detail above, according to the first to fourth aspects of the present invention, a large number of empty bobbins can be accommodated without increasing the size of the empty bobbin accommodating device, and an automatic machine is required. By this time, empty bobbins can be reliably supplied and the control is simplified.

According to the second aspect of the present invention, unlike the conventional device, the arm provided with the gripping portion is pivoted without using a complicated mechanism such as a differential gear device to change the direction of the empty bobbin. Since the direction of the empty bobbin is changed by the reciprocating rotation, the structure is simple and the control is easy.

According to the third aspect of the present invention, the empty bobbin is conveyed to a predetermined position without confirmation of the transfer from the transfer arm to the belt conveyor, and the control of the transfer means is simplified. According to the fourth aspect of the present invention, since the double empty bobbin transport conveyor is continuously operated during the operation of the machine base, the drive control of the double empty bobbin transport conveyor and the arm is simplified.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing a spinning machine stand and a doffing machine according to a first embodiment.

FIG. 2 is a partial schematic perspective view of an empty bobbin replenishing device.

FIG. 3 is a schematic front view of the empty bobbin accommodation device.

FIG. 4 is a schematic side view of the empty bobbin storage device.

FIG. 5 is a schematic side view showing the relationship between the doffing machine and the machine base.

FIG. 6 is a schematic side view showing an empty bobbin capturing device.

FIG. 7 is a main part side view showing the relationship between the link device and the bobbin catcher.

FIG. 8 is a front view of the same main part.

FIG. 9 is a partially cutaway schematic front view of the empty bobbin capturing device.

FIG. 10 is a schematic plan view of an empty bobbin capturing device.

FIG. 11 is a schematic plan view of a direction changing unit according to the second embodiment.

FIG. 12 is a schematic side view similar to FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Machine stand, 2 ... Spinning unit, 3 ... Running rail, 4 ... Doffer as automatic machine, 5 ... Winding unit, 6 ... Bobbin holder, 10 ... First empty bobbin transport conveyor, 11 ... Second
Empty bobbin conveyor, 62 ... empty bobbin storage device, 6
Reference numeral 3 denotes a delivery arm constituting a delivery means; 64 a belt conveyor; 65 a bobbin delivery mechanism as a direction conversion means; 79, 85 a gripping portion; 82 an arm constituting a direction conversion means; 84 a drive device; Motor: 89: Conveyor device constituting direction changing means, C1: Control device as control means, C2: Control device, B: Empty bobbin, F: Full bobbin.

Claims (4)

[Claims] 1. The apparatus moves along a rail extending along a spinning machine, stops at a position corresponding to a winding unit, performs a doffing operation and a mounting operation of an empty bobbin, and moves along a row of winding units. An empty bobbin replenishing device for an automatic machine to which empty bobbins are replenished via an extended empty bobbin transport conveyor, the first and the second bobbin extending along a winding unit row on both sides of a spinning machine stand. A second empty bobbin conveyor, which is arranged at an end of the spinning machine table and accommodates a large number of empty bobbins in a state where their axes are present in a plane orthogonal to the longitudinal direction of the two empty bobbin conveyors; An empty bobbin accommodating device provided with a transport means for intermittently transporting an empty bobbin being accommodated, and an empty bobbin disposed at a position corresponding to an end of the empty bobbin transport conveyor, and onto a predetermined empty bobbin transport conveyor The direction of the empty Bobi Direction changing means for transferring in a state extending along the longitudinal direction of the transfer conveyor, receiving means for receiving an empty bobbin from the empty bobbin accommodating device, and transferring the direction to the direction changing means; and Based on the empty bobbin request signal from the automatic machine while the empty bobbin is held, the direction change means and the delivery means are controlled in parallel so as to perform an empty bobbin supply operation to the corresponding empty bobbin transport conveyor. An empty bobbin replenishing device for an automatic spinning machine, comprising: 2. An arm provided with a grip for gripping an empty bobbin on the delivery means, a gripping position for gripping the arm on the empty bobbin on the delivery means, and the first empty bobbin. 2. The automatic spinning machine according to claim 1, further comprising a driving device for turning and moving between a first delivery position corresponding to the transport conveyor and a second delivery position corresponding to the second empty bobbin transport conveyor. Empty bobbin replenishing device. 3. A delivery arm having a holding portion for receiving and holding an empty bobbin supplied from the empty bobbin housing device, and a delivery arm released from the delivery arm up to a holding position by the direction conversion means. The apparatus for supplying an empty bobbin to an automatic spinning machine according to claim 1 or 2, further comprising a belt conveyor for conveying the belt, wherein the belt conveyor is continuously operated during operation of the spinning machine stand. 4. The empty bobbin replenishing apparatus for an automatic spinning machine according to claim 1, wherein the two empty bobbin transport conveyors are continuously operated during operation of the spinning machine stand.