JPH0375475B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a work cart in an automatic winder.

[Conventional technology]

Among automatic winders having a large number of winding units arranged in parallel, there are those in which each unit is provided with an automatic yarn splicing device, or those equipped with a yarn splicing cart that moves between a plurality of units.

In a winder equipped with such an automatic yarn splicing device, the yarn is forcibly cut in order to remove defective parts of the yarn being wound, and the spinning bobbin on the yarn feeding side has no yarn left. , or thread breakage may occur due to other causes. In any of the above cases, the winding operation is temporarily stopped, and in a winder having a yarn splicing device in each unit, the yarn splicing operation is immediately started, and the yarn end on the winding side and the yarn end on the yarn feeding side are connected to the yarn splicing device. Thread splicing is performed by . In addition, in a winder having a yarn splicing cart that moves along multiple units, a yarn splicing command signal is issued mechanically or electrically from the unit where the yarn breakage has occurred, and the yarn splicing cart that is running The winding unit stops at the position where the splicing command is given and splices the yarn.

In any of the above types of winders,
In a certain winding unit, if a yarn splicing operation is performed and the yarn splicing is successful, the winding operation will be restarted, but if the yarn splicing fails and the yarn splicing is not successful even after the set number of yarn splicing operations, the winding operation will be restarted. The yarn splicing impossible display means of the winding unit indicates that the yarn splicing is impossible.

[Problem that the invention seeks to solve]

The winding unit that is stopped due to being unable to splice the yarn is extremely inefficient if it remains stopped unless an operator discovers it. It is also possible to restart the splicing by means of a splicing carriage or other carriages moving along the unit. However, even if a yarn splicing operation is attempted for a unit whose previous yarn splicing operation failed, the probability of success is extremely low. For example, if the cause of the previous yarn splicing error was the unsupplied yarn bobbin, the probability of a successful yarn splicing would be high if the yarn feeding bobbin had already been supplied during the current yarn splicing operation, but the cause of the yarn splicing error If this is due to a mistake in picking up the yarn end on the package cage side, the yarn end may become entangled in the yarn layer or fall off, and the probability of success is extremely low even if the yarn splicing operation is simply performed again.

The present invention aims to solve the above problems.

[Means for solving problems]

The present invention provides a work cart that moves along the winding unit with a mechanism for removing the cause of yarn splicing failure, and gives a command to start the yarn splicing operation to the unit that has stopped due to the yarn splicing being impossible, and in particular, removes the thread splicing from the yarn end on the package side. This device is designed to operate a device that makes it easier for people to be exposed.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2, a large number of winding units 2 are arranged in parallel to form an automatic winder 1, and a work cart 3 that runs along the winding units 2 is equipped. In the case of this embodiment, the work cart 3 that includes an automatic doffing device is used as the work cart. As shown in the first diagram, the winding unit 2 transfers the yarn 5 pulled out from the yarn supply bobbin 4 by a set amount to a winding package 9 rotated by a traverse drum 8 through a tension device 6, a slab catcher 7, etc. It is used to wind up thread. Further, each unit is equipped with a yarn splicing device 10, and the yarn end on the bobbin 4 side and the yarn end on the package 9 side are spliced by known means.

Further, on the front surface of the winding unit 2, a thread splicing failure display means 12 is provided, which is comprised of a yellow button 11 or the like that projects forward when the thread splicing fails despite a predetermined number of thread splicing operations. Therefore, while the button 11 is in the protruding position, winding of the winding unit is stopped.
By pressing the button 11, the yarn splicing operation is automatically restarted. Note that the other button 13 is a switch for driving the drum. That is,
The button 11 for indicating that thread splicing is not possible can be positioned in two positions: a protruding position and a pushed-in position.
is a switch button that turns on when pressed and the drum begins to rotate, and when the button is released, the spring force returns the button to its original position, but the drum continues to rotate.

In addition, a work cart 3 that runs along the above-mentioned unit
is suspended from the ceiling rails 14, 14 via wheels, and travels back and forth or around the winding unit. Although the above-mentioned cart 3 is shown as an automatic doffing cart in this embodiment, another cart, for example, runs below the unit along a rail on the floor surface and supplies spinning bobbins to the unit during the run. It may be a bobbin supply truck that moves along the bobbin, or a moving body that moves along with other units.

As shown in the first diagram, the trolley 3 includes a first detection means 15 for detecting a yarn splicing impossible unit, and a first detection means 15 that is activated by the detection means 15 to cancel the yarn splicing impossible display and forcibly execute the yarn splicing. A yarn splicing command means 16 is provided. In this embodiment, a phototube sensor is used as the detection means 15, and an arm 17 for pushing the button 11 is used as the yarn splicing command means 16.

In FIGS. 3 and 4, thread splicing impossible display means 1
2 is shown. 11 is at the two-dot chain line position 1 during normal winding.
This button is located in the pressed position 1a and projects to the solid line position 11 when the thread splicing is not successful even after a predetermined number of thread splicing operations.If the button 11 in the protruding position is forcibly pushed in, the thread will be spliced again. The relay operation is started. 13 is a button switch for starting the drum.

Note that the yarn splicing impossible display button 11 has a light reflecting surface 18 on the outer periphery of the button that is yellow so that it can be detected by an optical sensor 15, which will be described later.

An auxiliary button 19 is provided above the yarn splicing impossible display button (hereinafter referred to as the yellow button) for displaying whether or not the stopped unit can perform automatic yarn splicing again.

The auxiliary button 19 is slidably attached to the pin 20, and is positioned in two positions: a protruding position shown in the third figure and a pushed-in position. That is, when the auxiliary button 19 is protruded, the yellow button 11
An auxiliary button 19 is located above the yellow button to prevent a yellow button from being detected by a truck-side sensor, which will be described later. At the position where the auxiliary button 19 is pushed in, the truck-side sensor can detect the yellow button. Therefore, the outer circumferential surface of the auxiliary button 19 has a color such as black, and is less reflective than the yellow button 11. It is said to be a color with an extremely low rate. Of course, the buttons 11 and 19 above
It doesn't matter if the color is reversed.

Incidentally, the positioning of the auxiliary button 19 on the pin 20 at two positions is performed by a known means, for example, using a spring-loaded ball and a groove that can engage with the ball.

Further, a metal member 22 is fixed to the end surface 21 of the auxiliary button 19 so that it can be attracted to an electromagnet of an arm, which will be described later.

The yellow button automatic processing device 30 provided on the work cart will be explained with reference to FIGS. 5 and 6. The external processing device 30 includes a first sensor 15 that detects a stopped winding unit, a yarn splicing command arm means 16 that forcibly starts yarn splicing by pressing a yellow button, and a second sensor 31 for detecting the yarn being pulled out from the package 9, a beater device 32 for ensuring yarn pulling out from the package 9, and the yarn splicing command arm 17.
It is provided with an electromagnetic magnet 33 which is energized and attracts the auxiliary button when there is no yarn end on the package side, and a drive mechanism 34 for each of the above-mentioned operating members.

The yarn splicing device command arm 17 is pivotally supported by a fixed shaft 36 of a support frame 35 fixed to the work cart 3, and at the lower end of the arm 17 there is a pressing piece 37 for pushing the yellow button, and an electromagnetic electromagnetic force that attracts the auxiliary button 19. A magnet 33 is attached.

Of the levers 38 and 39 integral with the arm 17, the lever 38 is connected to a rod 41 driven by a solenoid 40, and the other lever 39 supports a cam follower 43 that abuts a cam plate 42.

The second sensor 31 that detects the pull-out of the package side yarn includes a feeler 46 at the end of an arm 45 that can pivot around a fixed shaft 44, and a proximity switch 47 that is turned on and off depending on the amount of movement of the feeler 46. The arm 45 has an iron piece 48 for turning on/off the proximity switch 47, and a cam plate 4.
A cam follower 50 is provided which abuts on the cam follower 9 . The feeler 46 is a substantially L-shaped piece fixed to the arm 45 as shown in FIG. 6, and at the time of detection, the yarn Y1 is guided toward the yarn splicing device (10 in FIG. 1) by the package 9 and the suction mouth 51c. move to a position where it acts. If yarn Y1 is present, feeler 46 cannot move further across the yarn path, so iron piece 48 will only move to the inactive position with proximity switch 47, and switch 47 will not be turned on. On the other hand, if there is no thread Y5, the feeler 46 will move a large amount, and the iron piece 46a will move closer to the proximity switch 4.
7 and turns on the switch 47.

In addition, the beater device 32 for making it easier to take out the yarn end of the package cage has a contact piece 53 with the yarn layer attached to an arm 52 that is rotatable around a fixed shaft 56.
and a cam follower 55 that abuts against the cam plate 54. When the package 9 is reversed, the contact piece 53
It comes into contact with the surface of the thread layer and serves to separate the thread end from the thread layer and cause it to be sucked into the suction mouth 51a. Rubber material, synthetic resin material, metal material, etc. can be applied to almost the entire area of the generatrix of the package. It has a width to cross.

In the case of this embodiment, such a machine for removing the cause of yarn splicing failure is effective when the yarn end is strongly entangled with the surface of the yarn layer of the package, or when the tip of the yarn end is wedged into the yarn layer. . On the other hand, it is also possible to add an effective mechanism for pulling out a so-called end-face-falling package in which, for example, a thread that has fallen from the end face of the package is wound around the end of the winding tube.

In FIG. 6, 15 is a reflective phototube sensor for yellow button detection, and 57 is a suction mouse 51c.
This sensor is a phototube sensor similar to sensor 15 and detects the rotational movement of the sensor.

A motor 58 is driven by the ON signal from the sensor 57, and rotates the camshaft 59 via a belt 61 that is placed around a pulley 60 of the camshaft 59.

Note that 62 is a sensor for detecting one revolution of the camshaft 59, which detects the iron piece 63 fixed to the pulley 60.

The operation of the device as described above will be explained next.

In FIG. 5, when the first sensor 15 on the truck side detects the winding unit 2 which has stopped winding due to the protruding yellow button 11, the driving motor on the upper part of the truck 3 immediately decelerates and the second winding unit 2 stops winding. When a limit switch (not shown) detects that the recess 66 of the positioning plate 64 shown in the figure has fitted into the projection 65 of the unit, the solenoid 40 shown in FIG. 5 is turned on.

When the solenoid 40 is turned on, the rod 41 is pulled up, the yarn splicing command arm 17 turns counterclockwise from the standby position, and the yellow button 11 from which the pressing piece 37 protrudes is pushed. Along with this pushing,
The drive mechanism of the yarn splicing device inside the unit is turned on and the yarn splicing operation is started. That is, when the suction mouse that pulls out the yarn end on the side of the package cage 9 rotates clockwise from the standby position 51c to the working position 51a, when the sensor 57 shown in FIG. 6 detects the movement of the suction mouse, the yellow button processing device Drive motor 58 is turned on.

That is, the camshaft 59 is driven by the motor 58.
rotates, and the beater device 3 is rotated by each cam plate 42, 49, 54 and cam follower 43, 50, 55.
2. Yarn detection feeler 46, yarn splicing command arm 1
7 comes into play at the right time. First, the yarn layer contact piece 53 of the beater device moves toward the package cage.
3a, when the package cage is reversed as shown in FIG.
a turns in the opposite direction, and the thread moves into the package cage 9 as shown in Figure 5.
The feeler 46 moves forward and detects the presence or absence of the yarn at the moment when it takes a predetermined yarn path Y1 between the yarn splicing device and the yarn splicing device. If the yarn Y1 exists, the electromagnetic magnet 33 will not be excited, and therefore the auxiliary button 19 will not protrude when the yarn splicing command arm 17 returns.

On the other hand, when the feeler 46 detects the absence of yarn, that is, when the proximity switch 47 is turned on, the electromagnet 3
3 is excited, and as the arm 17 returns, the auxiliary button 19 is attracted and protrudes.

The above operation is schematically shown in FIG. yellow button 1
1. When normal winding is performed with both auxiliary buttons 19 sunk, and after thread breakage occurs, the yellow button 11a protrudes when thread splicing is not successful even after a predetermined number of thread splicing operations. . Next, while the trolley is running, it detects the yellow button 11a, stops at the unit position, operates the splicing command arm 17, pushes the yellow button 11a, and forcibly splices the yarn 11c. Next, when the thread on the package cage side is pulled out, the auxiliary button 19 maintains the pushed-in position 19a, and if the thread splicing is successful, the winding continues with the yellow button 11d and the auxiliary button 19a both pushed in.

On the other hand, if the package side yarn is not pulled out, the auxiliary button 19b protrudes as the yarn splicing command arm returns.

Therefore, even if the yarn splicing operation is completed, the yarn splicing is not successful and the yellow button 11c protrudes again.
e. At this time, the yarn splicing fails due to some reason on the package cage side, and the operator needs to make some adjustments.Therefore, even if the trolley arrives in this state, the yellow button 11e will not work as the auxiliary button 19b.
The trolley passes by because it is not obstructed and detected. Which buttons 11e and 19 are pressed by the operator?
If a unit b is also found protruding, the package side is reworked and buttons 11e and 19b are pressed together to return to the original states 11 and 19.

On the other hand, if there is thread on the package cage side, the auxiliary button is still pressed in (19a), and if the thread splicing fails even though the thread on the package cage side has been pulled out, this means that the bobbin is still being fed on the yarn feeding side. Therefore, in this case, the auxiliary button is in the pushed-in position, and the yellow button protrudes 11a due to yarn splicing failure, so the cart finishes work on other units and reaches the above unit again. There is a high probability that a new bobbin will have been supplied by the time it is finished. Therefore, if the forced splicing is performed again by the action of the splicing command arm, the probability of a successful splicing increases.

Therefore, when the sensor for detecting the presence or absence of thread on the package cage side detects the presence of thread, the auxiliary button 19 does not protrude, and when it detects that there is no thread, the auxiliary button 19 protrudes and the trolley is moved again to the unit. When the machine reaches the position, it stops only those units that have a possibility of successfully splicing the yarn, and commands the yarn splicing operation.
It passes through units where there is little chance of success in splicing without stopping, thereby blocking unnecessary splicing operations.

〔Effect of the invention〕

As described above, in the present invention, a work cart that causes a stopped winding unit to perform a yarn splicing operation,
Since a mechanism for removing the cause of yarn splicing failure is provided, the probability of successful yarn splicing is higher than when simply splicing yarns, and the operating efficiency of the winder can be improved.

[Brief explanation of drawings]

FIG. 1 is a side view showing an example of a winder to which the present invention is applied, FIG. 2 is a front view of the winder, FIG. 3 is a side view showing the relationship between the yellow button and the auxiliary button, and FIG. FIG. 5 is a side view of the yellow button processing device, FIG. 6 is a front view thereof, and FIG. 7 is a schematic diagram showing the operating state of the yellow button and the auxiliary button. 1... automatic winder, 2... winding unit, 3... trolley, 32... beater device.

Claims (1)

[Claims] If the winder is equipped with an automatic yarn splicing device and yarn splicing is not successful even after a set number of yarn splicing operations, the yarn splicing failure display means of the winding unit is displayed to indicate that yarn splicing is not possible. Yarn splicing command means detects the yarn splicing impossible display means on the winding unit side and instructs the unit to start splicing operation to a working vehicle moving along the winding unit. 1. A work cart for an automatic winder, characterized in that it is provided with: and a beater device for assisting yarn pulling out from a package, which operates in conjunction with the operation of the yarn splicing command means.