JPH10279191A - Remaining thread treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a bobbin grip member and a bobbin from being scratched by a cutter by advancing and retracting the cutter which cuts in a remaining thread wound around the bobbin in the direction of the bobbin nipped by grippers and changing an action position and a stand-by position freely. SOLUTION: When an upper sensor s1 detects a position of a lower end part of a bobbin b nipped by a pair of grippers 17a, 17b, a cylinder for operating cutter c1 is operated by the signal, and a piston rod c2 advances. A cutter c3 which stands by in a rear part advances in the direction of the bobbin b, and a remaining thread y wound around the bobbin b is cut in to loosen the tightening of the bobbin b by the remaining thread y. At this time, the operation of the cylinder for operating cutter c1 is stopped to form a certain clearance between a blade tip c3' of the cutter c3 and a surface of the bobbin b. Consequently, it is possible to prevent a bobbin grip cylinder 7 from being scratched by the blade tip c3'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a residual yarn processing device for removing residual yarn wound around a bobbin.

[0002]

2. Description of the Related Art Conventionally, a lower end of a bobbin having a residual yarn is
While sandwiching with a pair of grippers having a semicircular concave portion, a cutter arranged in one gripper is cut into the remaining yarn, and a cut is made in the remaining yarn tightly tightened on the bobbin to remove the remaining yarn. After being loosened, the bobbin is moved in the axial direction of the bobbin with respect to the gripper, or the gripper is moved in the axial direction of the bobbin to remove the residual yarn from the bobbin. Yarn handling devices are known.

[0003]

The problem to be solved by the present invention will be described with reference to FIGS. 11 and 12 which are enlarged front views of a main part of a conventional residual yarn treating device. In FIGS. 11 and 12, for convenience of explanation,
The remaining thread wrapped around the bobbin is omitted.

[0004] In a conventional residual yarn processing device in which a cutter c 'is disposed on one of a pair of grippers g disposed opposite to each other, the gripper g clamps the lower end of a bobbin b having residual yarn. , The cutter c ′ is the bobbin b
A constant gap d is formed between the cutting edge c1 'of the cutter c' and the surface of the bobbin b so as not to damage the bobbin b by contacting the surface of the bobbin b.

[0005] As shown in Fig. 11, in the case of a tapered bobbin b having a constant inclination from the lower end to the top, the lower end of the bobbin b is connected to the gripper g disposed opposite to the upper end. (Position X in FIG. 11), the cutter c 'is cut into the remaining yarn, and a cut is made in the remaining yarn tightly tightened with respect to the bobbin b to loosen the remaining yarn. Thereafter, the bobbin b gripped by the bobbin gripping member h having a substantially constant outer diameter is lowered as the bobbin gripping member h is lowered. Even if the opposing grippers g approach each other (position Y in FIG. 11), the bobbin Since the taper of b is constant, the gap d formed between the cutting edge c1 ′ of the cutter c ′ disposed on one gripper g and the surface of the bobbin b
Is always constant. Therefore, the cutter c ′ does not come into contact with the bobbin b and the bobbin b is not damaged.
However, when the bobbin gripping member h further descends and the gripper g clamps the vicinity of the top of the bobbin b (FIG. 1).
1), the bobbin gripping member h does not have the same taper as the taper of the bobbin b.
Of the cutter c ', the outer diameter of the cutter c' is substantially constant.
However, there is a problem that the bobbin gripping member h is damaged by contacting the bobbin gripping member h.

Further, as shown in FIG. 12, in the case of a bobbin b having a two-stage taper comprising a lower part b1 having a large taper and an upper part b2 having a small taper,
At the time when the gripper g clamps the lower end of the bobbin b having the remaining yarn (position X in FIG. 12), the cutter c ′
A certain distance is provided between the cutting edge c1 'of the cutter c' and the surface of the lower tapered portion b1 of the bobbin b so as to abut the surface of the lower tapered portion b1 of the bobbin b so as not to damage the bobbin b. The gap d is formed. From this state, the bobbin gripping member h is lowered, and the gripper g is moved to the lower portion b of the bobbin b where the taper is large.
1 (position Y in FIG. 12), the taper of the upper part b2 of the bobbin b is smaller than the taper of the lower part b1, so that the cutting edge c1 'of the cutter c' is moved to the upper part b2 of the bobbin b. There is a problem that the bobbin b is damaged by contacting the surface of the bobbin. Further, similarly to the position Z in FIG. 11, when the gripper g sandwiches the vicinity of the top of the bobbin b, the cutting edge c1 ′ of the cutter c ′ comes into contact with the bobbin gripping member h and damages the bobbin gripping member h. There was a problem. In addition, the smaller the angle formed by the axis of the bobbin b and the conical surface of the surface of the bobbin b is referred to as a lower portion b1 having a "larger taper", and the smaller angle is defined as an upper portion having a "small taper" It is referred to as a part b2.

An object of the present invention is to solve the problems of the above-described conventional residual yarn processing apparatus.

[0008]

According to the present invention, in order to achieve the above-mentioned object, first, a cutter for cutting a remaining thread wound around a bobbin is provided in a direction of a bobbin held by a gripper. , So that the position can be freely changed between the operation position and the standby position,
Secondly, the cutter moves in the bobbin direction by a signal from a sensor arranged close to the bobbin moving cylinder. Third, the cutter moves close to the bobbin moving cylinder. The position of the sensor that is arranged in a position can be adjusted.

FIG. 1 is a schematic side view including a partial cross section of the residual yarn processing device of the present invention, FIG. 2 is a front view of a gripper member of the residual yarn processing device of the present invention, FIG. FIG. 3 is a plan view of a gripper or the like of the processing device, and FIG. 3 is a schematic front view showing a process of removing a residual yarn of a tapered bobbin having a constant inclination from a lower end to a top by the residual yarn processing device of the present invention. The embodiment of the present invention will be described with reference to FIGS. 4 to 6 and FIGS. 7 to 10 which are schematic front views showing a process of removing the residual yarn of the two-stage tapered bobbin by the residual yarn treatment device of the present invention. However, the present invention is not limited to the present embodiment at all without departing from the spirit of the present invention.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral b denotes a bobbin having a residual yarn y which is placed on a tray t and transported by a known transport means such as a belt conveyor along a traveling path v provided on an appropriate frame. . Reference numeral 1 denotes a machine base of the residual yarn treatment device, and a bobbin moving cylinder 3 that is vertically arranged is provided on a frame 2 attached to the machine base 1.

H is a bobbin gripping member disposed at the tip of the piston rod 3 'of the bobbin moving cylinder 3. The bobbin gripping member H is provided at the tip with a top hole b1 of the bobbin b.
Guide 4 having a conical tip that can be inserted into
And a chucker 6 that is inserted into a ceiling hole b1 of the bobbin b disposed above the introduction guide 4 and then expanded through a pipe 5 by compressed air supplied from a compressed air supply source (not shown). have. The chucker 6 is formed of an elastic member such as rubber. Note that the chucker 6 may have a structure that sandwiches the head of the bobbin b from the outside. It is preferable that the chucker 6 be configured to contract naturally by removing the compressed air. The pipe 5 that supplies the compressed air to the chucker 6 is a cylindrical bobbin that constitutes the bobbin gripping member H. It is arranged in the holding cylinder 7. The outer diameter of the bobbin gripping cylinder 7 is formed to be larger than the outer diameters of the chuck 6 and the introduction guide 4, and is equal to the outer diameter of the top part of the bobbin b. When the chucker 6 is inserted into the ceiling hole b1 of the bobbin 4, the bobbin gripping cylinder 7 is
It is configured to press the upper end of the.

G is a gripper member to be described later.
Is an air ejecting member attached to the gripper member G, and the nozzle 8 'of the ejection pipe 8 is directed to the upper surface of a gripper of the gripper member G described later. S is a suction member disposed on the opposite side of the air ejection member N with the gripper member G interposed therebetween. The suction port 9 'of the suction pipe 9 of the suction member S is connected to the nozzle 8' of the air ejection member N. They are arranged on the sides of the gripper so as to face each other. A shutter 10 is provided at a predetermined position of the suction pipe 9, and the shutter 10 is configured to be opened and closed by a suitable actuator 11 such as a cylinder.

Next, mainly referring to FIGS. 2 and 3,
The gripper member G will be described.

Reference numerals 12a and 12b denote a pair of guide rails attached to a suitable frame 13 disposed on the machine base 1 at predetermined intervals, and the guide rails 12a and 12b
Are formed with horizontal concave grooves 12a 'and 12b', respectively. Reference numerals 14a and 14b denote sliding blocks movable in the horizontal direction along the guide rails 12a and 12b, respectively. In FIG. 2, the sliding blocks 14a and 14b located on the left and right have the same structure. Therefore, the sliding block 14a located on the left side will be described below. For the sake of convenience, the constituent members of the sliding block 14a located on the left side are given an alphabetical letter a after the arithmetic numerals, and the constituent members of the sliding block 14b located on the right side are calculated. The letter "b" is added after the service number.

Reference numeral 15a denotes a pair of guide rollers attached to the slide block 14a, which are fitted in the concave grooves 12a 'of the guide rail 12a. Reference numeral 16a denotes an engagement piece having a concave portion 16a 'into which a roller attached to the tip of an operation lever described later is fitted, and reference numeral 17a denotes a plate-like member attached to the lower end of the sliding block 14a. Is a gripper. Semi-circular recesses 18a, 18b are formed along the peripheral surface of the bobbin b on the side surface of the gripper 17a facing the pair of opposed grippers 17a, 17b.

Reference numeral 19 denotes a gripper operating cylinder vertically disposed on the frame 13, and a tip of a piston rod 19 'of the gripper operating cylinder 19 has one corner of a connecting plate 20 having a substantially triangular front shape. It is pivotally attached to the part 21. 22 is a frame 1 via an appropriate bearing.
3, the other corner 23 of the connecting plate 20 is attached to the horizontal rotating shaft 22, and the horizontal rotating shaft 22 has an engaging piece An upper end of an operation lever 24 having a roller 24 'fitted into the recess 16b' of the 16b is mounted.

Reference numeral 25 denotes a horizontal rotation shaft similar to the horizontal rotation shaft 22 which is arranged in parallel with the horizontal rotation shaft 22 at a predetermined interval, and is disposed on the frame 13 via an appropriate bearing. ing. Reference numeral 26 denotes an operating lever having a roller 26 'at the tip thereof which is fitted into the concave portion 16a' of the engaging piece 16a.
It is attached to. Reference numeral 27 denotes a link having one end attached to the horizontal rotation shaft 25, and a link 29 is pivotally connected to the other end of the link 27 and the remaining corner 28 of the connection plate 20.

Next, the operation of the gripper member G will be described with reference to FIG.

As shown in FIG. 2, grippers 17 attached to opposing sliding blocks 14a, 14b
When the piston rod 19 'is moved upward by operating the gripper operating cylinder 19 from a state in which the a and 17b are separated from each other, the connecting plate 20 is turned around the horizontal rotating shaft 22 in FIG. , Rotate clockwise. When the connecting plate 20 rotates clockwise, the horizontal rotating shaft 22 to which the connecting plate 20 is attached also rotates clockwise,
Therefore, the operating lever 2 attached to the horizontal rotation shaft 22
4 also rotates clockwise, so that the operating lever 2
The sliding block 14b having the engagement piece 16b with which the fourth roller 24 'is fitted moves leftward in FIG. 2 along the guide rail 12b.

When the connecting plate 20 is rotated clockwise by the upward movement of the piston rod 19 ', the link 29, one end of which is pivotally connected to the connecting plate 20, is pulled rightward in FIG. Therefore, the link 27 rotates counterclockwise in FIG. 2 around the horizontal rotation shaft 25. When the link 27 rotates counterclockwise, the link 27
Is also rotated in the counterclockwise direction, and accordingly, the operating lever 26 attached to the horizontal rotating shaft 25 is also rotated in the counterclockwise direction. Piece 16a with which the roller 26 'is fitted
Is moved along the guide rail 12a to the right in FIG.

As described above, by operating the gripper operating cylinder 19 to move the piston rod 19 'upward, the pair of sliding blocks 14a, 14b are moved along the guide rails 12a, 12b.
Since it moves in the approaching direction, the sliding blocks 14a, 1
The grippers 17a, 17b arranged on the 4b also approach each other, introduce the bobbin b into the recesses 18a, 18b, and, by the pair of grippers 17a, 17b,
Hold bobbin b.

Next, a description will be given of a cutter member C which cuts the remaining yarn y in order to loosen the remaining yarn y which is wound around the bobbin b and is tightly fixed to the bobbin b.

One sliding block 14b of the sliding blocks 14a and 14b which are disposed oppositely and has the grippers 17a and 17b attached thereto (in this embodiment, FIG.
In the lower part of the sliding block 14b) located on the right side, a horizontal cutter operating cylinder c1 is incorporated. A fan-shaped cutter c3 having a cutting edge c3 'at the tip is attached to the piston rod c2 of the cutter operating cylinder c1. The above cutter member C is
Cutting edge c of cutter c3 attached to piston rod c2
3 ′ is located near the deepest portion of the semicircular recess 18b of the gripper 17b, and the cutter c3 attached to the piston rod c2 moves movably in parallel with the moving direction of the gripper 17b. It is arranged.
Therefore, the piston rod c2 can be advanced or retracted by appropriately operating the cutter operating cylinder c1, and the cutter c3 attached to the piston rod c2 can be moved to the grippers 17a, 17b.
, So that the bobbin b can approach or separate from the bobbin b.

Next, mainly with reference to FIGS. 4 to 6, a residual yarn having the above-described configuration for removing the residual yarn y wound on the tapered bobbin b having a constant inclination from the lower end to the top is shown. The operation of the yarn processing device will be described.

First, a remaining yarn y conveyed along the traveling path v by a known stopper (not shown).
The tray t on which the bobbin b is wound is placed on the bobbin b and the piston rod 3 ′ of the bobbin moving cylinder 3.
Is stopped so as to be located below the bobbin gripping member H disposed at the tip of the.

Next, the bobbin moving cylinder 3 as moving means for moving the bobbin gripping member H is appropriately operated to lower the bobbin gripping member H, and the introduction guide 4 and the chucker 6 are moved to the top of the bobbin b. The chucker 6 is inserted into the hole b1 and then the chucker 6 is expanded by the compressed air supplied through the pipe 5, and the bobbin b is gripped by the chucker 6.

Next, the bobbin moving cylinder 3 is appropriately operated to raise the bobbin gripping member H, pull out the bobbin b from the peg erected on the tray t, and move the lower end of the bobbin b away. The bobbin gripping member H is positioned between the pair of grippers 17a and 17b in the state.
To rise.

Next, the gripper operating cylinder 19
Is operated to move the piston rod 19 'upward, so that the piston rod 19' moves along the guide rails 12a and 12b.
The pair of sliding blocks 14a and 14b are moved in a direction approaching each other. Such a sliding block 14a,
By the movement of 14b, the grippers 17a and 17b also move in a direction approaching each other, and the lower end of the bobbin b is introduced into the recesses 18a and 18b, and the lower end of the bobbin b is moved by the pair of grippers 17a and 17b. Pinch. A piston attached to a piston rod 19 'of a cylinder 19 for gripper operation so that the pair of grippers 17a and 17b holding the lower end of the bobbin b is always urged in the direction of holding the bobbin b. Compressed air is supplied to the space below.

A magnet m is attached to the piston 3 "attached to the piston rod 3 'of the bobbin moving cylinder 3. The magnet m is attached to the piston 3" close to the bobbin moving cylinder 3. An upper sensor s1 and a lower sensor s2 responsive to the attached magnet m are provided.

The bobbin moving cylinder 3 is appropriately operated to raise the bobbin gripping member H gripping the bobbin b so that the lower end of the bobbin b is positioned between the pair of grippers 17a and 17b in a separated state. The lower end of the bobbin b is sandwiched by the pair of grippers 17a and 17b by disposing the gripper operating cylinder 19 as appropriate. The upper sensor s1 is configured to detect a lower end of the bobbin b sandwiched between the pair of grippers 17a and 17b. As described above, when the position of the lower end of the bobbin b sandwiched between the pair of grippers 17a and 17b is detected by the upper sensor s1, a signal from the upper sensor s1 causes the signal to be transmitted through the central control unit (not shown). By operating the cutter operating cylinder c1 to advance the piston rod c2, as shown in FIG.
a, 17b, is advanced in the direction of the bobbin b, and as shown in FIG. 5, a cut is made in the remaining yarn y wound around the bobbin b, and the bobbin b with the remaining yarn y is cut.
Loosen the tightening. At the operation position of the cutter c3, a cut is made in the remaining thread y wound on the bobbin b, and when the tightening of the bobbin b by the remaining thread y is loosened, the operation of the cutter operating cylinder c1 is stopped. A certain gap is formed between the cutting edge c3 'of the cutter c3 and the surface of the lower end of the bobbin b.

With the pair of grippers 17a and 17b,
After the cutter c3 cuts the remaining yarn y wound around the bobbin b whose lower end is clamped, the bobbin moves while the lower end of the bobbin b is clamped by the pair of grippers 17a and 17b. When the bobbin gripping member H is lowered by appropriately operating the cylinder 3 for use, the pair of grippers 17a and 17b
Then, the remaining yarn y wound around the bobbin b is caught, and the remaining yarn y is peeled off from the bobbin b. The bobbin b from which the remaining yarn y has been peeled is directly lowered as the bobbin gripping member H is lowered. As described above, since the pair of grippers 17a and 17b holding the lower end are always urged in the direction of holding the bobbin b, the pair of grippers 17a and 17b Even if the diameter of the bobbin b being clamped is small, the pair of grippers 17a and 17b approach each other and always clamp the bobbin b between the pair of grippers 17a and 17b. A constant gap is maintained between c3 'and the surface of bobbin b.

As shown in FIG. 5, when the remaining yarn y 'is wound around the upper portion of the bobbin b, the bobbin gripping member H descends and the gap between the bobbin b and the surface of the bobbin b is constant. By the cutting edge c3 'of the cutter c3 forming
A cut is made in the residual yarn y ', and the bobbin b is formed by the residual yarn y'.
Of the bobbin b, the remaining yarn y 'wound around the bobbin b is caught by the pair of grippers 17a and 17b sandwiching the bobbin b.
Will be stripped from

Further, the bobbin moving cylinder 3 is operated to lower the bobbin gripping member H. The cutting edge c3 'of the cutter c3 disposed on one gripper 17b is
When the lower sensor s2 detects that the upper end of the bobbin b has been reached by the position of the magnet m attached to the piston 3 ″ of the bobbin moving cylinder 3, it is indicated by a signal from the lower sensor s2. By operating the cylinder c1 for operating the cutter and retracting the piston rod c2 through the central control unit which is not performed,
By moving the cutter c3 away from the bobbin b, as shown in FIG. 6, the cutting edge c3 'of the cutter c3 comes into contact with the cylindrical bobbin gripping cylinder 7, so that the bobbin gripping cylinder 7 is not damaged.

Thereafter, the bobbin moving cylinder 3
Is operated to lower the bobbin gripping member H, and the bobbin b from which the remaining yarns y and y 'have been removed is inserted again into the pegs erected on the tray t. After the bobbin b from which the residual yarns y and y 'have been removed is inserted into the peg erected on the tray t, the supply of the compressed air to the chucker 6 is stopped, and the chucker 6 is naturally contracted. By operating the moving cylinder 3 to raise the bobbin gripping member H, the contracted chuck 6 is pulled out from the top hole b1 of the bobbin b, and the bobbin gripping member H is returned to the upper standby position.

Next, mainly referring to FIG. 7 to FIG.
The operation of the residual yarn processing device having the above-described configuration for removing the residual yarn y wound on the two-stage tapered bobbin b including the lower portion b1 having a large taper and the upper portion b2 having a small taper will be described. The lower part b1 having a large taper and the upper part b having a small taper
Bobbin gripping member H and gripper member G other than the operation of the cylinder c1 for operating the cutter due to the two-stage taper 2
Is the same as in the case of removing the residual yarn y wound on the tapered bobbin b having a constant inclination from the lower end to the top as described above, and thus the description thereof is omitted.

As in the embodiment described above, the upper sensor s
1 is configured to detect the lower end of the bobbin b sandwiched between the pair of grippers 17a and 17b.
As described above, the position of the lower end of the bobbin b sandwiched by the pair of grippers 17a and 17b is determined by the upper sensor s1.
Is detected, a signal from the upper sensor s1 is operated via a central control unit (not shown) to actuate the cutter operating cylinder c1 to advance the piston rod c2, as shown in FIG. As shown in FIG. 8, the cutter c3 at the rear standby position is advanced in the direction of the bobbin b sandwiched by the pair of grippers 17a and 17b, and as shown in FIG. Residual thread y wrapped around part b1
And loosen the tightening of the bobbin b with the remaining yarn y. At the operation position of the cutter c3, a cut is made in the remaining thread y wound around the lower portion b1 of the bobbin b with a large taper, and when the tightening of the bobbin b by the remaining thread y is loosened, the cutter operating cylinder c
1 is stopped, and a constant gap is formed between the cutting edge c3 'of the cutter c3 and the surface of the lower portion b1 of the bobbin b having a large taper.

With a pair of grippers 17a and 17b,
After the cutter c3 cuts the remaining yarn y wound around the bobbin b whose lower end is pinched, the bobbin b is moved while the lower end of the bobbin b is pinched by the pair of grippers 17a and 17b. Cylinder 3 as appropriate
When the bobbin holding member H is actuated and lowered, the remaining yarn wound around the lower tapered portion b1 of the bobbin b on the pair of grippers 17a and 17b sandwiching the lower tapered portion b1 of the bobbin b. y is hooked, and the remaining yarn y is peeled off from the bobbin b. The bobbin b from which the remaining yarn y has been peeled is directly lowered as the bobbin gripping member H is lowered. As described above, the pair of grippers 17a and 17b that hold the lower end of the bobbin b are always urged in the direction of holding the bobbin b. Even when the diameter of the lower portion b1 of the bobbin b, which has a large taper, which is held by the bobbin 17a and 17b, becomes small, the pair of grippers 17a and 17b approach each other and always hold the bobbin b between the pair of grippers 17a and 17b. Therefore, a constant gap is maintained between the cutting edge c3 ′ of the cutter c3 and the surface of the bobbin b.

Further, the bobbin gripping member H is lowered by operating the bobbin moving cylinder 3, and the cutting edge c3 'of the cutter c3 disposed on one gripper 17b is
The arrival at the upper end of the lower part b1 of the bobbin b having a large taper is indicated by the piston 3 ″ of the cylinder 3 for bobbin movement.
When the intermediate sensor s3 located between the upper sensor s1 and the lower sensor s2 detects the position of the magnet m attached to the central control unit, a central control unit (not shown) is activated by a signal from the intermediate sensor s3. By operating the cutter operating cylinder c1, the piston rod c2 is retracted, and the cutting edge c3 ′ of the cutter c3 described above.
Between the lower end of the bobbin b or the lower tapered portion b1 of the bobbin b
By forming a gap similar to the gap formed between the cutter c3 and the surface of the cutter c3, as shown in FIG.
The cutting edge c3 ′ of the bobbin b is configured so as to abut the tapered upper portion b2 of the bobbin b so as not to damage the tapered upper portion b2 of the bobbin b.

Thereafter, the bobbin moving cylinder 3
To lower the bobbin gripping member H, so that the bobbin b
The bobbin b from which the residual yarn y wound around the lower part b1 having a large taper is removed is lowered, but the upper part b2 of the bobbin b has a constant taper.
Cutting edge c3 'and the upper part b of the bobbin b having a small taper
A constant gap is maintained between the two surfaces. Then, as shown in FIG. 9, the upper part b of the bobbin b
When the remaining yarn y 'is wound around 2, the cutter c3 cuts the remaining yarn y' to loosen the remaining yarn y ', and the pair of grippers 17a and 17b sandwich the bobbin b. The remaining yarn y 'wound around the bobbin b is caught, and the remaining yarn y' is peeled off from the upper portion b2 of the bobbin b having a small taper.

Further, the bobbin moving cylinder 3 is actuated to lower the bobbin gripping member H. The cutting edge c3 'of the cutter c3 provided on one gripper 17b is
When the lower sensor s2 detects that the upper end of the bobbin b has been reached by the position of the magnet m attached to the piston 3 ″ of the bobbin moving cylinder 3, the lower sensor s2, as in the above-described embodiment, In response to a signal from the sensor s2, the cutter operating cylinder c1 is operated via a central control unit (not shown), and the piston rod c2 is operated.
10, the cutting edge c3 'of the cutter c3 abuts on the cylindrical bobbin gripping cylinder 7, so as not to damage the bobbin gripping cylinder 7, as shown in FIG. Thereafter, the bobbin moving member 3 is further operated to lower the bobbin gripping member H, and the bobbin b from which the residual yarn y has been removed is again inserted into the peg erected on the tray t.

As described above, the remaining yarns y and y 'removed from the tapered bobbin b or the two-step tapered bobbin b having a constant inclination from the lower end to the top are mounted on the upper surfaces of the grippers 17a and 17b. During the operation of removing the residual yarn by the grippers 17a and 17b or after the operation of removing the residual yarn, the actuator 11 is actuated to open the shutter 10 to generate a suction airflow at the suction port 9 'of the suction member S. , Nozzle 8 'of air injection member N
To blow off the remaining yarns y and y ′ placed on the upper surfaces of the grippers 17a and 17b by the air blown out from the nozzle 8 ′, and the suction port of the suction member S disposed opposite to the suction line. Inhale from 9 '. The remaining yarns y and y ′ sucked into the suction pipe 9 pass through the shutter 10 and
It is stored in a residual yarn storage box (not shown) or the like. After the end of the remaining yarn processing, the shutter 10 is closed and the operation of the air injection member N is stopped. As described above, the remaining yarn processing operation of the remaining yarn processing device is completed.

In the above-described embodiment, an example is shown in which the suction member S and the air ejection member N are disposed with the gripper member G interposed therebetween. , The suction member S alone, the grippers 17a, 1
The residual yarn y placed on the upper surface of the air jetting member 7b can be removed by suction.
Can be omitted.

The mounting position of the above-mentioned upper sensor s1, lower sensor s2 or intermediate sensor s3 is as follows.
Length and thickness of bobbin b or bobbin b with two-stage taper
Depending on the length and thickness of the lower part b1 and the upper part b2 of
Since it is configured so that it can be adjusted as appropriate, it is possible to remove residual yarns wound around bobbins of various shapes. Also,
The embodiment has been described using an example in which the magnet m whose position is detected by the upper sensor s1, the lower sensor s2, or the intermediate sensor s3 is attached to the piston 3 ″ of the bobbin moving cylinder 3. Can be attached to the bobbin gripping cylinder 7, and various types of position detection sensors can be used as the sensors.

[0044]

Since the present invention is configured as described above, the following effects can be obtained.

Since the cutter for cutting the remaining thread wound on the bobbin can be advanced and retracted in the direction of the bobbin held by the gripper, the cutter does not damage the bobbin gripping member or the bobbin.

Since the cutter is advanced or retracted in the bobbin direction by a signal from a sensor arranged close to the bobbin moving cylinder, the removal of the remaining yarn wound on the bobbin can be automated.

Since the position of the sensor arranged close to the bobbin moving cylinder is adjustable, the residual yarn removing device of the present invention can be applied to various bobbins.

[Brief description of the drawings]

FIG. 1 is a schematic side view including a partial cross section of a residual yarn processing device of the present invention.

FIG. 2 is a front view of a gripper member of the residual yarn processing device of the present invention.

FIG. 3 is a plan view of a gripper and the like of the residual yarn processing device of the present invention.

FIG. 4 is a schematic front view showing a process of removing a residual yarn of a tapered bobbin having a constant inclination from a lower end to a top by the residual yarn processing device of the present invention.

FIG. 5 is a schematic front view showing a process of removing the residual yarn of a tapered bobbin having a constant inclination from the lower end to the top by using the residual yarn processing device of the present invention similar to FIG.

FIG. 6 is a schematic front view showing a process of removing the residual yarn of a tapered bobbin having a constant inclination from the lower end to the top using the residual yarn processing device of the present invention, similar to FIG.

FIG. 7 is a schematic front view showing a process of removing a residual yarn of a bobbin with a two-stage taper by the residual yarn processing device of the present invention.

FIG. 8 is a schematic front view showing a process of removing the residual yarn of the two-stage tapered bobbin by the residual yarn treating device of the present invention similar to FIG.

FIG. 9 is a schematic front view showing a process of removing the residual yarn of the two-stage tapered bobbin by the residual yarn treating device of the present invention similar to FIG.

FIG. 10 is a schematic front view showing a process of removing a residual yarn of a two-stage tapered bobbin by using the residual yarn treating device of the present invention similar to FIG. 7;

FIG. 11 is an enlarged front view of a main part of a conventional residual yarn processing device for removing residual yarn from a tapered bobbin having a constant inclination from a lower end to a top.

FIG. 12 is an enlarged front view of a main part of a conventional residual yarn processing device for removing residual yarn from a two-stage tapered bobbin.

[Explanation of symbols]

 C: Cutter member G: Gripper member H: Bobbin gripping member N: ····· Air injection member S ··· Suction member b ··· Bobbin c1 ······ Cylinder for operating cutter c3 ... cutter s1 ... upper sensor s2 ... lower sensor s3 ... middle Sensor t ・ ・ ・ Tray y, y '・ ・ ・ ・ ・ Remaining thread 14 ・ ・ ・ ・ ・ ・ ・ ・ ・ Sliding block 17 ・ ・ ・ ・ ・ ・ ・ ・ ・... Grippers

Claims (3)

[Claims] A cutter for cutting a remaining thread wound on a bobbin is configured to be able to advance and retreat in a direction of a bobbin held by a gripper, so that a position can be freely changed between an operating position and a standby position. Characteristic residual yarn processing device. 2. The residual yarn processing device according to claim 1, wherein the cutter is advanced or retracted in the bobbin direction by a signal from a sensor arranged close to the bobbin moving cylinder. 3. The apparatus according to claim 1, wherein the position of the sensor disposed close to the bobbin moving cylinder is adjustable.