JPH0665855A - Apparatus for cutting woven cloth in cloth roll exchanger - Google Patents

Abstract

PURPOSE:To prevent the miss-cut by arranging a yarn waste removing sheet on a transfer passage of a cutter and removing the yarn waste sticking to the cutter following the cutting of a woven fabric. CONSTITUTION:A woven cloth between a full roll transferred from a woven cloth winding position to a temporary laying position based on a cloth roll exchange signal and an empty roll is cut and separated in the width direction of the woven cloth. In the process, a cutter driving motor 30 is started by a command of a control computer to travel a cutter 32 toward a sensor 34 installed at the terminal of a travel passage. Thereby, the woven cloth passing over a guide rail 29 and a nozzle pipe 36 is cut. When the cutter 32 arrives a removing sheet 37 applied to a rail cover 35, the yarn waste sticking to the cutter 32 following the cutting is removed with the sheet 37. The cutter 32 in an absent state of yarn waste is then returned to a standby position with the cutter driving motor 30 reversing by a cutter sensing signal of the sensor 34. Thereby, cutter 32 prepares for the next cloth roll exchange.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a woven cloth cutting device in a device for exchanging a completed cloth roll and an empty cloth roll.

[0002]

2. Description of the Related Art Automatic cross-roll changers of this type are disclosed in Japanese Patent Laid-Open No. 60-17957 and Japanese Utility Model Laid-Open No. 60-1771.
No. 43 publication. All of the automatic cross roll changers in both publications are installed on the side of the cross roll carrier, and when the cross roll on the loom reaches the winding completion state, the cross roll carrier receives a call and arrives at the transfer work position in front of the loom. To do. When the cross roll carrier arrives and stops at the transfer work position in front of the loom, the automatic cross roll exchange device performs a series of cross roll exchange operations, and the cross roll that has completed winding on the loom (hereinafter referred to as full roll) is transported. While being transferred to the vehicle side, an empty cross roll (hereinafter referred to as an empty roll) on the transport vehicle is transferred to the loom side. Next, the cloth cutting mechanism that constitutes the automatic cross roll changing device cuts the woven cloth between the empty roll and the full roll, the woven cloth cutting end on the loom side is wound around the empty roll, and the woven cloth on the transport vehicle side is wound. The cut end is wound into a full roll.

[0003]

In these conventional cross roll exchanging devices, the full roll transferred to the cross roll conveying vehicle side is rotated to apply tension to the woven cloth, and the cloth is cut in this tension applied state. Is done. Weaving continues while the cloth rolls are replaced. However, if the cutting of the woven fabric fails, the empty roll cannot be mounted at the woven fabric winding position on the loom, and the weaving must be stopped. One of the causes of failure in cutting the woven fabric is that lint is accumulated in the cutter guide. The woven fabric is guided by the cutter guide to the cutting action area of the cutting blade. If lint accumulates on the guide path of the cutter guide, the woven cloth cannot be cut.

It is an object of the present invention to provide a woven fabric cutting device which can surely perform the woven fabric cutting during the cross roll changing operation.

[0005]

Therefore, according to the present invention,
Cross roll exchange equipped with a cutter that moves the full roll from the fabric winding position to the full roll temporary placement position and cuts the woven fabric between the full roll and the empty roll on the full roll temporary placement position in the width direction. Targeting the apparatus, the lint removing means is arranged on the moving path of the cutter, and the lint adhering to the cutter that has reached the removal action area of the lint removing means is removed from the cutter by the lint removing means.

[0006]

When the cutter comes to the removal action area of the lint removing means along with the cloth cutting operation, the lint adhering to the cutter is removed from the cutter by the lint removing means. The removing action of the lint removing means is adhesion transfer by contact with lint, or suction, peeling by air blowing, or the like. The lint attached to the cutter is performed every time the cross roll is replaced, and the cutting performance of the cutter is not deteriorated by the lint.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. As shown in FIG. 1, 1 is a side frame of the loom, and both left and right side frames 1 of the loom
Surface roller 2 and press roller 3 installed between
Picks up woven cloth W. The woven cloth W that is taken up by the cooperation of the surface roller 2 and the press roller 3 is wound around the cloth roll 4 on the cloth winding position P ₁ . A cloth guide bar 5 is in contact with the cloth peripheral surface of the cloth roll 4, and the woven fabric W is wound around the cloth roll 4 while receiving the action of preventing wrinkles by the cloth guide bar 5. The cross guide bar 5 is supported by a pair of left and right support arms 6, and the support arms 6 are fixed portions 1 a on the side frame 1.
The rotation position is restricted by. By this rotation restriction, the lowermost moving position of the cross guide bar 5 is restricted to the position shown in FIG.

As shown in FIG. 2, the roll shaft of the cross roll 4 comprises a large-diameter shaft portion 4a and a small-diameter shaft portion 4b, and the cross roll 4 is located on the cloth winding position P ₁ via the small-diameter shaft portion 4b. It is rotatably supported in a mounting recess (not shown). A tooth portion 4c is formed on one end of the large diameter shaft portion 4a. The tooth portion 4c of the cross roll 4 on the woven fabric winding position P ₁ meshes with the drive gear 7. The drive gear 7 is operatively connected to the surface roller 2 via an intermediate gear 8, a sprocket 9, a chain 10 and a sprocket 11. Therefore, the cross roll 4 rotates in the fabric winding direction in synchronization with the rotation of the surface roller 2 driven by a loom drive motor (not shown).

As shown in FIGS. 1 and 2, the cross roll 4 on the cloth winding position P ₁ is a cross roll stopper 12.
By A and 12B, the roll-out from the mounting recess is always prevented. The cross roll stoppers 12A and 12B are held at the cross roll roll-out preventing position by a return spring (not shown) and are in contact with the small diameter shaft portion 4b of the cross roll 4.

As shown in FIG. 1, left and right side frames 1
A temporary vehicle 13 is stored in between. The temporary trolley | bogie 13 runs in the front-back direction of a loom by the forward / backward rotation of the motor 14. The temporary carriage 13 has a pair of left and right stand portions 15A, 1A.
5B is formed upright, and stands 15A, 15B
A full roll temporary placement recess 15a is formed at the upper end of the.
Rollers 16A and 16B are attached near the temporary placement recess 15a, and the large-diameter shaft portion 4a of the cross roll 4 is placed on the pair of rollers 16A and 16B.

A limit switch 17 is attached to the upper end of the one stand 15B. The limit switch 17 is turned on by the large diameter shaft portion 4a of the cross roll 4 mounted on the pair of rollers 16A and 16B.

As shown in FIGS. 1 and 2, the stand portion 15
Kick-out levers 18A and 18B and roll-out prevention release levers 19A and 19B are attached to the upper ends of A and 15B.

Empty roll support arms 20A and 20B are rotatably supported on the stand portions 15A and 15B.
Hands 20a are attached to the ends of the left and right empty roll support arms 20A and 20B. The hand 20a is made of an arc-shaped leaf spring and is capable of gripping and releasing the annular groove 4d of the empty roll 4A.

A torque motor type empty roll rotation motor 21 is attached to one empty roll support arm 20A. The drive gear 21a of the idle roll rotation motor 21 meshes with the tooth portion 4c of the idle roll 4A on the hand 20a, and the forward / reverse rotation of the idle roll rotation motor 21 causes the idle roll 4A on the hand 20a to rotate.

As shown in FIG. 2, one stand portion 15A
A motor 22 is attached to the inner surface of the. The drive gear 22a is disposed on the outer side surface of the stand portion 15A, and the intermediate gear 23 meshes with the drive gear 22a. The gear shaft 23a of the intermediate gear 23 has the left and right stand portions 1
It is installed between 5A and 15B. Sprockets 24A and 24B are fixed to both ends of the gear shaft 23a.

Empty roll support arm 20A. Sprockets 25A and 25B are fixed to the support shaft 20b of 20B. Sprocket 25A, 25B and sprocket 24
A and 24B are operatively connected to each other via chains 26A and 26B. Therefore, the empty roll support arms 20A and 20B are rotated by the forward and reverse rotation of the motor 22. When the temporary carrier 13 is in the storage position shown in FIG. 1, the empty roll support arms 20A and 20B support the empty roll 4A above the cross roll 4 on the cloth winding position P ₁ .

As shown in FIGS. 1 and 2, a gear 27 is rotatably supported on a spindle 20b of an empty roll support arm 20A, and an electromagnetic clutch 28 is adjacent to the gear 27 on the stand 15A. It is fastened. The clutch plate 28a of the electromagnetic clutch 28 is pressed against the side surface of the gear 27 when the electromagnetic clutch 28 is turned on, and this pressing action makes the gear 27 unable to rotate relative to the stand portion 15A.

As shown in FIG. 2, the left and right stand portions 15
A guide rail 29 is erected and supported between the intermediate portions of A and 15B. A cutter drive motor 30 is attached to one end of the guide rail 29. Cutter drive motor 3
0 drive sprocket 30a and guide sprocket 4
An endless chain 31 is wound around the chain 5, and a cutter 32 is connected to the chain 31. A slider 33 is fixed to the cutter 32. Slider 33
Is slidably supported by the guide rail 29.
Therefore, the cutter 32 travels along the guide rail 29 by the forward and reverse drive of the cutter drive motor 30.

As shown in FIG. 3, a rail cover 35 is supported on the guide rail 29. A nozzle pipe 36 is attached to the rail cover 35. As shown in FIG. 4, the cutter detector 3 is provided at the other end of the guide rail 29.
4 is installed. The cutter detector 34 is the cutter 3.
2 has a detection area at the end of the traveling route.

A lint removing sheet 37 is attached to the rail cover 35 in the vicinity of the detection area of the cutter detector 34. The surface of the lint removing sheet 37 is in a raised state, and holds thread pieces, cloth pieces, and the like. As shown in FIG. 3, the raised surface of the lint removal sheet 37 is on the traveling path of the cutter 32. More specifically, the corner portion of the lint removing sheet 37 can enter the groove 32b for introducing the cloth into the blade 32a of the cutter 32.

As shown in FIG. 1, the temporary carriage 13 is provided with four proximity switches 38, 39, 40 and 41, which are turned on when the detected object 42 attached to the loom side is encountered. As shown in FIG. 8, the proximity switch 38
~ 41, limit switch 17 and cutter detector 34
Is output to the cross exchange control computer C ₁ . The cloth exchange control computer C ₁ responds to input signals from the loom control computer C ₀ , the proximity switches 38 to 41, the limit switch 17 and the cutter detector 34, and the motors 14, 21, 22, 30 and the electromagnetic clutch 2
8 and the operation of the electromagnetic valve 43 for the nozzle pipe 36.

The loom control computer C ₀ is the machine base 1 output from the rotary encoder 44 for detecting the machine frame rotation angle.
The origin signal for each rotation is counted, and when the counted number reaches a predetermined number, a cross roll exchange signal is output to the cross exchange control computer C ₁ . The cross exchange control computer C ₁ commands the forward rotation of the motor 14 in response to the input of the cross roll exchange signal. Due to the normal rotation of the motor 14, the temporary carrier 13 moves from the retracted position in FIG. 1 to the most advanced position in FIG. During this movement, the roll-out prevention release levers 19A, 19
B contacts the cross roll stoppers 12A and 12B, and the cross roll stoppers 12A and 12B are displaced downward from the outflow prevention position shown in FIG. Then, kick lever 18A, 18B is fully roll 4 on the fabric winding position P ₁
The full roll 4B comes into contact with the large-diameter shaft portion 4a of B and is rolled and placed on the pair of rollers 16A and 16B on the stand portions 15A and 15B. That is, the pair of rollers 16A and 16B become the full roll temporary placement position P ₂ . Full roll 4B is full roll temporary position P ₂
When placed on top, the tooth portion 4c of the full roll 4B and the gear 27
The limit switch 17 is turned on while the and are meshed.

When the temporary carrier 13 on which the full roll 4B is placed moves toward the most advanced position shown in FIG. 5, the full roll 4B is moved.
The woven cloth W is pulled out from the cloth. By this drawing, the full roll 4B rotates on the pair of rollers 16A and 16B. When the proximity switch 38 and the detected object 42 meet, the proximity switch 3
8 turns on. The cross exchange control computer C ₁ stops the operation of the motor 14 in response to this ON signal. When the motor 14 is stopped, the temporary carriage 13 stops at the most forward position of FIG.

After the temporary trolley 13 is stopped, the cross exchange control computer C ₁ commands the electromagnetic clutch 28 to be turned ON and the motor 22 to rotate in the normal direction by a predetermined amount. When the electromagnetic clutch 28 is turned on, the clutch plate 28a is pressed against the gear 27, and the gear 27 cannot rotate relative to the stand portion 15A. Therefore, the full roll 4B is prevented from rotating on the temporary placement position P ₂ .

The normal rotation of the motor 22 causes the empty roll support arms 20A and 20B to move downward to the position shown in FIG. 5, and the empty roll 4A on the hand 20a pushes down the woven cloth W between the loom and the full roll 4B. The woven fabric W extending from the full roll 4B to the woven fabric winding position P ₁ side comes into contact with the guide rail 29 and the nozzle pipe 36, and then passes under the empty roll 4A while being in contact therewith.

Weaving continues even when the temporary trolley 13 is away from the storage position, and the woven fabric W is sent from the cross guide bar 5 side to the empty roll 4A side on the hand 20a.

After the motor 22 is rotated in the normal direction by a predetermined amount, the cross exchange control computer C ₁ commands the reverse rotation of the empty roll rotation motor 21, and the empty roll 4A is rotated in reverse on the hand 20a. By this reverse rotation, the tension of the woven cloth W between the full roll 4B and the empty roll 4A increases, and when this tension reaches a predetermined value, the rotation of the torque motor type empty roll rotation motor 21 stops.
In this state, the tension of the woven fabric W between the full roll 4B and the empty roll 4A is in a state suitable for cutting.

After the reverse rotation of the idle roll rotation motor 21, the cross exchange control computer C ₁ commands the forward rotation of the cutter drive motor 30 and the excitation of the electromagnetic valve 43. The cutter 32 at the standby position in FIG. 2 travels from the side of the cutter drive motor 30 toward the cutter detector 34 by the forward rotation of the cutter drive motor 30, and moves toward the guide rail 29.
And the woven fabric W passing over the nozzle pipe 36 is cut. Simultaneously with this cutting, the nozzle pipe 36 injects air toward the empty roll 4A as shown by the arrow in FIG. The woven cloth cut end W ₁ on the empty roll 4A side is wound around the peripheral surface of the empty roll 4A by the jetting action of the nozzle pipe 36.

When the cutter 32 reaches the attachment position of the lint removing sheet 37, the cutting of the woven cloth W is completed. Cutter 3
When 2 reaches the detection area of the cutter detector 34, the cutter detector 34 outputs a cutter detection signal to the cross exchange control computer C ₁ . The cross exchange control computer C ₁ commands the reverse rotation of the cutter drive motor 30 in response to the input of the cutter detection signal. This reverse rotation causes the cutter 32 to return to the standby position.

When the cutter 32 cuts the woven cloth W,
The lint generated by cutting the woven fabric enters the introduction groove 32b. If such lint collects in the introduction groove 32b, the contact between the woven fabric W and the blade 32a is hindered, and the cutting performance deteriorates. When the cutter 32 cuts the woven cloth W and reaches the attachment position of the lint removal sheet 37, the lint removal sheet 3
7 enters the introduction groove 32b. By this entry, the lint in the introduction groove 32b adheres to the lint removal sheet 37. When the cutter 32 moves back toward the standby position, the lint adhering to the lint removal sheet 37 is removed by the introduction groove 32b.
Drawn from. By this drawing, the lint in the introduction groove 32b moves to the lint removal sheet 37 side, and there is no lint in the introduction groove 32b of the cutter 32 that has returned to the standby position. Therefore, even when the cloth is replaced next time, the contact between the blade 32a of the cutter 32 and the woven cloth W is not hindered by the lint, and the woven cloth W is smoothly cut.

After cutting the woven fabric W, the cloth replacement control computer
Data C₁Is the normal rotation of the idle roll rotation motor 21 and the motor 2
Instruct to reverse the predetermined amount of 2. Empty due to reverse rotation of motor 22
The roll support arms 20A and 20B move upward, and the empty roll 4
A is the cloth winding position P₁Adjusted to the height position of.
Woven fabric cut end W on the loom side₁Of the empty roll rotation motor 21
It is wound around the empty roll 4A by forward rotation. From this state
Cross exchange control computer C₁Reverses the motor 14
Order. The temporary carriage 13 is retracted by the reverse rotation of the motor 14.
Retreat towards position. That is, the empty roll 4A on the loom side
Woven fabric cut end W ₁Woven cloth winding position P while winding
₁Head to.

Proximity switch 4 as the temporary carrier 13 moves backward
As a result of the encounter between 0 and the detected object 42, the temporary carriage 13 is moved to FIG.
Stop at the empty roll insertion position indicated by the virtual line. Due to this backward movement stop, the empty roll 4A on the hand 20a is inserted at the cloth winding position P ₁ .

After inserting the empty roll, the temporary carrier 13 moves forward,
It stops when the proximity switch 39 and the detected object 42 meet. The temporary trolley 13 is equipped with the full roll 4B and waits for the arrival of the transport vehicle at this stop position. The carrier moves the loaded empty roll onto the hand 20a and receives the full roll 4B. When the full roll 4B moves away from the temporary placement vehicle 13, the limit switch 17 is turned off, and the temporary placement vehicle 13 is retracted to the storage position in FIG.

The present invention is, of course, not limited to the above-mentioned embodiment, and for example, lint removal can be performed by suction or air blowing.

[0035]

As described above in detail, according to the present invention, since the lint removing means is arranged on the moving path of the cutter, the lint attached to the cutter along with the cutting of the woven fabric is removed every time the woven fabric is cut. Thus, the excellent effect of avoiding a cutting error due to the attachment of lint can be achieved.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a temporary trolley is in a storage position.

FIG. 2 is a partially omitted rear view of the temporary trolley.

FIG. 3 is an enlarged side view of a main part.

FIG. 4 is an enlarged perspective view of a main part.

FIG. 5 is a side view showing a state in which the temporary trolley is in the most forward position.

FIG. 6 is a plan view showing a cut state of the woven cloth.

FIG. 7 is a side view showing a state in which the temporary trolley is in the empty roll mounting position.

FIG. 8 is a control block diagram.

[Explanation of symbols]

4A ... empty roll, 4B ... full roll, 13 ... temporary trolley, 3
2 ... Cutter, 37 ... Lint removal sheet.

Claims (1)

[Claims] 1. A cutter for migrating a full roll from a woven fabric winding position to a full roll temporary placement position and cutting the woven fabric between the full roll and the empty roll on the full roll temporary placement position in the width direction thereof. In the provided cross roll exchanging device, the lint removing means is arranged on the moving path of the cutter so that the lint removing means that removes the lint adhering to the cutter to the removal action area of the lint removing means from the cutter. Cloth cutting device in the cross roll changing device.