JPH06146141A - Safety device in temporary truck for transferring cloth roller in loom - Google Patents

Abstract

PURPOSE:To provide the subject safety device designed to ensure cloth roller exchange operations through preventing the hazards for workers or their collision against a cloth roller carrying truck by combinedly equipping a temporary truck with an area sensor having detectable area in the width direction of the temporary truck and another area sensor having detectable area in the advancing direction of the temporary truck. CONSTITUTION:In the temporary truck 13, a light projection element 31A is set at the base end of one stand 15A thereof and a light-receiving element at the base end of the other stand, and the temporary truck 13 is equipped with the 1st area sensor having detectable area in the width direction of the temporary truck 13 and the 2nd area sensor having detectable area in the advancing direction of the truck 13 by setting up a reflective area sensor 33 at the base ends of both the stands in a similar way to that mentioned above. When the 1st area sensor detects an obstacle during advancing the truck 13 from its housing site based on cloth roll exchange signal, a control computer stops advancing the truck 13 until the obstacle has gone out of the presence, and when the 2nd area sensor detects an obstacle, the truck 13 is retreated to a waiting site for transferring cloth rollers and an alarm is actuated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a cross roll transfer temporary mount vehicle which is provided with a full roll temporary position and is switched between a storage position and a cross roll transfer standby position.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 1-285549 discloses a cross roll transfer which can be switched between a standby position close to a cloth winding position and a delivery position for delivering a full roll to a cross roll transport vehicle. A loading temporary trolley is disclosed. A full roll temporary placement position is provided on the temporary placement carriage, and the full roll temporarily placed at the temporary placement position on the temporary placement carriage placed at the transfer position is transferred to the cross roll transport vehicle. ing. In this conventional apparatus, weaving can be continued with the full roll temporarily placed at the full roll temporary placement position, and the arrival of the cross roll transport vehicle can be waited with a sufficient time. Therefore, it is possible to increase the number of looms carried by one cross roll carrier.

[0003]

The temporary trolley can be moved to a position further forward than the transfer position in order to secure a working space for inserting an empty roll. However, this moving position interferes with the traveling route of the cross roll transport vehicle, and there is a possibility that the cross roll transport vehicle collides with the temporary placement carriage. In addition, there are cases where the worker performs a weft insertion error process or a warp cutting process from the front side of the loom when the temporary trolley is in the standby position.
In such a case, it is dangerous for the temporary carrier to start performing the cross roll transfer operation.

It is an object of the present invention to provide a safety device for stopping the cross roll transfer operation of the temporary carrier when there is an obstacle that interferes with the cross roll transfer operation of the temporary carrier. To do.

[0005]

Therefore, according to the present invention,
In the first aspect of the present invention, the cross roll transfer operation is performed for the cross roll transfer temporary placement carriage that has the full roll temporary placement position and is switched between the storage position and the cross roll transfer standby position. Drive means for cross roll transfer of
An area sensor installed on the temporary carriage so as to detect the width direction of the temporary carriage on the front side of the temporary carriage, and a transfer operation of the cross roll transfer drive means when the area sensor detects an obstacle. A safety device having a control means for stopping the

According to the second aspect of the present invention, the cross roll transfer driving means for performing the cross roll transfer operation and the temporary trolley so as to detect the width direction of the temporary trolley on the front side of the temporary trolley. The first area sensor installed and the second area sensor installed on the temporary carriage so as to detect the forward direction of the temporary carriage.
When the area sensor and the first area sensor detect an obstacle, the transfer operation of the cross roll transfer drive means is stopped, and when the second area sensor detects an obstacle, the cross roll transfer drive is performed. The safety device is provided with a control means for switching the transfer operation of the means to the retract operation.

[0007]

When the area sensor having a detection area in the width direction of the temporary carrier detects an obstacle on the front side of the temporary carrier, the control means stops the transfer operation of the cross roll transfer drive means. The obstacle that enters the detection area of the area sensor is, for example, a worker, and the worker is not harmed by the transfer operation of the temporary carrier.

When an area sensor having a detection area in the forward direction of the temporary trolley detects an obstacle, the control means switches the transfer operation of the cross roll transfer drive means to the retract operation.
An obstacle that enters the detection area of the area sensor is, for example, a cross roll carrier, and the cross roll carrier does not interfere with the temporary carrier.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
A description will be given based on FIG. As shown in FIG. 1, reference numeral 1 denotes a side frame of a loom, and a surface roller 2 and a press roller 3 installed between left and right side frames 1 of the loom take up the woven fabric 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 so that the large diameter shaft portion 4a of the cross roll 4 is placed on the 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 placed on the 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.

Sprockets 25A and 25B are fixed to the support shaft 20b of the empty roll support arms 20A and 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 cloth roll 4 on the cloth winding position P ₁ .

As shown in FIGS. 1 and 2, a gear 27 is rotatably supported on a support shaft 20b of the empty roll support arm 20A, and an electromagnetic clutch 28 is adjacent to the gear 27 on the stand portion 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
The cutter 32 travels along the guide rail 29 by the forward and reverse drive of 0. The rail cover 3 is attached to the guide rail 29.
5 are supported. A nozzle pipe 36 is attached to the rail cover 35.

A light projecting element 31A is installed on the upper edge of the base end of the stand portion 15A, and a light receiving element 31B is installed on the base end of the stand portion 15B. The light projecting element 31A and the light receiving element 31B face each other, and the light projected from the light projecting element 31A is received by the light receiving element 31B. That is, the light projecting element 31A and the light receiving element 31B form a transmissive area sensor, and the area sensors 31A and 31B have a detection area between the base end portions of the stand portions 15A and 15B.

Reflective area sensors 33 and 34 are installed on the front edges of the base portions of the stand portions 15A and 15B. The area sensors 33 and 34 have detection areas in the forward direction of the temporary carrier 13.

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. 7, the proximity switch 38
˜41, limit switch 17, and rotary encoder 44 output signals are taken into 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, and the limit switch 17 in response to the motor 1
The operation of the electromagnetic valves 43, 4, 21, 22, 30, the electromagnetic clutch 28 and the nozzle pipe 36 is controlled. A restart switch 37 and an alarm device 45 are connected to the cross exchange control computer C ₁ .

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.

While the temporary trolley 13 is moving, the roll-out prevention release levers 19A, 19B move to the cross roll stoppers 12A, 1B.
2B, the cross roll stoppers 12A and 12B are displaced downward from the outflow prevention position shown in FIG. Next, the kick-out levers 18A and 18B come into contact with the large-diameter shaft portion 4a of the full roll 4B on the cloth winding position P ₁ , and the full roll 4B moves onto the rollers 16A and 15A on the stand portions 15A and 15B.
16B is transferred and placed. That is, the rollers 16A and 16B
Is the full roll temporary placement position P ₂ . When the full roll 4B is placed on the full roll temporary placement position P ₂ , the tooth portion 4c of the full roll 4B meshes with the gear 27, and the limit switch 17 is turned on.

When the temporary carrier 13 on which the full roll 4B is placed moves toward the most advanced position shown in FIG. 3, the full roll 4B
The woven cloth W is pulled out from the cloth. By this drawing, the full roll 4B rotates on the rollers 16A and 16B. When the proximity switch 38 and the detection target 42 meet, the proximity switch 38 is turned 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 carrier 13 stops at the most forward position in FIG.

After the temporary carriage 13 is stopped, the cross exchange control computer C ₁ commands the motor 22 to rotate forward by a predetermined amount.
The normal rotation of the motor 22 causes the empty roll support arms 20A, 2
0B moves down to the position shown in FIG. 3, 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 comes into contact with the peripheral surface of the large diameter shaft portion 4a of the empty roll 4A. Pass the lower side.

Next, the cross exchange control computer C ₁
Commands the electromagnetic clutch 28 to be turned on. Electromagnetic clutch 2
When 8 is turned on, the clutch plate 28a is pressed against the gear 27,
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 .

Weaving continues even when the temporary trolley 13 is away from the storage position, and the woven cloth 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 idle roll rotation motor 21. The reverse rotation of the empty roll rotation motor 21 causes the empty roll 4A to reversely rotate on the hand 20a, so that the woven fabric W is removed by
It is taken in the direction of A rotation. This pulling action increases the tension of the woven fabric W between the full roll 4B and the empty roll 4A, and when the tension reaches a predetermined value, the rotation of the torque motor type empty roll rotation motor 21 is stopped. 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.

The cross exchange control computer C ₁ grasps the reverse rotation stop of the idle roll rotation motor 21 based on the input signal from the rotary encoder 44. In response to the stop of the reverse rotation, 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 travels from the empty roll support arm 20A side toward the empty roll support arm 20B side to cut the woven fabric W. 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. After the cloth is cut, the cloth exchange control computer C ₁ commands the reverse rotation of the cutter drive motor 30. This reverse rotation causes the cutter 32 to return to the standby position.

After cutting the woven cloth 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 carriage 13 moves backward
When the 0 and the detected object 42 meet, the temporary carriage 13 is moved to the position shown in FIG.
Stop at the empty roll insertion position shown in. Due to this backward stop, the empty roll 4A on the hand 20a moves to the cloth winding position P.
Inserted in ₁ .

The temporary placement carriage 13 stops at the cross roll transfer standby position shown in FIG. 6 when the proximity switch 39 and the object 42 to be detected encounter due to the forward movement of the temporary placement carriage 13 after the empty roll is inserted. The temporary trolley | bogie 13 mounts the full roll 4B, and waits for the arrival of the cross roll conveyance vehicle 46 in this cross roll transfer standby position. The cross roll carrier 46 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 above-mentioned cross-roll exchange operation (cross-roll transfer operation) is usually performed when the first area sensors 31A and 31B and the second area sensors 33 and 34 do not detect obstacles in their detection areas. Is the operation. First area sensor 31A, 31B or second area sensor 3
If 3,34 detect obstacles in their detection areas,
The cross exchange control computer C ₁ executes the cross roll exchange operation control shown in the flow charts of FIGS.

The cross exchange control computer C ₁ receives the cross roll exchange signal and then outputs the first air sensor 31A,
31B and the second area sensors 33 and 34 are operated.
When the first air sensor 31A, 31B or the second area sensor 33, 34 detects an obstacle, the cross replacement control computer C ₁ does not move the temporary carriage 13 forward from the storage position. When the obstacle is removed, the cross exchange control computer C ₁ advances the temporary carriage 13 from the storage position. During this forward movement, the first area sensors 31A, 31B
Detects an obstacle, the cross exchange control computer C
₁ stops the operation of the motor 14 and stops the forward movement of the temporary carriage 13. Then, the cross exchange control computer C ₁ activates the alarm device 45. When the restart switch 37 is turned on, the cross exchange control computer C ₁ releases the alarm in response to the input of the restart signal, activates the motor 14, and restarts the temporary carriage 13 forward.

An obstacle that enters the detection areas of the first area sensors 31A and 31B is, for example, a worker. It is dangerous if the temporary carriage 13 moves while the worker is performing weft insertion error processing, warp cutting processing, etc. from the front side of the temporary carriage 13, but the first area sensors 31A and 31B prevent this danger. To do.

When the second area sensors 33 and 34 detect an obstacle, the cross exchange control computer C ₁ retracts the temporary carrier 13 to the transfer standby position shown in FIG. 6 and activates the alarm device 45. . Second area sensor 3
An obstacle that enters the detection areas of 3, 34 is, for example, a cross roll carrier 46. If the temporary placement carriage 13 moves to the most forward position in FIG. 3 while the cross roll carriage 46 is passing in front of the loom, the temporary carriage 13 and the cross roll carriage 46 collide. The temporary placement vehicle 13 and the cross roll transport vehicle 46 at the transfer standby position do not interfere with each other, and the second area sensors 33 and 34 prevent the temporary placement vehicle 13 and the cross roll transport vehicle 46 from colliding.

When there is no obstacle in the detection areas of the second area sensors 33 and 34, the cross exchange control computer C
₁ operates the motor 14 to move the temporary carriage 13 to the most forward position.

Obstacle detection during cross-roll exchange operation such as cutting the woven fabric on the temporary carriage 13 placed at the most forward position, winding the woven fabric around the empty roll 4A, and inserting the empty roll at the woven fabric winding position P ₁ . Then, the same operation stop as described above or withdrawal to the transfer standby position is performed. First
In the case of obstacle detection by the area sensors 31A and 31B, the tilting operation of the empty roll support arms 20A and 20B,
Operation of the empty roll rotation motor 21, cutter drive motor 3
All zero operations are also stopped. By stopping the operation for such cross roll exchange, the safety of the worker is ensured.

When the temporary carrier 13 stops at the transfer standby position to wait for the arrival of the cross roll carrier 46, the cross exchange control computer C ₁ inputs an ON signal from the proximity sensor 39, that is, a transfer standby completion signal. In response to the first area sensor 31A, 31B and the second area sensor 33,
The operation of 34 is stopped. Full roll 4B on temporary carriage 13
When is transferred to the cross-roll carrier 46 side, the limit switch 17 is turned off. The cross exchange control computer C ₁ operates the first area sensors 31A and 31B in response to the OFF signal. Then, when the first area sensors 31A and 31B detect an obstacle during the storing operation of the temporary loading vehicle 13 after the full roll transfer, the temporary loading vehicle 13 is detected.
The storage operation is stopped and an alarm is issued, and the storage operation is restarted by turning on the restart switch 37. Temporary cart 1
3 is placed in the storage position, the first area sensor 31
The operations of A and 31B stop.

As described above, the cross exchange control computer C ₁ performs the cross roll exchange operation on the temporary carriage 13 based on the obstacle detection information from the first and second area sensors. The transfer driving means is stopped or switched to control for retreat. By such control, the safety of the operator is ensured, and the collision between the temporary trolley 13 and the cross roll carrier 46 is avoided.

The present invention is, of course, not limited to the above-mentioned embodiment. For example, even when the second area sensor detects an obstacle, the cross roll transfer operation in the temporary placing carriage 13 is immediately stopped. Can be controlled.

The present invention can also be applied to a temporary trolley as disclosed in Japanese Patent Laid-Open No. 1-285549.

[0045]

As described above in detail, according to the present invention, the area sensor is installed in the temporary carrier to detect the obstacle, so that the transfer operation in the temporary carrier is dangerous to the operator. Therefore, it is possible to prevent a situation in which the temporary trolley and the cross-roll carrier collide with each other, which is an excellent effect.

[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 front view of a temporary carrier.

FIG. 3 is a side view showing a state where the temporary trolley is in the most forward position.

FIG. 4 is a plan view showing a woven cloth cutting state.

FIG. 5 is a side view showing a state where the temporary trolley is in the empty roll insertion position.

FIG. 6 is a side view showing a state in which the temporary carrier is in a transfer standby position.

FIG. 7 is a control block diagram.

FIG. 8 is a flowchart showing a cross roll exchange control program.

FIG. 9 is a flowchart showing a cross roll exchange control program.

FIG. 10 is a flowchart showing a cross roll exchange control program.

[Explanation of symbols]

4A ... empty roll, 4B ... full roll, 13 ... temporary trolley, 1
4 ... Motor serving as drive means for cross roll transfer, 21 ...
An empty roll rotation motor that serves as a drive means for cross roll transfer, 22 ... a motor that serves as a drive means for cross roll transfer,
30 ... Cutter drive motor serving as drive means for cross roll transfer, 31A, 31B ... First area sensor, 33,
34 ... second area sensor, P ₂ ... full roll temporary location position,
C ₁ ... Cross exchange control computer.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location G01N 21/89 8304-2J

Claims (2)

[Claims] 1. A cross roll transfer temporary placement carriage having a full roll temporary placement position, which is switched between a storage position and a cross roll transfer standby position, and a cross roll for performing a cross roll transfer operation. A transfer drive means, an area sensor installed on the temporary carriage to detect the width direction of the temporary carriage on the front side of the temporary carriage, and a cross roll transfer when the area sensor detects an obstacle. Safety device for a cross roll transfer temporary placement carriage of a loom, comprising: 2. A cross roll transfer temporary placement carriage having a full roll temporary placement position, which is switched between a storage position and a cross roll transfer position, and a cross roll transfer for performing a cross roll transfer operation. A loading drive means, a first area sensor installed on the temporary placement vehicle so as to detect the width direction of the temporary placement vehicle on the front side of the temporary placement vehicle, and a temporary area sensor for detecting the forward direction of the temporary placement vehicle. When the second area sensor installed on the table and the first area sensor detect an obstacle, the transfer operation of the cross roll transfer drive means is stopped, and the second area sensor detects the obstacle. A safety device for a cross roll transfer temporary placing vehicle of a loom, comprising: a control means for switching the transfer operation of the cross roll transfer drive means to a retracting operation.