JPH0637258B2 - Wrinkle removal method for fabric spreading machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is to cut and stack cloths fed from an end-of-critical roll on a workbench for processing such as cutting to a required length. In a fabric spreading machine that performs folding work such as folding and folding, when setting the fabric body unwound from the fabric roll to the fabric portion before starting the fabric spreading, in the tip region of the fabric body The present invention relates to a method for automatically removing wrinkles in the length direction.

(Prior Art and Problems Thereof) In the above-described fabric spreading machine, as a preparatory work before starting the fabric spreading, the fabric roll is transferred to a predetermined position, and the fabric roll part is spread from the fabric roll. It is necessary to set the cloth body pulled out from the original fabric roll along the cloth body movement path up to.

When an operator attends to set the cloth body from the original roll to the stretched portion, the worker does not touch the cloth body so that the front end area of the cloth body is not unduly loosened (wrinkled). It is possible to set the fabric body by pulling it in the length direction with the help of the above, but if such an artificial wrinkle removal method was adopted, the preparatory work before the start of spreading can be automated. Absent. Moreover, if there is slack (wrinkles) in the lengthwise direction in the tip region of the set fabric, it is not possible to properly perform the subsequent rebound action. Must be completely removed.

(Means for Solving the Problems) In view of the above-mentioned conventional problems, the present invention proposes a method capable of reliably removing the wrinkles in the longitudinal direction of the cloth body front end region automatically without manual labor. The feature of the present invention is that a cloth conveying means that inherits the cloth that is unrolled by the unrolling roller for driving the original fabric roll and that is fed downward and laterally conveys the cloth to the spreading portion. In a spreading machine provided with a cloth sliding contact which is abutted when a cloth hanging on the cloth conveying means is moved laterally in the conveying direction, below the cloth receiving position of the cloth conveying means. A member is erected, and under the condition that the cloth body is conveyed under the cloth body sliding contact member to an appropriate position by the cloth body conveying means, the feeding of the cloth body to the cloth body conveying means is stopped for a set time. Then, only the cloth conveying means is operated.

(Operation of the invention) The cloth unreeled by the unwinding roller is transferred onto the cloth conveying means, conveyed laterally by the cloth conveying means, and fed into the spreading portion. When it moves under the cloth body sliding member and moves to an appropriate position, it sends out the cloth body to the cloth body conveying means, that is, the driving of the unraveling roller, from the unraveling roller to the cloth body conveying means. When another conveying means is used during the period, the driving of the another conveying means is temporarily stopped. The feeding of the cloth to the cloth conveying means may be stopped when the set time has elapsed, or when the detector detects the tip of the cloth conveyed by the cloth conveying means. I can.

After the feeding of the cloth body to the cloth body conveying means is stopped as described above, only the cloth body conveying means is operated for a set time, and as a result, the cloth body placed on the cloth body conveying means is operated. Only the portion (tip region) moves in the carrying direction, and the cloth body portion hanging on the cloth carrying means moves in the carrying direction to contact the cloth sliding contact member. By the subsequent transporting operation of the cloth transporting means, the cloth body portion from the portion in contact with the cloth body sliding contact member to the tip of the cloth body, that is, the cloth body portion on the cloth transporting means (tip Even if there is a partial slack (wrinkle) in the length direction, the slack (wrinkle) is removed by the pulling action in the transfer direction.

When the wrinkle removing action in the cloth body length direction for operating only the cloth body conveying means for a set time is completed, the feeding of the cloth body to the cloth body conveying means and the conveyance of the cloth body by the cloth body conveying means are performed. By doing so, the fabric body can be fed to the stretched portion.

(Example) Hereinafter, one example of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a reversing machine main body, which can reciprocate on the retraction workbench 2 in the length direction of the workbench 2 and can move laterally in the upper and left directions. A horizontal moving table 3 is provided, and on the horizontal moving table 3, a turntable 5 is supported around a vertical axis 4 so that the turntable 5 can be rotated 180 degrees in the forward and reverse directions. On the turntable 5, a pair of right and left inclined roll rails 6 for supporting original fabric rolls and an unrolling roller 7 for driving contact rolls of the original fabric rolls R both ends of which are supported by the inclined rails 6 via a core axis C. And are provided. 8 is an auxiliary belt conveyor provided on the traversing table 3, 9 is a cloth conveying means provided on the main body 1 of the spreading machine, and is a main belt conveyor 10 and an axis adjacent to the end of the main belt conveyor 10. It is composed of a feeding roller 11 which is supported and linked to the main belt conveyor 10. 1
Reference numeral 2 denotes a spreading portion disposed at the lower rear end of the spreading machine main body 1, which incorporates a conventionally known cloth front-back separating and cutting device. M1 is a motor for rotating the unwinding roller 7, M2
Is a motor for driving the auxiliary belt conveyor 8, and M3 is a motor for driving the cloth conveying means 9 (main belt conveyor 10 and feeding roller 11).

As shown in FIGS. 2 and 3, the cloth body sliding contact member 13 is provided on the upper side of the main belt conveyor 10 on the lower side in the transport direction of the main belt conveyor 10 than the position right below the terminal end of the auxiliary belt conveyor 8. It is arranged. This cloth sliding contact member 1
Reference numeral 3 is a round bar-shaped member positioned parallel to the left-right width direction of the main belt conveyor 10, and left and right are supported by concentric support shafts 14 on the left and right spreading machine body side frames 1a, respectively. A descending limit position A, which is provided between the tip ends of the pair of swing arms 15 and is located with a small gap between it and the surface of the main belt conveyor 10, and an ascending limit position B that is separated above this. In the meantime, the rocking arm 15 can be moved up and down with the rocking motion, and is normally stable at the lower limit position A due to gravity. Reference numeral 16 denotes a balancer pipe member which is provided between the rear ends of the swing arms 15 on the side opposite to the side where the cloth body sliding contact member 13 is provided with respect to the support shaft 14. RS1
Is a rotary solenoid for switching the cloth body sliding contact member 13 to the ascending limit position B, and one side of the rotary machine main body side frame 1a
And a drive lever 17 that is rotated upward by energization to energize pushes up one swing arm 15 against gravity. A stopper for restricting the swing range of the swing arm 15 is omitted in the drawing.

In addition, as shown in FIGS. 2 and 3,
A cloth body presence / absence detector S1 using a photoelectric switch for detecting a cloth body T hanging from the rear end portion of the auxiliary belt conveyor 8 onto the main belt conveyor 10, and the cloth body T has a constant width in the front-rear direction shown in FIG. The cloth sliding contact member 1 from the normal hanging region 18
3, a cloth tension detector S2 using a photoelectric switch for detecting that the cloth T has come off, and the cloth T is the normal hanging region 1
8 to detect the detachment of the cloth sliding contact member 13 from the side opposite to the side where the cloth sliding contact member 13 is present.
3 and a cloth edge aligning detector S4 for detecting that one side of the cloth T is in a fixed position are arranged side by side in the left-right width direction. Further, as shown in FIG.
A cloth body presence / absence detector S5 for detecting the cloth body T is arranged at the end position of the cloth hanging movement path from 1 to the extending portion 12.

The detection signals from each of the detectors S1 to S5 are input to the control means 19 formed by combining a microcomputer and various controllers as shown in FIG. 4, and based on the detection signals from each of the detectors S1 to S5. The motors M1 to M3, the rotary solenoid RS1 and the like are automatically controlled to automatically perform the operations described below.

That is, as shown in FIG. 1, the original fabric roll R is transferred onto the original fabric roll supporting inclined rail 6 via the core axis C thereof, and the cloth T is transferred from the original fabric roll R onto the unraveling roller 7. If the unwinding roller 7 is pulled out, the unwinding roller 7 is driven by the motor M1 and the auxiliary belt conveyor 8 is driven by the motor M2.
Driven by. Then, the fabric T unreeled from the unraveling roller 7 hangs down and moves to a position near the terminal end portion on the auxiliary belt conveyor 8, and by this auxiliary belt conveyor 8, the main belt conveyor is driven at the same speed as the unwinding speed from the unraveling roller 7. It is fed to 10 people. When reversing the front and back of the cloth T, the turntable 5 is reversed by 180 degrees, so that the position where the cloth T is transferred onto the auxiliary belt conveyor 8 is changed to the vicinity of the fulcrum of the auxiliary belt conveyor 8.

When the front end of the cloth T hangs downward from the end of the auxiliary belt conveyor 8, it is detected by the cloth presence / absence detector S1 before being transferred onto the main belt conveyor 10. The fabric detection signal of the detector S1 causes the unwinding roller 7 and the auxiliary belt conveyor 8 to automatically stop, and then the traverse table 3 is laterally fed in a predetermined direction, so that the auxiliary belt conveyor 8 is immediately below the end portion. When the side edge of the hanging cloth T reaches a fixed position facing the cloth edge alignment detector S4, the detector S4
When turned on, the lateral feed of the lateral movement table 3 is stopped by the detection signal of the detector S4.

When the edge aligning action of the cloth body T is completed, the unraveling roller 7, the auxiliary belt conveyor 8, the main belt conveyor 10,
And the feeding roller 11 is driven by each of the motors M1 to M3, and the cloth T fed from the original roll R is fed to the spreading portion 12. In this process, as shown in the flowchart of FIG. The wrinkle removing action in the length direction of the cloth T is performed by the procedure.

That is, as shown in the phantom line in FIG. 2 and in FIG. 6, the rotary solenoid RS1 is energized and excited to switch the cloth sliding contact member 13 from the lower limit position A to the upper limit position B, and the main body sliding contact member 13 and After the gap between the belt conveyor 10 and the belt conveyor 10 is increased and the cloth T easily passes between them,
The unwinding roller 7, the auxiliary belt conveyor 8, the main belt conveyor 10, and the feeding roller 11 are connected to the motors M1 to M1.
When driven by M3, as shown in FIG.
The cloth T stopped at the position where the tip is detected is again sent out by the disentanglement roller 7 and the auxiliary belt conveyor 8 and is transferred onto the main belt conveyor 10,
As shown in FIG. 7, it passes through the lower side of the cloth sliding contact member 13 and is conveyed toward the feeding roller 11.

Therefore, after starting the motors M1 to M3 as described above,
The time t1 required for the leading end of the cloth T to be conveyed to the vicinity of the feeding roller 11 is set in advance, and when the set time t1 has elapsed, the rotary solenoid RS1 is demagnetized as shown by the solid line in FIG. Cloth contact member 13
Is returned from the ascending end position B to the descending end position A by gravity and brought close to the cloth T on the surface of the main belt conveyor 10. Further, only the energization to the motors M1 and M2 is cut off to stop the unwinding roller 7 and the auxiliary belt conveyor 8, and only the cloth conveying means 9 (the main belt conveyor 10 and the feeding roller 11) is continuously driven by the motor M3.

As a result, as shown in FIG. 8, the portion Ta of the cloth T placed on the main belt conveyor 10 moves in the conveying direction, so that the portion Ta hangs down from the end portion of the auxiliary belt conveyor 8 onto the main belt conveyor 10. The existing cloth body portion Tb moves in the conveying direction of the main belt conveyor 10 and contacts the cloth body sliding contact member 13. After that, the movement of the cloth body portion Ta in the conveying direction is blocked by the cloth body sliding contact member 13, so that the main belt conveyor 10 and the feeding roller 11 are slidably contacted with respect to the cloth body portion Ta to rotate the cloth body portion Ta. It will be pulled in the conveying direction to Ta. As a result, even if the cloth body portion Ta has a slack (wrinkle) in the lengthwise direction, the slack is automatically removed and the cloth becomes taut appropriately.

Time t2 for the above-mentioned wrinkle removing action, that is, the motor M
3, the time t2 during which only the cloth conveying means 9 is driven is set in advance, and when the set time t2 has elapsed, the motor M3 is de-energized, and the cloth conveying means 9 (main belt conveyor) By stopping 10 and the feeding roller 11), the wrinkle removing action in the fabric length direction is completed. The set time t2 for the wrinkle removing action is the cloth T
It is desirable to be configured so that it can be arbitrarily adjusted according to the type of the. Further, the timing for starting the wrinkle removing action is set to be when the set time t1 has elapsed, but a detector that detects that the tip of the cloth body T has reached the vicinity of the payout roller 11 is used, and when the detector is turned on, The wrinkle removing action may be started.

As shown in the flowchart of FIG. 5, when the set time t2 for the wrinkle removing action has elapsed, the motor M3
Without turning off the power supply to the cloth conveying means 9 and re-driving the unwinding roller 7 and the auxiliary belt conveyor 8 stopped before that by the motors M1 and M2,
It is also possible to continuously carry out and convey the fabric body T. In any case, finally, the cloth body T is conveyed to a position where the tip reaches the stretched portion 12, that is, a position detected by the cloth body presence / absence detector S5, and by the detection signal of the detector S5. The energization of the motors M1 to M3 is cut off, and the feeding of the cloth T and the setting of the extending portion 12 are completed.

The spreading operation is performed by a conventionally known method. During the spreading operation, the cloth T fed from the original roll R is sent to the spreading section 12 by the cloth conveying means 9,
When the cloth body feeding speed from the auxiliary belt conveyor 8 to the cloth body conveying means 9 and the cloth body moving speed on the cloth body conveying means 9 are substantially the same, the auxiliary belt conveyor 8 to the main belt conveyor The cloth T that hangs up 10 moves in a normal hanging region 18 having a constant width in the front-rear direction shown in FIG.
If the cloth moving speed on the cloth conveying means 9 is faster than the cloth feeding speed from the auxiliary belt conveyor 8 onto the cloth conveying means 9, the cloth T hung from the auxiliary belt conveyor 8 is increased. Is gradually pulled to the side where the cloth sliding contact member 13 is present, and when it comes off the normal hanging region 18 to the side where the cloth sliding contact member 13 is present, the cloth tension detection S2 detects the cloth T and turns it ON. To do. On the contrary, when the moving speed of the cloth on the cloth conveying means 9 is slower than the speed of feeding the cloth on the cloth conveying means 9 from the auxiliary belt conveyor 8, the cloth T hanging from the auxiliary belt conveyor 8 is When the cloth slidably contacting member 13 is gradually slackened in the opposite direction, and when it comes off from the normal hanging region 18 to the side opposite to the side having the cloth slidable contacting member 13, the cloth slackness detector S3 is released. The cloth T is detected and turned on.

However, as shown in the flow chart of FIG. 9, when the cloth tension detector S2 is turned on, the rotation speeds of the motors M1 and M2 are accelerated, and the feeding speed of the cloth T by the unwinding roller 7 and the auxiliary belt conveyor 8 is increased. Is accelerated. or,
When the cloth slack detector S3 is turned on, the motors M1 and M
The rotation speed of 2 is reduced, and the feeding speed of the fabric T by the unwinding roller 7 and the auxiliary belt conveyor 8 is reduced. In this way, the cloth body portion T hanging above the cloth body conveying means 9
Based on the movement of b in the conveying direction or the relaxation in the opposite direction, the feeding speed of the cloth T by the disentangling roller 7 and the auxiliary belt conveyor 8, that is, the speed of feeding the cloth to the cloth conveying means 9,
Is automatically controlled so that the cloth body T hanging from the auxiliary belt conveyor 8 onto the main belt conveyor 10 is always adjusted to be within the normal hanging area 18 having a constant width in the front-rear direction, and the cloth body T is conveyed. It is possible to prevent the cloth T from being unduly pulled by the means 9 and the cloth T from loosening and wrinkling on the cloth conveying means 9.

Further, the automatic control of the cloth body feeding speed also works at the time of starting the cloth body conveyance after the lengthwise wrinkle removing operation of the cloth body T described above is completed. That is, when the lengthwise wrinkle removing action of the cloth T is completed, the tension that the cloth T sent from the auxiliary belt conveyor 8 onto the main belt conveyor 10 contacts the cloth sliding contact member 13 as shown in FIG. Since it is in a state, the cloth body portion T
b is separated from the normal hanging region 18 toward the cloth sliding contact member 13 side. Therefore, since the cloth tension detector S2 is ON,
Drive all the motors M1 to M3 to move the cloth body T to the spreading portion 1
When the sheet is fed to the auxiliary belt conveyor 8, the driving speeds of the unwinding roller 7 and the auxiliary belt conveyor 8 by the motors M1 and M2 are accelerated, and the cloth T sent from the auxiliary belt conveyor 8
Is released.

After the fabric spreading work is completed, the fabric roll 12 is moved to the fabric spreading part 12
The fabric T remaining in the fabric moving path up to is rewound to the original fabric roll R by reversely driving all of the unraveling roller 7, the auxiliary belt conveyor 8 and the fabric conveying means 9.

When the auxiliary belt conveyor 8 is used as in the embodiment, the cloth hanging position on the cloth conveying means 9 is constant regardless of whether the turntable 5 is turned upside down. One cloth body sliding contact member 13 arranged at a fixed position with respect to the conveyance direction can always act effectively. Further, the presence of the cloth sliding contact member 13 makes it possible to effectively perform the wrinkle removing action in the longitudinal direction of the cloth body front end region. When the member 13 is configured to be positionable in the perspective direction with respect to the surface of the cloth conveying means 9, the cloth tip is first moved under the cloth sliding member 13 and conveyed to an appropriate position. At this time, the cloth sliding contact member 13 is separated from the cloth conveying means 9 to widen the lower space of the cloth sliding contact member 13, and the cloth body tip is secured to ensure that the cloth sliding contact member 13 is below the cloth sliding contact member 13. It can be moved smoothly.

(Effect of the Invention) As described above, according to the method for removing wrinkles in the cloth in the cloth spreading machine of the present invention, the cloth is set at the time of the preparatory work before starting the cloth spreading for setting the cloth from the original roll to the cloth spreading portion. Since the slack (wrinkle) in the lengthwise direction of the distal end region of the body can be automatically removed, the subsequent rebound action can be favorably performed.
Moreover, not only can the manpower be reduced, but a dedicated machine for removing wrinkles is not required at all, and the preparation work before the start of the spreading can be automated with almost no increase in equipment cost. .

[Brief description of drawings]

FIG. 1 is a schematic side view for explaining the entire spreading machine, FIG. 2 is a vertical cross-sectional side view of a cloth transfer position on a cloth conveying means, and FIG.
FIG. 4 is a vertical sectional front view of the same portion, FIG. 4 is a block diagram illustrating a control mechanism, FIGS. 5 and 9 are flowcharts illustrating a control method, and FIGS. It is a side view explaining the wrinkle removal method. 1 ... Main body of spreading machine, 3 ... Traverse table, 5 ... Turntable, 6 ... Inclined rail for supporting roll, 7 ...
Disassembling roller, 8 ... Auxiliary belt conveyor, 9 ... Fabric conveying means, 10 ... Main belt conveyor, 11 ... Delivery roller, 13 ... Fabric sliding contact member, 15 ... Swing arm, 16 ... ... Pipe material for balancer, 17 ... Drive lever, M1 to M3 ... Motor, S1 to S5 ... Detector,
RS1 ... Rotary solenoid, R ... Original roll,
T ... Cloth.

Claims (2)

[Claims] Claim: What is claimed is: 1. A fabric spreading means provided with a fabric transporting means for inheriting a fabric fed out by a fabric roll contact drive defibrating roller and feeding it downward to convey the fabric laterally and to feed the fabric to a fabric spreading portion. In the machine, a cloth body sliding contact member is provided below the cloth body receiving position of the cloth body conveying means, and a cloth body sliding contact member that abuts when the cloth body hanging on the cloth body conveying means moves laterally in the conveying direction, From the state where the cloth body is conveyed by the cloth body conveying means to the appropriate position under the cloth body sliding contact member, the feeding of the cloth body to the cloth body conveying means is stopped for a set time, and the cloth body is conveyed. A method for removing wrinkles on a cloth in a spreading machine, which is characterized in that only a conveying means is operated. 2. The cloth sliding contact member is configured to be positionally switchable in a perspective direction with respect to the surface of the cloth conveying means, and the cloth conveying under the cloth sliding contact member is carried out to an appropriate position. When the cloth body is conveyed by means, the cloth body sliding contact member is separated from the cloth body conveying means, and the cloth body sliding contact member approaches the cloth body conveying means side before operating only the cloth body conveying means. A method for removing cloth wrinkles in a fabric spreading machine according to claim 5, characterized in that