JPS63277158A - Cloth body wrinkle eliminating method in spreader - Google Patents

Abstract

PURPOSE:To surely eliminate longitudinal wrinkles in a cloth body tip are automatically by stopping the delivery of a cloth body to a cloth body conveying device as long as the setting time from a state of conveying the cloth body up to a proper position in getting under a cloth body sliding contact member, and operating the cloth body conveying device only. CONSTITUTION:When a cloth body T is moved up to a proper position after getting under a cloth body sliding contact member 13, delivery of the cloth body T to a cloth body conveying device 9 is once stopped. Afterward, only this conveying device 9 is operated as long as the setting time, therefore only a cloth body part being mounted on the conveying device 9 is moved in the conveying direction, and it comes into contact with the cloth body sliding contact member 13. With conveying action of the conveying device 9 after that, a cloth body part ranging from a spot contacting the sliding contact member 13 to a cloth body tip is pulled in the conveying direction, whereby even if there is any partial slackness (wrinkles) in the longitudinal direction, this slackness (wrinkles) is eliminated owing to tensile action in the conveying direction. Afterward, delivery of the cloth body T to the conveying device 9 and conveyance of the cloth body T by the conveying device 9 both are carried out, thus the cloth body T is fed into an extension part.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a method for cutting fabrics unrolled from a roll of fabric from a loom into required lengths and stacking them on a workbench for processing such as cutting. In a spreading machine that performs spreading operations such as folding and folding, when setting a fabric unwound from a roll of fabric to the spreading section before the start of spreading, the The present invention relates to a method for automatically removing longitudinal wrinkles.

(Prior art and its problems) In the above-mentioned spreading machine, as a preparatory work before the start of spreading, the original fabric roll is transferred to a predetermined position, and the spreading part is transferred from the original fabric roll to a predetermined position. It is necessary to centrifuge the material pulled out from the raw fabric roll along the cloth moving path up to the point where the cloth moves.

If a worker accompanies the setting of the fabric from the raw fabric roll to the spreading part, the worker must make sure that there is no undue slack (wrinkle) in the length direction in the tip area of the fabric. It is possible to set the fabric by placing a hand on it and pulling it in the length direction, but if such an artificial method of removing wrinkles was used, it would be difficult to automate the preparation work before the start of spreading. I can't. Moreover, if there is any slack (wrinkle) in the length direction in the tip area of the set material, it will not be possible to perform the later spreading action well. Wrinkles must be completely removed.

(Means for Solving the Problems) In view of the above-mentioned conventional problems, the present invention provides a method that can automatically and reliably remove wrinkles in the longitudinal direction of the tip region of a cloth body without manual intervention. The feature is that the material is fed out by the unraveling roller for contact drive of the raw material roll, and the material that is sent out downward is conveyed sideways, and the material is sent to the fabric spreading section. In a spreading machine equipped with a means, a cloth slider is provided on the downstream side of the cloth receiving position of the cloth conveying means, with which an object that hangs down onto the cloth conveying means comes into contact when it moves laterally in the conveying direction. A contacting member is constructed, and from a state in which the object is conveyed by the cloth conveying means by passing under the cloth sliding contact member to an appropriate position, the object is sent to the cloth conveying means for a set time. The point is that the cloth conveying means is stopped and only the cloth conveying means is operated.

(Function of the invention) The material let out by the unraveling roller transfers onto the cloth conveying means, is conveyed sideways by the cloth conveying means, and is sent to the cloth spreading section. When the fabric sliding contact member is moved to an appropriate position, the material is sent to the fabric conveying means, that is, the unraveling roller is driven, and the movement from the unraveling roller to the fabric conveying means is carried out. If another conveyance means is being used in between, the drive of that conveyance means is temporarily stopped. The timing to stop sending out the tangible object to the cloth conveying means may be when a set time has elapsed, or it may be when the detector detects the tip of the tangible object being conveyed by the cloth conveying means. I can do it.

After the feeding of the tangible material to the cloth conveying means is stopped as described above, only the cloth conveying means is operated for a set time, but as a result, the cloth placed on the cloth conveying means is Only the portion (the tip 9M region) moves in the conveying direction, and the cloth portion hanging down on the cloth conveying means moves in the conveying direction and comes into contact with the cloth sliding member. The subsequent conveyance action of the cloth conveying means causes the cloth portion from the part that contacts the cloth sliding member to the tip of the cloth, that is, the cloth portion resting on the cloth conveyance means (the tip area) is pulled in the conveyance direction, and even if there is partial slack (wrinkle) in the length direction, the slack (wrinkle) is removed by the tensile action in the conveyance direction.

When the wrinkle removal action in the longitudinal direction of the material is completed by operating only the cloth material conveying means for a set time, the material is sent to the cloth material conveying means and the material is conveyed by the cloth material conveying means. By doing so, it is possible to send the substance to the spreading part.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

In Fig. 1, 1 is the main body of the spreading machine, which can be moved back and forth on the spreading workbench 2 in the length direction of the workbench 2, and the upper part can be moved in the left and right directions. A transversely movable table 3 is provided, and a turntable 5 is supported on the transversely movable table 3, which can be rotated forward and backward by 180 degrees around a vertical axis 4. On this turntable 5, there is a pair of left and right fabric roll support (slanted rails 6) and a fabric roll R whose both ends are supported by the inclined rails 6 via a core axis C. 8 is an auxiliary belt conveyor provided on the horizontal movement table 3, and 9 is a cloth conveying means provided on the main body 1 of the spreading machine, which is connected to the main belt conveyor 10 and the main belt conveyor 10. It consists of a feed roller 11 which is pivotally supported adjacent to the terminal end of the belt conveyor 10 and is operatively connected to the main belt conveyor 10.

Reference numeral 12 denotes a fabric spreading section disposed at the lower rear end of the fabric spreading machine main body 1, which incorporates a conventionally known fabric body front and back sorting and cutting device. Ml is a Lumo-9-1 that rotationally drives the unraveling roller 7.
M2 is a motor that drives the auxiliary belt conveyor 8; M3 is a motor that drives the auxiliary belt conveyor 8;
is a motor that drives the cloth conveying means 9 (main belt conveyor 10 and feeding roller 11).

As shown in FIGS. 2 and 3, a fabric sliding contact member 13 is disposed on the upper side of the main belt conveyor 10 on the lower side in the conveyance direction of the main belt conveyor 10 than the position directly below the terminal end of the auxiliary belt conveyor 8. It is set up. This cloth sliding contact member 1
3 consists of a round rod-shaped body located parallel to the left-right width direction of the main belt conveyor 10, and is supported by concentric support shafts 14 on the side frames 1a of the spreading machine main body on both left and right sides for free movement (up and down). It is installed between the tips of a pair of left and right swing arms 15,
The swing arm 15 moves up and down between the lower limit position A, which is located with a small gap between it and the surface of the main belt conveyor 10, and the upper limit position B, which is located above this. It can move and is normally stabilized at the lowering limit position A due to gravity. Reference numeral 16 denotes a balancer pipe material installed between the rear ends of the TL automatic arm 15 on the opposite side of the support shaft 14 to the side where the cloth body sliding contact member 13 is located. R
Reference numeral 81 denotes a rotary solenoid that switches the idle sliding contact member 13 to the upper limit position B, and the drive lever 17, which is attached to one side frame 1a of the main body of the spreading machine and rotates upward when energized, moves to the upper limit position B. The movable arm 15 is pushed up against gravity. Note that a stopper that restricts the swinging range of the tS moving arm 15 is not shown.

In addition, as shown in FIGS. 2 and 3, the spreading machine main body 1 includes:
A cloth body presence/absence detector Sl using a photoelectric switch detects a cloth T hanging down from the rear end of the auxiliary heald conveyor 8 onto the main belt conveyor 10, and a cloth body presence/absence detector Sl using a photoelectric switch detects the cloth T hanging down from the rear end of the auxiliary heald conveyor 8 onto the main belt conveyor 10; The cloth body sliding contact member 1 from the normal drooping area 18
A cloth body tension detector S2 using a photoelectric switch detects that the cloth body T has come off to a certain side of the normal drooping area 1.
A cloth body slack detector S using a photoelectric switch detects that the cloth body sliding contact member 13 has come off from the side opposite to the side where the cloth body sliding contact member 13 is located.
3 and a tangible edge alignment detector S4 for detecting that one side of the cloth T is in a fixed position are arranged side by side in the left and right width direction. Furthermore, as shown in FIG.
A physical training/absence detector S5 for detecting the cloth T is provided at the terminal position of the cloth drooping movement path from the cloth T to the cloth spreading part 12.

The detection signals from each of these detectors 5l-35 are inputted to the control means 19, which is a combination of a microcomputer, various controllers, etc., as shown in FIG. The motors M1 to M3 and the rotary solenoid R3I 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 support inclined rail 6 via its core axis C, and the fabric T is transferred from the original fabric roll R onto the unraveling roller 7. is pulled out, the unraveling roller 7 is driven by the motor M1, and the auxiliary belt conveyor 8 is driven by the motor M2.
driven by. The cloth T fed out from the unraveling roller 7 hangs down and moves to a position near the terminal end on the auxiliary belt conveyor 8, and is conveyed to the main belt conveyor by the auxiliary belt conveyor 8 at the same speed as the unwinding speed from the unraveling roller 7. It is sent sideways towards 10. When the front and back sides of the cloth T are reversed, the turntable 5 is reversed by 180 degrees, so the position where the cloth T is transferred onto the auxiliary belt conveyor 8 changes to near the starting end of the auxiliary belt conveyor 8.

When the leading end of the cloth T hangs down from the terminal end of the auxiliary belt conveyor 8, it is detected by the cloth presence detector Sl before it is transferred onto the main belt conveyor 10. The unraveling roller 7 and the auxiliary belt conveyor 8 are automatically stopped by the cloth body detection No. When the side of the cloth T hanging down reaches a fixed position facing the tangible edge alignment detector S4, the detector S4
When turned on, the lateral movement of the lateral movement table 3 is stopped by the detection signal from the detector S4.

When the edge aligning action of this tangible T is completed, the unraveling roller 7, the auxiliary belt conveyor 8, the main belt conveyor 10,
The feeding rollers 11 are driven by the respective motors Ml-M3 to feed the tangible T fed out from the raw fabric roll R to the fabric spreading section 12. In this process, as shown in the flowchart of FIG. In this procedure, wrinkles are removed in the longitudinal direction of the tangible T.

That is, as shown in the imaginary line in FIG. 2 and in FIG.
The cloth body sliding contact member 1 is energized by energizing the tally solenoid R3I.
3 from the lower limit position A to the upper limit position B, and the gap between the cloth body sliding contact member 13 and the main heald conveyor 10 is increased to make it easier for the object T to pass between the two, and then The unraveling roller 7, the auxiliary belt conveyor 8, the main belt conveyor 10, and the feeding roller 11 are operated by a motor M1.
~ When driven by M3, the detector S as shown in FIG.
The tangible T stopped at the position where the tip is detected by l
is sent out again by the unraveling roller 7 and the auxiliary belt conveyor 8, and after being transferred onto the main belt conveyor 10, it passes under the fabric sliding contact member 13 and heads onto the feeding roller 11, as shown in FIG. transported.

So, after starting the motors Ml-M3 as described above,
The time (l) required for the tip of the tangible T to be conveyed to the vicinity of the feeding roller 11 is set in advance, and when this set time t1 has elapsed, the rotary solenoid R3l is demagnetized as shown by the solid line in Figure 2. The cloth body contact member 13
is lowered and returned by gravity from the upper limit position B to the lower limit position A, and is brought close to the tangible T on the surface of the main belt conveyor 10. Furthermore, motor M1. Only the power supply to M2 is cut off, the unraveling roller 7 and the auxiliary belt conveyor 8 are stopped, and only the cloth conveying means 9 (main heald conveyor 10 and feeding roller 11) is continuously driven by the motor M3.

As a result, as shown in FIG. 8, the part a on the main heald conveyor 10 of the tangible T moves in the conveying direction, so that it hangs down from the terminal end of the auxiliary belt conveyor 8 onto the main heald conveyor 10. The cloth body part moving in the transport direction of the main belt conveyor 10 and comes into contact with the cloth body sliding contact member 13. After this, the movement of the cloth body molecule a in the conveying direction is blocked by the cloth body sliding contact member 13, so that the main belt conveyor 10 and the feed-out roller 11 are rotated in sliding contact with the cloth body molecule a. The body molecule a is pulled in the transport direction. As a result, even if there is slack (wrinkle) in the cloth body molecule a in the length direction, the slack is automatically removed and the fabric becomes appropriately taut.

The time t2 for the above-mentioned wrinkle removal action, that is, the motor M
3, the time t2 during which only the fabric conveying means 9 is driven is set in advance, and when this set time t2 has elapsed, the power to the motor M3 is cut off, and the fabric conveying means 9 (mainly the heath conveyor) is turned off. By stopping the rollers 10 and 11), the wrinkle removal action in the tangible length direction is completed. The set time t2 for the wrinkle removal action is a tangible T
It is desirable that the configuration be such that it can be arbitrarily adjusted depending on the type of the item. In addition, although the wrinkle removal action was set to start when the set time t1 had elapsed, a detector was used to detect when the tip of the tangible T reached the vicinity of the feeding roller 11, and when this detector was turned on, The wrinkle removing action may also be started.

Incidentally, as shown in the flowchart of FIG. 5, when the set time t2 for the wrinkle removal action has elapsed, the motor M3
The unraveling roller 7 and the auxiliary belt conveyor 8, which had been stopped before, are moved to the motor M1. It is also possible to drive again by M2 and continue to pay out and transport the tangible T.

In any case, in the end, the tip of the tangible T is the extending part 1.
2, that is, the position detected by the cloth presence/absence detector S5, and the motors M1 to M3 are de-energized by the detection signal of the detector S5, and the material T is fed out and the cloth is spread. Settings up to 12 will be completed.

The fabric spreading operation is performed by a conventionally known method, and during this fabric spreading operation, the fabric T unwound from the raw fabric roll R is sent to the fabric spreading section 12 by the fabric conveying means 9.
When the speed at which the fabric is fed from the auxiliary heald conveyor 8 onto the fabric conveyance means 9 and the speed at which the fabric is moved on the fabric conveyance means 9 substantially match, the speed at which the fabric is fed from the auxiliary heald conveyor 8 onto the fabric conveyance means 9 is substantially the same as the speed at which the fabric is transferred from the auxiliary heald conveyor 8 to the main heald conveyor The cloth T hanging down above 10 is moving within a normal hanging area 18 having a constant width in the front-rear direction shown in FIG.

If the speed of movement of the fabric on the fabric conveying means 9 is faster than the speed of feeding the fabric from the auxiliary heald conveyor 8 onto the fabric conveying means 9, the fabric T hanging down from the auxiliary heald conveyor 8 When the cloth body T is gradually pulled toward the side where the cloth body sliding contact member 13 is located and is removed from the normal hanging region 18 to the side where the cloth body sliding contact member 13 is located, the cloth body tension detector S2 detects the cloth body T. Turn on. Conversely, if the speed of movement of the fabric on the fabric conveying means 9 is slower than the speed of feeding the fabric from the auxiliary heald conveyor 8 onto the fabric conveying means 9, the auxiliary belt conveyor 8
The cloth body T hanging down from the cloth body T gradually loosens in the opposite direction to the side where the cloth body sliding contact member 13 is located, and reaches the normal hanging region 18.
When the cloth body sliding contact member 13 comes off to the side opposite to the side where the cloth body sliding contact member 13 is located, the cloth body slack detector S3 detects the cloth body T and turns on.

However, as shown in the flowchart of FIG. 9, when the fabric tension detector S2 is turned on, the rotational speeds of the motors Ml and M2 are accelerated, and the speed at which the fabric T is fed by the unraveling roller 7 and the auxiliary belt conveyor 8 is increased. is accelerated. Further, when the cloth slackness detector S3 indicates OII, the rotational speed of the motors M1 and M2 is reduced, and the speed at which the cloth T is fed out by the unraveling roller 7 and the auxiliary belt conveyor 8 is reduced. In this way, based on the movement in the conveying direction or the relaxation in the opposite direction of the cloth body molecules hanging down on the cloth conveyance means 9, the speed at which the cloth body T is sent out by the unraveling roller 7 and the auxiliary belt conveyor 8, i.e. By automatically controlling the cloth supply speed to the cloth conveying means 9, the cloth T hanging down from the auxiliary belt conveyor 8 onto the main belt conveyor 10 is always within the normal hanging region 18 having a constant width in the front and rear direction. This adjustment prevents the cloth T from being unduly pulled by the cloth conveying means 9, and from causing the cloth T to loosen and wrinkle on the cloth conveying means 9.

Further, the automatic control of the cloth supply speed also works when the cloth body conveyance is started after the above-described longitudinal wrinkle removal action of the cloth body T has been completed. That is, when the longitudinal wrinkle removal action of the cloth T is completed, the tension is such that the cloth T fed from the auxiliary belt conveyor 8 onto the main heald conveyor 10 contacts the cloth sliding contact member 13, as shown in FIG. Because of this state, the cloth molecules are deviated from the normal hanging region 18 toward the cloth sliding contact member 13 side. Therefore, since the cloth body tension detector S2 is ON,
All the motors M1 to M3 are driven to move the cloth T to the spreading section 1.
2, the driving speed of the unraveling roller 7 and the auxiliary belt conveyor 8 by the motors Ml and M2 is accelerated, and the tension of the cloth T sent out from the auxiliary belt conveyor 8 is released.

After spreading work force 1, the spreading part 1 is moved from the raw roll R to the spreading part 1.
The cloth T remaining in the cloth movement path up to 2 is transferred to the unraveling roller 7, the auxiliary belt conveyor 8, and the cloth transport means 9.
All of them are driven in reverse and rewound onto the original roll R.

Incidentally, when the auxiliary belt conveyor 8 is used as in the embodiment, the hanging position of the cloth onto the cloth conveying means 9 is constant regardless of whether the turntable 5 is reversed. One cloth body sliding contact member 13 disposed at a fixed position with respect to the conveying direction of the cloth body can always operate effectively. Moreover, the presence of this cloth body sliding contact member 13 makes it possible to effectively remove wrinkles in the longitudinal direction of the headrest of the body. When the contacting member 13 is configured to be able to switch its position in the direction of distance from and near the surface of the cloth conveying means 9, the leading end of the cloth is first passed under the cloth sliding contacting member 13 until it reaches an appropriate position. When conveying, the cloth body sliding contact member 13 is separated from the cloth body conveying means 9 to widen the space below the cloth body sliding contact member 13, and the cloth body sliding contact member 13 is moved under the cloth body sliding contact member 13. can be moved reliably and smoothly.

(Effects of the Invention) As described above, according to the method for removing wrinkles from a fabric in a fabric spreading machine of the present invention, wrinkles can be removed during the preparatory work before the start of fabric spreading, in which the fabric is set from the original fabric roll to the fabric spreading section. Since the slack (wrinkles) in the longitudinal direction of the tip region of the cloth body can be automatically removed, the subsequent spreading action can be performed satisfactorily.

Moreover, not only can the number of manpower be reduced, but there is no need for any special mechanical equipment for removing wrinkles, and the preparatory work before the start of spreading can be automated with almost no increase in equipment costs. .

[Brief explanation of the drawing]

Fig. 1 is a schematic side view illustrating the entire spreading machine, Fig. 2 is a vertical side view of the location where the fabric is transferred onto the fabric conveying means, and Fig. 3
The figure is a longitudinal sectional front view of the same location, Figure 4 is a block diagram explaining the control mechanism, Figures 5 and 9 are flowcharts explaining the control method, and Figures 6 to 8 are the front end area of the cloth body. It is a side view explaining the wrinkle removal method. 1... Spreading machine main body, 3... Lateral movement table, 5...
Turntable, 6... Inclined rail for supporting the original fabric roll, 7... Unraveling roller, 8... Auxiliary belt conveyor, 9... Fabric conveyance means, 10... Main belt conveyor, 11. ... Feeding roller, 13... Cloth sliding contact member, 15... Swinging arm, 16... Pipe material for balancer, 17... Drive lever, M1-M3... Motor, 81-S5 ...detector, R3I...rotary solenoid, R...material roll, T...cloth body. Patent Applicant NCA Co., Ltd. No. 3 Diagram 4

Claims (2)

[Claims] (1) A fabric spreading machine equipped with a fabric conveying means that takes over the fabric that is unwound and sent out downward by the unwinding roller for contact driving the raw fabric roll, conveys it sideways, and sends the fabric to the fabric spreading section. A cloth sliding contact member is installed below the cloth receiving position of the cloth conveying means, and comes into contact with the cloth hanging down on the cloth conveying means when the cloth moves laterally in the conveying direction. After the cloth is conveyed by the cloth conveying means under the body sliding contact member to an appropriate position, the cloth conveying means stops feeding the cloth to the cloth conveying means for a set time. A method for removing wrinkles from a cloth in a cloth spreading machine, characterized by operating a chisel. (2) The cloth body sliding contact member is configured to be switchable in position in the direction of distance from and near the surface of the cloth body conveying means, and the cloth body sliding contact member is configured to be able to switch its position in a direction near and far from the surface of the cloth body conveying means, and the cloth body sliding contact member goes under the cloth body sliding contact member and moves the cloth body conveying means to an appropriate position. When conveying the fabric, the fabric sliding contact member is kept separated from the fabric conveying means, and before only the fabric conveying means is operated, the fabric sliding contact member is brought closer to the fabric conveying means. A method for removing wrinkles from a cloth in a cloth spreading machine according to claim 1, wherein the cloth is placed in a cloth spreading machine.