JPH07102266B2 - Conveyance position correction device for long cloth processing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for correcting the transfer position of a cloth, and more particularly to a transfer position correcting apparatus for a long cloth which is continuously transferred as a cloth.

[0002]

2. Description of the Related Art In order to produce a large amount of cloth products, a long cloth is continuously conveyed while being subjected to various processes such as edging. That is, the long cloth is continuously conveyed in various processing machines in a long length until it is divided into products.

Since this long cloth has great flexibility, it is so-called meandering easily during transportation in the processing machine. Therefore, conventionally, various proposals have been made to prevent meandering of a long cloth, as proposed in, for example, Japanese Patent Publication No. 57-17554. The "long length automatic edge sewing machine" disclosed in the above Japanese Patent Publication No. 57-17554 is, as shown in FIG.
"In a device for sewing a long object such as cloth while sewing its edges, a pair of sewing machines 1 and 2 are attached at appropriate intervals substantially at right angles to the running direction. Each of the edge detectors is arranged in front of No. 2, and the sewing machines 1 and 2 and the edge detector are provided side by side on the moving base, and the moving base is set based on a signal emitted from the detector. It is characterized in that the sewing machines 1 and 2 are made to follow the meandering of the long object while being displaced at right angles to the running direction. " Since 2 must be moved, its drive control mechanism is required and the structure becomes complicated. Not only that, but if the meandering of the long cloth is unevenly distributed to one side, the moving base on that side will have to be moved infinitely. This is because the meandering of the long cloth is not positively corrected. The above can be said for the "sewing machine with a meandering control device" proposed in Japanese Patent Publication No. 62-19878.

Therefore, the present inventor has conducted various studies on how to positively correct the position of a long fabric having great flexibility, and as a result, has completed the present invention. Of.

[0005]

SUMMARY OF THE INVENTION The present invention has been made based on the above circumstances, and an object to be solved is to correct the meandering of a long cloth in a processing machine.

It is an object of the present invention to provide a transport position correcting device having a simple structure which can positively correct the position of the processing machine even for a long cloth having great flexibility. Is to be provided by.

[0007]

Means and Actions for Solving the Problems In order to solve the above problems, the means adopted by the present invention will be described with reference to the symbols used in the embodiments. A conveyance position correction device attached to a long cloth processing machine that performs various processing such as edge sewing while conveying the roller, and a roller 23 on which the long cloth W is hooked over its entire width, and the roller 23. A pair of actuating devices 22, 22, which are provided at both ends of the roller and move up and down independently of each other, and the roller 2.
3, an air guide member 24 arranged on the back surface side of the long cloth W conveyed toward 3, and opening to the long cloth side, and an air guide member 2 provided in the air guide member 24 and having a discharge direction.
A plurality of air discharge ports 24a which are divided into left and right ends at a substantially central portion of 4 and a pair of air discharge ports 24a which are respectively disposed on both outer sides of the end edge of the long cloth W conveyed toward the roller 23 and which detect the same. When the long cloth W is deviated from the normal conveying device to the left or right by the detectors 25 and 25, a signal from the detector 25 that detects the deviation causes the detector 25 to move.
The roller 23 is tilted to the side opposite to the direction in which the long cloth W is deviated by operating the actuator 22 located on the opposite side to the air discharge port 24 on this tilted side.
It is a conveyance position correction device 20 "characterized in that air is discharged from a.

That is, the conveying position correcting device 20 according to the present invention is attached to a processing machine such as the automatic edge stitching machine 100 shown in FIG. 1, for example, and a roller on which a long cloth W is hooked. It is made easy to move the one end of the long cloth W to the side moved downward by the actuating device 22 by the actuating device 22, and the air is discharged from the air discharge port 24a on the lowered side of the long cloth W. It is a state in which it is blown from the back surface so that it is in a floating state, so that the conveyance position of the long cloth W itself is positively corrected.

[0009]

The operation of the conveying position correcting device 20 according to the present invention having the above-described structure will be described in the order of conveying the long cloth W. Before that, the conveying position correcting device 20 is attached. The operation of the entire automatic hemming machine 100, which is a long cloth processing machine, will be described. In this automatic hemming machine 100, as shown in FIG. 1, a long cloth W that has been wound or folded is arranged on the left end side in the drawing, and the long cloth W is used to correct the transport position according to the present invention. It is fed through the device 20 onto the first column 11, the direct drive of this feed being provided by the drive roller 26 on the first column 11.

The long cloth W sent to the first support 11 is sent from the right side of the first support 11 in the figure toward the lower side of the base 10, and this transfer is performed by the sewing table 1 having the sewing machine 50.
3 is provided by a main feeding device 30 provided on the left side surface in the drawing. And this long cloth W is the 1st conveyor belt 4
0 is sent to each sewing machine 50, sewing is performed by the sewing machine 50, and then is sent to the second conveyor belt 60 located on the downstream side of the sewing machine 50. A swing arm 70 is provided below the tip of the second conveyor belt 60, and the swing arm 70 swings to the left and right in FIG. It is collected in a folded state.

Now, regarding the transport position correcting device 20 according to the present invention provided on the upper left side of the first support 11 in the drawing, the operation of the transport position correcting device 20 will be described with reference to the schematic diagram shown in FIG. When the long cloth W is being conveyed in a normal state, the roller 23 constituting the conveyance position correcting device 20 is in a substantially horizontal state, and the long cloth suspended on the roller 23 is Both edges of W are not detected by each detector 25. In other words, the long cloth W in this case is conveyed by the drive roller 26 located downstream of the conveying position correction device 20, and the hanging device for the roller 23 is substantially the center of the roller 23. At that position, the long cloth W is drawn toward the roller 23 as shown by the arrow in FIG.

If, for example, the conveyance position of the long cloth W is displaced to the left for some reason, this is detected by the detector 25 shown on the left side of FIG. Actuator 22 shown on the right side of the drawing
A signal is sent to activate the. Each actuating device 22 in the present embodiment is a cylinder that is actuated by air.
2 to the support base 2 as shown in FIG.
2a is lowered by a predetermined amount. As a result, the roller 23 on which the long cloth W is hooked is slightly lowered in its right portion, and the long cloth W can be moved to the right in the figure on the roller 23. Become. That is, the long cloth W is drawn toward the roller 23 by the action of the driving roller 26 and the like, but is prepared so that it can move to the right on the long cloth W inclined to the right depending on the drawing direction. That is what happened.

Therefore, if the long cloth W which has been misaligned continues to be conveyed as it is, it will move to the right eventually, but a certain time is required for that. In this type of automatic hemming machine 100, since the long cloth W is conveyed at high speed (20 m / min or more), it is inconvenient if the misaligned state continues for a certain period of time. If possible, the correction should be done instantly. This operation is performed by the air discharged from the air discharge port 24a provided in the air guide member 24 in the transport position correction device 20 of the present invention.

That is, the transfer position correcting device 20 of the present invention.
In the above, at the same time as the roller 23 starts to incline, a certain amount of air is blown to the back surface side of the long cloth W from the air ejection port 24a opened on the inclining side (here, the right half in FIG. 4). Of. As a result, the roller 23
At the right side portion of the long cloth W hanging on the roller in the figure, the roller 23
The state in which the long cloth W that is about to move to the right side on the roller 23 inclined to the right side immediately moves to the right because of a state in which the cloth is slightly floated or the applied force is reduced. The transport position of the measure cloth W is corrected.

In the transport position adjusting device 20 according to the present invention, each air discharge port 24a is divided into the left and right at the center of the air guide member 24, and the air is discharged only from the air discharge port 24a on the inclined side. As a result, the misaligned long cloth W can be corrected efficiently only at the necessary places, and the amount of air to be discharged can be saved. Therefore, the capacity of the air supply source can be made relatively small, and the configuration of the transport position correction device 20 can be made compact. Further, since the air guide member 24 having the respective air discharge ports 24a is opened only on the back surface side of the long cloth W, the air discharged from the air discharge ports 24a is long.
Is reliably blown to the back surface of the air guide member 24, and each air discharge port 24a discharges air toward both ends at the center of the air guide member 24. It flows toward the end portion, and the movement of the long cloth W is achieved also by this flow.

When the correction of the transport position of the long cloth W is completed,
Since the left side edge of the long cloth W is not detected by the left side detector 25, the detector 25 immediately issues a signal for returning the actuating device 22 on the right side in the drawing to the original position. As a result, the roller 23 returns to the horizontal state, and the long cloth W continues to be conveyed again at its normal position.

Of course, the long cloth W may shift to the right side in FIG. 4, but in this case, the actuating device 22, the air discharge port 24a, the detector 25 and the like which are the reverse of those described above are actuated.
In addition, although the long cloth W is supplied from the lower side toward the roller 23 in FIG. 4 and the like, the method of conveying the long cloth W to the roller 23 is not limited to such a direction. Naturally, for example, when the long cloth W is fed horizontally to the roller 23, the transport position correction device 20 is arranged accordingly.

Further, in the transfer position correcting device 20 of the present embodiment, a so-called air cylinder is adopted as the operating device 22, and the air supply source therefor is each air discharge port 24a.
Since it is common to the supply source of the air discharged from the
As a result, the configuration of the transport position correction device 20 itself is simplified.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a transport position correcting device 20 according to the present invention.
Referring to the embodiment shown in the drawings, FIG. 1 shows a side view of an automatic edge stitching machine 100 which is a long cloth processing machine provided with the transport position correcting device 20. The automatic hemming machine 100 is a sewing machine 50 that performs hemming between a first support 11 and a second support 12 that are provided upright on both sides of a base 10.
The sewing table 13 on which is mounted is provided, and the long cloth W arranged on the left side in the drawing of the base 10 is conveyed onto the first support 11, and then the lower side of the base 10 is passed through, and edge sewing is performed on each sewing machine 50. Is to do. The long cloth W is conveyed to each sewing machine 50 by the conveying force of the sewing machine 50 itself and the sewing table 13 of the sewing machine 50.
The main feeding device 30 provided on the upper left side of the figure and the first conveyor belt 40 arranged between the sewing machines 50 are used. The long cloth W processed by each sewing machine 50 is on the wake side. It is designed to be fed onto the second conveyor belt 60 located at. Then, the long cloth W sent onto the second conveyor belt 60 is accumulated in a state in which it is folded down by the swing arm 70 which is swinging to the left and right in the figure below the tip of the second conveyor belt 60. Is done.

The transport position correcting device 20 according to the present invention is provided on the first support 11 via a support base 21, and as shown in FIGS. One roller 23 mounted, a pair of left and right actuating devices 22 for individually moving both ends of the roller 23, an air guide member 24 arranged substantially parallel to the actuating device 22, and an air guide member 24. And a pair of left and right detectors 25 for detecting the positional deviation state of the long cloth W
It consists of The transport position correcting device 20 according to the present embodiment is configured to supply the long cloth W to the roller 23 from the lower side, and therefore the operation of each operating device 22 is performed by the roller 23. A driving roller 26 for carrying the long cloth W is provided on the first support 11 located on the downstream side of the roller 23. The drive roller 26 is not necessarily required as long as the long cloth W is sufficiently conveyed by other parts of the automatic edge stitching machine 100.

Each actuating device 22 in the present embodiment employs a so-called air cylinder, and as shown in FIGS. 2 and 3, a support base attached to the first support column 11 on the side of the automatic edge stitching machine 100. 22a. Also,
Each operating device 22 is in a state as shown on the left side of FIG. 3 when it is not operating, and when it is operating,
Like the one shown on the right side of FIG. 3, the rod is extended to lower one of the support bases 22a. Each actuator 22
By each support 22a connected to the piston rod of
The roller 23 and the air guide member 24 are supported so as to be parallel to each other, and a support arm 25a having a detector 25 is attached to the support base 21 located below the roller 23 and the air guide member 24. There is. Since the roller 23 is tilted by each actuator 22, one of the actuators 22 (on the right side in FIG. 3) is
Is connected to the support base 21 by a pivot 21a.

The roller 23 is a so-called free roller, which simply changes the conveying direction of the long cloth W. That is,
As shown in FIG. 2, the long cloth W sent from above in the drawing is sent to the right in the drawing, and the contact area with the long cloth W is reduced as much as possible. Since the roller 23 moves the position-shifted long cloth W in the axial direction of the roller 23, the position of the roller 23 is corrected.
It has a smooth surface.

As shown in FIGS. 2 and 3, the air guide member 24 arranged in parallel with the roller 23 has a gutter-like shape in which a cylinder is halved, and its opening is
As shown in FIG. 2, it is directed toward the back surface of the long cloth W being conveyed. As shown in FIG. 3, the air guide member 24 is provided with a plurality of air discharge ports 24a, and the air discharge direction of each air discharge port 24a is approximately in the center of the air guide member 24. So that they are opposite to each other. That is, each air discharge port 24a located on the left side of the air guide member 24 opens toward the left end side of the air guide member 24, and the air discharge port 24 on the right side.
a is open toward the right end side. As described above, by configuring the air guide member 24 and each air discharge port 24a, for example, the air discharged from the left air discharge port 24a gives a discharge force to the left side rear surface of the long cloth W, and By flowing to the left inside the air guide member 24, the long cloth W is moved to the left.

Each of the detectors 25 detects whether or not the edge of the long cloth W has come, and in this embodiment, a so-called optical sensor is used. That is, each detector 25 of the present embodiment is composed of two light emitting parts and light receiving parts.
As shown in FIG. 3, they are attached to the support arm 25a while facing each other. And this support arm 25
As shown in FIG. 2, a is attached to a predetermined position of the support base 21, but in order to prevent the edge of the long cloth W being conveyed from contacting the support arm 25a.
The attachment of the support arm 25a to the support base 21 is as follows.
As shown in FIG. 2, it is performed in an oblique state.

Further, the transport position correcting device 2 according to the present embodiment.
At 0, each of the actuators 22 and the air discharge port 24
The air to be supplied to a is controlled and supplied from a common air supply source 27, as shown in FIG. Thereby, the actuator 22 and the air discharge port 24a
Therefore, the necessary air can be created at one place, and the entire transport position correction device 20 is made compact.

In particular, the transport position correction device 20 according to the present invention.
Can be collectively formed in the state as shown in FIG. 2, and by attaching this to an existing long cloth processing machine, it is possible to easily prevent meandering in the processing machine. Of.

[0027]

As described above in detail, in the present invention,
As illustrated in the above-mentioned embodiment, "a conveyance position correction device attached to a long cloth processing machine which continuously conveys a long cloth W and performs various processing such as edge sewing on the long cloth W, Shaku W
A roller 23 hung over the entire width of the roller 23, a pair of actuating devices 22 and 22 provided at both ends of the roller 23 to move the roller 23 up and down independently, and a long member conveyed toward the roller 23. An air guide member 24 that is arranged on the back side of the cloth W and opens to the long cloth side, and a discharge direction provided on this air guide member 24 is divided into left and right end sides at approximately the center of the air guide member 24. Multiple air outlets 2
4a and a pair of detectors 25, 25, which are respectively arranged on both outer sides of the edge of the long cloth W conveyed toward the roller 23 and detect this, the long cloth W is normal. When the roller 23 is displaced to the left or right from a different transport device, a signal from the detector 25 that detects the deviation causes the actuator 23 located on the opposite side of the detector 25 to operate to cause the roller 23 to move the long cloth W. The air flow is discharged from the air discharge port 24a on the tilted side while being tilted to the side opposite to the direction in which the angle is shifted. " It is possible to provide, with a simple structure, a conveyance position correcting device that can positively correct the position of the processing machine even if the long cloth is included.

[Brief description of drawings]

FIG. 1 is a side view of an automatic edge sewing machine equipped with a conveyance position correction device according to the present invention.

FIG. 2 is an enlarged side view of the automatic edge sewing machine.

FIG. 3 is an enlarged front view of the automatic edge sewing machine.

FIG. 4 is a schematic front view for explaining the operation of the transport position correction device.

FIG. 5 is a perspective view showing a conventional automatic edge sewing machine.

[Explanation of symbols]

 10 Base 20 Transfer Position Corrector 21 Support 22 Actuator 22a Support 23 Roller 24 Air Guide Member 24a Air Discharge Port 25 Detector 25a Support Arm 26 Drive Roller 27 Air Supply Source 30 Main Feeder 40 First Conveyor Belt 50 Sewing machine 60 Second conveyor belt 70 Swing arm 100 Automatic edge sewing machine

Claims (1)

[Claims] 1. A conveyance position correction device attached to a long cloth processing machine for continuously carrying a variety of processing such as edge sewing while continuously conveying a long cloth, the long cloth covering the entire width thereof. A roller to be hung, a pair of operating devices provided at both ends of the roller to independently move the roller up and down, and a roller arranged on the back surface side of the long cloth conveyed toward the roller. An air guide member opening to the long cloth side, a plurality of air discharge ports provided on the air guide member and divided into left and right end sides at the approximate center of the air guide member, and conveyed toward the rollers. And a pair of detectors which are respectively arranged on both outer sides of the edges of the coming long cloth to detect it, and when the long cloth deviates to the left or right from the normal conveying device, Is detected by the signal from the detector. By activating the actuating device located on the side opposite to the detector, the roller is inclined to the side opposite to the direction in which the long cloth is displaced, and air is ejected from the air ejection port on the inclined side. A transport position correction device characterized in that the transport position is corrected.