JPH07313769A - Position matching device for fabric - Google Patents

Abstract

PURPOSE:To provide the position matching device for fabric with which two pieces of fabric can be vertically overlapped in the state of shifting their edges for a fixed amount. CONSTITUTION:An upper sensor 12A for detecting an edge 2a of upper fabric 2A and a lower sensor 12B for detecting an edge 2b of lower fabric 2B can be mutually independently moved by upper and lower sensor moving means. Concerning the upper and lower sensor moving means, pinions 14A and 14B fixed to rotary shafts 13a and 13b of respective motors 13A and 13B installed at those respective sensor moving means are respectively engaged with respective racks 15A and 15B provided integrally with the respective upper and lower sensors 12A and 12B at the back of those respective sensors 12A and 12B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fabric aligning device for aligning two fabrics which are sent to a sewing machine or the like in a vertically stacked state, and particularly to a fabric aligning device for sewing Japanese clothes. The present invention relates to a device suitable for application when stitches are made by shifting edges.

[0002]

2. Description of the Related Art Conventionally, as a fabric position aligning device, one having a structure as shown in FIG. 9 has been known. The alignment device 1 includes the edges 2a, 2 of the upper cloth 2A and the lower cloth 2B.
The upper sensor 3A and the lower sensor 3B for detecting b respectively are fixed to the corresponding upper and lower portions, and the integrated sensor unit 3 and the upper cloth 2A and the lower cloth 2B are respectively fed in the cloth feeding direction (in FIG. The upper manipulator 4A and the lower manipulator 4B are moved in the crossing direction (the left and right direction in FIG. 9) of the cloth from the front side to the back side. This alignment device 1
To the sewing needle 5 of the sewing machine (not shown)
It is placed on the front side in the direction of sending 2B.

While the upper and lower cloths 2A and 2B are being sewn together, the upper and lower sensors 3A and 3B are placed on the upper cloth 2 respectively.
The edges 2a of A and the edge 2b of the lower cloth 2B are individually detected, and when the sensors 3A and 3B are turned on (ON), the pulse motors 4a and 4b of the manipulators 4A and 4B are rotated in the forward direction, whereby the manipulator 4A is rotated. , 4B roller 4
The c and 4d are rotated in the forward direction via the belts 4e and 4f to increase the sewing allowance (the distance from the edges 2a and 2b of the cloths 2A and 2B to the sewing needle 5).
a and 2b are brought closer to each other by the alignment device. on the other hand,
When the sensors 3A and 3B are turned off,
The reverse rotation of the pulse motors 4a and 4b causes the reverse rotation of the rollers 4c and 4d, and the edges 2a and 2b of the cloths 2A and 2B are moved further away from the aligning device so that the seam allowance is reduced. In this way, the upper and lower fabrics 2A,
By finely adjusting the position of 2B individually in the crossing direction of the cloth feeding direction, the corresponding edges 2 of the upper and lower cloths 2A, 2B can be adjusted.
It is controlled so that a and 2b are aligned and the seam allowance is constant along the edges 2a and 2b.

[0004]

However, in the above-mentioned conventional cloth aligning apparatus 1, since the upper sensor 3A and the lower sensor 3B are fixed to the sensor unit 3, the sensor unit as shown by arrow A in FIG. Although it is possible to increase / decrease the seam allowances of the upper and lower fabrics 2A and 2B collectively by moving them by 3, it is impossible to individually set the seam allowance of the upper cloth 2A and the lower cloth 2B. there were. Therefore, the use of the positioning device 1 enables the sewing allowance amount of the upper cloth 2A and the sewing allowance amount of the lower cloth 2B, which are required in the sewing of the Japanese clothes, which are being attempted to be mass-produced using the industrial sewing machine in recent years. There was an inconvenience that it was not possible to deal with so-called shift stitching, in which

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fabric aligning device capable of stacking two fabrics on top of each other with their edges displaced by a certain amount. I am trying.

[0006]

In order to achieve the above object, the invention according to claim 1 is an upper cloth of two cloths which are fed in the same cloth feeding direction in a state of being piled up and down. Of the upper cloth is detected by an upper sensor, and the upper cloth is moved in a direction intersecting with the cloth feeding direction based on the detection information from the upper sensor, and the edge of the lower cloth of the two cloths is lowered. The lower cloth is detected by a sensor, and based on the detection information from the lower sensor, the lower cloth is moved in the crossing direction of the cloth feeding direction to align the corresponding edges of the upper cloth and the lower cloth. In a fabric alignment device, an upper sensor moving unit that can move the upper sensor independently of the lower sensor in a cross direction of the cloth feed direction, and the lower sensor in the cross direction of the cloth feed direction. From Germany And wherein by providing the lower sensor moving means capable of moving.

[0007] Specifically, as in the invention described in claim 2, the upper sensor moving means and the lower sensor moving means are integrated with the upper sensor and the lower sensor, respectively, behind the upper sensor and the lower sensor, respectively. It is also possible that each rack provided specifically has a pinion fixed to the rotation shaft of each motor provided in each of the sensor moving means and meshed with each rack.

[0008]

According to the cloth alignment apparatus of the present invention,
An upper sensor moving means capable of moving the upper sensor for detecting the edge of the upper cloth independently of the lower sensor; and a lower sensor moving means capable of moving the lower sensor for detecting the edge of the lower cloth independently of the upper sensor. Since it has, it is possible to set the sewing allowance of the upper cloth and the sewing allowance of the lower cloth separately. Therefore, by using this aligning device, the two cloths shift their edges by a certain amount. In this state, the sheets can be stacked one above the other and sent to a sewing machine or the like, and the shift stitch is automatically performed.

Further, the upper sensor moving means and the lower sensor moving means are provided on the respective racks integrally provided with the respective sensors behind the upper sensor and the lower sensor, respectively. Since the pinion fixed to the rotary shaft of each motor provided is meshed with each other, the upper and lower sensors can be moved independently of each other with a simple configuration.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the cloth aligning apparatus according to the present invention will be described below with reference to FIGS. Among them, FIG. 1 is a perspective view of a main part of a state in which a fabric alignment device according to the present invention is attached to a sewing machine, and FIGS. 2 to 4 are schematic diagrams showing an example of a fabric alignment device according to the present invention. 5 to 7 are perspective views showing a sewn product sewn by using the fabric position adjusting device according to the present invention, and FIG. 8 is a flow chart showing an example of a flow of setting process of the sewing allowance amount before the start of sewing. .

As shown in FIG. 1, the cloth aligning apparatus 100 includes a sensor section 10 capable of detecting the positions of respective edges 2a and 2b of an upper cloth 2A and a lower cloth 2B which are vertically stacked, and a sensor thereof. A cloth moving means 20 is provided for moving the upper cloth 2A and the lower cloth 2B in a direction intersecting with the direction in which they are fed (the direction from the right front side to the left back side in the figure) based on the detection information from the section 10. ing. The sensor unit 10 is capable of individually setting the sewing allowance of the upper cloth 2A and the sewing allowance of the lower cloth 2B. As shown in FIG. 1, the upper cloth 2A and the lower cloth 2B are displaced from each other. It can be aligned.

When the positioning device 100 is attached to the sewing machine 200, for example, the sensor portion 10 and the cloth moving means 20 are positioned closer to the front side in the cloth feeding direction than the needle drop position of the sewing needle 5 of the sewing machine 200. Arranged to do so. Thereby, the upper cloth 2A and the lower cloth 2B are sewn together by the sewing needle 5 and a thread (not shown) after the respective seam allowances are individually adjusted by the positioning device 100. In FIG. 1, 201 is an emergency stop switch of the sewing machine 200, and 202 is a start / halfway stop switch of the sewing machine 200. These are an emergency stop switch and a start / halfway stop switch of the positioning device 100 during sewing, respectively. Also serves as.

As shown in FIGS. 2 to 4, the sensor portion 10 intersects with the cloth feeding direction (in FIGS. 2 to 4, the cloths 2A and 2B are fed from the front side to the back side of each drawing). A pair of upper and lower sensor units 11A and 11B that are movable independently of each other (in FIGS. 2 to 4 in the left-right direction of each drawing).
have.

The upper sensor unit 11A has an upper sensor 12A near the front end thereof, and an upper sensor moving means for moving the sensor unit 11A itself in the above-mentioned crossing direction in the latter half portion. Similarly,
The lower sensor unit 11B also has a lower sensor 12B near the front end, and a lower sensor moving means for moving the sensor unit 11B itself in the above-described crossing direction in the latter half portion.

The upper sensor moving means has a motor 13A for moving the sensor unit 11A forward and backward.
The pinion 14A is fixed so as to rotate integrally with the rotary shaft 13a of the motor 13A.
Further, the pinion 14A is meshed with a rack 15A integrally provided behind the upper sensor 12A, and via the rack 15A and the pinion 14A,
The rotational driving force of the motor 13A is transmitted to the sensor unit 11A as the driving force for moving back and forth.

Similarly, the lower sensor moving means has a motor 13B for moving the sensor unit 11B forward and backward, and the rotational driving force of the motor 13B is transferred to the motor 13B.
The driving force for the forward / backward movement is transmitted to the sensor unit 11B via a pinion 14B fixed to the rotating shaft 13b of B and a rack 15B integrally provided behind the lower sensor 12B.

The motors 13A and 13B are composed of, for example, pulse motors, and are used for inputting respective set values of the seam allowance amount (top seam allowance amount) m of the upper cloth 2A and the seam allowance amount (under seam allowance amount) n of the lower cloth 2B. Each sensor unit 1 corresponding to each set value input from the operation panel (not shown) of the
It is driven so as to move 1A and 11B. The drive of the pulse motor is controlled by a computer or the like. Each of the sensor units 11 is driven by driving these motors 13A and 13B, that is, by setting the upper stitch allowances m and n.
The movements of A and 11B are performed before the sewing operation by the sewing machine 200 is started.

The state shown in FIG. 2 is a case where the upper sewing allowance m and the lower sewing allowance n are equal (m = n), and as shown in FIG. 5, the edges 2a and 2b of the upper cloth 2A and the lower cloth 2B are They are sewn together so that they fit together. The state of FIG. 3 is a case where the upper stitching allowance m is larger than the lower stitching allowance n (m> n), and the edge 2a of the upper cloth 2A projects more than the edge 2b of the lower cloth 2B as shown in FIG. Are sewn together. The state of FIG. 4 is a case where the upper sewing allowance m is smaller than the lower sewing allowance n (m <n),
As shown in FIG. 7, the edge 2b of the lower cloth 2B is the edge 2a of the upper cloth 2A.
It is sewn so that it may be projected more than.

The sensors 12A and 12B are shown in FIGS.
As shown in FIG. 5, each of the light emitting elements and the light receiving elements, which are not shown in the figure, and the reflecting plates 16A and 16B integrated with the sensor units 11A and 11B, respectively, are configured by optical sensors like the conventional device. Have The edge 2a of the upper cloth 2A is inserted between the upper sensor 12A and the reflector 16A, while the edge 2a of the lower cloth 2B is inserted.
b is inserted between the lower sensor 12B and the reflector 16B. The reflection plates 16A and 16B also divide the upper cloth 2A and the lower cloth 2B and also serve as separation plates.

When the upper cloth 2A is not present at the detection position of the upper sensor 12A, the detection light emitted from the light emitting element is reflected by the reflecting plate 16A and enters the light receiving element as in the conventional case, and the upper sensor 12A is turned on ( ON). At this time, the pulse motor 22A of the upper manipulator 21A of the cloth moving means 20 composed of the pair of upper and lower manipulators 21A and 21B is normally rotated. As a result, the roller 23A of the upper manipulator 21A is positively rotated via the belt 24A, the edge 2a of the upper cloth 2A reaches the detection position of the upper sensor 12A and blocks the detection light, and the upper sensor 12A is turned off. Up to this, the upper cloth 2A is moved so that its edge 2a approaches the main alignment device 100.

On the other hand, when the upper cloth 2A is located at the detection position of the upper sensor 12A, the detection light emitted from the light emitting element is blocked by the upper cloth 2A and does not reach the light receiving element, so that the upper sensor 12A is turned off. Become. At this time, the pulse motor 22
A is rotated in the reverse direction. As a result, the roller 23A is rotated in the reverse direction, and the upper cloth 2A does not block the detection light and the upper sensor 12A is turned on until the upper cloth 2A turns on the edge 2a.
a is moved away from the alignment device 100.

When the lower cloth 2B is moved by the lower manipulator 21B, the upper cloth 2 is moved by the upper manipulator 21A described above.
It is similar to the movement of A. That is, when the lower cloth 2B is not present at the detection position of the lower sensor 12B, the lower sensor 12B is turned on and the pulse motor 22 of the lower manipulator 21B is turned on.
B is rotated forward. Thereby, the lower manipulator 21
The roller 23B of B is positively rotated via the belt 24B,
The lower cloth 2B is moved so that its edge 2b approaches the main alignment device 100 until the lower sensor 12B is turned off by the edge 2b of the lower cloth 2B blocking the detection light.

On the other hand, when the lower cloth 2B is at the detection position of the lower sensor 12B, the lower sensor 12B is turned off,
The pulse motor 22B is reversely rotated. As a result, the roller 23B is rotated in the reverse direction, and the lower cloth 2B keeps its edge 2b away from the main alignment device 100 until the lower sensor 12B is turned on by the edge 2b of the lower cloth 2B not blocking the detection light. Be moved.

Each of the above manipulators 21A and 21B
The upper cloth 2A and the lower cloth 2B are continuously moved by the sewing machine 200 during the sewing operation.

Further, in this embodiment, the guide plate 17A for guiding the insertion of the upper cloth 2A includes the upper sensor 12A and the reflection plate 1.
A guide plate 17B that is provided integrally with the sensor unit 11A between 6A and 6A, and that guides the insertion of the lower cloth 2B is integrated with the sensor unit 11B between the lower sensor 12B and the reflection plate 16B. It is provided by being converted. A light transmitting window portion (light transmitting portion) for transmitting the detection light of the sensor is provided at a location corresponding to each sensor 12A, 12B of each of the guide plates 17A, 17B.

An example of the flow of the process of setting the upper and lower seam allowances, the seam allowances m and n in the fabric position adjusting device 100 configured as described above will be described with reference to FIG. This setting process is a process performed before the start of the sewing operation for sewing the upper cloth 2A and the lower cloth 2B. First, the power of the positioning device 100 is turned on to set the upper sewing allowance amount m and the lower sewing allowance amount n. Each set value is input from an input operation panel or the like (step S1).

The motor 13A for moving the upper sensor 12A and the motor 13B for moving the lower sensor 12B are driven based on the input set values of the respective seam allowances m, n (step S2). And the motor 13A
Is stopped when the distance between the sewing needle 5 of the sewing machine 200 and the edge 2a of the upper cloth 2A matches the upper sewing allowance m input in step S1, and the motor 13B causes the sewing needle 5 and the lower cloth 2 to move.
When the distance between B and the edge 2b matches the underlaying allowance amount n, the process is stopped (step S3).

After the motors 13A and 13B are stopped, the upper cloth 2A is overlaid on the lower cloth 2B, and the sewing start portions of the edges 2a and 2b of the upper cloth 2A are positioned on the sensor portion 10 of the main positioning device 100 (step S4). ), The start / halfway stop switch 202 of the sewing machine 200 is pressed to operate the sewing machine 200 to start the sewing operation (step S5). When the sewing operation is started, the upper cloth 2A and the lower cloth by each of the manipulators 21A and 21B described above until the sewing operation is completed or the emergency stop switch 201 or the start / middle stop switch 202 of the sewing machine 200 is pressed. 2B
The respective seam allowances are adjusted.

The feeding of the upper cloth 2A and the lower cloth 2B in the cloth feeding direction during the sewing operation is well known in a general sewing machine, and an upper feed mechanism such as an upper feed dog for feeding the upper cloth 2A and a lower feed mechanism. This is performed by a lower feed mechanism such as a lower feed tooth that feeds the cloth 2B. These upper feed mechanism and lower feed mechanism,
It may be provided in the sewing machine 200 or in the fabric alignment device 100.

According to the above embodiment, the upper sensor moving means for moving the upper sensor 12A independently of the lower sensor 12B and the lower sensor moving means for moving the lower sensor 12B independently of the upper sensor 12A are provided. Since they are provided, the upper sensor 12A and the lower sensor 12B can be moved independently of each other by the upper and lower sensor moving means. Therefore, the sewing allowance m of the upper cloth 2A and the sewing allowance n of the lower cloth 2B are n. And can be set individually. Therefore, by using this aligning device 100, the two cloths 2A and 2B are separated from their edges 2a and 2a.
It is possible to send b to the sewing machine 200 in a vertically shifted state with a certain amount of shift, and to automatically perform shift stitching, which is the sewing method required when mass-producing Kimono using an industrial sewing machine. You can

Further, since the upper sensor moving means and the lower sensor moving means are composed of the motors 13A and 13B, the pinions 14A and 14B, and the racks 15A and 15B, respectively, the upper and lower sensors 12 have a simple structure.
It is possible to realize the independent movement of A and 12B.

In the above embodiment, the upper sensor moving means and the lower sensor moving means are motors 13A and 13B, pinions 14A and 14B, and rack 1, respectively.
5A and 15B are described, but the invention is not limited to this, and any structure may be used as long as the sensor unit 11A and the sensor unit 11B can be moved forward and backward independently of each other. Good.

Further, in the above embodiment, the cloth alignment device 100 is attached to the sewing machine 200, and the upper cloth 2
Although the case where A and the lower cloth 2B are sewn together by the sewing machine 200 has been described, the present invention is not limited to this, and the present invention is not limited to welding the upper cloth 2A and the lower cloth 2B or bonding them with an adhesive or the like. It can also be applied to the case where they are attached with adhesive tape or the like.

[0034]

According to the cloth aligning apparatus of the present invention, the upper sensor for detecting the edge of the upper cloth and the lower sensor for detecting the edge of the lower cloth are provided by the upper sensor moving means and the lower sensor moving means. Since they can be moved independently of each other, the seam allowance of the upper cloth and the seam allowance of the lower cloth can be individually set. Therefore, by using this aligning device, the two cloths are vertically overlapped with their edges displaced by a certain amount and sent to the sewing machine or the like, so that the shift stitch is automatically performed. This facilitates the elimination of the conventional inconvenience of being unable to handle shift stitching when mass-producing Japanese clothes using an industrial sewing machine.

Further, the upper sensor moving means and the lower sensor moving means are respectively provided on the respective racks integrally provided with the respective sensors behind the upper sensor and the lower sensor, respectively. Since the pinion fixed to the rotary shaft of each motor provided is meshed with each other, the upper and lower sensors can be moved independently of each other with a simple configuration.

[Brief description of drawings]

FIG. 1 is a perspective view of essential parts showing a state in which a fabric positioning device according to the present invention is attached to a sewing machine.

FIG. 2 is a schematic view showing an example of a fabric alignment apparatus according to the present invention.

FIG. 3 is a schematic view showing an example of a fabric alignment apparatus according to the present invention.

FIG. 4 is a schematic view showing an example of a fabric alignment apparatus according to the present invention.

FIG. 5 is a perspective view showing a sewn product sewn using the fabric position adjusting device in the state of FIG. 2;

FIG. 6 is a perspective view showing a sewn product sewn using the cloth position adjusting device in the state of FIG. 3;

FIG. 7 is a perspective view showing a sewn product sewn using the fabric position adjusting device in the state of FIG. 4;

FIG. 8 is a flowchart showing an example of a flow of a process for setting a sewing allowance amount before the start of sewing.

FIG. 9 is a schematic view showing a conventional fabric alignment device.

[Explanation of symbols]

 2A Upper cloth 2B Lower cloth 2a Edge (edge of upper cloth) 2b Edge (edge of lower cloth) 12A Upper sensor 12B Lower sensor 13A Motor (upper sensor moving means) 13B Motor (lower sensor moving means) 13a Rotating shaft (upper sensor) Moving means) 13b rotating shaft (lower sensor moving means) 14A pinion (upper sensor moving means) 14B pinion (lower sensor moving means) 15A rack (upper sensor moving means) 15B rack (lower sensor moving means) 100 cloth alignment device

Claims (2)

[Claims] 1. An upper sensor detects an edge of an upper cloth of two cloths fed in the same cloth feeding direction in a state of being piled up and down, and based on detection information from the upper sensor, While moving the upper cloth in the cross direction of the cloth feeding direction, the lower sensor detects the edge of the lower cloth of the two cloths, and based on the detection information from the lower sensor, the lower cloth is In a fabric aligning device that aligns corresponding edges of the upper fabric and the lower fabric by moving in a crossing direction of the cloth feeding direction, the upper sensor is arranged in the crossing direction of the cloth feeding direction. An upper sensor moving means that can move independently of the sensor; and a lower sensor moving means that can move the lower sensor independently of the upper sensor in a crossing direction of the cloth feeding direction. Alignment device. 2. The upper sensor moving means and the lower sensor moving means respectively move the respective sensors to respective racks provided integrally with the respective sensors behind the upper sensor and the lower sensor. 2. The cloth aligning device according to claim 1, wherein a pinion fixed to a rotating shaft of each motor provided in each of the means is meshed with the pinion.