JPH0561382B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to pattern-matching cutting of fabrics having a pattern, and particularly to pattern-matching and cutting of fabrics having patterns, and in particular, a pattern suitable for pattern-matching and automatic cutting of fabrics by image processing the pattern. This invention relates to a combination cutting device.

[Conventional technology]

With conventional pattern matching cutting equipment, when cutting the sewing parts necessary for pattern matching, the pattern is cut by hand while stacking the pattern on the fabric, which is inefficient and reduces the production efficiency of fabrics with patterns. This was extremely poor compared to cloth, and automation of pattern matching and cutting was desired. Recently, as a semi-automated pattern matching cutting device, pattern matching is performed by outputting an image near the pattern matching point to a monitor camera using an ITV camera and aligning the cursor to the pattern matching position on the monitor TV with the operator's eyes. A device is being developed. However, this system also required operator intervention for each pattern matching point and was inefficient.

[Problem to be solved by the invention]

Conventional pattern-matching and cutting devices require operator intervention to match and cut the fabric, and cutting is performed while checking the image of the pattern, resulting in poor production efficiency.

An object of the present invention is to provide a pattern matching cutting device that processes images input to an ITV camera and automatically cuts fabric based on pattern position measurement results.

[Means to solve the problem]

In order to achieve the above object, the pattern matching and cutting device according to the present invention includes a spreading machine that supplies the fabric, a conveyor that conveys the supplied fabric, and a CAD system for converting the fabric.
A cutting machine body that cuts according to the pattern matching information created by the system, a cutting control means that controls the cutting machine body and the conveyor, an ITV camera that inputs an image of the fabric pattern, and a fabric pattern that is determined by this image. A pattern matching recognition means for confirming the position of the pattern is provided, and the pattern matching recognition means moves a pattern recognition device main body and at least one ITV camera for measuring the position of the pattern based on an image in the width direction of the cloth. The system consists of a robot that controls the robot, and a robot control device that controls the robot.

The cutting control means includes a pattern matching recognition means.
The conveyor is stopped based on a request to stop the conveyor that is output based on pattern matching information from the CAD system and image input from the ITV camera, and when the conveyor is stopped, the pattern matching recognition means is automatically
The ITV camera is moved to the pattern matching position, the position of the pattern is measured based on the image input, and the cutting control means directs the fabric to the cutting position on the conveyor based on the position of the pattern measured at this time. When it moves and cuts, it stops the conveyor and automatically cuts the fabric based on the cutting point array data from the CAD system.

In addition, the spreading machine is equipped with at least one ITV camera or sensor that detects the bending of the pattern pattern of the fabric being conveyed and moves in the width direction of the fabric, and changes the feed amount depending on the position in the width direction of the fabric to bend the fabric. The structure includes a conveyance correction means for correcting.

[Effect]

According to the pattern matching cutting device of the present invention, a pattern matching recognition device (pattern matching recognition means) using image technology is installed in front of the cutting control device (cutting control means), and the cutting is performed in synchronization with the movement of the conveyor. In addition to performing pattern matching work in real time, the pattern matching recognition device automatically measures pattern positions by processing images from the ITV camera. That is, the fabric to be cut is fed from a fabric spreading machine onto a conveyor.
The spreading machine has a function of correcting the curvature of the handle when feeding out the fabric, so that the handle of the supplied fabric is in an unbent state. The cutting control device and the pattern matching recognition device can obtain common coordinates on the cloth based on the amount of movement of the conveyor after detecting the leading end of the cloth on the conveyor. The pattern matching recognition device receives CAD information via the cutting control device,
Since the position of the pattern matching point on the fabric is obtained, the conveyor stop position for pattern matching work is determined, and the information is transferred to the cutting control device to request the conveyor to stop. The pattern matching recognition device, which stops at the conveyor's request, activates the robot and moves the ITV camera directly above the pattern matching point. In this state, an image is captured, the pattern image is analyzed, and the pattern position is measured. The measured pattern position is transferred to the cutting control device. When image capture is finished, the next stop of the conveyor is requested and the conveyor movement is resumed. When the cutting control device receives the pattern position information, it converts the point sequence data for cutting in the CAD system by parallel movement, etc., and when the conveyor comes to the cutting position, it performs cutting using the converted point sequence data.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 and 2.

As shown in FIGS. 1 and 2, the spreading machine 9
A cutting machine body 7 that cuts the fabric supplied from the conveyor 8 and conveyed by the conveyor 8, and a cutting control means (cutting control device) that controls the cutting machine body 7 and the conveyor 8.
10, and a pattern matching recognition means (pattern matching recognition device) for checking the position of the pattern of the fabric by the image of the ITV camera 6 on the monitor TV 5, the pattern matching recognition means analyzes the image. a pattern recognition device body 1 that measures the position of the pattern and outputs it to the cutting control means 10 via an interface computer 3; and a robot 4 that moves at least one ITV camera 6 directly above the pattern matching position. The cutting control means 10 controls the conveyor 8 based on the measured position of the pattern.
The apparatus is configured to have means (not shown) for automatically cutting the cloth by stopping the cutting and marking data from the CAD system 12 and converting the cutting point data from the CAD system 12.

The spreading machine 9 includes at least one ITV camera 6 or sensor (not shown) that detects the bending of the pattern of the fabric being conveyed and moves in the width direction of the fabric.
and a conveyance correction means (not shown) that corrects bending by changing the feed amount depending on the widthwise position of the cloth.
The configuration includes the following.

Further, the pattern recognition device main body 1 is configured to analyze the grayscale image from the ITV camera 6, process it at high speed, and output the measured position of the pattern.

Furthermore, in the pattern matching cutting device according to any one of claims 1, 2, or 3, the pattern matching position on the fabric can be approximately adjusted by the movement of the conveyor 8 and the movement of the single-axis robot 4 installed on the conveyor 8. directly above
The ITV camera 8 may be moved and an image of the pattern matching position may be input to the ITV camera 8.

In the pattern matching cutting method, claim 1
The pattern matching and cutting device described in any one of items 4 to 4 is used to perform pattern matching and automatic cutting of the fabric in real time in synchronization with the movement of the conveyor 8.

Next, the operation of this embodiment will be explained.

The CAD system 12 creates information necessary for pattern matching and cutting, and inputs it to the cutting control device 10 via the floppy disk 11. CAD system 1
The information created in step 2 is point sequence data for cutting and pattern matching information for pattern matching. All of this information is once taken into the cutting control device 10, and the pattern matching information is transferred to the pattern matching recognition device. The cutting control device 10 controls the cutting machine main body 7 and the conveyor 8. The conveyor 8 is controlled by a conveyor 8 for cutting from the cutting machine main body 7.
The stop and movement of the conveyor 8 is controlled in response to a request to stop the conveyor 8 or to stop the conveyor 8 for pattern recognition. The pattern matching recognition device obtains an image of the closest pattern matching point from the pattern matching information in the CAD system 12 and requests the conveyor 8 to stop. Similarly, a request to stop the conveyor is also made from the cutting machine main body 1, and the conveyor 8 is stopped at the nearest position, so the corresponding process is executed. When the processing is completed, the conveyor 8 starts moving and moves to the next stop request position. With this configuration, pattern matching and cutting can be performed in real time.

Next, the pattern matching recognition device will be explained.

The pattern matching recognition device includes a pattern recognition device main body (image processing device) 1, a robot main body 4, a robot control device 2, an ITV camera 6, a lighting device (not shown), an interface computer 3, and the like.
The interface calculator 3 is connected to the pattern recognition device main body 1
This is to facilitate data transfer between the cutting control device 10 and the cutting control device 10. The pattern recognition device main body 1 is an ITV
It has a function of automatically measuring the pattern position by capturing an image from the camera 6 and analyzing the grayscale image. ITV
The camera 6 is mounted on the robot 4 and can be moved in the width direction of the cloth.
When the pattern matching recognition device is informed that the conveyor 8 has stopped for pattern matching, it starts the robot 4, moves the ITV camera 6 directly above the planned pattern matching point, captures the image, and determines the pattern position. measure.
The measured results are transferred to the cutting control device 10. These steps are repeated to sequentially determine the pattern matching positions, and the cutting control device 10 similarly aligns the fabric of the corresponding part with the position of the cutting machine body 7 using the point sequence data converted based on the pattern position measurement results. When the part comes, the conveyor 8 is stopped and the part is cut. The pattern matching cutting device of the present invention performs cutting while automatically matching patterns by repeating such a procedure.

According to the above embodiment, since the robot equipped with the ITV camera moves only in the width direction of the fabric, it is possible to install the robot and the cutting machine adjacent to each other, and also to synchronize with the movement of the conveyor. It becomes possible to match patterns and cut fabrics in real time. Therefore, the device can be downsized and automatic cutting can be performed at high speed.

[Effects of the Invention] According to the pattern matching and cutting device of the present invention, the patterns of the fabric are automatically matched and cut, so operator intervention is not required, and the pattern of the fabric with the pattern is automatically cut. Production efficiency is significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
The figure is a perspective view of an apparatus showing an embodiment of the present invention. 1... Pattern recognition device body, 2... Robot control device, 3... Interface computer, 4... Robot, 5... Monitor TV, 6... ITV camera,
7... Cutting machine main body, 8... Conveyor, 9... Spreading machine, 10... Cutting control device (cutting control means).

Claims (1)

[Scope of Claims] 1. A fabric pattern matching cutting device, which comprises: a spreading machine that supplies fabric; a conveyor that conveys the supplied fabric; A cutting machine main body that cuts the fabric accordingly, a cutting control means that controls the cutting machine main body and the conveyor, an ITV camera that inputs an image of the pattern of the fabric, and a position of the pattern of the fabric based on the image. The pattern matching recognition means includes a pattern recognition device main body that measures the position of the pattern based on the image;
The cutting control means includes a robot that moves at least one ITV camera in the width direction of the fabric, and a robot control device that controls the robot, and the cutting control means is configured to recognize the pattern matching information of the CAD system and the cutting control device. The conveyor is stopped in response to a stop request for the conveyor that is output based on the image, and when the conveyor is stopped, the pattern matching recognition means causes the robot to move the ITV camera to the pattern matching position and capture the image. The cutting control means moves the fabric toward a cutting position by the conveyor based on the position of the pattern measured at this time. ,
A pattern matching cutting device characterized in that the conveyor is stopped and the fabric is automatically cut based on cutting point array data from a CAD system. 2 The spreading machine includes at least one ITV camera or sensor that detects the bending of the pattern pattern of the fabric being conveyed and moves in the width direction of the fabric, and changes the feed amount depending on the position in the width direction of the fabric. 2. The pattern matching and cutting device according to claim 1, further comprising a conveyance correction means for correcting said bending.