JPS63211365A - Automatic feed colorimetric apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to color quality control in the dyeing and coloring process of long articles in the industrial fields of dyeing, textile, paper manufacturing, synthetic resin, etc.

Conventional technology When cutting out a sample from a product during the production process and measuring the sample with a colorimeter, or in the case of knitted nylon socks, colorimetrically managing the quality of the dyed finish due to differences in yarn, stockinette knitting is used. The fabric is knitted with different threads at regular lengths, and a strip-shaped sample is created in which knitted fabrics with different threads are connected in succession.This is then dyed to examine the quality of the dyeing due to the different threads.

The inspector has used a method of visually detecting the transition points in the thread, manually feeding the yarn between the transition points to a colorimeter, and measuring 11 colors each time.

There was the problem of inefficiency as people had to be present all the time to measure the colors.

Problems to be Solved by the Invention In the above-mentioned conventional technology, the production process had to be temporarily stopped, the samples were taken out, and the samples had to be manually measured one by one. This will result in a loss.

In addition, in the quality control of dyeing knitted stocking socks, there are inefficiencies in the quality control of dyeing stockinette socks, which requires a full-time worker to carry out the measurements, and at the same time, increases in labor costs, causing economic problems. development was strongly desired.

Means for Solving the Problems The present invention has been made in order to meet the above-mentioned needs.
A mark detection device that predicts the coloring position of the strip sample in advance, a mechanism that temporarily stops the movement of the strip sample based on the signal from this detection device, and a colorimetric optical system that detects the sample using the signal from the mark detection device. A sample holding device that is brought into close contact with the measurement hole, a colorimeter that starts NJ color work based on a signal from this sample holding device, and a sample that releases the sample holding with a signal from the colorimeter when measurement is completed and moves the strip sample again. The device automatically measures the color of the required part of a strip sample by combining a feeding mechanism and a control device that mutually controls each of these devices.The sample feeding mechanism consists of a drive roller, a load roller, a guide roller, and a feed motor. 9-li. The mark detection device consists of an illumination device and a light receiving section, a specimen holding drive motor, an optical shutter, two sets of emitters, and a light receiver. The colorimeter is r
It measures colors based on the principle of JIs Z8722 Object Color Measuring Method, and is an automatic feeding colorimeter consisting of a colorimetric optical system, a measuring section, a display, and a printer, which solves the above problems. This is to solve the problem.

A mark indicating the position to be measured is attached to the strip-shaped sample in advance, and the sample is attached to the sample feeding mechanism.

The feed mechanism moves the sample onto the measurement hole of the coloring optical system, and the mark detection device detects the mark on the sample, determines that the sample is at the measurement position, and temporarily stops the feed mechanism.

The sample stops above the measurement hole. At this time, the sample holding device operates, and the sample holding device presses the sample from above so that it comes into close contact with the measurement hole.

When the sample is held down, a command is issued to start color measurement, the colorimeter operates, and the color measurement results are shown on the display and printer.

When color measurement is completed, the sample holder is released from the sample and released.

The sample feeding mechanism starts moving again and moves the sample to the next measurement position.

The series of operations described above is then repeated to perform automatic color measurement without an operator.

Example FIG. 1 shows an outline of the implementation of the present invention.

Marks 1 are placed on the strip sample 2 at measurement points in advance.

For example, in the case of a sample knitted with knitted stockinette fabric using different yarns at regular intervals, a mark, such as a black line, is drawn along the boundary at each yarn transition. The sample 2 is placed on the drive roller 5a, and the load roller 6a is placed on top of it so that the sample 2 is sandwiched between the drive roller 5a and the load roller 6a.

Pass the sample between the upper and lower rollers of the guide roller 7a, move it over the measurement hole 4 of the colorimetric optical system 3, pass it between the upper and lower rollers of the guide roller 7b, pass it over the drive roller 5b, and move the load roller 6b above it. The sample 2 is placed between the load roller 6b and the drive roller 5b.

When the feed motor 8 is operated in this way, the gears 2B, 2
7 rotates, the gears 2B and 29 that mesh with it rotate, and the rotation is transmitted to the rotating shaft 31 via the clutch 30, and the bevel gear 32, the bevel gear 33 that meshes with this, and the bevel gear 34 connected to the same rotating shaft rotate. A bevel gear 35 directly connected to the rotating shaft of the drive roller 5b meshes with this, and the drive roller 5b rotates.

Since sample 2 has a load roller 6b applying pressure to the drive roller 5b, sample 12 moves according to the rotation of the drive roller 5b due to friction with the drive roller 5b.

On the other hand, the drive roller 5a and the load roller 6a are driven by a feed motor 8.
Since the coupling state with the sample 2 is broken at the clutch 36,
As a result of the movement, the drive roller 5as and the load roller 6a rotate and serve as a sample feeding guide, and the sample 2 is smoothly moved onto the coloring optical system measurement hole 4.

If you want the sample to move in the opposite direction, disengage the clutch 30 and operate the clutch 36 in the opposite direction.
The rotation of 8 is transmitted to the rotating shaft 37 via the clutch 36, causing the bevel gear 38 to rotate, the bevel gear 39 meshing with this, and the bevel gear 40 coupled to the same rotating shaft.
The bevel gear 41 that meshes with this rotates and rotates the drive roller 5a connected to the same rotating shaft, causing the load roller 6a to rotate.
Move the sample 2 sandwiched between the two from the right to the left in the ftSi diagram.

Since the drive roller 5b and the load roller 6b are disconnected from the feed motor 8 by the clutch 30, they are rotated by the movement of the sample 2 and serve as sample guides.

When the mark 1 indicating the measurement point made on the sample 2 (this is done, for example, by marking a black line) comes to the position where it will be illuminated by the illumination device 10, the light receiving unit 11 which is observing this from above
The reflected light enters, and the mark image is formed on the light receiving surfaces of the detection light receiver 12 and the reference light receiver 13 of the light receiving section 11, as shown in FIG.

The detection light receiver 12 is composed of a plurality of light receiving elements 12a arranged in a line, and the reference light receiver 13 is composed of one light receiving element.The signal of each light receiving element is amplified by an amplifier 42, and the comparison circuit 4
3 is input.

When there is no image of the mark, the amplified signal of the reference receiver is A1.If the amplified signal of the receiver is B, then A
<This is related to B.

At this time, all outputs of the comparator circuit 43 are at H (high) level. Next, when the image of the mark is applied to one of the light receiving elements 12a of the detection light receiver 12, the signal of that element becomes smaller, and the relationship A<B is reversed to become A>B.

The comparator circuit 43 is inverted and changes from H (high) level to H (low) level. The output of the comparison circuit 43 is coupled to the OR circuit 44, and when A<B, the output is L (low) level, and when A>B, the output is H.
(High) level output is taken out, and the mark detection output is sent to the feed motor 8 of the sample feeder i#9 via the control device 25.
Issue a stop command to stop sample feeding.

Note that when the mark image is formed on the reference light receiver 13, the light receiver 1
Even if the signal No. 3 becomes smaller, the relationship A<B does not change, so the OR circuit 44 remains at an L (low) level output and does not become a mark detection output.

At the same time, the mark detection output is sent to the sample press 1 via the control device 25.
A driving command is issued to the sample holding drive motor 15 of the device 20.

As shown in FIG. 3, in the sample holding device 20, the optical shutter 17 is rotated by the operation of the sample holding drive motor 5, and the sample holding IG coupled to the shutter is lowered to hold the sample.

Since the connecting portion lee between the presser plate 16a and the presser arm 18b is flexible, the sample 2 is always pressed flat so that it comes into close contact with the measurement hole 4.

When the sample is held down, the drive motor 1
5 continues to rotate, but the shutter 17 is rotated around the rotation axis 15a.
The slip mechanism 15b using a spring causes a slip.

At the same time, a light emitter 18a and a light receiver 19a arranged to sandwich the optical shutter 17 are connected to the optical shutter 17.
The state changes from the state where the light is blocked by the light to the light receiver 19a through the notch L7a, and the signal from the light receiver 19a sends a command to the measuring section 21 of the colorimeter 24 to start measurement via the control device 25. put out.

The colorimetric optical system 3 of the colorimeter 24 illuminates the sample 2 with a light source 3a, receives the reflected light with a light receiver 3b, calculates the colorimetric value in the measuring section 21, displays the colorimetric value on the display 21, and displays the colorimetric value on the printer 23. to be printed.

P! When the JJ determination is completed, the measurement unit 21 sends a signal indicating completion to the control device 25, and the control device issues a command to reverse rotation to the sample holding drive motor 15 of the sample holding device 20.

The sample holder is raised by the reverse rotation of the drive motor 15, and the holder is released.

At the same time, the optical shutter also rotates, and the light emitter 18b1 light receiver 19b changes from the light-blocking state to the state in which the light reaches the light receiver 19b through the notch 17g, and the light receiver 19b issues a sample holding release signal and controls the control device 25. A stop command is issued to the sample holder drive motor 15 via the sample holder drive motor 15.

At the same time, the controller 25 issues an operation command to the sample feed motor 8 using a sample holding release signal, and starts feeding the sample again.

As the sample moves, the next mark 1a is detected by the mark detection device 14, the movement of the sample is stopped, and the color measurement process is repeated as described above. After each detection, the sample is paused, the sample is brought into close contact with the measurement hole using a sample holder, and the color is measured.This process is repeated to perform continuous side color measurements.

Effects of the Invention Conventionally, the production process was temporarily stopped to take out the sample, which obstructed the flow of production and caused losses such as the removed sample losing its commercial value.

In addition, in the example of quality control of dyeing stockinette socks, an inspector had to take all the time to carry out the measurements, but according to the present invention, quality control can be performed automatically by coloring during the flow of the production process. Now, inspectors only have to mark #I designated locations and mount the sample, and the rest can be fully automated to obtain colored data.

Conventionally, the inspector's work time was 8 hours, but with this invention, only marking and mounting the sample is required, so the work is now only 1 hour, and unnecessary samples are no longer needed, resulting in labor and resource savings. It had a big effect.

[Brief explanation of the drawing]

FIG. 1 shows an outline of an embodiment of the present invention. FIG. 2 shows a mark detection device. FIG. 3 shows a sample holding device. l...mark 2...sample 3...colorimetric optical system 4...measuring holes 5a, 5b...
Drive rollers 8a, 6b...load cola 7a,
7b...Guide roller 8...Feed motor 9
...Sample feeding mechanism 10...Illumination device 11.
...Light receiving section 12...Mark detection light receiver 13...Reference light receiver 14...Mark detection device 15...Sample holder drive motor IB...Sample holder 17...Optical shutter 18g, 18
b... Emitter 19a, 19b... Light receiver
20...Sample holding device 2I...Measurement section
22...Display unit 23...Printer 2
4... Colorimeter 25... Control device procedure correction %F (method) May 1988

Claims (1)

[Claims] This relates to continuous color measurement of a strip-shaped sample.
A sample feeding mechanism 9 consisting of drive rollers 5a and 5b to move the sample 2 onto the measurement hole 4, load rollers 6a and 6b that press the sample 2 onto the rollers, guide rollers 7a and 7b, and a feed motor 8; an illumination device 10, a detection light receiver 12 consisting of a plurality of light receiving elements arranged in a line at the mark imaging position in a light receiving section 11 that observes the mark from above, and one light receiving device disposed adjacent thereto. Reference receiver 13 by element
A mark detection device 14 comprising a light receiving section 11 that detects a mark from the difference in the amount of light received by a detection light receiver and a reference light receiver and issues a signal to stop feeding the sample, and a sample holding drive motor 15 rotate. The presser foot 16 is lowered to bring the sample 2 into close contact with the measurement hole 4, and the notched disk-shaped optical shutter 1 is connected to the drive motor rotation shaft.
7, and two sets of floodlights 18a and 1 placed between them.
8b, a sample holding device 20 that outputs a colorimetry start signal and a sample holding release signal from the light receivers 19a and 19b; a colorimetric optical system 3; a measuring unit 21; a display 22; and a printer 2.
3, a control device 25 that receives signals from each of the sample feeding mechanism 9, mark detection device 14, sample holding device 20, and colorimeter 24 and controls the colorimeter 24. An automatic feeding color measurement device characterized in that the color measurement is performed by temporarily stopping at each measurement position, bringing the sample into close contact with the measurement hole using a sample holder, and repeating this process to measure color continuously.