JPH0362417A - Correction method for cable winding state - Google Patents

Abstract

PURPOSE:To enable the automatic and accurate winding of a cable onto the next layer at the edge of a collar by applying the constitution wherein the fluctuation of a winding cable in the previous turn is detected for every turn, and causing the predetermined twisting movement of the cable or a bobbin when the fluctuation exceeds the predetermined value. CONSTITUTION:An image processing mechanism 1 is used to continuously monitor the winding state of a cable 6 and a collar edge distance D is always measured for each turn of the cable 6. Also, the cable 6 is twisted right with a correction mechanism at the point B1 where a maximum fluctuation distance D1 is given among the measured collar edge distance values, and while a gap of distance l is being maintained from the maximum fluctuation point A1 of the previous turn, the cable 6 is wound. In this case, the length l of the gap satisfies the condition of l<=D/2. Then, the cable 6 is twisted left with the correction mechanism at the point B2 of a minimum fluctuation distance D2, and not at the point B1 of the maximum fluctuation distance D1 among the measured collar edge distance values, and a gap from the minimum fluctuation point A2 of the previous turn is kept 6 is kept close for winding the cable 6.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention performs predetermined image processing while constantly taking images of the winding state of the cable being wound around the bobbin to determine the current winding state of the cable for each turn. The distance between the brim point and the brim point of the bobbin is measured, and if there is a large variation in the brim distance during each circuit, this variation is detected and the variation is minimized until the cable reaches the brim. This invention relates to a cable winding state correction method for correcting the cable winding state so as to minimize the cable winding state.

[Conventional technology]

When winding cables around a bobbin, take into account workability when unwinding the cables, and in order to unwind the cables smoothly, wind the cables in the correct order (hereinafter referred to as "alignment"). It is important to make the paper roll (called "maki"). By the way, when winding the cable around this bobbin in an aligned manner, changes in diameter dimensions, deformation of the diameter cross section, flatness and installation of the bobbin flange may cause the cable to stick up or partially dent, especially at the edge of the flange. This has become a troublesome problem. for example,
As shown in FIG. 6, if the flatness of the tsuba 100 is poor,
Even if the cable 101 is wound in an aligned manner, if there is a large variation in the distance to the brim near the brim, and the difference between the maximum distance d1 and the minimum distance d2 is greater than a predetermined value,
As shown in FIG. 7, some cables are lifted up in the final winding.

For this reason, in order to wind the cable in an aligned manner over multiple layers, it is necessary to constantly observe the winding condition of the cable near the brim, and to measure the distance from the cable winding point to the brim for each turn. In other words, if a large change occurs in the brim distance, this must be corrected before the brim is wound.

[Problem to be solved]

However, in the conventional method, the worker directly monitors the winding condition of the cable all the way to the brim, and if there is a large change in the brim distance, the operator must immediately check the situation. Acknowledge,
The winding condition is corrected by the operator, and this work is unavoidably dependent on human labor, making automation difficult.

In view of the above-mentioned conventional drawbacks, the present invention constantly checks the winding state of the cable, and when there is a large change in the brim distance, a predetermined movement is performed on the bobbin side or the cable side to be wound. It is an object of the present invention to provide a method for correcting the winding state of a cable, which automatically absorbs winding fluctuations before winding the cable around the brim.

[Means to solve the problem]

That is, the present invention constantly checks the current winding point of the cable to be wound around the bobbin and the brim point on the inner wall surface of the bobbin flange on the side of the brim area where the cable is to be wound from now through image processing, and calculates the distance between these two points. After the brim distance is measured and the winding point reaches within a predetermined distance from the brim point, if the cable winding variation exceeds a predetermined value in the brim distance in each lap, this is corrected by the image processing. When the cable from the next circuit reaches the vicinity of the maximum fluctuation point of the circulating cable that caused the fluctuation, a predetermined movement is performed on the cable or bobbin side so that the cable approaches the cable from the previous circuit to a certain distance. A predetermined movement is performed on the cable or bobbin side so that when the next cable reaches the vicinity of the cable's minimum fluctuation point, the cable separates from the previous cable by a certain distance. The cable is wound while performing at least one of the separating movements, and the cable is wound in an aligned manner near the brim.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a correction device used when correcting a cable by the cable winding state correction method according to the present invention, and this correction device consists of an image processing mechanism 1 and a correction mechanism (flashing). It is configured.

The image processing mechanism 1 uses the image processing method proposed by the inventor to detect the winding point where the cable is currently winding after passing through the tracing area α and the point at the collar 2a of the bobbin 2 to be wound from now on. (Hereinafter, this will be referred to as the brink point.)
When the distance (hereinafter referred to as the rim distance) between the It is.

That is, as shown in FIG. 2, this image processing mechanism 1 includes a parallel light irradiation means 3 that irradiates parallel light at a predetermined angle of inclination from the sides of both flanges 2a of the bobbin 2 to the entire bobbin body 2b; As shown in FIG. 2, there is a spot light irradiating means 4 that irradiates the inner wall surface of the flange 2a of each bobbin with a spot light at a predetermined inclination angle, and a bright area E (
Imaging means 5 that images the area (centroid) that is the center of the figure formed by the figure (see Fig. 2) and the spot-like bright area F (see Fig. 2) projected by the spot light.
and a control unit (centroid) that detects the centroid and spot-like bright area ahead of the image captured by the imaging means 5, performs predetermined arithmetic processing, and calculates the brim distance. has been done. Note that this image processing mechanism may perform image processing over the entire area.

The correction mechanism uses the image processing mechanism 1 to constantly adjust the winding point, which has reached the correction area T after passing through the copying area α, to V.
Recognizing that fi, for example, the edge treatment varies greatly at a certain arbitrary point in each lap, that is, this variation δ is the cable diameter (
If d) is exceeded, prescribed modifications are made to the cable or bobbin. Note that this correction mechanism has been proposed by the present inventor, namely, a traverser that winds the cable into a predetermined position, and a rotating means that rotates a mounting table on which a bobbin is placed to cause a twisting action to the cable. etc. are used, and the image processing mechanism 1
It operates under the control of signals from the controller.

Next, a method for correcting the winding state of a cable according to the present invention will be explained using the correction apparatus of the previous embodiment.

In the correction method 1 based on the separation operation, the entrapment state of the cable 6 is monitored one by one using the image processing mechanism 1, and thereby the flange distance is constantly measured for each rotation.

2. When measuring the edge distance, for example, the third
When a large fluctuation exceeding a predetermined value as shown in the figure occurs, that is, when it is detected that the difference between the maximum fluctuation point D2 and the minimum fluctuation point D2 exceeds approximately the cable diameter d, the image processing mechanism 1 The correction mechanism is actuated by a control signal output from the control section.

3. That is, as shown in FIG. 4, at the point B1 of the maximum variation distance D1 among the measured brim distances, the cable 6 is twisted to the right by the correction mechanism, and the cable 6 is twisted to the right at the point A1 of the maximum variation of the cable of the previous lap. A gap of length l is maintained between them and the cable 6 is wound around it. However, here, the length l shall satisfy l≦D/2.

4. In this way, when the image processing mechanism 1 detects that the difference between the brim distance at the maximum variation point and the brim distance D2 at the minimum variation point is still larger than the cable diameter d even in the next round. Then, the same operation is repeated by the correction mechanism.

Correction method using interlocking action Steps (1) and (2) are performed in the same way as in the previous case.

3. Next, as shown in FIG. 5, the correction mechanism twists the cable 6 to the left at point B2, which has the minimum variation distance D2, rather than at point B1, which has the maximum variation distance D11 among the measured brim distances. is added, and the cable 6 is wound in close contact with the minimum fluctuation point A2 of the cable 6 in the previous round.

4. In this way, when the image processing mechanism 1 detects that the difference between the brim distance D2 at the minimum variation point and the brim distance D1 at the maximum variation point is still larger than the cable diameter d even in the next round. Then repeat the same operation.

In addition, in the method of correcting the winding state of a cable according to the present invention, there are two methods for correcting the cable winding state:
Either one of the two methods, ie, the method using the interlocking operation, may be implemented, or these two methods may be implemented simultaneously.

〔effect〕

As explained above, according to the method for correcting the winding state of a cable according to the present invention, two points, the current winding point of the cable that has reached a predetermined distance from the brim and the inner wall surface of the brim of the bobbin, are simultaneously detected by image processing. The distance between them, that is, the edge distance, is constantly measured by taking images and image processing, and the fluctuations of the cable being wound up to the front station are detected every turn, and if the fluctuation exceeds a predetermined value, the cable is removed. Alternatively, it is possible to perform a predetermined twisting motion on the bobbin side, thereby reliably correcting the winding motion of the cable before reaching the brim, and automatically and accurately winding the cable into the next layer at the brim. This makes it possible to automatically wind the cable in alignment.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing a correction device used in the cable winding condition correction method according to the present invention, and FIG. 2 is a schematic diagram showing a cable winding condition correction device according to the present invention in which a bobbin is irradiated with parallel light and spot light. FIGS. 3 to 5 are explanatory diagrams for explaining the cable winding state correction method according to the present invention, and FIGS. 6 and 7 are diagrams showing the conventional cable winding operation. FIG. 2... Bobbin, 2a... Flange, 6... Cable.

Claims (1)

[Claims] 1. The current winding point of the cable (6) to be wound around the bobbin (2) and the flange of the bobbin (2) on the side of the flange area where it will be wound from now on (
2a) Measure the brim distance between these two points while constantly checking the brim point on the inner wall surface by image processing, and after the winding point reaches within a predetermined distance from the brim point, When a variation in the winding of the cable exceeding a predetermined value occurs in the brim distance, this is detected by the image processing, and the cable (6) from the next circuit onward reaches the vicinity of the maximum variation point of the circulating cable where the variation occurred. Sometimes, the cable (6) or the bobbin (2) undergoes a predetermined movement so that the cable (6) snuggles up to a certain distance from the previous cable (6), and the minimum fluctuation point of the cable (6). on the cable (6) or bobbin (2) side so that when the cable (6) from the next circuit arrives near the cable (6) from the previous circuit, the cable (6) separates from the cable (6) from the previous circuit by a certain distance. Cable (6) while performing at least one of the separation movements to perform a predetermined movement.
A method for correcting the winding state of a cable, comprising winding the cable (6) and winding the cable (6) in an aligned manner near the brim.