JPH01308363A - Traverse control method for filament body in filament winder - Google Patents

Abstract

PURPOSE:To make improvements in operation efficiency by constituting a traverse width to be automatically controlled so as to cause winding height to become almost the same over a barrel overall length, on the basis of the detected signal of a sensor detecting each winding height at a spot in and around a flange and an optional position. CONSTITUTION:With replacement of a bobbin 3, if inner width of a flange 4 of the replaced bobbin 3 differs from the initial traverse width, or the inner width of the flange 4 differs from the traverse width due to deformation in the flange 4 during winding and thereby winding height is protuberant in and around the flange 4, or inversely it is hollowed, each of video cameras 15, 15 detects these phenomena. On the basis of the detection signal, the protuberance and the hollow are eliminated and the traverse width is adjusted so as to cause the winding height to become almost the same over an overall length of a bobbin barrel 5, whereby a filament body 2 is wound in a normal winding state all the time. Thus, compensation and control over the traverse width can be done without interposing any man power.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for controlling automatic traverse for guiding a filament to a bobbin of a filament winder.

[Conventional technology]

2. Description of the Related Art Conventionally, a traverse device has been used to wind a linear object such as an electric wire or cable onto a bobbin. This traverse device reciprocates a cross-wound traverse that guides a linear body to a bobbin barrel in parallel in the axial direction of the bobbin, but the width of the traverse must match the winding width of the bobbin. For this reason,
Traverse position detectors are provided facing both flanges of the bobbin, and the positions of the traverse position detectors are adjusted by moving them using a drive motor, etc., and when the traverse position detector detects traverse, the detection signal is sent. The traverse returns at both flanges (winding width ends) of the bobbin to match the traverse width to the winding width of the bobbin (see Examples).

[Problem to be solved by the invention]

However, even if the traverse detection position is initially adjusted to the winding width of the bobbin, the inner width of the bobbin's flange will no longer match the original traverse width due to deformation of the flange and variations in dimensions during bobbin manufacturing. Winding defects occur such that the traverse end of the filament wound around the bobbin becomes depressed due to insufficient traverse, or bulges due to excessive traverse.

If winding defects occur in this way, when the filament is pulled out from the bobbin in the next process, the filament near the depression may fall into the depression, or the raised part may slide down to a lower part, causing the thread to be pulled out. overlaps the striatum that should be
There is a problem that the filament may break or, in the case of electric wire cables, the outer insulation may be damaged.

As a means to solve this problem, a person constantly monitors the winding condition of the bobbin, and when the winding condition near the bobbin collar deteriorates as described above, the traverse position detector is moved to adjust the traverse amount. It is conceivable to change the winding state to a normal winding condition, but this method requires humans and is not only inefficient, but also problematic in terms of cost.

Taking the above points into consideration, the present invention provides a traverse control method that can automatically control the adjustment of a traverse position detector so that the winding condition of a bobbin can always be maintained in a good condition without human intervention. The purpose is to provide

[Means for Solving the Problem] In order to achieve the above object, the present invention provides a wire winding machine that traverses the wire between the flanges of the wire winding bobbin to remove the wire from the bobbin. When winding the winding around the body, a sensor detects the winding height near the brim and the winding height at any other arbitrary position, and the winding height is determined over the entire length of the body based on the detection signal of this sensor. The traverse width is automatically controlled so that it is almost the same.

[Effect]

The traverse control method configured in this way is such that when the bobbin is replaced, the inside width of the flange of the replaced bobbin differs from the original traverse width, or when the inside width of the flange differs from the traverse width during winding due to deformation of the flange. If the winding height rises or becomes depressed near the stomach or brim, the sensor detects this and, based on the detection signal, eliminates the rise or depression and winds the entire length of the bobbin body. The traverse width is adjusted so that the height cuff is almost the same, and the striatum always has a normal rolled shape! It is wound around a ring.

[Example 1] As shown in FIG. 1, an automatic traverse device 71A according to the control method of the present invention includes a traverse 1 equipped with a guide roller 6 that guides a filament 2 wound on a bobbin 3; It consists of a winding state detection controller 18 for controlling the winding width of the bobbin 3 of the traverse 1 and a sequencer 16.

The guide roller 6 of the traverse 1 is movably provided on the screw feed shaft 8 and the guide shaft 7 over the entire axial length of the bobbin 3. When the screw feed shaft 8 is rotated by the drive motor S, the guide roller 6 of the bobbin 3 is moved. It reciprocates left and right across its entire length parallel to the axial direction. The stroke time of this reciprocating motion is set in advance in consideration of the wire diameter of the filament 2. Further, in the vicinity of the screw feed shaft 8, there is a guide shaft 1 extending over the entire length of the screw feed shaft 8.
A screw feed shaft 1) having an appropriate length from both ends of the screw feed shaft 1) is provided parallel to the shaft 8, and when the screw feed shaft 1) is rotated by a drive motor 13, both shafts 1). 12, or a mitsu switch S moves left and right. The limit switch S determines the reciprocating width of the guide roller 6. When the protruding piece 6a of the traverse 1 comes into contact with the actuator of the limit switch S, the switch S is turned on and the motor S is reversed, and this action is performed. The guide roller 6 reciprocates by a predetermined width (the inner width of the collar 4 of the bobbin 3) by the left and right swings S. These limit switches S and drive motor 13 constitute a traverse position detector 10.

The winding state detection controller 18 receives the light from the high frequency light source 14 through the winding state of the bobbin 3 to a CCD (charge-coupled device) video camera 15, processes the captured image, and detects the winding state. Based on the state, it is either a normal winding state (Fig. 4 (a)) or an abnormal winding state (Fig. 4 (bl) or (C).
)) to determine whether. Here, the video camera 15 corresponds to the sensor described in the claims.

The sequencer 16 sends a signal to the drive motor 13 that moves the traverse position detector 10 to bring it into a normal winding state based on the result determined by the winding state detection controller 18, and also operates each video camera 15. Signals such as switching are sent to the winding state detection controller 1st.

The high frequency light source 14 and the video camera 15 are installed vertically as a viewing range of the video camera 15 so that the height of the winding state from the start of winding near the collar of the bobbin 3 on which the filament 2 is wound to the end of winding can be detected. The shaft side is arranged from the outer diameter of the bobbin collar 4 to the bobbin barrel, and the horizontal shaft side is arranged from the outer surface of the bobbin collar 4 to near the center of the bobbin barrel. That is, the image captured by the video camera 15 is captured on a cathode ray tube (not shown), and in that state, as shown in FIGS. 3 and 4,
The image range P is defined in the X-axis direction from a position slightly away from the outer surface of the bobbin collar 4 to near the center of the bobbin barrel, and in the Y-axis direction from a position slightly inside the barrel outer surface to the outer peripheral surface of the collar 4. The winding state detection controller 18 is connected to the video camera 15 and the sequencer 16, and the sequencer 16 is connected to the drive motor 13 by cables (see FIG. 5), and is located outside the winder.

The video camera 15 has an image sensor having 256 squares in the vertical direction and 256 squares in the horizontal direction, as shown in Figure 3 (bl).In Figure 1, 17 is a peephole. .

Next, we will discuss the control details of this automatic traverse device A in the second item.
Fig. 3 fat, (bl, Fig. 4 (al, [bl, (
The explanation will be based on C1.

Since the light emitted from the high-frequency light source 14 is blocked by the striatum 2 wound around the bobbin 3, the video camera 15 captures the same shadow (brightness and darkness) as the striatum 2 and the collar 4 of the bobbin 3. The image is then imaged on the CCD element.

Here, the X coordinate of the inner surface of the collar 4 of a certain bobbin is a.

If set to , the bobbin 3 has deformation of the collar 4 and variations in dimensions during manufacture, so when another bobbin 3 is attached to the winder 1) 9, the X coordinate of the inner surface of the bobbin collar 4 will be the initial setting value a1.
It may be different. Therefore, in this image P, the part corresponding to the tsuba 4 is "dark" (dot part Q in the figure) because the light from the high-frequency light source 14 is blocked.
The X coordinate aL*j that transitions from "dark" to "bright" (pointless portion R in the figure) is set as the reference point for the bobbin 3, and the limit switch S is moved based on this.

Next, in order to check the winding condition near the inner surface of the collar 4, first! 74 From the X coordinate al+j on the inner surface (X on the bobbin center side
Y coordinate up to coordinate aI+jLfi (for example n=IQ)"
While finding the average value of the "light" value of 10, find the average value of the Y coordinate "light" (tl) corresponding to the X coordinate of the center side of the bobbin barrel 5, for example from a 1415° to al.2°. Compare the average value near the inner surface of 4 and the average value of the center side of bobbin barrel 5, and if the difference between the two is more than a set value (for example, 2 l), limit switch S is set in proportion to the value exceeding the set value. A signal is sent from the sequencer 16 to the drive motor 13 to move the limit switches S to the left or right, thereby changing the width and position of both limit switches S, that is, the traverse width, so that the winding heights are approximately the same.

For example, if the winding state is raised near the collar 4 as shown in Figure 4 (bl), the limit switch S is
The traverse 1 is moved toward the center by a drive motor 13 so that the traverse 1 is reversed just before the swell. In addition, if the winding state is such that the vicinity of the collar 4 is depressed as shown in FIG. Make sure to traverse a little more than the inside surface and invert it while filling in the depression.

As described above, the traverse width is automatically adjusted by repeating the operation of moving the mint switch S from the detection judgment of the winding state of the two filament bodies of the bobbin 3 from the beginning to the end of the winding of the bobbin, and the winding height is adjusted. Make sure they are almost the same.

[Embodiment 2] As shown in FIG. 6, this embodiment uses a sensor (video camera 15) for detecting the winding height in the previous embodiment.
, ultrasonic displacement sensors 20a, 20b, 20G (&
20), and a switching box 21 is added to the winding state detection controller 18.

The ultrasonic displacement sensor 20 is attached to the arm 24 so as to be perpendicular to the bobbin barrel 5. The sensors 20a and 20C at both ends face inside near the bobbin flange 4 to check the winding state (9 winding height), and the central sensor 20b faces near the center of the bobbin body 5 to check the winding state 8 (
winding height).

The center of the arm 24 is attached to the rod tip of an air cylinder 26 fixed to a bracket 25 attached to the winder body frame (not shown), and both ends of the arm 24 are fixed to the placket 25. A guide shaft 28 that is loosely fitted into the guide 27 and slides with the air cylinder 26
is fixed. The air cylinder 26 may be replaced with a power cylinder.

Therefore, when the bobbin 3 that winds the filament 2 becomes fully wound and automatically switches to the empty bobbin (not shown), the air cylinder 30 moves the telescopic guide 2S to the fully wound bobbin collar 4, and the The strip body 2 is fully wound toward the bobbin collar 4 side and automatically switched, but the displacement sensor 20 is moved back from the bobbin 3 by the air cylinder 26 (so that it does not hit the middle tank guide 29. The displacement sensor 20 can be brought close to the bobbin 3, and its detection accuracy can be easily improved.The amount of movement of the sensor 20 is controlled based on the sensor 31.

In this embodiment, first, the displacement sensor 20 is brought close to the outer periphery of the bobbin collar 4 set by the sensor 31 to detect the winding state of the bobbin 3 which is being wound.

This bobbin winding state is first detected by the winding state detection controller 18.
The distance r from the center side of the bobbin barrel 5 to the filament 2 is measured multiple times (for example, 20 times) using the displacement sensor 20b, and the average value is calculated. Next, the sequencer 23 switches the measurement location to the displacement sensor 20a near the inner side of the bobbin collar 3 via the switching box 21, measures the distance Mr to the striatum 2 multiple times (for example, 20 times), and calculates the average value. Calculate. The winding state detection controller 18 calculates the respective average values obtained by both displacement sensors 20a and 20b, and if the difference between them is greater than a set value (for example, 3 dragons), it is determined from that value whether the vicinity of the tsuba 4 is raised (7th Figure fbl), <Blank Figure 7 (
C)) is determined, and the sequencer 23 outputs a signal to the drive motor 13 to move the mint switch S.

For example, if the area around Tsuba 4 is raised (Fig. 7 (b)
)) moves the limit switch S toward the center of the bobbin barrel 5, and reverses the traverse 1 just before the swell of the filament 2. If there is a depression near the collar (FIG. 7(C)), move the limit switch S toward the outside of the collar 4 and reverse the traverse 1 while filling the depression.

Next, the sequencer 23 moves the measurement point to the displacement sensor 20b near the center of the bobbin barrel, and performs the same measurement as above.
Further, the sequencer 23 switches the measurement location to the displacement sensor 20C near the other bobbin collar 4, and measures the distance r to the filament 2 a plurality of times (for example, 20 times), and measures the average value.

The difference is determined by the winding state detection controller 18, and a signal is issued to move the limit switch S of the sequencer 23, thereby adjusting the traverse width.

Note that in this embodiment, the ultrasonic displacement sensor 20
An optical displacement sensor can be used instead.

〔Effect of the invention〕

The present invention is configured as described above to ensure that the winding state of the filament on the bobbin is normal, so that the traverse width can be corrected and controlled without human intervention, and work efficiency can be improved. .

[Brief explanation of the drawing]

1 and 6 are schematic diagrams of each embodiment of the automatic traverse control method according to the present invention, FIG. 2 is a schematic diagram of the winding state detection controller of the embodiment of FIG. 1, and FIG. 3 (al. FIG. 1 is a principle diagram of winding state detection in the embodiment, FIG. 4 (b) is a detailed diagram of +al, FIGS. 5 and 8 are automatic traverse control block diagrams,
Figures (al, Figure 7 ta+ are the same when the winding condition of both embodiments is normal, (bl is the same when the vicinity of the flange is raised, fc is the same)
1 is a schematic explanatory diagram of a case where the vicinity of the brim is depressed. 1...Traverse, 2...Striatal body, 3...Bobbin, 4...Bobbin collar, 5...Bobbin body, 6・・・・・・
...Guide roller, 8.1) ... Screw feed shaft, 9.13 ... Drive motor, 10 ... Traverse position detector, 14 ...
...High frequency light source, 15...Video camera,
16... Sequencer 1 18... Winding state detection controller, 20a, 20b
, 20C... Ultrasonic displacement sensor,
23...Sequencer-1A...
... Traverse device, S... Limit switch. Patent distributor: TAC Electric Cable Co., Ltd. Agent: Kama 1) Text 2 (b) Figure 4 (a) (b) (C) Figure 5

Claims (1)

[Claims] (1) In a filament winding machine, when traversing the filament between the flanges of the filament winding bobbin and winding it around the body of the bobbin, the winding height near the flanges and any other The wire is characterized in that the winding height at the position is detected by a sensor, and the traverse width is automatically controlled based on the detection signal of the sensor so that the winding height is approximately the same over the entire length of the body. How to control body traverse.