JPH05286645A - Traverse control method with wire winder - Google Patents

Abstract

PURPOSE:To make initial winding of a wire, etc., automatically on a takeup drum always in a flat form of winding without being influenced by the direction and amount of strains in the flange of a takeup bobbin. CONSTITUTION:Flanges 23, 23' of a takeup bobbin 22 are pressed inward forcedly by ring-shaped pressure ribs 42a, 42' of flange holders 42, 42' to be given a certain amount of strain, and meantime a wire 12 is initial wound on the bobbin 22. Flange sensors 38, 38' sense the outer edges of the flange inner surfaces in accordance with a certain amount of inward strain of the flanges 23, 23' with increasing dia. of the winding, and the wire traversing distance till reversal in traversing is decreased gradually.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a traverse control method for a filament winding machine that winds filaments aligned with a winding bobbin.

[0002]

2. Description of the Related Art In order to wind a filament on a winding bobbin in an aligned manner, a traverser is used which traverses the filament along the axis of the winding bobbin for each winding. As shown in FIGS. 5 and 6, the traverser 28 includes a traverser pulley 36 supported by a carriage 32 attached to a traverser drive shaft 30, and the traverser pulley 3
6 is composed of left and right optical flange sensors 38, 38 'which are attached to mounting arms 34 on both sides of 6 to detect the outer edges of the inner surfaces of the flanges 23, 23' of the winding bobbin 22.

Further, the filament winding device has a filament winding device 12 when the flanges 23 and 23 'of the winding bobbin 22 have low rigidity.
In order to prevent the flanges 23, 23 'from unfolding abnormally due to the winding tightening force of the winding bobbin,
Flange retainer 40, 40 'pressed against the outer surface of 3'
Is equipped with. The work-side flange retainer 40 is opened and closed by an opening / closing cylinder (not shown) which is held by the work-side take-up shaft 24 and opens and closes the work-side take-up shaft 24. It is held by the shaft 26.

The filament 12 is wound around the winding drum 22 while being traversed by the traverser 28 along the axis of the winding drum 22, and the outer edges of the inner surfaces of the flanges 23 and 23 'of the winding drum 22 are the outer edges. Flange sensor 38,
When detected by 38 ', when traversing by the distance Z between the filament 12 on the traverser pulley 36 and the flange sensors 38, 38', the traverser 12 is folded back to reverse the traverse. The drive shaft 30 is controlled.

[0005]

When the winding bobbin used in such a filament winding device is made of plastic, the size of the winding bobbin varies depending on the molding conditions, etc., and exceeds the tolerance. A take-up bobbin may also be used. On the other hand, the filament body is required to have a flat winding form from the beginning of winding to the end of winding from the viewpoint of product quality.

As described above, when the winding bobbin has dimensional tolerances and the flanges 23 and 23 'of the winding bobbin 22 are distorted inward and outward, the winding shape of the filament body is greatly affected. FIG. 5 shows the strain of the flanges 23, 23 'of the winding bobbin 22, and the actual strain dimension X is about 3 mm at the maximum, which is exaggerated in FIG.

Particularly, the winding shape of the filament 12 is greatly affected when the flanges 23 and 23 'are distorted inward as shown in FIG. When the flanges 23 and 23 'are distorted outward, this distortion is caused by the flange retainer 4
Since it is corrected by 0, 40 ', the winding shape of the filament 12 is less likely to occur, but the flanges 23, 2
If 3'is distorted inward, as the winding becomes thicker, the filament 12 rises on the flanges 23, 23 'side as shown in FIG. 6, so that the quality of the product may be deteriorated. ..

In this way, the flange 2 becomes thicker as the winding becomes thicker.
The biggest problem of the phenomenon that the filament 12 rises on the side of 3, 23 'is that the distortion of the flanges 23, 23' of the winding bobbin 22 varies as shown in FIG. The flange 23, 23 'of the take-up bobbin 22 moves outward due to the tightening force of the strip 12.

When the flanges 23 and 23 'of the take-up bobbin 22 are expanded outward, the positions where the flange sensors 38 and 38' detect the flanges are displaced to the outside.
The position where should be folded back is not so wide outward. The difference in the spread amount between the flange detection position and the flange position at which the uppermost linear member should be folded back causes the linear member 12 to rise on the flange side.

In order to correct this, the flange sensors 38, 38 'are manually adjusted in the traverse direction according to the winding thickness of the filament 12, but this is low in workability and Moreover, it was difficult to make an appropriate adjustment.

The object of the present invention is to avoid the above-mentioned drawbacks and to provide a traverse so that the filament is always wound in a flat winding shape without being influenced by the direction and amount of distortion of the take-up bobbin flange. It is an object of the present invention to provide a traverse control method for a filamentous strip winding machine that can be automatically controlled.

[0012]

In order to solve the above-mentioned problems, the present invention uses a flange sensor to detect the outer edge of the inner surface of the flange of the take-up bobbin when the filament body is wound while traversing the take-up bobbin. In the traverse control method of the filament winding machine, which reverses the traverse of the filament after traversing the predetermined traverse distance after detection, the flange of the winding bobbin is forcibly pressed inward to wind the bobbin. While applying a certain amount of strain to the flange of the wire, wind the filament on the take-up bobbin, and after the flange sensor detects the flange as the winding of the filament increases, traverse until the traverse of the filament is reversed. It is an object of the present invention to provide a traverse control method for a filament winding machine, which is characterized in that the distance is gradually reduced.

[0013]

As described above, when the take-up bobbin flange is forcibly pressed inward and a certain amount of strain is applied to the take-up bobbin flange, the direction and amount of strain of the empty take-up bobbin flange are affected. It is possible to maintain a constant relationship between the flange detection position and the folded back position without receiving, so that the filament can be folded back in accordance with the flange detection position, and thus the ridge of the filament can be avoided. ..

When the traverse distance until the traverse of the filament is reversed after the flange is detected by the flange sensor as the filament gets thicker, the flange of the winding bobbin is distorted inward. The filament sensor detects that the position where the filament should be folded next is inside the position where it should be folded back earlier, and that the filament sensor is distorted outside the flange of the take-up bobbin compared to the actual folding position. It is corrected that the spread amount of the flange is too large.

Therefore, as described above, by the two actions of imparting a certain amount of strain to the flange and correcting the amount of folding back regardless of the direction of strain of the take-up bobbin, from the beginning to the end of winding of the filamentous body. The filamentous body can be wound in a flat shape.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed description will be given of an embodiment of the present invention with reference to the drawings. FIGS. 1 and 2 show an example of a filament winding machine 10 to which a traverse control method according to the present invention is applied. The filament winding machine 10 includes a machine frame 14, a delivery bobbin 16 detachably attached to the machine frame 14, and a wire bobbin 16 similarly attached to the machine frame 14 via a guide pulley means 18. A winding machine main body 20 around which the strip 12 is wound.

As shown in FIGS. 3 and 4, the winding machine main body 20 has a working-side winding shaft 24 and a driving-side winding shaft which are provided so as to face each other so as to detachably hold the winding bobbin 22. 26
And a traverser 28 that traverses the filament 12 along the axis of the winding bobbin 22.

The traverser 28 has a traverser drive shaft 30.
A traverser pulley 36 supported by a carriage 32 mounted on a mounting arm 34 and inner surfaces of flanges 23, 23 '(see FIG. 3) of the winding bobbin 22 mounted on the mounting arm 34 on both sides of the traverser pulley. Left and right optical flange sensors 38, 3 for detecting the outer edge of the
It consists of 8 '. The traverser drive shaft 30 is driven by a motor (not shown) and a feed screw rotated by the motor. The traverser drive shaft 30 is driven along the axis of the traverser drive shaft 30 by controlling the rotation angle of the motor.
It is controlled with an accuracy of 4 (mm).

As shown in FIG. 3, the traverse control method for the filament winding machine according to the present invention, as shown in FIG.
Winding bobbin 22 by forcibly pressing inwardly 3, 23 '
The filament body 12 is wound around the take-up bobbin 22 while applying a certain amount of strain to the flanges 23 and 23 'of the flange body.
The purpose is to successively reduce the traverse distance until the traverse of the filamentous body 12 is reversed after detecting the outer edge of the inner surface of 3, 23 '.

In the illustrated embodiment, the flanges 23 and 23 'of the winding bobbin 22 are forcibly pressed inward to impart a certain amount of strain to the flanges 23 and 23' of the winding bobbin 22. As shown in FIG. 3, regardless of whether the flanges 23 and 23 ′ of the winding bobbin 22 are distorted inward or outward, the annular pressing ribs are forcibly pressed to the inner circumferences of the flanges 23 and 23 ′. Flange retainers 42, 42 'having 42a, 42'a are used. The work-side flange retainer 42 is opened and closed by an opening / closing cylinder (not shown) which is held by the work-side take-up shaft 24 and opens and closes the work-side take-up shaft 24, and the drive-side flange retainer 42 '.
Are held by the drive-side winding shaft 26.

As the winding of the filament 12 increases, the traverse distance until the traverse of the filament 12 is reversed after the flange sensors 38, 38 'detect the outer edges of the inner surfaces of the flanges 23, 23'. In order to do so, the CPU controller is installed with the program set in advance. This program is selectively used for each type of winding bobbin.

As shown in FIG. 3, the inner width of the take-up bobbin 22 is W, and a constant strain amount given by pressing is given regardless of the actual strain amount X (see FIG. 5) of the flanges 23 and 23 '. Y The actual distortion amount X is W = 110 (m
In the case of the winding bobbin of m), there is a variation of ± 0.2 (mm). Therefore, the distortion amount Y due to the forced pressing is set to be larger than the actual inward distortion amount X. In FIG. 3, Z indicates the distance between the linear member 12 on the traverser pulley 36 and the flange sensors 38, 38 '.

Next, referring to the operation of the method of the present invention, a predetermined winding bobbin 22 is attached to the filament winding device 10, a program suitable for the winding bobbin 22 is selected, and the filament 12 is fed from the feeding bobbin 16. The winding start end of the linear body 12 is fixed to the winding bobbin 22 by passing through the guide pulley means 18 and the traverser 28, and the driving side winding shaft 26 is driven to start the winding operation. As shown in FIG. 3, a predetermined amount of inward strain is applied to the flanges 23 and 23 'of the winding bobbin 22 by the annular pressing ribs 42a and 42'a of the flange retainers 42 and 42'.

At the time of winding the first layer, as shown in FIG.
The filament 12 is wound on the winding bobbin 22 while being traversed by the traverser 28. However, in the vicinity of the flange 23 or 23 ′, the flange sensor 38 or 38 ′ that moves integrally with the traverser pulley 36 is connected to the flange 23 or 23 ′.
Or after detecting the outer edge of the inner surface of 23 ', the traverser 28
Traverses the filament 12 by a distance (Z + Y) further toward the flange 23 or 23 ', and then reverses the filament 12 so as to fold it.

In this way, the second-layer filament is wound on the first-layer filament. In this case, as already mentioned, the flange sensor 38 is wound as the filament 12 becomes thicker. ,
After 38 ′ detects the outer edges of the inner surfaces of the flanges 23 and 23 ′, the traverse distance until the traverse of the filamentous body 12 is reversed is controlled so as to sequentially decrease from (Z + Y) of the first layer.

Thus, the flange 2 of the winding bobbin 22
When 3 and 23 'are forcibly pressed inward and a certain amount of strain is applied to the flange of the winding bobbin, the empty winding bobbin 22
Since the relationship between the flange detection position and the turn-back position can be kept constant without being affected by the strain direction and amount of the flanges 23, 23 ', the linear body 12 is turned back according to the flange detection position. be able to.

Further, the traverse distance until the traverse of the filament 12 is reversed after the flange sensors 38, 38 'detect the outer edges of the inner surfaces of the flanges 23, 23' as the filament 12 becomes thicker. Then, take-up bobbin 2
The distortion of the inner side of the second flange 23, 23 'corrects that the position at which the filament 12 should be folded next is inside the position at which it should be folded forward.

Similarly, due to the strain on the outside of the flanges 23, 23 'of the winding bobbin 22, the amount of expansion of the flanges 23, 23' detected by the flange sensors 38, 38 'is larger than the actual folding position. It is also compensated for being too large.

In this way, the filaments 23, 23 'are given a certain amount of strain, and the amount of bending of the filament is corrected by the internal and external strain of the flanges 23, 23' of the winding bobbin 22. Striatum 1 from the beginning to the end of body 12
2 can be wound in a flat shape.

[0030]

According to the present invention, as described above, the flange of the take-up bobbin is forcibly pressed inward to apply a certain amount of strain to the flange of the take-up bobbin to wind the filament. Therefore, the filament body can be folded back according to the flange detection position to avoid the protrusion of the filament body without being influenced by the direction and amount of the distortion of the flange of the winding bobbin.

Further, since the traverse distance until the traverse of the filament is reversed after the flange sensor detects the flange as the filament becomes thicker, the amount of inward distortion of the flange of the winding bobbin is reduced. Is corrected, and also an excessive outward distortion of the winding bobbin is corrected.

Therefore, the filament body is automatically wound in a flat form from the beginning to the end without being affected by the distortion of the flange of the winding bobbin and without manually adjusting the flange sensor. There is a real benefit that can be rolled up.

[Brief description of drawings]

FIG. 1 is a front view of a filament body winding machine used in a traverse control method of the present invention.

FIG. 2 is a side view of a filament body winding machine used in the traverse control method of the present invention.

FIG. 3 is an enlarged front sectional view showing a relationship between a winding bobbin and a traverse for explaining the method of the present invention.

FIG. 4 is a side view of a portion similar to FIG.

FIG. 5 is an enlarged front sectional view similar to FIG. 3, but showing the winding start state of the prior art.

FIG. 6 is an enlarged front sectional view similar to FIG. 3, but showing the winding end state of the prior art.

[Explanation of symbols]

 10 wire rod winding machine 12 wire rod 14 machine frame 16 feeding bobbin 18 guide pulley means 20 winding machine body 22 winding bobbin 23 flange 23 'flange 24 working side winding shaft 26 drive side winding shaft 28 traverser 30 Traverser drive shaft 32 Carriage 34 Mounting arm 36 Traverser pulley 38 Flange sensor 38 'Flange sensor 42 Flange retainer 42a Annular pressing rib 42' Flange retainer 42'a Annular pressing rib

Claims (1)

[Claims] 1. When winding a filament on a take-up bobbin while traversing the filament, the filament sensor detects the outer edge of the inner surface of the flange of the take-up bobbin, and then traverses the filament at a predetermined traverse distance. In the traverse control method of the filament winding machine that reverses the traverse of the body,
While forcibly pressing the flange of the winding bobbin inwardly to impart a certain amount of strain to the flange of the winding bobbin, wind the filament body around the winding bobbin, as the filament body becomes thicker. A traverse control method for a filament winding device, wherein after the flange sensor detects the outer edge of the inner surface of the flange, the traverse distance until the traverse of the filament is reversed is sequentially reduced.