JPH04317961A - Wire rolling device - Google Patents

Abstract

PURPOSE:To prevent a wire from being wound in poor performance by sensing the flange positions on both sides of a bobbin using sensing means installed on both sides of a guide means immediately before the guide means reaches the reversal position, and controlling the reversing and accelerating timing of guide means in accordance with the results from sensing. CONSTITUTION:Proximity sensors 50, 60 are installed at the two ends of a traverser 20 on a spiral shaft 30 and moved on the spiral shaft 30 in the condition that the traverser 20 is held at a certain spacing. When the sensors 50, 60 reach right over flanges 24, 26 of the bobbin 22, the position of traverser 20 is sensed. In conformity to a sensing signal thus emitted, the reversal timing of traverser 20 and the acceleration timing at the time of reversal are calculated, and the reciprocative motions are controlled by a motor 32. This permits omitting the rolling monitoring done by an operator to enhance the working efficiency and securing good performance of wire rolling operation.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire winding device for winding a wire around a bobbin, and more particularly, the present invention relates to a wire winding device that winds a wire around a bobbin, and more particularly, the present invention relates to a wire winding device having adjustment means for winding the wire well between flanges at both ends of the bobbin. Regarding equipment.

0002

2. Description of the Related Art Generally, after a wire rod such as an electric wire has been subjected to a predetermined process (e.g., enamel coating), the wire rod is wound around a bobbin by a wire winding device and then transported out. FIG. 5 shows the configuration (concept) of a conventional wire winding device, and FIG. 6 shows the configuration of essential parts of the device shown in FIG.

In the conventional wire winding device 10 , the wire 12 is taken off by a take-up capstan 16 of a take-up machine 14 and guided from the capstan 16 to a take-up machine 18 . In the winder 18, the wire 12 is moved through a traverser 20.
The film is wound onto the winding bobbin 22 while being guided by the winding bobbin 22.

The winding bobbin 22 has flanges 24 and 26 at both ends, and is rotated by a winding motor 28 to wind the wire 12 between the flanges 24 and 26 while applying a constant tension to the wire 12. It has become. The traverser 20 has a helical shaft 3
0, and is reciprocated in the axial direction of the bobbin 22 by forward and reverse rotation of the helical shaft 30 by the drive motor 32,
This allows the wire 12 to be wound around the bobbin 22 in an orderly manner.

Limit switches 34 and 36 are arranged at positions corresponding to the flanges 24 and 26 of the bobbin 22, respectively, and when the traverser 20 reaches the limit switches 34 and 36, detection signals are output from the switches 34 and 36. Output. Then, based on this output signal, the drive motor 3
2, thereby reversing the direction of rotation of the traverser 20.
is designed to move in the opposite direction.

Therefore, in the conventional wire winding device 10 as described above, the winding state of the wire 12 varies greatly depending on the position accuracy of the limit switches 34, 36, etc. For example, due to misalignment of the set positions of the bobbin 22 and limit switches 34, 36, or due to loads during winding work, the relative positions of the bobbin 22 and limit switches 34, 36 may change as shown in FIG. 7(a). If a discrepancy occurs,
The reversal timing of the traverser 20 is shifted, and a valley V is formed on the flange 24 side due to insufficient winding of the wire as shown in FIG. Put it away.

Furthermore, even if the limit switches 34 and 36 are set correctly at the beginning of winding the wire 12, as the amount of winding of the wire 12 increases, the flanges 24 and 26 of the bobbin 22 are exposed to the wire 12 from the lateral direction. When a load is applied and the flanges 24 and 26 spread to the left and right as shown in FIG. 8(a), a valley is formed on the inner end surface of the flanges 24 and 26 due to insufficient winding as shown in FIG. 8(b). Section V is formed.

Furthermore, when the winding speed is increased, that is, the moving speed of the traverser 20 is increased, the limit switches 34, 36 and the bobbin collars 24, 2 are activated as shown in FIG. 9(a).
Even if the relative position of the flange 6 is accurate, a peak H is formed inside the flanges 24 and 26 as shown in FIG. Such a phenomenon is remarkable when a pulse motor such as a stepping motor is used.

In order to prevent such winding abnormalities, conventionally, an operator has monitored the winding condition at any time and adjusted the positions of the limit switches 34 and 36.

0010

However, in the conventional wire winding device as described above, the operator constantly monitors the winding state and adjusts the positions of the limit switches 34 and 36. The winding work itself becomes very complicated, and it is difficult to perform the adjustment work accurately, so there is a high possibility that winding defects will occur.

[0011]

OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a wire winding device which has excellent working efficiency and can always wind up a wire well.

0012

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a drive means for reciprocating the guide means along the axis of the winding bobbin in a predetermined direction and speed, and a drive means disposed at both ends of the guide means. and moves together with the guide means while maintaining a constant distance from the guide means, and detects the positions of the two flanges, respectively, just before the guide means reaches positions corresponding to the flanges at both ends of the winding bobbin. two detection means;
a control means that calculates the timing of reversal and speed increase when changing the direction of the guide means based on the detection signals of these detection means, and supplies control signals corresponding to these reversal and speed increase timings to the drive means; It is equipped with

[0013]

[Operation] As described above, the present invention detects the position of the flanges by the detection means immediately before the guide means reaches the reversal position (the position of the flanges at both ends of the winding bobbin), and based on the detection result. Since the movement of the guide means is controlled according to the required reversal and acceleration timing, the precision of the reversal timing of the guide means is improved, and there is no possibility of poor winding of the wire due to response delay of the guide means. Monitoring of the winding state can be omitted. Further, since the guide means is configured to move at an increased speed only when the winding is reversed, insufficient or excessive winding of the wire does not occur inside the collar of the winding bobbin.

That is, for example, when one of the detection means detects the collar of the bobbin on the same side, a detection signal is supplied from the detection means to the control means. Then, the control means calculates the time until the reversal of the guide means based on this detection signal, the moving speed of the guide means, and the predetermined interval between the guide means and the detection means, and after the elapse of this time, the drive means Outputs an inverted signal. As a result, the driving direction (rotation direction) of the driving means is reversed, and the moving direction of the guide means is changed at an appropriate timing. The control means also calculates an acceleration time for increasing the moving speed of the guide means from the relationship between the diameter of the wire and the moving speed of the guide means, and simultaneously outputs a speed increase signal corresponding to this time with the reversal signal. Supply to the drive means. Then, by increasing the moving speed of the guide means only for a moment when the driving means is reversing, defective winding at the reversal timing can be prevented.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows the configuration of a wire winding device according to an embodiment. Note that the details of parts that are the same as those in the prior art described above will be omitted, and the description will focus on the characteristic parts of the present invention.

The wire winding device 40 includes a take-up unit (14, 16) for taking off the wire 12 formed to a predetermined diameter;
A winding unit (22, 28) that winds the wire 12 taken up by the take-up capstan 16, and a guide unit (20, 30, 32) that guides the wire 12 to the winding bobbin 22.
, 50, 60, 70).

In addition to the conventional traverser 20, helical shaft 30, and drive motor 32, the guide unit also includes a bobbin 2.
Proximity sensors 50, 6 for detecting the positions of the second collars 24, 26
0, and a control device 70 that controls the drive motor 32 based on the output signals of these sensors 50 and 60. Note that the drive motor 32 is a high-torque pulse motor or a servo motor whose rotational speed can be detected, in consideration of increasing the speed at the time of reversal as will be described later.

FIG. 2 shows guide units (20, 30,
32, 50, 60, 70) The detailed configuration of the periphery is shown. The proximity sensors 50 and 60 are respectively disposed at both ends of the traverser 20 on the helical shaft 30, and as the traverser 20 moves, both sensors 50 and 60 move along the helical shaft 30 while maintaining a constant distance from the traverser. It is supposed to move. At this time, the traverser 20
moves at a constant pitch in proportion to the diameter of the

[0019] The detection parts of the proximity sensors 50 and 60 (
When the lower end) reaches directly above the flanges 24 and 26 of the bobbin 22, output signals SA and SB are supplied to the control device 70. Specifically, the sensor 50 detects the position of the collar 24 when the traverser 20 moves to the left, and the sensor 60 detects the position of the collar 26 when the traverser 20 moves to the right. That is, both sensors 50 and 60 precede the traverser 20, and the center of the traverser 20 is located at the collar 24 and 2 of the bobbin 22.
The position of the traverser 20 is detected before reaching the inner surface of the traverser 6.

Based on the detection signals from the proximity sensors 50 and 60, the control device 70 calculates the reversal timing of the moving direction of the traverser 20 and the speed increase timing when the traverser 20 is reversed. Then, the inverted drive signals SR1, SR
2 and speed increase signals SF1 and SF2 are supplied to the drive motor 32 to control the reciprocating movement of the traverser 20.

Next, the operation and effect of the embodiment configured as above will be explained with reference to FIGS. 3 and 4. Note that FIG. 3 shows a state in which the traverser 20 is moving to the left.

When winding the wire 12, the winding motor 28 rotates the winding bobbin 22, and at the same time,
The rotation of the drive motor 32 causes the traverser 20 to move left and right. When the traverser 20 moves to the left and the left proximity sensor 50 detects the left bobbin collar 24, the sensor 50 outputs a detection signal SA to the control device 70.

The control device 70 calculates the time T until the traverser 20 is reversed based on the detection signal SA. This time T is the time from when the sensor 50 detects the bobbin flange 24 until the central part of the traverser 20 reaches the inner surface of the flange 24. support position) and sensor 5
0, but in this embodiment, since L is constant, it is uniquely determined only by the moving speed of the traverser 20.

Furthermore, after the time T has elapsed, the inverted signal S
R1 and the speed increase signal SF1 are simultaneously outputted to the drive motor 32, thereby causing the drive motor 32 to rotate in the reverse direction, and the traverser 20 to change its direction to the right and move. At this time, the speed increase signal SFI from the control device 70 is output for a certain period of time TX. In this embodiment, the traverser 20
moves at a constant pitch in proportion to the diameter of the wire 12, so the time TX is determined by dividing the wire diameter of the wire 12 by the moving speed of the traverser 20. Further, the speed increase rate of the traverser 20 is approximately 2.0 to 4.0 times the normal speed.

After that, the traverser 20 moves to the winding bobbin 22.
Similarly, when reaching the right side guard 26, the proximity sensor 6
A detection signal SB is output from 0 to the control device 70,
The control device 70 sends an inversion signal S to the drive motor 32.
R2 and speed increase signal SF2 are supplied, and the same operation as above is performed. By repeating such an operation, the wire rod 12 is efficiently and orderly wound around the winding bobbin 22.

Note that in the above embodiment, the bobbin collar 2
Although proximity sensors 34 and 36 are used as detection means for sensors 4 and 26, other sensors may be used as long as they have similar functions.

[0027]

As explained above, the wire winding device according to the present invention includes a drive means for reciprocating the guide means along the axis of the winding bobbin in a predetermined direction and speed, and a drive means disposed at both ends of the guide means. and moves together with the guide means while maintaining a constant distance from the guide means, and detects the positions of the two flanges, respectively, just before the guide means reaches the positions corresponding to the flanges at both ends of the winding bobbin. two detection means;
A control means that calculates the timing of reversal and speed increase when changing the direction of the guide means based on the detection signals of these detection means, and supplies control signals corresponding to these reversal and speed increase timings to the drive means. Because it is equipped with
It is possible to omit the need for the operator to monitor the winding state, which has the effect of improving work efficiency. Further, insufficient winding or excessive winding of the wire rod inside the collar of the winding bobbin during reversal is prevented, and good winding operation of the wire rod is always guaranteed.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the configuration of a wire winding device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the configuration of main parts of the embodiment.

FIG. 3 is an explanatory diagram for explaining the operation of the embodiment.

FIG. 4 is a timing chart diagram for explaining the operation of the embodiment.

FIG. 5 is a conceptual diagram showing the configuration of a general wire winding device.

FIG. 6 is an explanatory diagram showing the configuration of a conventional wire winding device.

FIG. 7 is an explanatory diagram showing the operation of the prior art.

FIG. 8 is an explanatory diagram showing the operation of the prior art.

FIG. 9 is an explanatory diagram showing the operation of the prior art.

[Explanation of symbols]

12 Wire rod
20 Traverser 14 Collection machine
22 Take-up bobbin 16 Take-up capstan
24, 26 Tsuba 28 Take-up motor 30 Helical shaft 32 Drive motor 50, 60 Proximity sensor 70 Control device SA, SB Detection signal SR1, SR2 Reversal signal SF1, SF2 Speed increase signal

Claims (1)

[Claims] Claim 1: A winding bobbin for winding a wire, and a guide means for guiding the wire to the bobbin, and by reciprocating the guide means along the axis of the winding bobbin,
In the wire winding device that sequentially winds the wire between flanges at both ends of a winding bobbin, the guide means is moved in a predetermined direction,
a driving means for reciprocating the winding bobbin along the axis of the winding bobbin at a high speed; and a driving means disposed at both ends of the guide means and moving integrally with the guide means while maintaining a constant distance from the guide means; two detection means for detecting the positions of the two flanges, respectively, and a direction change of the guide means based on the detection signal of the detection means, immediately before the winding bobbin reaches a position corresponding to the flanges at both ends of the winding bobbin. 1. A wire winding device comprising: a control means for calculating timings of reversal and speed increase of time, and supplying control signals corresponding to these reversal and speed increase timings to the drive means.