JP3171229B2 - Wire rod tension damping device - Google Patents

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 tension damping device for damping the tension of a wire drawn from a nozzle in a winding device.

[0002]

2. Description of the Related Art A winding device for guiding a wire through a nozzle and winding the wire drawn from the nozzle around a coil bobbin is provided with a tension device for applying an appropriate tension to the wire.

On the other hand, for example, when a wire is entangled with a terminal of a bobbin or when the wire is grooved in a predetermined groove of the bobbin, a hook is inserted into a predetermined recess or groove to change the direction of the wire. When performing, it is necessary to loosen the tension of the wire rod to an appropriate one.In this case, the wire rod is temporarily loosened by loosening the braking force of the tension device and the back tension of the tension bar. We do so-called tension release.

[0004]

However, depending on such a tension release, in the case of a wire having a high rigidity such as a thick line, the wire is loosened by the tension device to a portion of the wire drawn out from the nozzle. The wire rod is in a state of being loosened on the way to the nozzle. As a result, the tension of the part where the important wire is pulled out from the nozzle does not attenuate, and the tension of this wire causes the terminal to bend, the grooving not to be performed properly, and the hooking not to be hooked. turn into.

[0005] In order to cope with such a situation, for example, a wrapping tool may be used, but this makes the apparatus complicated and expensive.

[0006] The present invention focuses on such a problem,
It is an object of the present invention to provide a wire tension attenuating device that can reliably attenuate the tension of a wire drawn from a nozzle.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a winding device for winding a wire fed from a nozzle onto a coil bobbin, a guide means for guiding the wire, and a wire guided by the guide means to the nozzle. A holding means for holding the holding means just before being guided, and a moving means for moving the holding means with respect to the guide means , wherein the nozzle is fixed to the guide means, and the nozzle is provided with the guide means and the holding means Three-dimensional moving means for integrally moving the tension damping mechanism in a three-dimensional direction is provided.

[0008]

[0009]

[0010]

According to the present invention , the nozzle is three-dimensionally moved by the three-dimensional moving means.
The winding operation is performed by arbitrarily moving in the direction . In this case, the tension is formed by the guiding means and the holding means.
Since the damping mechanism moves integrally with the nozzle , if the holding means holds the wire guided by the guide means and raises and lowers the holding means by the moving means, the amount of the wire fed from the guide means is adjusted. Therefore, the tension of the wire during the winding operation can be appropriately attenuated.

[0011]

[0012]

[0013]

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

FIG. 1 is a perspective view of a tension damping device according to the present invention, FIG. 2 is a side view, and FIG. 3 is a front view.

As shown in these figures, an upper plate 1 and a lower plate 2 are arranged in parallel on the upper and lower sides of the apparatus, and these are connected and fixed by a pair of shafts 3. These form guide means for the wire 21.

That is, a through hole 4 is provided in the upper plate 1, and the through hole 4 is provided by a wire source (not shown).
The wire 21 is guided and penetrates. In addition,
A cylindrical guide 5 made of ceramic or the like is fixed to the through hole 4 to smooth the movement of the wire 21 sliding inside the guide 5 and prevent the wire 21 from being damaged. .

On the other hand, the lower plate 2 is provided with a mounting hole 7 for a nozzle 6 , into which the nozzle 6 is inserted and fixed by screws from the side. After passing through the nozzle 6 , the wire 21 is guided to a coil bobbin (not shown) below the lower plate 2 to form a winding.

A pair of shafts 3 extending in the vertical direction
Is a wire 21 between the upper plate 2 and the lower plate 2
The clamper 8 penetrates a pair of sliding holes 9 of a clamper 8 for clamping, and the clamper 8 is slidable between the upper plate 1 and the lower plate 2.

An end of the clamper 8 is attached to a part of a timing belt 12 wrapped around pulleys 10 and 11 rotatably supported on the upper plate 1 and the lower plate 2, respectively. , Lower pulley 1
1 is a servo motor 13 fixed to the lower plate 2
The timing belt 12 circulates in accordance with this rotation, so that the timing belt 12 is moved up and down. The operation of the servo motor 13 is controlled by a computer.

The method of driving the clamper 8 in the vertical direction is not limited to such a method. For example, a ball screw may be integrated with the clamper and the ball screw may be rotated by a motor.

The clamper 8 is provided at a position corresponding to the wire 21 as a holding means for holding the wire 21 as a receiving plate 14.
And a pusher 15. The wire 21 includes a tip of a pusher 15 extending forward from the clamper 8 and the wire 2.
1 The pusher 15 which is a telescopic rod portion of a pusher driving cylinder 20 fixed to the clamper 8 is in a state of being sandwiched from the front and back by a receiving plate 14 formed so as to wrap forward. By being driven toward the receiving plate 14 by the drive of 20, the holding member 14 is sandwiched between the receiving plate 14 and the pusher 15. With the wire 21 clamped in this manner, the servo motor 1
By controlling the computer 3, the clamper 8 is appropriately raised and lowered, and the wire 21 is pulled up or down. Therefore, the amount of the wire 21 pulled out from the nozzle 6 and the state of loosening can be appropriately controlled. it can.

The holding means of the wire 21 is not limited to the above-described one. For example, a pair of openable and closable clamp plates may be opened and closed by a cylinder, and the wire 21 may be sandwiched between these.

The tension attenuating device includes a base 1
6, and is connected to a three-axis moving mechanism (not shown) so that it can move freely in three-dimensional directions. In this case, the nozzle 6 moves integrally with the tension damping device. By controlling this movement, the wire 21 drawn from the nozzle 6 can be wound around a coil bobbin.

The winding device includes a cutter 17 for cutting the wire 21, a cutter opening / closing cylinder 18 for driving the opening / closing operation of the cutter 17 for cutting the wire 21, and a cutter moving unit for moving the cutter 17. A cylinder 19 is provided integrally with the tension damping device. However, the cutter 17, the cutter opening / closing cylinder 18, and the cutter moving cylinder 19 do not necessarily have to be integrated with the tension damping device, and may be provided independently of the tension damping device.

[0025] The nozzle 6 does not need to be fixed to the lower plate 2 as in this embodiment, provided with a nozzle 6 independently of the tension damping device, for example, lower plate 2
It is also possible to adopt a configuration in which the wire 21 fed out through is guided to the nozzle 6 which is connected to the three-axis moving mechanism and can move freely in the three-dimensional direction.

Furthermore, the upper plate 1 as in the present embodiment, without providing a guide means such as a lower plate 2, cylinder
The front wire 21 (or the cylindrical guide)
The wire 21) guided to the guide 5 is , for example,
It is also possible to adopt a configuration in which the holding means is held by such a holding means and the holding means is raised and lowered.

Next, the operation will be described.

A wire 21 (not shown) is guided from a wire source (not shown) to a tension attenuator, and the wire 21 fed from the tip of the nozzle 6 fixed to the tension attenuator is provided with appropriate locking means (for example, disposable wire) at the tip. In this state, the tension damping device to which the nozzle 6 is fixed is moved by using a three-axis moving mechanism, and the wire 21 at the portion between the tip and the nozzle 6 is moved. , Wound on a coil bobbin to produce a coil.

At this time, for example, hooking in which the wire 21 is entangled with the terminal of the coil bobbin, the wire 21 is grooved in a predetermined groove of the bobbin, or hooked in a predetermined recess or groove in order to change the direction of the wire 21. Although it is necessary to perform the operation, the tension attenuating device is operated to adjust the tension of the wire 21 fed from the nozzle 6 so as to attenuate appropriately.

That is, when the wire 21 is entangled with the terminal, the pusher 15 is advanced by the operation of the pusher driving cylinder 20, the wire 21 is clamped between the receiving plate 14 and the pusher 15, and then the servo motor is driven. 13 actuates the lowers the clamper 8, the wire rod from the nozzle 6 21
Is fed out by a predetermined amount. Thereby, the tension of the wire 21 is relaxed.

In this case, since the tension of the wire 21 is attenuated by the tension attenuator provided immediately before the nozzle 6 , even if the wire 21 has a large rigidity such as a thick wire having a large diameter. The tension of the wire 21 fed from the nozzle 6 is surely loosened. For example, when the wire 21 is entangled with the terminal, the terminal loses the wire 21 and is bent, grooving is not properly performed, or hooking is not performed. It doesn't get caught.

In particular, in the case of hooking, the nozzle
After moving 6 to the vicinity of the hooking position, the wire rod 21 is extended from the nozzle by operating the tension damping device,
It is effective to hook the wire 21.

For example, in order to correct the looseness of the wire 21 tied to the terminal after the wire 21 is tied, the clamper 8
Is actuated again, and the clamp 21 is lifted in a state where the wire 21 is clamped by the receiving plate 14 and the pusher 15, so that the wire 21 is given a tension and loosened.

According to the present invention, the three-dimensional moving means includes a nozzle.
By any move in the three-dimensional direction, although the winding operation is performed, in this case, the guide means consists of holding means Ten
Because Deployment damping mechanism moves the nozzle integrally, while held by the holding means a wire which is guided by the guide means, if the lifting of the holding means by the moving means, the feeding amount of the wire fed out of the guide means It can be adjusted, so that the tension of the wire during the winding operation can be properly damped.

[0035]

[0036]

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a front view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper frame 2 Lower frame 3 Shaft 4 Through hole 6 Nozzle 7 Mounting hole 8 Clamper 9 Sliding hole 10 Pulley 11 Pulley 12 Timing belt 13 Servo motor 14 Receiving plate 15 Pusher 20 Pusher driving cylinder 21 Wire rod

Continuation of the front page (56) References JP-A-7-312323 (JP, A) JP-A-1-112718 (JP, A) JP-A-2-18915 (JP, A) (58) Fields investigated (Int .Cl. ⁷ , DB name) H01F 41/06

Claims (1)

(57) [Claims] 1. A winding device for winding a wire fed from a nozzle around a coil bobbin, a guide means for guiding the wire, and a holding means for holding the wire guided by the guide just before being guided to the nozzle. When, and a moving means for moving said holding means relative to said guide means, to fix the nozzle to said guide means, and said nozzle, the guide means, the three-dimensional tension damping mechanism comprising a holding means integrally A tension reducing device for a wire rod, comprising three-dimensional moving means for moving in a direction.