JPH0395074A - Wire takeup device - Google Patents

Abstract

PURPOSE:To facilitate clamping and release of the wind start end of a wire and simplify the structure by bearing a winding drum provided with in insert hole for the wins start end of wire by a rotary drive shaft, and allowing it to rotate in both directions, regularly and reversely. CONSTITUTION:A rotary drive shaft 21 bears rotatably a winding drum 25 having an insert hole 39 for the wind start end of a wire, and this drum 25 is fitted with a clamp piece 41, whose tip can intrude into and comes out of the mentioned insert hole 39, a braking means (brake wheel, brake band 29) for applying brakes to the drum 25 rotating, and a clamp piece actuating mechanism (cam 33, coil spring 51). The drive shaft 21 is rotated in regular direction, and the clamp piece 41 is protruded into the insert hole 39 to clamp the wind start end of the wire situated therein, and the drum 25 is rotated to perform taking-up of the wire 37. The drive shaft 21 is rotated reversely, and the clamp piece 41 is retreated to disengage the clamping of the wind start end, and the drum 25 rotating is stopped. This enables clamping and release of the wind start end and also rotating and stopping of the winding drum 25 using only a single line of the power supply system to the rotary drive shaft 21.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for winding up a filamentous body such as an electric wire, a strip, or a tape.

[Prior art]

In general, a filament winding device uses a clamp mechanism installed on the winding drum to clamp the winding start end of the filament, then rotates the winding drum to wind the filament, and when a predetermined amount of winding is reached, After stopping the rotation of the winding drum, the clamp at the beginning of winding the filament is released and the wound coil is removed. That is, the filament winding device requires an operation of clamping or releasing the winding start end of the filament, and an operation of rotating or stopping the winding drum.

For this reason, conventional wire winding devices have a structure in which the clamping mechanism is operated by an air cylinder or the like built into the winding drum, and the winding drum is rotated by a motor. [Challenges] However, such a structure requires two power supply systems, and in addition, the clamp mechanism has an air cylinder etc. built into the winding drum, so it is difficult to transfer power between the stationary body and the rotating body. There is a need to do. For this reason, conventional winding devices have a complex structure as a whole, which not only increases equipment costs, but also causes breakdowns and unreliable automatic operation. [Means for Solving the Problems and Their Effects] The present invention provides a wire winding device that solves the above-mentioned problems. a winding drum that is attached to the winding drum and has a insertion port for a starting end of the wire winding; a clamp piece that is incorporated into the winding drum so that its tip goes in and out of the insertion port; The clamp piece actuating mechanism includes a braking means for applying a brake and a clamp piece actuating mechanism that is integrally attached to the drive shaft, and the clamp piece actuating mechanism advances the clamp piece when the drive shaft rotates in the forward direction, and inserts the tip of the clamp piece. It protrudes into the mouth and clamps the winding start end of the filament in the insertion slot, while transmitting rotational force to the winding drum. When the drive shaft rotates in the opposite direction, the clamp piece is moved back and clamps the winding start end of the filament. It is characterized by the fact that the precept has been given in such a way that the

In this way, a single power supply system to the rotary drive shaft can clamp and release the winding start end of the filament, rotate and stop the winding drum, and the structure is extremely simplified. [Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Figure 1 is a front view of a wire winding device according to an embodiment of the present invention, Figure 2 is a side view taken along the line ■-■ in Figure 1, and Figure 3 is an enlarged front view of the main parts. 4 is a cross-sectional view taken along the line ■■ in Figure 3. In the figure, 11 is the frame of the device, 13 is the motor, 1
5 is a booley, l7 is a belt, and 19 is a drive shaft that rotates together with the booley 21. W.A.
The moving shaft 21 is supported by a bearing 23 fixed to the frame l1.

25 is a winding drum rotatably attached to the drive shaft 21;
7 is a brake wheel formed integrally with the winding drum 25; 2;
9 is a brake band wrapped around the brake wheel 27 about half a circumference. One end of the brake band 29 is shown in Figure-1.
As shown in the figure, it is fixed to the frame 11, and the other end is connected to the frame 11 via a spring 31, and the tension of the spring 31 applies a required braking force to the winding drum 25. A cam 33 is integrally attached to the tip of the drive shaft 21, and the cam 33 is located in a recess 35 formed in the center of the front surface of the winding drum 25. Reference numeral 37 denotes a filament, such as a tape electric wire, to be wound around the winding drum 25; 39, an insertion opening at the start end of the tape electric wire 37 shaped into a winding v425; and 41, a wire is wound so that its tip enters and exits into the insertion opening 39. The clamp piece 43 incorporated into the body 25 is a rubber plate embedded in the insertion port 39 at a position facing the tip of the clamp piece 4l. The volume 1i 125 is composed of two members 25A and 25B as shown in FIG. 7 in order to incorporate the clamp piece 41 therein. A clamp piece 41 is attached to one member 25A.
The other member 25B is formed with a hole 45 through which the insertion port 39 and the tip of the clamp piece 41 pass through. These two members 25A and 25
B is integrated with a bolt 49 as shown in Figures 1 and 3. It will be done. A coil spring 51 is housed in a compressed state together with the clamp piece 41 in the hole 45 of the one member 25A, and the clamp piece 4l receives the repulsive force of the coil spring 51 at the flange portion at the rear end, so that the clamp piece 4l is always kept at the center of the winding drum 25. is being energized towards.

The outer periphery of the cam 33 is formed with a cam surface a that slides on the rear end surface of the clamp piece 41 and moves the clamp piece 4l, and two abutment surfaces b-C that are substantially perpendicular to each other. Further, the winding drum 25 is provided with adjustment screws 53 and 55 for regulating the rotation angle of the cam 33 within the recess 35.

One of the adjustment screws 53 can be adjusted by rotating the cam 33 in the normal direction (clockwise in the figure) with respect to the winding drum 25 when the winding start end of the 1lt wire of the tape is not inserted into the insertion port 39 as shown in FIG. 5, for example. ), and the tip of the clamp piece 41 is attached to the rubber plate 4.
The cam 33 is adjusted so that it comes into contact with one abutment surface b of the cam 33 when it is advanced (raised) to a position where it abuts the cam 33. In addition, the other adjustment screw 55 is fixed when the cam 33 rotates in the opposite direction relative to the barrel 25 (counterclockwise in the figure) and separates from the clamp piece 41, as shown in FIG.
It is adjusted so that it comes into contact with the other abutment surface C of No.3. Therefore, if the cam 33 is further rotated forward from the state shown in FIG. 5, the winding U425 will rotate forward together with the cam 33, and
If the cam 33 is further rotated in the reverse direction from state 6, the winding drum 25
will rotate in the opposite direction together with the cam 33. In order to stop the winding drum 25 in a fixed position when the winding start end of the tape T-wire 37 is inserted into the insertion port 39, a proximity switch 57 is attached to the bearing 23 as shown in FIG. is installed. When the proximity switch 57 detects the protrusion 59, the rotation of the motor 13 is stopped, and the winding drum 25 is stopped at the position shown in FIG. 1l. In order to facilitate insertion of the winding start end of the tape electric & I 37 into the insertion opening 39, an insertion guide 61 is attached to the frame l1 as shown in FIG. 1.

In addition, in order to prevent the tape wire wound on the winding drum 25 from coming loose, press the presser roll 6 as shown in Figure 1.
3 are provided. This pressing roll 63 has a fixed shaft 6
It is supported at the tip of an arm 67 that rotates around 5,
It is pressed against the circumferential surface of the iUq 25 by a spring 69.

Next, the operation of this device will be explained.

When the winding start end of the tape electric wire 37 is inserted into the insertion port 39 of the winding drum 25, the winding drum 25 and the cam 33 are in a positional relationship as shown in FIG. In other words, the tip of the clamp piece 41 does not protrude into the insertion port 39. In this state, after inserting the winding start end of the tape D&I 37 all the way into the insertion port 39, when the drive shaft 21 is rotated in the forward direction (clockwise in the figure), the winding drum 25 is braked by the brake band 29 and the brake wheel 27. , so at first only the cam 33 rotates forward, moving the clamp piece 4l forward (pushing it up). The tip of the clamp piece 4l is shown in Figure-3.
When the tape electric wire 37 is advanced until it hits the rubber plate 43 as shown in FIG. When the cam 33 further rotates, the rotational force is transmitted to the winding drum 25 via the clamp piece 41, the tape electric wire 37, and the rubber plate 43, and the winding drum 25 begins to rotate against the braking force. As a result, the tape i-line 37 is wound around the cylinder 25. The clamping force at the winding start end of the tape electric wire 37 can be adjusted by adjusting the braking force, that is, the tension of the brake band 29. The tape was cut to a predetermined length in the previous process! 37 is wound up to the end, stop the rotation of the drive shaft 21,
Next, the drive shaft 21 is rotated nearly 90 degrees in the opposite direction. Then, the winding drum 25 does not rotate because of the braking force, and the cam 33
Since only the coil spring 5 rotates in the opposite direction, the clamp piece 21
1 and returns to the state shown in Figure 6, and the clamp at the winding start end of the tape wire 37 is released. This allows the coiled tape electric wire to be removed from the winding drum 25. The above is one example of the present invention, and the present invention is not limited thereto. For example, as shown in FIG. 8, the clamp piece 4l can be moved forward and backward by a crank mechanism 71 attached to the drive shaft 21. In FIG. 8, the same parts as those in the previous embodiment are given the same reference numerals, so the explanation of the other parts will be omitted. In addition to band brakes, there are other means of braking the winding drum.
Disc brakes, electromagnetic brakes, etc. can be used. Furthermore, it can also be applied to winding wires other than tape wires. [Effects of the Invention] As explained above, according to the present invention, by simply rotating the drive shaft in the forward direction, the winding start end of the filament is clamped, and the winding cylinder is rotated to wind the filament. The clamp at the start end of the filament can be released by simply rotating the drive shaft in the opposite direction. Therefore, the structure of the device becomes extremely simple, reducing costs, reducing failures, and increasing reliability for automatic operation.

[Brief explanation of drawings]

Figure 1 is a front view showing the overall configuration of a striatum winding device according to an embodiment of the present invention, Figure 2 is a side view taken from line 1 and 3 of Figure 1, and Figure 3 is the same. Front view showing main parts of the device, Figure-4
is a sectional view taken along line ■-IV in Figure 3, Figures 5 and 6 are front views showing the movement of the cam of the device, and Figure 7 is an exploded front view of the winding drum of the device. -8 is a front view showing main parts of a winding device according to another embodiment of the present invention. 21: Drive shaft 25: Winding drum 27: Brake wheel 2
9: Brake band 33: Cam 37: Tape wire 39: Inlet 41: Clamp piece 43: Rubber plate 51: Coil spring 7
1: Crank mechanism Fig. 13 ■ Fig. 15 Fig. 17 Fig. 14 27 Fig. 16 Fig. 8 2 J)

Claims (1)

[Scope of Claims] 1. A rotational drive shaft, a winding drum rotatably attached to the drive shaft, and having a part of it with an insertion port at the start end of the winding of the filament;
A clamp piece is incorporated into the winding drum so that its tip goes in and out of the insertion port, a braking means for braking the rotation of the winding drum, and a clamp piece actuating mechanism integrally attached to the drive shaft. The clamp piece actuating mechanism advances the clamp piece when the drive shaft rotates in the forward direction, causes its tip to protrude into the insertion port, clamps the winding start end of the filament in the insertion port, and rotates it to the winding drum. A wire winding device characterized in that, when a force is transmitted and the drive shaft rotates in a reverse direction, a clamp piece is moved backward to release a clamp at a winding start end of the wire. 2. The device according to claim 1, wherein the clamp piece actuating mechanism comprises a cam. 3. The device according to claim 1, wherein the clamp piece actuating mechanism comprises a crank mechanism.