JPH0624690B2 - Wire winding method for wire saw - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a wire winding method for winding a wire around a roll cartridge that constitutes a processing part in a wire saw for precisely cutting a silicon single crystal or the like. Regarding

[Conventional technology]

In general, there is a wire saw as illustrated in FIG. 6, and the wire saw device main body 1 is composed of a base part 2 and a processing equipment installation part 3 installed thereon.

A table 4 on which a workpiece such as silicon is placed is installed on the base portion 2, and the table 4 is vertically controlled by a drive controller 5.

Further, the processing equipment installation unit 3 is provided with a processing unit 6, a wire slack absorbing mechanism 7, a wire guide roller group 8, a wire supply unit 9, a wire winding unit 10, a control board 11, and the like.

The processing section 6 includes three cylindrical rollers (in this example, a total length of 1
Drive rollers 12 and 2 having a 50 mm outer diameter of 80 mm)
The head rollers 13 and 14 are arranged in parallel to each other, and each of the rollers 12, 13 and 14 has a plurality of parallel wire receiving grooves, which are circular grooves, arranged at a predetermined pitch (0 in this example). It is formed by drilling about 7 mm). Then, a special piano wire (diameter of 0.
A wire of about 1 to 0.3 mm) is guided so as to be guided by the guide roller group 8 on the winding start side, and the slack absorbing mechanism 7
It is wound around the processing section 6 via one of the rollers.

In the processing section 6, the wire is started to be wound from the wire receiving groove at the start end of the drive roller 12 and then sequentially wound around the head rollers 13 and 14, and the wire is sequentially passed through the rollers 12, 13 and 14 and the start end portion is wound. From the peripheral groove to the peripheral groove of the terminal end, and the wire is wound so as to form a wire row arranged between the pair of head rollers 13 and 14 in accordance with the pitch of the peripheral groove. It is a thing.

Further, the wire passes through the other roller of the slack absorbing mechanism 7 and is guided by the winding-side guide roller group 8 so that the wire can be wound up by the winding portion 10.

When performing cutting with this device, the processing equipment installation unit 3
Drive the drive roller 12 of the processing unit 6
Is driven to rotate forward and backward, and the slack absorbing mechanism 7 is tilted like a seesaw so that the wire travels back and forth while maintaining a constant tension. Then, the mixed liquid of free abrasive grains and lapping oil is dropped onto the wire row running between the pair of head rollers 13 and 14 of the processing section 6, and the workpiece placed on the table 4 is removed. The table 4 is lifted and fed so as to be pressed to perform cutting or cutting.

[Problems to be solved by the invention]

In such a wire saw device, a work of winding the wire around the roller group 27 of the processing unit 6 is performed when the wire, which is a consumable item, is replenished and replaced. In this winding operation, an extremely thin wire is wound in a narrow wire receiving circumferential groove of each roller group at each pitch in a predetermined manner from the starting end to the terminal end without skipping the wire receiving circumferential groove to form a wire row. It is extremely difficult because it is wound like this, and there is a problem that a skilled worker has to take a long time to perform the winding. Further, since the wire saw device cannot be operated during this work, there is a problem that the improvement of the operating efficiency is hindered.

The present invention has been made in view of the above points, and it is an object of the present invention to newly provide a method for allowing a person other than a skilled worker to easily wind a wire around a roller of a processing section in a short time.

[Means for solving problems]

According to the present invention, the above object is to provide a plurality of rollers having the same configuration, each having an independent annular wire receiving groove arranged in parallel at regular intervals, in parallel with each other with the positions of the wire receiving grooves aligned. A method of automatically winding a wire around a roller group arranged at regular intervals in a spiral shape, in which a wire starting end is spirally wound around a wire receiving groove at one end of the roller group. A guide support is attached to the wire to maintain the wire inter-spacing of the spiral of the wound wire, and inside the guide support, i.e., on the side facing the rollers, along the wire passing through the guide support. Forming a ridge-shaped wire guide, and then rotating the rollers so that the guide support advances in a screw motion around the rollers toward the other end of the roller group, Obtained by By the spiral forward movement of the inner support body at a constant pitch, the wire guided by the wire held by the guide support body is wound around the wire receiving groove in the same spiral state one after another. This is achieved by the wire winding method.

[Action]

According to the method of the present invention as described above, by rotating the rollers of the roller group, the wire is automatically wound in a spiral shape surrounding the roller group with respect to the annular wire receiving grooves provided in parallel with the rollers. Has the effect of wrapping around.

〔Example〕

An embodiment of a wire winding method for a wire saw according to the present invention will be described below with reference to FIGS. 1 to 5. 1 to 5, parts corresponding to those in FIG. 6 are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 is a schematic enlarged perspective view showing a roller group portion in a working portion of a wire saw, which is an essential part of the present invention.
2 is a drive roller, 13 and 14 are head rollers, and these three rollers form a roller group 27.

Each of the rollers 12, 13 and 14 is provided with an independent wire receiving groove 20 having an annular shape in parallel at predetermined intervals. Then, these rollers 12, 13,
At the starting end of 14, the wire 21 is attached to the entire roller group 27.
Is wound around at least one winding (5 windings in this example).

That is, as a method of winding the wire around the roller group 27, there is a method illustrated in FIGS. 3 to 5. First, in the method shown in FIG. 3, a drive roller 12 and one head roller 13 are connected to each other. , The wire 21 is wound around the wire receiving groove 20 provided in a predetermined plane so that the wire receiving groove 20 of one of the head rollers 13 moves forward to the wire receiving groove 20 at the position advanced by one. It is a thing.

Further, in the one shown in FIG. 4, the other head roller 14
The wire 21 is wound so as to move to the wire receiving groove 20 which is advanced by one between the drive roller 12 and the drive roller 12. Further, in the structure shown in FIG. 5, the wire 21 is wound between one head roller 13 and the other head roller 14 so as to move to the wire receiving groove 20 which is advanced by one.

The above-described winding method is not limited to this, and a method similar to this can be adopted, and the wire receiving groove 20 can be wound at a required pitch such as every other one or every two. Of course, you can do that.

The guide support 22 is attached to the spirally wound part.
Put on. The guide support 22 has a rectangular elastic thin plate (in this example, a thin steel plate corresponding to a clearance gauge plate having a thickness of 0.03 mm is used) as a back plate 23. The paper tape 24 with the adhesive 25 so that the wire 21 is caught in the back plate 23.
Attach and configure. At this time, the paper tape 24 is adhered along the shape of several wires 21 placed on the plane of the back plate 23 as shown in cross section in FIG. A plurality of wire guide portions 26 are formed.

As a result, each wire guide portion 26 including a part of the spirally wound wire 21 is configured to maintain a constant gap between the adjacent wire guide portions 26 at that portion.
Further, the back plate 23 and the paper tape 24 forming the guide support 22 are made of highly flexible material so that when they pass over the rollers 12, 13, 14 they travel along the outer circumference thereof. Is bent against the wire 21
As shown in the drawing, the back plate 23 is appropriately deformed into a wavy shape in accordance with the force of the bite trying to bite into the wire receiving groove 20,
It is possible to smoothly pass over the rollers 12, 13 and 14 while conforming to the outer shape including the wire receiving groove 20.

Next, the wire is made into three rollers 12, 1 by the above-mentioned structure.
When the entire roller group 27 composed of 3 and 14 is wound, the drive roller 12 is rotationally driven in the arrow A direction.

Then, the pair of head rollers 13 and 14 around which the wire 21 is wound are also rotated in the direction of arrow A by the frictional force of the wire 21, and the three rollers 12 and 1 of the wire 21 are rotated.
The portion wound in a spiral shape on the whole 3 and 14 rotates in the direction of arrow B. By this rotation operation, the tip end portion 21a of the wire fixed to the guide support 22 is moved to the rollers 12, 13,
14 is wound around the wire receiving groove 20 in sequence and is moved in a screw motion, and the wire 21 following the wire receiving groove 20 after the guide support 22 on each of the rollers 12, 13 and 14 is moved. Is wound so that it can be replaced.

Therefore, the wire 21 can be automatically and sequentially wound around the roller group 27 by screwing the guide support 22 from the starting end portion to the terminating end portion of the roller group 27. is there. In addition, in each drawing of the above-mentioned embodiment, in order to facilitate understanding, the wire receiving groove 2
0, the wire 21, and the guide support 22 are exaggerated from the actual description.

〔The invention's effect〕

As described above, according to the wire winding method of the wire saw of the present invention, for each wire receiving groove in the entire roller group, the wire guide portion of the guide support is partially wound in a spiral shape,
By rotating the roller, the guide support is rotated in a screw-moving manner, and accordingly, the wire can be automatically wound around the roller group in a predetermined manner, and the work can be performed easily and quickly. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a wire winding method for a wire saw according to the present invention, FIG. 2 is an enlarged cross-sectional view of an essential portion in which a guide support is wound around a roller, and FIGS. FIG. 6 is a plan view of an essential part illustrating a state in which a wire is wound around each roller group, and FIG. 6 is an overall perspective view of a conventional wire saw device. 1 ... Wire saw device main body, 12 ... Drive roller,
13, 14 ... Head roller, 20 ... Wire receiving groove,
21 ... Wire, 22 ... Guide support, 26 ... Wire guide, 27 ... Roller group

Claims (1)

[Claims] 1. A wire receiving groove (2) having a plurality of rollers (12, 13, 14) of the same structure each having an independent annular wire receiving groove (20) arranged in parallel at regular intervals.
0) is a method of automatically winding a wire (21) spirally around a roller group (27) that is three-dimensionally arranged in parallel with each other at regular intervals.
7) The wire starting end is spirally wound around the wire receiving groove (20) at one end, and the guide support (22) is attached to the wound wire, and the wire mutual spacing of the spiral of the wound wire. And the guide support (2
On the inner side of 2), that is, on the side facing the roller group (27), a ridge-shaped wire guide portion (26) is formed along the wire passing through the guide support (22), and then the roller group (27). The guide support (22) faces the other end of each roller (1).
2, 13 and 14), the rollers are rotated so as to move forward in a screw motion around the guide support (22), and the guide support (22) thus obtained is rotated by a constant pitch. 22) A wire winding method for a wire saw, characterized in that the wire guided by the wire held in 22) is successively wound around the wire receiving groove (20) in the same spiral state.