JP3068069B2 - Accumulator for wire saw machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to metal, stone, glass,
Reciprocating hard materials such as ceramics (hereinafter referred to as "stone materials")
The present invention relates to an accumulator used for a wire saw machine that cuts an appropriate thickness with a wire to be fed.

[0002]

2. Description of the Related Art Generally, a rotary blade with diamond or the like attached can be used to cut a hard material such as a small block of stone, but a large block of large stone is cut with a rotary blade. It was difficult. In addition, it is difficult to maintain accuracy with a rotary blade when slicing a thin plate from such a stone or the like, and work efficiency is poor when slicing a large number of pieces.

[0003] In response to such demands, a wire saw machine has been used which cuts a file-shaped wire by reciprocating ("reciprocating") . Through
Normal, wire for use as a cutting blade of the wire saw machine, in order to effectively use as long as they have a cutting function, were those for several round trip until exhaustion verge (usually 5-10 roundtrip). The reciprocating movement is performed by arranging a mechanism called an accumulator, which temporarily stores the wire, at a stage before and after the cutting section where the wire moves, and performing retraction / extension from there. As a conventional example of such a configuration,
For example, the accumulator disclosed in Japanese Patent Laid-Open No.
There is a murator. This consists of a number of rollers arranged one above the other
Alternately hook the wire between
The wire is pulled by expanding and contracting by the link mechanism.
It is a mechanism for temporarily storing a predetermined length of
Was.

[0004]

However, such a problem is not solved.
One problem with earsaw machines is broken wires.
Was. That is, in the above mechanism, the traveling method for reciprocating traveling is
Excessive tension on the wire when reversing the direction or widening the roller interval
This was a lot of stress . Such a state
Repeated reciprocation of the wire increases the wear of the wire,
This was because it was the cause of ear breakage. Avoid this
To do this, the number of reciprocations may be reduced, but this is
Unable to use ears effectively, increasing wire usage and cost
Invite a rise.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a simple structure in which an accumulator for temporarily storing a reciprocating traveling wire has a structure in which excessive tension is unlikely to occur and a simple structure. prevents against breakage to enable the efficient use of the wire, and by reducing the number of parts to reduce the incidence of failure of the wire saw machine for the purpose of achieving hence cost of the accumulator
It provides a lator .

[0006]

In order to achieve the above object, a cutting section (2) for cutting a target object by reciprocating a wire W stretched between multi-groove rollers (22); (2) disposed respectively on the front and rear stages of the accumulator (3, 5) put temporarily stored wires W reciprocating travel,
A wire supply unit (1) for intermittently supplying a new wire to the one-side accumulator (3); and a wire winding unit (4) for intermittently winding a waste wire from the other-side accumulator (5). , Consisting of the above wire saw machine
In the accumulator, the invention of the present application
The mortar can be driven to rotate and transmit torque to each other
And a winding mechanism (3, 5) connected to the
The wires (W) are wound around the mechanisms (3, 5) in opposite directions.
To rotate both winding mechanisms (3, 5) in the same direction.
And that winding and unwinding are performed simultaneously.
It is a sign.

[0007] The two winding mechanisms (3, 5) include:
It may be placed on the same axis. Of this winding mechanism (3, 5)
Specific configurations include a cylindrical drum, a disk-shaped pulley,
Either a cylindrical bobbin or a circumferentially arranged guide ring
It is preferable to configure them. Furthermore, the winding mechanism (3,
5) The tension of the wire W is stabilized between the cutting portion (2) and the cutting portion (2).
It is possible to provide hanging weights (G1, G2)
No.

[0008]

Next, an embodiment of the present invention will be described.
This will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram schematically showing the basic configuration of the wire saw machine of the present embodiment. In this wire saw machine, a disc-shaped winding mechanism 3 is provided between a wire supply unit 1 that supplies a new wire W and a cutting unit 2 that cuts a stone S or the like. Further, a winding mechanism 5 having the same configuration as above is provided between the wire winding section 4 for winding the discarded wire W and the cutting section 2. The winding mechanism 3 and the winding mechanism 5 are configured by disc-shaped bases 30 and 5.
The eight guide rings 31,..., 51,... For hooking the wire W along the periphery of the zero side are arranged in a plant shape. The implantation positions of the guide rings 31 and 51 with respect to the disk are along a circumference radius such that the required wire amount is wound around one rotation. Further, the winding mechanism 3 and the winding mechanism 5 are axially connected by a connecting rod 6, and are configured to rotate synchronously in the same direction.

The wire supply unit 1 includes a supply bobbin 10 on which a new wire W is wound by a predetermined amount, and a drive motor M2 for intermittently rotating the supply bobbin 10. Further, the wire winding section 4 includes a winding bobbin 40 for appropriately winding the wire W for disposal and a drive motor M3 for intermittently rotating the winding bobbin.

Further, a plurality of guide pulleys 7, 7, 7 are provided at appropriate positions on the wire running path between the winding mechanism 3 and the cutting section 2 and between the cutting section 2 and the winding mechanism 5. , ...
Are arranged so that the traveling property of the wire W is ensured and the traveling direction is changed.

The drive motor M1 moves the wire W in a reciprocating manner at the cutting section 2 (this is referred to as "reciprocating travel").
You. ) , And is configured to be able to rotate forward and backward as appropriate. And this output shaft 2
4 is connected to the rotary drive roller 20 and is disposed in parallel with the corner of the equilateral triangular prism via the timing belt 21.
Rotating shaft 23 of the multi-groove rollers 22a, 22b, 22c
a, 23b, and 23c.

A single circumferential groove is formed on the side peripheral surface of the multi-groove roller 22 at a predetermined interval, and the wire W is wound at a predetermined interval by engaging with the groove. The number of windings and the winding interval of the wire W in the multi-groove roller 22 are appropriately set according to the desired specification thickness and number of the stones S or the like. In addition,
The configuration itself of the cutting section 2 is the same as that of a conventionally known wire saw machine, and a detailed description thereof will be omitted.

[0013]

Next, the operation of the wire saw machine configured as described above will be described. This wire saw machine, as in the prior art, mounts and fixes a stone or the like S to be cut on a work table T and moves the cutting unit 2 up and down, thereby cutting by pressing against a reciprocating wire W. It is. Here, the traveling direction of the wire W from the wire supply unit 1 side to the wire winding unit 4 side is X direction, and the traveling direction of the wire W from the wire winding unit 4 side to the wire supply unit 1 side is Y direction.
The direction is used in the following description.

The driving torque by the switching of the driving motor M1 between forward and reverse passes through the output shaft 24, the rotating drive roller 20, the timing belt 21, the rotating shafts 23a, 23b and 23c, and the respective multi-groove rollers 22a and 22b of the cutting section 2. , 22c, and the wire W reciprocates . In the present embodiment, the wire W having a length of 10 m
It is set to reciprocate, and in the process, one for each reciprocation
The setting is such that a new wire W is replaced by m each time.

The winding direction of the wire W in the winding mechanism 3 is a clockwise rotation direction (R) passing through the center when viewed from the wire supply unit 1, and the winding direction of the wire W in the winding mechanism 5 is It is in the left rotation direction (L) through the center when viewed from the wire winding section 4.

The procedure for feeding the wire W in such a setting is as follows.
Is wound. In this state, when the wire W is driven in the X direction by the rotational drive of the multi-groove roller 22 of the cutting section 2, the wire W is pulled in accordance with the X direction, and the base 30
Direction, and in addition to this, the drive motor M
2 starts and a new wire W is 1 m from the supply bobbin 10.
Only supplied. Thereby, the wire W of 10 m moves in the X direction. The traveling in the X direction is linked to the rotation of the winding mechanism 3, and the winding mechanism 5 set to coaxial and same-direction rotation also rotates right (arrow R). Since the right rotation (arrow R) of the winding mechanism 5 is a rotation in the direction of winding the wire W, the wire W contributing to the cutting operation of the stone S or the like by traveling the cutting unit 2 is wound by 10 m. Will take. Here, since one turn of the winding mechanism 5 is 9 m, the remaining 1 m is wound around the winding bobbin 40 by the start of the drive motor M <b> 3 for intermittently starting the remaining 1 m. become.

Next, when the multi-groove roller 22 is rotated in the reverse direction by switching the drive motor M1, the wire W travels in the Y direction, and is pulled by the wire W, so that the base 50 makes one full rotation in the L direction, and the length of the wire 50 moves by 9 m. Will move in the Y direction. This traveling in the Y direction rotates the winding mechanism 3 linked to the winding mechanism 5 counterclockwise (arrow L). Since the left rotation (arrow L) of the winding mechanism 3 is a rotation in the direction of winding the wire W, the wire W that has traveled the cutting section 2 again and contributed to the cutting operation of the stone S or the like has a length of 9 m. It will be wound up. Here, since one turn of the winding mechanism 3 is 9 m, the next time the wire W is fed out in the X direction again, the drive motor M <b> 1 which starts intermittently as described above activates 1 m at the extreme end. New wires W are added.

By repeating such an operation, the winding mechanism 3 supplies 1 m of the new wire W from the wire supply unit 1 and supplies 10 m of the new wire W to the cutting unit 2 on the outward path (movement in the X direction). On the return path (movement in the Y direction), the winding mechanism 5 winds 9 m while leaving the winding mechanism 5 for 1 m.

On the other hand, the winding mechanism 5
In the return path, 9 m is unwound leaving 1 m and supplied to the cutting section 2, and the remaining 1 m is wound around the wire winding section 4 in the next forward movement.

The drive motor M2 of the wire supply unit 1 and the drive motor M3 of the wire take-up unit 4 are activated intermittently in synchronization with the winding mechanisms 3 and 5 driven to rotate in the right and left rotation directions. Is set as follows. The timing of the intermittent driving may be performed by attaching a sensor (not shown) to the weights G1 and G2 described later, or may be attached to an appropriate position such as the base 30 of the winding mechanisms 3 and 5. Good.

Further, the winding mechanisms 3 and 5 of the present embodiment do not have their own rotation driving mechanism, but rotate one side by the tension of the wire W due to the rotation of the rotation driving roller 20 of the cutting section 2. , And the winding mechanisms 5 and 3 coaxially connected thereto are driven to rotate.

Next, the weights G1, G disposed between the winding mechanisms 3, 5 and the cutting portion 2, which are installed as necessary,
2 will be described. As described above, the wire saw machine cuts the wire W by reciprocating the stone S or the like, so that, for example, when the wire W attempts to return in the Y direction at the cutting section 2, the wire W There is a possibility that the wire W on one side has a small tension and becomes loose. This slack is applied as an instantaneous pulling force (impact force) when the wire W next travels in the opposite X direction, so that a heavy load is imposed on the wire W. Therefore, weights G1 and G2 are provided for the purpose of applying a constant force to the wire W to eliminate slack. In addition, this weight G
1, G2 moves up and down according to the reciprocation of the wire W. Therefore, a sensor (not shown) is attached to this, and the driving motors M2, M
3 may be driven intermittently.

[0023]

[Possibility of Another Embodiment] In the wire saw machine of the above embodiment shown in FIG.
m, but it is not restricted to this.
The length of reciprocating travel and the length of return can be appropriately set depending on differences in the hardness of the stone S or the like to be cut, the properties of the wire W, and the like. In this embodiment, the timing belt is used to transmit the rotational force from the drive motor M1 to the cutting unit 2, but a chain or a gear may be used instead.

Further, the winding mechanisms 3, 5 are connected by a connecting rod 6 so as to rotate coaxially. However, the winding mechanisms 3, 5 may be combined with various gears without using the connecting rod 6. When the rotation is set to reverse rotation by a gear or the like instead of rotation in the same direction, the winding direction of the wire around the winding mechanism may be the same direction.

Further, if cost permits, a unique rotation drive mechanism may be attached to both winding mechanisms 3 and 5, and in addition, the number of windings is not limited to one round, and a plurality of windings may be performed. It may be the number of times.

The winding mechanisms 3 and 5 are not limited to the disk shape shown in the figure, but can be wound around the outer periphery or in the vicinity thereof in accordance with the rotation of the rotating body in view of the object of the present invention. Any structure may be used, such as a cylindrical drum, a disk-shaped pulley, a cylindrical bobbin, or a circumferentially arranged guide ring.

[0027]

Since the present invention is configured as described above, the occurrence of failures is reduced, the maintenance is facilitated, and the occurrence of a broken wire accident is reduced by using a simple configuration. It has the effect of significantly reducing it, and its industrial effect is great.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating a basic configuration of a wire saw machine according to an embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wire supply part 10 Supply bobbin 2 Cutting part 20 Rotation drive roller 21 Timing belt 22 Multi-groove roller 23 Rotary shaft (of multi-groove roller) 24 Output shaft (of motor M1) 3 Winding mechanism 30 Base 31 Guide ring 4 Wire take-up part 40 Take-up bobbin 5 Winding mechanism 50 Base 51 Guide ring 6 Connecting rod 7 Guide pulley W Wire S Stone, etc. T Work table M1, M2, M3 Drive motor G1, G2, Weight Arrow X Wire supply Move from the part 1 side to the wire take-up part 4 arrow Y Move from the wire take-up part 4 side to the wire supply part 1 side

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-314436 (JP, A) JP-A-10-296609 (JP, A) JP-A-10-272621 (JP, A) JP-A-1- 216760 (JP, A) JP-A 3-107167 (JP, U) JP-A 1-132349 (JP, U) JP-A 6-39352 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B28D 1/08 B28D 5/04 B24B 27/06

Claims (4)

(57) [Claims] A cutting section (2) for cutting an object by reciprocating a wire W stretched between multi-groove rollers (22);
It is arranged at each stage before and after the cutting section (2), and reciprocates.
Accumulator (3 put temporarily stored wires W to row,
5), a wire supply unit (1) for intermittently supplying a new wire to the one-side accumulator (3), and a wire winding unit for intermittently winding a waste wire from the other-side accumulator (5). (4) a wire saw machine comprising
In the above accumulator, the accumulators can be driven to rotate and mutually
Composed of rotated force capable of transmitting cooperative winding mechanism (3, 5), together opposite directions wire W to the respective winding mechanism (3,5)
And rotate both winding mechanisms (3, 5) in the same direction.
From Rukoto, accumulator wire saw machine, characterized in that to perform the solving winding and winding simultaneously. 2. The two winding mechanisms (3, 5) are arranged coaxially.
The wire saw mass according to claim 1, wherein the wire saw mass is disposed.
Accumulator. 3. A winding mechanism (3, 5) comprising: a cylindrical drum;
Disc-shaped pulley, cylindrical bobbin, or circumferential guide
Claims comprising:
Accumulation of the wire saw machine according to 1 or 2.
Ta. 4. The winding mechanism (3, 5) and the cutting part (2)
In the meantime, the suspension weight (G
1, G2) is provided.
Is an accumulator of the wire saw machine described in 3.