JPH01159166A - Cutting device of diamond wire saw - Google Patents

Abstract

PURPOSE:To prevent beforehand the abrasion and cutting of a wire rope due to the shift of a cutting member by forming the cutting member by integrally fixing a cutting part onto the outside of a metal cylindrical body which is longer than the cutting part and fixing the wire rope in penetration through the cylindrical body. CONSTITUTION:A cutting member 15 is equipped with a metal cylindrical body 16 made of soft steel, etc., and a cutting part 17 which is formed as integral body in sintering on the outside of the center part of the cylindrical body 16 and consists of the sintered alloy containing diamond powder. The cylindrical body 16 extends long on the both sides from the cutting part 17, and a wire rope 11 is allowed to penetrate into the cylindrical body 16 before the wire rope 11 is formed into an annular form, and said rope 11 is fixed at a soldered part 18. The connection parts 13 of the strands 12 of this rope 11 are arranged at the positions where different cutting members 15 are installed, and the wire rope 1 is made endless. Therefore, the abrasion of the wire rope 11 due to the shift of the cutting member 15 during the cutting of a stone material can be prevented beforehand by fixing the cutting member 15 onto the wire rope 11, and the service life can be prolonged.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cutting device for a diamond wire saw.

(Prior Art) Conventionally, a cutting device is provided which includes an endless wire rope made of stainless steel and a number of cylindrical cutting members made of a sintered alloy containing diamond powder arranged at appropriate intervals so as to pass through the wire rope. A diamond wire saw is used to cut stones and the like by driving this cutting device. The cutting device of such a diamond wire saw consists of a plurality of metal tubes that are fitted onto the outside of the wire rope at appropriate intervals, crushed and fixed, and are movably passed through the wire rope. are arranged and the spacing between them and the metal cylinder is maintained by a helical spring.

(Problems to be Solved by the Invention) In the conventional diamond wire saw cutting device described above, the cutting member moves back and forth along the wire rope to some extent during use, so the wire rope is easily worn out and cut. On the other hand, when attempting to connect the cutting member to the wire rope by brazing both ends of the cutting member with silver solder, the wire rope becomes hot and degenerates, weakening and becoming extremely susceptible to being cut, making it impractical.

The present invention provides a cutting device for a diamond wire saw that allows a cutting member to be connected to a wire rope without causing the wire rope to wear out or to deteriorate or become weak.

Additionally, the inventor claims that out of a large number of cutting members attached to the wire rope, for example, two or three of them may locally wear out significantly and unevenly, and if they wear out, the wire rope will also be cut. discovered a phenomenon.

The present invention also provides a cutting device for a diamond wire saw that can almost completely prevent the cutting member from being locally and unevenly worn out.

(Means for Solving the Problems) The present invention includes an endless wire rope and a number of cutting members having cutting portions made of a sintered alloy containing diamond powder, which are passed through the wire rope and arranged at appropriate intervals. A cutting device for a diamond wire saw that is driven by a diamond wire saw to cut stones, etc., wherein each of the cutting members has a cutting portion fixed to the outside of a metal cylinder that is longer than the cutting portion to which the wire rope is passed through and fixed. The present invention provides a cutting device for a diamond wire saw, characterized in that it is configured as follows.

The present invention also provides a cutting device for such a diamond wire saw, in which the cutting portion fixed to the metal cylinder of the cutting member or another metal cylinder fixed to the wire rope is cut from a hard material having a small diameter. This invention provides a cutting device for a diamond wire saw, characterized in that a large number of guide portions are distributed over a wire rope.

(Example) Examples of the present invention will be described below with reference to the drawings.

In one embodiment of the invention shown in FIGS. 1 and 2, 1
0 indicates a cutting device, which has a wire rope 11 made of stainless steel or steel, and this wire rope has a suitable number of strands 12, for example seven, made of twisted thin stainless steel or steel wires. Furthermore, the strands are twisted together, and each strand is soldered at a different position to form a connecting portion 13, making it endless. 15 is a cutting member, for example, a cylinder body 16 made of metal such as mild steel;
The cylindrical body has cutting portions 17 made of a sintered alloy containing diamond powder formed integrally with it on the outside of the central portion thereof during sintering, and is arranged in multiple stages at appropriate intervals. This cutting part 1
The cylindrical body 16 to which the wire rope 7 is attached extends longer on both sides than the cutting part 17, and before the wire rope 11 is formed into an annular shape, the wire rope is passed through it, and solder is poured between the wire rope and the wire rope. It is fixed by the soldering part 18 formed by the process. Since this solder melts at a lower temperature than, for example, silver solder, the wire rope 11 does not deteriorate in quality, and since the cylindrical body 16 is long, it has sufficient strength. Further, the connecting portions 13 of each strand 12 of the wire rope 11 are arranged at positions where different cutting members 15 are attached, so that the connecting portions 13 are endless.

When cutting stones or the like using the cutting device 10 described above, the cutting member 15 is fixed to the wire rope 11, so the wire rope 11 does not wear out.
Moreover, when the cutting member 15 is fixed to the wire rope 11, the wire rope does not become high temperature and deteriorate in quality.

In the above embodiment, the cylindrical body 16 may be brazed with a suitable material whose melting point is not high without soldering, and the cylindrical body 16 is fixed to the wire rope 11 by caulking the parts on both sides of the cut portion 17. You can do it like this. or,
The cut portion 17 may be formed by sintering into a cylindrical shape separately from the cylindrical body 16, and the cylindrical body 16 may be inserted and fixed therebetween by brazing with, for example, silver solder. Further, the cutting member 15 may have the cutting portion 17 attached near one end of the cylindrical body 16, except for those in which both ends are caulked and fixed.

In another embodiment of the present invention shown in FIG. 3, a slightly longer small diameter portion 19 is formed in the center of the metal cylinder 16 of the cutting member 15, and large diameter portions 20 are formed on both sides. . The cut portion 17 is formed by sintering a sintered alloy containing diamond powder on the outside of the small diameter portion 19 to have an outer diameter that almost matches that of the large diameter portion 20. It may have a smaller diameter than the large diameter portion 20 or may have a larger diameter. Even if the cutting portion 17 has a smaller diameter than the large diameter portion 20, the large diameter portion 20 will quickly wear out and become approximately the same diameter as the cutting portion 17 when used. The cutting member 15 has a large diameter portion 2
It is fixed to the wire rope 11 by caulking the wire, and since it is thick, sufficient strength can be maintained.

The embodiment shown in FIG. 3 is also such that the wire rope 11 is not worn away by the cutting member 15 and does not deteriorate in quality during installation.

In another embodiment of the invention shown in FIG. 4, each cutting member 15 has a metal cylindrical body 16 having a large diameter portion 20 only at the rear end and small diameter portions 19 at the rest. There is. A cut portion 17 made of diamond powder and a sintered alloy is formed outside a portion of the small diameter portion 19 following the large diameter portion 20. Reference numeral 21 denotes a reinforcing guide section formed by sintering powder made of cemented carbide, such as tungsten carbide, at the same time as the cutting section 17 following the cutting section 17, and having an outer diameter slightly smaller than that of the cutting section 17. . 22 is a cut portion 17 made of copper, for example, which surrounds the outside of the reinforcing guide portion 21 and is bonded to the reinforcing guide portion during sintering.
It is an annular portion having the same outer diameter as . By providing this annular portion, the reinforcing guide portion 21 is made smaller in diameter than the cutting portion 17. Reference numeral 23 denotes an annular portion made of an alloy of copper and silver with a tapered outer side, which covers the end faces of the reinforcing guide portion 21 and the annular portion 22 and is joined together as one body when the reinforcing guide portion 21 and the like are sintered. This annular portion 23 includes the cutting portion 17 and the reinforcing guide portion 2.
During sintering of No. 1, a part of it melts to ensure good bonding, but it may not be provided in some cases. Reference numeral 24 denotes a female threaded part cut into the inner surface of the cylinder 13, and the cylinder 16 is soldered to the wire rope 11 to form a soldered part 18, and the hole 24 can be melted at a relatively low temperature. The contact area is increased to increase the contact area. For example, the dimensions of the above structure can be described as follows. The wire rope 11 has a diameter of 5 mm and a length of 15 m, the cylinder 16 has a length of 3 Q mm, the outer diameter of the large diameter part is 1 Q mm, the length is 5 mm, the outer diameter of the small diameter part is 7 mm, the length is 25 mm, and the cutting part 1
7 length 15mm.

The reinforcing guide portion 21 has an outer diameter of 3.5 mm and a length of 5 mm.

The interval between the cylinders 16 is 39 mm.

When cutting stone by driving the cutting device 10, the annular portion 23
．． 22 wears out early, but the reinforcing guide part 21 protects the cutting part 17 without being easily damaged even if it collides with a stone, and the cutting part 17 wears out almost uniformly, so that the reinforcing guide part 21
It can be used until the diameter is almost the same as that of the

FIG. 5 shows a partially modified cutting device 10.

In this cutting device, without attaching the tapered annular part 23 to one end of the cylindrical body 16 of the cutting member 15, the annular part 25, which is made of stainless steel and has the same outer diameter as the other part, is cut into the cutting part 17.
When the reinforcing guide portion 21 is formed by sintering, they are bonded at the same time, and are fixed by caulking at the positions of the large diameter portion 20 and the annular portion 25 without brazing to the wire rope 11. In the present invention, the reinforcing guide portion 21 may be constructed by joining annular members made of cemented carbide by brazing or the like without using cemented carbide powder. In such a case, the annular portion 22 may not be provided.

In the embodiment shown in FIG. 4 or 5, the reinforcing guide portion 2
1 may be formed of a sintered alloy containing diamond powder similar to the cutting part 17 instead of a cemented carbide, and generally the cutting part 1
A hard material approximately equal to or higher than 7 can be used. Further, the reinforcing guide portions 21 may be formed at the rear of the cutting portion 17 instead of at the front thereof, and may be alternately reversed.

In another embodiment of the invention shown in FIG. 6, a plurality of cutting members 15 constructed in substantially the same manner as in the embodiment shown in FIGS. It has a metal cylindrical body 27 made of, for example, mild steel, which is fixed by soldering. Reference numeral 21 denotes a reinforcing guide portion formed by sintering powder made of a hard material such as cemented carbide, similar to the embodiment shown in FIG. The diameter is slightly smaller than the outer peripheral surface of the cutting portion 17 of the cutting member 15. wire rope 11
The connecting portion 13 of the strand 12 may be disposed within the cylindrical body 27 and configured to be endless. For example, the dimensions of the above structure can be described as follows. wire rope 1
1 is a cylindrical body 16 of a cutting member 15 with a diameter of 5 mm and a length of 15 m.
has a length of 25 mm and an outer diameter of 7 mm, and the cutting part 17 has an initial outer diameter of 1
The reinforcing guide member 26 has a length of 16 mm and an outer diameter of 7 mm, and the reinforcing guide part 21 has a length of 5 i.
The outer diameter is 8.5 mm.

In this invention, a reinforcing guide member 26 may be provided for every two cutting members 15.

Further, as the cutting device 10, for example, one having the cutting member 15 shown in the embodiment shown in FIGS. 1 and 2 or the embodiment shown in FIG. 3, or the cutting member 15 shown in FIG. One or more types of reinforcing guide members 26 shown in FIG. 2 may be arranged so as to be distributed throughout.

7 and 8 show a device for driving the cutting device 10. FIG. That is, 30 is a frame, which is composed of two columns 31 whose lower portions are fixed to the floor surface and beams 32 which connect the upper ends of each column. Reference numerals 33 and 35 denote elevating members, each of which touches one of two rollers 37 along guide portions 36 protruding in pairs along both the front and rear sides of each column 31 of the frame 30. It is possible to go up and down. Reference numeral 38 denotes a threaded rod extending downward from the upper end of each support 31 so as to engage with a female threaded member 40 provided on each elevating member 33, 35. A shaft 41 is rotatably supported at both ends by the upper end of the support column 31 and rotates the threaded rod 38 through a pair of bevel gears 43, and is driven by an electric motor 45 through a belt 46. ing. Therefore, electric motor 4
5 in the forward and reverse directions, the elevating members 33 and 35 on both sides
can be raised and lowered at the same speed.

47 is a pulley on which one end of the cutting device 10 is mounted;
A shaft 48 supported by the lifting member 33 via a bearing member 50
It sticks to. Reference numeral 51 denotes an electric motor attached to the elevating member 33, which drives the shaft 48 via a belt 52. Reference numeral 53 denotes a pulley on which the other end of the cutting device 10 is mounted, and a shaft 55 is fixed thereto, and this shaft is supported by a bearing member 56 rotatably connected to the elevating member 35 via a pin 57. . 58 is an air cylinder fixed to the upper end of the bearing member 56, and the tip of the piston rod 60 is connected to the pin 6.
1 is rotatable to the lifting member 35; 70 is a rail that movably supports a cart 71;
It is a stone supported through. When the electric motor 51 is driven and the lifting member 33,35 is lowered while the cutting device 10 is maintained under tension by the air cylinder 58, the cutting device 10 can cut the stone 90 very well.

It goes without saying that the diamond wire saw cutting device 10 of the present invention may be used for cutting materials other than stone, such as concrete IJ or wood.

(Effects of the Invention) As described above, in this invention, each cutting member 15 is connected to the cutting portion 17.
The cutting part 17 is integrally connected to the outside of the longer metal cylinder 16, and the wire rope 11 is fixedly fixed to the metal cylinder by passing through each cylinder. It has the effect that it can be used satisfactorily for a long period of time without being worn out, and the mounting of the cylinder 16 does not deteriorate due to high temperatures.

Further, in the present invention, the reinforcing guide portion 21 is provided on the cutting member 15 or the reinforcing guide member 26 is provided on the wire rope 1.
1, the cutting portion 17 of the cutting member 15 is locally abraded and the wire rope 11
This can prevent the blade from cutting.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of one embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of the part, and FIGS. 3 to 6 are different embodiments of the present invention. FIG. 7 is a front view of the driving device, and FIG. 8 is a partially removed plan view. 10 is a cutting device, 11 is a wire rope, 15 is a cutting member, 16 is a metal tube, 17 is a cutting section, 21 is a reinforcing guide section, 26 is a reinforcing guide member, and 27 is a metal tube. Agent Patent Attorney Akira Katsabe

Claims (1)

[Claims] 1. A driving device comprising an endless wire rope and a number of cutting members having cutting portions made of a sintered alloy containing diamond powder that pass through the wire rope and are arranged at appropriate intervals. A diamond wire saw cutting device for cutting stones, etc., wherein each of the cutting members is configured by fixing a cutting part to the outside of a metal cylinder that is longer than the cutting part to which the wire rope is passed through and fixed. A diamond wire saw cutting device characterized by: 2. The diamond wire saw cutting device according to claim 1, wherein each of the cutting members is fixed to the wire rope by soldering or other brazing of a metal cylinder. Features a diamond wire saw cutting device. 3. A cutting device for a diamond wire saw as set forth in claim 1, wherein each of the cutting members has a cutting portion attached to the outside of the central portion of the metal cylinder, and has a cutting portion attached to both sides of the metal cylinder. A cutting device for a diamond wire saw, characterized in that it is tightly fixed to a wire rope. 4. A cutting device for a diamond wire saw according to claim 1, wherein each of the cutting members has a small diameter portion in the center of a metal cylinder and large diameter portions are formed on both sides,
Cutting by a diamond wire saw, characterized in that the cutting part is formed on the outside of the small diameter part so as to have an outer diameter substantially the same as the large diameter part, and each of the large diameter parts is crimped and fixed to a wire rope. Device. 5. A diamond cutting device that has an endless wire rope and a number of cutting members having cutting parts made of a sintered alloy containing diamond powder that are passed through the wire rope and arranged at appropriate intervals, and are driven to cut stones, etc. In the wire saw cutting device, each of the cutting members has the cutting portion formed on the outside of a metal cylindrical body that is longer than the cutting portion to which the wire rope is passed through and fixed, and the cutting portion is formed on the outside of a metal cylinder of the cutting member. A large number of reinforcing guide parts made of a hard material having a diameter smaller than the cut part fixed to the body or another metal cylindrical body fixed to the wire rope and having hardness equal to or higher than the cut part are distributed on the wire rope. A diamond wire saw cutting device characterized by: 6. The diamond wire saw cutting device according to claim 5, wherein the reinforcing guide portion is made of cemented carbide. 7. The diamond wire saw cutting device according to claim 5, wherein the reinforcing guide portion is formed by sintering a sintered alloy containing diamond powder. Device.