JPH0513460Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a diamond wire saw.

BACKGROUND ART Conventionally, a cutting device is provided which includes a stainless steel endless wire rope 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 drive this cutting device to cut stones and the like. In such a diamond wire saw, metal tubes 96 are placed on the outside of the wire rope 95 at appropriate intervals as shown in FIG.
A helical spring 98 is wound around the wire rope 95 in order to maintain the position of the cutting members 97 between each cutting member 97 and between the metal cylinder 96. The one that was turned is used. However, since the cutting member 97 moves along the wire rope 95 to some extent during use, the wire rope is easily worn out and cut. However, the cutting member 9
7 to the wire rope 95 by brazing from both ends of the cutting member, the wire rope becomes hot and deteriorates in quality and weakens, making it extremely easy to cut, making it impractical.

Problems to be Solved by the Invention This invention provides a diamond wire saw in which the cutting members can be brazed together without the wire rope being deteriorated or weakened.

Means for Solving the Problem This invention is a cutting method having a plurality of cylindrical cutting members made of sintered alloy containing diamond powder arranged at appropriate intervals, and an endless wire rope passing through each of the cutting members. The diamond wire saw is provided with a device and drives the cutting device to cut stones, etc., wherein each of the cutting members has a hole extending from the circumferential surface to the inner surface, and the wire rope is brazed from the hole portion to the diamond wire saw. To provide a diamond wire saw characterized in that the diamond wire saw is fixed.

Embodiment An embodiment of this invention will be described below with reference to the drawings.

In one embodiment of the invention shown in FIGS. 1 to 5, reference numeral 10 denotes a cutting device, which has a stainless steel wire rope 11, each of which consists of, for example, seven twisted thin stainless steel wires. A suitable number of strands 12 such as strands 12 are further twisted together to form an endless structure as will be described later. 13 is wire rope 11
It is a cylindrical cutting member with holes 15 drilled through it, and a large number of them are provided at appropriate intervals, and each hole 16 is first drilled to reach the inner surface from the circumferential surface. By pouring molten silver solder into this hole, the wire rope 11
They are soldered together. When molten silver solder at a temperature of 700 to 800°C is poured into the hole 16 for brazing in this way, the portion of the wire rope 11 close to the hole 16 will be reinforced by the cutting member 13 even if it becomes weak due to the high temperature. The strength of the cutting member 1 can be maintained by
Even if the silver solder reaches near both ends of the wire rope 11, the strength of the wire rope 11 will not decrease due to the low temperature, for example, 600°C. Reference numeral 17 indicates this brazed portion. Brazing may be performed by placing a rod-shaped silver solder in the hole 16 and heating from the outside, or by using a solder other than silver solder. The wire rope 11 is made endless by arranging connecting portions 18 at different positions of the cutting member 13 for each strand 12 and joining them at the brazing portion.

Reference numeral 20 denotes a frame, which includes two columns 21 whose lower portions are fixed to the floor, and a beam 2 that connects the upper ends of each column.
It is composed of 2. Reference numerals 23 and 25 are elevating members, in which two rollers 27 are brought into contact with one of the guide parts 26 along a pair of guide parts 26 protruding along both the front and rear sides of each support column 21 of the frame 20. It is now possible to go up and down. Reference numeral 28 denotes a female screw member 3 arranged to extend downward from the upper end of each support 21 and provided on each elevating member 23, 25.
It is a threaded rod designed to mesh with 0. A shaft 31 is rotatably supported at both ends by the upper end of the support column 21 and rotates the threaded rod 28 via a pair of bevel gears 33.
6. Therefore, by rotating the electric motor 35 in the forward and reverse directions, the elevating members 23 and 25 on both sides can be moved up and down at the same speed.

Reference numeral 37 denotes a pulley on which one end of the cutting device 10 is mounted, and a shaft 38 supported by the elevating member 23 via a bearing member 40 is fixed. Reference numeral 41 denotes an electric motor attached to the elevating member 23, which drives the shaft 38 via a belt 42. Reference numeral 43 denotes a pulley on which the other end of the cutting device 10 is mounted, and a shaft 45 is fixed to the pulley.
It is supported by a bearing member 46 rotatably connected via 7. 48 is an air cylinder fixed to the upper end of the bearing member 46, and the tip of a piston rod 50 is rotatably connected to the elevating member 25 by a pin 51. This air cylinder is provided to apply an appropriate tensile force to the cutting device 10.

60 is a rail that movably supports the trolley 61;
A stone 90 is supported on the cart 61 via a piece of wood 91. When the electric motor 41 is driven and the lifting members 23 and 25 are lowered while the cutting device 10 is maintained in a tensioned state by the air cylinder 48, the cutting member 13 can cut the stone 90 very well.

Of course, the diamond wire saw of this invention can be used to cut materials other than stone, such as concrete or wood.

Further, in this invention, a steel wire rope may be used instead of the stainless steel wire rope 11.

Effects of the invention This invention has the advantage that since the cutting member 13 is fixed to the wire rope 11 as described above, it can be used in good condition for a long period of time without any decrease in strength at the brazed part. have.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of a cutting device according to an embodiment of the invention, Fig. 2 is a vertical cross-sectional view of the part, Fig. 3 is a plan view showing a wire rope connection, and Fig. 4 The figure is a front view of the whole, FIG. 5 is a plan view of the whole with some parts omitted, and FIG. 6 is a front view showing a part of the conventional cutting device. 10 is a cutting device, 11 is a wire rope, 13 is a cutting member, 15 is a hole, 16 is a hole, and 17 is a brazed portion.

Claims (1)

[Claims for Utility Model Registration] 1. A plurality of cylindrical cutting members made of a sintered alloy containing diamond powder arranged at appropriate intervals;
A diamond wire saw is provided with a cutting device having an endless wire rope passed through each of the cutting members, and drives the cutting device to cut stones, etc., wherein each of the cutting members has a hole extending from the peripheral surface to the inner surface. A diamond wire saw characterized in that the wire rope is brazed and fixed to the wire rope from the hole that is drilled. 2 Utility Model Registration The diamond wire saw according to claim 1, wherein each strand constituting the wire rope is connected at a different brazing position of the cutting member.