JP2588847B2 - Stone curved surface cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stone material curved surface cutting machine for cutting a stone material into a curved surface having a predetermined sectional shape by an endless diamond wire saw comprising a wire rope having a large number of cut portions containing diamond powder arranged at appropriate intervals. Things.

[0002]

2. Description of the Related Art Conventionally, in order to cut a stone into a curved surface using a diamond wire saw, a computer is required for performing numerical control, which is expensive and requires skill.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and provides a stone curved surface cutting machine capable of easily cutting a curved surface with a diamond wire saw at a low cost and without special skill. It is.

[0004]

According to the present invention, there is provided at least one pair of sheaves having a main body and an elevating member arranged so as to be able to move up and down with respect to the main body. And a cutting device provided with an endless diamond wire saw comprising a wire rope driven in a predetermined direction and having a large number of cutting portions including diamond powder mounted on the sheave and arranged at appropriate intervals, and raising and lowering the lifting member An apparatus, a truck for supporting a stone material capable of moving back and forth in a direction crossing the lower side of the diamond wire saw, and a mold for a copying apparatus having an engagement portion having a curved cross-sectional shape attached to the truck and cut, A curved surface cutting machine, characterized in that it includes an engaging member attached to the elevating member, the engaging member being movable while engaging along an engaging portion of a mold. It is intended. In the present invention, the engaging portion of the mold for the copying apparatus may be a groove, or the engaging member for the copying apparatus may be a roller that can roll along the engaging portion. . The present invention also includes a driving device for driving the carriage to move in at least a predetermined direction, and the driving device is adapted to move the carriage in at least a predetermined direction by the driving device when the carriage moves in at least a predetermined direction. And a bogie for moving the bogie only when a resistance force caused by engagement between the bogie and the engaging member is within a predetermined range. The present invention also provides a driving device that drives the truck through a screw so as to move the truck forward and backward, and when the truck moves in at least a predetermined direction by the driving device, the truck is driven only when the torque acting on the screw is within a predetermined range. It is intended to provide a stone material curved surface cutting machine characterized by including a torque limiter which is moved.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. In an embodiment of the present invention shown in FIGS. 1 and 2, reference numeral 10 denotes a portal-shaped main body fixed to the floor.
It has upright portions 12 and 13 on both sides and an upper surface portion 15. 1
Reference numeral 6 denotes a hydraulic cylinder arranged along the upright portion 12 of the main body 10, and a wire rope 19 is connected to a piston rod 17. A cutting device 20 has a lifting member 25 connected to the wire rope 19 via sheaves 21 and 22. The elevating member 25 is configured such that a pair of cylinders 27 fixed to the elevating member are respectively guided by rods 26 extending vertically on both sides of the main body 10 so as to be raised and lowered by the hydraulic cylinder 16. Reference numerals 29 and 30 denote a pair of sheaves rotatably mounted on the elevating member 25, on which a diamond wire saw 31 comprising an endless wire rope having a large number of cut portions containing diamond powder is mounted. The sheave 29 is driven by a motor 32 via a belt 33.

Reference numeral 35 denotes a truck, which can run on a pair of rails 36 extending in a direction penetrating the lower portion of the main body 10. Numeral 37 designates a mold comprising a mold which constitutes a copying apparatus attached to the cart, and comprises a groove having a curved cross-sectional shape for cutting a stone material 90 by attaching an attachment plate 39 to a fixing plate 38 fixed to the cart 35. An engaging portion 40 is formed. Reference numeral 41 denotes an engaging member formed of a rotatable roller attached to the elevating member 25, and a distal end portion is inserted into the engaging portion 40 to be engaged. Reference numeral 43 denotes a screw formed of a square screw, which is screwed to a female screw member 44 provided on the carriage 35. This female screw member is detachable by means not shown. Reference numeral 45 denotes a forward / reverse motor, which is a torque limiter 47 for preventing rotation from being transmitted if the resistance of the chain 46 and the bogie 35 exceeds a predetermined torque when the resistance becomes large.
, The screw 43 is driven. 90
Indicates a stone material arranged on the carriage 35 via the wood 91.

When the stone 90 is cut by the diamond wire saw 31 using the mold 37 as shown in FIG. 3, for example, the female screw member 44 is removed from the carriage 35 to start cutting. When the hydraulic cylinder 16 is automatically operated by the load of the cutting device 20, the engaging member 41 descends while rolling along the engaging portion 40 as the cutting progresses, and the bogie 35 presses the pressing force of the engaging member 41. Accordingly, the diamond wire saw 31 advances and retreats in a direction opposite to the inclination direction of the engagement portion 40, and cuts a curved surface having the same cross-sectional shape as the engagement portion 40. Next, when the stone material 90 is cut using the mold 37 having the engaging portion 40 as shown in FIG. 4, the electric motor is mounted so that the female screw member 44 is attached to the carriage 35 and the carriage 35 is driven in the direction indicated by the arrow 80. Cutting is started while driving 45.
In this case, the engaging member 41 becomes
The vehicle 35 descends while rolling along the right side surface at the portion indicated by 40a, but the carriage 35 slightly moves in the direction indicated by the arrow 80. Next, in the horizontal portion 40b of the engaging portion 40, the engaging member 41 does not give resistance to the movement of the mold 37, so that the bogie 35 moves in the direction of arrow 80 as the cutting by the diamond wire saw 31 progresses. . Further, in a vertical portion indicated by 40c of the engaging portion 40, the engaging member 41 is vertically lowered while rolling along the right side surface thereof, and the cutting is finished. In such a case, only the right mounting plate 39 may be mounted on the fixed plate 38 without mounting the left mounting plate 39 in the figure, and the engaging portion 40 may not be a groove.

In the present invention, the lifting member 25 may be moved up and down using another power drive such as a hydraulic motor instead of the hydraulic cylinder 16. The lifting member 2
5 may be pulled down by a weight via a wire rope so that it can be lowered by a little gravity and can be raised and lowered by a little power. Further, in order to drive the diamond wire saw 31 or drive the screw 43, power other than an electric motor such as a hydraulic motor may be used. In the present invention,
For example, as a device for performing only cutting as shown in FIG. 3, the electric motor 45 for driving the carriage 35, the screw 43, and the like may not be provided. In the case of cutting as shown in FIG. 4, the bogie 35 can be cut while being pulled by a weight via a wire rope or the like without providing the electric motor 45, the screw 43, or the like. Further, the engaging member 4 is
For example, it may be configured such that the position 1 is attached so as to be adjustable in the vertical direction. Further, the engagement member 41 may be formed of a cylindrical roller rotatable around a fixed shaft, or may be a rod-shaped member protruding without rotating.

[0009]

As described above, according to the present invention, a curved surface can be cut only by making a mold having an engaging portion having a desired cross-sectional shape. And has the effect that skill is not required.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention with a part cut away.

FIG. 2 is a front view thereof.

FIG. 3 is a side view showing an example of the use state.

FIG. 4 is a side view showing another example of a use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main body 16 Hydraulic cylinder 19 Wire rope 20 Cutting device 25 Elevating member 29 Sheave 30 Sheave 31 Diamond wire saw 32 Electric motor 35 Bogie 36 Rail 37 Type 40 Engagement part 41 Engagement member 43 Screw 44 Female screw member 45 Electric motor 47 Torque limiter 90 Stone material

Claims (5)

(57) [Claims] 1. A main body, an elevating member disposed so as to be able to move up and down with respect to the main body, at least one pair of sheaves mounted on the elevating member and driven by a power source, and mounted on the sheave. A cutting device having an endless diamond wire saw composed of a wire rope driven in a predetermined direction having a large number of cutting portions including diamond powder arranged at appropriate intervals, a device for raising and lowering the elevating member, A carriage for supporting a stone material capable of moving back and forth in a direction crossing downward, a mold for a copying apparatus having an engaging portion attached to the carriage and having a curved cross-sectional shape to be cut, and attached to the elevating member; And an engaging member which is movable while engaging along an engaging portion of the mold. 2. The stone curved surface cutting machine according to claim 1, wherein the engaging portion of the mold for the copying apparatus is a groove. 3. A stone curved surface cutting machine according to claim 1, wherein said engaging member for said copying apparatus comprises a roller which can roll along an engaging portion. Stone curved surface cutting machine. 4. A stone curved surface cutting machine according to claim 1, further comprising a driving device for driving said bogie to move at least in a predetermined direction, said driving device causing said bogie to move at least to a predetermined position. When moving in the direction, the driving device moves the bogie only when the resistance force exerted on the bogie by the engagement between the engaging portion and the engaging member is within a predetermined range. 5. The stone material curved surface cutting machine according to claim 1, wherein the bogie is driven by a screw so as to move the bogie forward and backward, and the bogie is at least a predetermined one. And a torque limiter configured to move the bogie only when the torque acting on the screw is within a predetermined range when moving in the direction.