JPH0411767Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a stone splitting machine for cutting and manufacturing stone blocks used as building stones.

Conventional Technology When manufacturing stone blocks to be used as building stones, conventionally, stone blocks were cut into blocks using a saw machine or the like.

Problems that the invention aims to solve As mentioned above, the work efficiency was low because the stone was cut into blocks using a saw.

The present invention was developed in view of the above circumstances, and its purpose is to provide a stone splitting machine that can easily cut stone and improve its working efficiency.

Means and Effects for Solving the Problems The present invention provides a table body E with an opening in the center in the middle of the body A, an upper blade 17 is provided on the upper part of the body A via a holder 9, and a table body E is provided in the middle part of the body A. A holder 19 is provided so as to be movable up and down, and a stone D placed on the table body E is mounted on the holder 19.
A lower blade 20 is provided that collides with the upper blade 17 from below to cut the stone D, and a lower blade vertical operating mechanism B that moves the lower blade 20 up and down is provided on the fuselage A. This lower blade vertical operating mechanism B is connected to the frame. a crankshaft 25 supported by the motor 32 through a clutch 35; an eccentric shaft 38 fixed to the crankshaft 25; and a crankshaft 38 rotatably supported on the eccentric shaft 38 through an eccentric bush 39. and a connecting rod 40 with a lower holder 19 connected to the tip thereof,
The eccentric bush 39 is connected to an eccentric bush rotation driving means such as a worm wheel structure for rotating the eccentric bush 39, and the lower blade 20 is moved up and down by the operation of the lower blade up and down movement mechanism B. collides with the stone D from below and hits the stone D together with the upper blade 17.
It is designed to cut. The vertical adjustment of the lower blade 20 is performed by rotating and adjusting the eccentric bushing using an eccentric bushing rotation drive means.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. A is the fuselage, and the fuselage A is composed of left and right frames 1 and 2 and a bracket 6 horizontally fixed between the upper parts of the frames 1 and 2.
A table body E consisting of front and rear tables 3 and 4 is provided in the middle of the table 2, and an opening 5 is formed between the tables 3 and 4.

Further, elongated holes 7 and 8 are formed in the frames 1 and 2 along the vertical direction.

Reference numeral 9 denotes a holder, and the left and right ends of the holder 9 are formed into insertion parts 10 and 11, and these insertion parts 1
0 and 11 are inserted into the elongated holes 7 and 8. The body A is provided with a holder holding mechanism 12. The holder holding mechanism 12 is provided in a block 13 fixed to the frames 1 and 2, and an adjustment bolt 15 that is rotated and moved up and down by a handle 14 with a ratchet is threaded onto the block 13.
5 is in contact with the lower surface of the insertion portions 10 and 11 of the holder 9, and the upper surface of the holder 9 is in contact with a plurality of adjustment bolts 16 screwed into the bracket 6.

An upper blade 17 is attached to the lower part of the holder 9.

A guide 18 is provided inside the lower part of the frames 1 and 2.
is fixedly installed, a holder 19 is provided on the guide 18 so as to be movable up and down, and a lower blade 20 is attached to the upper part of the holder 19 so as to be adjustable with a shim. A lower blade vertical movement mechanism B for vertically moving the lower blade 20 is provided at the lower part of the body A.

This lower blade vertical movement mechanism B includes a crankshaft 25 provided on the support parts 21 and 22 of the frames 1 and 2 via bearings 23 and 24, and a shaft provided on the support part 26 of the frame 2 via a bearing 27. 28
A flywheel 30 is provided on the shaft 28 via a bearing 29, and a pulley portion 31 is formed on the flywheel 30, and the pulley portion 31 and the output shaft end of the electric motor 32 are connected to each other. Pulley 3
A belt 33 is hung between 2' and 2'. A gear 34 is fixed to the shaft 28, and the output side of a clutch 35 is fixed to the shaft 30, and the input side of the clutch 35 is connected to the flywheel 30.
36 is a brake.

A gear 37 is fixed to the crankshaft 25,
Gear 37 meshes with gear 34.

The crankshaft 25 is provided with an eccentric shaft portion 38, and a connecting rod 40 is rotatably mounted on the eccentric shaft portion 38 via an eccentric bush 39. The upper end of the connecting rod 40 is connected to the holder 19 via a pin 41.

The eccentric bushing 39 constitutes a worm wheel, and a worm 42 meshes with gear teeth 45 formed on the outer periphery of the eccentric bushing 39 . It is put out to the outside.

Next, the operation will be explained.

A stone D is placed on the tables 3 and 4, and the adjustment bolt 15 is adjusted by operating the handle 14, and the upper blade 17 is lowered to hit the upper surface of the stone D. Further, in this state, the adjustment bolts 16 are brought into contact with the upper surfaces of the upper and lower holders 9.

The electric motor 32 drives the pulley 32', belt 33, flywheel 30, clutch 35, and shaft 2.
8. Rotate the crankshaft 25 via the gears 34 and 37 to move the lower blade 20 in the vertical direction via the holder 19 by the crank movement of the connecting rod 40, and cause the lower blade 20 to collide with the lower surface of the stone D. , cut the stone D with the lower blades 17 and 20. In addition, when cutting the stone D, depending on the dimensions and material of the stone D, the upper and lower blades 17,
It is necessary to adjust the amount of penetration between No. 20 and stone D.

For this purpose, the adjustment bolts 15 and 16 are moved and adjusted.

It is also necessary to adjust the position of the lower blade 20, but this is done by adjusting the number of shims 46 interposed between the lower blade 20 and the holder 19.

Also, rotate the worm 42 to rotate the eccentric bush 3.
By rotating the blade 9 to shift the phase with the eccentric shaft portion 38, the throat talk of the lower blade 20 is changed. FIGS. 6 and 7 show its different working states, with FIG. 6 showing the maximum stroke state and FIG. 7 showing the minimum stroke state.

[Effect of idea]

Since the present invention is as described above, the lower blade 20 is moved up and down by operating the lower blade vertical movement mechanism B, and the lower blade 20 collides with the stone D from below to cut the stone D together with the upper blade 17. This makes it easier to cut the stone D and improves work efficiency. Further, the stroke of the lower blade 20 can be easily changed by rotating the eccentric bush 39 using an eccentric bush rotation drive means. moreover,
Since the vertical movement of the lower blade 20 is mechanically performed by a crank mechanism,
The operating force of the lower blade operating mechanism is directly applied to the stone D via the lower blade 20, allowing the stone D to be cut with high precision, and the cutting speed is low, so the machining cycle is short. Furthermore, compared to a mechanism in which the lower blade vertical movement mechanism B is operated by hydraulic pressure, equipment such as hydraulic pressure generating means is not required, and a stone splitting machine with a simple structure and low cost can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a vertical sectional view thereof, FIG. 3 is an explanatory diagram of the structure of the lower blade vertical movement mechanism, and FIG. 4 is a sectional view taken along the line of FIG. 3. Figure 5 is an enlarged view of the Figure 3 section, Figure 6 is the 5th section.
FIG. 7 is a sectional view taken along the line of FIG. 9, 19 is a holder, 17 is an upper blade, 20
25 is a lower blade, 25 is a crankshaft, 38 is an eccentric shaft portion, 30 is an eccentric bushing, 42 is a worm, 4
5 is the gear teeth, A is the fuselage, and B is the lower blade vertical movement mechanism.

Claims (1)

[Scope of utility model registration request] A table body E with an opening in the center is provided in the middle part of the body A, an upper blade 17 is provided above the opening 5 and directed downward through the holder 9 on the upper part of the body A, and a table body E is provided in the lower part of the body A with a A holder 19 is movably provided, and a lower blade 20 that collides with the stone D placed on the table body E from below through the opening 5 from below and cuts the stone D together with the upper blade 17 is directed upward in the holder 19. A lower blade vertical movement mechanism B for vertically moving the lower blade 20 is provided on the fuselage A, and the lower blade vertical movement mechanism B is supported by a frame and connected to a crankshaft 25 via a clutch 35 to an electric motor 32; It consists of an eccentric shaft part 38 fixed to the crankshaft 25, and a connecting rod 40 rotatably supported by the eccentric shaft part 38 via an eccentric bush 39, and having a lower holder 19 connected to the tip thereof,
A stone splitting machine characterized in that the eccentric bush 39 is connected to an eccentric bush rotation driving means such as a worm wheel structure for rotating the eccentric bush 39.