JPS599856Y2 - stone cutting machine - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a stone cutting machine for cutting stone.

Generally, in order to cut stone quickly, it is necessary to make the cutting depth relatively shallow (usually 6 mm to 10 mm) and the cutting speed fast (usually 25 m/min to 26 m/min). When cutting by reciprocating the cutter, the cutter must be lowered frequently in small increments for each reciprocating movement of the stone. Conventionally, the lowering operation of the cutter was done manually by turning the lowering handle, which was extremely difficult. It was complicated.

The present invention aims to eliminate these conventional drawbacks and provide a stone cutting machine that can be operated with one touch.

An embodiment of the present invention will be described below based on a road surface.

In FIGS. 1 and 2, 1 is a cutting head;
2 is a rotation mechanism for supporting the cutting head and independently rotating the cutting head 1 as desired; 3 is an arm for supporting the rotation mechanism and the cutting head;
Reference numeral 4 indicates a support leg erected on a base plate that holds the arm so as to be slidable in the horizontal direction, and reference numeral 5 indicates a cart for loading stones and transporting them directly below the cutting head.

The cutting head 1 is shown in detail in FIGS. 3 and 4.

3 is a cross-sectional view taken along the line III--III in FIG. 1, and FIG. 4 is a cross-sectional view taken along the line ■■-■■■ in FIG.

That is, the cutting head 1 has a sliding plate 7 having a dovetail-shaped protrusion 6, and a cutting drive source 8 for rotationally moving the cutting cutter and an elevating drive source 9 for raising and lowering the cutting head.

The cutting cantering source 8 is fixed on the surface of the slide plate on the opposite side to the protruding portion, and is connected to a pulley 11 fixed to the rotating shaft 10 of the drive source via a belt 12 and a pulley 1. The power is transmitted to a rotating shaft 14 installed at the lower end of the slide plate.

A cutting cutter 15 is fixed to this rotating shaft 14.

The protrusion 6 of the slide plate has a notch 1 along its entire length.
8 has been applied.

The elevating drive cord source 9 is fixed to the top of the slide plate so that the rotary yoke 19 of the drive source is aligned with the notch.

A screw 22 rotatably supported by bearings 20 and 21 is disposed within this notch, and the upper end of the screw 22 is connected to the rotating shaft 19 by a connector p.

This screw thread is engaged with a bracket 23 (described later) fixed to the center of the first disc 26 and having a female thread.

Further, a handle 24 is provided on the front surface of the slide plate for convenient movement of the cutting head in the horizontal direction.

The rotation mechanism 2 includes a first disk 26 having a dovetail groove 25 that engages with the protrusion 6 and supports the cutting head so as to be able to move up and down, and a second disk 27 that supports the first disk so as to be able to rotate. Become.

A through hole 28 is bored in the center of the dovetail groove side of the disk 26.

This through hole 28 has a rotating shaft 2 supported by the second disk 27.
9 has been inserted.

Also, the above-mentioned bracket 23 is placed so as to cover this through hole 28.
is fixed.

Further, a bag-shaped groove 30 is formed around the disk 26.

A bolt 31 is inserted into this groove 30.

The bolt passes through the second disk 27, and a nut 32 is screwed onto the tip thereof.

These bolts 31 and nuts 32 support the first disk so that the first disk does not separate from the second disk, and by tightening the nut 32, serve as a brake to prevent the cutting head from rotating involuntarily. .

In addition, in order to determine the descending distance of the cutting head as the screw screw 22 rotates, a scale S1 is provided on the outer wall of the dovetail groove 25.
is provided, and a needle N1 pointing to the scale S1 is provided on the slide plate side.
is installed.

Further, in order to determine the rotation angle of the cutting head, an angle scale S2 is provided on the circumferential surface of the second disc, and a needle N2 pointing to the scale is attached to the first disc side.

The tip of the arm 3 is screwed onto the second disc 27.

The arm is supported by a support leg 4 by a roller R attached to the support leg 4 so as to be able to slide in the horizontal direction.

The leg length of the support leg can be arbitrarily adjusted by an electric motor M.

The cart 5 is equipped with an operating handle A for moving the cart in a direction perpendicular to the axial direction of the arm 3, and an operating handle B for rotating a turntable on the upper part of the cart to change the direction of the stones.

Operation switches for operating the cutting drive source 8 and the lifting drive source 9 are housed in a switch box 35 attached to the handle 24.

In the switch box, 36 is an operation switch for starting the cutting drive source 8, and 37 is an operation switch for stopping the drive source 8.

Further, 38 is an operation switch for starting the elevating drive source 9 and lowering the cutting head.

The operating time of the elevating drive source for lowering the cutting head can be arbitrarily set using a timer 40 attached to the support leg 4.

That is, the timer 40 performs a so-called interval operation in which the electric circuit of the elevating drive source is turned on in response to the input signal of the operation switch 38, and the circuit is turned off at preset time intervals.

Further, in the box 35, numeral 39 is an operation switch for reversely operating the lifting drive source to raise the cutting head.

In the supporting legs, 41 is an operation switch for activating the electric motor M to lengthen the legs, and 42 is an operation switch for operating the electric motor M in reverse to shorten the legs.

Next, how to use the stone cutting machine of the present invention will be explained.

First, the stone is placed on the table of the cart, and is set correctly in a predetermined position by operating the handles A and B of the cart.

Next, the nut 32 of the rotation mechanism is loosened and the cutting head is rotated appropriately to adjust the cutting angle.

At this time, the cutting angle scale S2 provided on the circumferential surface of the second disk
The rotation angle of the cutting head is determined by the position of the needle N2 pointing to the point.

After setting the cutting angle correctly, tighten the nut 32 to prevent the cutting head from rotating inadvertently.

Next, the electric motor M is activated to set the arm 3 at an appropriate height.

Next, the scale of the timer 40 is adjusted to set the cutting depth of the cutting force vine.

For stones with high hardness, the timer setting time is shortened and the cutting depth is reduced in small increments.For stones with low hardness, the timer setting time is relatively long and the cutting depth is deep. Adjustments such as rapid cutting are made as appropriate.

At this time, the cutting depth is determined by the moving distance of the needle N1 pointing to the scale S1 provided on the outer wall of the dovetail groove 25.

After making the above adjustments, the user turns on the operation switch 36 to rotate the cutting power vine, grips the handle 24, and slides the arm back and forth to cut the stone.

If the operation switch 38 is turned on every time the arm shifts to l stroke, the lifting drive source 4 is activated for the time set by the timer.
The screwdriver 22 rotates.

At this time, since the bracket 23 which is screwed onto the screw head is fixed to the rotating mechanism side, the cutting head 1 is lowered by a certain distance along the dovetail groove 25.

The stone is cut by repeating the above operations.

In the device of the present invention constructed as described above, the elevating drive source can be operated at predetermined intervals, and the cutting head is automatically lowered by a certain distance each time the switch is operated. Therefore, unlike conventional manual operation, there is no need to turn the operating handle to lower the cutting power vines one by one.
It is extremely convenient to be able to perform one-touch operations by operating a switch at any time while viewing this in front of the cutting head.

Further, the cutting head can be independently rotated to a desired angle on a plane perpendicular to the axial direction of the arm, and the cutting head faces in the rotated direction and sequentially descends while maintaining the rotated angle. Stones can be efficiently cut at any angle for cutting.

[Brief explanation of drawings]

Figure 1 is a front view of the present invention, Figure 2 is a side view of the present invention, Figure 3 is a sectional view taken along line III-III in Figure 1, and Figure 4 is taken along line I■-IV in Figure 2. FIG. 1... Cutting head, 2... Rotating mechanism,
3... Arm, 8... Cutting drive source, 9
・・・・・・Elevating drive source.

Claims (1)

[Scope of utility model registration request] An arm 3 is provided on a support leg 4 erected on a base so that it can move up and down in the vertical direction and slide in the horizontal direction, and a second disk 27 is fixed to the vertical surface at the tip of the arm shaft. The first disk 26 is provided so as to be rotatable and fixed at any position via the disk 27, and the first disk 26 is provided with a bracket 23 which is screwed into the screw 22.
is fixed thereto, and a slide plate 7 is provided on the side opposite to the arm of the first disc 26 so as to be slidable in a direction perpendicular to the arm 3.
A cutting force cutter 15 and a cutting drive source 8 for rotationally driving the cutting cutter 15 are arranged on the front surface of the slide plate 7, and a cutting drive source 8 for rotationally driving the cutting cutter 15 is provided at the top of the slide plate 7 for raising and lowering the slide plate. A lifting drive source 9 is provided, and a screw 22 connected to the lifting drive source 9 is connected to the slide plate 7.
The screw 22 is mounted rotatably on the bracket 23, while the slide plate 7
A switch box 35 equipped with a handle 24 for holding when manually moving the cutting head 1 in the horizontal direction and buttons for operating the lifting drive source 9 and the cutting drive source 8 is provided on the front surface of the switch box 35. The support leg 4 is provided with an electric motor M, its operation switch, and a timer 40 in order to allow the arm 3 to move up and down with respect to the support leg 4.
0 performs an interval operation in which the electrical circuit of the lifting drive source 9 is turned on by the input signal of the operating switch of the lifting drive source 9 of the switch box, and the circuit is turned off at preset time intervals. A stone cutting machine characterized in that the stone cutting machine is configured to automatically descend by a certain distance.