JPH0487765A - Stone polishing machine - Google Patents

Abstract

PURPOSE:To remarkably improve the working efficiency by continuously polishing a side edge of a stone, mounted onto a table in the side of a rail, during the time a carriage is moved one time on the rail, by a suitable number of grinding wheels, which are arranged on the carriage to decrease grain size smaller successively toward the rear, and forming a stepped part. CONSTITUTION:A side edge of a stone 12 is ground and polished to form a stepped part 13 by a carriage 3, by a suitable number of sets of polishing units 7 in which grinding wheels from coarse to fine grain sizes are successively arranged. In the grinding wheels 5 of the polishing unit 7, a position in a point end of a side of a table 4 is aligned, at each time polishing work is finished, to eliminate a difference of a consumed condition in each grinding wheels 5, and the linear smoothed stepped part 13 of a rising surface is formed also at the time of next polishing.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to stone polishing in which a stepped portion mainly for decoration is formed on the edge of the surface of a stone used for urinary stones etc. by grinding and polishing. It's about machines.

[Conventional technology]

When laying stones on the floor surface of a mid-to-high-rise building, the main purpose is to improve the aesthetic appearance, as shown in Figures 5 and 6. The joint 1 is
There is one in which the groove 15 is formed by two stepped portions 13.1B sandwiching the groove 13.1.

Conventionally, in order to form the step part 13 on the stone material 12, a stone processing worker uses a hand-held grinder in which a grindstone is dispersed and fixed to the outer circumferential surface of a thick disc-shaped drum rotated by a motor. A rough step 13 is created by grinding from above along the side edges of the
The rising surface 16 of the stepped portion 13 and the floor surface 17 are manually finished into smooth surfaces.

Here, the step part 13 is finished by the stone 12.
If the stepped portion 13 remains rough when spread over the floor etc., the stepped portion 13, whose main purpose is to improve the aesthetic appearance, may end up detracting from the aesthetic appearance. It is something.

[Problem to be solved by the invention]

However, in the above-mentioned conventional technology, the finishing of the step part is done manually, so the work efficiency is extremely low, and even if there is a large amount of demand, there is a risk that it will not be able to meet the demand. Due to the difference in the level of proficiency of the technology, the quality of the product could vary.

Therefore, the present invention was made based on the above circumstances, and it is possible to form a stepped portion on the peripheral edge or side edge of a stone used for urinary stones, etc., much more quickly and easily than conventional methods, and moreover, the dimensional accuracy is always stable. It is an object of the present invention to provide a stone polishing machine capable of obtaining stepped portions.

[Means to solve the problem]

A stone polishing machine according to the present invention for achieving the above object includes:
A cart with a drive device is placed on the rail, a table is installed on a part of the side of the rail on which stones are placed with one side close to and parallel to the rail, and a thick disk-shaped grinding wheel is placed on the cart. A suitable number of polishing units consisting of a motor and its rotation motor are lined up along the direction of movement of the trolley, and the rear polishing units use finer grindstones, and each polishing unit is equipped with a lifting device and a horizontal movement toward the table. A stone polishing machine that polishes one side of the stone using the grindstone to form a stepped part when the cart moves on the rail, the machine comprising: a stone polishing machine that is equipped with a stone grinder on the same side of the rail as the table at a predetermined distance from the rail; A reference surface is provided at a distance of 100 cm, and a sensor is installed on the reference surface to detect when the grinding wheel contacts the reference surface by the operation of the lateral movement device, in accordance with the arrangement of the polishing unit, and the cart moves back and forth on the rail. In each case, the lateral movement device of each polishing unit operates at the position where the cart approaches the reference surface, and when each grindstone comes into contact with the reference surface, the corresponding lateral movement device is stopped by the detection signal of each sensor. It is characterized by the fact that

[For production]

The present invention uses an appropriate number of polishing units arranged in order from coarse to fine grinding wheels to grind and polish the side edges of the stone while the cart moves once along the side of the stone. It forms part of the

In addition, each time the grinding wheels of each polishing unit finish processing, the positions of the tips on the table side are aligned to eliminate differences in the state of wear of each grinding wheel, so that a step with a straight and smooth rising surface will be formed during the next processing. It is like that.

〔Example〕

Hereinafter, a stone polishing machine according to the present invention will be specifically explained with reference to the drawings.

The grinding machine of the present invention has a cart 3 placed on two rails 1, a table 4 installed on the side of the middle part of the rails 1, and a thick disk-shaped grindstone 5 and a motor 6 for rotating the grinding wheel 5 mounted on the cart 3. Six sets of polishing units 7 consisting of the A lateral movement device 9 is provided at a predetermined distance from the rail 1 on the same side as the deple 4 of the L.
0]-8 is provided, and a sensor 11 that detects when the grinding wheel 5 comes into contact with the reference surface 1-0 by the operation of the lateral movement device 9 is attached to the reference surface]-8 in accordance with the arrangement of the polishing unit 7.
○ is attached, and the corresponding lateral movement device 9 is stopped by the detection signal of the sensor 11.

The trolley 3 is equipped with a motor with a speed reducer as the drive device 2, and is configured to move along the rails 1-7 at a speed suitable for polishing and return to its original position.

Furthermore, as the elevating device 8 for each polishing unit 7, a geared motor is used only for the first polishing unit 7, and an air cylinder is used for the others, and a geared motor is used for the lateral movement device for each polishing unit 7. I am using it.

With the polishing machine of the present invention having the above structure, the stone material]-2 has a stepped portion 1-3.
In order to process the so-called stepped 1F, which forms the 1st floor, first place the plate-shaped stone 12 in a predetermined state as shown in the imaginary line, that is, one side of the stone 12 is parallel to the rail 1. It is placed on the table 4-L with the interval being a predetermined value. On the other hand, in the trolley 3 in the original position, each polishing unit 7
is moved toward the reference plane]0 side by the lateral movement device 9, and with the grindstone 5 in contact with the reference surface 10, the corresponding lateral movement device 9 is stopped by the sensor]-1.

Next, the grindstone rotation motor 6 of each polishing unit 7 is activated, and then the drive device 17 moves the trolley 3 along the rail]-, and the upper surface side of the side edge of the stone 12 adjacent to the rail 1- is Using the first coarse grinding wheel, the second to sixth grinding wheels 5, which become finer [ Form. This stepped portion 13 is formed during one pass over the side of the cart 3 or the table 4.

Then, the cart 3 is returned to its original position, and each polishing unit 7 is moved toward the reference plane 10 by the lateral movement device 9 in order to align the grindstones 5 that have been consumed due to the formation of the stepped portion 13 again. And a sensor 11 whose outer peripheral surface of the grinding wheel 5 is provided on the reference surface 10
-, the corresponding lateral movement device 9 is stopped by the detection signal emitted from the sensor 11, and each grindstone 5 is moved to the reference surface 1.
It is aligned to the state where it touches 0. On the other hand, a partially processed or completely unprocessed stone 12 is placed on the table 4 so that one of its unprocessed sides is close to and parallel to the rail 1.

Thereafter, by repeating the above-mentioned steps, stepped portions 1-3 are formed on the large number of stones 2.

Note that the number of polishing units 7 can be changed as appropriate, and a puff polishing machine may be attached after the last polishing unit 7 to finish the stepped portion 13 more smoothly. Furthermore, the base body] 8 is not limited to the starting point side of the rail 1, but may be provided on the side of the return point after passing past the table 4.

〔Effect of the invention〕

In the stone polishing machine according to the present invention, while the cart moves once on the rail, the stone polisher is placed on the table on the side of the rail.
The side edges of the N-stoned stones are continuously polished using an appropriate number of grindstones installed on a cart, with the grain size becoming smaller towards the rear to form a step. This greatly improves work efficiency and allows us to handle large orders.

In addition, each time the trolley makes one reciprocation on the rail, the extent to which each grindstone that has worn out due to stone polishing is projected toward the table side is measured using the lateral movement device attached to each grindstone and the reference plane and reference plane provided on the table side. Sensors installed according to the placement of the grindstones align each grindstone so that they are in contact with the reference surface, so by placing the stones on the table in a predetermined condition,
Steps with a constant shape can be formed with high precision at all times. In addition, each grindstone is adjusted due to wear each time the trolley makes one reciprocation.
There is no need to replace the grindstones unless they are extremely worn out or damaged, and there is no need to make the sizes of the grindstones the same, so the grindstones can be used effectively until they become quite small.

[Brief explanation of the drawing]

Fig. 1 is a front view of a stone polishing machine according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a right side view thereof, Fig. 4 is a conceptual diagram of main parts of the stone polishing machine according to the present invention, and Fig. 5 is a main part of the stone polishing machine according to the present invention. FIG. 6 is a plan view showing the state of use of the stone processed by the inventive polishing machine, and is a sectional view taken along line A-A. 1...Rail, 2...Drive device, 3...Dolly, 4
...Tiful, 5...Whetstone, 6...Motor, 7
... Polishing unit, 8... Lifting device, 9... Lateral movement device, 10... Reference surface, 11... Sensor, 12
...Stone material, 13...Step diagram diagram diagram

Claims (1)

[Claims] 1. Place a cart (3) with a drive device (2) on the rail (1), and place a machining stone (12) on the side of the center of the rail (1).
A table (4) is installed, on which one side is placed close to and parallel to the rail (1), and a thick disk-shaped grindstone (5) and its rotating motor (6) are mounted on the cart (3). ) and a suitable number of polishing units (7) are lined up along the traveling direction of the trolley (3), and the rearward polishing units (7) use finer grindstones (5). ) is equipped with a lifting device (8) for vertically moving the grinding wheel (5) and a lateral moving device (9) for moving the grinding wheel (5) in the direction of the table (4). Then, use the above-mentioned whetstone (
5) Polish one side of the stone (12) to create a step (13)
A stone polishing machine is provided with a reference surface (10) that is a predetermined distance away from the rail (1) on the same side of the rail (1) as the table (4), and the reference surface (10) has a lateral movement A sensor (11) that detects when the grindstone (5) comes into contact with the reference surface (10) due to the operation of the device (9) is attached in accordance with the arrangement of the polishing unit (7), and the cart (3) is mounted on the rail (
1) Every time the cart (3) moves back and forth over the reference surface (10)
When the lateral movement device (9) of each polishing unit (7) operates and the grindstone (5) comes into contact with the reference surface (10), the detection signal of each sensor (11) causes the corresponding lateral movement to occur. A stone polishing machine characterized in that the moving device (9) is stopped.