JP2675346B2 - Joint cutting machine and joint cutting method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint cutting machine and a joint cutting method for automatically performing joint cutting work on a tile panel after jointing.

(Prior Art) Conventionally, in the production of a tile panel used for a unit bath rule or the like of a dry method, after fixing a substrate and tiles to a panel frame in parallel and at equal intervals, after implanting joints between the tiles, Before the joint is dried, joint cutting work is performed in order to make the boundary between the tile and the joint clear and to make the surface of the joint uniform by eliminating the unevenness of the joint.
The joint cutting work is performed by pressing the joint along the joint from above the joint with a joint cutting rod.

(Problems to be solved by the invention) However, the conventional joint cutting work is carried out manually,
Even a skilled worker needs about 10 to finish one tile panel.
There is a problem that it takes more time than a minute, and not only it takes time but also labor.

(Means for Solving the Problem) In order to solve the problem, the present invention provides a moving body that runs along the joint direction of a tile panel, and disposes a pair of joint cutting mechanisms on the moving body. A first joint cutting mechanism corresponds to the movement of the moving body in one direction, and a second joint cutting mechanism corresponds to the movement in the other direction. And these joint cutting mechanism is composed of a sensor that detects the end of the tile panel and a joint cutting rod that can be raised and lowered by the signal of this sensor,
This joint cut is configured to form an obtuse angle with respect to the traveling direction so that the joint can be cut.

Furthermore, when performing joint cutting of a tile panel with such a joint cutting machine, a straight joint cutting process from one end to the other in the predetermined width direction of the tile panel is performed from one direction to the end without performing the entire width. I left it and interrupted it, and decided to perform joint cutting again from the opposite direction. In addition, after finishing the joint cutting of a predetermined width, the tile panel is moved by a predetermined interval in the direction orthogonal to the direction and the same operation is repeated to continuously perform joint cutting in one direction on the entire surface of the tile panel, and joint cutting in one direction on the entire surface. After finishing, it was decided to repeat the joint in the direction orthogonal to this, and to perform grid-like joint cutting continuously.

(Operation) If the moving body runs while holding the joint with the tip of the lowered joint cutting rod, the joint cutting work is automatically performed. When the sensor senses the end of the tile panel while driving, the joint cutting rod rises and separates from the tile panel surface. When the moving body travels in the opposite direction, the joint cutting rod on the opposite side descends to perform joint cutting. At this time, the joint cutting bar always forms an obtuse angle on the traveling direction side to press down the joint, so that the press-down is sure and
The surface finish can be made beautiful.

Furthermore, when performing joint cutting linearly in the width direction of the tile panel, joint cutting is performed again from the opposite direction while leaving the terminal part, and when joint cutting is performed all the way to the end at once, such as joint chipping that occurs at the end The defect disappears.

(Example) A joint cutting machine and a joint cutting method of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a front view showing an embodiment of a joint cutting machine, FIG. 2 is a plan view of the joint cutting machine, and FIG. 3 is a side view taken along the line AA of FIG.

The main jointing machine 1 includes a first moving body 3 provided at an upper end of a frame and a second moving body 4 attached to the first moving body 3.
And the moving bodies 3 and 4 are movable in the same horizontal plane, and the moving directions thereof are orthogonal to each other. That is, as shown in FIG. 2, the first moving body 3 includes two horizontal members 5,5 that are bridged over the frame 2 and these horizontal members 5,5.
Has a drive shaft 6 running parallel to the center, and an output shaft of a Y-axis control motor 7 is connected to the drive shaft 6, and the Y-axis control motor 7 has two horizontal members 5,5. It is attached to a mounting plate 8 provided in a part of the space. Also this horizontal member
Linear guide portions 5a, 5a are formed on the frame 5 and 5 and are engaged with the upper surface of the frame 2 so as to be movable in the Y-axis direction (vertical direction in FIG. 2).

As shown in FIG. 3, the second moving body 4 is attached to the lateral members 5, 5 of the first moving body 3 and has two rotating shafts 10 and 10 and an X-axis control motor mounted inside the outer plate 9. 11, the movement of the horizontal member 5 along the longitudinal direction, that is, the X-axis direction (second
It can be moved in the left-right direction in the figure). A swivel body 12 is provided on the lower surface of the second moving body 4, and the swivel body 12 is configured to hold a joint cutting mechanism 13 at the lower side thereof and to be able to rotate 90 degrees by an air rotary actuator 14. .

As shown in FIG. 1, two joint cutting mechanisms 13 are arranged on a straight line along the traveling direction of the second moving body 4, and one joint cutting mechanism 13 serves as a joint cutting rod 15 and an elevating mechanism. It is composed of a cylinder unit 16 and a photo sensor 17. That is, the upper end of the joint cutting rod 15 is supported by the pivot support 18 so as to rotate along the traveling direction, while one end of the cylinder unit 16 is attached to the lower end side, and the joint cutting is performed by the expansion and contraction of the cylinder unit 16. The rod 15 rotates about the pivot body 18, and the tip end thereof moves up and down. When the joint cutting bar 15 descends and comes into contact with the tile panel, the joint cutting bar 15 is configured to have an oblique angle with respect to the traveling direction. ing. As shown in the enlarged view of FIG. 4, the joint cutting rod 15 is made of an iron material, and its tip portion is formed into a hemispherical shape while using a cemented carbide tip in order to avoid discoloration of the joint portion. The curvature size of the hemispherical shape is determined in consideration of the curvature r and the joint width m of the tile outer peripheral side surface shown in FIG. On the other hand, the photo sensor 17 is provided on the front side in the traveling direction of each joint cutting rod 15 in a pair with the joint cutting rod, and detects the end of the tile panel to control the moving bodies 3 and 4 and the joint cutting rod 15. Signals for controlling the motors 7 and 11 and the cylinder unit 16 respectively.
Sent to. In the case of the present embodiment, six rows of joint cutting mechanisms 13 are provided facing the advancing direction side, and each of these forms a pair of 12 joints.
A book joint bar 15 is provided. Further, the intervals of the joint cutting bars 15 in the six rows are set in accordance with the intervals of the tile pitch.

The joint cutting method for performing joint cutting with the joint cutting machine configured as described above is as follows.

First, when the tile panel on the self-propelled pallet 19 is transported and positioned, the first moving body 3 moves from the origin O to P shown in the traveling route diagram of FIG. 5 and stops, and the joint is cut from the point P. Start. Here, the joint cutting rod 15 on the forward side descends and the second moving body 4 travels toward the point Q. When the photo sensor 17 on the forward side detects the passage of the end portion of the tile panel during traveling, the joint cutting bar 15 rises to interrupt the joint cutting. At this time, the position of the joint cutting bar does not reach the tile panel terminal part, and the rest is left. The second moving body 4 stops when the rear photo sensor 17 detects the passage of the end of the tile panel (point Q). Next, the second moving body 4 reversely travels toward the R point on the same route, but at this time, the opposite joint cutting rod descends and travels between QR while performing joint cutting including the remaining portion. At the R point, the second moving body 4 is stopped, and the joint cutting rod is lifted to return to the Q point. In the case of this embodiment, the traveling of this QR is set to 2 seconds. Next, the first moving body 3 advances by a predetermined interval and stops, and the same operation is repeated. The second moving body 4 is running, 6
When one or more rows of the joint cutting mechanism of the rows run off the tile panel side end (between ST), the photo sensor detects,
After traveling to point U, the revolving structure 12 is rotated 90 degrees to change the direction of the joint cutting mechanism. Next, the same operation is repeated in the orthogonal direction to perform grid-like joint cutting on the entire surface. The joint condition after joint cutting is as shown in FIG. 6 (B), and the boundary of tiles is clearer and the surface is uniform compared to (A) showing the condition before joint cutting. I understand.

The tile panel cut in this way is conveyed by the self-propelled pallet 19 to the buffing device 20 on the right side of FIG.
The dirty surface after work is cleanly polished.

In addition, since the tile pitch is formed by a multiple of a predetermined interval, for example, when performing joint cutting of a tile panel having a double tile pitch, the joint cutting bars in six rows should be three in every other row. You can use it.

(Effect of the Invention) Since the present invention is configured as described above, it is possible to automatically perform joint cutting of a tile panel, which was conventionally performed manually, and it is possible to significantly reduce the labor and time required for the operation. It was In addition, the joint cutting process from the end to the end of the tile panel is not performed from only one direction,
There are no defects such as joint defects in the tile panel terminal,
It also has the effect of cutting joints evenly on the surface.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a joint cutting machine of the present invention, and FIG.
The figure is a plan view of the joint cutting machine, FIG. 3 is a side view taken along the line AA of FIG. 2, FIG. 4 is an enlarged view of the joint cutting rod, and FIG. 5 is a travel route diagram of the moving body. FIG. 6 is a vertical sectional view of the tile panel, in which (A) shows a state before joint cutting and (B) shows a state after joint cutting. In the drawings, 1 is a joint cutting machine, 2 is a frame, 3 is a first moving body, 4 is a second moving body, 5 is a horizontal member, 5a is a linear guide portion, 6 is a drive shaft, and 7 is a Y-axis control. Motor, 8 mounting plate, 9 outer plate, 10 rotating shaft, 11 X-axis controlling motor, 12 revolving structure, 13 joint cutting mechanism, 14 air rotary actuator, 15 joint cutting rod, 16 Is a cylinder unit, 17 is a photosensor, 18 is a pivot body, 19 is a self-propelled pallet, 20 is a buffing device, r is a curvature, and m is a joint width.

Claims (4)

(57) [Claims] 1. A joint cutting machine, wherein a moving body provided with a joint cutting rod is run along a joint direction of a tile panel in which the joint is inserted, and the joint is pressed by the joint cutting rod. A first joint cutting mechanism that performs joint cutting when traveling in one direction along the joint direction, and a second joint cutting mechanism that performs joint cutting when traveling in a direction opposite to the direction along the joint direction. The first and second joint cutting mechanisms each have a sensor for detecting the end of the tile panel, and a signal from the sensor raises and lowers the joint cutting rod whose upper portion inclines forward with respect to the traveling direction. A joint cutting machine characterized by having a lifting mechanism. 2. When the moving body having a joint cutting mechanism travels in one direction along the joint direction of the tile panel, the terminal is provided by the first joint cutting rod whose upper portion inclines forward with respect to the traveling direction. When the moving body travels in the direction opposite to the above direction, the remaining joint is cut off by the second joint cutting bar whose upper portion is inclined forward with respect to the traveling direction. The joint cutting method is characterized in that the joint cutting is performed. 3. After the joint cutting of a predetermined joint is completed, the movable body is moved by a predetermined width in a direction orthogonal to the joint so that the tile panel is continuously cut in one direction. The joint cutting method according to claim (2). 4. A grid-like joint cut is continuously performed on the entire tile panel by switching the joint cut direction by 90 degrees after finishing the joint cut in one direction on the whole surface of the tile panel. The joint cutting method according to claim (3).