JP2863220B2 - Cutter holding part of panel cutting device and its adjustment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) A cutter holding portion of a panel cutting device according to the present invention and a method for adjusting the same are provided by cutting a panel made of large glass or the like to obtain a liquid crystal panel having a predetermined size. Regarding the improvement of the cutter holding part used by incorporating it into the panel cutting device used when manufacturing slide glass for specimens, regardless of manufacturing errors, the panel was cut without yielding unreasonable force at the time of the cutting operation. It is something that can be done well.

(Prior Art) When manufacturing a liquid crystal panel used for a display unit of various electronic devices or a slide glass used for preparing a microscope specimen, a large-sized panel is cut to obtain a liquid crystal panel having a predetermined size.
Or try to get a slide glass.

The work of cutting a large panel in this way to produce a small plate having a predetermined size is performed by a cutter that moves along the upper surface of a panel placed on a flat table.
It is done automatically.

That is, as shown in FIG. 6, the head 4 supporting the cutter 3 on the lower surface is moved continuously above and below the table 2 on which the panel 1 is mounted on the upper surface, as shown in FIG. Using a cutting device provided to allow intermittent movement by a fixed length in the front and back directions in the drawing, the head 4 is moved in the left and right direction in FIG. 6 while pressing the cutter 3 against the upper surface of the panel 1. In FIG. 1, a cut is formed as shown by a chain line a in FIG. If one horizontal cut in FIG. 7 indicated by a chain line a is formed, the head 4 is slightly moved in the front and back directions in FIG. 6 by a certain length, and then the head 4 is moved again in the left and right direction in FIG. By repeating the moving operation, a large number of parallel cuts are formed in the panel 1 as shown by chain lines a and a in FIG.

After the horizontal cuts indicated by chain lines a and a in FIG. 7 are formed, the table 2 is rotated 90 degrees about the vertical axis, and the head 4 is moved again in the left-right direction in FIG. A vertical cut shown by broken lines b, b in FIG. 7 is formed in the panel 1.

By this operation, the large panel 1 is divided into small rectangular plates surrounded by chain lines a and a and broken lines b and b.

By the way, in order to be able to perform the above-described cutting work efficiently, a cutting device that can perform the cutting work of the panel even when the cutter 3 moves in any direction is provided by a real cutting machine.
It is disclosed in JP-A-62-148532, and is actually used.

The cutter holding portion in this conventional cleaving device is the eighth to
It is configured as shown in FIG.

In FIG. 8, reference numeral 4 denotes a head fixed to a slider 6 which is movable along a guide rail 5 disposed horizontally. A bearing member 7 is provided on the head 4 in a vertical position with respect to the head 4. The bearing member 7 is mounted so as to be adjustable, and a vertical shaft 8 hangs from the lower surface of the bearing member 7. A base end of a cutter holder 9 is pivotally supported on the vertical shaft 8.

An abacus-shaped cutter 3 is rotatably supported on a horizontal axis on the lower surface of the tip of the cutter holder 9.

A circular hole 10 is formed in the upper surface of the cutter holder 9 at a position deviated from the vertical shaft 8. Inside the circular hole 10, a lower end of a hanging rod 11 is inserted as shown in FIG. , Is inserted loosely.

The hanging rod 11 is hung by a motor 13 from the lower surface of the tip of a rotating piece 14 that is rotatable by 180 degrees at a time. A motor 13 in which the base end of the hanging rod 11 is fixed via a rotating piece 14
The drive shaft 12 has the vertical shaft 8 concentric, and the energization of the motor 13 allows the hanging rod 11 to be rotatable by 180 degrees.

When a large panel is to be cut by the panel cutting device incorporating the conventional cutter holding portion configured as described above, the panel was placed on the upper surface of the table and supported by the head 4 above the panel. The head 4 is reciprocated in a linear direction while pressing the cutter 3 against the upper surface of the panel, and parallel cuts are formed in the panel at equal intervals.

When the head 4 reciprocates, the cutter 3 comes into contact with the upper surface of the panel regardless of the direction in which the head 4 moves, and cuts the panel, but the direction of the cutter 3 correctly matches the moving direction of the head 4. Thus, each time the moving direction of the head 4 changes, the positions of the cutter 3 and the vertical shaft 8 are exchanged. That is,
Each time the traveling direction of the head 4 changes, the motor 13 is moved so that the vertical shaft 8 rotatably supporting the cutter holder 9 is always located ahead of the cutter 3 in the traveling direction of the head 4 (the right side in FIGS. 9 to 10). , The cutter holder 9 is rotated by 180 degrees. The rotation angle of the cutter holder 9 is regulated by a combination of a plate 16 fixed to the cutter holder 9 and two photosensors 15 arranged around the cutter holder 9 with a phase shift of 180 degrees.

By energizing the motor 13, the cutter holder 9 is almost 18
The cutter shaft 9 is rotated by 0 degrees, and the vertical shaft 8 rotatably supporting the cutter holder 9 is positioned forward of the cutter 3 in the traveling direction. However, even in this state, the lower end of the hanging rod 11 rotated by 180 degrees by the motor 13 and the cutter holder 9
Is loosely engaged with the circular hole 10 formed in the upper surface of the cutter rod 9, the cutter holder 9 is slightly centered on the vertical shaft 8 within a range where the lower end of the hanging rod 11 can move inside the circular hole 10. It becomes freely rotatable.

For this reason, even when the moving direction of the head 4 and the direction of the cutting line of the cutter 3 slightly deviate based on the mounting error or the like of the cutter 3, the cutter holder 9 to which the cutter 3 is attached holds the vertical shaft 8. The cutter 3 rotates slightly as a center so that the traveling direction of the head 4 and the direction of the cutting line of the cutter 3 coincide with each other, and acts so that an excessive force is not applied to the panel with which the cutter 3 contacts.

(Problems to be Solved by the Invention) However, in the case of the conventional cutter holding portion of the panel cutting device configured and operated as described above, there are still problems to be solved as described below.

That is, the center of the cutter 3 pivotally supported by the cutter holder 9 by the horizontal axis 17 and the rotation center of the vertical axis 8 need only coincide with each other as shown in FIG. 11, but as shown in FIG. In addition, when the center of the cutter 3 and the rotation center of the vertical shaft 8 are shifted by δ,
Based on the deviation δ, the rotation direction of the cutter 3 and the head 4
And the moving direction of the cutter 3 does not match, so that the cutting by the cutter 3 cannot be performed cleanly.

Of course, if the processing accuracy is improved, the above-mentioned inconveniences are eliminated, but this is not preferable because the processing cost of the cutter holder 9 increases.

The cutter holding portion of the panel cutting apparatus and the method of adjusting the same according to the present invention eliminates the above-mentioned disadvantages.

(Means for Solving the Problems) Among the cutter holding portion of the panel cutting device of the present invention and the adjusting method thereof, the invention of the cutter holding portion described in claim 1 is:
A moving piece that can be moved in the horizontal direction by a horizontal moving mechanism,
A cutter holder rotatably supporting the center of the circular cutter by means of a horizontal axis provided at the lower end, an upper half provided with a first circular hole opened on the lower surface of the moving piece, and a lower half provided with the cutter holder. A vertical shaft rotatably inserted into a second circular hole opened on the upper surface, and a vertical shaft is provided between a lower half of the vertical shaft and the cutter holder, and the lower half is attached to the cutter holder with tightening. The center of the upper half and the center of the lower half of the vertical shaft are eccentric to each other.

According to a second aspect of the present invention, the center of the upper half and the center of the cutter are adjusted by adjusting the cutter holding portion of the panel cutting device configured as described above. Is an adjustment method for positioning the movable piece on the same plane parallel to the moving direction by the horizontal moving mechanism, wherein the moving piece is moved in the horizontal direction while the set screw is tightened, so that the second After drawing one cutting line, the cutter holder is rotated 180 degrees about the vertical axis, and then the moving piece is moved in the opposite direction to the above case, so that a second In the state where the cutting line is drawn and the set screw is loosened, the first half line is opened on the lower surface of the moving piece so that the second cutting line and the first cutting line coincide with each other. After turning inside the circular hole, tighten the set screw .

(Operation) In the cutter holding portion and the adjusting method of the panel cutting device according to the present invention configured as described above, the center of the second circular hole opened on the upper surface of the cutter holder and the cutter holder are rotatably mounted. Even if the center of the held cutter is misaligned due to a manufacturing error, if this misalignment is less than the eccentricity of the upper half and lower half of the vertical axis, this is absorbed and the cutter holder is rotated. The center and the center of the cutter can be matched.

For this reason, at the time of the cutting operation, the rotation direction of the cutter and the feed direction of the cutter holder can be strictly matched irrespective of the manufacturing error of the cutter holder, and the panel can be cut neatly by the cutter. .

(Example) Next, the present invention will be described in more detail while describing the illustrated example.

1 to 5 show an embodiment of the present invention. FIG. 1 is a schematic cross-sectional plan view showing a state in which the center of rotation of the cutter holder and the center of the cutter remain deviated, and FIG. FIG. 3 is a schematic cross-sectional plan view showing a state in which the rotation center of the cutter holder and the center of the cutter are positioned on the same plane parallel to the feed direction of the cutter holder. FIG. FIG. 5 is a vertical sectional side view showing the actual structure of the cutter holding portion.

Reference numeral 18 denotes a movable piece that can be moved in a horizontal direction (horizontal direction in FIG. 5, front and back in FIG. 8) by a horizontal moving mechanism.
Reference numeral 19 denotes a cutter holder provided below the moving piece 18 so as to be hung. The center of the circular cutter 3 is rotatably supported by a horizontal shaft 17 at the lower end of the cutter holder 19. ing.

At the lower end of the moving piece 18, the same circular hole 20 is formed so as to open to the lower surface of the moving piece 18. Inside the first circular hole 20, the upper half of the vertical shaft 21 is formed. 21a is the bearing 22, 2
It is rotatably supported via 2.

On the other hand, a second circular hole 23 is formed at the base end (the left end in FIGS. 1 to 5) of the cutter holder 19 so as to open on the upper surface of the cutter holder 19, and the second circular hole 23 is formed. Hole 23
The lower half part 21b of the vertical shaft 21 is rotatably inserted inside.

On the side of the cutter holder 19, this cutter holder 19
A screw hole 24 is formed extending from the outer peripheral surface to the inner peripheral surface of the second circular hole 23, and the cutter hole is formed in the screw hole 24.
A set screw 25 is screwed from the outside of 19. The tip of the set screw 25 is the lower half of the vertical shaft 21 due to its tightening.
The vertical shaft 21 hits the outer peripheral surface of the cutter holder 21b and the cutter holder 1
Prevents rotation relative to 9.

Furthermore, in the case of the cutter holding portion of the present invention, the vertical axis 21 for hanging the cutter holder 19 rotatably below the moving piece 18 is located at the center of the upper half 21a and the center of the lower half 21b. But,
They are formed eccentric to each other.

In FIG. 5 showing a specific structure, 13 is a motor for changing the direction of the cutter holder 19 by 180 degrees, 14 is a rotating piece fixed to a drive shaft 12 of the motor 13, and 11 is a rotary shaft. It is a hanging rod whose upper end is connected to the piece 14. The lower end of the hanging rod 11 is engaged with a concave groove 26 formed on the tip end surface (the right end in FIG. 5) of the cutter holder 19 in the vertical direction. 19, vertical axis
The upper part 21 is rotatable 180 degrees around the upper half 21a.

By adjusting the cutter holding portion of the panel cutting device of the present invention configured as described above, the upper half 21a of the vertical shaft 21 is adjusted.
When the center of the cutter 3 and the center of the cutter 3 are positioned on the same plane (the plane illustrated in FIG. 5) parallel to the moving direction of the horizontal moving mechanism, first, the set screw 25 is tightened to set the vertical axis. With the relative rotation between the cutter 21 and the cutter holder 19 blocked, move the moving piece 18 horizontally (from left to right in FIG. 5).
The panel 1 (6th
Draw a first cutting line on the upper surface of the figure).

Thereafter, by energizing the motor 13, the cutter holder 19 is rotated 180 degrees about the vertical shaft 21 and then the moving piece 18 is moved in the opposite direction to the above case (from right to left in FIG. 5). 2) to draw a second cutting line on the upper surface of the panel 1.

In this case, the center of the upper half portion 21a of the vertical shaft 21 and the center of the cutter 3, which is the rotation center of the cutter holder 19,
1 and 2, when the first cutting line and the second cutting line do not match, the upper surface of the panel 1
Two split lines parallel to each other are drawn.

Therefore, once the set screw 25 is loosened, the vertical axis is moved in a direction such that the second cutting line and the first cutting line coincide with each other.
A first circular hole 2 having an upper half 21a opened on the lower surface of the moving piece 18
After rotating inside 0, tighten the set screw 25,
The vertical shaft 21 does not rotate with respect to the cutter holder 19.

In this state, the operation of drawing the first and second cutting lines is performed again, and it is confirmed whether or not the two cutting lines match. If they do not match, the same operation is repeated until they match. When the first and second cutting lines are coincident, the center of the upper half 21a and the center of the cutter 3 are coincident with each other. Prepare for use.

The cutter holder of the panel cutting apparatus of the present invention and the method of adjusting the cutter holder are configured and operated as described above.
Even if the center of the second circular hole 23 opened on the upper surface of the cutter 3 and the center of the cutter 3 rotatably held by the cutter holder 19 are misaligned due to a manufacturing error, the magnitude of this misalignment is If the eccentricity of the upper half 21a and the lower half 21b is less than the eccentricity, this is absorbed and the center of rotation of the cutter holder 19 and the center of the cutter 3 can be matched.

For this reason, in the cutting operation, the rotation direction of the cutter 3 and the feed direction of the cutter holder 19 can be strictly matched irrespective of the manufacturing error of the cutter holder 19, and the panel cutting by the cutter 3 is performed neatly. I can do things.

(Effect of the Invention) Since the cutter holding portion and the adjusting method of the panel cutting device of the present invention are configured and operated as described above, regardless of the manufacturing error of the cutter holder, the moving direction of the head and the cutting of the cutter during the cutting operation. By ensuring that the direction of the line coincides with the direction of the line, a high-yield cutting operation can be performed without applying excessive force to the panel.

[Brief description of the drawings]

1 to 5 show an embodiment of the present invention. FIG. 1 is a schematic cross-sectional plan view showing a state in which the center of rotation of the cutter holder and the center of the cutter remain deviated, and FIG. FIG. 3 is a schematic cross-sectional plan view showing a state in which the rotation center of the cutter holder and the center of the cutter are positioned on the same plane parallel to the feed direction of the cutter holder. FIG. FIG. 5 is a vertical side view showing the actual structure of the cutter holding portion, FIG. 6 is a schematic side view showing the entire configuration of the panel cutting device, FIG. 7 is a plan view showing cutting lines formed on the panel,
8 to 10 show a conventional cutter holding portion, FIG. 8 is a diagram viewed from the front side in the head traveling direction, FIG. 9 is a sectional view taken along line AA of FIG. 8, and FIG. 11 is a schematic cross-sectional plan view showing a state in which the center of rotation of the rigid shaft coincides with the center of the cutter, and FIG. 12 shows a state in which the center of the cutter does not coincide. . 1: Panel, 2: Table, 3: Cutter, 4: Head, 5: Guide rail, 6: Slider, 7: Bearing member, 8: Vertical shaft, 9: Cutter holder, 10: Circular hole, 11: Hanging rod, 12 : Drive shaft, 13: Motor, 1
4: rotating piece, 15: photo sensor, 16: plate piece, 17: horizontal axis, 18: moving piece, 19: cutter holder, 20: first circular hole, 21: rigid axis, 21
a: Upper half, 21b: Lower half, 22: Bearing, 23: Second circular hole, 24:
Screw hole, 25: set screw, 26: concave groove.

Claims (2)

(57) [Claims] 1. A moving piece movable in a horizontal direction by a horizontal moving mechanism, a cutter holder rotatably supporting a central portion of a circular cutter by a horizontal axis provided at a lower end portion, and a moving piece having an upper half portion. A vertical shaft rotatably inserted into a first circular hole opened on the lower surface of the cutter holder and a second circular hole opened on the upper surface of the cutter holder, and a lower half of the vertical shaft and the cutter holder. And a set screw that prevents the lower half from rotating with respect to the cutter holder with tightening, and the center of the upper half and the center of the lower half of the vertical shaft are aligned. The cutter holder of the panel cutting device, which is eccentric to each other. 2. A moving piece movable in a horizontal direction by a horizontal moving mechanism, a cutter holder rotatably supporting a center portion of a circular cutter by a horizontal axis provided at a lower end portion, and a moving piece having an upper half portion. A vertical shaft rotatably inserted into a first circular hole opened on the lower surface of the cutter holder and a second circular hole opened on the upper surface of the cutter holder, and a lower half of the vertical shaft and the cutter holder. And a set screw that prevents the lower half from rotating with respect to the cutter holder with tightening, and the center of the upper half and the center of the lower half of the vertical shaft are aligned. By adjusting the cutter holding portions of the panel cutting device that are eccentric to each other, the center of the upper half and the center of the cutter are positioned on the same plane parallel to the moving direction by the horizontal moving mechanism. Adjusting the cutter holding part of the cleaving device Then, by moving the moving piece in the horizontal direction with the set screw tightened, drawing a first cutting line on the upper surface of the panel, and then rotating the cutter holder 180 degrees about the vertical axis. After that, by moving the moving piece in the opposite direction to the above case,
Draw a second cutting line on the upper surface of the panel, and with the set screw loosened, place the lower half on the upper surface of the cutter holder so that the second cutting line and the first cutting line match. A method for adjusting a cutter holding portion of a panel cutting device, wherein the cutter screw is tightened after being rotated inside a second circular hole opened in the panel cutting device.