TWM569338U - Glass cutter wheel - Google Patents

Abstract

The subject of the present invention is to provide a glass cutting wheel. When the substrate is cut from the inner surface, the incision is soaked from the bottom of the cut to the inner surface of the substrate, and does not collapse on the split surface (inside or collapse) Collapsed). The solution of the present invention is to adopt a configuration in which a disc 2 is provided with a through hole having a fulcrum at the center, and a cutting portion 3 is a slanting manner of the circumferential edge portions on both sides of the disc. The cutting edge portion 5 is formed in a zigzag manner at the circumferential edge portion by the concave portion 4, and the concave portion 4 is provided at an equal interval from the circumferential edge portion of the disk to the both side cutting portions. And the cutting groove portion 6 is connected to both side surfaces of the deep portion of each of the concave portions, and the projection portion is provided with a projection 7 at an angle in the circumferential direction.

Description

Glass cutting wheel

The present invention relates to a cutting wheel which is rotated in a state of being crimped to a surface of a glass substrate, whereby a scribe line (cut line) is drawn on the surface of the substrate.

The cutting wheel train used for the above purpose is such that the circumferential edge portions of both sides are obliquely cut with respect to each other with respect to the disk such as a superhard alloy or sintered diamond, and a V-shaped spot is formed on the entire circumference of the ridge line of the two oblique cutting portions. In the groove, the protrusion (cutting blade) of the base point of the groove (the angle at which the groove is formed) is deep on the substrate plate surface, thereby cutting the underline (for example, see Patent Document 1). [Prior Technical Literature] [Patent Literature]

Patent Document 1: Japanese Laid-Open Patent Publication No. Hei 9-188534.

[Question to be solved by the creative]

Further, according to the cutting wheel of Patent Document 1, a V-shaped groove existing in a dot shape is formed on the entire circumference of the ridge line of the two oblique cuts on both sides of the disk, and the protrusion of the groove is deeply recessed on the substrate plate surface, thereby marking Cut the line.

However, the vibration is transmitted to the cut surface by the V-shaped groove, and although the deep penetration rate is obtained, there is a problem that the cut surface is cracked, the debris is scattered, and cracking occurs due to an increase in pressure.

In particular, when a large number of V-shaped grooves are formed in the outer diameter of the circumference of the dicing wheel, the vibration is transmitted to the scribe plane due to the V-shaped groove cut at the same time as the rotation of the wheel, although the penetration rate is deep. The wheel, but the more the pressure is increased, the more the problem arises: the rupture of the cut surface, the occurrence of chipping and chipping, the chance of chipping of the split surface when splitting (folding) increases, and the probability of becoming a defective product increases. The chipping is divided into internal collapse and external collapse. The so-called collapse means that the cut surface is not flat and defective.

Therefore, the subject of this case is to solve the above problems by improving the cut-through rate. [Means to solve the problem]

In order to solve the above problems, the present invention adopts a configuration in which a disk is provided with a through hole having a fulcrum at a center, and a cutting portion is provided with a circumferential edge portion on both sides of the disk in an oblique manner to each other; The cutting edge portion is formed in a zigzag shape at the circumferential edge portion by a concave portion provided at an equal interval from the circumferential edge portion of the disk to the both side cutting portions; and the cutting groove portion The two sides of the deep portion of each of the recessed portions are connected, and the corner of the cutting groove portion in the circumferential direction is a punching projection. [Effects of creation]

As described above, according to the glass cutter wheel of the present invention, the cutting edge is processed by cutting (rotating) the disk by cutting the cutting edge portion from the surface of the substrate to the inner surface side, and the disk can be cut by the disk. The cutting portions on both sides are good to discharge the debris generated by the processing and the like.

Then, as the scribe line is processed, a scribe line is formed in the cutting portion by the protrusion of the two ridge lines of the groove portion, so that the scribe line groove can be punched and the cut mark can be impregnated to the inner surface of the substrate. .

Therefore, the folding (segmentation) can be made extremely smooth, in particular, the incision is close to the inner surface of the substrate, so the probability of collapse on the divided surface (the fragmentation is divided into external collapse and internal collapse) with the division. It has the special effect of preventing the production of defective products.

Next, an embodiment of the present invention will be described with reference to Figs. 1 to 5 . A shown in Figs. 1 to 5 is a glass cutting wheel.

The glass cutter wheel A is configured such that the disk 2 is provided with a through hole 1 having a fulcrum at the center, and the cutting portion 3 is formed by slanting the circumferential edge portions of the two sides of the disk 2 toward each other. The cutting edge portion 5 is formed in a point on the circumferential edge portion by the concave portion 4, and the concave portion 4 is equally spaced from the circumferential edge portion of the disk 2 to the entire circumference of the two cutting portions 3 The cutting groove portion 6 is connected to both side surfaces of the deep portion of each of the recessed portions 4, and the corner of the ridge line in the circumferential direction of the cutting groove portion 6 is a punching and providing projection portion 7. The disk 2 is made of, for example, a hard alloy or the like.

As shown in Figs. 2, 3, and 4, the cutting portion 3 is obliquely cut from the circumferential edge portion toward the center direction of both side faces of the disk 2 (the edge portion is thin and thicker toward the center).

As shown in FIGS. 2, 3 and 4, the recessed portion 4 is a semi-circular arc groove between the front and rear cutting edge portions 5 on both sides of the disk 2, and the cutting edge portion is formed by the concave portion 4 of the groove. 5 The debris or the like at the time of the cutting is dropped on both side sides of the disk 2 and smoothly discharged.

As shown in Fig. 4, the cutting groove portion 6 is provided such that the end surface of the cutting groove portion 6 communicates with the concave portions 4, 4 on both sides of the disk 2, and the angle (ridge line) on the cutting edge portion 5 side of the cutting groove portion 6 is formed. The punch 7 is given as a punch.

As a result, as shown in FIG. 7, when the glass cutting wheel A is rotated by the surface of the substrate a, the cutting edge portion 5 is cut into and cut from the inner surface of the substrate a.

At this time, the bottom of the cut groove is punched by the punching projection 7 to the cutting groove of the substrate a. Therefore, the cutting can be made to penetrate the bottom of the cutting groove to the inner surface of the substrate a by the punching.

Therefore, the folding (segmentation) is extremely smooth, and the folding of the divided surface at right angles to the plate surface of the substrate a can be formed. It is also possible to fold the cut surface without any external breakage or internal collapse, and it is possible to remove the problem of being defective due to the occurrence of the above-mentioned external collapse or internal collapse. The so-called collapse means that the cut surface is not flat and there is defect.

A‧‧‧glass cutting wheel

A‧‧‧substrate

1‧‧‧through hole

2‧‧‧ disc

3‧‧‧cutting department

4‧‧‧ recessed

5‧‧‧ cutting edge

6‧‧‧ cutting groove

7 ‧ ‧ 撃 撃 撃 撃

Figure 1 is a side view of the glass cutting wheel of the present invention. Fig. 2 is an enlarged side view of the main part of the same. Figure 3 is an enlarged plan view of the main part of the same as above. Figure 4 is an enlarged front elevational view of the same longitudinal section. Fig. 5 is an enlarged perspective view showing the blade portion. Figure 6 is an enlarged side elevational view of the dicing substrate.

Claims (1)

A glass cutting wheel is provided with: a disc, which is a through hole having a fulcrum in the center; and a cutting portion, which is provided with the circumferential edge portions on both sides of the disc in an oblique manner; the cutting edge portion is The recessed portion is formed in a zigzag manner at the circumferential edge portion, wherein the recessed portion is provided at equal intervals from the circumferential edge portion of the disk to the both side cutting portions, and the cutting groove portion is connected to each of the recessed portions The two sides of the deep portion; and the angle of the cutting groove portion in the circumferential direction is a punching projection.