TWI641568B - Double-edged scribing wheel for cutting coated glass - Google Patents

Abstract

A double-edged cutter wheel for cutting a film-coated glass, comprising: a disk surface on both sides and a central hole, the outer circles of the two disk surfaces respectively extending outward as a first slope and a second slope, the first slope and the second slope The circle extends outwardly to a third inclined surface and a fourth inclined surface; the intersection lines of the first and third inclined surfaces and the second and fourth inclined surfaces respectively form a first cutting edge on the two sides of the disk surface, and intersecting lines of the third and fourth inclined surfaces For the circumferential edge, the effective cutting portion of the circumferential edge is the second cutting edge. According to the difference of the second cutting edge, the double-edged cutter wheel can be divided into a second cutting edge with a non-toothed circumferential full cutting edge, a V-groove or U-groove intermittent cutting edge or a grooved toothing. Full-blade cutter wheel. The two cutting angles corresponding to the first cutting edge and the second cutting edge are respectively used for cutting the film layer and the glass layer of the film-coated glass, and are particularly suitable for cutting high-end film glass such as LCD liquid crystal display panel glass.

Description

Double-edged cutter wheel for cutting filmed glass

The invention belongs to the technical field of processing tools, and particularly relates to a double-edged cutter wheel for cutting a film-coated glass, and is particularly suitable for cutting high-end film glass such as LCD liquid crystal display panel glass.

With the advancement of technology and society, modern glass products tend to diversify, and the diversified demand has also led to the growing field of glass cutting technology. One of the emerging fields is the cutting technology for film glass. The cutter wheel is an ultra-precision diamond tool for cutting brittle materials such as glass. Ultra-precision slots are cut into the surface to gradually cause deep vertical fractures to cut different sizes and shapes. For the type, structure and cutting accuracy requirements of the glass, the performance parameters of the required cutter wheel are also different.

Film-coated glass is a special glass that is coated on the surface of ordinary glass or coated with one or more layers of metal, alloy or metal compound film to optimize or highlight certain properties of the glass to meet specific requirements. The difference in the coating layer also differs in the requirements for the cutting process of the corresponding film-coated glass. Since the thickness of the film-coated glass and the thickness of the coating layer to be applied are extremely strict, the cutting process difficulty and precision required for ordinary glass are extremely high, so that the film-coated glass, especially the LCD liquid crystal display glass, touches Cutting of high-end film glass, such as control panels, raises the need for higher cutting.

The structure of the prior art cutter wheel for cutting glass has only a single cutting angle, that is, the cutting angle of the effective cutting portion of the circumferential cutting edge, because the physical properties of the film layer and the glass base layer are often different when cutting the film glass. A series of problems, such as low cutting efficiency and unstable quality, are particularly prominent for high-end film-coated glass. If the cutting angle of the cutter wheel with a single cutting angle is small, it is easy to increase the pressure on the glass base layer and damage the glass; if the cutting angle is large, the pressure on the glass base layer is lowered, but the film layer is likely to be caused. Failure to cut or too low efficiency will affect the reliability of glass cutting.

In view of this, the present invention provides a double-edged cutter wheel for cutting a film-coated glass. The design of the cutting angle is completed, and the cutting of the film layer and the glass layer is completed, and the cutting precision is optimized under the premise of cutting precision. Quality, especially suitable for cutting high-end film glass such as LCD liquid crystal display panel glass.

The technical solution adopted by the present invention is specifically: a double-edged cutter wheel for cutting a film-coated glass, comprising a disk surface and a central hole on both sides, wherein the outer circles of the two disk surfaces respectively extend outward into a first inclined surface and a second inclined surface, The first inclined surface and the second inclined surface are symmetric inclined surfaces; the outer circumferences of the first inclined surface and the second inclined surface extend outwardly into a third inclined surface and a fourth inclined surface, wherein the third inclined surface and the fourth inclined surface are symmetric inclined surfaces; The intersection line of the inclined surface and the third inclined surface, the second inclined surface and the fourth inclined surface respectively form a first cutting edge, the intersection line of the third inclined surface and the fourth inclined surface is a circumferential cutting edge, and the diameter of the circumferential cutting edge is a knife The outer diameter of the wheel, the effective cutting portion of the circumferential cutting edge is a second cutting edge.

The angle between the first slope and the second slope is a first cutting angle θ1, and the angle of the first cutting angle θ1 ranges from 60° to 100°.

The blade surface formed by the third slope and the fourth slope is a second cutting angle θ2, and the angle of the second cutting angle θ2 ranges from 100° to 160°.

A V-groove is evenly distributed on the circumferential edge. The V-groove has a groove depth of 1 to 5 μm and a number of 3 to 600.

U grooves are evenly distributed on the circumferential edge. The U-groove has a groove depth of 1 to 5 μm and a number of 3 to 600.

A groove is evenly distributed on the circumferential edge, and the inner cutting edge of the groove is in the same plane as the circumferential cutting edge, and the inner cutting edge and the circumferential cutting edge are combined into a tooth-toothed full cutting edge structure. The circumferential edge is evenly distributed with 3 to 600 grooves, and the grooves have a groove depth of 1 to 15 μm.

Preferably, the thickness of the disk surface is 0.65 mm, the diameter of the center hole is 0.8 mm; and the outer diameter of the cutter wheel is 2.0 to 4.0 mm.

Wherein the distance between the first cutting edge formed by the intersection of the first inclined surface and the third inclined surface and the first cutting edge formed by the intersection of the second inclined surface and the fourth inclined surface along the axis of the central hole axis is 0.02~0.1mm.

The invention has the beneficial effects that the four inclined faces of the cutter wheel respectively form two first cutting edges on both sides and a second cutting edge corresponding to the circumferential cutting edge, and the cutting angle corresponding to the cutting edge The angle of a cutting edge is used to cut the film layer of the film glass, the angle of the second cutting edge is used to cut the glass layer of the film glass, and the design of the double cutting edge is effective for the structure of the film glass, avoiding the single The blade glass cutter wheel damages the film layer or the glass base layer when cutting the film glass, and is effective The product quality and processing efficiency of the film-cutting process are improved; and the V-groove, U-groove or groove structure distributed on the circumferential edge can effectively prevent slipping and control the crack depth for different types of film-coated glass and cutting requirements. Further improve the cutting quality.

1‧‧‧ face

2‧‧‧ center hole

3‧‧‧ first slope

4‧‧‧Second slope

5‧‧‧ third slope

6‧‧‧4th bevel

7‧‧‧First cutting edge

8‧‧‧Second cutting edge/circumferential cutting edge

9‧‧‧V slot

10‧‧‧U slot

11‧‧‧ Groove

12‧‧‧ inside cutting edge

A‧‧‧ cutting edge structure

Θ1‧‧‧first cutting angle

Θ2‧‧‧second cutting angle

The invention can be more completely and better understood when considered in conjunction with the drawings. The drawings described herein are intended to provide a further understanding of the invention, and are not intended to be construed as limiting.

1 is a perspective view of a double-edged cutter wheel for cutting a film-coated glass according to the present invention; FIG. 2 is a left side view of a double-edged cutter wheel for cutting a film-coated glass according to the present invention; A partial enlarged view of a cutting edge structure A for a double-edged cutter wheel for cutting a film-coated glass is an intermittent cutting edge with a V-groove; FIG. 4 is a double-edged knife for cutting a film-coated glass according to the present invention; The cutting edge structure A of the wheel is a schematic diagram of the cutting edge when the intermittent cutting edge of the V groove is used; FIG. 5 is a cutting edge structure A of the double cutting edge cutting wheel for cutting the film glass according to the present invention; A partial enlarged view of a cutting edge; FIG. 6 is a schematic view of a cutting edge structure A of a double-edged cutter wheel for cutting a glass with a U-shaped interrupted cutting edge; FIG. A partial enlarged view of a cutting edge structure A of a double-edged cutter wheel for cutting a film-coated glass is a grooved full edge; FIG. 8 is a double-edged edge for cutting a film-coated glass according to the present invention; Knife wheel FIG. 9 is a schematic view showing a cutting mechanism of a glass for a double-edged cutter wheel for cutting a film-coated glass according to the present invention; and FIG. The structure of the double-edged cutter wheel with the groove being a hyperboloid groove.

The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

A double-edged cutter wheel for cutting a film-coated glass as shown in FIGS. 1 to 8 is particularly suitable for processing a high-end film glass such as an LCD liquid crystal display panel glass, including a disk surface 1 and a center hole 2 on both sides, and two disk surfaces. The outer circumferences extend outwardly as a first inclined surface 3 and a second inclined surface 4, respectively, wherein the first inclined surface 3 and the second inclined surface 4 are symmetric inclined surfaces, and the outer circumferences of the first inclined surface 3 and the second inclined surface 4 extend outward to the third The inclined surface 5 and the fourth inclined surface 6 are wherein the third inclined surface 5 and the fourth inclined surface 6 are symmetric inclined surfaces.

The intersection line of the first inclined surface 3 and the second inclined surface 4 with the third inclined surface 5 and the fourth inclined surface 6 respectively form two first cutting edges 7 on both sides of the disk surface 1, and the angle between the first inclined surface 3 and the second inclined surface 4 For the first cutting angle θ1, θ1 is 60°~100°; the intersection line of the third inclined surface 5 and the fourth inclined surface 6 is a circumferential cutting edge, and the effective cutting portion of the circumferential cutting edge is the second cutting cutting edge 8. The blade faces formed by the third slope 5 and the fourth slope 6 are the second cutting angle θ2, and θ2 is 100° to 160°.

It should be noted that, in the present invention, the first inclined surface 3 and the second inclined surface 4 are symmetric inclined surfaces, and the third inclined surface 5 and the fourth inclined surface 6 are symmetric inclined surfaces. Required, because during the cutting of the glass by the cutter wheel, the first cutting edge 7 and the second cutting edge 8 are rotated, if the first cutting edge 7 and the second cutting edge 8 on both sides are asymmetric in structure The cutting path of the cutter wheel will deviate.

As a preferred embodiment, the thickness of the disk surface 1 of the cutter wheel is 0.65 mm, and the diameter of the center hole is 0.8 mm; the diameter of the circumferential edge is the outer diameter of the cutter wheel, and the outer diameter of the cutter wheel is 2.0 to 4.0 mm, first a distance between the first cutting edge formed by the intersection of the inclined surface and the third inclined surface and the first cutting edge formed by the intersection of the second inclined surface and the fourth inclined surface along the axis of the central hole is 0.02 mm to 0.1 Mm.

The distance between the two first cutting edges extending along the axis of the central hole and the second cutting angle θ2 determine the depth of the second cutting edge portion of the cutter wheel into the glass, reflecting the second cutting of the double-edged cutter wheel The cutting ability of the cutting edge to the film-coated glass depends on the physical properties of the film-coated glass to be cut, and the corresponding parameters of the relevant parameters of the cutter wheel are adjusted to achieve the desired cutting quality.

As shown in FIG. 9, the action mechanism of the double-edged cutter wheel for cutting the film-coated glass of the present invention is specifically: in the process of glass cutting, when the double-edged cutter wheel is plunged into the film-coated glass, the first cutting edge on both sides The mouth 7 cuts the film layer, and the second cutting edge 8 is responsible for cutting the glass layer, according to the cutting requirements for different parts, through the first cutting edge, the second cutting edge and the first cutting angle, the second cutting The angles are designed separately to ensure the cutting quality and precision of the film-coated glass.

According to the difference of the second cutting edge 8, the double-edged cutter wheel can be divided into two The cutting edge is a non-toothed circumferential full edge, a discontinuous edge with a V-groove or a U-groove, or a grooved, full-edged cutter wheel.

The specific structure A of the cutting edge is a distinguishing feature, and the double-edged cutter wheel according to the present invention will be further described by the following four embodiments.

Example 1

The intersection line of the third inclined surface 5 and the fourth inclined surface 6 is a circumferential cutting edge, and at this time, the outer diameter portion of the cutter wheel is an effective cutting portion, and the circumferential cutting edge completely coincides with the second cutting cutting edge 8, that is, the circumference without the tooth is full. Cutting edge.

Example 2

The intersection line of the third inclined surface 5 and the fourth inclined surface 6 is a circumferential cutting edge, and the V-groove 9 is uniformly distributed on the circumferential cutting edge, and the groove depth of the V-groove 9 is 1 to 5 μm, and the number is 3 to 600 (for example, 200).

The corner of the intersection of the V-groove and the circumferential edge forms a sharp corner. When the cutter wheel is cut, the sharp corner first contacts the surface of the object to be cut, the circumferential edge contacts the glass, and the sharp corner has a small pressure on the surface of the object to be cut, and is directly inserted into the object to be cut, and is firmly grasped and cut. The object makes it difficult for the cutter wheel to slide relative to the object to be cut during the cutting process.

The bottom of the V-groove 9 is a platform that does not function as a cutting edge. At this time, the portion of the outer diameter of the cutter wheel other than the V-groove 9 is an effective cutting portion, and the second cutting edge 8 is a part of the circumferential cutting edge, that is, a discontinuous cutting edge with a V-groove.

Example 3

The intersection line of the third inclined surface 5 and the fourth inclined surface 6 is a circumferential cutting edge, and the U-groove 10 is evenly distributed on the circumferential cutting edge, and the groove depth of the U-groove 10 is 1~5 μm, and the number is 3~600 (for example, 200).

The U-groove forms a sharp corner at the junction with the circumferential edge. When the cutter wheel is cut, the sharp corner first contacts the surface of the object to be cut, the circumferential edge contacts the glass, and the sharp corner has a small pressure on the surface of the object to be cut, and is directly inserted into the object to be cut, and is firmly grasped and cut. The object makes it difficult for the cutter wheel to slide relative to the object to be cut during the cutting process.

The bottom of the U-groove 10 is a platform that does not function as a cutting edge. At this time, the portion of the outer diameter of the cutter wheel other than the U-groove 10 is an effective cutting portion, and the second cutting edge 8 is a part of the circumferential cutting edge, that is, the intermittent cutting edge with the U-groove 10.

Example 4

The intersection line of the third inclined surface 5 and the fourth inclined surface 6 is a circumferential cutting edge, and the groove 11 is uniformly distributed on the circumferential cutting edge, and the inner cutting edge 12 is provided in the groove 11. The inner cutting edge 12 of the groove 11 is in the same plane as the circumferential cutting edge, and the groove 11 has a groove depth of 1 to 15 μm. The shape of the groove 11 may be a hyperboloid type, a clip plane type or a cylindrical structure.

Figure 8 shows a side view of the inner cutting edge and the circumferential cutting edge when the shape of the groove 11 is in the form of a clip plane. Fig. 10 is a view showing the structure of the double-edged cutter wheel when the shape of the groove is a hyperboloid type. As shown in Figure 10, the groove comprises two symmetrical curved surfaces, the intersection of the two symmetrical curved surfaces forming the inner edge 12 of the groove.

The inner cutting edge 12 of the groove 11 is combined with the circumferential cutting edge 8 to form a continuous tooth-toothed full-edge structure, i.e., a grooved full-toothed cutting edge.

In the tooth-toothed full-blade structure, the boundary between the inner cutting edge 12 and the circumferential cutting edge 8 may be a sharp corner or a sharp-pointed arc. When the cutter wheel performs cutting, the sharp corner or the sharp corner of the intersection of the inner cutting edge 12 and the circumferential cutting edge 8 first contacts the object to be cut. Surface, the circumferential edge touches the glass, the sharp corner or the sharp corner arc faces the surface of the object to be cut, and the pressure is small, directly into the object to be cut, and firmly grasps the object to be cut, so that the cutter wheel is in the cutting process. It is not easy to slide relative to the object to be cut. When the object to be cut is cut into the circumferential edge, the inner cutting edge cuts the cut object to perform further cutting.

In the present application, since the inner cutting edge is in linear contact with the object to be cut, the pressure acting on the cutting surface of the cut object when the inner cutting edge contacts the object to be cut is small, and the longitudinal crack in the cut object can be minimized or The probability of transverse cracks.

In the above four embodiments, the circumferential edge of the cutter wheel of Embodiment 1 has no V-groove, U-groove or groove, and is more suitable for cutting the glass film with higher strength, for example, the thickness of the glass layer is 0.2. Mm, high-strength film-coated glass with a thickness of 0.01mm, using a second cutting edge without a V-groove, U-groove or groove-free structure as a full-edge double-edged cutter wheel, first cutting edge The angle of the mouth 7 and the angle of the second cutting edge 8 are 60 and 105, respectively.

The circumferential edge of the cutter wheel of Embodiment 2 is distributed with a V-groove 9, which is more suitable for cutting the thin-film coated glass. For the cutting of a certain ITO conductive film glass with a glass layer thickness of 0.3 mm and a film thickness of 0.01 mm, the second cutting edge adopts a V-groove (intermittent cutting edge) double-edged knife wheel, first The angle of the cutting edge 7 and the angle of the second cutting edge 8 are 60° and 110°, respectively, and the number of V grooves 9 and the groove depth are 200 and 3 μm, respectively.

Compared with the V-groove 9 on the secondary cutting edge of Embodiment 2, the U-groove 10 in Embodiment 3 is generally deeper and has a stronger penetration force to the glass layer, but it is also easy to be powdered when cutting, and the glass cutting line is The damage is large, and the V-slot phase It is lighter, although it is not easy to powder, the damage to the glass cutting line is relatively reduced, but its penetration ability is also relatively low, so whether U groove or V groove structure, and U groove or V groove specific groove depth and The choice of the number is also based on the nature of the film glass in the actual cutting and the cutting accuracy requirements.

The circumferential edge of the cutter wheel of Embodiment 4 is distributed with a groove 11, which is more suitable for cutting a thin film-coated glass having a certain strength. For example, for the cutting of a certain ITO conductive film glass with a thickness of 0.5 mm thick and a film thickness of 0.01 mm, the second cutting edge of the groove structure is a full-edge double-edged cutter wheel, the first cutting The angle of the cutting edge 7 and the angle of the second cutting edge 8 are 60° and 110°, respectively.

It should be noted that, in the case of a cutter wheel having a tooth-toothed full-blade structure, the number of teeth affects the size of the tooth width and the number of teeth is large, and the cutting penetration effect on the object to be cut is better. In the present embodiment, the number of teeth and the depth of the teeth formed by the groove 11 and the circumferential edge are preferably 200 and 5 mm, respectively.

As described above, the embodiments of the present invention have been described in detail, and it is obvious that they are included in the protection of the present invention as long as they do not substantially deviate from the inventive concept and effect of the present invention and are obvious to those skilled in the art. Within the scope.

Claims (5)

A double-edged cutter wheel for cutting a film-coated glass, comprising a disk surface (1) and a central hole (2) on both sides, wherein the outer circles of the two disk surfaces respectively extend outward as a first slope (3) and a second a bevel (4), the first bevel (3) and the second bevel (4) are symmetric bevels; the outer circumferences of the first bevel (3) and the second bevel (4) extend outward to a third inclined surface (5) and a fourth inclined surface (6), wherein the third inclined surface (5) and the fourth inclined surface (6) are symmetric inclined surfaces; the first inclined surface (3) and the third inclined surface ( 5), the intersection line of the second inclined surface (4) and the fourth inclined surface (6) respectively form a first cutting edge (7) for cutting the belt corresponding to the first cutting edge (7) a film layer of the film glass, the intersection line of the third slope surface (5) and the fourth slope surface (6) is a circumferential edge (8), and the diameter of the circumferential edge (8) is an outer diameter of the cutter wheel, The effective cutting portion of the circumferential cutting edge (8) is a second cutting edge for cutting the glass of the film-coated glass corresponding to the second cutting edge; wherein the circumferential edge (8) is evenly distributed a groove (11), the groove (11) comprising two symmetrical curved surfaces, the two An intersection line of the symmetrical curved surface forms an inner cutting edge (12) of the groove (11), the inner cutting edge (12) of the groove (11) being in the same plane as the circumferential cutting edge (8) The inner cutting edge (12) and the circumferential cutting edge (8) are combined into a tooth-toothed full-edge structure, and the intersection line of the first inclined surface (3) and the third inclined surface (5) is formed. The first cutting edge (7) and the second slope (4) and the fourth The distance between the first cutting edges (7) formed by the intersection lines of the inclined faces (6) in the direction in which the axis of the center hole (2) extends is 0.02 to 0.1 mm. The double-edged cutter wheel for cutting a film-coated glass according to claim 1, wherein an angle between the first inclined surface (3) and the second inclined surface (4) is a first cutting angle θ1, the first The angle of the cutting angle θ1 ranges from 60 to 100°. The double-edged cutter wheel for cutting a film-coated glass according to claim 1, wherein the third inclined surface (5) and the fourth inclined surface (6) form a blade surface angle of a second cutting angle θ2, The angle of the two-cut angle θ2 ranges from 100 to 160°. The double-edged cutter wheel for cutting a film-coated glass according to claim 1, wherein the circumferential edge (8) is uniformly distributed with 3 to 600 grooves (11), and the groove (11) The groove depth is 1~15 μ m. A double-edged cutter wheel for cutting a film-coated glass according to claim 1, wherein the disk surface (1) has a thickness of 0.65 mm and the center hole (2) has a diameter of 0.8 mm; The outer diameter is 2.0~4.0mm.