TWI789053B - Cutter wheel (2) - Google Patents

Abstract

A cutter wheel (2) includes a plurality of cutting units formed on a circumferential periphery of a body and spaced apart from each other. A radial section of the cutting units is formed in a V-shape. A first groove is formed between any two cutting units. At least one second groove is disposed in an inner peripheral wall of the first groove. Hence, during a cutting operation of glass, the second groove can help increase the cutting sharpness of the first groove when the cutting units and the first groove cut into the glass to facilitate the cutting operation, assist the first groove in cutting into the glass easily, prevent the cutting wheel from slipping on the glass or cutting unfavorably, and improve the yield of cut products effectively.

Description

Cutting wheel (2)

The present invention relates to a design of a cutting tool, in particular to a cutting wheel (2).

According to the survey, with the widespread popularization of intelligent display terminals and popular consumer goods such as smart phones, tablets, and computers, the display panel used as a display function is becoming increasingly ultra-thin. Crystal) The single-layer thickness of the liquid crystal panel is 0.1mm~0.5mm, and the disc-shaped micro-tooth cutting wheel is usually used to cut the display glass, and the disc-shaped micro-tooth cutting wheel generally includes a cutting blade, a knife wheel surface And the center hole of the cutter wheel (the shaft hole used to install the cutter shaft).

However, in some related technologies, when using the cutting wheel to cut brittle materials such as glass, problems such as poor local cutting or slipping of the knife are often encountered, resulting in glass fragmentation and cross-sectional penetration during the cutting process. Therefore, the yield of thin and brittle materials after cutting is not ideal, which needs to be improved.

Therefore, the purpose of the present invention is to provide a cutting wheel (2), which can help to alleviate the problems of poor cutting and slipping when cutting brittle materials.

Thus, the cutting wheel (2) of the present invention comprises a body, a plurality of cutting units formed in the peripheral direction of the body, a first groove formed between any two cutting parts, and at least one groove located in the first groove. The second groove of the inner wall; wherein, the center of the body is provided with a through hole, and the radial section of the cutting unit is V-shaped; therefore, by having a plurality of the cutting unit and the first groove along the outer edge of the body The setting is so that when the corresponding ultra-thin glass is cut, when the glass is cut through the first groove, the first groove must cooperate with the second groove to improve the sharpness of the first groove cutting into the glass, and promote the The first groove makes it easier to cut into the glass, thereby effectively reducing the occurrence of poor cutting or slipping of the knife, and greatly improving the yield rate of cutting products.

The aforementioned and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of preferred embodiments with reference to the drawings.

Referring to Fig. 1, Fig. 2, a preferred embodiment of the present invention, this cutter wheel (2) 3 comprises a main body 31, plurally forms the cutting unit 32 of this main body 31 outer edge circumferential direction, one is formed in any two this cutting unit 32 Between the first groove 33, and at least one second groove 34 provided on the inner wall of the first groove 33; wherein, the radial direction of the cutting unit 32 is V-shaped, and the center of the body 31 has a through hole 311 , in order to facilitate installation with a cutter shaft (not shown) that drives the cutter wheel (2) 3 to rotate through the through hole 311, and in this embodiment, the diameter range of the body 31 can be 1mm~ 5mm, and the thickness range of the body 31 can be 0.5mm~2mm, etc., in order to adjust the design for different cutting requirements or custom requirements. Of course, the diameter of the body 31 can be in the range of 1.8mm~3.0 mm, and the preferred range of the width of the body 31 can be set at 0.65mm, and the cutting wheel (2) 3 is made of diamond, polycrystalline or polycrystalline diamond and the like.

Continuing from the above, the wall surface of the first groove 33 concave to the center of the body 31 is the inner wall of the first groove 33, and the part where the first groove 33 is connected to the cutting unit 32 is the groove top, and the first groove 33 is the bottom of the groove closest to the center of the body 31. In the embodiment, the inner wall of the first groove 33 is connected with the cutting unit 32 in a smooth transition, and the first groove 33 is located in the peripheral direction of the outer edge of the body 31. The number of settings is the same as that of the cutting unit 32, and the number of the first grooves 33 can range from 50 to 5000, and the number of the first grooves 33 can be appropriately selected according to cutting requirements. The width of the first groove 33 may be 8um~100um, and the depth of the first groove 33 may be 3um~20um.

In addition, the second groove 34 is arranged on the inner wall of the first groove 33. In an embodiment, the installation position of the second groove 34 can be located at the groove bottom of the first groove 33 or at the bottom of the first groove 33. between the groove bottom and the groove top of the first groove 33, or closer to the groove bottom of the first groove 33, or closer to the groove top of the first groove 33, or between the groove top and the groove bottom of the first groove 33 The middle position etc. are set between, even be positioned at the groove top of this first groove 33, at the same time this second groove 34 is in this cutting unit 32 along the extension length of V-shaped point both sides and this first groove 33 is in this cutting unit The extension lengths on both sides of the V-shaped tip of 32 are consistent or inconsistent. In some embodiments, the cutting unit 32 is formed by the intersection of two inclined planes, and the radial section is V-shaped. The first groove 33 is formed from one inclined plane. Extend to another slope, and the second groove 34 also extends from one slope to another slope, so the extension length of the first groove 33 on the two slopes is the same as the extension length of the second groove 34 on the two slopes. It is consistent, so that when the first groove 33 cuts the glass 4, better cutting quality can be obtained, and the cutting performance can be improved, and the probability of bad cutting or sliding knife can be effectively reduced, so that bad cutting or poor cutting can be avoided while ensuring the cutting quality. The problem of the sliding knife appears; in some embodiments, the second groove 34 can be at least two on the inner wall of the first groove 33, and the two second grooves 34 are spaced along the peripheral direction of the cutting unit 32 Setting, of course, the second groove 34 can be arranged symmetrically with respect to the groove bottom of the first groove 33, and the width of the second groove 34 can be less than or equal to a quarter of the width of the first groove 33, the The depth of the second groove 34 can be less than or equal to one-third of the depth of the first groove 33, and the preferred width range of the second groove 34 can be 2um ~ 25um, the preferred depth of the second groove 34 The range can be 0.5um~10um. Of course, the arrangement form of the second groove 34 can be V-shaped groove, U-shaped groove or rectangular groove, etc. At the same time, the first groove 33 and the second groove 34 can be formed according to different requirements. The shapes are the same, but different arrangements can also be made, and the inner wall of the second groove 34 and the inner wall of the first groove 33 meet in a smooth transition.

Still above, in some embodiments, please refer to FIG. 3 , the V-shaped angle range of the cutting unit 32 can be 80 degrees to 160 degrees, and the V-shaped angle of the cutting unit 32 forms a V-shaped cutting unit 32 at the same time. The included angle between the two slopes is also equivalent to the blade angle of the cutting wheel (2), and the V-shaped tip of the cutting unit 32 can be formed to be a cutting edge e1, and the inner part of the first groove 33 The wall is formed as the cutting edge e2 that is connected with the cutting unit 32 that is the cutting edge e1, and the inner wall of the second groove 34 is formed as the cutting edge that is connected with the first groove that is the cutting edge e2. The e3 aspect is arranged, and is the cutting unit 32 of the cutting edge e1 aspect, the first groove 33 of the cutting edge e2 aspect and the second groove 34 of the cutting edge e3 aspect on the outer edge axis of the body 31 To be connected to form the form of the circular wave-shaped cutting edge as shown in Figure 5a, and as shown in Figure 4, the V-shaped tip of the cutting unit 32 of the body 31 is used to make a cross-section A-A, and the obtained cross-section A-A It will appear as shown in Figure 5a, and the cross-section B-B is made at the position of the axial deviation from the cross-section A-A, the obtained cross-section B-B will be shown in Figure 5b, and the cross-section C-C is made at the position of the axial deviation from the cross-section B-B, the obtained cross-section C-C will be as shown in Figure 5c, as shown in Figure 5a, Figure 5b and Figure 5c disclosed above, in section A-A, section B-B and section C-C are all wave-like structures formed by a plurality of first grooves 33, And each of the first grooves 33 is nested with the second groove 34; therefore, when the first groove 33 cuts glass (not shown), better cutting quality can be obtained, and the second groove 34 can Improve the overall cutting performance of the cutting wheel (2) 3 to reduce the probability of poor cutting or slipping, and at the same time, the combination of the first groove 33 and the second groove 34 can avoid the occurrence of post-cutting while ensuring the cutting quality. Glass breakage and cross-section penetrating cracks, etc., cause the problem of unsatisfactory yield of thin and brittle materials after cutting, which helps to alleviate the problems of poor cutting and slippage that occur during cutting.

Below, only give examples of two specific implementation examples of the cutting wheel (2) 3.

Example implementation pattern 1:

It is set to the diameter of this cutter wheel (two) 3 is 2mm, and the thickness of this cutter wheel (two) 3 is 0.65mm, and the diameter of the through hole 311 of this cutter wheel (two) 3 is 0.8mm, and the cutting The blade angle of the cutter wheel (two) 3 is 120 degrees, the number of cutting units 32 of the cutting cutter wheel (two) 3 is 120, and the width of the first groove 33 between any two cutting units 32 is 40um. , the depth is 8um, and the inner wall of the first groove 33 can be formed with the second groove 34 by removing material, and the width of the second groove 34 can be 5um, the depth can be 2um, and the first groove 33 It is connected with the second groove 34 in a smooth transition.

Coordinating with the disclosure above, the V-shaped tip of the cutting unit 32 is formed in the form of the cutting edge e1, the inner wall of the first groove 33 is formed in the form of the cutting edge e2 connected to the cutting edge e1, and the second The inner wall of the groove 34 is formed in the form of a cutting edge e3 connected to the cutting edge e2, so that the outer edge of the body 31 is connected to form an annular wave shape through the connection of the cutting edge e1, the cutting edge e2 and the cutting edge e3. Therefore, if compared with the known cutting wheel with only the first groove, the setting of the cutting wheel (2) with the second groove 34 in the present embodiment one can be Alleviate the problem of poor cutting and sliding knife in the process of cutting glass.

Example implementation pattern 2:

It is set to the diameter of this cutter wheel (two) 3 is 2mm, and the thickness of this cutter wheel (two) 3 is 0.65mm, and the diameter of the through hole 311 of this cutter wheel (two) 3 is 0.8mm, and the cutting The blade angle of the cutter wheel (two) 3 is 115 degrees, the number of cutting units 32 of the cutting cutter wheel (two) 3 is 160, and the width of the first groove 33 between any two cutting units 32 is 30um. , the depth is 6um, and the inner wall of the first groove 33 can be formed with the second groove 34 by removing material, and the width of the second groove 34 can be 4um, the depth can be 2um, and the first groove 33 It is connected with the second groove 34 in a smooth transition.

Coordinating with the disclosure above, the V-shaped tip of the cutting unit 32 is formed in the form of the cutting edge e1, the inner wall of the first groove 33 is formed in the form of the cutting edge e2 connected to the cutting edge e1, and the second The inner wall of the groove 34 is formed as a cutting edge e3 connected with the cutting edge e2, so that the outer edge of the body 31 is connected to form an annular wavy cutting edge through the overall circumferential direction of the cutting edge e1, the cutting edge e2 and the cutting edge e3 Therefore, if compared with the known cutting wheel with only the first groove, the setting of the cutting wheel (two) 3 with the second groove 34 in the second embodiment can be used in cutting Alleviate the problem of poor cutting and sliding knife in glass process.

To sum up the foregoing, the cutting wheel (2) of the present invention is provided with a plurality of cutting units and first grooves connected at intervals in the circumferential direction of the outer edge of the body, and at least one second groove arranged on the inner wall of the first groove, In this way, in the process of cutting glass, the combination of the first groove and the second groove is used, not only can the second groove cooperate to improve the sharpness of the first groove cutting into the glass, but also can avoid cutting after-effects while ensuring the cutting quality. Glass breakage and cross-section penetrating cracks occur to reduce the problems of defects or slipping knives during cutting, and effectively improve the yield of cutting products.

But the above is only to illustrate the preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, all the simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention , should still fall within the scope covered by the patent of the present invention.

(this invention)

3: Cutting knife wheel (2)

31: Ontology

32: Cutting unit

33: first slot

34: second slot

311: through hole

e1: cutting edge

e2: cutting edge

e3: cutting edge

Fig. 1 is a schematic front view of the cutting wheel (2) according to a preferred embodiment of the present invention. Fig. 2 is a schematic side view of the cutting wheel (2) of the preferred embodiment. FIG. 3 is an enlarged schematic view of a partial structure D in FIG. 1 . Fig. 4 is the schematic diagram of A-A section, B-B section and C-C section of the cutter wheel (2) shown in Fig. 2 . Fig. 5a, Fig. 5b and Fig. 5c respectively correspond to the schematic diagrams of the A-A section, the B-B section and the C-C section in Fig. 4 .

(this invention)

3: Cutting knife wheel (2)

31: Ontology

32: Cutting unit

33: first slot

34: second slot

311: through hole

Claims (13)

A cutting wheel, which includes a body, a plurality of cutting units formed on the outer periphery of the body and formed by the intersection of two inclined surfaces, a first groove formed between any two cutting units, and at least one The second groove on the inner wall of the first groove; wherein, the center of the body is provided with a through hole, and the radial section of the cutting unit is V-shaped, and the wall surface of the first groove concave toward the center of the body is the first The inner wall of the groove, and the part where the first groove is connected with the cutting unit is the groove top, and the inner wall of each first groove is connected along the outside of the body by a groove top connected by the first groove and a cutting unit The edge extends circumferentially to the top of another groove where the first groove is connected with another adjacent cutting unit, thereby forming a width of the first groove, and at the same time, the wall surface of the second groove concave to the center of the body is the second groove The inner wall of the second groove extends along the outer edge of the main body in a circumferential direction to form a width of the second groove, and the width of the second groove is smaller than the width of the first groove. The cutting wheel according to claim 1, wherein the V-shaped tip of the cutting unit is formed in the form of a cutting edge, and the inner wall of the first groove is formed in the form of a cutting edge connected with the cutting unit in the form of a cutting edge The inner wall of the second groove is formed in the shape of a cutting edge connected with the first groove in the shape of a cutting edge. The cutting wheel according to claim 2, wherein the cutting edge, the cutting edge and the cutting edge are circumferentially connected at the outer edge of the body to form an annular cutting edge portion. The cutting wheel according to claim 1, wherein the extension length of the second groove on both sides of the V-shaped tip of the cutting unit is consistent with the extension length of the first groove on both sides of the V-shaped tip of the cutting unit Or for inconsistency. The cutting wheel according to claim 1, wherein at least two second grooves are provided on the inner wall of the first groove, and the two second grooves are arranged at intervals along the circumferential direction of the cutting unit. The cutting wheel according to claim 1, wherein at least two second grooves are provided on the inner wall of the first groove, and the two second grooves are arranged symmetrically with respect to the groove bottom of the first groove. The cutting wheel according to claim 1, wherein the second groove is set at the bottom of the first groove, or the second groove is set between the bottom and the top of the first groove, or the The second groove is arranged on the groove top of the first groove. The cutting wheel according to claim 1, wherein the width of the second groove is less than or equal to a quarter of the width of the first groove. The cutting wheel according to claim 1, wherein the width of the second groove is less than or equal to one-third of the width of the first groove. The cutting wheel according to claim 1, wherein the second groove is configured as a V-shaped groove, a U-shaped groove or a rectangular groove. The cutting wheel according to claim 1, wherein the inner wall of the second groove is connected with the inner wall of the first groove in a smooth transition. According to the cutting wheel described in Claim 1, wherein, the diameter of the body ranges from 1mm to 5mm, the thickness of the body ranges from 0.5mm to 2mm, and the V-shaped angle of the cutting unit ranges from 80° to 160°, The number of the first grooves ranges from 50 to 5000, the width of the first grooves is 8um to 100um, and the depth of the first grooves is 3um to 20um. The cutting wheel according to claim 12, wherein, the width of the second groove ranges from 2um to 25um, and the depth of the second groove ranges from 0.5um to 10um.

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