TWM623014U - Cutting wheel - Google Patents

Abstract

The novel cutting cutter wheel has a plurality of cutting units arranged at intervals and having a V-shaped radial cross section in the circumferential direction of the outer edge of the body, and a first groove is formed between any two cutting units, and at least one is located in the first groove. The second groove on the inner wall of the groove; therefore, when the glass cutting operation is performed, a plurality of the cutting units and the first groove are arranged on the main body, so that when the first groove is cut into the glass, the second groove can be The combination of improving the sharpness of the first groove cutting into the glass makes it easier for the first groove to cut into the glass, so as to reduce problems such as defects or slippery knives during cutting, and effectively improve the yield of cutting products.

Description

cutter wheel

This work is about a cutting tool design, especially a cutting wheel.

Check, with the widespread popularization of smart display terminals and popular consumer goods such as smart phones, tablets, computers, etc., the display panel as a display function is becoming increasingly thin. The single-layer thickness of the crystal) liquid crystal panel is 0.1mm~0.5mm. Usually, a disc-shaped micro-tooth cutting cutter wheel is used to cut the display glass. And the center hole of the cutter wheel (the shaft hole used to install the cutter shaft).

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

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

Therefore, the cutting wheel of the present invention includes a body, a plurality of cutting units formed on the outer periphery of the body in the circumferential direction, a first groove formed between any two of the cutting portions, and at least a second groove on the inner wall of the first groove; wherein, a through hole is opened in the center of the main body, and the radial section of the cutting unit is V-shaped; A plurality of the cutting units and the first grooves are arranged, so that when the glass is cut through the first groove, the first groove must be matched with the second groove to improve the first groove when cutting the corresponding ultra-thin glass. The sharpness of cutting into the glass makes it easier for the first groove to cut into the glass, thereby effectively reducing the occurrence of poor cutting or slippage, and greatly improving the yield of cutting products.

(this new model)

3: Cutting wheel

31: Ontology

32: Cutting unit

33: The 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 according to a preferred embodiment of the present invention.

FIG. 2 is a schematic side view of the cutting wheel of the preferred embodiment.

FIG. 3 is an enlarged schematic view of the partial structure D in FIG. 1 .

FIG. 4 is a schematic diagram of the A-A section, the B-B section and the C-C section of the cutting wheel shown in FIG. 2 .

5a, 5b and 5c correspond to the schematic diagrams of the A-A section, the B-B section and the C-C section in FIG. 4, respectively.

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

Referring to FIG. 1 and FIG. 2 , a preferred embodiment of the present invention, the cutting wheel 3 includes a main body 31 , a plurality of cutting units 32 are formed in the circumferential direction of the outer edge of the main body 31 , and one is formed between any two of the cutting units 32 . A groove 33 and at least one second groove 34 disposed 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 main body 31 is provided with A through hole 311 is used to facilitate installation with a knife shaft (not shown in the figure) that drives the cutting wheel 3 to rotate through the through hole 311. In this embodiment, the diameter of the body 31 can range from 1 mm to 1 mm. 5mm, and the thickness range of the main body 31 can be 0.5mm~2mm, etc., so as to be adjusted and designed according to different cutting requirements or customized requirements. Of course, the diameter of the main body 31 is preferably in the range of 1.8mm~3.0 mm, and the preferred range of the width of the body 31 can be set to 0.65mm, and the material for the cutting wheel 3 includes diamond, polycrystalline or polycrystalline diamond, and the like.

Continuing from the above, the wall of the first groove 33 concave to the center of the main body 31 is the inner wall of the first groove 33, and the part where the first groove 33 and the cutting unit 32 are connected is the groove top, and the first groove 33 The position closest to the center of the main body 31 is the bottom of the groove. In the embodiment, the inner wall surface 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 circumferential direction of the outer edge of the main body 31 . The set quantity of the first groove 33 is the same as the set quantity of the cutting unit 32, and the set quantity of the first groove 33 can range from 50 to 5000, and the set quantity of the first groove 33 can be appropriately selected according to the cutting requirements. The width of the first groove 33 can be 8um-100um, and the depth of the first groove 33 can be designed with dimensions such as 3um-20um.

In addition, the second groove 34 is disposed on the inner wall of the first groove 33 . In the embodiment, the setting position of the second groove 34 may be located at the bottom of the first groove 33 or at the first groove 33 between the groove bottom and the groove top, it can also be closer to the groove bottom of the first groove 33, or closer to the groove top of the first groove 33, or located between the groove top and the groove bottom of the first groove 33. The middle position between the two grooves is set, even at the top of the first groove 33, and the extension length of the second groove 34 on both sides of the V-shaped tip of the cutting unit 32 is the same as that of the first groove 33 in the cutting unit. The extension lengths on both sides of the V-shaped tip of 32 are consistent or inconsistent. In some embodiments, the cutting single The element 32 is formed by the intersection of two inclined planes, and the radial cross section is V-shaped. The first groove 33 extends from one inclined plane to the other inclined plane, and the second groove 34 also extends from one inclined plane to the other inclined plane. Therefore, the The extension length of the first groove 33 on the two inclined surfaces is the same as the extension length of the second groove 34 on the two inclined surfaces, so that better cutting quality can be obtained when the first groove 33 cuts the glass 4 . In addition to improving the cutting performance, it can effectively reduce the probability of poor cutting or sliding knife, so that the problem of poor cutting or sliding knife can be avoided while ensuring the cutting quality; in other embodiments, the second groove 34 can be at least two On the inner wall of the first groove 33, the two second grooves 34 are arranged at intervals along the circumferential direction of the cutting unit 32. Of course, the second grooves 34 can be symmetrically arranged with respect to the groove bottom of the first groove 33, and at the same time The width of the second groove 34 may be less than or equal to a quarter of the width of the first groove 33 , the depth of the second groove 34 may 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 range of the second groove 34 can be 0.5um~10um, of course, the setting shape of the second groove 34 can be V-shaped groove, U-shaped groove. grooves or rectangular grooves, etc. At the same time, the first groove 33 and the second groove 34 can be in the same shape according to different needs, or they can be arranged differently, and the inner wall of the second groove 34 and the first groove 33 The inner walls are connected in a smooth transition.

Continuing the above, in some embodiments, please refer to FIG. 3 , the V-shaped angle of the cutting unit 32 may range from 80 degrees to 160 degrees, and the V-shaped angle of the cutting unit 32 also forms the V-shaped cutting unit 32 The included angle between the two inclined planes is also equivalent to the blade angle of the cutting wheel, and the V-shaped tip of the cutting unit 32 can be formed in the form of a cutting edge e1, and the inner wall of the first groove 33 is formed as The cutting edge e2 that is connected to the cutting unit 32 that is the cutting edge e1 is provided in the form of a cutting edge e3 that is connected to the first groove in the cutting edge e2 form on the inner wall of the second groove 34. set, the cutting unit 32 in the form of the cutting edge e1 and the cutting edge e2 The first groove 33 in the form and the second groove 34 in the form of the cutting edge e3 are circumferentially connected to the outer edge of the main body 31 to form a circular wave-shaped cutting edge as shown in FIG. 5a. As shown in FIG. 4, through the V-shaped tip of the cutting unit 32 of the main body 31 to make a section AA, the obtained section AA will appear as shown in FIG. The obtained cross-section BB will be shown in Figure 5b, and a cross-section CC will be made at a position that is axially deviated from the cross-section BB, and the obtained cross-section CC will be shown in Figure 5c, as previously disclosed in Figures 5a, 5b and 5c. It is shown that in section AA, section BB and section CC, a plurality of first grooves 33 are formed in a wave-like structure, and each of the first grooves 33 is nested with the second groove 34; therefore, when the first groove 33 is nested The first groove 33 can obtain better cutting quality when cutting glass (not shown in the figure), and the second groove 34 can improve the overall cutting performance of the cutting wheel 3, so as to reduce the probability of poor cutting or slippage, and at the same time Through the combination of the first groove 33 and the second groove 34, the cutting quality can be ensured, and glass breakage and cross-section penetrating cracks can be avoided after cutting, resulting in an unsatisfactory yield after cutting thin and brittle materials. When the problem occurs, it helps to alleviate the problems such as poor cutting and sliding knife that may occur during cutting.

Only two specific implementation examples of the cutting wheel 3 are exemplified below.

Example implementation form 1:

It is set that the diameter of the cutting wheel 3 is 2 mm, the thickness of the cutting wheel 3 is 0.65 mm, the diameter of the through hole 311 of the cutting wheel 3 is 0.8 mm, and the blade angle of the cutting wheel 3 is 120 degrees. , the number of the cutting units 32 of the cutting wheel 3 is 120, 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 The second groove 34 is formed by removing material, and the width of the second groove 34 can be 5um, the depth can be 2um, and the first groove 33 and the second groove 34 are formed in the same shape. Smooth transition connections.

In accordance with the above disclosure, the V-shaped tip of the cutting unit 32 is formed as a cutting edge e1, the inner wall of the first groove 33 is formed as a cutting edge e2 connected with 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 with the cutting edge e2, so that the outer circumference of the body 31 is connected to the cutting edge e1, the cutting edge e2 and the cutting edge e3 to form an annular wave shape as a whole. Therefore, compared with the conventional cutting wheel with only the first groove, the configuration of the cutting wheel with the second groove 34 in this embodiment 1 can be used for cutting glass. In the process, the problem of poor cutting and sliding knife is alleviated.

Example implementation form 2:

It is set that the diameter of the cutting wheel 3 is 2 mm, the thickness of the cutting wheel 3 is 0.65 mm, the diameter of the through hole 311 of the cutting wheel 3 is 0.8 mm, and the blade angle of the cutting wheel 3 is 115 degrees. , the number of cutting units 32 of the cutting wheel 3 is 160, 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 The second groove 34 is formed by removing material, the width of the second groove 34 can be 4um, the depth can be 2um, and the first groove 33 and the second groove 34 are connected in a smooth transition.

In accordance with the above disclosure, the V-shaped tip of the cutting unit 32 is formed as a cutting edge e1, the inner wall of the first groove 33 is formed as a cutting edge e2 connected with 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 circumference of the main body 31 is connected through the cutting edge e1, the cutting edge e2 and the cutting edge e3 to form a ring-shaped wavy cutting edge. Therefore, compared with the conventional cutting wheel having only the first groove, the setting of the cutting wheel 3 with the second groove 34 in the second embodiment can be In the process of cutting glass, the problem of poor cutting and sliding knife can be alleviated.

To sum up the above, the cutting wheel of the present invention is provided with a plurality of cutting units and first grooves connected to each other at intervals in the circumferential direction of the outer edge of the body, and at least one second groove disposed on the inner wall of the first groove. In the process of cutting glass, the combination of the first groove and the second groove can not only improve the sharpness of the first groove cutting into the glass, but also ensure the cutting quality and avoid the generation of glass after cutting. Fragmentation and cross-section penetrating cracks occur to reduce problems such as defects or slippage during cutting, and effectively improve the yield of cutting products.

However, the above descriptions are merely to illustrate the preferred embodiments of the present invention, and should not limit the scope of implementation of the present invention, that is, simple equivalent changes and modifications made in accordance with the scope of the patent application for this new model and the contents of the description of the new model. , shall still fall within the scope of this new patent.

(this new model)

3: Cutting wheel

31: Ontology

32: Cutting unit

33: The first slot

34: Second slot

311: Through hole

Claims (13)

A cutting wheel, which comprises a body, a plurality of cutting units formed on the outer periphery of the body, a first groove formed between any two of the cutting units, and at least one second groove formed on the inner wall of the first groove A slot; wherein, a through hole is opened in the center of the body, and the radial section of the cutting unit is V-shaped. The cutting wheel according to claim 1, wherein the V-shaped tip of the cutting unit is formed in the shape of a cutting edge, and the inner wall of the first groove is formed in the shape of a cutting edge connected to the cutting unit in the shape of the cutting edge The inner wall of the second groove is formed in the form of a cutting edge connected to the first groove in the form 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 to the outer periphery 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 the same as the extension length of the first groove on both sides of the V-shaped tip of the cutting unit or inconsistent. The cutting wheel according to claim 1, wherein the inner wall of the first groove is provided with at least two second grooves, 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 the inner wall of the first groove is provided with at least two of the second grooves, 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 can be set at the bottom of the first groove, or the second groove can be set between the bottom and the top of the first groove, or The second groove is arranged on the groove top of the first groove. The cutting wheel of 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 configuration of the second groove can be a V-shaped groove, a U-shaped groove, a rectangular groove, or the like. The cutting wheel according to claim 1, wherein the inner wall of the second groove and the inner wall of the first groove are in a smooth transitional connection. The cutting wheel according to claim 1, wherein the diameter of the main body is in the range of 1 mm to 5 mm, the thickness of the main body is in the range of 0.5 mm to 2 mm, and the V-shaped angle of the cutting unit is in the range of 80 degrees to 160 degrees, 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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