TWI719755B - Cutter wheel - Google Patents

Abstract

A cutter wheel which is suitable for brittle materials provided with smaller thickness includes a plurality of cutting teeth disposed along an outer periphery thereof. Along a peripheral direction of the cutter wheel, each cutting tooth is formed by a tooth root extending to a tooth crest and from the tooth crest to another tooth root to form a tooth blade. The cutting teeth have part of radial cross sections of the tooth blades formed with different included angles. The radial cross section is a cross section passing the tooth blades and a center of the cutter wheel.

Description

Cutting wheel

The invention relates to a cutting tool, especially a cutting wheel used for cutting brittle materials such as glass.

Brittle materials, including glass used in liquid crystal display screens, are usually cut with a disc-shaped micro-tooth cutter wheel. The disc-shaped micro-tooth cutter wheels used for cutting brittle materials have the common feature that they all include a cutting edge, a cutter wheel disc surface and a shaft hole in the cutter wheel center for installing the cutter shaft.

At present, the thickness of brittle materials, especially the glass used in liquid crystal displays, has dropped from 2mm to 0.1mm. The thickness is getting thinner and the hardness is getting bigger and bigger. The width of the cut glass is also getting bigger and bigger. The requirements for breaking efficiency and accuracy are also higher. At the same time, more requirements are put forward for the depth of glass cutting, the depth of cracking and the time of cracking during the glass cutting process, and the cutting performance and cutting stability of the cutter wheel. The requirements are getting higher and higher, which poses a great challenge to the research and development of the cutter wheel.

Therefore, the purpose of the present invention is to provide a cutting wheel suitable for brittle materials with thinner and thinner thickness.

Therefore, a cutting wheel of the present invention includes a plurality of cutting teeth arranged along the outer periphery of the cutting wheel, and along the circumferential direction of the cutting wheel, where each cutting tooth includes a tooth from one side The tooth edge extending from the root to the top of the tooth, and then from the tooth top to the other side of the tooth root; wherein the angle of the cutting tooth at least part of the radial cross-section of the tooth edge changes, and the aforementioned radial cross-section is through the tooth The cross section between the blade and the center of the cutting wheel; therefore, the angle between the tooth tip of the cutting tooth of the cutting wheel and the tooth edge of the radial section of the tooth root is changed to change the tooth edge of the cutting wheel The sharpness of the cutting wheel, and the change in the sharpness of the cutting edge of the cutter wheel, improves the tolerance of the cutter wheel to pressure fluctuations, so that the cutting teeth of the cutter wheel can guarantee the same cutting under the condition of greater pressure fluctuations. Quality, which can better adapt to the cutting of large format glass, and can greatly improve the mass production yield and stability.

In some embodiments, along the tooth tip of the cutting tooth to one side of the tooth root, the angle between the tooth edges of the radial section of at least part of the cutting tooth is gradually reduced or gradually increased.

In some embodiments, along the tooth tip of the cutting tooth to the root of one side, the cutting tooth has an abrupt tooth segment with a significantly reduced or significantly increased angle at the tooth edge of the radial cross-section, and the abrupt tooth segment is related to the phase The adjacent tooth segments form a corner.

In some embodiments, the included angle of the tooth edge of the radial section at the tooth crest of the cutting tooth is larger or smaller than the included angle of the tooth edge of the radial section at the root of the cutting tooth.

In some embodiments, the tooth tip of the cutting tooth includes a tooth tip section with the same included angle at the tooth edge of a radial section or a sharp point.

In some embodiments, along the tooth tip of the cutting tooth to the tooth root on one side, at least a segment of the tooth edge is cut to form a toothless segment.

In some embodiments, the toothless edge section includes a flat surface or a curved surface.

In some embodiments, the toothless edge section is located between the tooth tip, the tooth root, or between the tooth tip and the tooth root of the cutting tooth.

In some embodiments, the tooth profile of each cutting tooth is the same or different.

In some embodiments, the cutting teeth are arranged continuously or spaced apart.

In some embodiments, the cutting teeth are arranged continuously, and the roots of two adjacent cutting teeth are intersected or connected in a smooth transition.

In some embodiments, the cutting cutter wheel includes two disc surfaces arranged opposite to each other, and a first curved surface and a second curved surface respectively connected to the edges of the two disc surfaces, and the first curved surface and the second curved surface are far away from each other. One side of the disc surface intersects, and the cutting tooth is arranged at the intersection area of the first curved surface and the second curved surface.

In some embodiments, the cutter wheel further includes a third curved surface and a fourth curved surface, the first curved surface is connected to a disc surface through the third curved surface, and the second curved surface is connected to another disc surface through the fourth curved surface; Wherein, the tangent of the third curved surface and the tangent of the fourth curved surface intersect to form a fourth included angle, the tangent of the first curved surface and the tangent of the second curved surface intersect to form a fifth included angle, and the fourth included angle is smaller than the fifth included angle.

In some embodiments, along the tooth tip of the cutting tooth to the root of one side, the angle at the tooth edge of the radial section of at least part of the cutting tooth first gradually decreases, then gradually increases, or first gradually increases , And then gradually decrease.

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

The technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the protection scope of the present invention.

The cutting wheel provided by the present disclosure is suitable for cutting brittle materials, which include but are not limited to glass, ceramics, sapphire, silicon wafers and semiconductor materials.

The materials used in the cutting wheel provided by the present disclosure mainly include diamond, polycrystalline diamond, polycrystalline diamond, cemented carbide materials, or composite materials of these materials.

In some embodiments, as shown in Figure 1 (a), Figure 2 (a), Figure 3 (a), Figure 4 (a), Figure 5 (a) and Figure 6 (a), the cutting wheel includes an edge A plurality of cutting teeth 1 are arranged circumferentially on the outer edge of the cutter wheel. Optionally, the cutting wheel has several to thousands of cutting teeth 1 per week, which is convenient for cutting into brittle materials such as glass.

The tooth profile of the cutting teeth 1 of different cutter wheels is different or the same. The tooth profile of each cutting tooth on the same cutting wheel is the same or different.

The number of cutting teeth 1 on different cutting wheels is the same or different.

As shown in Figs. 1(b) and 4(b), the cutting tooth 1 includes a tooth tip 11 and a tooth root 12. The tooth top 11 is far away from the center of the cutting wheel relative to the tooth root 12. It extends from the tooth top 11 in the direction close to the cutting wheel, and the end point of the extension is the tooth root 12.

The distance from the tooth tip 11 of the cutting tooth 1 to the center of the cutting wheel is the first distance, and the distance from the tooth root 12 of the cutting tooth 1 to the center of the cutting wheel is the second distance. The tooth tip 11 and the tooth root 12 are connected by a curved surface transition, and the distance between any part of the tooth tip 11 and the tooth root 12 to the center of the cutting wheel is the third distance. Wherein, the first distance is greater than the second distance, and the third distance is less than the first distance and greater than the second distance.

Along the circumferential direction of the cutting wheel, each cutting tooth 1 includes a tooth edge extending from a tooth root 12 to a tooth tip 11 and then from the tooth tip 11 to the other tooth root 12. That is to say, a ring of tooth edges is provided along the outer periphery of the cutter wheel.

The part of the cutting tooth 1 from the tooth root 12 to the tooth top 11 on one side is symmetrical or asymmetric with respect to the part from the tooth root 12 to the tooth top 11 on the other side.

As shown in Figure 1(d), a radial section is made on any part of the cutting tooth 1, and the angle formed by the two boundary lines at the tooth edge of the radial section is the angle a at the tooth edge. Wherein, the radial cross-section is the cross-section of the tooth edge and the center of the cutter wheel passing through the part.

In the case that the two boundary lines at the tooth edge of the radial section are straight lines, the angle a at the tooth edge is the angle between the two boundary lines at the tooth edge; the two boundary lines at the tooth edge of the radial section are In the case of a curve, the angle a at the tooth edge is the angle between the tangents of the two boundary lines.

As shown in Fig. 2(e) to Fig. 2(g), the angle a at the tooth edge of the radial section of at least part of the cutting tooth 1 changes. That is to say, along the extending direction of the tooth edge, a plurality of radial cross sections are made on the cutting tooth 1, and at least two radial cross sections have different angles a at the tooth edges. Among them, the radial section is the section passing through the center of the tooth edge and the cutter wheel.

The included angle a of the tooth edge of the radial section of the cutting tooth 1 changes, in other words, the included angle a of the tooth edge of at least two radial sections is different, which corresponds to a circle of the tooth edge of the cutting tooth 1 The sharpness is changing, not constant in related technologies.

The larger the angle a at the tooth edge, the worse the sharpness of the tooth edge, and the duller the tooth edge; the smaller the angle a at the tooth edge, the better the sharpness of the tooth edge and the sharper the tooth edge.

In some embodiments, from the tooth tip 11 of the cutting tooth 1 to the tooth root 12 on one side, the angle a at the tooth edge of the radial section of at least part of the cutting tooth 1 gradually decreases first, and then gradually increases, or first Gradually increase, and then gradually decrease.

In some implementations, the tooth edge of at least one cutting tooth 1 has two tooth segments with different sharpness. The angle a at the tooth edge of the radial section corresponding to the two tooth segments with different sharpness is different.

In the TFT (Thin Film Transistor) glass cutting process, in some cases, it is necessary to strictly control the sharpness of the cutter wheel. Too sharp will cause the glass to crack in advance and fail to transfer to the next process smoothly.

Through the design of the change of the angle a at the tooth edge to reduce the sharpness of the tooth edge after cutting into the glass, the control of the prolonged splitting time can be achieved, so that the glass will not crack in advance before being transferred to the next process.

In the process of cutting strengthened glass, the cutting edge of the glass is usually not too sharp at the first time. Too sharp will cause the strengthened glass to break into fragments. However, after cutting, the sharpness of the cutting edge is required to accelerate downward penetration. This requires sharpening of the angle between the tip of the tooth and the root of the blade.

In addition, with the large-scale production of the 10th generation line (the tenth generation LCD panel line) and the 10.5 generation line, the glass format is getting larger and larger, and the large-format glass cannot guarantee that every part of the glass format is subjected to the same cutting pressure during cutting. In addition, due to gravity and other factors in the glass cutting process, the glass will be deformed locally. The increased fluctuation of the cutting instability and the deformation of the glass surface will cause some parts of the glass to be excessively stressed and cracked in advance. The local stress is too small to be cracked, which brings great troubles to the mass production cutting of TV panels such as 70 inches to 100 inches, and this trouble has not been solved well for many years.

However, in some embodiments disclosed in the present invention, the angle a between the tooth tip 11 of the cutting tooth 1 and the tooth edge of the tooth root 12 is gradually increased to change the sharpness of the blade of the cutter wheel. The change improves the tolerance of the cutter wheel to pressure fluctuations, so that the cutter wheel teeth can guarantee the same cutting quality under the condition of greater pressure fluctuations, so that it can better adapt to the cutting of large-format glass and is suitable for mass production. The yield and stability have been greatly improved.

In some embodiments, as shown in Fig. 2(b) and Fig. 2(c), taking the line L between the tooth root 11 and the center of the cutting wheel as a reference, three radial directions are made in sequence along the extending direction of the tooth edge. The cross sections are respectively the first radial cross section, the second radial cross section and the third radial cross section.

The included angle between the first radial section and the line L is the first included angle b1.

The included angle between the second radial section and the line L is the second included angle b2.

The angle between the third radial section and the line L is the third angle b2.

As shown in Figure 2(e), the included angle at the tooth edge of the first radial section is the included angle a1 at the first tooth edge.

As shown in Figure 2(f), the included angle at the tooth edge of the second radial section is the angle a2 at the second tooth edge.

As shown in Figure 2(g), the angle at the tooth edge of the third radial section is the angle a3 at the third tooth edge.

In some implementations, a1>a2>a3. Or, at least two angles of a1 and a2 and a3 are different.

The angle a at the tooth edge of the radial section of the cutting tooth 1 changes, and there are many ways to change it, and the angle a at the tooth edge can be gradual or abrupt.

In some embodiments, from the tooth tip 11 of the cutting tooth 1 to the tooth root 12 on one side, the angle a at the tooth edge of the radial section of at least part of the cutting tooth 1 gradually decreases or gradually increases. Correspondingly, along the tooth tip 11 of the cutting tooth 1 to the tooth root 12 on one side, the sharpness of the tooth edge of the cutting tooth 1 gradually increases or gradually decreases.

For example: in one embodiment, the angle a of the tooth edge of the radial section at the tooth crest 11 of the cutting tooth 1 is 110°. Along the tooth crest 11 to the root 12 of the cutting tooth 1, the tooth edge of the radial cross section The angle a gradually changes from 110° to 130°.

In another embodiment, the included angle a of the tooth edge of the radial section at the tooth top 11 of the cutting tooth 1 is 110°, from the tooth top 11 of the cutting tooth 1 to the middle position of the tooth top 11 and the tooth root 12, The angle a at the tooth edge of the radial section gradually changes from 110° to 130°. Then, along the intermediate position of the tooth tip 11 and the tooth root 12 of the cutting tooth 1 to the tooth root 12, the angle a of the tooth edge of the radial section changes from 130° gradually changes to 170°, so there will be a different angle change trend from the tip to the root of the tooth, and there will be a sudden change in the middle of the above, which is the position of 130°.

In some embodiments, as shown in Figure 3(a) to Figure 3(c), along the tooth tip 11 of the cutting tooth 1 to the root 12 on one side, the cutting tooth 1 has a radial cross-section at the tooth edge of the angle a is significantly reduced For the abrupt tooth segment 13 that is small or significantly enlarged, the abrupt tooth segment 13 forms a corner 14 with the adjacent tooth segment (as shown in Figure 3(c)).

In some embodiments, the angle a between the tooth edges of the abrupt tooth segment 13 is greater than the angle a between the tooth edges of the adjacent two tooth segments.

In some embodiments, the angle a between the tooth edges of the abrupt tooth segment 13 is smaller than the angle a between the tooth edges of the adjacent two tooth segments.

In some embodiments, the angle a at the tooth edge of the abrupt tooth segment 13 is greater than the angle a at the tooth edge of the adjacent tooth segment, and is smaller than the angle a at the tooth edge of the other adjacent tooth segment.

In some embodiments, there are at least three tooth segments with different sharpness along the tooth tip 11 of the cutting tooth 1 to the tooth root 12 on one side thereof, and there are three tooth segments along the tooth tip 11 to the tooth root 12 of the cutting tooth 1 The sharpness of the segments decreases or increases sequentially.

In some embodiments, there are at least three tooth segments with different sharpness along the tooth tip 11 of the cutting tooth 1 to the tooth root 12 on one side, and the tooth tip 11 to the tooth root 12 along the cutting tooth 1 are located in the middle. The sharpness of the tooth segments is greater or less than the sharpness of the tooth segments located on both sides.

In some embodiments, the included angle a of the tooth edge of the radial section at the crest 11 of the cutting tooth 1 is greater than or smaller than the included angle a of the tooth edge of the radial section at the root 12 of the cutting tooth 1.

That is, the sharpness of the tooth edge located at the tooth tip 11 of the cutting tooth 1 is worse than or better than the sharpness of the tooth edge located at the root 12 of the cutting tooth 1.

In some embodiments, as shown in FIG. 2(c), the tooth top 11 of the cutting tooth 1 includes a tooth top section 15 with the same included angle a at the tooth edge of the radial section, or it can be said that the tooth top of the cutting tooth 1 11 includes a tooth segment with the same sharpness.

In some embodiments, as shown in FIG. 3( b ), the tooth top 11 of the cutting tooth 1 includes a sharp point 16.

In some embodiments, as shown in Fig. 6(a) to Fig. 6(c), one side root 12 to the crest 11 of the cutting tooth 1, and then from the crest 11 to the other side root 12 are all arcs, namely : The tooth edge of the entire cutting tooth is arc-shaped and has a smooth transition. It is equivalent to the sharp point 16 in Figure 3(b) being rounded.

In the initial state, the outer edge of the cutting wheel forms a circle of ridges. When the cutting tooth 1 is processed on the cutting wheel, the crest 11 of the cutting tooth 1 can retain part of the ridgeline as the tooth edge, or the entire tooth of the cutting tooth 1 The tip 11 is smoothly processed, so that the cutting tooth 1 does not have the initial state of the cutting edge of the cutter wheel (as shown in Figure 6 (a) ~ Figure 6 (c)).

The foregoing embodiments change the sharpness of the cutter wheel by changing the size of the included angle a of the tooth edge of the radial section of the cutting tooth 1.

In some embodiments, as shown in Figure 4(a) to Figure 5(b), along the tooth tip 11 of the cutting tooth 1 to the tooth root 12 on one side, at least one tooth edge is cut to form a toothless edge segment 17 . That is, the sharpness of the cutting wheel is changed by destroying the local blade.

In some embodiments, the toothless edge section 17 includes a flat surface or a curved surface.

In some embodiments, the toothless edge section 17 is located on the tooth top 11 of the cutting tooth 1.

In some embodiments, as shown in FIGS. 5( a) and 5( b ), the toothless edge section 17 is located at the root 12 of the cutting tooth 1.

In some embodiments, as shown in FIGS. 4( a) to 4 (c ), the toothless edge section 17 is located between the tooth tip 11 and the tooth root 12 of the cutting tooth 1.

In some embodiments, the cutting teeth 1 are arranged continuously or spaced apart.

In some embodiments, as shown in FIG. 2( b ), each cutting tooth 1 is arranged continuously, and the tooth roots 12 of two adjacent cutting teeth 1 intersect.

In some embodiments, as shown in FIG. 1( b ), the cutting teeth 1 are arranged continuously, and the roots 12 of two adjacent cutting teeth 1 are smoothly connected.

In some embodiments, as shown in Figure 1 (a), Figure 1 (c), Figure 5 (a) and Figure 5 (b), the cutting wheel includes two oppositely arranged disc surfaces 2, and respectively and The first curved surface 3 and the second curved surface 4 are connected by the edges of the two disc surfaces. The first curved surface 3 and the second curved surface 4 intersect on the side away from the disc surface, forming a V shape, and the intersection of the first curved surface 3 and the second curved surface 4 forms a circle of edge ridges, and the cutting teeth 1 are provided on the first curved surface 3 In the intersecting area with the second curved surface 4, the tooth edges are arranged along the edge line.

In some embodiments, as shown in Figure 2 (a), Figure 2 (d), Figure 3 (a), Figure 3 (c), Figure 4 (a), Figure 4 (c) and Figure 6 (c) , The cutting wheel includes two disc surfaces 2 arranged oppositely, and also includes a first curved surface 3, a second curved surface 4, a third curved surface 7 and a fourth curved surface 8.

The first curved surface 3 is connected to a disc surface 2 through a third curved surface 7, and the second curved surface 4 is connected to another disc surface 2 through a fourth curved surface 8; the first curved surface 3 and the second curved surface 4 intersect on the side away from the disc surface , Is V-shaped, and the intersection of the first curved surface 3 and the second curved surface 4 forms a circle of edge ridgelines. The cutting teeth 1 are arranged in the intersection area of the first curved surface 3 and the second curved surface 4, and the tooth edges are arranged along the edge ridgelines.

Wherein, the tangent of the third curved surface 7 and the tangent of the fourth curved surface 8 intersect to form a fourth included angle, the tangent of the first curved surface 3 and the tangent of the second curved surface 4 intersect to form a fifth included angle, and the fourth included angle is smaller than the fifth included angle.

The provision of the third curved surface 7 and the fourth curved surface 8 facilitates the chip removal of the cutting teeth 1 arranged at the intersection area of the first curved surface 3 and the second curved surface 4 during the cutting of materials.

As shown in Figure 1 (a), Figure 2 (a), Figure 3 (a), Figure 4 (a), Figure 5 (a) and Figure 6 (a), the center of the cutter wheel is provided with a shaft hole 5, with To install the cutter shaft.

As shown in Figure 1 (c), Figure 2 (d), Figure 3 (c), Figure 4 (c), Figure 5 (b), Figure 6 (b) and Figure 6 (c), the cutting of the cutting wheel The tooth shapes of the teeth 1 are different, and correspondingly, the shapes of the grooves 6 formed at the roots of two adjacent cutting teeth 1 are also different.

In some embodiments, as shown in FIGS. 7(a) and 7(b), the distance from the edge of the groove 6 formed at the root of two adjacent cutting teeth 1 to the edge line where the tooth top 11 is located different. The distance from a part of the edge of the groove 6 to the tooth top 11 is greater than the distance from another part of the edge of the groove 6 to the tooth top 11.

The present disclosure provides seven embodiments of the cutter wheel.

Figure 1 (a) ~ Figure 1 (d) shows the first embodiment of the cutter wheel.

Figure 2 (a) ~ Figure 2 (g) shows the second embodiment of the cutter wheel.

Figure 3 (a) ~ Figure 3 (c) shows the third embodiment of the cutter wheel.

Figure 4 (a) ~ Figure 4 (c) are the fourth embodiment of the cutter wheel.

Figure 5 (a) and Figure 5 (b) show the fifth embodiment of the cutter wheel;

Figure 6 (a) ~ Figure 6 (c) are the sixth embodiment of the cutter wheel;

Figure 7(a) and Figure 7(b) show the seventh embodiment of the cutter wheel.

In the absence of a clear denial, the technical features of one of the embodiments can be beneficially combined with the other one or more embodiments.

The cutting cutter wheel provided by the present invention can be provided with the structure of the blade teeth and the blade groove of the cutter wheel according to the needs of sharpness, so as to adapt to the cutting of brittle materials with different sharpness requirements.

The cutter wheel provided by the present invention controls the sharpness of the cutter wheel by changing the included angle a of the tooth edge of the blade or destroying the local blade.

In the description of the present invention, it should be understood that the terms "first", "second", "third" and other terms used to define parts are only for the convenience of distinguishing the above parts, and unless otherwise stated, The above words have no special meaning, and therefore cannot be understood as a limitation on the protection scope of the present invention.

However, what has been described above is only to illustrate the preferred embodiments of the present invention, and should not be used to limit the scope of implementation of the present invention, that is, simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the description of the invention , Should still fall within the scope of the invention patent.

[this invention] 1: cutting teeth 11: tooth top 12: Tooth root 13: Mutant tooth segment 14: corner 15: tooth top section 16: sharp point 17: No tooth edge section 2: Disc noodles 3: The first surface 4: The second surface 5: Shaft hole 6: Groove 7: The third surface 8: Fourth surface a: the angle of the tooth edge of the radial section a1: the angle at the edge of the first tooth a2: The angle at the edge of the second tooth a3: included angle at the third tooth edge b1: the first angle b2: second included angle b3: third angle L: The connection line between the tooth root and the center of the cutting wheel

Figure 1 (a) is a three-dimensional schematic diagram of a cutter wheel provided by the first embodiment of the present invention; Figure 1 (b) is a schematic front view of the cutter wheel provided by the first embodiment of the present invention; Figure 1 (c) is a schematic side view of the cutter wheel provided by the first embodiment of the present invention; Figure 1 (d) is a schematic diagram of a radial cross-section of the cutter wheel provided by the first embodiment of the present invention; Figure 2 (a) is a three-dimensional schematic diagram of a cutter wheel provided by a second embodiment of the present invention; Figure 2 (b) is a schematic front view of the cutting wheel provided by the second embodiment of the present invention; Figure 2(c) is an enlarged schematic view of a cutting tooth provided by the second embodiment of the present invention; Figure 2 (d) is a schematic side view of the cutting wheel provided by the second embodiment of the present invention; Figure 2(e) is a partial enlarged schematic view of the first radial cross-section of the cutter wheel provided by the second embodiment of the present invention; Figure 2(f) is a partial enlarged schematic view of a second radial cross-section of the cutter wheel provided by the second embodiment of the present invention; Figure 2 (g) is a partial enlarged schematic view of a third radial cross-section of the cutter wheel provided by the second embodiment of the present invention; Figure 3 (a) is a three-dimensional schematic diagram of a cutter wheel provided by a third embodiment of the present invention; Figure 3(b) is a schematic front view of a cutter wheel provided by the third embodiment of the present invention; Figure 3(c) is a schematic side view of the cutter wheel provided by the third embodiment of the present invention; Figure 4 (a) is a three-dimensional schematic diagram of a cutter wheel provided by a fourth embodiment of the present invention; Figure 4 (b) is a schematic front view of a cutter wheel provided by a fourth embodiment of the present invention; Figure 4(c) is a schematic side view of a cutter wheel provided by the fourth embodiment of the present invention; Figure 5 (a) is a perspective schematic view of a cutter wheel provided by a fifth embodiment of the present invention; Figure 5 (b) is a schematic side view of a cutter wheel provided by a fifth embodiment of the present invention; Figure 6 (a) is a perspective schematic view of a cutter wheel provided by a sixth embodiment of the present invention; Figure 6(b) is a schematic front view of a cutter wheel provided by a sixth embodiment of the present invention; Figure 6(c) is a schematic side view of a cutter wheel provided by a sixth embodiment of the present invention; Figure 7 (a) is a perspective schematic view of a cutter wheel provided by a seventh embodiment of the present invention; Fig. 7(b) is a schematic front view of the cutter wheel provided by the seventh embodiment of the present invention.

1: cutting teeth

2: Disc noodles

3: The first surface

4: The second surface

5: Shaft hole

Claims (14)

A cutting cutter wheel is characterized in that a plurality of cutting teeth are arranged circumferentially on the outer edge of the cutting cutter wheel, and along the circumferential direction of the cutting cutter wheel, each cutting tooth includes a tooth root to a tooth tip, and then from The tooth edge extending from the tooth tip to the other side of the tooth root; the angle between the tooth edge of the radial section of at least part of the cutting tooth is variable; wherein, the radial section is through the tooth edge and the cutting cutter wheel Cross section of the center. The cutting wheel according to the first item of the scope of patent application, wherein, along the tooth tip of the cutting tooth to the root of one side, the angle of the tooth edge of the radial section of at least part of the cutting tooth is gradually reduced or gradually increased Big. The cutting cutter wheel according to item 1 of the scope of patent application, wherein, along the tooth tip of the cutting tooth to the root of one side, the cutting tooth has a sudden change in which the angle between the tooth edge of the radial section is significantly reduced or significantly increased Tooth segment, the sudden change tooth segment forms a corner with the adjacent tooth segment. The cutting wheel according to item 1 of the scope of patent application, wherein the included angle at the tooth edge of the radial section at the tooth crest of the cutting tooth is greater than or smaller than the angle at the tooth edge of the radial section at the root of the cutting tooth Angle. The cutting wheel according to the first item of the scope of patent application, wherein the tooth top of the cutting tooth includes a tooth top section with the same included angle at the tooth edge of a radial section or a sharp point. According to the cutting cutter wheel described in item 1 of the scope of patent application, at least a segment of the tooth edge is cut from the tooth tip of the cutting tooth to the tooth root on one side thereof to form a toothless edge segment. The cutting cutter wheel according to item 6 of the scope of patent application, wherein the toothless edge section includes a flat surface or a curved surface. The cutting cutter wheel according to item 6 of the scope of patent application, wherein the toothless edge section is located between the tooth tip, the tooth root, or between the tooth tip and the tooth root of the cutting tooth. According to the cutting wheel described in item 1 of the scope of patent application, the tooth profile of each cutting tooth is the same or different. According to the cutting cutter wheel described in item 1 of the scope of patent application, the cutting teeth are arranged continuously or at intervals. According to the cutting cutter wheel described in item 1 of the scope of patent application, each of the cutting teeth is arranged continuously, and the roots of two adjacent cutting teeth are intersected or connected smoothly. The cutting wheel according to item 1 of the scope of patent application further includes two disc surfaces arranged oppositely, and a first curved surface and a second curved surface respectively connected to the edges of the two disc surfaces. The first curved surface Intersect with the side of the second curved surface away from the disc surface, and the cutting teeth are arranged in the intersecting area of the first curved surface and the second curved surface. The cutting wheel according to item 12 of the scope of patent application, which further includes a third curved surface and a fourth curved surface, the first curved surface is connected to a disc surface through the third curved surface, and the second curved surface is connected through the fourth curved surface Another disc surface; wherein the tangent of the third curved surface and the tangent of the fourth curved surface intersect to form a fourth included angle, and the tangent of the first curved surface intersects the tangent of the second curved surface to form The fifth included angle, the fourth included angle is smaller than the fifth included angle. According to the cutting wheel described in item 1 of the scope of patent application, along the tooth tip of the cutting tooth to the root of one side, the angle of the tooth edge of the radial section of at least part of the cutting tooth gradually decreases first, and then gradually increases. Large, or gradually increase first, and then gradually decrease.

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