TWI610896B - Cutter wheel with two cutting edges - Google Patents

Abstract

The invention relates to a double-blade cutting cutter wheel, comprising: a circular body portion and a cutting The cutting portion is formed along a periphery of the circular body portion, and includes a plurality of first blade portions, a plurality of second blade portions and a plurality of grooves, and the plurality of second blade portions are respectively formed in the plurality of grooves, each first The blade portion is formed by the intersection of a first blade surface and a second blade surface, and each of the second blade portions is formed by the intersection of a third blade surface and a fourth blade surface. Thereby, the plurality of first blade portions and the plurality of second blade portions can improve the sharpness of the cutter wheel, and the plurality of grooves enhance the chip removing effect and improve the cutting processing quality of the cutter wheel.

Description

Double blade cutting wheel

The invention relates to a double-blade cutting cutter wheel, in particular to a double-blade cutting cutter wheel which utilizes a plurality of first blade portions, a plurality of second blade portions and a plurality of grooves to improve the cutting process quality of the cutter wheel.

The cutter wheel is generally made of high-hardness material and can be used for glass cutting, medical cutting instruments and panel cutting. For panel cutting, due to the need for high penetration and high destructive force for the cutting process, a large amount of glass is often produced after the cutting process. Dust increases the cleaning time after the cutting process. A large amount of glass dust is not only easy to endanger the health of the workers, but also raises environmental concerns.

In the patent of Taiwan Patent Application No. TW100134297, as shown in Fig. 1, which is a cross-sectional view of a cutting portion of a conventional cutter wheel, the cutting portion 1 has a first blade portion 11, and the first blade portion 11 is formed by a first blade surface. 11a and a second blade surface 11b are formed. The first blade surface 11a and the second blade surface 11b are symmetric with respect to each other, and have a third blade surface 12a formed by the first blade surface 11a, and a fourth blade surface 12b. The third blade surface 11b is formed to be continuous, and the inclination angles of the third blade surface 12a and the fourth blade surface 12b are symmetrical. According to the structural design, the brittle material can be cut by the first blade surface 11a and the second blade surface 11b. The third blade surface 12a and the fourth blade surface 12b cut the resin material, and have sufficient penetration and destructive force to cut the glass panel, but do not make structurally large amount of glass dust generated during cutting. Designed to remove glass dust.

In the patent of Taiwan Patent Application No. TW97106802, as shown in FIG. 2, it is a cross-sectional view of another conventional cutter wheel, comprising: a body portion 21 and a cutting portion 22, the body portion 21 having a knife hole 211, The cutting portion 22 has a first blade portion 221, and the first blade portion 221 is formed by a first blade surface 221a and a second blade surface 221b, and the first blade surface 221a and the second blade surface 221b have different inclination angles. This structure, although it is possible to improve cracks generated during cutting, a large amount of glass dust generated at the time of cutting cannot be effectively excluded by this structure.

In the patent of Taiwan Patent Application No. TW104107726, as shown in FIG. 3, which is a schematic view of a cutting portion of a conventional cutter wheel, the cutting portion 3 has a first blade portion 31, and the first blade portion 31 is formed by a first blade. The surface 31a and the second blade surface 31b are formed. The first blade surface 31a and the second blade surface 31b form a cutting angle θ1 and have two second blade portions 32 respectively formed by a third blade surface 32a and a first blade surface. The intersection of 31a and the intersection of a fourth blade surface 32b and the third blade surface 31b are formed, the third blade surface 32a and the fourth blade surface 32b form a cutting angle θ 2 , and the first blade portion 31 has a plurality of grooves 33, with the design of the first blade portion 31 and the plurality of grooves 33, the cutter wheel is not easy to slide relative to the cutting object during the cutting process, but the groove 33 has no cutting direction and cannot effectively exclude the occurrence of the cutting. A lot of glass dust.

In the patent of Japanese Patent Application No. JP2006104029, as shown in FIGS. 4A and 4B, which are respectively a schematic view of a side structure of a conventional cutter wheel and a schematic cross-sectional view taken along line AA of FIG. 4A, the cutter wheel includes a body portion 41 and a cutting portion. The portion 42 has a cutter hole 411. The cutting portion 42 includes a plurality of first blade portions 421 and a plurality of second blade portions 422. The plurality of first blade portions 421 and the plurality of second blade portions 422 are located on the same ridge line and alternately changed. Each of the first blade portions 421 is formed by a first blade surface 421a and a second blade surface 421b, and has a cutting angle θ 3 , and each of the second blade portions 422 is formed by a third blade surface 422 a and a fourth portion The blade surface 422b is formed and has a cutting angle θ 4 by alternately changing the cutting angle θ 3 of the first blade portion 421 and The cutting angle θ 4 of the second blade portion 422 can generate sufficient penetration and destructive force to cut the glass panel, but a large amount of glass dust generated during cutting cannot be effectively eliminated.

In the above prior art, there is no corresponding structural design to improve the chip removal effect for the large amount of glass dust generated when the cutter wheel cuts the panel. Therefore, the inventor conceived a double-blade cutting cutter wheel based on the spirit of active invention. The use of a plurality of grooves with cutting directivity enables the cutting wheel to enhance the chip removal effect, effectively reducing the accumulation and sticking of the glass dust on the panel, and improving the structural design of the plurality of first blade portions and the plurality of second blade portions. The sharpness of the cutter wheel improves the cutting processing quality of the cutter wheel, and the research is completed until several times.

The main object of the present invention is to solve the above problems, and to provide a double-blade cutting cutter wheel, which aims to improve the cutting processing quality of the cutter wheel.

In order to achieve the above object, the double-blade cutting cutter wheel of the present invention comprises: a circular body portion and a cutting portion, the cutting portion being formed along a periphery of the circular body portion, including a plurality of first blade portions and a plurality of second portions The blade portion and the plurality of grooves, the plurality of second blade portions are respectively formed in the plurality of grooves, and each of the first blade portions is formed by the intersection of a first blade surface and a second blade surface, each second blade The portion may be formed by the intersection of a third blade surface and a fourth blade surface.

The angle between the first blade surface and the second blade surface may be between 90 degrees and 130 degrees, and the angle between the third blade surface and the fourth blade surface may be between 80 degrees and 120 degrees, thereby The sharpness of the cutter wheel.

The angle between the third blade surface and the fourth blade surface may be 85% to 95% of the angle between the first blade surface and the second blade surface, thereby improving the sharpness of the cutter wheel.

The plurality of first blade portions may form a ridge line and form a ridge line surface, and the third blade surface extends toward the axial direction of the circular body portion to form a first plane, and the fourth blade surface extends toward the axis direction of the circular body portion. The second plane is formed, and the angle between the ridge line and the first plane may be 90 degrees, and the angle between the ridge line and the second plane may be 90 degrees, thereby improving the chip removing effect of the cutter wheel.

The plurality of first blade portions may form a ridge line and form a ridge line surface, and the third blade surface extends toward the axial direction of the circular body portion to form a first plane, and the fourth blade surface extends toward the axis direction of the circular body portion. Forming a second plane, the angle between the ridge line and the first plane may be between 10 degrees and 85 degrees, preferably between 80 degrees and 85 degrees, and the angle between the ridge line and the second plane may be Between 10 degrees and 85 degrees, preferably between 80 degrees and 85 degrees, thereby improving the chip removal effect of the cutter wheel.

The first blade surface and the second blade surface may have the same slope, or the first blade surface and the second blade surface may have different slopes, and are adjusted according to the required cutting quality.

The center of the circular body portion may have a shaft hole.

The third blade surface and the fourth blade surface may be formed by a mechanical grinding or laser cutting method.

The above summary and the following detailed description are intended to be illustrative of the scope of the invention, and the scope of the invention Explain it.

1‧‧‧ Cutting Department

11‧‧‧ first blade

11a‧‧‧First face

11b‧‧‧second blade

12a‧‧‧3rd face

12b‧‧‧fourth face

21‧‧‧ Body Department

211‧‧‧Axis hole

22‧‧‧ Cutting Department

221‧‧‧ first blade

221a‧‧‧ first blade

221b‧‧‧second blade

3‧‧‧ Cutting Department

31‧‧‧ first blade

31a‧‧‧First face

31b‧‧‧second blade

32‧‧‧second blade

32a‧‧‧ third face

32b‧‧‧fourth face

33‧‧‧ trench

41‧‧‧ Body Department

411‧‧‧Axis hole

42‧‧‧ Cutting Department

421‧‧‧ first blade

421a‧‧‧ first blade

421b‧‧‧second blade

422‧‧‧second blade

422a‧‧‧ third face

422b‧‧‧fourth face

5,6,7‧‧‧Double-blade cutting wheel

51,61,71‧‧‧Circular body

511,611,711‧‧‧Axis hole

52,62,72‧‧‧cutting department

521,621,721‧‧‧first blade

521a, 621a, 721a‧‧‧ first blade

521b, 621b, 721b‧‧‧ second face

522,622,722‧‧‧second blade

522a, 622a, 722a‧‧‧ third blade

522b, 622b, 722b‧‧‧ fourth face

523,623,723‧‧‧ trench

A1~A3‧‧‧ angle angle

C1, C2‧‧‧ ridge line

D1~D4‧‧‧ angle angle

S1, S3‧‧‧ first plane

S2, S4‧‧‧ second plane

θ 1~θ 4‧‧‧ cutting angle

Figure 1 is a cross-sectional view of a cutting portion of a conventional cutter wheel.

Figure 2 is a cross-sectional view of another conventional cutter wheel.

Figure 3 is a schematic view of a cutting portion of another conventional cutter wheel.

4A is a schematic view showing the side structure of a conventional cutter wheel.

Figure 4B is a schematic cross-sectional view taken along line A-A of Figure 4A.

Fig. 5 is a perspective view showing the first embodiment of the double-blade cutting wheel of the present invention.

Figure 6 is a front elevational view of the first embodiment of the double-blade cutting wheel of the present invention.

Figure 7 is a schematic cross-sectional view taken along line B-B of Figure 6.

Figure 8 is a perspective view showing the second embodiment of the double-blade cutting wheel of the present invention.

Figure 9 is a front elevational view of a second embodiment of the double-blade cutting wheel of the present invention.

Figure 10 is a schematic cross-sectional view taken along line C-C of Figure 9.

Figure 11 is a perspective view showing the third embodiment of the double-blade cutting wheel of the present invention.

Figure 12 is a front elevational view of a third embodiment of the double-blade cutting wheel of the present invention.

5 to 7, which are respectively a perspective view of a first embodiment of the double-blade cutting wheel of the present invention, a front view, and a cross-sectional view taken along line B-B of FIG. 6.

In the first embodiment of the present invention, the double-blade cutting cutter wheel 5 includes a circular body portion 51 and a cutting portion 52. The center of the circular body portion 51 has a cutter hole 511, and the cutting portion 52 is formed along the outer circumference of the circular body portion 51, and includes a plurality of first blade portions 521, a plurality of second blade portions 522, and a plurality of grooves 523, plural The second blade portions 522 are respectively formed in the plurality of grooves 523. Each of the first blade portions 521 is formed by the intersection of a first blade surface 521a and a second blade surface 521b, and each of the second blade portions 522 is formed by a first edge portion 522. The intersection of the three-blade surface 522a and the fourth blade surface 522b is formed.

The angle of the angle D1 between the first blade surface 521a and the second blade surface 521b is between 90 degrees and 130 degrees, and the angle D2 between the third blade surface 522a and the fourth blade surface 522b is between 80 degrees and 120 degrees. The angle D1 between the third blade surface 522a and the fourth blade surface 522b is 85% to 95% of the angle D2 between the first blade surface 521a and the second blade surface 521b.

That is, the angle of angle D1 between the first blade surface 521a and the second blade surface 521b is greater than the angle angle D2 between the third blade surface 522a and the fourth blade surface 522b, and preferably the first blade surface 521a and the second blade surface. The angle difference between the angle of angle D1 of 521b and the angle of angle D2 between the third blade surface 522a and the fourth blade surface 522b is 10 degrees. For a thinner panel material, the second blade portion 522 of a smaller angle can be used for cutting, for example, The angle of angle D2 is 80 degrees. For thicker panel materials, the second blade portion 522 of a larger angle can be used for cutting, for example, the angle of angle D2 is 120 degrees.

With this design, the second blade portion 522 formed by the third blade surface 522a and the fourth blade surface 522b can improve the sharpness of the double-blade cutting wheel 5 during cutting, and the third blade surface 522a and the fourth blade surface 522b is obtained by cutting one side of the first blade portion 521 by mechanical grinding or laser cutting, and simultaneously forming a groove 523.

Next, the arrangement of the grooves 523 will be described. The plurality of first blade portions 521 form a ridge line and form a ridge line surface C1, and the third blade surface 522a extends toward the axial direction of the circular body portion 51 to form a first plane. S1, the fourth blade surface 522b extends toward the axial direction of the circular body portion 51 to form a second plane S2. The angle A1 between the ridge plane C1 and the first plane S1 is 90 degrees, and the ridge plane C1 and the second plane S2 The angle of the angle A1 is 90 degrees, that is, the first plane S1 and the second plane S2 are parallel, and the groove 523 improves the chip removal effect of the double-blade cutting wheel 5, reduces the adhesion of the glass dust, and further cuts The cleaning time after processing is reduced.

8 to FIG. 10 are respectively a perspective view of a second embodiment of the double-blade cutting wheel of the present invention, a front view, and a cross-sectional view taken along line C-C of FIG. 9.

In the second embodiment of the present invention, the double-blade cutting cutter wheel 6 includes a circular body portion 61 and a cutting portion 62. The center of the circular body portion 61 has a arbor hole 611. The cutting portion 62 is formed along the outer circumference of the circular body portion 61, and includes a plurality of first blade portions 621, a plurality of second blade portions 622, and a plurality of grooves 623. The second blade portions 622 are respectively formed in the plurality of grooves 623. Each of the first blade portions 621 is formed by the intersection of a first blade surface 621a and a second blade surface 621b, and each of the second blade portions 622 is formed by a first edge portion 621. The intersection of the three-blade surface 622a and the fourth blade surface 622b is formed.

The angle of the angle D3 between the first blade surface 621a and the second blade surface 621b is between 90 degrees and 130 degrees, and the angle D4 between the third blade surface 622a and the fourth blade surface 622b is between 80 degrees and 120 degrees. The angle D3 between the third blade surface 622a and the fourth blade surface 622b is 85% to 95% of the angle D4 between the first blade surface 621a and the second blade surface 621b.

That is, the angle of angle D3 between the first blade surface 621a and the second blade surface 621b is greater than the angle angle D4 between the third blade surface 622a and the fourth blade surface 622b, and preferably the first blade surface 621a and the second blade surface. The angle difference between the angle D3 of the 621b and the angle D4 between the third blade surface 622a and the fourth blade surface 622b is 10 degrees. For a thinner panel material, the second blade portion 622 of a smaller angle can be used for cutting, for example, The angle of angle D4 is 80 degrees. For thicker panel materials, the second blade portion 622 of a larger angle can be used for cutting, for example, the angle of angle D4 is 120 degrees.

With this design, the second blade portion 622 formed by the third blade surface 622a and the fourth blade surface 622b can improve the sharpness of the double-blade cutting wheel 6 during cutting, and the third blade surface 622a and the fourth blade surface The 622b is obtained by cutting one side of the first blade portion 621 by mechanical grinding or laser cutting, and simultaneously forms a groove 623.

The second embodiment is different from the first embodiment in that the groove 623 is arranged differently from the groove 523. In detail, in the second embodiment, the plurality of first blade portions 621 form a ridge line and constitute a ridge line. C2, the third blade surface 622a extends toward the axial direction of the circular body portion 61 to form a first plane S3, and the fourth blade surface 622b extends toward the axial direction of the circular body portion 61 to form a second plane S4, the ridge surface The angle A2 between C2 and the first plane S3 is between 10 degrees and 85 degrees, preferably between 80 degrees and 85 degrees, and the angle A3 between the ridge plane C2 and the second plane S4 is between 10 degrees and Between 85 degrees, preferably between 80 degrees and 85 degrees.

That is to say, the groove 623 of the second embodiment has a V-shaped structure, and thus has a cutting directivity, and the angle of the V-shaped angle can adjust the angle A2 between the ridge line surface C2 and the first plane S3 according to actual needs. The angle A3 between the ridge line surface C2 and the second plane S4 achieves the effect of enhancing dust evacuation.

11 and FIG. 12 are respectively a perspective structural view and a front view of a third embodiment of the double-blade cutting cutter wheel of the present invention.

In the third embodiment of the present invention, the double-blade cutting cutter wheel 7 includes a circular body portion 71 and a cutting portion 72. The center of the circular body portion 71 has a cutter hole 711. The cutting portion 72 is formed along the outer circumference of the circular body portion 71, and includes a plurality of first blade portions 721, a plurality of second blade portions 722, and a plurality of grooves 723. The second blade portions 722 are respectively formed in the plurality of grooves 723, and each of the first blade portions 721 is formed by the intersection of a first blade surface 721a and a second blade surface 721b, and each of the second blade portions 722 is formed by a first The intersection of the three-blade surface 722a and the fourth blade surface 722b is formed.

The third embodiment is different from the first embodiment in that the first blade face 521a and the second blade face 521b of the first embodiment have the same slope, and the first blade face 721a and the second blade of the third embodiment The face 721b has a different slope, that is, the first blade face 521a and the second blade of the first embodiment The face 521b has a symmetrical structure, and the first blade face 721a and the second blade face 721b of the third embodiment have an asymmetrical structure.

It can be seen from the above that the double-blade cutting wheel of the present invention utilizes the structural design of the first blade portions 521, 621, 721 and the second blade portions 522, 622, 722 to enhance the cutting sharpness, enhance the chip removal effect by the grooves 523, 623, 723, and use the third blade surface. The angles A2 and A3 formed by the 622a and the fourth blade surface 622b and the ridge surface C2 respectively provide the cutting direction of the groove 623 of the cutter wheel, thereby improving the cutting quality of the cutter wheel.

The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

6‧‧‧Double-blade cutting wheel

621‧‧‧ first blade

621a‧‧‧ first blade

621b‧‧‧second blade

622‧‧‧second blade

622a‧‧‧ third blade

622b‧‧‧fourth face

623‧‧‧ trench

A2, A3‧‧‧ angle angle

C2‧‧‧ ridge line

S3‧‧‧ first plane

S4‧‧‧ second plane

Claims (8)

A double-blade cutting cutter wheel includes: a circular body portion; and a cutting portion formed along a periphery of the circular body portion, including a plurality of first blade portions, a plurality of second blade portions, and a plurality of grooves a groove, the plurality of second blade portions are respectively formed in the plurality of grooves, and each of the first blade portions is formed by an intersection of a first blade surface and a second blade surface, each of the second blades The portion is formed by the intersection of a third blade surface and a fourth blade surface, the plurality of first blade portions forming a ridge line and forming a ridge line surface, the third blade surface facing the axis direction of the circular body portion Extending to form a first plane, the fourth blade surface extending toward the axial direction of the circular body portion to form a second plane, the angle between the ridge plane and the first plane being between 10 degrees and 85 degrees Preferably, it is between 80 degrees and 85 degrees, and the angle between the ridge surface and the second plane is between 10 degrees and 85 degrees, preferably between 80 degrees and 85 degrees. The double-blade cutting wheel according to claim 1, wherein the angle between the first blade surface and the second blade surface is between 90 degrees and 130 degrees. The double-blade cutting wheel according to the first aspect of the invention, wherein the angle between the third blade surface and the fourth blade surface is between 80 degrees and 120 degrees. The double-blade cutting wheel according to the first aspect of the invention, wherein the angle between the third blade surface and the fourth blade surface is 85 of an angle between the first blade surface and the second blade surface. %~95%. The double-blade cutting wheel according to claim 1, wherein the first blade surface and the second blade surface have the same slope. The double-blade cutting cutter wheel according to claim 1, wherein the first blade face and the second blade face have different slopes. The double-blade cutting cutter wheel according to the first aspect of the invention, wherein the center of the circular body portion has a cutter shaft hole. The double-blade cutting wheel according to claim 1, wherein the third blade surface and the fourth blade surface are formed by a mechanical grinding or laser cutting method.