Circular saw blade

Abstract

The utility model discloses a circular saw blade which comprises a saw blade body. The saw teeth are uniformly distributed in the outer circumferential direction of the saw blade body; wherein each saw tooth comprises a tooth back face, a tooth top face and a cutting face, the tooth back faces, the tooth top faces and the cutting faces are sequentially connected, the range of the included angle between each tooth back face and the corresponding tooth top face is 100-150 degrees, and the range of the included angle between each tooth top face and the corresponding cutting face is 10-70 degrees. And the cutting efficiency and the cutting quality are improved through an acute angle formed between the tooth top surface and the cutting surface.

Description

Technical Field

[0001] The utility model relates to the technical field of circular saw blades, in particular to a circular saw blade. Background Art

[0002] A circular saw blade is a general term for a circular sheet-shaped cutting tool used for cutting solid materials. A circular saw blade is a common cutting tool and is widely used in the fields of wood processing, metal processing, and plastic processing. It is made of a circular steel plate, and multiple cutting teeth are installed on the surface for cutting a workpiece along a predetermined cutting line into a required shape or size. For example, a low-noise circular saw blade disclosed in the publication number CN219292905U has a flat tooth surface of the saw teeth, which will affect the cutting efficiency and cutting quality. Based on this, a circular saw blade is designed. Summary of the Utility Model

[0003] In order to overcome at least one of the above-mentioned defects in the prior art, the utility model provides a circular saw blade. By providing an acute angle between the tooth top surface and the cutting surface, the cutting efficiency and cutting quality are improved.

[0004] The technical solution adopted by the utility model to solve its problems is as follows:

[0005] A circular saw blade includes: a saw blade body; saw teeth, which are evenly distributed along the outer circumference of the saw blade body; wherein, the saw teeth include a tooth back surface, a tooth top surface, and a cutting surface, and the tooth back surface, the tooth top surface, and the cutting surface are connected in sequence. The included angle between the tooth back surface and the tooth top surface ranges from 100° to 150°, and the included angle between the tooth top surface and the cutting surface ranges from 10° to 70°.

[0006] By adopting the above solution, by providing an acute angle between the tooth top surface and the cutting surface, the cutting efficiency and cutting quality are improved.

[0007] Further, a saw groove is formed by the tooth back surface of the saw tooth and the cutting surface of the adjacent saw tooth extending towards the saw blade body.

[0008] By adopting the above solution, a channel is provided between adjacent saw grooves, so that debris can be discharged smoothly.

[0009] Further, the end of the saw groove has an arc chamfer.

[0010] By adopting the above solution, the arc chamfer facilitates the discharge of debris and avoids debris accumulation.

[0011] Further, an expansion groove is arranged along the central direction of the saw blade body in the saw groove. The expansion groove includes a long strip area and an arc area, and the long strip area and the arc area are integrally formed.

[0012] By adopting the above solution, the expansion tank can provide an additional heat dissipation surface, which helps to conduct heat from the saw blade body to the air, effectively reducing the temperature of the saw blade body and extending the service life of the saw blade body.

[0013] Furthermore, the saw blade body and the saw teeth are made of tungsten steel.

[0014] By adopting the above solution, tungsten steel has extremely high hardness, can maintain the cutting efficiency and quality for a long time, has good corrosion resistance, can cope with humid and corrosive environments, and has good thermal conductivity, which can dissipate the heat generated during cutting.

[0015] Furthermore, a titanium nitride coating is provided on the outer surfaces of the saw blade body and the saw teeth.

[0016] By adopting the above solution, setting the titanium nitride coating ensures that the saw teeth have sufficient strength to improve wear resistance.

[0017] Furthermore, an installation through-hole is provided at the center of the saw blade body.

[0018] By adopting the above solution, the installation through-hole facilitates the installation of the saw blade body.

[0019] Furthermore, a metal heat dissipation layer is provided on the outer surfaces of the long strip area and the arc area.

[0020] By adopting the above solution, setting the metal heat dissipation layer increases heat dissipation, speeds up the conduction and dissipation of heat, reduces the temperature of the saw blade, and thus improves the wear resistance and stability of the saw blade. Description of the Drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0022] Figure 2 is a planar structural schematic diagram of an embodiment of the present invention;

[0023] Among them, the meanings of the reference numerals are as follows: 1, saw blade body; 2, saw teeth; 21, tooth back surface; 22, tooth top surface; 23, cutting surface; 3, saw slot; 31, arc chamfer; 4, expansion tank; 41, long strip area; 42, arc area; 5, installation through-hole. Detailed Embodiments

[0024] For better understanding and implementation, the following will, in conjunction with the drawings of the present utility model, clearly and completely describe and discuss the technical solutions in the embodiments of the present utility model. Obviously, what is described herein is only a part of the examples of the present utility model, not all of the examples. All other examples obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the protection scope of the present utility model.

[0025] For the convenience of understanding the embodiments of the present utility model, the following will, taking specific embodiments as examples and in conjunction with the drawings, further explain and illustrate, and each embodiment does not constitute a limitation to the embodiments of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0028] Refer to Figure 1 - Figure 2 , the present utility model discloses a circular saw blade: including a saw blade body 1 and saw teeth 2, the saw teeth 2 are evenly distributed along the outer circumference of the saw blade body 1. Among them, the saw teeth 2 include a tooth back surface 21, a tooth top surface 22 and a cutting surface 23, and the tooth back surface 21, the tooth top surface 22 and the cutting surface 23 are connected in sequence. The included angle range between the tooth back surface 21 and the tooth top surface 22 is 100° - 150°, and the included angle range between the tooth top surface 22 and the cutting surface 23 is 10° - 70°. By providing an acute angle between the tooth top surface 22 and the cutting surface 23, the cutting efficiency and cutting quality are improved.

[0029] In this embodiment, the tooth back surface 21 of the saw teeth 2 and the cutting surface 23 of the adjacent saw teeth 2 extend towards the saw blade body 1 to form a saw groove 3. A channel is provided between adjacent saw grooves 3, so that debris can be discharged smoothly. The end of the saw groove 3 has a circular arc chamfer 31, and the circular arc chamfer 31 facilitates the discharge of debris and avoids debris accumulation.

[0030] An expansion groove 4 is provided along the central direction of the saw blade body 1 in the saw groove 3. The expansion groove 4 includes a long strip area 41 and an arc area 42. The long strip area 41 and the arc area 42 are integrally formed. The expansion groove 4 can provide an additional heat dissipation surface, which helps to conduct heat from the saw blade body 1 to the air, effectively reducing the temperature of the saw blade body 1 and prolonging the service life of the saw blade body 1.

[0031] Among them, the saw blade body 1 and the saw teeth 2 are made of tungsten steel material. The tungsten steel material has extremely high hardness, can maintain the cutting efficiency and quality for a long time, has good corrosion resistance, can cope with humid and corrosive environments, and has good thermal conductivity, which can dissipate the heat generated during cutting. A titanium nitride coating is provided on the outer surfaces of the saw blade body 1 and the saw teeth 2. By setting the titanium nitride coating, the saw teeth 2 are ensured to have sufficient strength to improve wear resistance. An installation through hole 5 is provided at the center of the saw blade body 1. Through the installation through hole 5, it is convenient to install the saw blade body 1. A metal heat dissipation layer is provided on the outer surfaces of the long strip area 41 and the arc area 42. By setting the metal heat dissipation layer, heat dissipation is increased, the conduction and dissipation of heat are accelerated, the temperature of the saw blade is reduced, and thus the wear resistance and stability of the saw blade are improved.

[0032] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A circular saw blade, characterized in that, Comprising: Saw blade body; Saw teeth, which are evenly distributed along the outer circumference of the saw blade body; Wherein, the saw teeth include a tooth back surface, a tooth top surface and a cutting surface, and the tooth back surface, the tooth top surface and the cutting surface are connected in sequence. The included angle between the tooth back surface and the tooth top surface ranges from 100° to 150°, and the included angle between the tooth top surface and the cutting surface ranges from 10° to 70°.

2. A circular saw blade according to claim 1, characterized in that, The tooth back surface of the saw teeth and the cutting surface of the adjacent saw teeth extend towards the saw blade body to form a saw groove.

3. A circular saw blade according to claim 2, wherein, The end of the saw groove has an arc chamfer.

4. A circular saw blade according to claim 3, characterized in that, An expansion groove is arranged along the central direction of the saw blade body in the saw groove. The expansion groove includes a long strip area and an arc area, and the long strip area and the arc area are integrally formed.

5. A circular saw blade according to claim 4, characterized in that, The saw blade body and the saw teeth are made of tungsten steel material.

6. A circular saw blade according to claim 5, characterized in that, A titanium nitride coating is provided on the outer surfaces of the saw blade body and the saw teeth.

7. A circular saw blade according to claim 6, wherein, An installation through hole is opened at the center of the saw blade body.

8. A circular saw blade according to claim 7, characterized in that, A metal heat dissipation layer is provided on the outer surfaces of the long strip area and the arc area.

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