CN214640689U

CN214640689U - Circular saw blade

Info

Publication number: CN214640689U
Application number: CN202120838473.4U
Authority: CN
Inventors: 苏士伟; 赵建勋; 赵向前; 王成军; 刘世哲
Original assignee: Boshen Co ltd
Current assignee: Boshen Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-11-09
Anticipated expiration: 2031-04-22

Abstract

The utility model provides a circular saw blade belongs to cutting saw bit technical field, including disc base member and tool bit. The disc base body is provided with a mounting structure; the cutter heads are uniformly distributed on the periphery of the disc base body in a surrounding manner and are sintered on the disc base body; a key hole is arranged between the adjacent cutter heads, penetrates through the disc base body and extends to the disc base body along the radial direction of the disc base body; the cutter head is provided with at least one sawtooth opening and at least one turbine arc-shaped groove, and the turbine arc-shaped groove extends from the root of the sawtooth opening or the keyhole to one side of the disc matrix along the rotation direction of the cutter head. The utility model provides a circular saw blade is through setting up sawtooth opening and keyhole to reduce the cutting resistance among the cutting working process, promote the sharpness, through setting up the turbine arc wall, thereby make the piece of cutting drop fast, prevent that the piece from bonding to the cutter head on, raise the efficiency.

Description

Circular saw blade

Technical Field

The utility model belongs to the technical field of the cutting saw bit, more specifically say, relate to a circular saw blade.

Background

At present, the circular saw blade is widely applied to the fields of buildings, decoration and the like. In the prior art, when a dry cutting saw blade is used for sawing, the cutting speed is low generally, the efficiency is low, and due to the strong abrasive property of building materials and the low heat dissipation speed of the saw blade, the joint of a tool bit of the saw blade and a substrate is often seriously abraded, so that the saw blade finally fails or breaks, and the service life is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circular saw blade aims at solving current saw bit during operation sharp inadequately, and is inefficient, cuts the saw bit radiating rate futilely slowly, cuts the easy cracked technical problem of abrasive material.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a circular saw blade including:

the disc base body is provided with a mounting structure; and

the cutter heads are uniformly distributed on the periphery of the disc base body in a surrounding manner and are sintered on the disc base body; a key hole is arranged between the adjacent cutter heads, penetrates through the disc base body and extends to the disc base body along the radial direction of the disc base body; the cutter head is provided with at least one sawtooth opening and at least one turbine arc-shaped groove, and the turbine arc-shaped groove extends from the root of the sawtooth opening or the keyhole to one side of the disc matrix along the rotation direction of the cutter head.

Further, the turbine arc-shaped grooves are arranged on the two side surfaces of the cutter head in a staggered mode along the rotation direction of the cutter head.

Further, the cutter head is provided with guard teeth protruding towards the disc base body.

Further, the guard teeth are of a semicircular structure protruding towards the disc base body.

Furthermore, a circular hole structure is arranged at one end of the keyhole close to the center of the disc base body, and the radial size of the circular hole structure is larger than the width of the keyhole.

Furthermore, the mounting structure comprises a circular unthreaded hole arranged on the disc base body and a plurality of counter bores arranged on the disc base body, and the counter bores are uniformly distributed around the circular unthreaded hole.

Further, the cutting head is sintered on the disc base body.

The utility model provides a circular saw blade's beneficial effect lies in: compared with the prior art, the utility model discloses the circular saw blade is through setting up sawtooth opening and keyhole to reduce the cutting resistance among the cutting working process, promote the sharpness, through setting up the turbine arc wall, thereby make the piece of cutting drop fast, prevent that the piece from bonding to the tool bit on, raise the efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a circular saw blade according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of A-A in FIG. 1;

fig. 3 is an enlarged view at B in fig. 2.

In the figure: 10. a disc base; 11. a keyhole; 12. a circular light hole; 13. a counter bore; 20. a cutter head; 21. a sawtooth gap; 22. a turbine arc-shaped slot; 23. and (5) protecting the teeth.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3 together, the circular saw blade of the present invention will now be described. The circular saw blade comprises a disc base body 10 and a cutter head 20. The disc base 10 is provided with mounting structure to facilitate mounting with a power tool.

The plurality of cutting heads 20 are provided, each cutting head 20 is sintered on the outer periphery of the disc base body 10, and the plurality of cutting heads 20 are uniformly distributed around the outer periphery of the disc base body 10. The adjacent cutter heads 20 have a gap, namely a keyhole 11, the keyhole 11 has a buffer protection effect on the disk base body 10, the damage to the disk base body 10 in the cutting process is reduced, the disk base body 10 is prevented from being broken, and the keyhole 11 extends to the disk base body 10 along the radial direction of the disk base body 10.

The tool bit 20 is provided with at least one sawtooth notch 21 and at least one turbine arc-shaped groove 22, and the turbine arc-shaped groove 22 extends from the root of the sawtooth notch 21 to one side of the disc base body 10 along the rotation direction of the tool bit 20, or the turbine arc-shaped groove 22 extends from the keyhole 11 to one side of the disc base body 10 along the rotation direction of the tool bit 20. The turbine arc groove 22 is a groove structure provided on the tool head 20, which does not penetrate the tool head 20 in the depth direction, but does not penetrate the disc base body 10, that is, the disc base body 10 is exposed where the turbine arc groove 22 is provided on the tool head 20. The keyhole 11 is formed to extend through the cutter head 20 and the disc base 10 in depth. The serration gap 21 must necessarily extend through the cutting head 20 in the depth direction, but must of course also extend through the disc substrate 10, so that the cutting head 20 can only cut at the serration gap 21.

In this embodiment, a plurality of tool bits 20 evenly encircle the periphery at disc base member 10, be equipped with sawtooth opening 21 and a plurality of turbine arc wall 22 on tool bit 20, keyhole 11 has between each tool bit 20, the cutting edge of every tool bit 20 can be increased in the setting of sawtooth opening 21 and keyhole 11, improve cutting efficiency, and the cutting resistance in the circular saw piece course of work can be reduced to sawtooth opening 21 and the setting keyhole 11, promote the sharpness, turbine arc wall 22 can make the piece of cutting drop fast, prevent that the piece from bonding other positions on tool bit 20, influence tool bit 20's cutting speed.

The embodiment of the utility model provides a circular saw blade compares with prior art, through setting up sawtooth opening and keyhole to reduce the cutting resistance in the cutting course of work, promote the sharpness, through setting up the turbine arc wall, thereby make the piece of cutting drop fast, prevent that the piece from bonding to the tool bit on, raise the efficiency.

In some embodiments, referring to FIG. 1, each cutting head 20 has 3-5 serrated slits 21 to increase sharpness and reduce cutting resistance.

In some embodiments, referring to fig. 1, each cutting head 20 is actually integrally sintered, and each cutting head 20 is distributed on two sides of the disc base 10, and the turbine arc-shaped grooves 22 are arranged on two sides of the cutting head 20, and the turbine arc-shaped grooves 22 are alternately arranged on the front side and the back side along the rotation direction of the cutting head 20. The turbine arc-shaped grooves 22 on the two side surfaces are distributed in a staggered mode, so that the two side surfaces of the cutter head 20 are subjected to uniform lateral force integrally, uneven stress is avoided, and the falling speed of cutting chips is increased. In some embodiments, referring to FIG. 1, the arcuate slot 22 is a streamlined slot having a direction of streamlines that approximates the arc of flight of debris to better prevent the debris from sticking to the cutting head 20.

In some embodiments, referring to fig. 1, the cutter head 20 is provided with guard teeth 23 protruding toward the disc base 10. The guard teeth 23 protect the disc substrate 10 from excessive wear during cutting, which can cause the disc substrate 10 to fail.

In some embodiments, referring to fig. 1, the bit 20 is provided with a guard tooth 23, and the guard tooth 23 is located at a position between two adjacent keyhole 11 positions on the bit 20, and the position is found to be most susceptible to wear caused by collision of debris through investigation.

In some embodiments, referring to fig. 1, the guard teeth 23 are in the form of a semi-circular structure protruding toward the disc base 10, with the guard teeth 23 being located at the middle of two adjacent keyhole 11 on the cutter head 20.

In some embodiments, referring to fig. 1, the protective teeth 23 have a semicircular radius of three mm to six mm based on the protective teeth 23 having a semicircular structure.

In some embodiments, referring to FIG. 1, the keyhole 11 is provided with a circular hole structure at an end adjacent to the center of the disc substrate 10, and the radial dimension of the circular hole structure is larger than the width of the keyhole 11. In the cutting process, the round hole-shaped structure has a buffer protection effect on the disc base body 10, so that the damage to the disc base body 10 in the cutting process is reduced, and the disc base body 10 is prevented from being broken.

In some embodiments, referring to fig. 1, a circular saw blade according to an embodiment of the present invention includes a circular unthreaded hole 12 and a plurality of counter bores 13, the circular unthreaded hole 12 is disposed on a circular disk substrate 10, the plurality of counter bores 13 are disposed on the circular disk substrate 10, and the plurality of counter bores 13 are uniformly distributed around the circular unthreaded hole 12. The provision of the counter bore 13 around the disc base 10 allows the circular saw blade provided by embodiments of the present invention to be mounted on a mounting flange of some devices.

In some embodiments, referring to fig. 1, a circular saw blade according to an embodiment of the present invention has a cutting head 20 and a disc base 10 that are sintered together. The cutting tips 20 are discontinuously attached to the outer circumference of the disc base 10 by a segment type sintering process, and the discontinuous sintering causes each cutting tip 20 to form a keyhole 11 deep into the disc base 10, so that the existence of a cutting edge can be maintained until the cutting tip 20 is completely worn away, and the cutting sharpness is always maintained.

In some embodiments, referring to fig. 2 and 3, the circular saw blade provided by the embodiments of the present invention has a slot on the blade head 20, the slot is configured to follow the shape of the side of the blade head 20 close to the disc base 10, and in fact, the slot is also configured and adapted to follow the shape of the disc base 10, the disc base 10 is inserted into the slot and is connected with the blade head 20 by sintering, so as to enhance the connection between the blade head 20 and the disc base 10, and increase the service life of the saw blade.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A circular saw blade, comprising:

the disc base body is provided with a mounting structure; and

2. The circular saw blade as claimed in claim 1, wherein said turbine arc-shaped grooves are provided alternately on both side surfaces of said cutter head in a rotational direction of said cutter head.

3. The circular saw blade as claimed in claim 2, wherein said cutter head is provided with guard teeth projecting toward said disc base.

4. The circular saw blade as claimed in claim 1, wherein said cutter head is provided with guard teeth projecting toward said disc base.

5. The circular saw blade as claimed in claim 4, wherein said guard teeth are of a semi-circular configuration projecting toward said base of said circular disc.

6. A circular saw blade as claimed in any one of claims 1 to 5, wherein the end of said keyhole adjacent the centre of said base is provided with a circular aperture formation having a radial dimension greater than the width of said keyhole.

7. The circular saw blade as claimed in any one of claims 1 to 5, wherein said mounting structure includes a circular aperture provided in said disc base and a plurality of counter bores provided in said disc base, each of said counter bores being disposed evenly around said circular aperture.