Hard alloy circular saw blade tool bit structure convenient to install and capable of being repeatedly used

Abstract

The hard alloy circular saw blade tool bit structure convenient to install and capable of being repeatedly used comprises a saw blade body, tooth-shaped protrusions are evenly distributed on the outer edge of the saw blade body, two positioning grooves are formed in the two sides of the upper portion of each tooth-shaped protrusion, and a partition wall is arranged between the two positioning grooves. A baffle is fixed to the outer side of the partition wall and used for pressing and limiting the two tool bits in the two positioning grooves respectively, the thicknesses of the two tool bits on each tooth-shaped protrusion are different, and two or more identical cutting edges are evenly distributed on each tool bit. When one cutting edge on the tool bit is abraded, the cutting edge can be detached for replacement, so that corner replacement use is achieved, the utilization rate of the tool bit is improved, the service life is prolonged, the two tool bits can be synchronously fixed and limited through the baffle, detachment and installation are convenient, consistency after installation can be guaranteed, and the cutting effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of saw blades, and in particular to a hard alloy circular saw blade head structure which is easy to install and can be reused. Background Art

[0002] Saw blades are a general term for thin circular tools used to cut solid materials. According to different applications, saw blades can be divided into: milling saw blades, machine saw blades, manual saw blades, metal-specific saw blades (aluminum saw blades, copper saw blades, stainless steel saw blades, etc.), pipe cutting circular saw blades, wood saw blades, stone saw blades, acrylic saw blades, etc. According to different material classifications, they can be divided into: high-speed steel saw blades (HSS saw blades), welded alloy saw blades, toothed alloy saw blades, diamond saw blades, etc.

[0003] Among them, carbide circular saw blades can still play their excellent performance in harsh working conditions with their advantages of high speed, good cutting quality and precision, and high production efficiency. However, the shortcomings in the performance of carbide saw blades have greatly restricted the performance of higher efficiency and customer cost requirements. The specific defects are as follows: First, the influence of high-temperature welding. The alloy blade block and the saw blade body are welded under high temperature. Repeated heating will cause decarburization in the heating area of ​​the blade body itself, and the structure will change, which is easy to cause crack defects during use. Second, repeated high-temperature heating will have an adverse effect on the rigidity, hardness, strength and stress of the blade body. Third, the solid-welded alloy blade block can only complete cutting with one cutting edge, and it cannot be used again after being damaged, which greatly increases the use cost of the alloy. Fourth, due to the influence of heat, the mechanical properties and cutting performance of the alloy blade block coating will be seriously reduced during high-temperature welding of the carbide blade block coated with CVD and PVD, and it cannot be widely used.

[0004] In order to solve the above problems, the applicant has developed a reusable carbide circular saw blade with patent number CN202110359339.0, which can reduce the use cost of alloy cutter heads, improve production efficiency, improve cutting performance, and bring about economic benefits. It includes a saw blade body and a cutter head, and tooth-shaped protrusions are evenly arranged on the outer edge of the saw blade body. Two cutter head seats for placing the cutter heads are arranged on both sides of the upper part of each tooth-shaped protrusion. There is a partition wall between the two cutter head seats on each tooth-shaped protrusion. The partition wall and the cutter heads on both sides are fixed together by screws. The two cutter heads on each tooth-shaped protrusion have different thicknesses, and the cutter heads are evenly arranged with two or more identical cutting edges.

[0005] However, the above-mentioned saw blade head requires the two heads to be fixed separately, which is not only troublesome to disassemble and assemble, but also difficult to ensure that the cutting edges of the two heads are located in the same straight line. Therefore, there is an urgent need for a carbide circular saw blade head structure that is easy to install and reusable to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a carbide circular saw blade head structure which is easy to install and reusable, so as to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides a carbide circular saw blade head structure that is easy to install and reusable, comprising a saw blade body, wherein the outer edge of the saw blade body is evenly distributed with tooth-like protrusions, two positioning grooves are arranged on both sides of the upper part of the tooth-like protrusions, a partition wall is arranged between the two positioning grooves, a baffle is fixed on the outer side of the partition wall for respectively pressing the two heads to be limited in the two positioning grooves, the two heads on each tooth-like protrusion have different thicknesses, and the heads are evenly distributed with two or more identical cutting edges.

[0009] Preferably, the partition wall is connected to the baffle by screws.

[0010] Preferably, the partition walls are offset from the center of the saw blade body and are staggered.

[0011] Preferably, a slope is provided on the top of the baffle.

[0012] Preferably, the distribution positions of the thin blade heads and the thick blade heads on the adjacent tooth-shaped protrusions are in opposite order, and the distribution positions of the partition walls, the thin blade heads and the thick blade heads on the tooth-shaped protrusions are in the same order every other tooth and are arranged alternately.

[0013] Preferably, the thickness of the thick cutter head is greater than 1 / 2 of the thickness of the saw blade body.

[0014] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0015] The present invention provides a carbide circular saw blade segment structure that is easy to install and reusable, including a saw blade body, the outer edge of the saw blade body is evenly distributed with tooth-like protrusions, two positioning grooves are provided on both sides of the upper part of the tooth-like protrusions, a partition wall is provided between the two positioning grooves, and a baffle is fixed on the outer side of the partition wall for respectively pressing the two segments to be limited in the two positioning grooves, the two segments on each of the tooth-like protrusions have different thicknesses, and the segments are evenly distributed with more than two identical cutting edges; when one of the cutting edges on the segment head is worn, it can be removed and replaced, so that it can be replaced at the corner, thereby improving the utilization rate of the segment head and extending its service life; the two segments can be synchronously fixed and limited by the baffle, which is not only convenient for disassembly and assembly, but also can ensure consistency after installation, thereby ensuring the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of a carbide circular saw blade head that is easy to install and reusable provided by the present invention;

[0018] Figure 2 A saw blade adopting a carbide circular saw blade head structure that is easy to install and reusable provided by the present invention;

[0019] Figure 3 A schematic diagram of the structure of another carbide circular saw blade head that is easy to install and reusable;

[0020] In the figure: 1: saw blade body, 2: tooth-like protrusion, 3: positioning groove, 4: partition wall, 5: baffle, 6: cutter head, 7: inclined surface. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The purpose of the present invention is to provide a carbide circular saw blade head structure which is easy to install and can be reused, so as to solve the problems existing in the prior art.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Embodiment 1:

[0025] This embodiment provides a carbide circular saw blade head structure that is easy to install and reusable, such as Figure 1 and 2 As shown, it includes a saw blade body 1, the outer edge of the saw blade body 1 is evenly distributed with tooth-like protrusions 2, two positioning grooves 3 are provided on both sides of the upper part of the tooth-like protrusions 2, a partition wall 4 is provided between the two positioning grooves 3, and a baffle 5 is fixed on the outer side of the partition wall 4 for pressing two cutter heads 6 to be respectively limited in the two positioning grooves 3, the two cutter heads 6 on each tooth-like protrusion 2 have different thicknesses, and the cutter heads 6 are evenly distributed with two or more identical cutting edges.

[0026] As an implementation mode, the partition wall 4 is connected to the baffle plate 5 by screws. It should be understood that the partition wall 4 has a threaded hole and the baffle plate 5 has a through hole. In order to hide the screw head, the through hole can be a countersunk hole.

[0027] As an implementation mode, the partition wall 4 is offset from the center of the saw blade body 1 and is staggered, so that the cutter head 6 on two adjacent tooth-like protrusions 2 forms a complete cutting mechanism, making the wear of the cutter head 6 more uniform.

[0028] As an implementation mode, a slope 7 is provided on the top of the baffle 5 to enable the cutting chips to slide down smoothly and avoid accumulation.

[0029] As an embodiment, the distribution position order of the thin cutter heads and the thick cutter heads on adjacent toothed protrusions 2 is opposite, and the distribution position order of the partition walls 4, the thin cutter heads and the thick cutter heads on the toothed protrusions 2 is the same every other tooth and arranged alternately, thereby ensuring uniform wear during the cutting process.

[0030] As an implementation manner, the thickness of the thick blade head is greater than 1 / 2 of the thickness of the saw blade body 1 .

[0031] Embodiment 2:

[0032] This embodiment provides a hexagonal cutter head structure, such as Figure 3 shown.

[0033] It should be understood that the cutter head can be a two-cornered, three-cornered, four-cornered, five-cornered, hexagonal or other multi-angular structure, and can be selected according to needs when used.

[0034] The present invention provides a carbide circular saw blade head structure which is easy to install and reusable. When a cutting edge on the head is worn, it can be removed and replaced for use, thereby improving the utilization rate of the head and extending the service life. The two heads can be synchronously fixed and limited by the baffle plate, which is not only convenient for disassembly and assembly, but also can ensure consistency after installation, thereby ensuring the cutting effect.

[0035] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A carbide circular saw blade head structure that is easy to install and reusable, comprising a saw blade body (1), wherein the outer edge of the saw blade body (1) is uniformly provided with tooth-shaped protrusions (2), and characterized in that: Two positioning grooves (3) are provided on both sides of the upper part of the tooth-shaped protrusion (2); a partition wall (4) is provided between the two positioning grooves (3); a baffle (5) is fixed on the outer side of the partition wall (4) for respectively pressing the two cutter heads (6) to be located in the two positioning grooves (3); the two cutter heads (6) on each tooth-shaped protrusion (2) have different thicknesses; and the cutter heads (6) are evenly distributed with two or more identical cutting edges.

2. The easy-to-install and reusable carbide circular saw blade segment structure according to claim 1, characterized in that: The partition wall (4) and the baffle plate (5) are connected via screws.

3. The easy-to-install and reusable carbide circular saw blade segment structure according to claim 1, characterized in that: The partition walls (4) are offset from the center of the saw blade body (1) and are arranged in a staggered manner.

4. The easy-to-install and reusable carbide circular saw blade segment structure according to claim 1, characterized in that: The top of the baffle (5) is provided with an inclined surface (7).

5. The easy-to-install and reusable carbide circular saw blade segment structure according to claim 1, characterized in that: The distribution positions of the thin blade heads and the thick blade heads on the adjacent tooth-shaped protrusions (2) are in opposite order, and the distribution positions of the partition walls (4), the thin blade heads and the thick blade heads on the tooth-shaped protrusions (2) are in the same order and are arranged alternately.

6. The easy-to-install and reusable carbide circular saw blade segment structure according to claim 5, characterized in that: The thickness of the thick blade head is greater than 1 / 2 of the thickness of the saw blade body (1).

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