Novel crown tool bit diamond circular saw blade

Abstract

The novel crown tool bit diamond circular saw blade comprises a circular saw blade base body, a circular center hole is formed in the center of the saw blade base body, a plurality of through water gaps are evenly formed in the inner edge of the saw blade base body in the circumferential direction, and openings of the water gaps are formed to the outer edge of the saw blade base body in the radial direction. A plurality of crown segment type tool bit units are fixedly arranged on the outer edge of the saw blade base body in the circumferential direction, and each crown segment type tool bit unit comprises a first tool bit, a second tool bit and a third tool bit which are integrally arranged and sequentially arranged. Crown-shaped chip openings are formed in the top between the first tool bit and the second tool bit and the top between the second tool bit and the third tool bit, and the front faces and the back faces of the lower right portions of the two crown-shaped chip openings communicate with hopper-shaped chip grooves which are symmetrically formed. A large amount of heat generated by the tool bit in the cutting process can be quickly dissipated, heat dissipation is quick in the cutting process, the saw blade tool bit is effectively protected, fine powder chippings are prevented from being accumulated in a cutting seam, chip removal is quick, and the cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a new type of crown segment diamond circular saw blade. Background Art

[0002] Diamond circular saw blades have the advantages of high processing efficiency and good processing quality in stone processing. Generally speaking, the working environment of diamond circular saw blades is relatively harsh, so in addition to being sharp, diamond circular saw blades also need to have long life, fast heat dissipation, normal chip removal, low noise, etc. The inventor applied for patent CN202220184441.1 - a special-shaped diamond circular saw blade. The following problems have been found in the use of the blade in recent years: 1) The two V-shaped chip grooves 1-3 symmetrically arranged along the center line of the same side of the cutter head 1 have a slow chip removal speed in actual application; 2) The upper and lower ends of the curved chip grooves 1-2 are vertically arranged on the saw blade base 2, so that when cutting, the circumferential cutting resistance is large, especially when cutting reinforced concrete, the part of the cutter head between the bottom of the two hook-shaped notches 1-1 is easy to break; 3) The width between the two adjacent curved chip grooves 1-2 on the same surface is wide, and the heat dissipation speed is slow. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a new crown segment diamond circular saw blade to solve the above technical problems.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a new crown-segment diamond circular saw blade, comprising a circular saw blade base, a circular center hole is provided in the center of the saw blade base, a plurality of transparent water outlets are evenly provided along the circumference of the inner edge of the saw blade base, the opening of the water outlet is radially opened to the outer edge of the saw blade base, a plurality of crown segment-type cutter head units are fixedly provided circumferentially on the outer edge of the saw blade base, the crown segment-type cutter head unit comprises a first cutter head, a second cutter head and a third cutter head which are integrally arranged and arranged in sequence, a crown-shaped chip opening is provided at the top between the first cutter head and the second cutter head, and a crown-shaped chip opening is provided at the top between the second cutter head and the third cutter head, and the front and back sides of the lower right sides of the two crown chip openings are connected to symmetrically arranged bucket-shaped chip grooves.

[0005] A further improvement of the technical solution of the present invention is that the top width of the bucket-shaped chip groove is wider than the bottom width and the height of the bottom inclined groove is half of the height of the crown segment type cutter head unit.

[0006] A further improvement of the technical solution of the present utility model is that the distance between the bottoms of the two crown-shaped chip openings in the same crown segment type cutter head unit is greater than the distance between the tops.

[0007] The further improvement of the utility model technical scheme lies in: the opening direction of all the bucket-shaped chip grooves in the plurality of crown segment block type tool bit units is same as the cutting rotation direction.

[0008] The further improvement of the utility model technical scheme lies in: the top width between the two bucket-shaped chip grooves in the same crown segment block type tool bit unit is greater than the bottom width.

[0009] The further improvement of the utility model technical scheme lies in: the saw blade base body is internally and uniformly provided with 4 groups of sound reduction and heat dissipation holes.

[0010] The further improvement of the utility model technical scheme lies in: the sound reduction and heat dissipation hole group comprises a plurality of sound reduction and heat dissipation holes arranged in a human shape, and the diameters of the plurality of sound reduction and heat dissipation holes are sequentially reduced from the center of the human shape to the outside.

[0011] Thanks to the above technical scheme, the utility model has the following technical progress:

[0012] 1. The tool bit is composed of a plurality of new crown segment block type tool bit units, the top between the first tool bit and the second tool bit and the top between the second tool bit and the third tool bit in each new crown segment block type tool bit unit are provided with crown-shaped chip openings, the right lower parts of the two crown-shaped chip openings are communicated with symmetrically arranged bucket-shaped chip grooves, the crown-shaped chip opening and the bucket-shaped chip groove form a scale-shaped heat dissipation and chip removal opening, the large amount of heat generated by the tool bit during cutting can be easily dissipated, the heat dissipation is fast during cutting, the saw blade tool bit is effectively protected, fine crushing chips can be prevented from accumulating in the cutting seam, the chip removal is fast, and the cutting efficiency is improved.

[0013] 2. The 4 groups of sound reduction and heat dissipation hole groups composed of a plurality of sound reduction and heat dissipation holes arranged in a human shape can effectively reduce noise and cool the diamond circular saw blade.

[0014] 3. The top width of the bucket-shaped chip groove is wider than the bottom width, and the bottom inclined groove height is one half of the height of the crown segment block type tool bit unit, so that the chip removal during cutting is facilitated.

[0015] 4. The distance between the bottoms of the two crown-shaped chip openings in the same crown segment block type tool bit unit is greater than the distance between the tops, so that the top area of the whole tool bit is relatively small, the contact area between the top of the tool bit and the cutting material during cutting is reduced, the cutting friction heat of the tool tooth is effectively reduced, the cutting resistance of the top of the tool bit is reduced, the holding force of the bottoms of the two crown-shaped chip openings is large and is not prone to breakage, and the service life of the diamond circular saw blade is greatly increased.

[0016] 5. The opening direction of all the bucket-shaped chip grooves in the plurality of crown segment block type tool bit units is same as the cutting rotation direction, so that the chip removal speed is faster under the action of centrifugal force.

[0017] 6. The top width between the two bucket-shaped chip grooves in the same crown segment cutter head unit of the present invention is greater than the bottom width, which facilitates the dissipation of a large amount of heat generated by the cutter head during cutting. The heat dissipation is fast during cutting, and the saw blade cutter head is effectively protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Fig. 2 This is a front view of the crown segment type cutter head unit of the utility model;

[0020] Fig. 3 This is an enlarged schematic diagram of a partial top view of a crown segment type cutter head unit of the cutter head of the utility model;

[0021] Among them, 1. Saw blade base, 1-1. Center hole, 1-2. Water inlet, 1-3. Silencer and heat dissipation hole group, 2. Crown segment type cutter head unit, 2-1. First cutter head, 2-2. Second cutter head, 2-3. Third cutter head, 3. Crown-shaped chip mouth, 4. Bucket-shaped chip groove. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the embodiments:

[0023] like Figs. 1 to 3 As shown, a new type of crown-shaped diamond circular saw blade includes a circular saw blade base 1, with a circular center hole 1-1 provided at the center of the saw blade base 1. Multiple transparent water inlets 1-2 are evenly distributed along the circumference of the inner edge of the saw blade base 1. The openings of the water inlets 1-2 extend radially to the outer edge of the saw blade base 1. Four groups of sound-absorbing and heat-dissipating holes 1-3 are evenly distributed along the inner circumference of the saw blade base 1. The sound-absorbing and heat-dissipating hole groups 1-3 include multiple sound-absorbing and heat-dissipating holes arranged in a human-shaped pattern, with the diameters of the multiple sound-absorbing and heat-dissipating holes decreasing in sequence from the center of the human-shaped pattern outward. The four groups of sound-absorbing and heat-dissipating holes formed by the multiple sound-absorbing and heat-dissipating holes arranged in a human-shaped pattern can effectively reduce noise and cool the diamond circular saw blade.

[0024] The outer edge of the saw blade base 1 is circumferentially fixed with a plurality of crown segment type cutter head units 2, which include integrally arranged first, second and third cutter head segments 2-1, 2-2 and 2-3, respectively. The top part between the first and second cutter head segments 2-1 and 2-2 and the top part between the second and third cutter head segments 2-2 and 2-3 are provided with crown-shaped chip ports 3. The distance between the bottoms of the two crown-shaped chip ports 3 in the same crown segment type cutter head unit 2 is greater than the distance between the tops, so that the top area of the entire cutter head is relatively small, reducing the contact area between the top of the cutter head and the cutting material during cutting, effectively reducing the cutting friction heat of the cutter teeth, reducing the cutting resistance of the top of the cutter head, and the holding force of the bottoms of the two crown-shaped chip ports is greater, which is not easy to break, greatly increasing the service life of the diamond circular saw blade.

[0025] The right lower part of the two crown-shaped chip ports 3 is communicated with symmetrically arranged bucket-shaped chip grooves 4. The top width of the bucket-shaped chip groove 4 is wider than the bottom width, and the bottom inclined groove height is half of the height of the crown segment type cutter head unit 2, which facilitates the discharge of the cutting debris during cutting. The opening direction of all the bucket-shaped chip grooves 4 in the plurality of crown segment type cutter head units 2 is the same as the cutting rotation direction, and under the action of centrifugal force, the discharge speed is faster. The top width between the two bucket-shaped chip grooves 4 in the same crown segment type cutter head unit 2 is greater than the bottom width, which facilitates the dissipation of a large amount of heat generated by the cutter head during cutting, and the heat dissipation is fast during cutting, effectively protecting the saw blade cutter head.

[0026] The crown-shaped chip port 3 and the bucket-shaped chip groove 4 form a scale-shaped heat dissipation and chip discharge port, which facilitates the dissipation of a large amount of heat generated by the cutter head during cutting, and the heat dissipation is fast during cutting, effectively protecting the saw blade cutter head, preventing fine crushed chips from accumulating in the cutting seam, discharging chips quickly, and improving the cutting efficiency.

Claims

1. A novel crown segment diamond circular saw blade, comprising a circular saw blade base (1), a circular center hole (1-1) being provided at the center of the saw blade base (1), a plurality of transparent water inlets (1-2) being uniformly provided along the circumference of the inner edge of the saw blade base (1), the openings of the water inlets (1-2) being radially extended to the outer edge of the saw blade base (1), and characterized in that: A plurality of crown segment type cutter head units (2) are fixedly arranged circumferentially on the outer edge of the saw blade base (1), and the crown segment type cutter head units (2) include a first cutter head (2-1), a second cutter head (2-2), and a third cutter head (2-3) which are arranged in an integral manner and arranged in sequence; a crown chip opening (3) is provided at the top between the first cutter head (2-1) and the second cutter head (2-2), and a crown chip opening (3) is provided at the top between the second cutter head (2-2) and the third cutter head (2-3); and the front and back sides of the lower right sides of the two crown chip openings (3) are both connected to symmetrically arranged bucket chip grooves (4).

2. The novel crown segment diamond circular saw blade according to claim 1, characterized in that: The top width of the bucket-shaped chip groove (4) is wider than the bottom width, and the bottom inclined groove height is half the height of the crown segment type cutter head unit (2).

3. The novel crown segment diamond circular saw blade according to claim 1, characterized in that: The distance between the bottoms of two crown-shaped chip openings (3) in the same crown segment type cutter head unit (2) is greater than the distance between the tops.

4. The novel crown segment diamond circular saw blade according to claim 1, characterized in that: The opening direction of all bucket-shaped chip grooves (4) in the plurality of crown segment type cutter head units (2) is the same as the cutting rotation direction.

5. The novel crown segment diamond circular saw blade according to claim 1, characterized in that: The top width between the two bucket-shaped chip grooves (4) in the same crown segment type cutter head unit (2) is greater than the bottom width.

6. The novel crown segment diamond circular saw blade according to claim 1, characterized in that: Four groups of sound-absorbing and heat-dissipating hole groups (1-3) are evenly distributed in the inner circumferential direction of the saw blade base (1).

7. The novel crown segment diamond circular saw blade according to claim 6, characterized in that: The noise reduction and heat dissipation hole group (1-3) comprises a plurality of noise reduction and heat dissipation holes arranged in a human shape, wherein the diameters of the plurality of noise reduction and heat dissipation holes are arranged to decrease in sequence from the center of the human shape toward the outside.

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