An adjustable slotting saw blade

Abstract

The utility model discloses an adjustable grooving saw blade relates to the field of paint-free board cutting processing. The adjustable grooving saw blade, including cutter base body, two tool bits are symmetrically installed to cutter base body outer circle surface, tool bit includes welding portion and grooving portion, and welding portion fixed mounting is in the outside of cutter base body, and the side of welding portion is installed to grooving portion, and the section of grooving portion sets up as inverted conical shape. The adjustable grooving saw blade, and tool bit designs 2 teeth symmetry shape, because the grooving portion is inverted conical tooth, and when grooving, the blade edge of grooving portion is gradually fed and cuts to the face, avoids the big pressure of direct cutting, thereby can replace the multiple tooth number with less tooth, also can play the same grooving quality, and the grooving is more light and quick.

Description

Technical Field

[0001] This utility model relates to the field of paint-free board cutting and processing technology, specifically an adjustable grooving saw blade. Background Technology

[0002] In the sawing process of melamine-faced boards, the melamine veneer is a hard and brittle material, and the sawing process often causes the melamine veneer to chip at the edges, affecting the appearance and moisture resistance. Therefore, the track saw for cutting melamine-faced boards generally adopts a master-slave design, that is, before the main saw cuts, a grooving cutter (daughter saw) is used to pre-groove the exit surface of the melamine-faced board to prevent chipping of the exit surface during the main saw cut. However, the existing grooving cutter has the following disadvantages:

[0003] 1. The grooving cutter (sub-saw) of the existing rail saw adopts a fixed tooth width design, which cannot be adjusted with the tooth width of the main saw. The matching of the two depends entirely on the manufacturing precision, which causes the two to not match well after grinding, affecting repeated use.

[0004] 2. To avoid chipping during pre-grooving by the grooving cutter (sub-saw), the existing design uses a multi-tooth design to minimize the feed per tooth, which increases production costs.

[0005] 3. Existing grooving cutters (sub-saws) generally use carbide tips. Because melamine veneer is a hard and brittle material, the tips wear very quickly, resulting in a short actual service life. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an adjustable grooving saw blade. It solves the problems of existing track saws using a fixed tooth width design for the grooving blade, which cannot be adjusted with the main saw tooth width. The matching of the two relies entirely on manufacturing precision, resulting in poor matching after grinding and affecting reusability. It also addresses the issue of existing designs using a multi-tooth design to minimize the feed per tooth and thus increase production costs in order to avoid chipping during pre-grooving of the grooving blade (sub-saw). Furthermore, it addresses the problem that existing grooving blades (sub-saws) generally use carbide tips, which wear very quickly due to the hard and brittle nature of melamine lining, resulting in insufficient actual service life.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: an adjustable grooving saw blade, comprising a cutter body, wherein two cutter heads are symmetrically mounted on the outer surface of the cutter body;

[0008] The blade includes:

[0009] The welding part is fixedly installed on the outside of the tool base;

[0010] The slotted part is installed on the side of the welded part, and the cross-section of the slotted part is set as an inverted cone shape.

[0011] Preferably, the material of the slotted portion is polycrystalline diamond.

[0012] Preferably, the outer side of the tool base has a through-hole.

[0013] Preferably, the outer side of the tool base is provided with a first slot and a second slot.

[0014] Preferably, a connecting portion is provided on the outer side of the tool base, and the connecting portion is located between the first slot and the second slot.

[0015] Preferably, the welded portion is welded to the end of the connecting portion.

[0016] Preferably, the slotted portion is made of polycrystalline diamond.

[0017] Preferably, the top tooth width of the slotted portion is designed to be 1.9 mm, and the bottom tooth width is designed to be 2.5 mm.

[0018] Preferably, the centripetal angles on both sides of the slotted portion are designed to be -4.2°.

[0019] This utility model discloses an adjustable grooving saw blade, which has the following beneficial effects:

[0020] This adjustable grooving saw blade features a symmetrical two-tooth head design. Because the grooving section has inverted conical teeth, the cutting edge of the grooving section feeds progressively towards the melamine surface during grooving, avoiding the high pressure caused by direct cutting. Therefore, fewer teeth can be used to replace more teeth while achieving the same grooving quality, and grooving is also easier. The grooving section is made of polycrystalline diamond, which is very suitable for cutting melamine veneers. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a partial structural diagram of the tool base and the tool head of this utility model;

[0024] Figure 3 This is a side view of the present invention;

[0025] Figure 4This is a schematic diagram of the connection between the tool body and the tool tip of this utility model.

[0026] In the figure: 1. Tool base; 101. Inner hole; 102. First slot; 103. Second slot; 104. Connecting part; 2. Tool head; 201. Welding part; 202. Grooved part. Detailed Implementation

[0027] This application provides an adjustable grooving saw blade, which solves the problems of existing track saws where the grooving cutter uses a fixed tooth width design, and the tooth width of the cutter cannot be adjusted. The matching of the two depends entirely on the manufacturing precision, resulting in poor matching after grinding and affecting reuse. Existing designs use a multi-tooth design to avoid chipping of the pre-grooved edge of the grooving cutter (sub-saw), minimizing the feed per tooth to avoid chipping, which increases production costs. Existing grooving cutters (sub-saws) generally use carbide tips, which wear very quickly due to the hard and brittle melamine lining, resulting in insufficient service life.

[0028] The grooving part 202 is designed with inverted conical teeth, and the cutter head 2 is designed with a symmetrical shape of 2 teeth. Since the grooving part 202 has inverted conical teeth, when grooving, the cutting edge of the grooving part 202 feeds towards the surface in a step-by-step manner, avoiding the large pressure caused by direct cutting. Therefore, fewer teeth can be used to replace more teeth, while still achieving the same grooving quality, and grooving is also easier.

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] This utility model discloses an adjustable grooving saw blade.

[0031] According to the appendix Figure 1-4 As shown, it includes a tool base 1, and two tool heads 2 are symmetrically mounted on the outer surface of the tool base 1;

[0032] Blade 2 includes:

[0033] Welding part 201 is fixedly installed on the outside of the tool base 1;

[0034] The slotted part 202 is installed on the side of the welded part 201, and the cross-section of the slotted part 202 is set as an inverted cone shape.

[0035] It is specifically disclosed that the material of the slotted part 202 is polycrystalline diamond.

[0036] The cutter head 2 is designed with a symmetrical two-tooth shape. Since the grooving part 202 is an inverted conical tooth, the cutting edge of the grooving part 202 feeds towards the melamine surface during grooving, avoiding the high pressure caused by direct cutting. Therefore, fewer teeth can be used to replace more teeth, while still achieving the same grooving quality, and grooving is also easier. The grooving part 202 is made of polycrystalline diamond, which is very suitable for cutting melamine veneers.

[0037] Furthermore, a through-hole 101 is provided on the outer side of the tool base 1.

[0038] Furthermore, a first slot 102 and a second slot 103 are provided on the outer side of the tool base 1.

[0039] Furthermore, a connecting portion 104 is provided on the outer side of the tool base 1, and the connecting portion 104 is located between the first slot 102 and the second slot 103.

[0040] Furthermore, the welding part 201 is welded to the end of the connecting part 104.

[0041] Furthermore, the slotted portion 202 is made of polycrystalline diamond.

[0042] Furthermore, the top tooth width of the slotted part 202 is designed to be 1.9mm, and the bottom tooth width is designed to be 2.5mm.

[0043] Furthermore, the radial angles on both sides of the slotted portion 202 are designed to be -4.2°.

[0044] Because the grooving section 202 is designed with inverted conical teeth, when the grooving saw blade is working, it moves close to the workpiece, thereby allowing the cutting width of the grooving section 202 to be adjusted between the top tooth width and the bottom tooth width. The cutting width range can be adjusted between 1.9 and 2.5 mm. In contrast, traditional designs can only work at the tooth width, with a 1° gap on both sides of the tooth, and the cutting width cannot be adjusted.

[0045] When the grooving saw blade cuts melamine-faced boards, because the grooving part 202 is shaped like an inverted conical tooth and the centripetal angle of the grooving part 202 is -4.2°, the cutting point between the saw teeth and the workpiece moves gradually from the tooth tip to the tooth bottom along both sides of the cutting edge. The cutting width of the melamine-faced layer also gradually expands, avoiding the simultaneous stress on the melamine-faced layer. Therefore, even if 2 teeth are used to replace the original 12 teeth, the same grooving quality can be achieved, and the grooving is easier.

[0046] The grooving section 202 is made of polycrystalline diamond. Polycrystalline diamond has high hardness, and when combined with the carbide layer, it has impact resistance, making it very suitable for cutting melamine veneer layers. Its service life is more than 50 times that of carbide grooving saw blades.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable grooving saw blade, comprising a blade base (1), characterized in that, Two cutting heads (2) are symmetrically mounted on the outer surface of the tool base (1); The cutter head (2) includes: Welding part (201) is fixedly installed on the outside of the tool base (1); The slotted part (202) is installed on the side of the welded part (201), and the cross section of the slotted part (202) is set as an inverted cone shape.

2. The adjustable grooving saw blade according to claim 1, characterized in that, The grooved portion (202) is made of polycrystalline diamond.

3. The adjustable grooving saw blade according to claim 1, characterized in that, The outer side of the tool base (1) is provided with a through hole (101).

4. An adjustable grooving saw blade according to claim 1, characterized in that, The outer side of the tool base (1) is provided with a first slot (102) and a second slot (103).

5. An adjustable grooving saw blade according to claim 4, characterized in that, The tool base (1) is provided with a connecting part (104) on the outside, and the connecting part (104) is located between the first slot (102) and the second slot (103).

6. An adjustable grooving saw blade according to claim 5, characterized in that, The welding part (201) is welded to the end of the connecting part (104).

7. An adjustable grooving saw blade according to claim 1, characterized in that, The slotted portion (202) is made of polycrystalline diamond.

8. An adjustable grooving saw blade according to claim 1, characterized in that, The top tooth width of the slotted part (202) is designed to be 1.9 mm, and the bottom tooth width is designed to be 2.5 mm.

9. An adjustable grooving saw blade according to claim 1, characterized in that, The radial angles on both sides of the slotted portion (202) are designed to be -4.2°.

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