A hard metal saw blade suitable for wood cutting

Abstract

The application discloses a hard alloy saw blade suitable for wood cutting, which comprises a saw blade base body, a plurality of alloy cutter heads are arranged on the outer circumferential side of the saw blade base body at a circumferential interval, the outer side end of the saw blade base body is divided into a plurality of cutter head bodies by the plurality of alloy cutter heads, the alloy cutter heads are arranged at one end of the cutter head bodies and extend outward from the cutter head bodies, first chip removal and heat dissipation holes are formed between adjacent cutter head bodies, and a plurality of second chip removal and heat dissipation holes are uniformly arranged on the saw blade base body in a circumferential direction. The plurality of cutter head bodies are arranged on the saw blade base body, the first chip removal and heat dissipation holes formed between adjacent cutter head bodies can quickly remove the sawdust generated during cutting and timely dissipate heat, friction and temperature rise caused by the fact that the sawdust is stuck between the cutter head bodies and wood are avoided, the wood is affected by heat generation, and the temperature dissipation effect of the second chip removal and heat dissipation holes on the saw blade base body is further enhanced.

Description

Technical Field

[0001] This application relates to the field of saw blade technology for wood cutting, and more particularly to a carbide saw blade suitable for wood cutting. Background Technology

[0002] Wood cutting is a core process in furniture manufacturing, construction, and woodworking, and its efficiency and quality directly affect product cost, precision, and the aesthetics of the finished product. Depending on cutting precision, efficiency, and cost requirements, tools include hand saws, jigsaws, and sliding table saws. Complementary cutting tools include carbide saw blades and diamond saw blades. Because diamond saw blades are expensive and wood is less hard than metal, carbide saw blades are typically chosen for wood cutting.

[0003] Currently, alloy saw blades used for wood sawing have several alloy cutting heads evenly distributed circumferentially on the outer side of the saw blade body, forming a sawtooth shape. The cutting operation is achieved through the contact between the alloy cutting heads and the wood while the saw blade body rotates at high speed. Although wood is easier to saw than metal, the high temperature generated during high-speed sawing can cause the wood to blacken, affecting the quality of the sawn wood, or even rendering it unusable. Summary of the Invention

[0004] To address the aforementioned problems, this application aims to provide a carbide saw blade suitable for wood cutting. Through the first chip removal and heat dissipation hole, the saw chips generated during cutting can be quickly discharged and the heat can be dissipated in a timely manner, avoiding the frictional heating caused by saw chips getting stuck between the blade body and the wood, which would lead to the wood being affected by heat.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a carbide saw blade suitable for wood cutting, the saw blade including a saw blade base, a plurality of alloy cutting heads are arranged circumferentially on the outer periphery of the saw blade base, the outer end of the saw blade base is divided into a plurality of cutting head bodies by the plurality of alloy cutting heads, the alloy cutting heads are arranged at one end of the cutting head body and extend outward from the cutting head body, and a first chip removal and heat dissipation hole is formed between adjacent cutting head bodies.

[0006] Preferably, the saw blade substrate is further provided with a plurality of second heat dissipation and chip removal holes evenly distributed circumferentially.

[0007] Preferably, the second heat dissipation and chip removal holes are of varying sizes along the circumferential direction.

[0008] Preferably, a scraping tip is formed at one end of each cutter body opposite to the alloy cutter head, and the scraping tip is radially lower than the alloy cutter head.

[0009] Preferably, the saw blade substrate is further provided with a through hole that is axially symmetrical and communicates with the clamping hole at its center. The through hole and the clamping hole form a left end edge and a right end edge with a horizontal height difference.

[0010] The beneficial effects of this application are: the saw blade base is provided with multiple cutter heads, and the first chip removal and heat dissipation holes between adjacent cutter heads can quickly discharge sawdust generated during cutting and dissipate heat in a timely manner, avoiding the frictional heating caused by sawdust getting stuck between the cutter head and the wood, which would lead to heat generation in the wood. The heat dissipation effect of the saw blade base is further enhanced by the second heat dissipation and chip removal holes.

[0011] To further enhance the heat dissipation effect during sawing, the second heat dissipation and chip removal holes are of different sizes along the circumference. The different sizes of the second heat dissipation and chip removal holes in this structure can achieve a certain turbulent effect on the generated heat, avoiding the problem of insufficient heat dissipation due to heat flowing in the same direction.

[0012] The scraping tip mechanically removes the wood chips that are stuck to the wood, thus solving the problem of wood chips sticking together and being difficult to break during cutting.

[0013] The left and right ends, which form a horizontal height difference through the through hole, allow the saw blade to rotate relative to the rotating device when the cutting force changes. This buffers the saw blade from jamming and deformation caused by changes in cutting force, thus providing a certain degree of protection for the saw blade. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the planar structure of the carbide saw blade of this application.

[0015] Figure 2 For this application Figure 1 Enlarged view of the structure at point A in the middle.

[0016] Figure 3 This illustration shows a carbide saw blade used in this application cutting wood.

[0017] Figure 4 For this application Figure 3 Enlarged view of the structure at point B in the middle.

[0018] Figure 5 This illustration shows the removal of adhering sawdust by the cutting edge in this application.

[0019] Figure 6 The left and right end structures of this application are formed by through-holes to create a horizontal height difference. Figure 1 (Arrow direction) diagram.

[0020] Figure 7 This diagram illustrates the forces acting on the left and right ends of the saw blade when it is clamped.

[0021] In the diagram: 1d - clamping hole; 3 - wood. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] See attached document Figures 1-7 The illustration shows a carbide saw blade suitable for wood cutting. The saw blade includes a saw blade base 1, with a plurality of carbide cutting heads 2 arranged circumferentially at intervals along the outer periphery of the saw blade base 1. The plurality of carbide cutting heads 2 divide the outer end of the saw blade base 1 into a plurality of cutting head bodies 11. The carbide cutting heads 2 are located at one end of the cutting head body 11 and extend outward from the cutting head body 11. A first chip removal and heat dissipation hole 1a is formed between adjacent cutting head bodies 11. Figure 1 As shown, the outer sides of the multiple blade bodies 11 are not connected through the first chip removal and heat dissipation holes 1a. Therefore, during rotary cutting, the waste chips and heat generated by the contact between a single blade body 11 and the wood will be quickly dissipated through the first chip removal and heat dissipation holes 1a on both sides, preventing the accumulation of heat on the saw blade and the transfer to the wood body to cause high temperature. At the same time, the first chip removal and heat dissipation holes 1a can quickly discharge the saw chips generated during cutting, avoiding the frictional heating caused by saw chips getting stuck between the blade body 11 and the wood.

[0024] Because wood sawing produces wood chips that scatter more easily than metal sawing, effective methods are needed to remove these chips. Figure 1 As shown, the saw blade base 1 is also provided with a plurality of second heat dissipation and chip removal holes 1b evenly distributed circumferentially. These second heat dissipation and chip removal holes 1b can effectively remove scattered wood chips from the saw blade base, and at the same time further enhance the heat dissipation effect of the saw blade base. The first chip removal and heat dissipation holes 1a and the second heat dissipation and chip removal holes 1b can effectively reduce the weight of the saw blade body, reduce its rotational inertia during cutting, and make it more convenient for the operator to hold and operate.

[0025] To further enhance the heat dissipation effect during sawing, the second heat dissipation and chip removal holes 1b are of different sizes along the circumference. The second heat dissipation and chip removal holes 1b of this structure can achieve a certain turbulent effect on the generated heat through the holes of different sizes, avoiding the problem of insufficient heat dissipation due to heat flowing in the same direction.

[0026] When cutting wood, sawdust is less likely to break off from the wood compared to metal sawdust, and it tends to curl and stick together on the wood. Therefore, to solve this problem, such as... Figure 2 As shown, a scraping tip 11a is formed at one end of each cutter body 11 opposite to the alloy cutter head 2, and this scraping tip 11a is radially lower than the alloy cutter head 2. Figure 5As shown, after the alloy cutter head 2 rotates and saws the wood body, the wood chips that are stuck to the wood body are mechanically removed by the scraper tip 11a, thus solving the problem of wood chips easily sticking together and being difficult to break during cutting. The scraper tip 11a, which is lower than the alloy cutter head 2, avoids the problem of the scraper tip 11a contacting the wood during cutting, thus avoiding the problem of increasing the rotational cutting resistance.

[0027] When cutting wood, sawdust has a certain degree of adhesion. Furthermore, when the wood has a high moisture content and the moisture content varies across different areas (lower moisture content on the outer surface due to dryness, higher moisture content in the center), the sawing force when the saw blade contacts the wood changes. This results in increased cutting force when cutting to the center of the wood. Additionally, the relatively hardness at the nodes on the wood surface also contributes to variations in the saw blade's cutting force. Therefore, these variations in cutting force can cause the saw blade to momentarily jam. If the saw blade is clamped and fixed, this can lead to jamming and deformation due to changes in force. Therefore, to solve this problem, such as... Figure 1 , 6 As shown, a through hole 1c, axially symmetrically formed on the saw blade base 1, is provided, communicating with the clamping hole 1d at its center. This through hole 1c and the clamping hole form a left end edge a1 and a right end edge a2 with a horizontal height difference. For example... Figure 7 As shown, after the saw blade is clamped from both sides through the mounting holes, the left end a1 and the right end a2 are clamped in opposite directions. Its overall structure is similar to that of a spring washer. When the cutting force changes, it can overcome the elastic clamping force of the left end a1 and the right end a2, so that the saw blade rotates relative to the rotating device. This buffers the problem of saw blade jamming and deformation caused by changes in cutting force, and provides a certain degree of protection for the saw blade.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope of protection, and all such changes and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A carbide saw blade suitable for wood cutting, characterized in that: The saw blade includes a saw blade base (1), and a plurality of alloy cutter heads (2) are arranged circumferentially on the outer periphery of the saw blade base (1). The outer end of the saw blade base (1) is divided into a plurality of cutter head bodies (11) by the plurality of alloy cutter heads (2). The alloy cutter heads (2) are arranged at one end of the cutter head body (11) and extend outward from the cutter head body (11). A first chip removal and heat dissipation hole (1a) is formed between adjacent cutter head bodies (11).

2. The carbide saw blade according to claim 1, characterized in that: The saw blade substrate (1) is also provided with a plurality of second heat dissipation and chip removal holes (1b) evenly distributed in the circumference.

3. The carbide saw blade according to claim 2, characterized in that: The second heat dissipation and chip removal hole (1b) varies in size along the circumference.

4. The carbide saw blade according to claim 3, characterized in that: Each of the cutter heads (11) has a scraping tip (11a) formed at one end opposite to the alloy cutter head (2), and the scraping tip (11a) is lower than the alloy cutter head (2) in the radial direction.

5. The carbide saw blade according to claim 4, characterized in that: A through hole (1c) is axially symmetrically provided on the saw blade base (1), which communicates with the clamping hole at its center. The through hole (1c) and the clamping hole form a left end edge (a1) and a right end edge (a2) with a horizontal height difference.

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