98t woodworking cutting saw blade

Abstract

The utility model relates to the technical field of circular saw blade, specifically relates to a 98T woodworking cutting saw blade, including saw disc, the outer diameter of saw disc is 300mm, the edge of saw disc is surrounded and is provided with 98 saw teeth, the saw tooth includes the cutting section and the sunken section connected into an organic whole, the sunken section is used for connecting the saw disc, the width of sunken section is less than the width of cutting section. The utility model adopts the specific tooth number design of 98 teeth, and the tooth spacing is controlled at 9.61mm, and the sunken section is arranged in the part of saw tooth connecting the saw disc, provides the high -efficient chip removal capacity, under the same feed speed and rotational speed, 98 teeth relative to the 96 teeth saw blade widely used in the industry, the single-tooth cutting amount reduces about 2.08%, and the single-tooth heat load is smaller.

Description

Technical Field

[0001] This utility model relates to the field of circular saw blade technology, and in particular to a saw blade with a specific number of teeth. Background Technology

[0002] Door panel cutting blades are key tools in woodworking furniture manufacturing, used for high-precision cutting of wooden door panels. Traditional door panel cutting blades generally adopt a design with an outer diameter of 300mm, 96 teeth, a tooth width of 3.1mm, and a tooth spacing of approximately 9.81mm. However, in practical applications, this type of saw blade has the following technical defects:

[0003] 1. Significant heat accumulation during cutting: Due to the small number of teeth (96 teeth), the cutting amount per tooth is large, resulting in a high heat input density (Q') per unit time during the cutting process. This can easily cause local overheating of the saw blade, accelerate the wear of the saw teeth, and even cause the edge of the door panel to burn.

[0004] 2. Vibration and machining accuracy issues: Under the traditional tooth number design, the cutting force fluctuates greatly (±5%–10%), resulting in obvious lateral vibration of the sawing system. The processed door panel cross-section is prone to periodic cutting marks, and the surface roughness is difficult to meet the precision requirements of high-end furniture (usually Ra≤6.3μm).

[0005] 3. Short service life: Overheating and vibration together cause the saw teeth to become dull faster. When cutting high-density door panels (such as oak and walnut) continuously, the service life of traditional 96-tooth saw blades is shortened by about 15%–20% compared with similar products.

[0006] Therefore, there is an urgent need for a new type of cutting tool with a new tooth count design that can reduce heat input and vibration, extend saw blade life, and improve machining quality while ensuring cutting efficiency. Utility Model Content

[0007] The purpose of this invention is to overcome the technical problems of severe heat generation and poor cutting quality in the cutting process of the existing 96-tooth door panel cutting blade, and to provide a 98T woodworking cutting saw blade.

[0008] This utility model provides a 98T woodworking cutting saw blade, including a saw disc with an outer diameter of 300mm. The saw disc has 98 saw teeth arranged around its edge. Each saw tooth includes a cutting section and a recessed section connected as one piece. The recessed section is used to connect to the saw disc, and the width of the recessed section is smaller than the width of the cutting section.

[0009] This utility model discloses a 98T woodworking cutting saw blade, which adopts a specific tooth number design of 98 teeth with a tooth spacing controlled at 9.61mm. At the same time, a recessed section is set in the part where the saw teeth connect to the saw disc to provide efficient chip removal capability. Under the same feed speed and rotation speed, compared with the industry-common 96-tooth saw blade, the 98-tooth blade reduces the single-tooth cutting amount by about 2.08% and the single-tooth heat load is smaller. This means that the cutting force fluctuation amplitude is reduced by 5% - 10%, the vibration amplitude of the sawing system (especially the lateral vibration) is reduced by 10% - 20%, the single-tooth cutting mark spacing on the cut material cross-section is reduced and the depth is shallower, and the surface roughness value of the cross-section is reduced by 5% - 15%, which significantly extends the service life of the saw blade and improves the cutting dimensional accuracy.

[0010] Preferably, the recessed section is located in the middle of the cutting section, forming mutually symmetrical steps on both sides of the saw teeth.

[0011] The symmetrical step design ensures a balanced distribution of cutting force, avoids uneven loading on one side, prevents chip accumulation on one side, and prevents clogging.

[0012] Preferably, the height of the step is 0.2-0.5 mm.

[0013] The stepped differential design further disperses the cutting force, reduces the load on a single tooth, and improves chip removal efficiency while reducing the cutting temperature by 10%–15%.

[0014] Preferably, the saw blade is provided with an expansion joint.

[0015] The saw blade body has an asymmetrical structure. This design breaks the structural symmetry, actively suppresses the resonance tendency during rotation and weakens the noise generation mechanism, effectively attenuating system vibration (especially lateral and torsional vibration) and radiated noise. This significantly optimizes the dynamic stability of sawing, making the saw blade run more smoothly and creating conditions for increasing the feed rate or reducing energy consumption, thus directly improving the overall cutting efficiency.

[0016] Preferably, the saw teeth are structural components made of cemented carbide.

[0017] Saw teeth made of cemented carbide (such as tungsten-cobalt alloys) have extremely high hardness and compressive strength, effectively resisting the wear of hard components in wood (such as knots and adhesives), significantly extending the life of the saw teeth. Compared with traditional high-speed steel saw blades, cemented carbide saw teeth have 3-5 times better wear resistance, making them especially suitable for continuous cutting of high-density wood (such as oak and walnut). The low coefficient of friction of cemented carbide (μ≈0.1–0.2) reduces the frictional heat generation between chips and the cutting edge, while inhibiting chip adhesion (such as resin buildup), keeping the cutting edge continuously sharp. Combined with the characteristic of a 98-tooth design that reduces the cutting amount per tooth, the cutting temperature is further reduced by 10%-15%, preventing the edges of the door panel from scorching.

[0018] Preferably, the serrations are provided with heat dissipation holes.

[0019] The ventilation holes can increase airflow and accelerate heat dissipation from the blade edge.

[0020] Preferably, the heat dissipation hole is disposed on the side surface in the width direction of the serration.

[0021] Heat is naturally conducted to the side heat dissipation holes through the sawtooth substrate, avoiding chip removal interference caused by opening holes on the cutting surface. At the same time, the cutting surface remains intact and without holes, avoiding stress concentration or coating peeling caused by opening holes.

[0022] Preferably, the diameter of the heat dissipation hole is 0.5-1mm.

[0023] A ventilation hole diameter ≥ 0.5m can create effective air convection, reducing the cutting temperature by 15%-25%. When the hole diameter is ≤ 1mm, the bending strength loss of the saw teeth is < 5%.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] 1. This utility model provides a 98T woodworking cutting saw blade, which adopts a specific tooth number design of 98 teeth, with the tooth spacing controlled at 9.61mm. At the same time, a recessed section is set in the part where the saw teeth connect to the saw disc to provide efficient chip removal capability. Under the same feed speed and rotation speed, the 98-tooth saw blade reduces the cutting amount per tooth by about 2.08% and the heat load per tooth by the industry-standard 96-tooth saw blade.

[0026] 2. This utility model provides a 98T woodworking cutting saw blade, which reduces the heat load on the saw teeth, reduces the fluctuation of cutting force by 5% - 10%, reduces the vibration amplitude of the sawing system (especially the transverse vibration) by 10% - 20%, reduces the spacing and depth of single-tooth cutting marks on the cut material cross-section, and reduces the surface roughness value of the cross-section by 5% - 15%, significantly extending the service life of the saw blade and improving the cutting dimensional accuracy. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a 98T woodworking cutting saw blade according to this utility model;

[0028] Figure 2 This is a schematic diagram of the saw teeth described in this utility model;

[0029] Marked in the image:

[0030] 1-Saw disc, 11-Expansion joint, 2-Saw teeth, 21-Cutting section, 22-Depressed section, 201-Step, 202-Heat dissipation hole. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0032] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0034] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0035] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0036] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Example 1

[0037] like Figure 1 and Figure 2 As shown, a 98T woodworking cutting saw blade includes a saw disc 1 with an outer diameter of 300mm. The saw disc 1 has 98 saw teeth 2 arranged around its edge. Each saw tooth 2 includes a cutting section 21 and a recessed section 22 connected as one piece. The recessed section is used to connect the saw disc 1, and the width of the recessed section 22 is smaller than the width of the cutting section 21.

[0038] This embodiment describes a 98T woodworking saw blade with a specific tooth count of 98 teeth and a tooth spacing controlled at 9.61mm. A recessed section is incorporated at the connection point between the saw teeth 2 and the saw disc 1, providing efficient chip removal. At the same feed rate and rotational speed, compared to the industry-standard 96-tooth saw blade, the 98-tooth blade reduces the cutting amount per tooth by approximately 2.08% and has a lower heat load per tooth. This translates to a 5%-10% reduction in cutting force fluctuation, a 10%-20% reduction in the amplitude of sawing system vibration (especially lateral vibration), a smaller and shallower spacing of single-tooth cutting marks on the cut material's cross-section, and a 5%-15% reduction in surface roughness. This significantly extends the saw blade's lifespan and improves cutting dimensional accuracy.

[0039] In an optional embodiment, the recessed section 22 is located in the middle of the cutting section 21, and symmetrical steps 201 are formed on both sides of the saw teeth 2. The symmetrical step 201 design ensures that the cutting force is evenly distributed, avoids one-sided load, avoids chip accumulation on one side, and prevents blockage.

[0040] Step 201: The height is 0.2-0.5mm. The stepped difference design further disperses the cutting force, reduces the load on a single tooth, improves chip removal efficiency, and reduces the cutting temperature by 10%–15%.

[0041] In an optional embodiment, the sawtooth 2 is a structural component made of cemented carbide.

[0042] The saw teeth 2, made of carbide (such as tungsten-cobalt alloys), have extremely high hardness and compressive strength, effectively resisting the wear of hard components in wood (such as knots and adhesives), significantly extending the life of the saw teeth. Compared with traditional high-speed steel saw blades, the wear resistance of carbide saw teeth 2 is improved by 3-5 times, making them especially suitable for continuous cutting of high-density wood (such as oak and walnut). The low coefficient of friction of carbide (μ≈0.1–0.2) reduces the frictional heat generation between chips and the cutting edge, while inhibiting chip adhesion (such as resin buildup), keeping the cutting edge continuously sharp. Combined with the characteristic of a 98-tooth design that reduces the cutting amount per tooth, the cutting temperature is further reduced by 10%-15%, preventing the edges of the door panel from scorching. Example 2

[0043] like Figure 1 As shown, in this embodiment, the difference from embodiment 1 is that the saw disc 1 is provided with an expansion joint 11.

[0044] In this embodiment, by setting an expansion joint 11 on the saw disc 1, the saw disc 1 body has an asymmetrical structural feature. This design breaks the structural symmetry, actively suppresses the resonance tendency during rotation and weakens the noise generation mechanism, effectively attenuating system vibration (especially lateral and torsional vibration) and radiated noise, thereby significantly optimizing the dynamic stability of sawing. This not only makes the saw blade run more smoothly, but also creates conditions for increasing the feed rate or reducing energy consumption, directly improving the overall cutting efficiency. Example 3

[0045] like Figure 2 As shown, in this embodiment, the difference from embodiment 1 is that the serration 2 is provided with heat dissipation holes 202.

[0046] In this embodiment, the heat dissipation hole 202 can increase airflow and accelerate heat dissipation from the blade edge.

[0047] In an optional embodiment, the heat dissipation hole 202 is disposed on the side of the saw tooth 2 in the width direction. Heat is naturally conducted to the side heat dissipation hole 202 through the saw tooth 2 substrate, avoiding chip interference caused by the opening of the cutting surface. At the same time, the cutting surface remains intact and without holes, avoiding stress concentration or coating peeling caused by the opening.

[0048] In an optional embodiment, the diameter of the heat dissipation hole 202 is 0.5-1mm. A hole diameter ≥0.5mm can form effective air convection, reducing the cutting temperature by 15%-25% (actual data). When the hole diameter ≤1mm, the bending strength loss of the saw tooth 2 is <5%.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 98T woodworking cutting saw blade, characterized in that, The saw includes a saw disc (1) with an outer diameter of 300 mm. The saw disc (1) has 98 saw teeth (2) arranged around its edge. The saw teeth (2) include a cutting section (21) and a recessed section (22) connected together. The recessed section (22) is used to connect the saw disc (1). The width of the recessed section (22) is smaller than the width of the cutting section (21).

2. The 98T woodworking cutting saw blade according to claim 1, characterized in that, The recessed section (22) is located in the middle of the cutting section (21), forming mutually symmetrical steps (201) on both sides of the saw teeth (2).

3. The 98T woodworking cutting saw blade according to claim 2, characterized in that, The height of the step (201) is 0.2-0.5mm.

4. A 98T woodworking cutting saw blade according to claim 1, characterized in that, The saw blade (1) is provided with an expansion joint (11).

5. A 98T woodworking cutting saw blade according to claim 1, characterized in that, The saw teeth (2) are structural components made of cemented carbide.

6. A 98T woodworking cutting saw blade according to any one of claims 1-5, characterized in that, The saw teeth (2) are provided with heat dissipation holes (202).

7. A 98T woodworking cutting saw blade according to claim 6, characterized in that, The heat dissipation hole (202) is disposed on the side of the serration (2) in the width direction.

8. A 98T woodworking cutting saw blade according to claim 7, characterized in that, The diameter of the heat dissipation hole (202) is 0.5-1mm.

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