Saw blade for processing hard miscellaneous wood

Abstract

The invention discloses a saw blade for processing hard miscellaneous trees, which comprises a saw blade body, a plurality of tool bit groups arranged in the circumferential direction are arranged on the saw blade body, each tool bit group comprises an inclined tool bit and a bottom cleaning tool bit, and each inclined tool bit comprises an offset high-position angle and an offset low-position angle. Through the arrangement of the inclined tool bit and the bottom cleaning tool bit, a smooth cutting face can be generated by means of the inclined tool bit in the cutting process, meanwhile, a middle area which cannot be cut by the inclined tool bit can be effectively cleaned and cut by means of the bottom cleaning tool bit, and meanwhile due to the fact that the shapes of the tool bits in each tool bit set are different, the cutting efficiency is improved. Therefore, the heat dissipation efficiency is improved in a staggered working state of the tool bits.

Description

Technical Field

[0001] The invention relates to the technical field of saw blades, in particular to a saw blade for processing hard miscellaneous wood. Background Art

[0002] In the field of hardwood processing, conventional processing tools have rough cutting surfaces, short processing life, and low efficiency. For example, the publication number "CN220006219U" discloses a "boss ultra-thin carbide saw blade", which includes a base and a gasket. The outer edge of the base has a number of cutter heads and a number of equally spaced expansion joints. The gasket is connected to the base through a number of equally spaced inner ring welds and a number of equally spaced outer ring welds. The base has a number of circumferentially spaced base air holes, and the gasket has a number of circumferentially spaced gasket air holes. The diameter and number of the base air holes are the same as those of the gasket air holes, and the base air holes are spaced circumferentially from the gasket air holes. However, in actual applications, since all the cutter heads use the same cutter head setting, the cutting surface is rough during the cutting process and the heat dissipation efficiency is low. Summary of the invention

[0003] In view of the problems of rough cutting surface and low heat dissipation efficiency in the prior art mentioned in the background technology, the present invention provides a saw blade for processing hard miscellaneous wood, which can ensure the flatness and smoothness of the cutting surface and improve the heat dissipation efficiency, thereby ensuring the cutting quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions.

[0005] A saw blade for processing hard miscellaneous wood comprises a saw blade body, on which a plurality of cutter head groups arranged in a circumferential direction are arranged, wherein the cutter head group comprises an inclined cutter head and a bottom-clearing cutter head, and the inclined cutter head comprises an offset high angle and an offset low angle. By arranging the inclined cutter head and the bottom-clearing cutter head, a smooth cutting surface can be produced by the inclined cutter head during the cutting process, and the bottom-clearing cutter head can be used to effectively clean and cut the middle area that cannot be cut by the inclined cutter head. At the same time, since the cutter heads in each cutter head group are of different shapes, the cutter heads are arranged to work in a staggered manner, thereby improving the heat dissipation efficiency.

[0006] Preferably, the inclined cutter head includes a left-leaning cutter head and a right-leaning cutter head, and the left-leaning cutter head and the right-leaning cutter head are both arranged in the same cutter head group. The inclined cutter head is arranged as a left-leaning cutter head and a right-leaning cutter head, so that a smooth cutting effect can be formed on the cutting surfaces on both sides.

[0007] Preferably, in the same cutter head group, the left-leaning cutter head and the right-leaning cutter head are arranged adjacent to each other, so that the uniformity and smoothness of cutting can be ensured, so that the subsequent bottom cleaning cutter head can clean the uncut areas of the left-leaning cutter head and the right-leaning cutter head at the same time.

[0008] Preferably, the offset high angle is offset from the saw blade body in the axial direction by a distance T. The offset high angle is set with an offset gap from the saw blade body, so that the saw blade body does not participate in friction during the cutting process, improving the smoothness of cutting while protecting the saw blade body.

[0009] Preferably, the inclined blade head includes an inclined surface arranged near the side of the offset high angle, and the offset angle of the inclined surface is γ, 0.5°≤γ≤1°. The offset angle of the inclined surface is set to γ, so that the cutting is mainly carried out by relying on the offset high angle during the cutting process, ensuring the sharpness of the cutting, while reducing the contact between the side and the cutting object, and improving the smoothness of the cutting.

[0010] Preferably, the inclined cutter head includes an inclined cutter head root, the inclined cutter head root includes a high-position side root arranged near the side of the offset high angle, the inclined cutter head root includes a low-position side root arranged near the side of the offset low angle, there is an offset distance T1 between the high-position side root and the saw blade body, there is an offset distance T2 between the low-position side root and the saw blade body, T2<T1.

[0011] Preferably, the inclined cutter head includes a vertical plane arranged close to the side of the offset low angle.

[0012] Preferably, the bottom cleaning cutter head includes a plurality of toothed cutter heads, and the toothed cutter heads are provided with a plurality of cleaning teeth arranged at intervals, and the cleaning teeth on adjacent toothed cutter heads in the same cutter head group are staggered; the toothed cutter heads are provided with groove top edges, and the cleaning teeth are arranged on the groove top edges, and the groove depths of the groove top edges of the same cutter head group decrease successively in the direction away from the inclined cutter head. The toothed cutter head is provided on the bottom cleaning cutter head to ensure a certain cleaning efficiency and heat dissipation effect, and can smoothly pass through the cutting object to avoid a large resistance force during the passing process. Therefore, the bottom cleaning cutter head in the present embodiment is configured as a toothed cutter head, and the cleaning teeth are arranged at intervals to increase the heat dissipation space. Since there are gaps between the cleaning teeth, the adhesion of debris on the toothed cutter head is increased. A groove top edge is arranged on the top of the bottom-clearing cutter head. Since a raised uncut area will be formed in the middle area of ​​the cutting object after being cut by the left-inclined cutter head and the right-inclined cutter head, the groove top edge is arranged on the top of the bottom-clearing cutter head so as to correspond to the raised uncut area, thereby avoiding uneven force on the toothed cutter head. The groove top edges of the grooves of the toothed cutter head have different groove depths, and the groove depth away from the inclined cutter head is shallower, so that the toothed cutter head away from the inclined cutter head can cut deeper, thereby improving the cutting efficiency and ensuring that the force on each toothed cutter head is also uniform.

[0013] Preferably, there is an offset inclination angle β between the offset high angle and the offset low angle, and the angle is 5°≤γ≤15°.

[0014] Preferably, there is an offset distance T3 between the side edge of the bottom cleaning cutter head and the saw blade body, 0≤T3≤0.05mm.

[0015] The bottom cleaning cutter head includes a machining top edge, and the machining top edge is located between the offset high angle and the offset low angle. The machining top edge is arranged between the offset high angle and the offset low angle, so that the area that cannot be cleaned by the offset high angle can be cleaned, which helps to remove chips, while not affecting the subsequent cutting of the offset high angle and not producing an excessive blocking effect.

[0016] The beneficial effects of the present invention are as follows: (1) It can ensure the smoothness of the cutting surface and improve the heat dissipation efficiency, thereby ensuring the cutting quality; (2) It can improve the bottom cleaning effect during the cutting process, improve the adhesion of debris on the bottom cleaning cutter head, and at the same time ensure the smoothness and uniformity of the cutting, and ensure that the wear degree of each cleaning tooth is equivalent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the medium tilted cutter head.

[0019] Figure 3 yes Figure 1 Annotated schematic diagram of the inclined cutter head.

[0020] Figure 4 yes Figure 1 A marked schematic diagram of the mid-clearance cutter head.

[0021] Figure 5 This is an axonometric view of Example 2.

[0022] Figure 6 This is a front view of Example 2.

[0023] Figure 7 It is a schematic diagram of the cutting process of Example 2.

[0024] In the figure: 1. Saw blade body; 2 blade sets; 3 inclined cutter head, 31 offset high angle, 32 offset low angle, 33 left inclined cutter head, 34 right inclined cutter head, 35 inclined surface, 36 inclined cutter head root, 361 high side root, 362 low side root, 37 vertical plane; 4 bottom cleaning cutter head, 41 toothing cutter head, 411 cleaning teeth, 412 groove top edge, 42 processing top edge. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Embodiment 1: like Figure 1 , 2 As shown, a saw blade for processing hard miscellaneous wood includes a saw blade body 1, and a plurality of cutter head groups 2 arranged circumferentially are arranged on the saw blade body 1, and the cutter head group 2 includes an inclined cutter head 3 and a bottom-clearing cutter head 4, and the inclined cutter head 3 includes an offset high angle 31 and an offset low angle 32. By providing the inclined cutter head 3 and the bottom-clearing cutter head 4, a smooth cutting surface can be produced by the inclined cutter head 3 during the cutting process, and the bottom-clearing cutter head 4 can be used to effectively clean and cut the middle area that cannot be cut by the inclined cutter head 3. At the same time, since the shapes of the cutter heads in each cutter head group 2 are different, the cutter heads are staggered to improve the heat dissipation efficiency.

[0027] like Figure 1 As shown, the inclined cutter head 3 includes a left inclined cutter head 33 and a right inclined cutter head 34, and the left inclined cutter head 33 and the right inclined cutter head 34 are both provided in the same cutter head group 2. The inclined cutter head 3 is provided with the left inclined cutter head 33 and the right inclined cutter head 34, so that a smooth cutting effect can be formed on the cutting surfaces on both the left and right sides.

[0028] like Figure 1 As shown, in the same cutter head group 2, the left-leaning cutter head 33 and the right-leaning cutter head 34 are arranged adjacent to each other. The left-leaning cutter head 33 and the right-leaning cutter head 34 are arranged adjacent to each other, so that the uniformity and smoothness of cutting can be ensured, so that the subsequent bottom cleaning cutter head 4 can clean the uncut areas of the left-leaning cutter head 33 and the right-leaning cutter head 34 at the same time.

[0029] like Figure 3 As shown, the offset high angle 31 is offset from the saw blade body 1 by a distance T in the axial direction. The offset high angle 31 is set to have an offset gap with the saw blade body 1, so that the saw blade body 1 does not participate in friction during the cutting process, improving the smoothness of cutting and protecting the saw blade body 1 at the same time.

[0030] like Figure 3As shown, the inclined blade head 3 includes an inclined surface 35 disposed near the side of the offset high angle 31, and the offset angle of the inclined surface 35 is γ, 0.5°≤γ≤1°. The offset angle of the inclined surface 35 is set to γ, so that the cutting is mainly performed by the offset high angle 31 during the cutting process, ensuring the sharpness of the cutting, while reducing the contact between the side and the cutting object, and improving the smoothness of the cutting. In this embodiment, the height of the offset high angle 31 of the inclined blade head 3 is L, T1=TL*tanγ.

[0031] like Figure 2 , 3 As shown, the inclined cutter head 3 includes an inclined cutter head root 36, the inclined cutter head root 36 includes a high-position side root 361 arranged near the side of the offset high-position angle 31, the inclined cutter head root 36 includes a low-position side root 362 arranged near the side of the offset low-position angle 32, there is an offset distance T1 between the high-position side root 361 and the saw blade body 1, there is an offset distance T2 between the low-position side root 362 and the saw blade body 1, T2<T1.

[0032] like Figure 2 As shown, the inclined cutter head 3 includes a vertical plane 37 arranged close to one side of the offset low angle 32 .

[0033] like Figure 3 As shown, there is an offset inclination angle β between the offset high angle 31 and the offset low angle 32, and the angle β is 5°≤γ≤15°.

[0034] like Figure 4 As shown, there is an offset distance between the side of the bottom cleaning head 4 and the saw blade body 1 T3 , 0≤T3≤0.05mm.

[0035] like Figure 4 As shown, the bottom cleaning cutter head includes a machining top edge 42, and the machining top edge 42 is located between the offset high angle and the offset low angle. The machining top edge is set between the offset high angle and the offset low angle, so that the area that cannot be cleaned by the offset high angle can be cleaned, which helps to remove chips, while not affecting the subsequent cutting of the offset high angle and not producing too large a blocking effect.

[0036] The assembly and working process of the saw blade for processing hard miscellaneous wood in this embodiment are as follows: in this embodiment, a plurality of cutter head groups 2 are arranged on the saw blade body 1, wherein each cutter head group 2 includes a plurality of cutter heads, including a tilted cutter head 3 and a bottom-clearing cutter head 4 in this embodiment. Further, in this embodiment, the tilted cutter head 3 includes a left-tilted cutter head 33 and a right-tilted cutter head 34, wherein the left-tilted cutter head 33 and the right-tilted cutter head 34 are arranged adjacent to each other, and in the same group of cutter head groups 2, after the left-tilted cutter head 33 and the right-tilted cutter head 34 are arranged in sequence, the next cutter head arranged is the bottom-clearing cutter head 4, that is, during the cutting process, the cutting object is first cut by the left-tilted cutter head 33 and the right-tilted cutter head 34, and then the bottom-clearing cutter head 4 will contact the cutting object. The bottom cleaning head 4 can clean the area after the left-leaning head 33 and the right-leaning head 34 have completed cutting, including discharging debris, and can process the middle part that the left-leaning head 33 and the right-leaning head 34 cannot cut, thereby ensuring efficient cutting of the cutting object. At the same time, since the left-leaning head 33 and the right-leaning head 34 can ensure the smoothness of the cutting surface, the cutting tool in this embodiment can improve the smoothness of the cutting surface while ensuring cutting efficiency.

[0037] Further, in the present embodiment, the left-leaning blade head 33 and the right-leaning blade head 34 have different inclination directions, but are both provided with an offset high angle 31 and an offset low angle 32, wherein the offset high angle 31 of the left-leaning blade head 33 is arranged close to the left side, and the offset high angle 32 of the right-leaning blade head 34 is arranged close to the right side, so during use, the left-leaning blade head 33 mainly cuts the left cutting surface of the object to be cut, while the right-leaning blade head 34 mainly cuts the right side of the object to be cut. And in the present embodiment, since the inclined blade head 3 has an offset high angle 31 and an offset low angle 32, there is a height difference between the offset high angle 31 and the cheap low angle, so that the main cutting point of the left-leaning blade head 33 during the cutting process is on the offset high angle 31 on the left side, and the main cutting point of the right-leaning blade head 34 is on the offset high angle 31 on the right side, and due to the pointed structure of the offset high angle 31, a sharper cutting can be produced during the cutting process, thereby forming a smooth cutting surface.

[0038] Furthermore, in the present embodiment, the offset high angle 31 of the inclined cutter head 3 is located at the leftmost or rightmost side of the entire cutter head, wherein there is an offset distance T between the offset high angle 31 and the saw blade body 1, so that the offset high angle 31 can fully cut the cutting object, and the inclined cutter head 3 includes an inclined cutter head root 36, which is an area arranged at the bottom of the inclined cutter head 3, and the inclined cutter head root 36 is divided into a high side root 361 and a low side root 362, and further, the high side root 361 is arranged on a side close to the offset high angle 31, and the low side root 362 is arranged on a side close to the offset low angle 32 , wherein in this embodiment, there are offset distances T1 and T2 between the high side root 361 and the low side root 362 and the saw blade body 1, and T2 < T1, and T1 < T, so that in this embodiment, the distances from the saw blade body 1 are arranged from large to small as follows: offset high angle 31, high side root 361, low side root 362, and since the plane of the inclined cutter head 3 close to the offset low angle 32 is a vertical plane 37, the offset low angle 32 and the low side root 362 are on the same vertical line, so the distances between the offset low angle 32 and the low side root 362 and the saw blade body 1 are the same.

[0039] Therefore, in this embodiment, since T1 is less than T, during the cutting process, the inclined cutter head 3 is only controlled to make the offset high angle 31 contact the cutting object, thereby ensuring the smoothness of the cutting, and avoiding the contact between the inclined surface between the offset high angle 31 and the high side root 361 and the cutting surface, thereby improving the heat dissipation efficiency and avoiding the impact on the cutting surface after cutting. At the same time, it can reduce the resistance generated during the rotation of the saw blade. Since T1 and T are both greater than 0, the saw blade body 1 will not generate friction during the cutting process, thereby ensuring the smoothness of the cutting.

[0040] Furthermore, in this embodiment, there is an inclination angle β between the offset high angle 31 and the offset low angle 32, which can also enable the cutting part of the inclined cutter head 3 to be located on the offset high angle 31, thereby ensuring the smoothness of the cutting while ensuring the sharpness of the cutting of the offset high angle 31.

[0041] Since there are offset high angles 31 and offset low angles 32 on both the left-leaning cutter head 33 and the right-leaning cutter head 34, after the object is cut by the offset high angles 31 and the offset low angles 32, there will be a blind area in the middle area that cannot be cut. Therefore, a bottom cleaning cutter head 4 is set in the cutter head group 2 to clean and cut the area, thereby reducing the cutting resistance of the left-leaning cutter head 33 and the right-leaning cutter head 34 in the subsequent cutting process. At the same time, in order not to affect the cutting effect of the offset high angle 31, the height of the bottom cleaning cutter head 4 is set to be smaller than the height of the offset high angle 31 in the inclined cutter head 3, and the height of the bottom cleaning cutter head 4 is also greater than the height of the offset low angle 32 in the inclined cutter head 3, that is, the position of the top edge of the processing is between the offset high angle and the offset low angle. Both sides of the bottom cleaning cutter head 4 are vertical planes 37, and the left and right sides only exceed the saw blade body by 10 to 0.05 mm.

[0042] Embodiment 2: like Figure 5 , 6 As shown in , 7, different from the embodiment 1, the bottom cleaning cutter head 4 in this embodiment includes a plurality of toothed cutter heads 41, and the toothed cutter heads 41 are provided with a plurality of cleaning teeth 411 arranged at intervals, and the cleaning teeth 411 on adjacent toothed cutter heads 41 in the same cutter head group 2 are staggered; the toothed cutter heads 41 are provided with groove top edges 412, and the cleaning teeth 411 are arranged on the groove top edges 412, and the groove depths of the groove top edges 412 of the same cutter head group 2 decrease in the direction away from the side of the inclined cutter head 3. The toothed cutter head 41 is provided on the bottom cleaning cutter head 4, which ensures a certain cleaning efficiency and heat dissipation effect, and can smoothly pass through the cutting object to avoid generating a large blocking force during the passing process. Therefore, the bottom cleaning cutter head 4 in this embodiment is configured as a toothed cutter head 41, and the cleaning teeth 411 are arranged at intervals, which increases the heat dissipation space. Since there are gaps between the cleaning teeth 411, the adhesion of debris on the toothed cutter head 41 is increased. A groove top edge 412 is provided at the top of the bottom cleaning cutter head 4. Since a raised uncut area will be formed in the middle area of ​​the cutting object after being cut by the left-inclined cutter head 33 and the right-inclined cutter head 34, the groove top is provided on the top of the bottom cleaning cutter head 4 so as to correspond to the uncut raised area, thereby avoiding uneven force on the toothed cutter head 41. The groove top edge 412 of the toothed cutter head 41 has different groove depths, and the groove depth away from the inclined cutter head 3 is shallower, so that the toothed cutter head 41 away from the inclined cutter head 3 can cut deeper, thereby improving the cutting efficiency and ensuring that the force on each toothed cutter head 41 is also uniform.

[0043] The assembly and working process of the saw blade for processing hard miscellaneous wood in this embodiment are as follows: In this embodiment, a toothed cutter head 41 is provided on the bottom cleaning cutter head 4. Since the main cutting part in this embodiment is the offset high angle 31, the main cutting cutter head is the inclined cutter head 3, and the bottom cleaning cutter head 4 only needs to clean the debris and the middle area after cutting. It is necessary to ensure a certain cleaning efficiency and heat dissipation effect. At the same time, it is necessary to ensure that it can pass through the cutting object smoothly to avoid generating a large resistance force during the passing process. Therefore, the bottom cleaning cutter head 4 in the present embodiment is configured as a toothed cutter head 41. Furthermore, the toothed cutter head 41 in the present embodiment is provided with a plurality of cleaning teeth 411, and the cleaning teeth 411 are arranged at intervals, so that there are gaps between each cleaning tooth 411, thereby increasing the heat dissipation space, and improving the passability of the cutting object, and reducing the cutting resistance. At the same time, since there are gaps between each cleaning tooth 411, the adhesion of debris on the toothed cutter head 41 is increased, and the discharge of debris on the middle area is convenient. The cleaning teeth 411 on adjacent toothed cutter heads 41 are staggered, so as to ensure the complete cutting of the cutting object and avoid omissions. At the same time, the cutting pressure of each toothed cutter head 41 can be reduced, thereby offsetting the reduction in structural strength caused by the setting of the cleaning teeth 411.

[0044] Furthermore, in this embodiment, a groove top edge 412 is provided at the top of the bottom cleaning cutter head 4. Since a raised uncut area will be formed in the middle area of ​​the cutting object after being cut by the left-leaning cutter head 33 and the right-leaning cutter head 34, the groove top is provided at the top of the bottom cleaning cutter head 4 so as to correspond to the raised uncut area, thereby avoiding uneven force on the toothed cutter head 41 and ensuring that each cleaning tooth 411 is evenly stressed, thereby ensuring the life of the structure. At the same time, since the groove top edge 412 is provided, the toothed cutter head 41 can be controlled to contact the cutting object only through the cleaning teeth 411 during the cutting process.

[0045] Furthermore, in this embodiment, the groove depths of the groove top edges 412 of adjacent toothed cutter heads 41 are different, and the groove depth away from the inclined cutter head 3 is shallower, so that the toothed cutter head 41 away from the inclined cutter head 3 can cut deeper, thereby improving the cutting efficiency and ensuring that the force applied to each toothed cutter head 41 is also uniform.

[0046] In the present embodiment, a plurality of cutter head groups 2 are arranged on the saw blade body 1, wherein each cutter head group 2 includes a plurality of cutter heads, including a tilted cutter head 3 and a bottom-clearing cutter head 4 in the present embodiment. Further, in the present embodiment, the tilted cutter head 3 includes a left-tilted cutter head 33 and a right-tilted cutter head 34, wherein the left-tilted cutter head 33 and the right-tilted cutter head 34 are arranged adjacent to each other, and the cutter head arranged after the left-tilted cutter head 33 and the right-tilted cutter head 34 in the same group of cutter head groups 2 is the bottom-clearing cutter head 4, that is, during the cutting process, the cutting object is first cut by the left-tilted cutter head 33 and the right-tilted cutter head 34, and then the bottom-clearing cutter head 4 contacts the cutting object. The bottom cleaning head 4 can clean the area after the left-leaning head 33 and the right-leaning head 34 have completed cutting, including discharging debris, and can process the middle part that the left-leaning head 33 and the right-leaning head 34 cannot cut, thereby ensuring efficient cutting of the cutting object. At the same time, since the left-leaning head 33 and the right-leaning head 34 can ensure the smoothness of the cutting surface, the cutting tool in this embodiment can improve the smoothness of the cutting surface while ensuring cutting efficiency.

[0047] Further, in the present embodiment, the left-leaning blade head 33 and the right-leaning blade head 34 have different inclination directions, but are both provided with an offset high angle 31 and an offset low angle 32, wherein the offset high angle 31 of the left-leaning blade head 33 is arranged close to the left side, and the offset high angle 32 of the right-leaning blade head 34 is arranged close to the right side, so during use, the left-leaning blade head 33 mainly cuts the left cutting surface of the object to be cut, while the right-leaning blade head 34 mainly cuts the right side of the object to be cut. And in the present embodiment, since the inclined blade head 3 has an offset high angle 31 and an offset low angle 32, there is a height difference between the offset high angle 31 and the cheap low angle, so that the main cutting point of the left-leaning blade head 33 during the cutting process is on the offset high angle 31 on the left side, and the main cutting point of the right-leaning blade head 34 is on the offset high angle 31 on the right side, and due to the pointed structure of the offset high angle 31, a sharper cutting can be produced during the cutting process, thereby forming a smooth cutting surface.

[0048] Furthermore, in the present embodiment, the offset high angle 31 of the inclined cutter head 3 is located at the leftmost or rightmost side of the entire cutter head, wherein there is an offset distance T between the offset high angle 31 and the saw blade body 1, so that the offset high angle 31 can fully cut the cutting object, and the inclined cutter head 3 includes an inclined cutter head root 36, which is an area arranged at the bottom of the inclined cutter head 3, and the inclined cutter head root 36 is divided into a high side root 361 and a low side root 362, and further, the high side root 361 is arranged on a side close to the offset high angle 31, and the low side root 362 is arranged on a side close to the offset low angle 32 , wherein in this embodiment, there are offset distances T1 and T2 between the high side root 361 and the low side root 362 and the saw blade body 1, and T2 < T1, and T1 < T, so that in this embodiment, the distances from the saw blade body 1 are arranged from large to small as follows: offset high angle 31, high side root 361, low side root 362, and since the plane of the inclined cutter head 3 close to the offset low angle 32 is a vertical plane 37, the offset low angle 32 and the low side root 362 are on the same vertical line, so the distances between the offset low angle 32 and the low side root 362 and the saw blade body 1 are the same.

[0049] Therefore, in this embodiment, since T1 is less than T, during the cutting process, the inclined cutter head 3 is only controlled to make the offset high angle 31 contact the cutting object, thereby ensuring the smoothness of the cutting, and avoiding the contact between the inclined surface between the offset high angle 31 and the high side root 361 and the cutting surface, thereby improving the heat dissipation efficiency and avoiding the impact on the cutting surface after cutting. At the same time, it can reduce the resistance generated during the rotation of the saw blade. Since T1 and T are both greater than 0, the saw blade body 1 will not generate friction during the cutting process, thereby ensuring the smoothness of the cutting.

[0050] Furthermore, in this embodiment, there is an inclination angle β between the offset high angle 31 and the offset low angle 32, which can also enable the cutting part of the inclined cutter head 3 to be located on the offset high angle 31, thereby ensuring the smoothness of the cutting while ensuring the sharpness of the cutting of the offset high angle 31.

[0051] Since there are offset high angles 31 and offset low angles 32 on both the left-leaning cutter head 33 and the right-leaning cutter head 34, after the object is cut by the offset high angles 31 and the offset low angles 32, there will be a blind area in the middle area that cannot be cut. Therefore, a bottom cleaning cutter head 4 is provided in the cutter head group 2 to clean and cut the area, thereby reducing the cutting resistance of the left-leaning cutter head 33 and the right-leaning cutter head 34 in the subsequent cutting process. At the same time, in order not to affect the cutting effect of the offset high angle 31, the height of the bottom cleaning cutter head 4 is set to be smaller than the height of the offset high angle 31 in the inclined cutter head 3, and the height of the bottom cleaning cutter head 4 is also greater than the height of the offset low angle 32 in the inclined cutter head 3. Both sides of the bottom cleaning cutter head 4 are vertical planes 37, and the left and right sides only exceed the saw blade body by 10 to 0.05 mm.

Claims

1. A saw blade for processing hard miscellaneous wood, characterized in that: The invention comprises a saw blade body (1), on which a plurality of circumferentially arranged cutter head groups (2) are arranged, wherein the cutter head group (2) comprises an inclined cutter head (3) and a bottom-clearing cutter head (4), and the inclined cutter head (3) comprises an offset high angle (31) and an offset low angle (32).

2. A saw blade for processing hardwood according to claim 1, characterized in that: The inclined cutter head (3) comprises a left-inclined cutter head (33) and a right-inclined cutter head (34), and the left-inclined cutter head (33) and the right-inclined cutter head (34) are both arranged in the same cutter head group (2).

3. A saw blade for processing hardwood according to claim 2, characterized in that: In the same cutter head group (2), the left-leaning cutter head (33) and the right-leaning cutter head (34) are arranged adjacent to each other.

4. A saw blade for processing hardwood according to claim 1, characterized in that: There is an offset distance T between the offset high angle (31) and the saw blade body (1) in the axial direction.

5. A saw blade for processing hardwood according to claim 1, characterized in that: The inclined cutter head (3) comprises an inclined surface (35) arranged close to a side of the offset high angle (31), and the offset angle of the inclined surface (35) is γ, 0.5°≤γ≤1°.

6. A saw blade for processing hardwood according to claim 1, characterized in that: The inclined cutter head (3) comprises an inclined cutter head root (36), the inclined cutter head root (36) comprises a high-position side root (361) arranged close to a side of an offset high-position angle (31), the inclined cutter head root (36) comprises a low-position side root (362) arranged close to a side of an offset low-position angle (32), an offset distance T1 exists between the high-position side root (361) and the saw blade body (1), and an offset distance T2 exists between the low-position side root (362) and the saw blade body (1), and T2<T1.

7. A saw blade for processing hardwood according to claim 1, characterized in that: The inclined cutter head (3) comprises a vertical plane (37) arranged close to one side of the offset low angle (32).

8. A saw blade for processing hardwood according to any one of claims 1 to 7, characterized in that: The bottom cleaning cutter head (4) comprises a plurality of toothed cutter heads (41), each of which is provided with a plurality of cleaning teeth (411) arranged at intervals, and the cleaning teeth (411) on adjacent toothed cutter heads (41) in the same cutter head group (2) are staggered; a groove top edge (412) is provided on the toothed cutter head (41), and the cleaning teeth (411) are arranged on the groove top edge (412); in the same cutter head group (2) along a direction away from the side of the inclined cutter head (3), the groove depth of each groove top edge (412) decreases successively.

9. A saw blade for processing hardwood according to any one of claims 1 to 7, characterized in that: There is an offset inclination angle β between the offset high angle (31) and the offset low angle (32), and the angle is 5°≤β≤15°.

10. A saw blade for processing hardwood according to any one of claims 1 to 7, characterized in that: The bottom cleaning cutter head (4) comprises a processed top edge (42), and the processed top edge (42) is located between the offset high angle (31) and the offset low angle (32).

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