A diamond saw blade for veneer particle board processing

Abstract

The present application relates to the field of wood and wood composite cutting processing, and discloses a diamond saw blade for processing of veneer particle board, a cutter body, a corundum sawing layer, the corundum sawing layer is fixedly arranged on the outer circular sidewall of the cutter body in a circular band shape, a cutter tooth assembly is fixedly connected to the outer circular sidewall of the corundum sawing layer and comprises a cutter tooth, the cutter tooth comprises a pre-cutting cutter tooth, a rough trimming cutter tooth and a fine trimming cutter tooth, the length of the main blade chamfer of each cutter tooth accounts for 20-30%, 10-20% and 5-10% of the total length of the main blade respectively, the main blade chamfer is arranged to reduce the possibility of collapse of the diamond cutter tooth, improve the impact resistance of the diamond cutter tooth, maintain the sharpness of the rough trimming cutter tooth and the fine trimming cutter tooth, and reduce the possibility of collapse of the veneer particle board edge, and the corundum sawing layer is arranged to add the sawing layer after secondary trimming, so that the sawing path walls of the veneer particle board with uneven and multi-layer structures can have relatively consistent surface quality, and the problem of uneven processing quality of the sawing path walls is solved.

Description

Technical Field

[0001] The invention relates to the field of cutting and processing of wood and wood composite materials, in particular to a diamond saw blade for processing veneer particleboards. Background Art

[0002] As we all know, diamond cutting tools are widely used in cutting a variety of materials. Their many advantages include: 1. Diamond cutting tools have high hardness. Diamond is one of the hardest materials known, reaching a hardness of 10 on the Mohs scale. Therefore, diamond circular saw blades can easily handle materials of varying hardness. For example, diamond circular saw blades can easily cut hard materials such as diamond, glass, marble, and granite. 2. Diamond cutting tools have high wear resistance. Diamond circular saw blades have excellent wear resistance, maintain their sharpness for a long time, and are not prone to losing cutting efficiency. Compared with other common cutting tools, diamond circular saw blades have a longer service life, significantly reducing cutting costs. 3. Excellent cutting precision. Diamond circular saw blades have excellent cutting precision, achieving fine cuts and smooth cut surfaces. This makes diamond circular saw blades widely used in industries requiring high-precision cutting, such as jewelry processing and optoelectronics. 4. Wide applicability. Diamond circular saw blades can be used to cut a variety of materials, including metal, diamond, glass, stone, and more. Therefore, they are widely used in various fields such as construction, manufacturing, mining, gemstone processing, and electronics manufacturing.

[0003] Although diamond tools have many advantages, general diamond circular saw blades are prone to many problems when cutting veneer particleboard due to the symmetrical structure of the veneer particleboard. For example: ① In the process of cutting veneer particleboard, due to the uneven hardness of each layer of material and the high brittleness of diamond material, the circular saw blade is prone to edge chipping; ② Due to the high hardness and brittleness of the veneer particleboard's facing layer, it is easy to produce edge chipping during high-speed cutting, affecting the appearance of the finished product; ③ Due to the large particle size of the coarse particle layer of the veneer particleboard, the blunt knife cutting ④ During high-speed cutting, if the teeth are not sharp enough or the friction with the saw path wall is large, the blade may grab the fibers and tear them apart instead of cutting the particleboard clearly, resulting in fuzzing. ⑤ Due to the different coarseness of the coarse and fine particle layers, the surface roughness of the saw path wall is uneven, and the circular saw blade is more likely to get stuck during the cutting of the veneer particleboard. Therefore, it is very necessary to propose a diamond saw blade for processing veneer particleboard. Summary of the Invention

[0004] The purpose of the present invention is to provide a diamond saw blade for processing veneer particleboard, so that when the veneer particleboard is cut by the diamond saw blade, the diamond teeth are prone to chipping, the veneer layer of the veneer particleboard is prone to edge chipping, the saw path wall is prone to pits and fuzzing, and the saw blade is easily clamped by the board. This is to supplement and improve the existing technical defects and unmet technical requirements.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a diamond saw blade for processing veneer particleboard, comprising:

[0006] The knife body has a mounting hole at its center and is circular in shape;

[0007] The corundum sawing and grinding layer is in the shape of a circular belt and is fixedly arranged on the outer circular side wall of the cutter body;

[0008] The tooth assembly is fixedly connected to the corundum sawing and grinding layer, and the tooth assembly is distributed on the outer circular side wall of the corundum sawing and grinding layer in a central symmetrical structure. 9-15 groups of tooth assemblies are provided on the corundum sawing and grinding layer;

[0009] The cutter tooth assembly includes a cutter tooth seat and cutter teeth. One end of the cutter tooth seat is fixedly connected to the corundum saw grinding layer, and the other end is equipped with cutter teeth made of diamond.

[0010] The blade teeth include pre-cutting blade teeth, rough trimming blade teeth and fine trimming blade teeth, which are sequentially mounted on the blade tooth seat. There is at least one pre-cutting blade tooth, at least two rough trimming blade teeth and at least two fine trimming blade teeth.

[0011] The main edge chamfer length of the pre-cutting tooth accounts for 20-30% of the total main edge length, the main edge chamfer length of the roughing tooth accounts for 10-20% of the total main edge length, and the main edge chamfer length of the finishing tooth accounts for 5-10% of the total main edge length.

[0012] Preferably, the coarse trimming teeth include at least a first coarse trimming tooth and a second coarse trimming tooth, the first coarse trimming tooth is located between the pre-cutting tooth and the second coarse trimming tooth, and the cutting edges of the first coarse trimming tooth and the second coarse trimming tooth are arranged on opposite sides;

[0013] The finishing teeth include at least a first finishing tooth and a second finishing tooth, wherein the first finishing tooth is located between the second roughing tooth and the second finishing tooth, and the cutting edges of the first finishing tooth and the second finishing tooth are also arranged on opposite sides, and the cutting edge of the first finishing tooth is arranged on the same side as the cutting edge of the first roughing tooth;

[0014] Both sides of the pre-cutting teeth are provided with cutting edges;

[0015] A window is provided between the pre-cutting tooth and the second finishing tooth in the adjacent tooth assembly, and each group of teeth includes only one window.

[0016] It should be emphasized that the cutting edges of all adjacent teeth of the same type are set on opposite sides, that is, the first roughing tooth cuts one side of the saw path wall, the second roughing tooth cuts the other side of the saw path wall, the first fine-tuning tooth cuts one side of the saw path wall, and has the same cutting surface as the first roughing tooth, and the second fine-tuning tooth cuts the other side of the saw path wall, and has the same cutting surface as the second roughing tooth. In summary, the pre-cutting tooth has cutting edges on both sides and cuts both sides of the saw path wall, and the roughing, fine-tuning, and under-tooth fine-planing knives all have only one side of the cutting edge and only cut one side of the saw path wall.

[0017] Preferably, the window includes:

[0018] A vertical portion, the vertical portion is located on the tooth seat near the end of the pre-cutting tooth, the extension line of the vertical portion is located between the pre-cutting tooth and the second finishing tooth, and does not intersect with the tooth;

[0019] A chip groove, one end of which is connected to the vertical portion, and the chip groove is located at an end of the vertical portion close to the center of the cutter body;

[0020] The arc part is located on the end of the tooth seat close to the second finishing tooth, and the end of the arc part close to the center of the cutter body is connected to the end of the discharge groove away from the vertical part.

[0021] Preferably, a sub-tooth planer is provided on the vertical part, and the main cutting edges of the sub-tooth planers in adjacent windows are arranged on opposite sides, that is, adjacent sub-tooth planers cut different saw path walls, the inner concave angle of the rear tooth surface of the sub-tooth planer is 5 to 7°, and the net cutting width accounts for 1 to 2% of the total cutting width.

[0022] Preferably, the center angle I of the pre-cutting teeth is 8-12°, the center angle I of the rough trimming teeth is 5-8°, and the center angle I of the fine trimming teeth is 3-6°.

[0023] It should be emphasized that the same type of single-blade teeth are the same in the same parameters.

[0024] Preferably, the rake angle I of the pre-cutting teeth is 3 to 7°, the rake angle of the rough trimming teeth is 8 to 15°, and the rake angle of the fine trimming teeth is 17 to 25°;

[0025] The wedge angle I of the pre-cutting teeth is 78-82°, the wedge angle II of the roughing teeth is 73-77°, the wedge angle III of the fine-cutting teeth is 63-67°, and the back angle is 5°.

[0026] Preferably, the concave angle I of the rear tooth surface of the pre-cutting teeth is 1 to 3°, the concave angle II of the rear tooth surface of the rough-trimming teeth is 3 to 5°, and the concave angle III of the rear tooth surface of the fine-trimming teeth is 5 to 7°;

[0027] The side edge concave angle I of the pre-cutting teeth is 1 to 3 degrees, the side edge concave angle of the roughing teeth is 3 to 7 degrees, and the side edge concave angle of the finishing teeth is 7 to 12 degrees.

[0028] Preferably, the net cutting width I of the pre-cutting teeth accounts for 80-90% of the total cutting width, the net cutting width II of the roughing teeth accounts for 5-10% of the total cutting width, and the net cutting width III of the finishing teeth accounts for 1-3% of the total cutting width.

[0029] Preferably, the bevel grinding angle of the front tooth surface of the rough trimming cutter teeth is 5 to 10 degrees, and the bevel grinding angle of the front tooth surface of the fine trimming cutter teeth is 10 to 15 degrees;

[0030] The bevel grinding angle of the rear tooth surface of the rough-trimmed cutter teeth is 3 to 7 degrees, and the bevel grinding angle of the rear tooth surface of the fine-trimmed cutter teeth is 7 to 12 degrees.

[0031] Preferably, the main edge chamfer cutting contour line of the pre-cutting teeth, the rough trimming teeth and the finishing teeth is a continuous straight line.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. By setting up three types of teeth, namely pre-cutting, rough trimming and fine trimming, this application can allocate most of the net cutting width to the pre-cutting teeth designed with emphasis on toughness, thereby reducing the cutting resistance that the rough trimming and fine trimming teeth need to bear, lowering the toughness requirements for the teeth, and being able to design them with higher tooth sharpness, thereby avoiding the occurrence of defects such as pits and fuzzing, and improving the processing quality of the saw path wall.

[0034] 2. This application sets different parameters for the three types of cutter teeth, namely, the center angle, front angle, wedge angle, back angle, back tooth surface concave angle, measuring edge concave angle, net cutting width, front tooth surface bevel grinding angle and main edge chamfer, so as to better improve the strength and sharpness of the cutter teeth during cutting, reduce friction with the cut object, and make this application have high stability, high cutting efficiency, and high flatness of the cut surface.

[0035] 3. The present application is provided with a toothed fine planer, which can improve the efficiency of collecting sawdust and can further reprocess the saw path wall after fine-tuning, thereby improving the processing quality and processing stability of the saw path wall.

[0036] 4. The present application sets a corundum sawing and grinding layer. Adding the sawing and grinding layer after the secondary finishing can make the uneven and multi-layered sawing path walls of the veneer particleboard achieve relatively consistent surface quality, solving the problem of uneven sawing path wall processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2For the present invention Figure 1 A local enlarged schematic diagram of point A shown in FIG;

[0039] Figure 3 Another overall structural diagram of the present invention;

[0040] Figure 4 For the present invention Figure 3 A local enlarged schematic diagram of point E is shown in FIG;

[0041] Figure 5 Another overall structural diagram of the present invention;

[0042] Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of point F is shown in FIG;

[0043] Figure 7 For the present invention Figure 1 Top view of the pre-cutting teeth viewed from the B direction;

[0044] Figure 8 For the present invention Figure 1 A top view of the teeth of the first roughing cutter viewed from the direction B in FIG.

[0045] Figure 9 For the present invention Figure 1 A top view of the teeth of the second coarse trimming cutter viewed from the direction B in FIG.

[0046] Figure 10 For the present invention Figure 1 Top view of the teeth of the first finishing cutter viewed from the direction B in FIG;

[0047] Figure 11 For the present invention Figure 1 Top view of the teeth of the second finishing cutter viewed from the direction B in FIG;

[0048] Figure 12 For the present invention, Figure 3 The blade surface view of the pre-cutting tooth viewed from the B direction;

[0049] Figure 13 For the present invention, Figure 3 A view of the blade surface of the first roughing tool as viewed from the B direction;

[0050] Figure 14 For the present invention, Figure 3 The blade surface view of the second roughing cutter viewed from the B direction;

[0051] Figure 15 For the present invention, Figure 3 The blade surface view of the first finishing tool as viewed from the B direction;

[0052] Figure 16 For the present invention, Figure 3 The blade surface view of the second finishing knife viewed from the B direction;

[0053] Figure 17 For the present invention, Figure 3 A schematic structural diagram of the cutter tooth assembly viewed from the B direction;

[0054] Figure 18 For the present invention Figure 17 A partial enlarged schematic diagram of point C shown in FIG;

[0055] Figure 19 For the present invention Figure 5 A local enlarged schematic diagram of point G is shown in FIG;

[0056] Figure 20 It is a schematic structural diagram of the under-tooth fine planer of the present invention;

[0057] Figure 21 This is a schematic diagram of the overall structure of the present invention during cutting;

[0058] Figure 22 This is a schematic diagram of the positional relationship between the cutter teeth and the object being cut during cutting according to the present invention;

[0059] Figure 23 The saw path diagram of the surface of the workpiece being cut in the present invention;

[0060] In the figure: cutter body 1, mounting hole 10, pre-cutting tooth seat 21, first roughing tooth seat 22, second roughing tooth seat 23, first finishing tooth seat 24, second finishing tooth seat 25, pre-cutting tooth 31, first roughing tooth 32, second roughing tooth 33, first finishing tooth 34, second finishing tooth 35, corundum saw grinding layer 40, window 50, vertical part 51, chip groove 52, arc part 53, tooth bottom planer 60, front tooth surface bevel grinding angle V-61, rear tooth surface concave angle VI-62, main cutting edge 63, net cutting width IV-64, middle Center angle I-71, center angle II-72, center angle III-73, center angle IV-74, center angle V-75, front angle I-76, front angle III-77, front angle III-78, front angle IV-79, front angle V-80, wedge angle I-81, wedge angle II-82, wedge angle III-83, wedge angle IV-84, wedge angle V-85, back angle I-86, back angle II-87, back angle III-88, back angle IV-89, back angle V-90, back tooth surface concave angle I-91, back tooth surface concave angle II-92, back tooth surface concave angle III-93, back tooth surface concave angle I V-94, rear tooth surface concave angle V-95, side edge concave angle I-96, side edge concave angle II-97, side edge concave angle III-98, side edge concave angle IV-99, side edge concave angle V-100, net cutting width I-101, net cutting width II-102, net cutting width III-103, front tooth surface bevel grinding angle I-104, front tooth surface bevel grinding angle II-105, front tooth surface bevel grinding angle III-106, front tooth surface bevel grinding angle IV-107, rear tooth surface bevel grinding angle I-108, rear tooth surface bevel grinding angle II-109, rear tooth surface bevel grinding angle III-110, rear tooth surface bevel grinding angle Angle IV-111, main edge chamfer I-112, main edge chamfer II-113, main edge chamfer III-114, main edge chamfer IV-115, main edge chamfer V-116, main edge chamfer cutting contour line I-117, main edge chamfer cutting contour line II-118, main edge chamfer cutting contour line III-119, main edge chamfer cutting contour line IV-120, main edge chamfer cutting contour line V-121, main edge chamfer cutting contour line VI-122, workpiece being cut -130, upper surface of workpiece being cut -131, lower surface of workpiece being cut -132, center axis surface of circular saw blade -133. DETAILED DESCRIPTION

[0061] The following is a combination of the embodiments of the present invention Figure 1-23 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0063] See also Figure 1-23 , embodiments of the present invention:

[0064] Example:

[0065] As shown in Figure 1-18: A diamond saw blade for processing veneer particleboard, comprising:

[0066] The main body 1 has a mounting hole 2 at its center and is circular in shape;

[0067] The corundum sawing and grinding layer 40 is in the shape of a circular belt and is fixedly arranged on the outer circular side wall of the main body 1;

[0068] The tooth assembly is fixedly connected to the corundum sawing and grinding layer 40, and the tooth assembly is distributed on the outer circular side wall of the corundum sawing and grinding layer 40 in a central symmetrical structure. There are 12 groups of tooth assemblies on the corundum sawing and grinding layer 40;

[0069] The cutter tooth assembly includes a cutter tooth seat and cutter teeth. One end of the cutter tooth seat is fixedly connected to the corundum saw grinding layer 40, and the other end is equipped with cutter teeth, which are made of diamond material.

[0070] The blade teeth include pre-cutting blade teeth 31, roughing blade teeth and finishing blade teeth. The pre-cutting blade teeth 31, roughing blade teeth and finishing blade teeth are installed on the blade tooth seat in sequence. The pre-cutting blade teeth 31 are set as one, the roughing blade teeth are set as two, and the finishing blade teeth are set as two; and the single blade teeth of the roughing blade teeth and the finishing blade teeth only cut one side of the saw path wall.

[0071] The main edge chamfer length of the pre-cutting tooth 31 accounts for 25% of the total main edge length, the main edge chamfer length of the roughing tooth accounts for 15% of the total main edge length, and the main edge chamfer length of the finishing tooth accounts for 7% of the total main edge length.

[0072] In this embodiment, the setting of the pre-cutting teeth 31, the roughing teeth and the finishing teeth can allocate most of the net cutting width to the pre-cutting teeth 31 that focuses on toughness, while the cutting resistance that the subsequent roughing teeth and the finishing teeth need to bear is reduced, which reduces the toughness requirements of the roughing teeth and the finishing teeth, and can design them with higher tooth sharpness, thereby avoiding the occurrence of defects such as pits and fuzzing, and improving the processing quality of the saw path wall. At the same time, during cutting, the initial cutting is performed by the roughing teeth, and the second finishing cutting is completed by the finishing teeth, so as to improve the cutting quality of the saw in this embodiment.

[0073] The corundum saw grinding layer 40 can be used to grind the saw path wall after secondary finishing during cutting, so that the uneven and multi-layered saw path wall of the veneer particleboard can achieve relatively consistent surface quality. This solves the problem of uneven saw path wall processing quality, namely, removes defects such as fuzzing, and improves the processing quality of the saw path wall.

[0074] The main edge chamfer setting of each tooth is as follows: specifically, the main edge chamfer I112 of the pre-cutting tooth 31 accounts for 25% of the total length of its main edge; the main edge chamfer II113 of the first roughing tooth 32 and the main edge chamfer III114 of the second roughing tooth 33 account for 15% of the total length of its main edge; the main edge chamfer IV115 of the first finishing tooth 34 and the main edge chamfer V116 of the second finishing tooth 35 account for 7% of the total length of its main edge. Different sizes of main edge chamfers can be designed for teeth with different functions, which can enhance the impact resistance of the tip of the blade. The impact ability is improved, and the possibility of chipping of the diamond teeth is reduced. Because the main edge chamfer is proportional to the toughness of the teeth and inversely proportional to the sharpness, the sharpness of the roughing and finishing teeth can be maintained as much as possible, reducing the possibility of edge chipping at the edge of the veneer particle board. Specifically, the pre-cutting tooth 31 with the largest cutting range and responsible for pre-cutting has the largest main edge chamfer, the roughing tooth with a moderate cutting amount and responsible for rough cutting has a moderate main edge chamfer, and the finishing tooth with the minimum cutting amount and responsible for fine cutting has the smallest main edge chamfer.

[0075] like Figure 1-18 As shown: the rough trimming teeth include a first rough trimming tooth 32 and a second rough trimming tooth 33, the first rough trimming tooth 32 is located between the pre-cutting tooth 31 and the second rough trimming tooth 33, and the cutting edges of the first rough trimming tooth 32 and the second rough trimming tooth 33 are arranged on opposite sides;

[0076] The finishing teeth include a first finishing tooth 34 and a second finishing tooth 35. The first finishing tooth 34 is located between the second roughing tooth 33 and the second finishing tooth 35. The cutting edges of the first finishing tooth 34 and the second finishing tooth 35 are also arranged on opposite sides, and the cutting edge of the first finishing tooth 34 is arranged on the same side as the cutting edge of the first roughing tooth 32.

[0077] Both sides of the pre-cutting teeth 31 are provided with cutting edges;

[0078] A window 50 is provided between the pre-cutting tooth 31 and the second finishing tooth 35 in the adjacent tooth assembly.

[0079] In this embodiment, specifically, the cutter tooth seat is divided into: a pre-cutting cutter tooth seat 21, a first roughing cutter tooth seat 22, a second roughing cutter tooth seat 23, a first fine-cutting cutter tooth 34 and a second fine-cutting cutter tooth seat 25. The above five cutter tooth seats are correspondingly installed with the following cutter teeth: a pre-cutting cutter tooth 31, a first roughing cutter tooth 32, a second roughing cutter tooth 33, a first fine-cutting cutter tooth 34 and a second fine-cutting cutter tooth 35, and the cutting edges of all adjacent cutter teeth of the same type are arranged on the opposite side, that is, the first roughing cutter tooth 32 is on one side of the saw path wall. The first rough trimming tooth 33 cuts the other side of the saw path wall, the first fine trimming tooth 34 cuts one side of the saw path wall, and has the same cutting surface as the first rough trimming tooth 32, and the second fine trimming tooth 35 cuts the other side of the saw path wall, and has the same cutting surface as the second rough trimming tooth 33. In summary, the pre-cutting tooth 31 has cutting edges on both sides, and cuts both sides of the saw path wall. The rough trimming, fine trimming, and under-tooth fine planing knives 60 all have only one cutting edge, and only cut one side of the saw path wall.

[0080] The window 50 designed in front of the pre-cutting teeth 31 can provide temporary storage space for the large amount of sawdust generated by pre-cutting, and can provide sufficient sawdust discharge space to avoid the adverse effects of sawdust accumulation on cutting, ensure the processing quality of the saw path wall, and ensure cutting stability.

[0081] like Figure 19 As shown: Window 50 includes:

[0082] A vertical portion 51 is located on the tooth seat near the end of the pre-cutting tooth 31. The extension line of the vertical portion 51 is located between the pre-cutting tooth 31 and the second finishing tooth 35 and does not intersect with the teeth.

[0083] A chip removal chamber 52 , one end of which is connected to the vertical portion 51 , and is located at an end of the vertical portion 51 close to the center of the main body 1 ;

[0084] The arc portion 53 is located on the end of the tooth seat close to the second finishing tooth 35, and one end of the arc portion 53 close to the center of the main body 1 is connected to the end of the discharge chute away from the vertical portion 51.

[0085] In this embodiment, it should be emphasized that the outer contour of the arc portion 53 is an arc as the name implies;

[0086] The setting of the position of the vertical portion 51 provides an assembly position for the under-tooth fine planer 60, which can make the assembly of the under-tooth fine planer 60 on the vertical portion easier. The chip discharge chamber 52 can speed up the discharge speed of sawdust and reduce the adverse effects of sawdust accumulation on cutting. The arc design of the arc portion 53 not only increases the size of the window 50 and the storage capacity of sawdust, but also ensures that the main body 1 has sufficient support capacity for the second fine-finishing tool tooth seat 25, ensuring the safety of cutting under high-pressure environment.

[0087] The extension line of the vertical portion 51 is located between the pre-cutting teeth 31 and the second finishing teeth 35 and does not intersect with the teeth. This can avoid possible obstruction of the pre-cutting teeth 31 and the second finishing teeth 35 during the assembly and unloading of the under-tooth planer 60, thereby improving the convenience of assembling the under-tooth planer 60.

[0088] like Figure 20 As shown: a tooth planer 60 is provided on the vertical portion 51, and the main cutting edges 63 of the tooth planer 60 in adjacent windows 50 are provided on opposite sides. The concave angle 62 of the rear tooth surface of the tooth planer 60 is 6°, and the net cutting width accounts for 2% of the total cutting width.

[0089] In this embodiment, a sub-tooth planer 60 is installed on the vertical portion 51 in the window 50. The presence of the sub-tooth planer 60 can not only improve the efficiency of collecting sawdust, but also reprocess the saw path wall after fine-tuning, thereby improving the processing quality of the saw path wall and enhancing the stability of the circular saw blade.

[0090] Specifically, a front tooth surface bevel grinding angle V61 of the under-tooth planer 60 is designed to be appropriately sized according to the specific function of the under-tooth planer 60. This not only improves the sharpness of the teeth of the under-tooth planer 60, but also accelerates the discharge speed of sawdust through the bevel design. At the same time, the size of the front tooth surface bevel grinding angle is proportional to the sharpness of the teeth and inversely proportional to the toughness of the teeth. Therefore, the under-tooth planer 60 has a larger front tooth surface bevel grinding angle 61 of 12°.

[0091] According to the specific function of the under-tooth planer 60, a concave angle VI62 of the rear tooth surface of the under-tooth planer 60 is designed to be of appropriate size. In this way, the friction between the side surface of the tooth and the saw path wall can be reduced to avoid clamping. At the same time, the size of the concave angle of the rear tooth surface is inversely proportional to the toughness. In order to avoid the saw clamping phenomenon of the under-tooth planer 60, a larger concave angle VI62 of the rear tooth surface of the under-tooth planer 60 is designed, and its size is 6°.

[0092] According to the specific function of the sub-tooth planer 60, a suitable net cutting width IV64 of the sub-tooth planer 60 is allocated to it, which is 2% of the total cutting width. The advantage of this design is that it can reduce the cutting force that the sub-tooth planer 60 needs to bear, so that the sharpness of the teeth can be further improved, avoiding the occurrence of pits and fuzzing, and improving the processing quality of the saw road wall.

[0093] In particular, due to the bevel grinding angle V61 design of the front tooth surface of the under-tooth planer 60, a single tooth only cuts one side of the saw path wall, so the main cutting edges 63 of the under-tooth planer 60 in adjacent windows are in opposite directions. The advantage of this design is that through the alternating design, the stability and consistency of the cutting process can be improved, the vibration and fluctuation generated by the tool during cutting can be reduced, and the processing quality of the saw path wall can be improved. At the same time, it should be emphasized that the left and right ends of the under-tooth planer 60 in this embodiment are of different thicknesses, that is, the left end is thick and the right end is thin. The opposite directions of the main cutting edges 63 of the under-tooth planer 60 in the above text mean that the under-tooth planer 60 is alternately arranged, so it can be understood that the under-tooth planer 60 in one of the windows 50 is thick at the left end and thin at the right end, then the under-tooth planer 60 in the adjacent window is thin at the left end and thick at the right end, and so on. Therefore, in order to avoid the situation where the under-tooth planer 60 in two adjacent windows 50 have the same shape, the number of windows 50 should be an even number, and the number of tooth assemblies should also be an even number.

[0094] like Figure 5-6 As shown, the center angle of the pre-cutting teeth 31 is 10°, the center angle of the roughing teeth is 6°, and the center angle of the fine-cutting teeth is 4°.

[0095] That is, the center angle I71 of the pre-cutting tooth 31 is 10°, the center angle II72 of the first rough trimming tooth 32 and the center angle III73 of the second rough trimming tooth 33 are both 6°, and the center angle IV74 of the first finishing tooth and the center angle V75 of the second finishing tooth 35 are both 4°. This arrangement can reasonably allocate the gaps between the teeth according to the different cutting amounts of different teeth, fully utilize the space while reducing the impact of sawdust on the cutting quality. Therefore, the pre-cutting tooth 31 with the largest cutting range and the largest cutting amount has the largest center angle, the first rough trimming tooth 32 and the second rough trimming tooth 33 with a moderate cutting range and a moderate cutting amount have a moderate center angle, and the first finishing tooth 34 and the second finishing tooth 35 with the smallest cutting range and the smallest cutting amount have the smallest center angle.

[0096] like Figure 3-4 As shown: the rake angle I76 of the pre-cutting tooth 31 is 5°, the rake angle of the roughing tooth is 10°, and the rake angle of the fine-cutting tooth is 20°;

[0097] The wedge angle I81 of the pre-cutting tooth 31 is 80°, the wedge angle of the roughing tooth is 75°, the wedge angle of the fine-cutting tooth is 65°, and the clearance angle is 5°.

[0098] That is, the rake angle I76 of the pre-cutting tooth 31 is 5°, the rake angle II77 of the first rough trimming tooth 32 and the rake angle III78 of the second rough trimming tooth 33 are both 10°, the rake angle IV79 of the first fine trimming tooth 34 and the rake angle V80 of the second fine trimming tooth 35 are both 20°; the wedge angle I81 of the pre-cutting tooth 31 is 80°, the wedge angle II82 of the first rough trimming tooth 32 and the wedge angle III83 of the second rough trimming tooth 33 are both 75°, the wedge angle IV84 of the first fine trimming tooth 34 and the wedge angle V85 of the second fine trimming tooth 35 are 65°, and the clearance angle I86 of the pre-cutting tooth 31, the clearance angle II87 of the first rough trimming tooth 32, the clearance angle III88 of the second trimming tooth, the clearance angle IV89 of the first fine trimming tooth 34, and the clearance angle V90 of the second fine trimming tooth 35 are all 5°.

[0099] In this embodiment, the rake angle parameter settings of each cutter tooth and the wedge angle parameter settings of each cutter tooth can specialize the functionality of the cutter tooth. The rake angle is proportional to the sharpness of the cutter tooth, and the wedge angle is proportional to the toughness of the cutter tooth. Therefore, according to the different cutting amounts of different cutter teeth, different bending strengths and sharpness are designed for the cutter teeth. Therefore, the rake angle I of the pre-cutting cutter tooth 31, which has the greatest requirement for cutter tooth toughness, is minimized and the wedge angle is maximized. The rake angle and wedge angle of the roughing cutter tooth, which has a moderate requirement for cutter tooth toughness, are moderate. The rake angle and wedge angle of the finishing cutter tooth, which has the smallest requirement for cutter tooth toughness, are maximized and the wedge angle is minimized.

[0100] like Figure 7-16 As shown: the concave angle I91 of the rear tooth surface of the pre-cutting tooth 31 is 2°, the concave angle of the rear tooth surface of the rough-trimming tooth is 4°, and the concave angle of the rear tooth surface of the fine-trimming tooth is 6°;

[0101] The side edge concave angle I96 of the pre-cutting tooth 31 is 2°, the side edge concave angle of the roughing tooth is 5°, and the side edge concave angle of the finishing tooth is 10°.

[0102] Specifically in this embodiment, the rear tooth surface concave angle I91 of the pre-cutting tooth 31 is 2°, the rear tooth surface concave angle II92 of the first rough trimming tooth 32 and the rear tooth surface concave angle III93 of the second rough trimming tooth 33 are both 4°, the rear tooth surface concave angle IV94 of the first fine trimming tooth 34 and the rear tooth surface concave angle V95 of the second fine trimming tooth 35 are both 6°, and the side edge concave angle I96 of the pre-cutting tooth 31 is 2°, the side edge concave angle II97 of the first rough trimming tooth 32 and the side edge concave angle III98 of the second rough trimming tooth 33 are both 5°, and the side edge concave angle IV99 of the first fine trimming tooth 34 and the side edge concave angle V100 of the second fine trimming tooth 35 are both 10°.

[0103] In this embodiment, the parameters for the rear concave angle of each tooth are set to reduce friction between the tooth rear face and the saw path wall. The rear concave angle is inversely proportional to toughness. Therefore, the pre-cutting tooth 31, which requires the highest toughness, has the smallest rear concave angle; the roughing tooth, which requires moderate toughness, has a moderate rear concave angle; and the finishing tooth, which requires the lowest toughness, has the largest rear concave angle.

[0104] The side edge concave angle parameter setting of each tooth is to design different sizes of side edge concave angles for different teeth with different cutting amounts. This can reduce the friction between the non-cutting part of the tooth root and the saw path wall, and reduce the possibility of the plate clamping the circular saw blade. Because the size of the side edge concave angle is inversely proportional to the toughness of the tooth, the pre-cutting tooth 31 with the highest requirement for tooth toughness has the smallest side edge concave angle, the roughing tooth with moderate requirement for tooth toughness has a moderate side edge concave angle, and the finishing tooth with the lowest requirement for tooth toughness has the largest side edge concave angle.

[0105] like Figure 17-18 As shown, the net cutting width I101 of the pre-cutting teeth 31 accounts for 85% of the total cutting width, the net cutting width II102 of the rough trimming teeth accounts for 10% of the total cutting width, and the net cutting width III103 of the fine trimming teeth accounts for 3% of the total cutting width.

[0106] In this embodiment, the parameter setting of the net cutting width of each tooth accounts for the total cutting width. According to the different functions of different teeth, appropriate net cutting width is allocated to the teeth, which can improve the processing quality of the fine-cutting teeth. While increasing the pre-cutting range, the cutting range of rough trimming and fine trimming is reduced, so that the rough trimming and fine trimming teeth can focus on the processing quality of the saw path wall. The increase in the cutting amount of the teeth will reduce its processing quality. Therefore, the pre-cutting teeth 31 have the largest net cutting width, the rough trimming teeth have a moderate net cutting width, and the fine trimming teeth have the smallest net cutting width.

[0107] like Figure 7-16 As shown: the bevel grinding angle I89 of the front tooth surface of the roughing cutter is 7°, and the bevel grinding angle II90 of the front tooth surface of the fine cutting cutter is 12°;

[0108] The rear tooth surface bevel grinding angle I91 of the roughing cutter teeth is 5°, and the rear tooth surface bevel grinding angle II92 of the fine cutting cutter teeth is 10°.

[0109] In this embodiment, the front tooth surface bevel grinding angle I104 of the first roughing cutter tooth 32 and the front tooth surface bevel grinding angle II105 of the second roughing cutter tooth 33 are both 7°, the front tooth surface bevel grinding angle III106 of the first finishing cutter tooth 34 and the front tooth surface bevel grinding angle IV107 of the second roughing cutter tooth 33 are both 12°, and the rear tooth surface bevel grinding angle I108 of the first roughing cutter tooth 32 and the rear tooth surface bevel grinding angle II109 of the second roughing cutter tooth 33 are both 5°, and the rear tooth surface bevel grinding angle III110 of the first finishing cutter tooth 34 and the rear tooth surface bevel grinding angle IV111 of the second finishing cutter tooth 35 are both 10°.

[0110] The parameter setting of the front tooth surface bevel grinding angle of each cutter tooth adds and designs different front tooth surface bevel grinding angles according to the different functions of different cutter teeth, and reasonably distributes the properties of the cutter teeth, which can improve the sharpness of the roughing and finishing cutter teeth. The increase in the sharpness of the cutter teeth will reduce their toughness. Therefore, the roughing cutter teeth that focus on cutting volume and require more tooth toughness have a smaller front tooth surface bevel grinding angle, and the finishing cutter teeth that focus on cutting quality and require more tooth sharpness have a larger front tooth surface bevel grinding angle.

[0111] For the parameter setting of the back tooth surface bevel grinding angle of each tooth, different back tooth surface bevel grinding angles are added and designed according to the different functions of different teeth, so as to further reduce unnecessary cutting on the roughing and finishing teeth, so that they focus more on the processing quality, that is, it can reduce the friction between the non-cutting part of the roughing and finishing tooth heads and the front edge of the saw path. The back tooth surface bevel grinding angle is inversely proportional to the toughness. Therefore, the roughing teeth with a larger cutting volume and more emphasis on the toughness of the teeth have a smaller back tooth surface bevel grinding angle, and the finishing teeth with a smaller cutting volume and more emphasis on the sharpness of the teeth have a larger back tooth surface bevel grinding angle.

[0112] like Figure 21-23 As shown: the main edge chamfer cutting contour line of the pre-cutting tooth 31, the roughing tooth and the finishing tooth is a continuous straight line.

[0113] In this embodiment, specifically, the left main edge chamfer cutting contour line I117 of the pre-cutting tooth 31, the main edge chamfer cutting contour line III119 of the first rough trimming tooth 32, and the main edge chamfer cutting contour line V121 of the first fine trimming tooth 34 are a continuous straight line, while the right main edge chamfer cutting contour line II118 of the pre-cutting tooth 31, the main edge chamfer cutting contour line IV120 of the second rough trimming tooth 33, and the main edge chamfer cutting contour line VI122 of the second fine trimming tooth 35 are a continuous straight line. This design can avoid edge chipping, pits, and fuzzing caused by cutting misalignment and fiber stretching.

[0114] In addition, in this embodiment, the vertical distance between the upper and lower surfaces of the workpiece being cut and the central axis of the circular saw blade is limited in range, so that the vertical distance between the upper surface of the workpiece being cut and the central axis of the circular saw blade is not greater than the cutting radius of the under-tooth planer 60. The vertical distance between the lower surface of the workpiece being cut and the central axis of the circular saw blade should be such that during the cutting process, the side edge of the teeth of the circular saw blade preferentially contacts the workpiece being cut. The upper limit is set to prevent the under-tooth planer 60 from cutting only a part of the saw path wall, and the lower limit is set to allow the side edge of the teeth to preferentially contact the workpiece, thereby reducing vibration during the cutting process and improving the processing quality of the saw path wall.

[0115] In order to achieve the above-mentioned contents, specifically: the main blade cutting circle mentioned below refers to the rotation path circle of the main blade of the cutter tooth when the circular saw blade rotates one circle, and its radius is the main blade cutting circle radius.

[0116] The feed speed is V, the circular saw blade speed is r, and the feed amount d per 1° of the tooth is 25V / 9r; the main edge cutting circle radius of the pre-cutting tooth 31 is R1, and the chamfering depths are l1, l2, and so on in the order of the pre-cutting tooth 31 and the rough trimming tooth. Then the main edge cutting circle radius of the first rough trimming tooth 32 should be R1-6d-l1, the main edge cutting circle radius of the second rough trimming tooth 33 is R1-12d-l1, the main edge cutting circle radius of the first finishing tooth 34 is R1-16d-l1-l2, and the main edge cutting circle radius of the second finishing tooth 35 is R1-20d-l1-l2. That is, by constraining the main edge cutting circle of the tooth, the main edge chamfer cutting contour line is made a continuous straight line, which makes the cutting of the five diamond teeth smoother, further reducing the possibility of edge chipping of the veneer particleboard at the edge.

[0117] Specific Figure 23 In the figure, there is a central angle of 6° between the pre-cutting tooth 31 and the first roughing tooth 32. When the circular saw blade is cutting the workpiece, the workpiece is always moving forward and the circular saw blade is also rotating. Therefore, when the pre-cutting tooth 31 contacts the workpiece surface, the workpiece will move forward a distance before the first roughing tooth 32 contacts the workpiece surface. Why is the gap between two adjacent teeth contacting the workpiece and the distance the workpiece moves forward? Figure 17 The tooth contour is clear and Figure 23 Reasons for smooth cutting contour

[0118] Of course, we only consider the surface here, not the cutting contour of the workpiece after the teeth contact the workpiece, because this design is only to ensure the surface processing quality of the workpiece. As long as the cutting contour line of the teeth is smooth on the surface of the workpiece, it will be fine.

[0119] In addition, in order to achieve a smooth cutting contour line on the workpiece surface, the chamfers of all teeth should be 45°. This makes it easy to express the depth of the chamfer and to propose an implementation plan.

[0120] Furthermore, the vertical distances between the upper and lower surfaces 131 and 132 of the workpiece being cut and the central axis 133 of the circular saw blade are subject to a range limit. Specifically, given a circular saw blade diameter of D and a finishing tooth rake angle of γ, the vertical distance H1 between the upper and lower surfaces 131 and the central axis 133 of the circular saw blade should not exceed the main cutting radius of the under-tooth planer cutter 60, and the vertical distance H2 between the lower surface 132 and the central axis 133 of the circular saw blade should satisfy the requirement of H2 ≥ D sinγ / 2. The upper limit is intended to prevent the under-tooth planer cutter 60 from only cutting a portion of the saw path wall, thereby ensuring the quality of secondary finishing. The lower limit is intended to ensure that the side edges of the diamond teeth preferentially contact the workpiece during machining. Simply put, the main cutting radius R1 of the pre-cutting tooth 31, the known chamfer depths of different teeth, and the calculated tooth feed per 1° are used to control the main cutting radius of the roughing and finishing teeth to achieve a smooth saw path on the workpiece.

[0121] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0122] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A diamond saw blade for processing veneer particleboard, characterized in that: include: A knife body (1), wherein a mounting hole (2) is provided at the center of the knife body (1), and the knife body (1) is circular; A corundum sawing and grinding layer (40), the corundum sawing and grinding layer (40) is in the shape of a circular belt and is fixedly arranged on the outer circular side wall of the knife body (1); A blade tooth assembly, wherein the blade tooth assembly is fixedly connected to the corundum sawing and grinding layer (40), and the blade tooth assembly is distributed on the outer circular side wall of the corundum sawing and grinding layer (40) in a central symmetrical structure, and 9-15 groups of blade tooth assemblies are provided on the corundum sawing and grinding layer (40); The cutter tooth assembly comprises a cutter tooth seat and cutter teeth, one end of the cutter tooth seat is fixedly connected to the corundum sawing layer (40), and the other end is provided with cutter teeth, and the cutter teeth are made of diamond material; The blade teeth include pre-cutting blade teeth (31), rough trimming blade teeth and finishing blade teeth, and the pre-cutting blade teeth (31), rough trimming blade teeth and finishing blade teeth are sequentially mounted on the blade tooth seat, the pre-cutting blade teeth (31) are at least one, the rough trimming blade teeth are at least two, and the finishing blade teeth are at least two; The length of the main edge chamfer I (93) of the pre-cutting tooth (31) accounts for 20 to 30% of the total length of the main edge, the length of the main edge chamfer II (94) of the roughing tooth accounts for 10 to 20% of the total length of the main edge, and the length of the main edge chamfer III (95) of the finishing tooth accounts for 5 to 10% of the total length of the main edge; The net cutting width I (101) of the pre-cutting teeth (31) accounts for 80-90% of the total cutting width, the net cutting width II (102) of the roughing teeth accounts for 5-10% of the total cutting width, and the net cutting width III (103) of the finishing teeth accounts for 1-3% of the total cutting width.

2. The diamond saw blade for processing veneer particleboard according to claim 1, characterized in that: The coarse trimming teeth at least include a first coarse trimming tooth (32) and a second coarse trimming tooth (33), wherein the first coarse trimming tooth (32) is located between the pre-cutting tooth (31) and the second coarse trimming tooth (33), and the cutting edges of the first coarse trimming tooth (32) and the second coarse trimming tooth (33) are arranged on opposite sides; The finishing teeth at least include a first finishing tooth (34) and a second finishing tooth (35), the first finishing tooth (34) is located between the second roughing tooth (33) and the second finishing tooth (35), the cutting edges of the first finishing tooth (34) and the second finishing tooth (35) are also arranged on different sides, and the cutting edge of the first finishing tooth (34) is arranged on the same side as the cutting edge of the first roughing tooth (32); Both sides of the pre-cutting teeth (31) are provided with cutting edges; A window (50) is provided between the pre-cutting tooth (31) and the second finishing tooth (35) in the adjacent tooth assembly, and each group of teeth only includes one window (50).

3. The diamond saw blade for processing veneer particleboard according to claim 2, characterized in that: The window (50) comprises: A vertical portion (51), the vertical portion (51) is located on the tooth seat near the end of the pre-cutting tooth (31), and an extension line of the vertical portion (51) is located between the pre-cutting tooth (31) and the second finishing tooth (35), and does not intersect with the tooth; A chip removal groove (52), one end of which is connected to the vertical portion (51), and the chip removal groove (52) is located at one end of the vertical portion (51) close to the center of the cutter body (1); The arc portion (53) is located on the tooth seat near the end of the second finishing tooth (35), and one end of the arc portion (53) close to the center of the cutter body (1) is connected to one end of the discharge groove away from the vertical portion (51).

4. The diamond saw blade for processing veneer particleboard according to claim 3, characterized in that: A tooth planer (60) is provided on the vertical portion (51), and the main cutting edges (63) of the tooth planers (60) in adjacent windows (50) are arranged on opposite sides. The concave angle VI (62) of the rear tooth surface of the tooth planer (60) is 5 to 7 degrees, and the net cutting width IV of the tooth planer (60) accounts for 1 to 2% of the total cutting width.

5. A diamond saw blade for processing veneer particleboard according to claim 1, 2, 3 or 4, characterized in that: The center angle of the pre-cutting teeth (31) is 8-12 degrees, the center angle of the roughing teeth is 5-8 degrees, and the center angle of the finishing teeth is 3-6 degrees.

6. The diamond saw blade for processing veneer particleboard according to claim 5, characterized in that: The rake angle I (76) of the pre-cutting teeth (31) is 3 to 7 degrees, the rake angle of the roughing teeth is 8 to 15 degrees, and the rake angle of the finishing teeth is 17 to 25 degrees; The wedge angle I (81) of the pre-cutting teeth (31) is 78-82 degrees, the wedge angle of the roughing teeth is 73-77 degrees, the wedge angle of the finishing teeth is 63-67 degrees, and the back angle is 3-7 degrees.

7. The diamond saw blade for processing veneer particleboard according to claim 6, characterized in that: The concave angle I (91) of the rear tooth surface of the pre-cutting tooth (31) is 1 to 3 degrees, the concave angle of the rear tooth surface of the roughing tooth is 3 to 5 degrees, and the concave angle of the rear tooth surface of the finishing tooth is 5 to 7 degrees; The side edge concave angle I (96) of the pre-cutting teeth (31) is 1 to 3 degrees, the side edge concave angle of the roughing teeth is 3 to 7 degrees, and the side edge concave angle of the finishing teeth is 7 to 12 degrees.

8. The diamond saw blade for processing veneer particleboard according to claim 1, characterized in that: The bevel grinding angle of the front tooth surface of the roughing cutter teeth is 5 to 10 degrees, and the bevel grinding angle of the front tooth surface of the finishing cutter teeth is 10 to 15 degrees; The rear tooth surface bevel grinding angle of the roughing cutter teeth is 3 to 7 degrees, and the rear tooth surface bevel grinding angle of the fine cutting cutter teeth is 7 to 12 degrees.

9. The diamond saw blade for processing veneer particleboard according to claim 8, characterized in that: The main edge chamfer cutting contour lines of the pre-cutting teeth (31), the roughing teeth and the finishing teeth are a continuous straight line.

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