High-strength diamond saw blade and preparation equipment and preparation method thereof

Abstract

The invention relates to the technical field of diamond powder compacting and sintering, and provides a high-strength diamond saw blade and preparation equipment and a preparation method thereof.The diamond saw blade comprises a base body and a tool bit, the tool bit comprises a first cutting area and a second cutting area, and the first cutting area is located between the second cutting area and the base body; the particle thickness of the first cutting area is greater than that of the second cutting area; the first cutting area and the second cutting area comprise binding agent raw materials and diamond in percentage by mass, and the binding agent raw materials comprise 0.1%-0.5% of cerium chloride, 25%-35% of copper, 35%-45% of iron, 7%-10% of tin, 5%-10% of nickel, 10%-15% of alloy powder and the balance diamond. In this way, cutting is conducted through the first cutting area with the larger particle size under the opening of the second cutting area, the situation that after the diamond saw blade cuts ceramic or granite or other hard stones, the edges are cracked is reduced, and therefore the applicability of the diamond saw blade is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of compaction and sintering of diamond powder, and in particular to a high-strength diamond saw blade and a preparation device and a preparation method thereof. Background Art

[0002] Diamond saw blade is a cutting tool, widely used in the processing of hard and brittle materials such as concrete, refractory materials, stone, ceramics, etc. Diamond saw blade mainly consists of two parts: base and cutter head. The base is the main supporting part of the bonded cutter head. The cutter head is the part that cuts during use. The cutter head will be consumed continuously during use, while the base will not. The cutter head can cut because it contains diamond. Diamond is the hardest substance. It rubs in the cutter head to cut the object being processed.

[0003] Diamond saw blades have the advantages of high hardness and good wear resistance. However, when using diamond saw blades to process hard stones such as ceramics or even granite, traditional diamond saw blades are prone to serious edge cracking after cutting hard stones such as ceramics or granite, resulting in the applicability of diamond saw blades to be improved. Summary of the invention

[0004] To solve the above problems, the present invention provides a high-strength diamond saw blade and its preparation equipment and method, which realizes opening cutting of the fine-grain diamond cutting area through two diamond particle cutting areas with different coarseness and fineness. After the opening is formed, it is used for cutting of the coarse-grain diamond cutting area to reduce the situation of edge bursting caused by cutting deep into the ceramic, thereby improving the applicability of the diamond saw blade.

[0005] A first aspect of the present disclosure provides a high-strength diamond saw blade, comprising a substrate and a cutter head, wherein the cutter head comprises a first cutting area and a second cutting area, wherein the first cutting area is located between the second cutting area and the substrate, and the particle coarseness of the first cutting area is greater than the particle coarseness of the second cutting area; the material mass percentage of the first cutting area and the second cutting area comprises a binder raw material and diamond, wherein the binder raw material comprises 0.1%-0.5% cerium chloride, 25%-35% copper, 35%-45% iron, 7%-10% tin, 5%-10% nickel, 10%-15% alloy powder, and the remainder is diamond content.

[0006] Such arrangement enables the blade head portion of the diamond saw blade to have two cutting areas, and the second cutting area is the first to come into contact with hard stones such as ceramics and granite, so as to make a small opening in the hard stones such as ceramics and granite. As the cutting progresses, the first cutting area of ​​the diamond saw blade performs a large-scale cutting. By cutting with the first cutting area having a larger particle size under the opening of the second cutting area, it helps to reduce the edge bursting of the diamond saw blade after cutting hard stones such as ceramics or granite, thereby improving the applicability of the diamond saw blade.

[0007] The second aspect of the present disclosure provides a high-strength diamond saw blade preparation device, which is used to prepare the high-strength diamond saw blade described in the first aspect, including a molding device, which is used to mold diamond and binder raw materials on a substrate under high pressure to form a cutter head having a first cutting area and a second cutting area; a hot pressing sintering device, which is used to sinter the cutter head and the substrate to form a diamond saw blade embryo; a processing and grinding device, which is used to sharpen the sintered diamond saw blade embryo and then grind it to form a diamond saw blade; a detection device, which is used to perform torque performance detection on the sharpened diamond saw blade; the molding device includes: a die-casting table, on which a die-casting groove for placing the substrate is provided; a die-casting mechanism, which includes A ram and a first driving member, wherein the ram is arranged at the upper end of the frame and slides in the vertical direction, and the first driving member is used to drive the ram to slide down into the die-casting groove; a discharge mechanism, including a slide seat and a discharge barrel located on the slide seat and a second driving member, the slide seat is slidably arranged on the die-casting table, the discharge barrel is slidably arranged between the ram and the die-casting table, and the discharge barrel is used to discharge diamond and binder raw materials into the die-casting groove; the second driving member is used to drive the discharge barrel to discharge materials evenly along the circumference of the die-casting groove; a demoulding mechanism is arranged in the die-casting table and located below the die-casting groove, and is used to extend into the die-casting groove to eject the formed substrate and the cutter head.

[0008] In this way, the first driving member drives the pressure head to press the diamond and binder raw materials onto the substrate in the die-casting groove, so that the diamond and binder raw materials are combined on the substrate under high pressure to form a cutter head, and under the discharge of the discharge barrel, the diamond and binder raw materials with larger particle size fall into the first cutting area, and the diamond and binder raw materials with smaller particle size fall into the second cutting area, so as to facilitate pressing to form a cutter head with a first cutting area and a second cutting area; then the combined substrate and cutter head are hot-pressed and sintered to firmly connect the cutter head and the substrate through physical changes to form a diamond saw blade blank, so as to facilitate sharpening and grinding of the diamond saw blade blank, thereby completing the preparation of a diamond saw blade with two cutting areas.

[0009] In some embodiments, the discharge barrel includes an inner barrel, a middle barrel and an outer barrel which are sequentially arranged from the inside to the outside, the inner barrel is used to connect with the second driving member, the middle barrel is used to hold diamond and binder raw materials with larger particle size, and the outer barrel is used to hold diamond and binder raw materials with smaller particle size. A plurality of connecting rods are arranged between the outer barrel and the middle barrel, and a plurality of connecting rods are also arranged between the middle barrel and the inner barrel. The area between the outer barrel and the middle barrel corresponds to the outer edge of the die-casting groove, and the area between the middle barrel and the inner barrel corresponds to the inner edge of the die-casting groove. The outer edge and the inner edge of the die-casting groove are both located at the edge of the substrate.

[0010] With such arrangement, when the diamond and binder raw materials are discharged into the die-casting tank, the second driving member is activated to lower the diamond and binder raw materials with larger particle size in the middle barrel into the die-casting tank, and lower the diamond and binder raw materials with smaller particle size in the outer barrel into the die-casting tank, so as to form a circle of diamond and binder raw materials with larger particle size in the axial direction of the substrate and then form another circle of diamond and binder raw materials with smaller particle size, so as to form a cutter head with a first cutting area and a second cutting area on the substrate after die-casting.

[0011] In some embodiments, the second driving member includes: a fixed frame, which is arranged on the slide seat; a discharge motor, which is arranged on the fixed frame and coaxially connected with a gear, and the gear is rotatably arranged on the upper surface of the die-casting table; a gear plate is rotatably connected to the bottom of the discharge barrel, and the gear plate is engaged with the gear, and the gear plate rotates on the upper surface of the die-casting table, and a discharge port is opened on the gear plate, and the discharge port exposes part of the space between the outer barrel and the middle barrel, and exposes part of the space between the middle barrel and the inner barrel, and the upper end of the inner barrel is connected to the fixed frame, and the bottom of the outer barrel and the middle barrel are fixed with baffles, and the baffles are used to block the discharge port.

[0012] With such arrangement, when diamond and binder raw materials of different particle sizes are lowered into the die-casting tank, the discharge motor starts, driving the gear to rotate, and the gear drives the toothed disc to rotate. After the toothed disc rotates, the discharge port and the baffle are staggered, and the diamond and binder raw materials in the outer barrel and the middle barrel are lowered into the die-casting tank, so as to form a circle of diamond and binder raw materials with larger particle sizes and a circle of diamond and binder raw materials with smaller particle sizes at the edge of the substrate, thereby realizing automatic feeding of the diamond and binder raw materials into the die-casting tank.

[0013] In some embodiments, a stopper and a fixed block are provided on the outer wall of the outer barrel, the stopper is rotatably arranged, the fixed block abuts against the stopper, a push block is provided on the upper surface of the toothed disc outside the outer barrel, the push block abuts against the side of the stopper away from the fixed block, a first torsion spring is provided at the rotational connection between the inner barrel and the fixed frame, the direction in which the push block abuts against the stopper is the direction to overcome the torsion of the first torsion spring, and the rotational connection between the inner barrel and the fixed frame has a rotational resistance, and the rotational speed of the toothed disc is greater than the rotational speed of the inner barrel under the torsion of the first torsion spring.

[0014] In this way, when the gear drives the toothed disc to rotate for discharging, the discharging motor drives the toothed disc to rotate, the toothed disc drives the push block to move toward the stop block, the push block pushes the stop block to drive the outer barrel, the middle barrel and the inner barrel to rotate, at this time the discharging port and the baffle rotate together, and no discharging is performed, so that the inner barrel overcomes the torsion of the first torsion spring; then the discharging motor reverses, driving the push block away from the stop block, at this time, due to the rotation resistance at the rotation connection between the inner barrel and the fixed frame, the rotation speed of the toothed disc is greater than the rotation speed of the outer barrel, the middle barrel and the inner barrel, so the discharging port and the baffle are staggered, and at this time the discharging port is not in the initial position where the toothed disc does not rotate. As the toothed disc rotates, the outer barrel, the middle barrel and the inner barrel return to their initial positions under the torsion of the first torsion spring, while the toothed disc is still rotating until the toothed disc drives the push block to rotate to the side of the stop block facing the fixed block, and the push block pushes the stop block to rotate clockwise, so that the stop block is separated from the fixed block, so that the toothed disc can drive the push block to return to the initial position after passing the stop block. In this way, the toothed disc rotates first and then rotates in the opposite direction, which helps to discharge the diamond and binder raw materials along the outer barrel through the discharge port to the surrounding of the substrate, so as to achieve uniform discharge of the diamond and binder raw materials into the die-casting tank.

[0015] In some embodiments, a sliding groove for the slide seat to slide is provided on the die-casting table, and force transmission rods are rotatably connected to both sides of the slide seat. The end of the force transmission rod away from the slide seat is rotatably set on the pressure head. The force transmission rod is used to drive the slide seat to slide in the horizontal direction as the pressure head slides up and down, and the side of the slide seat away from the pressure head has a spring, and the end of the spring away from the slide seat is connected to the groove wall of the sliding groove.

[0016] With such arrangement, when the diamond and binder raw materials are die-cast on the substrate, the first driving member drives the pressure head to slide down, and the pressure head drives the slide seat to slide in the direction away from the die-casting groove through the force transmission rod, so as to drive the discharge barrel away from the die-casting groove to expose the die-casting groove with the material placed, so that the diamond and binder raw materials can be formed into a cutting head on the substrate after the pressure head is pressed down; until the first driving member drives the pressure head to slide up, under the action of the spring force, the pressure head drives the slide seat to slide in the direction close to the die-casting groove through the force transmission rod, so that the discharge barrel is located above the die-casting groove again, which helps the second driving member to drive the discharge barrel to discharge the material.

[0017] In some embodiments, the demolding mechanism includes: a demolding seat, which is arranged in the die-casting table and slides under the die-casting groove; a demolding rod, which is arranged on the demolding seat and slides in the die-casting groove, and when the demolding seat is in a natural state, the top of the demolding rod forms the bottom of the die-casting groove; a transmission assembly, which is arranged on the die-casting table and is used to transmit the sliding power of the sliding seat to the demolding seat, and drive the demolding seat to slide up through the demolding rod to push the pressed substrate and the cutter head away from the die-casting groove.

[0018] With such arrangement, when the pressure head slides up and drives the slide seat to slide toward the die-casting groove through the force transmission rod, the slide seat drives the demolding seat to slide up through the transmission assembly, so that the demolding rod lifts up and ejects the die-cast cutter head and base from the die-casting groove, thereby realizing the demolding of the cutter head and base.

[0019] In some embodiments, the transmission assembly includes: a transmission rod, which is arranged at one end of the slide away from the force transmission rod; a transmission roller, which is arranged at one end of the transmission rod away from the slide, and the transmission roller is arranged in the die-casting table for sliding along the horizontal direction, and slides under the demolding seat; a top block, which is arranged on the peripheral wall of the transmission roller and is located below the demolding seat, and is used to abut against the bottom of the demolding seat; the transmission roller is connected to the transmission rod, and the bottom of the demolding seat is inclined, and the top wall of the top block is in an arc shape that is compatible with the bottom wall of the demolding seat, and when the top block slides toward the direction of the demolding seat, the top block abuts against the bottom wall of the demolding seat to drive the demolding rod to slide up.

[0020] With such arrangement, when the die-cast cutter head and base body are demolded, the first driving member drives the cutter head to slide upward, at which time the slide seat slides toward the die-casting groove, and drives the discharge barrel to slide toward the die-casting groove, and the slide seat drives the transmission rod to slide downward toward the demolding seat, and then drives the transmission roller to slide toward the bottom of the demolding seat; until the discharge barrel is not yet located above the die-casting groove, the transmission roller drives the top block to contact the bottom of the demolding seat, so as to push the demolding seat to slide upward and then drive the ejector rod to lift the formed cutter head and base body to complete the demolding.

[0021] In some embodiments, the drive roller is rotatably connected to the drive rod, a limit block is fixed at one end of the drive rod connected to the drive roller, a stop block is fixed on the radial end face of the drive roller, the stop block abuts against the side of the limit block away from the slide seat, the limit block abuts against the stop block, and is used to limit the top block from rotating in the opposite direction after abutting against the demolding seat, and a second torsion spring is provided at the rotational connection between the drive rod and the drive roller, the second torsion spring is used for allowing the top block to slide and abut against the side of the demolding seat away from the slide seat and reset after overcoming the torque, so as to abut the stop block against the limit block.

[0022] With such arrangement, when the slide seat continues to slide and drives the discharge barrel to be located above the die casting groove, the transmission roller drives the top block to slide over the demoulding seat, and the demoulding seat slides down due to gravity, driving the top rod to slide down to form a part of the bottom of the die casting groove, and in this process, the limit block abuts against the abutment block to limit the counterclockwise rotation of the transmission roller so that the top block rotates toward the slide seat. When the pressure head slides down and drives the slide seat away from the die casting groove, the transmission rod drives the transmission roller to slide toward the slide seat with the slide seat, so that the straight edge of the top rod abuts against the bottom of the demoulding seat, and after the bottom reaction force of the demoulding seat is applied to the top block, the top block overcomes the torsion of the second torsion spring and drives the transmission roller to rotate clockwise, so that the top block can slide back to the initial position from the bottom of the demoulding seat together with the transmission roller after rotating in the direction away from the slide seat, that is, the top block is located on the side of the demoulding seat facing the slide seat, so as to facilitate automatic demoulding during the rising process after the pressure head is pressed down, and the demoulding seat, the transmission roller and the top block are automatically reset when the pressure head is pressed down.

[0023] A third aspect of the present disclosure provides a method for preparing a high-strength diamond saw blade, using a high-strength diamond preparation device as described in the first aspect, the method comprising: The diamond and the binder raw materials are molded on the substrate under high pressure to form a cutter head having a first cutting area and a second cutting area; Sintering the cutter head and the matrix to form a diamond saw blade embryo; The sintered diamond saw blade blank is sharpened and then ground to form a diamond saw blade; Testing the torque performance of sharpened diamond saw blades.

[0024] The technical effects brought about by any possible implementation of the third aspect can refer to the technical effects brought about by the above-mentioned second aspect, which will not be repeated here.

[0025] Compared with the prior art, the present invention has the following advantages: 1. Cutting in the first cutting area with a larger particle size under the opening of the second cutting area helps to reduce the edge cracking of the diamond saw blade after cutting hard stones such as ceramics or granite, thereby improving the applicability of the diamond saw blade.

[0026] 2. By arranging the outer barrel, the middle barrel and the inner barrel, a circle of diamond and binder raw materials with larger particle size is formed in the axial direction of the substrate, and then a circle of diamond and binder raw materials with smaller particle size is formed, so as to form a cutter head with a first cutting area and a second cutting area on the substrate after die-casting.

[0027] 3. The toothed disc rotates first and then rotates in the opposite direction, which helps to discharge the diamond and binder raw materials along the outer barrel through the discharge port around the base, so as to achieve uniform discharge of the diamond and binder raw materials into the die-casting tank.

[0028] 4. After the pressure head is pressed down, it will automatically demould during the rising process. When the pressure head is pressed down, the demoulding seat, transmission roller and top block will automatically reset.

[0029] Other features and advantages of the present disclosure will be described in the following description, and partly become apparent from the description, or be understood by implementing the present disclosure. The purpose and other advantages of the present disclosure can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A structural diagram of a high-strength diamond saw blade provided in this embodiment; Figure 2 The overall block diagram of the molding device provided in this embodiment; Figure 3 A cross-sectional schematic diagram of a molding device provided in this embodiment; Figure 4 A schematic diagram of the structure of the demoulding mechanism provided in this embodiment; Figure 5 A cross-sectional schematic diagram of die-casting of the die-casting mechanism provided in this embodiment; Figure 6 The embodiment provided Figure 4 A part of the enlarged schematic diagram; Figure 7 This is a flow chart of the method for preparing a diamond saw blade provided in this embodiment. Description of Reference Numerals

[0032] 1. Base; 11. Cutter head; 111. First cutting area; 112. Second cutting area; 2. Die-casting table; 21. Die-casting groove; 22. Pillar; 23. Guide column; 24. Support plate; 25. Slide groove; 26. Demolding groove; 27. Through groove; 3. Die-casting mechanism; 31. Press head; 32. First driving member; 33. Die-casting plate; 4. Discharging mechanism; 41. Sliding seat; 411. Force transmission rod; 412. Spring; 42. Discharging barrel; 421. Inner barrel; 422. Middle barrel; 423. Outer barrel; 424, connecting rod; 425, toothed disc; 4251, push block; 426, discharge port; 427, baffle; 428, block; 429, fixed block; 43, second driving member; 431, fixed frame; 432, discharge motor; 433, gear; 44, first torsion spring; 5, demoulding mechanism; 51, demoulding seat; 511, wedge block; 52, demoulding rod; 53, transmission assembly; 531, transmission rod; 532, transmission roller; 533, top block; 534, limit block; 535, stop block. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0034] See also Figure 1 , Figure 1 The structural diagram of a high-strength diamond saw blade provided in this embodiment, the diamond saw blade includes a substrate 1 and a cutter head 11. The cutter head 11 includes a first cutting area 111 and a second cutting area 112, the first cutting area 111 is located between the second cutting area 112 and the substrate 1, and the particle coarseness of the first cutting area 111 is greater than the particle coarseness of the second cutting area 112; the material mass percentage of the first cutting area 111 and the second cutting area 112 includes a binder raw material and diamond, and the binder raw material includes 0.1%-0.5% cerium chloride, 25%-35% copper, 35%-45% iron, 7%-10% tin, 5%-10% nickel, 10%-15% alloy powder, and the rest is diamond content.

[0035] In this embodiment, the width of the first cutting area 111 in the radial direction of the substrate 1 is greater than the width of the second cutting area 112 in the radial direction of the substrate 1. The first cutting area 111 and the second cutting area 112 on the cutter head 11 also have tooth patterns to increase the cutting strength of the cutter head 11.

[0036] Based on the above-mentioned high-strength diamond saw blade, this embodiment also provides a high-strength diamond saw blade preparation device corresponding to the above-mentioned diamond saw blade. The preparation equipment includes a molding device, a hot pressing and sintering device, a processing and grinding device, and a testing device. The molding device is used to mold the diamond and binder raw materials on the substrate 1 under high pressure to form a cutter head 11 having a first cutting area 111 and a second cutting area 112. The hot pressing and sintering device is used to sinter the cutter head 11 with the substrate 1 to form a diamond saw blade embryo. The processing and grinding device is used to sharpen the sintered diamond saw blade embryo and then grind it to form a diamond saw blade. The testing equipment is used to perform torque performance testing on the sharpened diamond saw blade.

[0037] The molding equipment such as Figure 2 and Figure 3 As shown, Figure 2 This is an overall block diagram of the molding equipment provided in this embodiment. Figure 3 A schematic cross-sectional view of the molding device provided in this embodiment. The molding device includes a die-casting table 2, a die-casting mechanism 3, a discharge mechanism 4 and a demoulding mechanism 5. A die-casting groove 21 for placing a substrate is provided on the die-casting table 2. The die-casting mechanism 3 includes a pressure head 31 and a first driving member 32. The pressure head 31 is arranged at the upper end of the frame and slides in the vertical direction. The first driving member 32 is used to drive the pressure head 31 to slide down into the die-casting groove 21. The discharge mechanism 4 includes a slide 41 and a discharge barrel 42 and a second driving member 43 located on the slide 41. The slide 41 is slidably arranged on the die-casting table 2, and the discharge barrel 42 is slidably arranged between the pressure head 31 and the die-casting table 2. The discharge barrel 42 is used to lower the diamond and binder raw materials into the die-casting groove 21; the second driving member 43 is used to drive the discharge barrel 42 to discharge the material evenly along the circumference of the die-casting groove 21. The demoulding mechanism 5 is arranged in the die-casting table 2 and is located below the die-casting groove 21 , and is used for extending into the die-casting groove 21 to eject the formed matrix and the cutter head.

[0038] In this embodiment, there is a support column 22 below the die-casting table 2 to support the die-casting table 2. The die-casting mechanism 3, the discharge mechanism 4 and the demoulding mechanism 5 are all located on the die-casting table 2. Four guide columns 23 are provided on the die-casting table 2, and a support plate 24 is fixed to the top of the four guide columns 23. The die-casting mechanism 3 also includes a die-casting plate 33 sliding on the guide columns 23, and a pressure head 31 is arranged on the side of the die-casting plate 33 away from the first driving member 32. The first driving member 32 can be a cylinder, which is fixed to the side of the support plate 24 away from the die-casting plate 33. The cylinder piston rod slides through the support plate 24 to drive the die-casting plate 33 to slide up and down, thereby driving the pressure head 31 to slide up and down.

[0039] The pressing head 31 slides in the vertical direction and can slide into the die casting groove 21 to press the diamond and the binder raw materials onto the substrate. The discharge barrel 42 is located on the slide 41 and can slide into the top of the die casting groove 21 with the slide 41 when the pressing head 31 slides up, so as to put the diamond and the binder raw materials into the die casting groove 21. The discharge barrel 42 can also slide away from the top of the die casting groove 21 with the slide 41 when the pressing head 31 slides down, so as to allow the pressing head 31 to normally lower the die casting mold.

[0040] In some embodiments, see Figure 2 and Figure 3 The discharge barrel 42 includes an inner barrel 421, a middle barrel 422 and an outer barrel 423 which are sequentially sleeved from the inside to the outside. The inner barrel 421 is used to connect with the second driving member 43, the middle barrel 422 is used to hold diamond and binder raw materials with larger particle size, and the outer barrel 423 is used to hold diamond and binder raw materials with smaller particle size. A plurality of connecting rods 424 are arranged between the outer barrel 423 and the middle barrel 422, and a plurality of connecting rods 424 are also arranged between the middle barrel 422 and the inner barrel 421. The area between the outer barrel 423 and the middle barrel 422 corresponds to the outer edge of the die-casting groove 21, and the area between the middle barrel 422 and the inner barrel 421 corresponds to the inner edge of the die-casting groove 21. Both the outer edge and the inner edge of the die-casting groove 21 are located at the edge of the substrate.

[0041] In this embodiment, the inner barrel 421 is hollow, and the upper ends of the outer barrel 423 and the middle barrel 422 are gradually expanded, so that the diamond and binder raw materials with different particle sizes can be placed in the outer barrel 423 and the middle barrel 422 respectively. The connecting rods 424 are arranged at intervals, so that the diamond and binder raw materials with different particle sizes can be smoothly released from the bottom of the outer barrel 423 and the middle barrel 422. It should be noted that the circumference of the outer barrel 423 is compatible with the circumference of the die-casting tank 21, so that the diamond and binder raw materials with smaller particle sizes in the outer barrel 423 can fall on the edge of the die-casting tank 21.

[0042] In some embodiments, the second driving member 43 includes a fixed frame 431 and a discharge motor 432. The fixed frame 431 is arranged on the slide 41. The discharge motor 432 is arranged on the fixed frame 431 and is coaxially connected with a gear 433, which is rotatably arranged on the upper surface of the die-casting table 2. The bottom of the discharge barrel 42 is rotatably connected with a toothed disc 425, which meshes with the gear 433, and the toothed disc 425 rotates on the upper surface of the die-casting table 2. The toothed disc 425 is provided with a discharge port 426, which exposes part of the space between the outer barrel 423 and the middle barrel 422, and exposes part of the space between the middle barrel 422 and the inner barrel 421. The upper end of the inner barrel 421 is connected to the fixed frame 431, and the bottom of the outer barrel 423 and the middle barrel 422 is fixed with a baffle 427, which is used to block the discharge port 426.

[0043] In this embodiment, the fixed frame 431 is fixed on the slide 41 and slides with the slide 41. The fixed frame 431 includes four fixed rods, and the discharge motor 432 is fixed between two of the fixed rods. The other fixed rod extends out and is connected to the top of the inner barrel 421 to connect and support the inner barrel 421, the middle barrel 422 and the outer barrel 423. The bottom of the outer barrel 423 is rotatably connected with a toothed disc 425, which serves as the bottom of the entire discharge barrel 42 to seal the outer barrel 423, the middle barrel 422 and the inner barrel 421. However, the discharge port 426 on the toothed disc 425 is a through port, which is only connected to the bottom of the outer barrel 423 and the middle barrel 422, so that the diamond and binder raw materials in the outer barrel 423 and the middle barrel 422 can be released into the die casting tank 21 for one circle when the toothed disc 425 rotates one circle. The baffle 427 is fixed to the inner wall of the outer barrel 423 and the outer wall of the inner barrel 421, and the bottom of the middle barrel 422 is recessed to give way to the baffle 427, so that after the baffle 427 blocks part of the bottom of the outer barrel 423 and the middle barrel 422, the bottom wall of the baffle 427 is flush with the bottom wall of the outer barrel 423 and the inner barrel 421. In addition, the baffle 427 is larger than the size of the discharge port 426, so that after the toothed disc 425 rotates and rotates relative to the discharge barrel 42, the discharge port 426 and the baffle 427 are staggered to discharge the material. When the baffle 427 blocks the discharge port 426, it helps the slide 41 drive the gear 433 and the toothed disc 425 to slide in and out between the pressure head 31 and the die casting table 2.

[0044] It should be noted that the bottom of the toothed disc 425 slides against the upper surface of the die-casting table 2, which helps to compact and flatten the diamond and binder raw materials that fall into the die-casting tank 21. The output shaft of the discharge motor 432 drives the gear 433 downward to rotate on the slide 41, and then the rotation of the gear 433 drives the toothed disc 425 to rotate, so that the toothed disc 425 rotates one circle and discharges the material evenly into the die-casting tank 21.

[0045] In some embodiments, see Figure 3 and Figure 4 , Figure 4 Schematic diagram of the structure of the demoulding mechanism 5 provided in this embodiment. A stopper 428 and a fixed block 429 are provided on the outer wall of the outer barrel 423. The stopper 428 is rotatably arranged, and the fixed block 429 abuts against the stopper 428. A push block 4251 is provided on the upper surface of the toothed disc 425 located outside the outer barrel 423, and the push block 4251 abuts against the side of the stopper 428 away from the fixed block 429. A first torsion spring 44 is provided at the rotational connection between the inner barrel 421 and the fixed frame 431. The direction in which the push block 4251 abuts against the stopper 428 is the direction in which the torsion of the first torsion spring 44 is overcome, and there is a rotational resistance at the rotational connection between the inner barrel 421 and the fixed frame 431. The rotation speed of the toothed disc 425 is greater than the rotation speed of the inner barrel 421 under the torsion of the first torsion spring 44.

[0046] In this embodiment, the rotation axis of the stopper 428 is located at the end of the stopper 428 away from the pusher 4251, and the fixing block 429 also abuts against the end of the stopper 428 away from the pusher 4251. The pusher 4251 is fixed to the upper surface of the toothed disc 425 extending out of the outer barrel 423, and the stopper 428 and the fixing block 429 are located on the outer surface of the outer barrel 423. Figure 4 It can be seen that the toothed disc 425 drives the push block 4251 to rotate in the direction of the stop block 428, and the push block 4251 can press the stop block 428 against the fixed block 429, thereby driving the entire discharge barrel 42 to rotate. However, the inner barrel 421 is rotatably connected to a fixed rod on the fixed frame 431, and has a first torsion spring 44. The rotational connection between the inner barrel 421 and the fixed rod has a rotational resistance, so that after the push block 4251 pushes the stop block 428 to drive the discharge barrel 42 to rotate, the toothed disc 425 reverses to drive the push block 4251 to disengage from the stop block 428, and the rotation speed of the toothed disc 425 is greater than the rotation speed of the discharge barrel 42, so that the discharge port 426 and the baffle 427 are staggered until the discharge port 426 has a circle of diamond and binder raw materials in the die-casting groove 21 after the toothed disc 425 rotates one circle, avoiding the obstruction of the baffle 427 to the discharge circle.

[0047] In some embodiments, reference Figure 2 and Figure 3 The die casting table 2 is provided with a slide groove 25 for the slide seat 41 to slide. The two sides of the slide seat 41 are rotatably connected with force transmission rods 411, and one end of the force transmission rod 411 away from the slide seat 41 is rotatably arranged on the pressure head 31. The force transmission rod 411 is used to drive the slide seat 41 to slide in the horizontal direction as the pressure head 31 slides up and down, and the side of the slide seat 41 away from the pressure head 31 has a spring 412, and one end of the spring 412 away from the slide seat 41 is connected to the groove wall of the slide groove 25.

[0048] In this embodiment, refer to Figure 3 and Figure 5 , Figure 5 The cross-sectional schematic diagram of the die-casting of the die-casting mechanism 3 provided in this embodiment, the upper end of the force transmission rod 411 is hinged to the side wall of the die-casting plate 33, and the lower end of the force transmission rod 411 is hinged to the end of the slide 41 away from the discharge barrel 42. The spring 412 acts on the slide 41 to facilitate the upward movement of the die-casting plate 33. When the force transmission rod 411 drives the slide 41 to slide toward the die-casting groove 21, the elastic force also provides power for the slide 41 to facilitate the die-casting plate 33 to drive the pressure head 31 to slide upward, and the force transmission rod 411 and the spring 412 drive the slide 41 to slide toward the die-casting groove 21, so as to drive the discharge barrel 42 to be located above the die-casting groove 21. When the die-casting plate 33 drives the ram 31 to move downward, the force transmission rod 411 and the compression spring 412 drive the slide seat 41 away from the die-casting groove 21, and then drives the discharge barrel 42 away from the die-casting groove 21, so as to expose the die-casting groove 21 and then press the ram 31 downward.

[0049] In some embodiments, see Figure 3 and Figure 4 The demoulding mechanism 5 includes a demoulding seat 51, a demoulding rod 52 and a transmission assembly 53. The demoulding seat 51 is arranged in the die casting table 2 and slides under the die casting groove 21. The demoulding rod 52 is arranged on the demoulding seat 51 and slides in the die casting groove 21. When the demoulding seat 51 is in a natural state, the top of the demoulding rod 52 forms the groove bottom of the die casting groove 21. The transmission assembly 53 is arranged on the die casting table 2 and is used to transmit the sliding power of the slide 41 to the demoulding seat 51, and drives the demoulding seat 51 to slide upward through the demoulding rod 52 to push the pressed substrate and the cutter head away from the die casting groove 21.

[0050] In this embodiment, the demolding seat 51 slides in the die casting table 2 along the vertical direction. The demolding seat 51 is in the shape of a disk, and a wedge block 511 is connected to the bottom of the demolding seat 51. The die casting table 2 is provided with a demolding groove 26 for the demolding seat 51 to slide, and a through groove 27 for the wedge block 511 to slide up and down. The through groove 27 is connected to the demolding groove 26, so that when the demolding seat 51 is located at the bottom of the demolding groove 26, the top of the demolding rod 52 forms the bottom of the die casting groove 21 to maintain the flatness of the bottom of the die casting groove 21, so that the demolding seat 51 and the demolding rod 52 are driven upward by the transmission assembly 53 to push the wedge block 511, so as to demold the die-cast cutter head and the base from the die casting groove 21.

[0051] In some embodiments, the transmission assembly 53 includes a transmission rod 531, a transmission roller 532 and a top block 533. The transmission rod 531 is disposed at one end of the slide 41 away from the force transmission rod 411. The transmission roller 532 is disposed at one end of the transmission rod 531 away from the slide 41, and the transmission roller 532 is slidably disposed in the die casting table 2 along the horizontal direction, and slides below the demolding seat 51. The top block 533 is disposed on the peripheral wall of the transmission roller 532 and is located below the demolding seat 51, and is used to abut against the bottom of the demolding seat 51. The transmission roller 532 is connected to the transmission rod 531, and the bottom of the demolding seat 51 is tilted. The top wall of the top block 533 is in an arc shape that matches the bottom wall of the demolding seat 51. When the top block 533 slides toward the demolding seat 51, the top block 533 abuts against the bottom wall of the demolding seat 51 to drive the demolding rod 52 to slide upward.

[0052] In this embodiment, see Figure 4 and Figure 6 , Figure 6 The embodiment provided Figure 4The enlarged schematic diagram of part A in FIG. There are two transmission rods 531 and they are fixed to the side wall of the slide 41 near the discharge barrel 42. They slide along the horizontal direction with the slide 41. The two ends of the transmission roller 532 are respectively connected to the two transmission rods 531, and the rotation axis of the transmission rod 531 is perpendicular to the sliding direction of the transmission rod 531. The transmission rod 531 slides in the slide groove 25 with the slide 41. The through groove 27 is located below the demoulding seat 51. The transmission rod 531, the transmission roller 532 and the top block 533 all slide in the through groove 27. The through groove 27 is connected with the demolding groove 26, so that the wedge block 511 can be located in the through groove 27 and in the demolding groove 26 at the same time, and the wedge block 511 is also located on the sliding path of the top block 533 sliding along the driving roller 532, so that it is convenient for the slide seat 41 to drive the discharge barrel 42 to slide toward the die-casting groove 21. However, when the discharge barrel 42 has not yet covered the die-casting groove 21, the top block 533 pushes the wedge block 511 to slide up, thereby driving the demolding seat 51 and the demolding rod 52 to slide up, so as to demold the die-cast cutter head and the base.

[0053] In some embodiments, the transmission roller 532 is rotatably connected to the transmission rod 531, and a limit block 534 is fixed to one end of the transmission rod 531 connected to the transmission roller 532. A stop block 535 is fixed to the radial end surface of the transmission roller 532, and the stop block 535 abuts against the side of the limit block 534 away from the slide 41. The limit block 534 is abutted against the stop block 535 to limit the top block 533 from rotating in the opposite direction after abutting against the demolding seat 51. A second torsion spring is provided at the rotation connection between the transmission rod 531 and the transmission roller 532. The second torsion spring is used to allow the top block 533 to slide against the side of the demolding seat 51 away from the slide 41 and reset after overcoming the torque, so that the stop block 535 and the limit block 534 abut against each other.

[0054] In this embodiment, the limiting block 534 is located on the side wall of the transmission rod 531. Under the torque of the second torsion spring, the transmission roller 532 drives the abutting block 535 to abut against the limiting block 534, so that the transmission roller 532 can only rotate clockwise and cannot rotate counterclockwise, which helps the transmission roller 532 drive the top block 533 to slide and abut against the wedge block 511 to lift the demolding seat 51 and the demolding rod 52. When the sliding seat 41 drives the material feeding bucket 42 to slide to cover the die-casting groove 21, the transmission rod 531 drives the transmission roller 532 and the top block 533 to slide over the wedge block 511. At this time, the top block 533 disengages from the wedge block 511, and the demolding seat 51 and the demolding rod 52 slide down. The demolding rod 52 forms the bottom of the die-casting groove 21 to facilitate placing the diamond and the binder raw material into the die-casting groove 21. After die-casting is completed, the sliding seat 41 drives the material feeding bucket 42 away from the die-casting groove 21. At this time, the transmission rod 531 drives the transmission roller 532 and the top block 533 to slide towards the wedge block 511. At this time, the straight side wall of the top block 533 abuts against the inclined lower end of the wedge block 511, so that the reaction force of the wedge block 511 acts on the top block 533, driving the top block 533 to drive the transmission roller 532 to overcome the torque of the second torsion spring and realize the clockwise rotation of the transmission roller 532. Until the transmission roller 532 drives the top block 533 to slide over the wedge block 511, so that the top block 533 is located on the side of the wedge block 511 facing the sliding seat 41, realizing the reset of the transmission roller 532 and the top block 533.

[0055] Based on the above-mentioned high-strength diamond saw blade preparation equipment, the embodiments of the present disclosure also provide a high-strength diamond saw blade preparation method corresponding to the above equipment, as Figure 7 shown, Figure 7 is the flowchart of the diamond saw blade preparation method provided in this embodiment. The method includes: S100. Form a cutting head with a first cutting area and a second cutting area by molding diamond and binder raw materials on a substrate under high pressure.

[0056] S200. Sinter the cutting head and the substrate to form a diamond saw blade blank.

[0057] S300. Grind the sintered diamond saw blade blank after edge opening to form a diamond saw blade.

[0058] S400. Perform torque performance testing on the edge-opened diamond saw blade.

[0059] Although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A high-strength diamond saw blade, comprising a base and a cutter head, characterized in that: The cutter head includes a first cutting area and a second cutting area, the first cutting area is located between the second cutting area and the substrate, and the particle coarseness of the first cutting area is greater than that of the second cutting area; the material mass percentage of the first cutting area and the second cutting area includes binder raw materials and diamond, and the binder raw materials include 0.1%-0.5% cerium chloride, 25%-35% copper, 35%-45% iron, 7%-10% tin, 5%-10% nickel, 10%-15% alloy powder, and the rest is diamond content.

2. A high-strength diamond saw blade preparation device, used for preparing the high-strength diamond saw blade according to claim 1, characterized in that: The preparation equipment comprises: A molding device, used for molding diamond and binder raw materials on a substrate under high pressure to form a cutter head having a first cutting area and a second cutting area; Hot pressing sintering equipment, used for sintering the cutter head and the matrix to form a diamond saw blade embryo; Processing and grinding equipment, used to sharpen and grind the sintered diamond saw blade blank to form a diamond saw blade; Testing equipment for testing the torque performance of sharpened diamond saw blades; The molding equipment comprises: A die-casting table, wherein the die-casting table is provided with a die-casting groove for placing the substrate; The die-casting mechanism comprises a pressing head and a first driving member, wherein the pressing head is arranged at the upper end of the frame and slides in a vertical direction, and the first driving member is used to drive the pressing head to slide down into the die-casting tank; The discharge mechanism comprises a slide seat, a discharge barrel located on the slide seat, and a second driving member, wherein the slide seat is slidably arranged on the die-casting table, the discharge barrel is slidably arranged between the pressure head and the die-casting table, and the discharge barrel is used to discharge the diamond and binder raw materials into the die-casting tank; the second driving member is used to drive the discharge barrel to discharge the materials uniformly along the circumference of the die-casting tank; The demoulding mechanism is arranged in the die-casting table and located below the die-casting groove, and is used for extending into the die-casting groove to eject the formed matrix and the cutter head.

3. The method according to claim 2, characterized in that The discharge barrel includes an inner barrel, a middle barrel and an outer barrel which are sequentially sleeved from the inside to the outside, the inner barrel is used to be connected to the second driving member, the middle barrel is used to hold diamond and binder raw materials with larger particle size, and the outer barrel is used to hold diamond and binder raw materials with smaller particle size. A plurality of connecting rods are arranged between the outer barrel and the middle barrel, and a plurality of connecting rods are also arranged between the middle barrel and the inner barrel. The area between the outer barrel and the middle barrel corresponds to the outer edge of the die-casting groove, and the area between the middle barrel and the inner barrel corresponds to the inner edge of the die-casting groove. The outer edge and the inner edge of the die-casting groove are both located at the edge of the substrate.

4. The method according to claim 3, characterized in that The second driving member comprises: A fixing frame, arranged on the sliding seat; A discharge motor is arranged on the fixed frame and is coaxially connected with a gear, and the gear is rotatably arranged on the upper surface of the die-casting table; The bottom of the discharge barrel is rotatably connected with a toothed disc, which meshes with the gear and rotates on the upper surface of the die-casting table. The toothed disc is provided with a discharge port, which exposes part of the space between the outer barrel and the middle barrel and part of the space between the middle barrel and the inner barrel. The upper end of the inner barrel is connected to the fixing frame, and baffles are fixed to the bottom of the outer barrel and the middle barrel, and the baffles are used to block the discharge port.

5. The method according to claim 4, characterized in that A stopper and a fixed block are provided on the outer wall of the outer barrel, the stopper is rotatably arranged, the fixed block abuts against the stopper, a push block is provided on the upper surface of the toothed disc outside the outer barrel, the push block abuts against the side of the stopper away from the fixed block, a first torsion spring is provided at the rotational connection between the inner barrel and the fixed frame, the direction in which the push block abuts against the stopper is the direction to overcome the torsion of the first torsion spring, and the rotational connection between the inner barrel and the fixed frame has a rotational resistance, and the rotational speed of the toothed disc is greater than the rotational speed of the inner barrel under the torsion of the first torsion spring.

6. The method according to claim 2, characterized in that The die-casting table is provided with a sliding groove for the sliding seat, and the two sides of the sliding seat are rotatably connected with force transmission rods, and the end of the force transmission rod away from the sliding seat is rotatably set on the pressure head. The force transmission rod is used to drive the sliding seat to slide in the horizontal direction as the pressure head slides up and down, and the side of the sliding seat away from the pressure head is provided with a spring, and the end of the spring away from the sliding seat is connected to the groove wall of the sliding groove.

7. The method according to claim 6, characterized in that: The demoulding mechanism comprises: A demoulding seat is arranged in the die-casting table and slides under the die-casting tank; A demoulding rod is arranged on the demoulding seat and slides in the die-casting groove, and when the demoulding seat is in a natural state, the top of the demoulding rod forms the bottom of the die-casting groove; The transmission assembly is arranged on the die-casting table and is used for transmitting the sliding power of the slide seat to the demoulding seat, and drives the demoulding seat to slide upward through the demoulding rod to push the pressed matrix and the cutter head away from the die-casting groove.

8. The method according to claim 7, characterized in that: The transmission assembly comprises: A transmission rod, arranged at one end of the slide away from the force transmission rod; A transmission roller is arranged at one end of the transmission rod away from the slide seat, and the transmission roller is arranged in the die casting table in a horizontal sliding direction and slides below the demoulding seat; A top block, arranged on the peripheral wall of the driving roller and located below the demoulding seat, and used for abutting against the bottom of the demoulding seat; The transmission roller is connected to the transmission rod, the bottom of the demoulding seat is inclined, the top wall of the top block is in an arc shape that matches the bottom wall of the demoulding seat, and when the top block slides toward the demoulding seat, the top block pushes against the bottom wall of the demoulding seat to drive the demoulding rod to slide upward.

9. The method according to claim 8, characterized in that: The driving roller is rotatably connected to the driving rod, a limiting block is fixed at one end of the driving rod connected to the driving roller, a stop block is fixed on the radial end surface of the driving roller, the stop block abuts against the side of the limit block away from the slide seat, the limit block abuts against the stop block, and is used to limit the reverse rotation of the top block after abutting against the demolding seat, and a second torsion spring is provided at the rotation connection between the driving rod and the driving roller, the second torsion spring is used for allowing the top block to slide and abut against the side of the demolding seat away from the slide seat and reset after overcoming the torque, so as to abut the stop block against the limit block.

10. A method for preparing a high-strength diamond saw blade, using a high-strength diamond preparation device as described in claims 2-9, characterized in that: The method comprises: The diamond and the binder raw materials are molded on the substrate under high pressure to form a cutter head having a first cutting area and a second cutting area; Sintering the cutter head and the matrix to form a diamond saw blade embryo; The sintered diamond saw blade blank is sharpened and then ground to form a diamond saw blade; Testing the torque performance of sharpened diamond saw blades.

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