Diamond circular saw blade sintering die

Abstract

The utility model discloses a diamond circular saw blade sintering die, and belongs to the technical field of saw blade production. The mold comprises a lifting appliance; the lifting appliance comprises a bearing seat, a positioning column which is perpendicular to the bearing seat and is fixedly mounted on the bearing seat, and a pressing block for pressing a mold; the mold comprises a mold groove, a cutting layer cavity and a through hole; and a saw blade. The diamond circular saw blade sintering mold is made of graphite materials, deformation in the sintering process can be effectively reduced, meanwhile, the structure of the annular cutting layer cavity is considered, heat conduction can be optimized, the temperature uniformity in the mold can be improved, and therefore the combination degree of diamond particles is improved, the cutting performance of a saw blade is improved, and the service life of the saw blade is prolonged. Meanwhile, the wavy section design is adopted, the sections of the upper end and the lower end are wavy and are gradually meshed in a staggered mode along with hot pressing, and the die spacing can be effectively and naturally adjusted.

Description

Technical Field

[0001] This utility model relates to the field of saw blade production technology, and in particular to a sintering mold for diamond circular saw blades. Background Technology

[0002] Diamond circular saw blades are widely used in the cutting and processing of materials such as building materials, stone, and concrete. Due to their excellent cutting performance and wear resistance, they have become an important tool in the industry. The manufacturing process of diamond circular saw blades typically involves the sintering of diamond particles, and the performance of the die directly affects the quality and service life of the final product.

[0003] Existing diamond circular saw blade sintering molds mainly use traditional metal molds. Due to the thermal expansion characteristics of the material, the mold is prone to heating deformation during sintering. This deformation not only affects the geometric accuracy of the mold but also causes stress concentration inside the mold, increasing the risk of crack formation. In addition, existing molds often exhibit uneven temperature distribution during the sintering process. This uneven temperature distribution leads to inconsistent bonding of diamond particles during sintering, resulting in a significant reduction in the saw blade's cutting performance and service life. Uneven distribution of diamond particles also affects the saw blade's balance, increasing vibration and noise during cutting, thus impacting the user experience. To address these issues, we propose a new diamond circular saw blade sintering mold. Utility Model Content

[0004] The purpose of this invention is to provide a sintering mold for diamond circular saw blades, so as to solve the problems of existing saw blade molds being prone to cracking due to heating deformation during the sintering process, as well as uneven sintering.

[0005] To solve the above-mentioned technical problems, this utility model provides a diamond circular saw blade sintering mold, including a lifting device; the lifting device includes a load-bearing base, a positioning column perpendicular to the load-bearing base and fixedly installed on the load-bearing base, and a pressure block for pressing the mold;

[0006] The mold includes a mold groove, an annular cutting layer chamber disposed on the outer edge of the bottom surface of the mold groove, and a through hole penetrating the center of the mold;

[0007] A saw blade, which is placed in a mold groove.

[0008] Preferably, there is a pair of mold slots, which are mirror images of each other on the upper and lower surfaces of the mold.

[0009] Preferably, the mold material is graphite.

[0010] Preferably, the outer ring wall of the mold has a wavy cross-section, and the upper and lower molds are arranged in an overlapping longitudinal arrangement, with the upper and lower wavy cross-sections interlocking when they overlap.

[0011] Preferably, the mold further includes multiple anti-crack grooves formed on its edge to release internal stress.

[0012] Preferably, the positioning pin extends out of the through hole and passes sequentially through multiple molds that are fitted together vertically.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The diamond circular saw blade sintering mold of this utility model is made of graphite material, which can effectively reduce deformation during the sintering process. At the same time, the structure of the annular cutting layer chamber is taken into consideration, which can optimize heat conduction, improve the temperature uniformity inside the mold, thereby improving the bonding degree of diamond particles and improving the cutting performance and service life of the saw blade.

[0015] 2. The diamond circular saw blade sintering mold of this utility model can effectively and naturally adjust the mold spacing through the wave-shaped cross-section design. When the thickness of the saw blade blank before sintering is greater than the thickness after forming, the thickness of the saw blade gradually decreases as sintering proceeds. The cross-sections at both ends of the saw blade will gradually interlock in a wave-like pattern until the two cross-sections are in contact, and the hot pressing is completed. This method can improve the balance of the saw blade under hot pressing. At the same time, the edge of the mold is provided with anti-crack grooves. Combined with the wave-shaped cross-section shape, it can effectively release the internal stress of the mold, reduce the risk of crack formation, and improve the durability and reliability of the mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a diamond circular saw blade sintering mold provided by this utility model;

[0017] Figure 2 This is an installation diagram of a diamond circular saw blade sintering mold provided by this utility model;

[0018] In the diagram: 1. Lifting device; 101. Support seat; 102. Positioning column; 103. Pressure block; 2. Mold; 201. Mold groove; 202. Cutting layer chamber; 203. Through hole; 204. Wavy cross section; 205. Crack-resistant groove; 3. Saw blade. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0022] This utility model provides a sintering mold for diamond circular saw blades. Please refer to [link / reference]. Figures 1-2 The system includes a lifting device 1; the lifting device 1 includes a load-bearing base 101, a positioning column 102 perpendicular to the load-bearing base 101 and fixedly installed on the load-bearing base 101, and a pressure block 103 for pressing the mold; a mold 2, the mold 2 includes a mold groove 201, an annular cutting layer chamber 202 disposed on the outer edge of the bottom surface of the mold groove 201, and a through hole 203 penetrating the center of the mold 2; and a saw blade 3, the saw blade 3 being placed inside the mold groove 201.

[0023] The mold grooves 201 are in pairs and are mirror images of each other on the upper and lower surfaces of the mold 2. The mold 2 is made of graphite. The outer ring wall of the mold 2 has a wavy cross section 204. The upper and lower molds 2 are arranged longitudinally in an overlapping manner, and the upper and lower wavy cross sections 204 mesh with each other when they overlap. The mold 2 also includes multiple anti-crack grooves 205 opened on its edge to release internal stress. The positioning pins 102 pass through the through holes 203 and pass through multiple molds 2 that are fitted together.

[0024] It should be noted that the load-bearing base 101 is the basic structure of the mold, responsible for supporting the weight of the entire mold 2 and saw blade 3 overlapping, ensuring the stability of the mold 2 during the sintering process. A through hole is opened at the center of the surface of the load-bearing base 101 for fixing the positioning post 102. The positioning post 102 is fixedly installed perpendicular to the load-bearing base 101, and its main function is to accurately position the mold 2 and saw blade 3, ensuring that each part of the mold 2 remains in a fixed position during the sintering process. The positioning post 102 protrudes from the mold through hole 203, ensuring the alignment accuracy between the upper and lower molds 2. The load-bearing base 101 and the positioning post 102 have sufficient strength to withstand the load under high temperature and high pressure conditions.

[0025] Preferably, the pressure block 103 is used to press the mold 2 and the saw blade 3 together to ensure that the various parts of the mold 2 remain tightly bound during the sintering process, thereby improving the uniformity of sintering and the quality of the saw blade 3. Considering the need for quick loading, unloading and adjustment, the pressure block 103 is designed with a U-shaped structure.

[0026] Mold 2 is made of graphite material. Graphite can maintain the stability of physical and chemical properties in high-temperature environments and is not easily deformed or degraded. This allows the graphite mold to withstand high temperatures during the sintering process without affecting the shape and performance of the mold, thereby improving the sintering quality. At the same time, graphite has excellent thermal conductivity, which can evenly conduct the temperature to the surface of the saw blade 3, avoid local overheating, and improve the overall performance of the saw blade 3.

[0027] Preferably, the mold groove 201 is the main part used to place the diamond saw blade 3. Its design should ensure that the saw blade 3 does not shift during the sintering process. The shape and depth of the mold groove 201 need to be designed according to the specifications of the saw blade to ensure good matching. The saw blade blank includes a base layer and a cutting layer. The cutting layer is the working part of the saw blade 3, which is usually formed by cold pressing diamond particles with a metal binder (such as copper, nickel, etc.). Because the thickness of the blank will gradually decrease during the hot pressing process, and because the cross sections of the upper and lower saw blades are interlocked in a wave shape, the depth of the mold groove 201 should be less than 1 / 2 of the thickness of the base layer of the blank and greater than 1 / 2 of the thickness of the base layer of the formed saw blade. The specific depth is determined according to the deformation of the formed saw blade. The annular cutting layer chamber 202 matches the cutting layer. The through hole 203 is opened through the center of the mold. The diameter of the through hole 203 should match the cross section diameter of the positioning post 102.

[0028] Better, such as Figure 2 As shown, the anti-crack grooves 205 are evenly distributed in a ring on the outer ring of the mold 2, specifically eight in total. Combined with the wavy cross-sectional shape design, they can effectively release the internal stress generated by the mold 2 during hot pressing, reduce the risk of crack formation, and improve the durability and reliability of the mold.

[0029] In summary, the diamond circular saw blade sintering mold of this invention is made of graphite material, which can effectively reduce deformation during the sintering process. It also incorporates a ring-shaped cutting layer chamber structure, which optimizes heat conduction and improves the temperature uniformity inside the mold, thereby improving the bonding of diamond particles and enhancing the cutting performance and service life of the saw blade. Furthermore, the mold employs a wavy cross-section design, which can effectively and naturally adjust the mold spacing. Since the thickness of the saw blade blank before sintering is greater than its thickness after forming, as sintering progresses, the saw blade thickness gradually decreases, and the cross-sections at both ends of the saw blade gradually interlock in a wavy pattern until they are fully bonded, completing the hot pressing process. This method improves the balance of the saw blade under hot pressing. Additionally, the mold edge is equipped with anti-crack grooves, which, combined with the wavy cross-section shape, effectively release internal stress, reduce the risk of crack formation, and improve the mold's durability and reliability.

[0030] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A diamond circular saw blade sintering mold characterized by, Include: The lifting appliance (1) includes a load-bearing seat (101), a positioning column (102) perpendicular to the load-bearing seat (101) and fixedly installed on the load-bearing seat (101), and a pressing block (103) for pressing the mold; The mold (2) includes a mold groove (201), an annular cutting layer cavity (202) arranged on the outer edge of the bottom surface of the mold groove (201), and a through hole (203) penetrating through the center of the mold (2); The saw blade (3) is placed in the mold groove (201).

2. A sintering mold for a diamond circular saw blade as set forth in claim 1, characterized in that, The mold groove (201) has a pair of mirror images arranged on the upper and lower surfaces of the mold (2).

3. A sintering mold for a diamond circular saw blade as set forth in claim 1, characterized by, The material of the mold (2) is graphite.

4. A sintering die for diamond circular saw blades as claimed in claim 3, characterized in that, The outer ring wall of the mold (2) is a wavy cross section (204), and the upper and lower layers of the mold (2) are longitudinally arranged in an overlapping manner, and the upper and lower wavy cross sections (204) are engaged with each other when overlapping.

5. A sintering die for diamond circular saw blades as claimed in claim 4, characterized in that, The mold (2) further includes a plurality of anti-cracking grooves (205) opened on the edge thereof for releasing internal stress of the mold.

6. A sintering die for diamond circular saw blades as claimed in claim 1, characterized in that, The positioning column (102) penetrates out of the through hole (203) and successively penetrates through a plurality of molds (2) arranged in an upper and lower adhering manner.

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