Resin diamond tool hot-pressing die

Abstract

The utility model relates to the field of production of resin diamond tools, and provides a resin diamond tool hot-pressing mold which comprises a mold body, the mold body is provided with a plurality of filling parts and a plurality of flow guide grooves, and all the filling parts are concentrically arranged; the filling part comprises a plurality of particle cavities, all the particle cavities are distributed in a circumferential mode, and the two ends of the flow guide groove communicate with the two adjacent particle cavities correspondingly. According to the hot-pressing mold for the resin diamond tool, the situation of particle shortage in the hot-pressing forming process is reduced.

Description

Technical Field

[0001] This application relates to the field of resin diamond tool manufacturing, and in particular to a resin diamond tool hot pressing mold. Background Technology

[0002] Resin-bonded diamond tools are widely used in industrial processing due to their excellent performance. Their production typically relies on hot pressing molds for hot pressing. Hot pressing molds, as key production equipment, are crucial for ensuring quality and improving production efficiency.

[0003] Existing hot press molds have multiple granule cavities arranged circumferentially. Resin powder is poured into each cavity, and hot pressing binds the resin within all cavities together to form a single resin-diamond tool. However, when processing formulations with poor flowability, granule shortages may occur during hot pressing, leading to increased scrap rates and requiring improvement. Utility Model Content

[0004] To reduce the occurrence of particle shortage during hot pressing, this application provides a resin diamond tool hot pressing mold.

[0005] The resin-bonded diamond tool hot pressing mold provided in this application adopts the following technical solution:

[0006] A resin diamond tool hot pressing mold includes a mold body, the mold body having multiple particle cavities and multiple flow channels, the two ends of the flow channels being connected to two adjacent particle cavities respectively.

[0007] By adopting the above technical solution, the design of the flow channel provides an additional flow path for the resin material, enabling the material to flow into the adjacent particle cavity through one of the particle cavities. This makes the material more uniform when filling the particle cavity, reduces the occurrence of particle shortage during hot pressing, thereby reducing the scrap rate and improving production efficiency and product quality.

[0008] Furthermore, in the hot-pressed resin diamond tool, the formation of a ridge at the location of the guide groove and the formation of a bump at the location of the particle cavity can increase the connection strength between two adjacent bumps, that is, the ridge has the effect of a reinforcing rib, so as to reduce the occurrence of bumps falling off during the processing of the workpiece.

[0009] Optionally, the depth of the guide channel is no more than 1 / 2 the depth of the particle cavity.

[0010] By adopting the above technical solution, after the resin diamond tool is formed by hot pressing, the particle cavity will form bumps for grinding, and the guide groove will form ridges located between the bumps. By limiting the depth of the guide groove to no more than half the height of the particle cavity, it is to ensure that the liquid can flow smoothly from between adjacent bumps to the outer edge of the tool and be discharged when the resin diamond tool is used for grinding workpieces, thereby improving the drainage performance and working efficiency of the tool during use.

[0011] Optionally, the depth of the guide groove is not less than 1 mm.

[0012] By adopting the above technical solution, setting the depth of the guide channel to be no less than 1mm can ensure sufficient flow channel space during hot pressing, effectively avoiding problems such as insufficient mold filling pressure or incomplete material filling.

[0013] Optionally, the width of the guide groove is 1-2 mm.

[0014] By adopting the above technical solution, the width of the guide channel is set to 1-2mm, which can effectively balance the flow performance of the material during the filling process; it can ensure sufficient fluid channel area and avoid filling pressure loss due to the channel being too narrow.

[0015] Optionally, all particle cavities are arranged circumferentially, and all particle cavities together form a filling portion; the filling portion is provided in multiple sets, and all filling portions are arranged concentrically.

[0016] By adopting the above technical solution, the resin diamond tool formed by hot pressing using this mold can be subjected to uniform pressure in all directions when under pressure, thus avoiding local stress concentration.

[0017] Optionally, all flow channels can be arranged in a circular pattern.

[0018] By adopting the above technical solution, the circumferential distribution of the flow channels can connect multiple particle cavities, so that the excess resin material in the mold can flow more evenly during the hot pressing process, avoiding insufficient filling pressure and particle shortage caused by uneven flow, thereby effectively reducing the scrap rate and improving the molding quality of the product.

[0019] Optionally, the mold body includes a pattern template and inserts, the number of inserts being equal to the number of guide channels; all particle cavities are opened on one side of the pattern template, and each guide channel is matched with a corresponding insert; the pattern template has an installation groove, and two adjacent particle cavities are connected through opposite sides of the installation groove; the inserts are inserted into the installation groove, so that the guide channels connect two adjacent particle cavities; the inserts are installed on the pattern template through connectors.

[0020] By adopting the above technical solution, the guide channel may experience wear or blockage after prolonged use of the mold body. Since the guide channel is formed on the insert, and the insert is inserted into the mounting slot of the pattern template and fixed by the connector, the normal function of the guide channel can be quickly restored by replacing the insert, thereby effectively extending the overall service life of the mold and ensuring the stability of the production process and product quality.

[0021] Optionally, the mounting groove is located on the side of the flower template away from the particle cavity, and all the blocks are connected by a connecting plate.

[0022] By adopting the above technical solution, the connection plate allows all the inserts to be installed on the template at the same time, which not only simplifies the installation steps but also significantly improves the efficiency of mold assembly.

[0023] Optionally, the connector includes a first bolt, the connecting plate has a first threaded groove, the template has a second bolt groove, and the bolt passes through the first threaded groove and connects with the second threaded groove.

[0024] By adopting the above technical solution, the design of the bolt passing through the first threaded groove and connecting the second threaded groove not only facilitates disassembly and assembly, but also ensures the reliable fixation of the insert in the mounting groove, thereby improving the overall structural stability of the mold.

[0025] Optionally, the insert is connected to the connecting plate by a second bolt.

[0026] By adopting the above technical solution, the second bolt can detachably connect the insert and the connecting plate to replace the blocked insert, further reducing material waste.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By opening the flow channel, the design of the flow channel provides an additional flow path for the resin material, making the material more uniform when filling the particle cavity, reducing the linearity of particle shortage caused by insufficient die pressure, thereby reducing the scrap rate and improving production efficiency and product quality;

[0029] 2. By opening the guide channel in the insert, the normal function of the guide channel can be quickly restored by replacing the insert, thereby effectively extending the overall service life of the mold, while ensuring the stability of the production process and product quality. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of Example 1;

[0031] Figure 2 This is a structural schematic diagram of Example 2;

[0032] Figure 3 This is a schematic diagram of the structure of Example 3;

[0033] Figure 4 This is a partial sectional view of Embodiment 3, mainly showing the second bolt;

[0034] Figure 5 This is a partial sectional view of Embodiment 3, mainly showing the connectors.

[0035] Explanation of reference numerals in the attached drawings: 1. Mold body; 11. Filling part; 12. Particle cavity; 13. Guide channel; 2. Flower template; 21. Mounting groove; 22. Second threaded groove; 3. Insert; 31. Second bolt; 32. Connector; 4. Connecting plate; 41. First threaded groove. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0037] Example 1:

[0038] This application discloses a resin diamond tool hot pressing mold.

[0039] Reference Figure 1 A resin diamond tool hot pressing mold includes a mold body 1. A plurality of filling parts 11 and a plurality of guide grooves 13 are provided on one side of the mold body 1. All filling parts 11 are arranged concentrically. The filling parts 11 include a plurality of particle cavities 12. All particle cavities 12 are arranged circumferentially.

[0040] The two ends of the flow channel 13 are used to connect two adjacent particle cavities 12. In this embodiment, all flow channels 13 are arranged in a circular shape, that is, the two ends of the flow channel 13 are respectively connected to the two particle cavities 12 of the filling part 11. After the resin diamond tool is formed by hot pressing, the particle cavity 12 will form a protrusion for grinding, and the flow channel 13 will form a ridge between two adjacent protrusions. In this embodiment, the depth of the flow channel 13 is not less than 1 mm and not more than 1 / 2 the depth of the particle cavity 12. Setting the depth of the flow channel 13 to not less than 1 mm and not more than half the depth of the particle cavity 12 can ensure that sufficient flow channel space is provided during the hot pressing process, effectively avoid the problem of insufficient mold filling pressure or incomplete material filling, and ensure that the liquid can flow smoothly from between adjacent protrusions to the outer edge of the tool and be discharged, thereby improving the drainage performance and working efficiency of the resin diamond tool during use.

[0041] In other embodiments, the side of the mold body 1 with the particle cavity 12 is recessed inward so that the depth of the middle part of the mold body 1 is greater than the depth of the peripheral edge of the mold body; that is, the side of the resin diamond tool formed by the hot pressing mold has a raised center and a lower peripheral edge, and the raised strip formed by the hot pressing of the guide groove 13 has little effect on the liquid flowing to the outer edge of the resin diamond tool for discharge, so as to maintain the drainage performance of the resin diamond tool during use.

[0042] Using a coarse-grained formulation with poor flowability as an experiment, the material shortage rate of resin diamond tools with different widths of guide grooves (13mm) was tested as follows:

[0043]

[0044] The optimal width of the flow channel 13 is between 1-2 mm, depending on the particle size. Due to the limited flowability of the resin, a width that is too small will prevent the resin from passing through smoothly, and coarse-grained particles will clog the flow channel 13. When the width of the flow channel 13 reaches 2 mm, the problem of insufficient resin can be basically solved, and further widening of the flow channel 13 is not very meaningful.

[0045] The specific steps for using this mold in hot pressing to form resin diamond tools are as follows: insert the mold into the mold frame so that the mold frame surrounds the outer edge of the mold, then insert the mold core into the mold; then pour the resin powder into each particle cavity of the mold and scrape the upper surface, and then cover the upper surface of the mold with the mold cover for hot pressing, thereby realizing the forming of resin diamond tools.

[0046] The implementation principle of a resin diamond tool hot pressing mold in this application embodiment is as follows:

[0047] The design of the flow channel 13 provides an additional flow path for the resin material, allowing the material to flow from one of the particle cavities 12 into the adjacent particle cavities 12. This makes the material more uniform when filling the particle cavities 12, reducing the occurrence of particle shortages during hot pressing, thereby reducing the scrap rate and improving production efficiency and product quality.

[0048] Example 2:

[0049] This application discloses a resin diamond tool hot pressing mold.

[0050] Reference Figure 2 The difference between this application and Embodiment 1 is that all the guide grooves 13 are radially distributed, that is, the two ends of the guide grooves 13 are respectively connected to the particle cavities of the two adjacent filling parts 11.

[0051] In other embodiments, the guide groove 13 can connect two adjacent particle cavities 12 of the filling part 11 and connect the particle cavities 12 of two adjacent filling parts 11, further improving the uniformity of the material in the filling particle cavity 12.

[0052] The implementation principle of a resin diamond tool hot pressing mold in this application embodiment is as follows:

[0053] The radially distributed guide channels 13 allow material to flow into adjacent particle cavities 12, making the material more uniformly filled within the particle cavities 12; and ensure that the liquid flows smoothly from between adjacent protrusions to the outer edge of the tool and is discharged, thereby improving the drainage performance and working efficiency of the tool during use.

[0054] Example 3:

[0055] This application discloses a resin diamond tool hot pressing mold.

[0056] Reference Figure 3 and Figure 4 The difference between this application and Embodiment 1 is that: the mold body 1 includes a flower template 2 and multiple inserts 3. All particle cavities 12 are provided with one side of the flower template 2, and the other side of the flower template 2 is provided with an installation groove 21 for inserting the inserts 3. The installation groove 21 is connected to two adjacent particle cavities 12.

[0057] Reference Figure 4 All flow channels 13 are respectively formed in each insert 3. In this embodiment, all inserts 3 are connected by a connecting plate 4 to form a whole, so that all inserts 3 can be installed together on the flower template 2. The inserts 3 are connected to the connecting plate 4 by the second bolt 31, so that the inserts 3 of the flow channels 13 that are blocked can be replaced, so as to quickly restore the normal function of the flow channels 13 and thus effectively extend the overall service life of the mold.

[0058] Reference Figure 5 The connecting plate 4 is connected to the flower template 2 through the connector 32. In this embodiment, the flower template 2 is set as the first bolt. The connecting plate 4 has a first threaded groove 41. The flower template 2 has a second threaded groove 22 on the side away from the particle cavity 12. The first bolt passes through the first threaded groove 41 and is threadedly engaged with the second threaded groove 22.

[0059] The implementation principle of a resin diamond tool hot pressing mold in this application embodiment is as follows:

[0060] After prolonged use, the flow channel 13 may become worn or clogged. Since the flow channel 13 is located on the insert 3, the normal function of the flow channel 13 can be quickly restored by replacing the insert 3, thereby effectively extending the overall service life of the mold and ensuring the stability of the production process and product quality.

[0061] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A resin-bonded diamond tool hot-pressing mold characterized by comprising: The mold body (1) is provided with a plurality of particle cavities (12) and a plurality of flow guide grooves (13), both ends of the flow guide groove (13) are respectively connected with two adjacent particle cavities (12); the mold body (1) comprises a flower template (2) and an embedded block (3), the number of the embedded block (3) is equal to the number of the flow guide groove (13); all particle cavities (12) are provided on one side of the flower template (2), and each flow guide groove (13) is provided in the corresponding embedded block (3); the flower template (2) is provided with a mounting groove (21), the opposite sides of the mounting groove (21) are connected with two adjacent particle cavities (12); the embedded block (3) is inserted into the mounting groove (21), so that the flow guide groove (13) is connected with two adjacent particle cavities (12); the embedded block (3) is installed on the flower template (2) through a connecting piece (32).

2. The hot-pressing mold for resin-bonded diamond tools according to claim 1, characterized in that: The depth of the flow guide groove (13) is not higher than 1 / 2 of the depth of the particle cavity (12).

3. The hot-pressing mold for resin-bonded diamond tools according to claim 1, characterized in that: The depth of the flow guide groove (13) is not less than 1mm.

4. The hot-pressing mold for resin-bonded diamond tools according to claim 1, characterized in that: The width of the flow guide groove (13) is 1-2mm.

5. The hot-pressing mold for resin-bonded diamond tools according to claim 1, characterized in that: All particle cavities (12) are arranged in a circle, and all particle cavities (12) jointly form a filling part (11); the filling part (11) is provided with a plurality of groups, and all filling parts (11) are arranged concentrically.

6. The hot-pressing mold for resin-bonded diamond tools according to claim 1, characterized in that: All flow guide grooves (13) are arranged in a circle.

7. The hot-pressing mold for resin-bonded diamond tools according to claim 1, characterized in that: The mounting groove (21) is provided on the side of the flower template (2) away from the particle cavity (12), and all embedded blocks (3) are connected through a connecting plate (4).

8. The hot-pressing mold for resin-bonded diamond tools according to claim 7, characterized in that: The connecting piece (32) comprises a first bolt, the connecting plate (4) is provided with a first threaded groove (41), the flower template (2) is provided with a second bolt (31) groove, and the bolt is connected with the first threaded groove (41) and the second threaded groove (22).

9. The hot-pressing mold for resin-bonded diamond tools according to claim 7, characterized in that: The embedded block (3) is connected with the connecting plate (4) through the second bolt (31).

Images