Novel cast pin assembly and mold

Abstract

The utility model relates to a novel cast pin assembly and a die, which comprise a forming piece, a first water path is arranged in the forming piece, and the first water path extends along the axis of the forming piece and penetrates through the forming piece; the supporting part and the forming part are coaxially arranged and detachably connected, a second water path is arranged in the supporting part, the second water path extends along the axis of the supporting part and penetrates through the supporting part, and the first water path is communicated with the second water path; the cast pin assembly is divided into the forming piece and the supporting piece which can be disassembled, so that the cast pin can be quickly replaced, repeated disassembly of the mold is avoided, manpower and time resources are saved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of die casting technology, and in particular to a new type of casting pin assembly and mold. Background Technology

[0002] In large die-casting molds, casting pins are usually embedded in the mold, working together with other mold components to fix, support, and connect the mold. When the mold is in continuous production, the forming section of the casting pin may break due to some uncontrollable factors such as external force collision, mold ejection imbalance, and repeated high or low temperatures. In this case, the casting pin must be replaced in time. Specifically, the mold must first be removed from the die-casting machine, then the mold frame and mold core must be removed, and finally the casting pin must be removed. After replacement, the mold core and mold frame must be installed in sequence, and finally the mold must be reinstalled on the die-casting machine. Large die-casting molds inevitably use some casting pins, or even hundreds of casting pins. As the number of casting pins increases, the risk of casting pin breakage also increases. However, the mold is composed of multiple structures, and there are a lot of water pipes inside the mold. Repeatedly disassembling and assembling large molds when replacing casting pins brings huge waste of manpower, time, and production capacity. Therefore, a solution that can directly replace casting pins on the die-casting machine is needed. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the replacement of casting pins requires repeated disassembly of the mold, which causes waste of time, production capacity and human resources. In this way, a new type of casting pin assembly and mold is provided, which not only realizes the rapid replacement of casting pins, but also avoids repeated disassembly of the mold, saves human and time resources and improves production efficiency.

[0004] To solve the above-mentioned technical problems, this utility model provides a novel casting pin assembly, comprising,

[0005] A molded part having a first water channel inside, the first water channel extending along the axis of the molded part and penetrating the molded part;

[0006] A support member is coaxially arranged with the molded part and can be detachably connected. The support member has a second water channel inside, which extends along the axis of the support member and passes through the support member. The first water channel and the second water channel are in communication.

[0007] In one embodiment of the present invention, a sealing ring is further included, which is disposed in the gap between the molded part and the support member.

[0008] In one embodiment of the present invention, the distal end of the molded part is provided with an external thread, and the proximal end of the support member is provided with an internal thread that matches the external thread.

[0009] In one embodiment of the present invention, the molded part includes a molding section and a threaded section coaxially connected, the diameter of the molding section is larger than the diameter of the threaded section, and the outer wall of the threaded section is provided with the external thread.

[0010] In one embodiment of the present invention, the molded part further includes a transition section, the transition section being located between the molded section and the threaded section, and the transition section connecting the threaded section and the molded section, the transition section having a sealing groove extending circumferentially thereon, and the sealing ring being disposed in the sealing groove.

[0011] In one embodiment of this utility model, a flat portion is provided at the proximal end of the forming segment.

[0012] In one embodiment of the present invention, the distal end of the support member is radially expanded to form a connector.

[0013] In one embodiment of the present invention, the near end face of the support member is axially recessed to form a first central recess, the first central recess is coaxial with the second water channel, the diameter of the first central recess is larger than the diameter of the second water channel, and the internal thread is provided on the inner wall of the first central recess.

[0014] In one embodiment of the present invention, the distal end face of the support member is axially recessed to form a second central recess, the second central recess is coaxial with the second water channel, the diameter of the second central recess is larger than the diameter of the second water channel, and the inner wall of the second central recess is provided with internal threads.

[0015] To solve the above problems, a mold is also provided, which includes the novel casting pin assembly described above. The mold also includes a mold frame, a mold core, and an insert connected in sequence. The internal thread of the second central recess is threaded to the mold core. The forming section passes through the through hole of the insert. The second water channel is a water channel inside the mold core.

[0016] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0017] The novel casting pin assembly of this utility model is divided into a detachable molded part and a support part. Only the broken molded part needs to be replaced with a new one, without disassembling the entire mold to replace the casting pin assembly, thus avoiding repeated mold disassembly. The support part and the molded part are threadedly connected, which facilitates quick and simple replacement of the molded part, saving time and labor costs and improving production efficiency. Water channels are set inside both the support part and the molded part. During the replacement of the casting pin assembly, the water channels of the other casting pin assemblies work normally, ensuring normal heat dissipation of the mold. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the novel casting pin assembly in a preferred embodiment of the present invention;

[0020] Figure 2 for Figure 1 The cross-sectional view of the novel casting pin assembly shown is a structural schematic diagram.

[0021] Figure 3 for Figure 2 A structural schematic diagram of the cross-sectional view of the support member shown;

[0022] Figure 4 for Figure 2 A structural schematic diagram of the cross-sectional view of the molded part shown;

[0023] Explanation of reference numerals in the accompanying drawings: 1. Molded part; 11. Molded section; 111. Flat part; 112. First water channel; 113. Stress groove; 12. Threaded section; 121. External thread; 13. Transition section; 131. Sealing groove; 2. Support member; 21. Connector; 22. Second central notch; 23. Second water channel; 24. First central notch; 25. Internal thread near the end of the support member; 3. Sealing ring. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0025] Reference Figure 2 As shown, in one embodiment of this utility model, a novel casting pin assembly is disclosed, which is used on large molds to support, guide, and fix the mold. In this embodiment, the end closer to the insert is considered the proximal end, and the end closer to the mold frame is considered the distal end. The casting pin assembly includes...

[0026] The molded part 1 is configured as a columnar structure. A first water channel 112 is provided at the center of the interior of the molded part 1. The first water channel 112 extends along the axis of the molded part 1 and penetrates the molded part 1. The first water channel 112 is used to connect to the water channel inside the mold to realize the circulation of coolant.

[0027] The support member 2 is configured as a columnar structure and its length is greater than that of the molded part 1. The support member 2 is coaxially arranged with the molded part 1 and can be detachably connected to facilitate the installation and disassembly of the molded part 1. A second water channel 23 is provided at the center of the interior of the support member 2. The second water channel 23 extends along the axis of the support member 2 and passes through the support member 2. The first water channel 112 and the second water channel 23 are connected and connected to the water channel inside the mold to realize the circulation of coolant and dissipate heat from the mold.

[0028] In one embodiment of this utility model, reference is made to Figure 2 As shown, it also includes a sealing ring 3, which is disposed in the gap between the molded part 1 and the support member 2 and abuts against the molded part 1 and the support member 2, for sealing the gap between the molded part 1 and the support member 2 to prevent the cooling water of the first water channel 112 and the second water channel 23 from leaking. The sealing ring 3 is made of rubber.

[0029] In one embodiment of this utility model, reference is made to Figure 1 As shown, in order to quickly disassemble and install the molded part 1 and reduce the workload, the molded part 1 and the support 2 are threadedly connected. Specifically, the outer wall of the distal end of the molded part 1 is provided with an external thread 121, and the proximal end of the support 2 is provided with an internal thread 25 that matches the external thread 121. In another embodiment, the distal end of the molded part 1 is provided with an internal thread, and the outer wall of the proximal end of the support 2 is provided with an external thread 121 that matches the internal thread.

[0030] In one embodiment of this utility model, reference is made to Figure 4 As shown, the molded part 1 includes a molded section 11 and a threaded section 12 coaxially connected. The diameter of the molded section 11 is larger than the diameter of the threaded section 12. The outer wall of the threaded section 12 is provided with the external thread 121. When the support member 2 and the molded part 1 are connected, the threaded section 12 is inserted into the support member 2. In order to ensure the continuity of the diameters of the molded section 11 and the support member 2, the diameter of the molded section 11 is equal to the diameter of the support member 2.

[0031] In one embodiment of this utility model, reference is made to Figure 4 As shown, the molded part 1 further includes a transition section 13, which is located between the molded section 11 and the threaded section 12, and the transition section 13 is fixedly connected to the threaded section 12 and the molded section 11. The transition section 13 is provided with a plurality of sealing grooves 131 extending circumferentially thereon. The sealing ring 3 is circumferentially disposed in the sealing grooves 131, and the diameter of the sealing ring 3 is larger than the size of the sealing groove 131, so that the sealing ring 3 is in an interference fit state. In this embodiment, there are two sealing grooves 131. In order to allow the transition section 13 to be fully inserted into the support 2, the diameter of the transition section 13 is equal to the diameter of the threaded section 12.

[0032] In one embodiment of this utility model, reference is made to Figure 4 As shown, a flat part 111 is provided at the near end of the molding section 11. The flat part 111 has at least two parallel planes, which facilitates the turning of the handle to the entire molding part 1, thereby enabling the installation and disassembly of the molding part 1.

[0033] In one embodiment of this utility model, reference is made to Figure 3 As shown, the distal end of the support member 2 is radially expanded to form a connector 21, and the bottom of the connector 21 abuts against the surface of the mold core, which helps to improve the stability of the casting pin assembly.

[0034] In one embodiment of this utility model, reference is made to Figure 3 As shown, the near end face of the support member 2 is axially recessed to form a first central recess 24. The first central recess 24 is coaxial with the second water channel 23. The diameter of the first central recess 24 is larger than the diameter of the second water channel 23. The internal thread 25 is provided on the inner wall of the first central recess 24. In order for the threaded section 12 and the transition section 13 to be fully inserted into the first central recess 24, the length of the first central recess 24 is greater than the sum of the lengths of the threaded section 12 and the transition section 13, and the diameter of the first central recess 24 is exactly matched with the diameter of the threaded section 12.

[0035] In one embodiment of this utility model, reference is made to Figure 3 As shown, the distal end face of the support member 2 is axially recessed to form a second central recess 22. The second central recess 22 is coaxial with the second water channel 23. The diameter of the second central recess 22 is larger than the diameter of the second water channel 23. The inner wall of the second central recess 22 is provided with an internal thread. The internal thread of the second central recess 22 is used to connect with the mold core thread, which serves to fix the entire casting pin assembly.

[0036] Furthermore, as referenced Figure 4 As shown, the forming section is provided with stress grooves 113 extending along its circumference, which are used to reduce stress concentration in the forming section and improve the fatigue resistance of the forming section.

[0037] To solve the above problems, a mold is also provided, which includes several of the novel casting pin components described above. The mold also includes a mold frame, a mold core, and an insert connected in sequence. The internal thread of the second central recess 22 is threaded to the mold core. The forming section 11 passes through the through hole of the insert. The second water channel 23 passes through the water channel inside the mold core.

[0038] The working principle of the novel casting pin assembly described in this utility model is as follows:

[0039] The casting pin assembly is fixed by connecting the mold core to the internal thread 25 at the distal end of the support member 2, with the forming section 11 passing through the through hole of the insert. When the forming section 11 breaks, the forming part 1 is disassembled by turning it with a wrench, and the broken forming part 1 is taken out from the through hole. Then, the distal end of the new forming part 1 is inserted into the first central recess 24 at the proximal end of the support member 2 through the through hole, and the forming part 1 is tightened by turning the flat part 111 with a wrench, thus completing the replacement of the casting pin assembly. Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A novel cast pin assembly, characterized in that, include, A molded part having a first water channel inside, the first water channel extending along the axis of the molded part and penetrating the molded part; A support member is coaxially arranged with the molded part and can be detachably connected. The support member has a second water channel inside, which extends along the axis of the support member and passes through the support member. The first water channel and the second water channel are in communication.

2. The novel cast pin assembly according to claim 1, characterized in that, It also includes a sealing ring disposed in the gap between the molded part and the support member.

3. A novel cast pin assembly according to claim 2, characterized in that, The distal end of the molded part is provided with an external thread, and the proximal end of the support member is provided with an internal thread that matches the external thread.

4. A novel cast pin assembly according to claim 3, characterized in that, The molded part includes a molded section and a threaded section coaxially connected. The diameter of the molded section is larger than the diameter of the threaded section, and the outer wall of the threaded section is provided with the external thread.

5. A novel cast pin assembly according to claim 4, characterized in that, The molded part further includes a transition section located between the molded section and the threaded section, and the transition section connects the threaded section and the molded section. The transition section is provided with a sealing groove extending circumferentially thereon, and the sealing ring is disposed in the sealing groove.

6. A novel cast pin assembly according to claim 4, characterized in that, The proximal end of the forming section is provided with a flat section.

7. A novel cast pin assembly according to claim 1, characterized in that, The distal end of the support member is radially expanded to form a connector.

8. A novel cast pin assembly according to claim 3, characterized in that, The support member has an axial recess on its near end face to form a first central recess. The first central recess is coaxial with the second water channel. The diameter of the first central recess is larger than the diameter of the second water channel, and the internal thread is provided on the inner wall of the first central recess.

9. A novel cast pin assembly according to claim 1, characterized in that, The distal end face of the support member is axially recessed to form a second central recess. The second central recess is coaxial with the second water channel. The diameter of the second central recess is larger than the diameter of the second water channel. The inner wall of the second central recess is provided with internal threads.

10. A mold comprising a novel casting pin assembly as described in any one of claims 1-9, characterized in that, The mold also includes a mold frame, a mold core, and an insert connected in sequence. The internal thread of the second central recess is threaded to the mold core. The forming section passes through the through hole of the insert. The second water channel is a water channel inside the mold core.

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