Extrusion structure for a die-casting die and die-casting die

Abstract

The utility model belongs to the technical field of press fitting device, provide a kind of extrusion structure and die casting die for die casting die, extrusion structure includes: driving part;Connecting block, it is set in the output end of driving part, connecting block is equipped with multiple installation grooves along the moving direction of driving part output shaft, the outside wall of connecting block is penetrated in the side of each installation groove, forms installation opening;With the extrusion pin of one-to-one correspondence of installation groove, one end of extrusion pin is inserted into installation groove and is engaged with installation groove via installation opening;Connecting sleeve, it is sleeved in the outside of connecting block.Compared with prior art, the utility model has through the combination structure of the connecting block of multiple installation grooves and detachable connecting sleeve, realized the technical effect that single driving part synchronously drives multiple extrusion pins, solved the problems, such as complex structure, low space utilization, maintenance difficulty under traditional one-to-one driving mode, with Compact structure, convenient operation, reliability and other advantages.

Description

Technical Field

[0001] This utility model belongs to the field of press fitting technology, specifically relating to an extrusion structure for die casting molds and a die casting mold. Background Technology

[0002] In the die-casting mold production process, to improve the density and surface quality of the castings, extrusion pins are often used to apply localized pressure to key parts of the castings to eliminate defects such as shrinkage cavities and porosity. Traditional extrusion structures typically employ a configuration where one driving component (such as a hydraulic cylinder) drives one extrusion pin. When the mold needs to have multiple extrusion pins, multiple independent driving components must be configured accordingly, resulting in an increase in the number of hydraulic cylinders on the mold, occupying a large space, significantly increasing the mold volume and overall weight, and complicating the mold structure layout, thus affecting the mold's compactness and manufacturing costs.

[0003] Furthermore, existing technologies often employ threaded connections, pin connections, or integral welding to connect the extrusion pin and the drive component, resulting in complex structures and cumbersome disassembly and assembly processes. If an extrusion pin or its cooling system experiences wear or malfunction, it often necessitates disassembling the entire drive assembly or even performing destructive repairs, leading to long maintenance cycles, difficult upkeep, and severely impacting production efficiency and mold lifespan.

[0004] More importantly, the extrusion pin is subjected to thermal shock from high-temperature molten metal during operation, and usually requires built-in cooling water pipes for heat dissipation. However, in traditional structures, the connection between the cooling water pipes and the extrusion pin and drive components is inconvenient for integration and maintenance. The compact layout of the water pipe joints and the limited space make the installation, sealing, and maintenance of the cooling system extremely inconvenient, further increasing the difficulty of maintenance.

[0005] Therefore, how to design a compact, reliable, easy-to-disassemble and maintain extrusion structure, realize the synchronous driving of multiple extrusion pins by a single drive component, and integrate an efficient and easy-to-maintain cooling system has become a technical problem that urgently needs to be solved in the field of die-casting mold technology. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an extrusion structure and a die casting mold for die casting, in light of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an extrusion structure for die-casting molds is proposed, including: a driving component; A connecting block is disposed at the output end of the drive component. The connecting block has multiple mounting slots along the moving direction of the output shaft of the drive component. One side of each mounting slot penetrates the outer wall of the connecting block to form a mounting opening. Each of the mounting slots has a corresponding extrusion pin. One end of the extrusion pin is inserted into the mounting slot through the mounting opening and engages with the mounting slot. When the driving component moves the connecting block, it simultaneously moves the extrusion pin. A connecting sleeve, which is fitted over the outside of the connecting block, is used to close the mounting opening to retain the extrusion pin within the mounting groove.

[0008] In the above-mentioned extrusion structure for die casting mold, each of the mounting slots extends toward the side of the drive member to form a snap-fit ​​groove. A cooling water pipe is provided in each snap-fit ​​groove. One end of the cooling water pipe is snapped into the snap-fit ​​groove, and the other end is inserted into the extrusion pin to form a cooling water flow channel.

[0009] In the above-mentioned extrusion structure for die casting mold, each of the cooling water pipes is provided with a water pipe connector at one end facing the drive component. The water pipe connector is connected to the snap-fit ​​groove through a mounting platform. The connecting sleeve is provided with a relief groove corresponding to each water pipe connector. The depth of the relief groove is greater than the protrusion height of the water pipe connector.

[0010] In the above-mentioned extrusion structure for die casting mold, the end of the connecting sleeve away from the driving member is connected to a connecting seat, and the connecting seat is provided with a plurality of extrusion sleeves, each of which corresponds to an extrusion pin and is sleeved on the outer periphery of the extrusion pin.

[0011] In the above-mentioned extrusion structure for die casting mold, the connecting seat is provided with T-shaped grooves that correspond one-to-one with the extrusion sleeves, and the T-shaped grooves penetrate the side wall of the connecting seat to form an opening; Each of the extrusion sleeves has a radial flange at one end, which is engaged in the T-slot and secured by fasteners.

[0012] In the above-mentioned extrusion structure for die casting mold, the connecting sleeve is provided with a mounting hole, and the connecting seat is provided with an extension on the side facing the connecting sleeve. The extension is inserted into the mounting hole and cooperates with the hole wall to position and limit the installation position of the connecting seat.

[0013] In the above-mentioned extrusion structure for die casting mold, the connecting block is provided with a bolt through hole, and the output shaft of the drive member is provided with a threaded hole. The bolt passes through the bolt through hole and is threadedly connected to the threaded hole to fix the connecting block to the output shaft of the drive member.

[0014] In the above-mentioned extrusion structure for die casting mold, three mounting slots are arranged side by side on the connecting block, and each mounting slot contains an extrusion pin, with the axes of the three extrusion pins being coplanar.

[0015] This utility model solves the above-mentioned technical problems and also proposes a die-casting mold, including the above-mentioned extrusion structure for die-casting molds.

[0016] In one of the die-casting molds described above, the mold frame is provided with a receiving cavity, the extrusion structure is inserted into the receiving cavity, and the driving member is fixed to the mold frame by a threaded connection, so as to install the extrusion structure on the mold frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) By setting up a combination structure of a connecting block with multiple mounting slots and a detachable connecting sleeve, the technical effect of a single driving component driving multiple extrusion pins synchronously is achieved, which solves the problems of complex structure, low space utilization and difficult maintenance in the traditional one-to-one driving mode. It has the advantages of compact structure, convenient operation and high reliability.

[0019] (2) A cooling water pipe is installed in the snap-fit ​​groove, and one end of the pipe is snapped into the snap-fit ​​groove and the other end is inserted into the extrusion pin to form a cooling water flow channel, thus realizing a high degree of integration between the cooling system and the extrusion pin drive structure.

[0020] (3) A connecting seat is provided on the outside of the connecting sleeve, and a pressing sleeve corresponding to the pressing pin is configured on the connecting seat so that the pressing sleeve can be fitted on the outer periphery of the pressing pin, which plays a guiding and supporting role for the pressing pin, improving the stability and straightness of the pressing pin movement, and reducing uneven wear and jamming. Attached Figure Description

[0021] Figure 1 This is a perspective view of an extrusion structure for a die-casting mold according to the present invention.

[0022] Figure 2 yes Figure 1 Top view.

[0023] Figure 3 yes Figure 2 Sectional view along the AA direction.

[0024] Figure 4 It is a 3D view of the connecting sleeve.

[0025] Figure 5 This is a 3D view of the connecting blocks.

[0026] In the diagram, 100 is the drive component; 110 is the output shaft; 120 is the threaded hole; 200 is the connecting block; 210 is the mounting groove; 220 is the snap-fit ​​groove; 230 is the bolt through hole; 300 is the extrusion pin; 400 is the connecting sleeve; 410 is the clearance groove; 420 is the mounting hole; 500 is the cooling water pipe; 510 is the water pipe connector; 600 is the connecting seat; 610 is the T-slot; 620 is the extension; 700 is the extrusion sleeve; and 710 is the radial flange. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] like Figures 1 to 5 As shown, an extrusion structure for a die-casting mold according to the present invention includes: a driving component 100, a connecting block 200, an extrusion pin 300, and a connecting sleeve 400.

[0030] Specifically, the connecting block 200 is disposed at the output end of the driving member 100. The connecting block 200 is provided with multiple mounting slots 210 along the moving direction of the output shaft 110 of the driving member 100. One side of each mounting slot 210 penetrates the outer wall of the connecting block 200 to form a mounting opening. The extrusion pins 300 correspond one-to-one with the mounting slots 210. One end of the extrusion pin 300 is inserted into the mounting slot 210 through the mounting opening and engages with the mounting slot 210. When the driving component 100 drives the connecting block 200 to move, it simultaneously drives the extrusion pins 300 to move. The connecting sleeve 400 is fitted onto the outside of the connecting block 200 to close the mounting opening and retain the extrusion pin 300 within the mounting groove 210.

[0031] The driving component 100 is preferably a hydraulic cylinder. The engagement between the extrusion pin 300 and the mounting groove 210 is preferably achieved by setting a mounting platform on the extrusion pin and configuring the mounting groove as a T-slot. During operation, after the die-casting mold completes feeding, the driving component 100 drives the connecting block 200 to move towards the product cavity, pushing the extrusion pin 300 to apply pressure to the die-casting material in the cavity, thereby forming a hole or groove structure on the molded workpiece. The connecting block 200 is provided with multiple mounting grooves 210, which can simultaneously drive multiple extrusion pins 300 to move when the driving component 100 moves, realizing a single-drive, multi-output function, effectively reducing the number of driving components 100, reducing the mold space occupied, and lowering the mold volume and manufacturing cost.

[0032] The mounting groove 210 has a mounting opening extending to the outer wall of the connecting block 200 on one side. The extrusion pin 300 is inserted into the mounting groove 210 through this opening and is then closed and fixed by the connecting sleeve 400 fitted on the outside of the connecting block 200, thereby enabling quick assembly and disassembly of the extrusion pin 300. This structural design not only simplifies the assembly process but also facilitates subsequent maintenance and replacement, significantly improving the maintainability and efficiency of the extrusion structure.

[0033] Based on the above technical solution, this structure achieves the technical effect of a single driving component 100 synchronously driving multiple extrusion pins 300 by setting a combination structure of a connecting block 200 with multiple mounting slots 210 and a detachable connecting sleeve 400. This solves the problems of complex structure, low space utilization and difficult maintenance in the traditional one-to-one driving mode, and has the advantages of compact structure, convenient operation and high reliability.

[0034] Furthermore, each mounting slot 210 extends towards the side of the drive component 100 to form a snap-fit ​​slot 220. A cooling water pipe 500 is provided in each snap-fit ​​slot 220. One end of the cooling water pipe 500 is snapped into the snap-fit ​​slot 220, and the other end is inserted into the compression pin 300 to form a cooling water flow channel.

[0035] A cooling water pipe 500 is installed within the snap-fit ​​groove 220, with one end snapped into the groove 220 and the other end inserted into the extrusion pin 300 to form a cooling water flow channel. This achieves a high degree of integration between the cooling system and the extrusion pin 300 drive structure. This design not only effectively improves the heat dissipation capacity of the extrusion pin 300 and extends its service life, but also allows the cooling water pipe 500 to be installed synchronously with the connecting block 200, facilitating overall assembly and positioning. More importantly, the cooling water pipe 500 uses a snap-fit ​​connection, eliminating the need for threads or welding, allowing for quick assembly and disassembly, which is beneficial for the maintenance and replacement of the cooling system.

[0036] It is worth mentioning that each cooling water pipe 500 is provided with a water pipe connector 510 at the end facing the drive component 100. The water pipe connector 510 is connected to the snap-fit ​​groove 220 through a mounting platform. The connecting sleeve 400 is provided with a relief groove 410 corresponding to the water pipe connector 510. The depth of the relief groove is greater than the protrusion height of the water pipe connector 510. By installing a water pipe connector 510 at the end of the cooling water pipe 500 and connecting it to the clamping groove 220 using a mounting structure, the stability and sealing of the cooling water pipe 500 connection are improved. Simultaneously, a clearance groove 410 is provided on the connecting sleeve 400 to ensure that the water pipe connector 510 is not squeezed or interfered with after installation. The design of the clearance groove 410 having a depth greater than the protrusion height of the water pipe connector 510 ensures sufficient assembly space, avoids damage to the connector due to assembly errors, improves connection reliability and assembly convenience, and further enhances the maintainability of the cooling system.

[0037] The end of the connecting sleeve 400 away from the driving component 100 is connected to the connecting seat 600. The connecting seat 600 is provided with a plurality of extrusion sleeves 700. Each extrusion sleeve 700 corresponds to an extrusion pin 300 and is sleeved on the outer periphery of the extrusion pin 300.

[0038] A connecting seat 600 is provided on the outer side of the connecting sleeve 400, and a pressing sleeve 700 corresponding to the pressing pin 300 is configured on the connecting seat 600. This allows the pressing sleeve 700 to be fitted around the outer periphery of the pressing pin 300, providing guidance and support, improving the stability and straightness of the pressing pin 300's movement, and reducing uneven wear and jamming. This modular design separates the guiding function from the driving function, facilitating independent processing and replacement, and improving the overall reliability and maintainability of the structure.

[0039] The connecting seat 600 is provided with T-slots 610 that correspond one-to-one with the extrusion sleeve 700. The T-slots 610 penetrate the side wall of the connecting seat 600 to form an opening. Each extrusion sleeve 700 has a radial flange 710 at one end, which is inserted into the T-slot 610 and fixed by fasteners.

[0040] The connecting seat 600 is provided with a T-slot 610 that runs through the side wall. The extrusion sleeve 700 with a radial flange 710 is inserted into the T-slot 610 and secured with fasteners, forming a quick-release structure. This design allows for replacement of the extrusion sleeve 700 without axial disassembly, greatly simplifying the maintenance process and making it particularly suitable for space-constrained mold environments. The T-slot 610 structure also effectively withstands radial forces, improving connection strength and ensuring the stability of the extrusion sleeve 700 during operation.

[0041] The connecting sleeve 400 is provided with a mounting hole 420, and the connecting seat 600 is provided with an extension 620 on the side facing the connecting sleeve 400. The extension 620 is inserted into the mounting hole 420 and cooperates with the hole wall to position and limit the installation position of the connecting seat 600.

[0042] The connecting sleeve 400 is provided with a mounting hole 420, into which the extension 620 of the connecting seat 600 is inserted and mates with the hole wall, achieving precise positioning and radial limiting of the connecting seat 600. This structure prevents the connecting seat 600 from shifting or shaking during installation, ensuring the alignment accuracy of each extrusion pin 300 with the mold cavity and improving the accuracy of the extrusion action. At the same time, this positioning structure is simple and reliable, requiring no additional positioning elements, which helps improve assembly efficiency and structural stability.

[0043] The connecting block 200 is provided with a bolt through hole 230, and the output shaft 110 of the drive member 100 is provided with a threaded hole 120. The bolt passes through the bolt through hole 230 and is threadedly connected to the threaded hole 120 to fix the connecting block 200 to the output shaft 110 of the drive member 100.

[0044] The connecting block 200 is threadedly connected and fixed by bolt through hole 230 and threaded hole 120 on output shaft 110 of drive component 100. The connection method is firm and reliable, effectively transmits driving torque, and prevents loosening. This connection structure has a high degree of standardization, is easy to disassemble and assemble, and facilitates quick replacement and maintenance between drive component 100 and connecting block 200. It is suitable for production scenarios where frequent repairs or replacements of extrusion components are required.

[0045] In one embodiment, three mounting slots 210 are arranged side by side on the connecting block 200, each mounting slot 210 corresponding to an extrusion pin 300, and the axes of the three are coplanar. This structure can achieve multi-point synchronous extrusion while ensuring a compact structure. This layout is suitable for complex casting forming requirements that require multi-point pressurization, giving full play to the advantages of single drive and multiple outputs, further optimizing space utilization, and improving mold integration and work efficiency.

[0046] This solution also proposes a die-casting mold, including the extrusion structure described above.

[0047] The die-casting mold adopts the aforementioned extrusion structure, which has the advantages of compact structure, high driving efficiency, and easy maintenance. Through integrated and modular extrusion design, the number of driving components in the mold is effectively reduced, the overall complexity is lowered, the reliability and service life of the mold are improved, and it is also easy to automate production and maintenance, showing good prospects for industrial application.

[0048] Furthermore, the mold frame is provided with a receiving cavity, the extrusion structure is inserted into the receiving cavity, and the drive member 100 is fixed to the mold frame by a threaded connection, so as to install the extrusion structure on the mold frame.

[0049] The extrusion structure is integrally inserted into the cavity of the die frame and quickly fixed via a threaded connection between the drive component 100 and the die frame. The installation method is simple, reliable, and provides accurate positioning. This structure facilitates the overall disassembly and replacement of the extrusion module, supports modular die design, promotes die standardization and rapid die changeover, and improves production flexibility and equipment utilization.

[0050] This solution provides a novel extrusion structure for die casting molds and a die casting mold incorporating the structure, effectively solving the problems of large mold volume and complex structure caused by the one-to-one configuration of the drive component 100 and the extrusion pin 300 in the prior art, as well as the cumbersome connection between the extrusion pin 300 and the drive component, and the difficulty in disassembly and maintenance.

[0051] By incorporating a connecting block 200 with multiple mounting slots 210, combined with a snap-fit ​​connection and a closed structure with a detachable connecting sleeve 400, a highly efficient transmission mode is achieved where a single drive component 100 synchronously drives multiple extrusion pins 300. This significantly reduces the number of drive components and improves the integration and space utilization of the mold. Simultaneously, the structure adopts a modular design, with key components such as the extrusion pins 300, cooling water pipes 500, and extrusion sleeves 700 being installed conveniently via snap-fit, T-slots 610, and threaded positioning, greatly simplifying assembly and maintenance processes and improving maintenance efficiency. Furthermore, the cooling system is highly integrated with the drive structure. The cooling water pipes 500 are connected to the mounting platform via snap-fit, and a clearance groove 410 is provided on the connecting sleeve 400, ensuring the reliability and maintainability of the cooling function. The overall structure is compact, the connection is robust, and the guidance is precise, making it suitable for complex die-casting scenarios involving multi-point synchronous extrusion.

[0052] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An extrusion structure for a die-casting mold, characterized in that, include: Drive components; A connecting block is disposed at the output end of the drive component. The connecting block has multiple mounting slots along the moving direction of the output shaft of the drive component. One side of each mounting slot penetrates the outer wall of the connecting block to form a mounting opening. Each of the mounting slots has a corresponding extrusion pin. One end of the extrusion pin is inserted into the mounting slot through the mounting opening and engages with the mounting slot. When the driving component moves the connecting block, it simultaneously moves the extrusion pin. A connecting sleeve, which is fitted over the outside of the connecting block, is used to close the mounting opening to retain the extrusion pin within the mounting groove.

2. The extrusion structure for a die-casting mold as described in claim 1, characterized in that, Each of the mounting slots extends toward one side of the drive component to form a snap-fit ​​slot. A cooling water pipe is provided in each snap-fit ​​slot. One end of the cooling water pipe snaps into the snap-fit ​​slot, and the other end is inserted into the extrusion pin to form a cooling water flow channel.

3. The extrusion structure for a die-casting mold as described in claim 2, characterized in that, Each of the cooling water pipes is provided with a water pipe connector at one end facing the drive component. The water pipe connector is connected to the snap-fit ​​groove via a mounting bracket. The connecting sleeve is provided with a clearance groove corresponding to each water pipe connector. The depth of the clearance groove is greater than the protrusion height of the water pipe connector.

4. The extrusion structure for a die-casting mold as described in claim 1, characterized in that, The end of the connecting sleeve away from the driving component is connected to a connecting seat. The connecting seat is provided with a plurality of extrusion sleeves, each of which corresponds to an extrusion pin and is fitted around the outer periphery of the extrusion pin.

5. The extrusion structure for a die-casting mold as described in claim 4, characterized in that, The connecting seat is provided with T-shaped grooves that correspond one-to-one with the extrusion sleeves, and the T-shaped grooves penetrate the side wall of the connecting seat to form an opening; Each of the extrusion sleeves has a radial flange at one end, which is engaged in the T-slot and secured by fasteners.

6. The extrusion structure for a die-casting mold as described in claim 4, characterized in that, The connecting sleeve is provided with a mounting hole, and the connecting seat is provided with an extension on the side facing the connecting sleeve. The extension is inserted into the mounting hole and cooperates with the hole wall to position and limit the installation position of the connecting seat.

7. The extrusion structure for a die-casting mold as described in claim 1, characterized in that, The connecting block is provided with a bolt through hole, and the output shaft of the drive component is provided with a threaded hole. The bolt passes through the bolt through hole and is threadedly connected to the threaded hole to fix the connecting block to the output shaft of the drive component.

8. The extrusion structure for a die-casting mold as described in claim 1, characterized in that, The connecting block has three mounting slots arranged side by side, and each mounting slot contains a pressing pin. The axes of the three pressing pins are coplanar.

9. A die-casting mold, characterized in that, Includes an extrusion structure for a die-casting mold as described in any one of claims 1 to 8.

10. A die-casting mold as described in claim 9, characterized in that, It also includes a mold frame, which has a receiving cavity, the extrusion structure is inserted into the receiving cavity, and the driving member is fixed to the mold frame by a threaded connection to install the extrusion structure on the mold frame.

Images