Insert mold core with detachable and replaceable insert
By designing mounting slots and positioning holes on the template, and combining them with guide bosses and adjusting screws, the mold core block can be stably installed and easily disassembled. This solves the problems of complex connections and cumbersome adjustments in existing mold core structures, and improves the flexibility and applicability of the mold.
Patent Information
- Application Number
- CN202521692498.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-08
AI Technical Summary
The existing mold core structure requires the replacement of the entire mold core when there is local wear or damage, which increases maintenance costs and downtime. In addition, the connection structure between the insert and the mold core is complex, and adjustment and disassembly are cumbersome, which affects the flexibility and applicability of the mold.
The insert mold core is designed for easy disassembly and replacement. By opening mounting slots and positioning holes on the template, and using detachable mold core blocks, the mold core blocks can be stably installed and easily disassembled through the cooperation of guide bosses, positioning plates and adjusting screws, simplifying the adjustment process.
It improves the installation accuracy and stability of the mold core block, simplifies the adjustment and disassembly process, enhances the flexibility and applicability of the mold, and reduces maintenance costs and downtime.
Smart Images

Figure CN224675313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold cores, specifically to insert mold cores that are easy to disassemble and replace. Background Technology
[0002] In modern manufacturing, molds are widely used in numerous industries such as automotive, electronics, home appliances, and medical devices, serving as crucial tools for achieving mass production and ensuring consistent product quality. The mold core, as the core component of a mold, directly determines the shape, dimensional accuracy, and surface quality of the molded product. Typically installed within the mold cavity and core, the mold core withstands high temperatures, high pressures, and material friction and impacts during molding processes such as injection molding, die casting, and stamping. Its performance and reliability play a vital role in the entire production process and product quality.
[0003] Currently, existing mold cores typically employ a one-piece or partially detachable structure during use. A one-piece mold core is manufactured by processing the entire cavity or core as a single unit. This structure offers high overall rigidity and precision, ensuring the dimensional stability of the molded product. Partially detachable mold cores, on the other hand, are designed as detachable inserts for areas prone to wear or requiring frequent replacement, building upon the one-piece mold core design.
[0004] However, existing mold core structures still have some obvious defects. For one-piece mold cores, when local wear or damage occurs, the entire mold core often needs to be replaced. This not only increases the maintenance cost and downtime of the mold, but also wastes materials. Although partially detachable mold cores have solved the problem of local replacement to some extent, the connection structure between the insert and the mold core body is usually more complex. The adjustment and disassembly process is more cumbersome, which is not conducive to convenient adjustment and use, and affects the flexibility and applicability of the mold. Utility Model Content
[0005] The purpose of this utility model is to solve the above-mentioned defects and provide an insert mold core that is easy to disassemble and replace, so as to solve the technical problem that the connection structure between the existing insert and the mold core is usually more complicated, which leads to a more complicated adjustment and disassembly process, affecting the flexibility and applicability of the mold.
[0006] The objective of this utility model is achieved through the following means:
[0007] A replaceable insert mold core includes a template. The template has an installation groove, and a detachable mold core block is connected within the installation groove. The mold core block has multiple connection holes. The template has positioning holes that coaxially mate with the connection holes. The side of the mold core block has a corresponding positioning groove. The installation groove has a clearance portion that mates with the positioning groove. A pressure plate is connected to the bottom of the template. A slidably adjustable positioning plate is connected to the pressure plate via a sliding groove. A raised guide boss is formed on the positioning plate. The top of the guide boss extends through the positioning groove and is exposed. One end of the guide boss contacts the inner wall of the positioning groove and forms a locking pair. A threaded hole is formed on the side of the guide boss. An adjustment hole coaxially mates with the threaded hole is formed on the side of the template. A rotatable adjustment screw is connected to the adjustment hole. One end of the adjustment screw passes through the adjustment hole and is threadedly connected to the threaded hole, allowing the adjustment screw to rotate and apply a clamping force to the guide boss against the positioning groove.
[0008] Furthermore, as described above, the positioning groove and the avoidance part are paired to form a retaining gap, the guide boss makes a pressing contact with the side of the positioning groove, and the other side of the guide boss forms a docking gap with the avoidance part.
[0009] By pairing the positioning groove and the clearance part to form a holding gap, and by cooperating with the guide boss, the positioning groove, and the clearance part, the guide boss can be stably held in the positioning groove, ensuring the stability of the mold core block installation. This provides reasonable space for subsequent adjustment of the positioning plate, ensuring that the positioning plate can effectively clamp the mold core block, improving the reliability and adjustment convenience of the insert mold core structure, and solving the problems of complex connection structure and inconvenient adjustment of existing inserts and mold cores.
[0010] Furthermore, as described above, the positioning plate consists of two pieces, which are symmetrically arranged in the clamping gaps on both sides. The two positioning plates can move closer to or further away from each other relative to the mold core block.
[0011] Two symmetrical positioning plates are set within the clamping gap, which can move closer or further apart from each other. The clamping force on the mold core block can be flexibly controlled by adjusting the position of the two positioning plates, which facilitates the installation, disassembly and adjustment of the mold core block. This simplifies the process of disassembling and adjusting the insert and the mold core, improves the flexibility and applicability of the mold, and overcomes the shortcomings of the cumbersome adjustment of the existing structure.
[0012] Furthermore, as described above, the bottom of the positioning plate is formed with a slider that slides and matches with the slide groove. The positioning plate is inserted into the slide groove by matching the slider. A limit stop is formed in the mounting groove. A limit part is provided on the positioning plate to lock and match with the limit stop.
[0013] The sliding pairing of the bottom slider of the positioning plate with the slide groove, and the clamping pairing of the upper limit part of the positioning plate with the limit stop in the mounting groove, provide a stable structural foundation for the sliding and positioning of the positioning plate. This ensures that the positioning plate will not deviate during the sliding process and can accurately reach the designated position to clamp the mold core block. This makes the adjustment of the insert mold core more precise and stable, further simplifies the adjustment and disassembly process, and improves the flexibility and applicability of the mold.
[0014] Furthermore, as described above, the upper sleeve of the adjusting screw is provided with a pad, so that one end of the adjusting screw passes through the adjusting hole and is threadedly connected to the threaded hole.
[0015] A shim is fitted onto the adjusting screw. The shim acts as a buffer and protector, preventing the adjusting screw from directly contacting the template and other components, thus avoiding wear. At the same time, the presence of the shim helps the adjusting screw to connect more stably with the threaded hole, allowing the adjusting screw to more effectively apply clamping force to the guide boss through rotation. This ensures the stability and reliability of the insert mold core structure adjustment and facilitates the disassembly, assembly, and adjustment of the insert and mold core.
[0016] Furthermore, as described above, the template is provided with a matching assembly module, the bottom of which is provided with a pressing module that matches the mold core block, and the assembly module is provided with two plug-in plates, on which protruding plug-in bosses are formed.
[0017] The template features paired assembly modules, and the bottom pressing module of the assembly module is paired with the mold core block. This ensures that the mold core block is accurately pressed during mold closing, guaranteeing the normal operation of the mold. The design of the insertion plate and insertion boss on the assembly module facilitates quick and accurate insertion and installation between the assembly module and the template, improving the efficiency of mold assembly. The overall structure makes the installation and use of the insert mold core in the mold more convenient and stable, further enhancing the flexibility and applicability of the mold.
[0018] The beneficial effects of this utility model are as follows: By opening an installation groove on the template and connecting a detachable mold core block, and opening multiple connection holes on the mold core block, and opening positioning holes on the template that are coaxially matched with the connection holes, the precise positioning of the mold core block in the installation groove is ensured, improving the installation accuracy and stability of the mold core block. At the same time, a pressure plate is connected to the bottom of the template, and a sliding and adjustable positioning plate is connected to the pressure plate through a sliding groove. The top of the guide boss extends through the positioning groove and contacts the inner wall of the positioning groove to form a clamping match, so that the positioning plate can be adjusted to adapt to mold core blocks of different sizes, improving the versatility and flexibility of the mold. By adjusting one end of the screw through the adjustment hole and connecting it with the threaded hole, the guide boss applies a clamping force to the positioning groove, thereby achieving a stable installation of the mold core block. Conversely, by loosening the clamping of the guide boss on the mold core block, the mold core block can be directly disassembled from the installation groove. The structure is simple, the operation is convenient, and it is easy to adjust and disassemble. Attached Figure Description
[0019] Figure 1 This is a top-view structural diagram of this embodiment;
[0020] Figure 2 This is a structural schematic diagram viewed from below in this embodiment;
[0021] Figure 3 This is a cross-sectional view of this embodiment;
[0022] Figure 4 This is a schematic diagram of the connection of the core block in this embodiment;
[0023] Figure 5 This is an exploded view of this embodiment;
[0024] Figure 6 This is a schematic diagram of the pairing structure of the template and the composite template in this embodiment;
[0025] The reference numerals in the figure are as follows: 1-template, 2-mounting groove, 3-mold core block, 4-connecting hole, 5-positioning hole, 6-positioning groove, 7-avoidance part, 8-pressure plate, 9-positioning plate, 10-guide boss, 11-threaded hole, 12-adjusting hole, 13-adjusting screw, 14-clamping gap, 15-slider, 16-limiting stop, 17-limiting part, 18-pad block, 19-assembly module, 20-pressing module, 21-insertion boss, 22-slide groove. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0027] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following describes the solution in further detail with reference to the accompanying drawings and embodiments.
[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme 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. Therefore, they should not be construed as limitations on this application.
[0029] In this embodiment, refer to Figures 1-6 The specific implementation of the easily disassembled and replaceable insert mold core includes a template 1. The template 1 has an installation groove 2, and a detachable mold core block 3 is connected within the installation groove 2. The mold core block 3 has multiple connecting holes 4. The template 1 has positioning holes 5 that coaxially mate with the connecting holes 4. The side of the mold core block 3 has opposing positioning grooves 6. The installation groove 2 has a clearance portion 7 that mates with the positioning groove 6. A pressure plate 8 is connected to the bottom of the template 1. A slidably adjustable positioning plate 9 is connected to the pressure plate 8 via a sliding groove 22. The positioning plate 9 has... A raised guide boss 10 extends through the positioning groove 6, and one end of the guide boss 10 contacts the inner wall of the positioning groove 6 to form a clamping pair. A threaded hole 11 is provided on the side of the guide boss 10, and an adjustment hole 12 is provided on the side of the template 1 to be coaxially paired with the threaded hole 11. A rotatable adjustment screw 13 is connected to the adjustment hole 12. One end of the adjustment screw 13 passes through the adjustment hole 12 and is threadedly connected to the threaded hole 11, so that the adjustment screw 13 rotates to apply a clamping force to the guide boss and the positioning groove 6.
[0030] The positioning groove 6 and the avoidance part 7 are paired to form a retaining gap 14. The guide boss 10 is in abutting contact with the side of the positioning groove 6, and the other side of the guide boss 10 forms a docking gap with the avoidance part 7.
[0031] The positioning groove 6 and the avoidance part 7 are paired to form a clamping gap 14, and the guide boss 10 is matched with the positioning groove 6 and the avoidance part 7. This ensures that the guide boss 10 can be stably clamped in the positioning groove 6, guaranteeing the stability of the mold core block 3 installation. It also provides reasonable space for subsequent adjustment of the positioning plate 9, ensuring that the positioning plate 9 can effectively clamp the mold core block 3. This improves the reliability and adjustment convenience of the insert mold core structure and solves the problems of complex connection structure and inconvenient adjustment of existing inserts and mold cores.
[0032] Two positioning plates 9 are provided, and the two positioning plates 9 are symmetrically arranged in the clamping gaps 14 on both sides. The two positioning plates 9 can move closer to or further away from each other relative to the mold core block 3.
[0033] Two positioning plates 9 are set symmetrically within the clamping gap 14 and can move closer or further apart from each other. The clamping force on the mold core block 3 can be flexibly controlled by adjusting the position of the two positioning plates 9, which facilitates the installation, disassembly and adjustment of the mold core block 3. This simplifies the disassembly and adjustment process of the insert and the mold core, improves the flexibility and applicability of the mold, and overcomes the shortcomings of the cumbersome adjustment of the existing structure.
[0034] The bottom of the positioning plate 9 has a slider 15 that slides and matches with the slide groove 22. The positioning plate 9 is inserted into the slide groove 22 through the slider 15. A limiting stop 16 is formed in the mounting groove 2. A limiting part 17 is provided on the positioning plate 9 to be locked and matched with the limiting stop 16.
[0035] The sliding pairing of the bottom slider 15 of the positioning plate 9 with the slide groove 22, and the clamping pairing of the upper limit part 17 of the positioning plate 9 with the inner limit stop 16 of the mounting groove 2, provide a stable structural foundation for the sliding and positioning of the positioning plate 9, ensuring that the positioning plate 9 will not deviate during the sliding process and can accurately reach the designated position to clamp the mold core block 3, making the adjustment of the insert mold core more precise and stable, further simplifying the adjustment and disassembly process, and improving the flexibility and applicability of the mold.
[0036] The upper sleeve of the adjusting screw 13 is provided with a pad 18, so that one end of the adjusting screw 13 passes through the adjusting hole 12 and is threadedly connected to the threaded hole 11.
[0037] A pad 18 is fitted onto the adjusting screw 13. The pad 18 can buffer and protect the adjusting screw 13 from direct contact with the template 1 and other components, thus preventing wear. At the same time, the presence of the pad 18 also helps the adjusting screw 13 to connect more stably with the threaded hole 11, so that the adjusting screw 13 can more effectively apply clamping force to the guide boss 10 through rotation. This ensures the stability and reliability of the insert mold core structure adjustment and facilitates the disassembly, assembly and adjustment of the insert and mold core.
[0038] The template 1 is provided with a matching assembly module 19. The bottom of the assembly module 19 is provided with a pressing module 20 that matches the mold core block 3. The assembly module 19 is provided with two plug-in plates, and the plug-in plates have protruding plug-in bosses 21.
[0039] The template 1 is equipped with a matching assembly module 19, and the bottom pressing module 20 of the assembly module 19 is matched with the mold core block 3. This ensures that the mold core block 3 can be accurately pressed when the mold is closed, thus ensuring the normal operation of the mold. The design of the plug-in plate and plug-in boss 21 on the assembly module 19 facilitates the quick and accurate plug-in installation between the assembly module 19 and the template 1, improving the efficiency of mold assembly. The overall structure makes the installation and use of the insert mold core in the mold more convenient and stable, further enhancing the flexibility and applicability of the mold.
[0040] Specifically, in some embodiments, the insertion boss 21 is inserted into the mating gap, thereby ensuring the mold closing stability and reliability of the mold closing module 19 and the template 1, and improving the accuracy of the molded product.
[0041] The specific usage structure in this embodiment is as follows:
[0042] Specifically, template 1 serves as the lower module for mounting the mold core block 3. A mounting groove 2 is formed on template 1 to connect to the detachable mold core block 3. Multiple connecting holes 4 are formed on the mold core block 3. Positioning holes 5 are formed on template 1 and coaxially paired with the connecting holes 4. A positioning shaft is connected to the positioning holes 5 of template 1, allowing the mold core block 3 to be inserted into the mounting groove 2 through the connecting holes 4, ensuring precise positioning of the mold core block 3 within the mounting groove 2. This improves the installation accuracy and stability of the mold core. Simultaneously, a pressure plate 8 is connected to the bottom of template 1. The top of pressure plate 8 is connected to a slidably adjustable positioning plate 9 via a sliding groove 22. The top of guide boss 10 extends through the positioning groove 6 and contacts the inner wall of the positioning groove 6. The clamping pairing allows the positioning plate 9 to be adjusted by sliding to accommodate mold core blocks 3 of different sizes, improving the versatility and flexibility of the mold. By adjusting one end of the screw 13 through the adjustment hole 12 and threadedly connecting it to the threaded hole 11, the guide boss 10 applies clamping force to the positioning groove 6, thereby achieving a stable installation of the mold core block 3. Specifically, the positioning grooves 6 on both sides of the mold core block 3 are adjusted according to the molded product, so that the guide bosses on both sides are paired and clamped closer to each other or adjusted further apart. Conversely, by loosening the clamping of the guide boss 10 on the mold core block 3, the mold core block 3 can be directly disassembled from the mounting groove 2. The structure is simple, the operation is convenient, and it is easy to adjust and disassemble.
[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. An insert mold core that is easy to disassemble and replace, including a template, characterized in that: The template has an installation groove, and a detachable mold core block is connected to the installation groove. The mold core block has multiple connection holes, and the template has positioning holes that are coaxially paired with the connection holes. The side of the mold core block has a positioning groove that is oppositely positioned. The installation groove has a clearance part that is paired with the positioning groove. The bottom of the template is connected to a pressure plate, and a slidably adjustable positioning plate is connected to the pressure plate through a sliding groove. A protruding guide boss is formed on the positioning plate. The top of the guide boss extends through the positioning groove and is exposed. One end of the guide boss contacts the inner wall of the positioning groove and forms a locking pair. A threaded hole is formed on the side of the guide boss, and an adjustment hole that is coaxially paired with the threaded hole is formed on the side of the template. A rotatable adjustment screw is connected to the adjustment hole. One end of the adjustment screw passes through the adjustment hole and is threadedly connected to the threaded hole, so that the adjustment screw rotates to apply a clamping force to the guide protrusion and the positioning groove.
2. The insert core that is easy to disassemble and replace according to claim 1, characterized in that: The positioning groove and the avoidance part are paired to form a retaining gap. The guide boss is in abutting contact with the side of the positioning groove, and the other side of the guide boss forms a docking gap with the avoidance part.
3. The insert core that is easy to disassemble and replace according to claim 2, characterized in that: The positioning plate consists of two pieces, which are symmetrically arranged in the clamping gaps on both sides. The two positioning plates can move closer to or further away from each other relative to the mold core block.
4. The insert core that is easy to disassemble and replace according to claim 1, characterized in that: The bottom of the positioning plate has a slider that slides and matches with the slide groove. The positioning plate is inserted into the slide groove by matching the slider. A limit stop is formed in the mounting groove. A limit part is provided on the positioning plate to lock and match with the limit stop.
5. The insert core that is easy to disassemble and replace according to any one of claims 1-4, characterized in that: The upper sleeve of the adjusting screw is equipped with a pad, so that one end of the adjusting screw passes through the adjusting hole and is threadedly connected to the threaded hole.
6. The insert core that is easy to disassemble and replace according to any one of claims 1-4, characterized in that: The template is provided with a matching assembly module. The bottom of the assembly module is provided with a pressing module that matches the mold core block. The assembly module is provided with two plug-in plates, and the plug-in plates have raised plug-in bosses.