Injection mold based on modular insert
The modular insert design solves the problems of local adjustment and maintenance of traditional injection molds, achieves rapid response to product changes, reduces production costs and improves processing accuracy.
Patent Information
- Application Number
- CN202422835331.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Traditional integral injection molds have the disadvantages of low production efficiency and high maintenance costs in product design. They are difficult to adjust and repair locally, and the processing accuracy is difficult to guarantee.
The modular insert design allows only the first insert in the insert assembly to be modified or replaced when local features of the product need to be adjusted or optimized. The T-slot and the first slot are used in conjunction to facilitate disassembly and installation, thereby achieving local adjustment of the mold.
It shortens the product design change cycle, reduces production costs, improves processing accuracy and assembly efficiency, and reduces mold damage and maintenance costs.
Smart Images
Figure CN223419957U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to an injection mold based on modular inserts. Background Art
[0002] Injection molds play a crucial role in modern manufacturing and are widely used in the production of various plastic products. With the continuous expansion of plastic products in various fields and the increasing demand for product quality, injection mold technology is also constantly evolving.
[0003] In traditional injection mold design and manufacturing, the construction of the mold's internal structure is often relatively simple. For example, when molding products with special structures or complex shapes, the molded parts of the mold usually adopt an integral design. This integral design has many limitations when facing certain specific product requirements. On the one hand, when certain local features of the product need to be frequently adjusted or optimized, it is difficult to make local modifications to the integral molding parts, and the entire mold often needs to be redesigned and manufactured, which undoubtedly increases production costs and production cycles. On the other hand, the integral structure also faces high technical difficulties in the mold processing process, especially for some complex shapes with high precision requirements. The processing accuracy is difficult to guarantee, which can easily lead to product defects such as flash and dimensional deviation.
[0004] Furthermore, the monolithic structure also creates inconvenience for operators when it comes to mold assembly and maintenance. Due to the integral nature of the components, any problem with a particular part during assembly may require disassembly and adjustment of the entire assembly. This is not only time-consuming but can also easily cause secondary damage to the mold during disassembly and reassembly, reducing its lifespan. Furthermore, over long-term use, wear and damage within the mold is often localized, but the monolithic structure makes it difficult to specifically replace damaged components during repairs. Complete replacement or complex repairs are necessary, further increasing maintenance costs and downtime, and significantly impacting production efficiency.
[0005] Therefore, it is necessary to propose an improved technical solution to solve the above problems. Utility Model Content
[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.
[0007] An injection mold based on modular inserts, comprising a front mold and a rear mold, wherein the front mold has a front mold core and the rear mold has a rear mold core, and the front mold and the rear mold are butted together so that the front mold core and the rear mold core are butted together to form a mold cavity for molding a product;
[0008] An assembly groove that docks with the mold cavity is opened along the end surface of the front mold core, and an insert assembly is installed at the assembly groove. The insert assembly includes a first fixing block and a second fixing block. The first fixing block is embedded in the assembly groove, and the second fixing block is fixedly connected to the front mold and supported and abutted against the first fixing block. The first fixing block and the second fixing block are equipped with a total of a plurality of first inserts;
[0009] Both ends of the second fixed block are respectively provided with a transversely arranged T-shaped slot, and the first fixed block is provided with a first slot which is vertically arranged and corresponds to the T-shaped slot. One end of the first insert can be slidably engaged in the T-shaped slot, and the other end of the first insert is docked with the mold cavity through the first slot.
[0010] As a further solution of the present invention: an abutting portion is extended from the upper end of the first fixing block, a connected step portion is formed on one side of the assembly groove, and one side of the abutting portion is supported and abutted against the step portion.
[0011] As a further solution of the present invention: the second fixing block is T-shaped, the second fixing block includes a vertical end and a horizontal end, the abutting portion is T-shaped, and the abutting portion has a clearance opening that is matched with the vertical end;
[0012] Wherein, the T-shaped groove is transversely arranged at the vertical end and the horizontal end.
[0013] As a further solution of the present invention: one end of the first insert forms a first end that cooperates with the T-slot, and the first end includes a limiting part, a sliding part and an inclined part that are connected in sequence from top to bottom, and the limiting part, sliding part and inclined part are arranged with reduced diameters in sequence.
[0014] As a further solution of the present invention: the other end of the first insert forms a second end that cooperates with the mold cavity, and a product-profiling structure is provided on the second end.
[0015] As a further solution of the present invention: a thread groove is opened along the end surface of the second fixed block to be fixedly connected with the front mold, wherein there are three thread grooves, one thread groove is set at the vertical end, and the other thread groove is set at the horizontal end, and the three thread grooves are distributed in a triangular shape.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0017] When local features of a product need to be adjusted or optimized, only the first insert in the insert assembly needs to be modified or replaced. Since the first insert is easy to disassemble and install through the cooperation of the T-slot and the first slot, there is no need to redesign and manufacture the entire mold as in traditional integral molds, which greatly shortens the product design change cycle and reduces production costs. For example, if a local shape or size of a product needs to be fine-tuned, since the connection between the first fixing block, the second fixing block and the first insert is relatively clear and simple, only the first insert of the appropriate size needs to be reprocessed or selected, and then installed and debugged in the T-slot and the first slot. This allows operators to quickly locate the problem and deal with it, reducing assembly time and mold damage caused by improper assembly.
[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0020] Figure 1 This is a schematic diagram of the structure of the front mold core and the insert assembly of the utility model;
[0021] Figure 2 It is a structural diagram of the insert assembly of the utility model;
[0022] Figure 3 This is a structural diagram of the front mold core of the utility model;
[0023] Figure 4 This is a schematic structural diagram of the first insert of the utility model;
[0024] Figure 5 It is a structural diagram of the first fixing block of the utility model.
[0025] The reference numerals and names in the figures are as follows:
[0026] 1. Front mold core; 2. Back mold core; 3. Assembly groove; 4. Insert assembly; 5. First fixing block; 6. Second fixing block; 7. First insert; 8. T-slot; 9. First slot; 10. Abutment portion; 11. Step portion; 12. Vertical end; 13. Horizontal end; 14. Giving opening; 15. Limiting portion; 16. Sliding portion; 17. Inclined portion; 18. Product profiling structure; 19. Threaded groove. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0028] See also Figure 1-5 In an embodiment of the present invention, an injection mold based on modular inserts includes a front mold and a rear mold, wherein the front mold has a front mold core 1, and the rear mold has a rear mold core 2. The front mold and the rear mold are butted together so that the front mold core 1 and the rear mold core 2 are butted together to form a mold cavity for molding a product;
[0029] An assembly groove 3 that docks with the mold cavity is provided along the end surface of the front mold core 1. An insert assembly 4 is installed at the assembly groove 3. The insert assembly 4 includes a first fixing block 5 and a second fixing block 6. The first fixing block 5 is embedded in the assembly groove 3. The second fixing block 6 is fixedly connected to the front mold and supported and abutted against the first fixing block 5. The first fixing block 5 and the second fixing block 6 are provided with a total of a plurality of first inserts 7.
[0030] Both ends of the second fixed block 6 are respectively provided with a transversely arranged T-slot 8, and the first fixed block 5 is provided with a vertically arranged first slot 9 corresponding to the T-slot 8. One end of the first insert 7 can be slidably engaged in the T-slot 8, and the other end of the first insert 7 is docked with the mold cavity through the first slot 9.
[0031] In the technical solution of the present invention, the forming part of the front mold core 1 is subdivided and the structure of the insert assembly 4 is adopted to realize a specific function. The front mold and the rear mold are butted together to form a mold cavity, and an assembly groove 3 is provided on the key end face of the front mold core 1 and the insert assembly 4 is installed, wherein the first fixing block 5 and the second fixing block 6 cooperate with each other, the first fixing block 5 is embedded in the assembly groove 3, and the second fixing block 6 abuts against it and is fixed to the front mold, and the first insert 7 is slidably engaged in the horizontal T-slot 8 of the second fixing block 6 and the vertical first slot 9 of the first fixing block 5, thereby realizing precise positioning and butting in the mold cavity. This structural design makes the molding component inside the mold no longer a single whole, but composed of multiple detachable and adjustable modules;
[0032] One end of the first insert 7 can be slidably engaged with the T-slot 8, which allows the first insert 7 to be adjusted in a limited but precise manner in the lateral direction to accommodate dimensional changes or structural differences in this dimension of different products. At the same time, the other end of the first insert 7 is mated with the mold cavity through the first slot 9. The first slot 9 constrains and guides the vertical position of the first insert 7, ensuring that the first insert 7 is accurately positioned relative to the mold cavity in the vertical direction, thereby ensuring the precision requirements of various parts of the product during the molding process.
[0033] In summary, when local features of a product need to be adjusted or optimized, it is only necessary to modify or replace the first insert 7 in the insert assembly 4. Since the first insert 7 is matched with the T-slot 8 and the first slot 9, it is easy to disassemble and install. There is no need to redesign and manufacture the entire mold like a traditional integral mold, which greatly shortens the product design change cycle and reduces production costs. For example, if a local shape or size of a product needs to be fine-tuned, since the connection between the first fixing block 5, the second fixing block 6 and the first insert 7 is relatively clear and simple, it is only necessary to reprocess or select the first insert 7 of the appropriate size, and then install and debug it in the T-slot 8 and the first slot 9, so that the operator can quickly locate the problem and deal with it, reducing assembly time and mold damage caused by improper assembly.
[0034] In the embodiment of the present invention, an abutment portion 10 is formed on the upper end of the first fixing block 5, and a step portion 11 connected thereto is formed on one side of the assembly groove 3. One side of the abutment portion 10 is supported and abutted against the step portion 11.
[0035] The second fixing block 6 is T-shaped, and includes a vertical end 12 and a horizontal end 13. The abutting portion 10 is T-shaped, and has a clearance opening 14 that fits in the vertical end 12.
[0036] The T-shaped slot 8 is transversely arranged at the vertical end 12 and the transverse end 13 .
[0037] The abutment portion 10 extending from the upper end of the first fixing block 5 cooperates with the step portion 11 on one side of the assembly groove 3. When the mold is assembled, one side of the abutment portion 10 abuts against the step portion 11, so that the first fixing block 5 is accurately positioned and restricted in the assembly groove 3 to prevent unnecessary displacement.
[0038] The second fixed block 6 is T-shaped, and the structural design of its vertical end 12 and horizontal end 13 is closely related to the overall layout of the insert assembly 4. The abutment portion 10 is 匚-shaped and has a clearance opening 14. The clearance opening 14 forms a clearance fit with the vertical end 12 of the second fixed block 6. During the assembly process, the vertical end 12 can smoothly pass through the clearance opening 14, so that the second fixed block 6 and the first fixed block 5 can be accurately docked and form a stable structural relationship. The T-slot 8 is set at the vertical end 12 and the horizontal end 13, and one end of the first insert 7 is embedded in the T-slot 8. The first insert 7 is limited in the horizontal direction by the horizontal structure of the T-slot 8. At the same time, combined with the overall structure of the first fixed block 5 and the cooperation with the assembly groove 3, the first insert 7 is accurately positioned in all directions in the horizontal and vertical directions, so that the position of the insert in the mold cavity is stable and predictable, ensuring the accuracy of product molding.
[0039] In the embodiment of the present invention, one end of the first insert 7 forms a first end that cooperates with the T-slot 8. The first end includes a limiting portion 15, a sliding portion 16, and an inclined portion 17 that are sequentially connected from top to bottom. The limiting portion 15, the sliding portion 16, and the inclined portion 17 are sequentially reduced in diameter.
[0040] The other end of the first insert 7 forms a second end that cooperates with the mold cavity, and a product-profiling structure 18 is provided on the second end.
[0041] The first end of the first insert 7 is composed of a limiting portion 15, a sliding portion 16 and an inclined portion 17, which are successively reduced in diameter and matched with the T-slot 8. The limiting portion 15 plays a lateral limiting role on the upper part of the T-slot 8 to prevent the first insert 7 from excessive displacement in the horizontal direction and ensure its lateral positioning accuracy. The sliding portion 16 is closely matched with the main groove of the T-slot 8, so that the first insert 7 can slide smoothly in the T-slot 8 to adapt to the size changes of different products in this dimension. The design of the inclined portion 17 is conducive to guiding the insert into the T-slot 8 smoothly during installation, reducing jamming and friction during installation. At the same time, it can also play a certain buffering and guiding role during the opening and closing process of the mold, making the movement of the first insert 7 in the T-slot 8 more stable and reliable;
[0042] The second end of the first insert 7 is provided with a product profiling structure 18, which is designed according to the local shape characteristics of the desired molded product. During the injection molding process, when the plastic melt fills the mold cavity, the second end of the first insert 7 is in direct contact with the melt. Its product profiling structure 18 can accurately shape the specific local shape of the product, so that the details and complex structures of the product can be accurately molded.
[0043] The utility model discloses a threaded groove 19 is set up to the end face of the second fixed block 6, and the threaded groove 19 is set up with the front mould fixed connection cooperation, wherein, the threaded groove 19 is provided with three, and one threaded groove 19 is set up to the vertical end 12, and the second threaded groove 19 is set up to the horizontal end 13, and three threaded grooves 19 are distributed in triangle.
[0044] That is to say, one threaded groove 19 is set up to the vertical end 12, and two threaded grooves 19 are set up to the horizontal end 13, thereby connecting to form triangle shape, and three threaded grooves 19 distributed in triangle can significantly improve the connecting fastening between the second fixed block 6 and the front mould, and even if being influenced by factors such as vibration, temperature change and repeated mold opening and closing operation during long-term use of the mould, this stable connecting structure can effectively prevent the loosening of threaded connection, and since three threaded grooves 19 are distributed in triangle, can evenly disperse force, so that the load of each thread when bearing pressure is relatively small and uniform, which can reduce the wear of thread during long-term stress, prolong the service life of thread, and further reduce the maintenance cost of mould.
[0045] And the firm stability of the second fixed block 6 helps the stability of the first fixed block 5 and the first insert 7, thereby benefiting the forming of product.
[0046] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.
Claims
1. An injection mold based on modular inserts, characterized in that: The front mold comprises a front mold and a rear mold, wherein the front mold has a front mold core, and the rear mold has a rear mold core, and the front mold and the rear mold are butted together so that the front mold core and the rear mold core are butted together to form a mold cavity for molding a product; An assembly groove that docks with the mold cavity is opened along the end surface of the front mold core, and an insert assembly is installed at the assembly groove. The insert assembly includes a first fixing block and a second fixing block. The first fixing block is embedded in the assembly groove, and the second fixing block is fixedly connected to the front mold and supported and abutted against the first fixing block. The first fixing block and the second fixing block are equipped with a total of a plurality of first inserts; Both ends of the second fixed block are respectively provided with a transversely arranged T-shaped slot, and the first fixed block is provided with a first slot which is vertically arranged and corresponds to the T-shaped slot. One end of the first insert can be slidably engaged in the T-shaped slot, and the other end of the first insert is docked with the mold cavity through the first slot.
2. The modular insert-based injection mold according to claim 1, characterized in that: An abutting portion is extended from the upper end of the first fixing block, a step portion connected thereto is formed on one side of the assembly groove, and one side of the abutting portion is supported and abutted against the step portion.
3. The modular insert-based injection mold according to claim 2, characterized in that: The second fixing block is T-shaped, including a vertical end and a horizontal end, and the abutting portion is T-shaped, and the abutting portion has a clearance opening that is matched with the vertical end; Wherein, the T-shaped groove is transversely arranged at the vertical end and the horizontal end.
4. The modular insert-based injection mold according to claim 2, characterized in that: One end of the first insert forms a first end that cooperates with the T-slot, and the first end includes a limiting portion, a sliding portion and an inclined portion that are sequentially connected from top to bottom, and the limiting portion, sliding portion and inclined portion are sequentially reduced in diameter.
5. The modular insert-based injection mold according to claim 4, characterized in that: The other end of the first insert forms a second end that cooperates with the mold cavity, and a product-profiling structure is provided on the second end.
6. The modular insert-based injection mold according to claim 3, characterized in that: A thread groove is provided along the end surface of the second fixed block for fixed connection with the front mold, wherein there are three thread grooves, one of which is provided at the vertical end and the other is provided at the horizontal end, and the three thread grooves are distributed in a triangular shape.