Insert interchanging injection mold
By using interchangeable inserts in injection molds, the problems of high mold manufacturing costs and inconvenient maintenance are solved, enabling molds to quickly adapt to different product requirements, reducing production costs, and improving the versatility and precision of molds.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-13
AI Technical Summary
In the existing technology, two sets of molds are required to manufacture different products, which results in high mold manufacturing costs and inconvenient maintenance.
By using interchangeable insert injection molds, interchangeable insert components and drive components are set on the moving mold and the fixed mold, the mold can quickly adapt to the needs of different product styles. Product switching can be completed simply by changing the insert components, reducing mold manufacturing and maintenance costs.
It reduces mold manufacturing and maintenance costs, improves mold versatility and flexibility, ensures product dimensional and shape accuracy, and enhances the mold's usability.
Smart Images
Figure CN223989713U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold with interchangeable inserts. Background Technology
[0002] Injection molding is a molding process widely used in manufacturing, primarily for producing various plastic products. Its basic principle involves using an injection molding machine to inject hot-melt plastic into a mold cavity, which then cools and solidifies to obtain a plastic product with a specific shape and size.
[0003] like Figure 5 and Figure 10 The diagram shows the structure of two products. The only difference between the two products is the presence or absence of handrails on both sides. The main body of the products is the same. In the prior art, two products are often injection molded separately using two molds, but this method has high mold manufacturing costs for the two products. Utility Model Content
[0004] In order to reduce the manufacturing cost of molds, this application provides an injection mold with interchangeable inserts.
[0005] The technical solution for an interchangeable insert injection mold provided in this application is as follows:
[0006] An interchangeable insert injection mold includes a moving mold and a fixed mold with molding surfaces of the same parts of two products, and two sets of insert assemblies and a drive component. One set of the insert assemblies has a handrail molding surface. The two sets of insert assemblies are interchangeable on the moving mold and the fixed mold. Each set of insert assemblies includes a plurality of first inserts and a plurality of second inserts. The plurality of first inserts are detachably connected to the fixed mold, and the plurality of second inserts are detachably connected to the moving mold. The plurality of second inserts are slidably connected to the moving mold. The drive component is used to drive the sliding of the second inserts.
[0007] By adopting the above technical solution, the two sets of insert components can be interchanged on the moving mold and the fixed mold. In particular, the design of one set with the forming surface of the product's armrest allows the mold to quickly adapt to the production needs of different product styles. When it is necessary to produce products with different styles of armrests, there is no need to remanufacture the entire mold. Product switching can be completed simply by replacing the insert components. The inserts are detachably connected to the moving mold and the fixed mold, reducing the high cost of manufacturing multiple complete molds for producing different products. At the same time, when a part of the mold is damaged, only the damaged insert needs to be replaced, rather than the entire mold, further saving maintenance costs.
[0008] Preferably, the fixed mold is provided with a handrail forming surface. When the first insert and the second insert with the forming surface are installed on the fixed mold and the moving mold, the first insert and the second insert of the group form a flow channel when the mold is closed. When the first insert and the second insert without the forming surface are installed on the fixed mold and the moving mold, the first insert and the second insert of the group abut against each other when the mold is closed.
[0009] By adopting the above technical solution, the fixed mold has a built-in armrest molding surface. Combined with replaceable first and second inserts, the mold can be compatible with the production of different types of products. When the insert with the molding surface is installed, the mold can manufacture products with armrests, and the flow channel formed by the insert closing the mold helps the plastic raw material to fill evenly during injection molding, ensuring the complete molding of the armrest. When it is necessary to produce products without armrests, the insert without the molding surface is replaced. When they close the mold, they abut against each other, ensuring that the mold can still work normally. This allows for quick switching between different product styles, greatly improving the versatility of the mold.
[0010] Preferably, the driving component includes a plurality of hydraulic cylinders, each of the hydraulic cylinders corresponding to a plurality of second inserts, each of the hydraulic cylinders being detachably connected to the moving mold, and one end of the piston rod of each of the hydraulic cylinders being detachably connected to the second insert.
[0011] By adopting the above technical solution, since the hydraulic cylinder is detachably connected to the moving mold, if it is necessary to adjust the mold structure during the production process, such as replacing different insert components to adapt to the production requirements of different products, it can be easily achieved, thereby enhancing the versatility and flexibility of the mold and improving its use value.
[0012] Preferably, the moving mold is provided with a plurality of slide rails, each of the slide rails corresponding to a plurality of second inserts, and one end of each slide rail along its length direction can be inserted into the corresponding second insert.
[0013] By adopting the above technical solution, the slide rail provides a precise guiding path for the sliding of the second insert. During the replacement of the second insert, it can be easily removed or installed by sliding it out or in, facilitating its installation. During injection molding, the slide rail's constraint ensures the second insert slides smoothly along a predetermined direction, preventing offset and ensuring the dimensional and shape accuracy of all parts of the product. It also reduces the possibility of product structural deformation due to insert misalignment.
[0014] Preferably, the mold further includes a plurality of limiting plates, each of which corresponds to a plurality of second inserts. The plurality of limiting plates are fixedly connected to the hydraulic cylinders and detachably connected to the moving mold. The limiting plates abut against the corresponding slide rails. When the mold is in the mold-opening state, the plurality of hydraulic cylinders drive the second inserts until they abut against the corresponding limiting plates.
[0015] By adopting the above technical solution, the limiting plate can be detachably connected to the moving mold, which facilitates the removal of the limiting plate for inspection and replacement, improves the convenience of mold maintenance, and limits the movement of the second insert by the limiting plate. When the limiting plate is removed, the second insert can slide out from the slide rail.
[0016] Preferably, it further includes a plurality of first bolts, each of the plurality of first bolts corresponding to a plurality of first inserts, and one end of each of the plurality of first bolts passing through the corresponding first insert and threadedly connected to the fixed mold.
[0017] By adopting the above technical solution, when it is necessary to replace the first insert to produce different products, or to perform maintenance on the insert, the insert can be easily removed from the fixed mold by simply tightening the first bolt. Compared with other complex connection methods, this operation is simple and convenient, which can significantly shorten the mold downtime and improve production efficiency.
[0018] The main technical effects of this utility model are reflected in the following aspects:
[0019] 1. This utility model, by setting two sets of insert components and driving components, allows the two sets of insert components to be interchangeable on the moving mold and the fixed mold. In particular, the design of one set with the forming surface of the product's armrest allows the mold to quickly adapt to the production needs of different product styles. When it is necessary to produce products with different styles of armrests, it is not necessary to remanufacture the entire mold. Product switching can be completed simply by replacing the insert components. The inserts are detachably connected to the moving mold and the fixed mold, reducing the high cost of manufacturing multiple complete molds for producing different products. At the same time, when the mold is partially damaged, only the damaged insert needs to be replaced, rather than the entire mold, further saving maintenance costs.
[0020] 2. This utility model provides a precise guide path for the sliding of the second insert by setting several slide rails. During the replacement of the second insert, it can be slid out or slid in to complete the disassembly or installation, facilitating the installation of the second insert. During injection molding, the second insert can slide smoothly along a predetermined direction due to the constraint of the slide rails, avoiding deviation and ensuring the dimensional and shape accuracy of various parts of the product; it also reduces the possibility of product structural deformation caused by insert misalignment.
[0021] 3. This utility model sets several limiting plates, which are detachably connected to the moving mold, making it easy to remove the limiting plates for inspection and replacement, thus improving the convenience of mold maintenance. The limiting plates also limit the movement of the second insert. When the limiting plates are removed, the second insert can slide out from the slide rail. Attached Figure Description
[0022] Figure 1This is a schematic diagram of the molded state of the insert assembly without a handrail molding surface in an embodiment of this application.
[0023] Figure 2 This is a schematic diagram of the structure of the first insert without a handrail forming surface being installed into the moving mold in an embodiment of this application.
[0024] Figure 3 This is a schematic diagram of the structure of the second insert without a handrail forming surface installed in the fixed mold according to an embodiment of this application.
[0025] Figure 4 It is along Figure 3 Enlarged view of point A in the middle.
[0026] Figure 5 This is a schematic diagram of the product structure without handrails in the embodiments of this application.
[0027] Figure 6 This is a schematic diagram of the molded state of the insert assembly with the handrail forming surface in an embodiment of this application.
[0028] Figure 7 This is a schematic diagram of the structure of the first insert with the armrest forming surface installed to the moving mold in an embodiment of this application.
[0029] Figure 8 This is a schematic diagram of the structure of the second insert with the armrest forming surface installed to the fixed mold in an embodiment of this application.
[0030] Figure 9 It is along Figure 8 Enlarged view of point B in the middle.
[0031] Figure 10 This is a schematic diagram of the product structure with handrails according to an embodiment of this application.
[0032] Explanation of reference numerals in the attached drawings: 1. Moving mold; 11. Slide rail; 2. Fixed mold; 21. Handrail forming surface; 3. Insert assembly; 31. First insert; 311. First bolt; 32. Second insert; 321. Slide groove; 322. Insertion groove; 4. Driving component; 41. Hydraulic cylinder; 42. Limiting plate; 6. Product; 7. Handrail. Detailed Implementation
[0033] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail to make the technical solution of this application easier to understand and master.
[0034] This application discloses an interchangeable insert injection mold.
[0035] Reference Figure 2 , Figure 3 , Figure 7 and Figure 8This embodiment of an interchangeable insert injection mold includes a moving mold 1 and a fixed mold 2 with the same forming surface of two products 6, and the fixed mold 2 also has a handrail forming surface 21; it also includes two sets of insert assemblies 3 and a driving member 4, wherein one set of insert assemblies 3 has a handrail forming surface 21, and the two sets of insert assemblies 3 can be interchanged on the moving mold 1 and the fixed mold 2. Each set of insert assemblies 3 includes two first inserts 31 and two second inserts 32. The two first inserts 31 are detachably connected to the fixed mold 2, and the two second inserts 32 are detachably connected to the moving mold 1, and the two second inserts 32 are slidably connected to the moving mold 1. The driving member 4 is used to drive the sliding of the second inserts 32.
[0036] Reference Figure 2 , Figure 3 , Figure 7 and Figure 8 The two sets of insert components 3 are interchangeable on the moving mold 1 and the fixed mold 2. In particular, the design of one set with the forming surface of the armrest 7 of product 6 allows the mold to quickly adapt to the production needs of different product 6 styles. When it is necessary to produce product 6 with different styles of armrest 7, it is not necessary to remanufacture the entire mold. The product 6 can be switched by simply replacing the insert components 3. The inserts are detachably connected to the moving mold 1 and the fixed mold 2, which reduces the high cost of manufacturing multiple complete molds for producing different products 6. At the same time, when the mold is partially damaged, only the damaged insert needs to be replaced, rather than the entire mold, further saving maintenance costs.
[0037] Reference Figure 1 and Figure 6 When the first insert 31 and the second insert 32 with molding surfaces are installed on the fixed mold 2 and the moving mold 1, the first insert 31 and the second insert 32 form a flow channel when the mold is closed. When the first insert 31 and the second insert 32 without molding surfaces are installed on the fixed mold 2 and the moving mold 1, the first insert 31 and the second insert 32 abut against each other when the mold is closed.
[0038] Reference Figure 4 and Figure 9 The fixed mold 2 has a built-in armrest molding surface 21, which, combined with the replaceable first insert 31 and second insert 32, allows the mold to be compatible with the production of different types of products 6. When the insert with the molding surface is installed, the mold can manufacture products 6 with armrests 7, and the flow channel formed by the insert closing the mold helps the plastic raw material to fill evenly during the injection molding process, ensuring that the armrest 7 is completely molded. When it is necessary to produce products 6 without armrests 7, the insert without the molding surface is replaced. When they close the mold, they abut against each other, ensuring that the mold can still work normally, realizing the rapid switching production of different styles of products 6, and greatly improving the versatility of the mold.
[0039] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 The driving component 4 includes two hydraulic cylinders 41, each corresponding to a second insert 32. The two cylinders 41 are detachably connected to the moving mold 1. One end of the piston rod of each cylinder 41 is detachably connected to a second insert 32. Each second insert 32 has an insertion groove 322 that engages with the piston rod of the cylinder 41. When the second insert 32 is installed on the cylinder 41, the piston rod of the cylinder 41 engages with the insertion groove 322. Because the cylinders 41 are detachably connected to the moving mold 1, adjustments to the mold structure during production, such as replacing different insert components 3 to adapt to the production requirements of different products 6, can be easily made, enhancing the versatility and flexibility of the mold and increasing its usability.
[0040] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 Two slide rails 11 are fixedly connected to the moving mold 1. Each slide rail 11 corresponds to one of the two second inserts 32. Each of the two sets of second inserts 32 has a groove 321 adapted to the slide rail 11. The length direction of the groove 321 is consistent with the length direction of the slide rail 11. One end of each slide rail 11 can be inserted into the groove 321 of the corresponding second insert 32. The slide rail 11 provides a precise guide path for the sliding of the second insert 32. During the replacement of the second insert 32, it can be slid out or slid in to complete the disassembly or installation of the second insert 32, facilitating its installation. During injection molding, the second insert 32 can slide smoothly along a predetermined direction due to the constraint of the slide rail 11, avoiding deviation and ensuring the dimensional and shape accuracy of various parts of the product 6; reducing the possibility of structural deformation of the product 6 due to insert misalignment.
[0041] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 It also includes two limiting plates 42, each corresponding to a second insert 32. The two limiting plates 42 are fixedly connected to the hydraulic cylinders 41 and detachably connected to the moving mold 1. The two limiting plates 42 are threaded onto the moving mold 1 via second bolts, and abut against the corresponding slide rails 11. When the mold is in the open state, the two hydraulic cylinders 41 drive the second inserts 32 until they abut against the corresponding limiting plates 42. The detachable connection of the limiting plates 42 to the moving mold 1 facilitates disassembly for inspection and replacement, improving mold maintenance convenience. The limiting plates 42 also limit the movement of the second inserts 32; when the limiting plates 42 are removed, the second inserts 32 can slide off the slide rails 11.
[0042] Reference Figure 4 and Figure 9 It also includes two first bolts 311, each corresponding to one of the two first inserts 31. One end of each first bolt 311 passes through the corresponding first insert 31 and is threaded onto the fixed mold 2. When it is necessary to replace the first insert 31 to produce different products 6, or to perform maintenance on the insert, the insert can be removed from the fixed mold 2 simply by tightening the first bolts 311. Compared with other complex connection methods, this operation is simple and convenient, which can greatly shorten the mold downtime and improve production efficiency.
[0043] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.
Claims
1. A gang tool for injection moulding, comprising a movable die (1) and a fixed die (2) with two identical part forming surfaces for a product (6), characterised in that: Also include two sets of insert assembly (3) and driving member (4), wherein one set of the insert assembly (3) with handrail forming surface (21), two sets of the insert assembly (3) can be interchangeable on the movable die (1) and the fixed die (2), each set of the insert assembly (3) comprises a plurality of first insert (31) and a plurality of second insert (32), a plurality of the first insert (31) is respectively detachably connected on the fixed die (2), a plurality of the second insert (32) is respectively detachably connected on the movable die (1), and a plurality of the second insert (32) is respectively connected on the movable die (1), the driving member (4) is used for driving the sliding of the second insert (32).
2. An insert exchange injection mold according to claim 1, characterized in that: The fixed die (2) is provided with a handrail forming surface (21), when the first insert (31) and the second insert (32) with forming surface are installed on the fixed die (2) and the movable die (1), the first insert (31) and the second insert (32) of the set are formed when the mold is closed, and the flow channel is formed, when the first insert (31) and the second insert (32) without forming surface are installed on the fixed die (2) and the movable die (1), the first insert (31) and the second insert (32) of the set are abutted when the mold is closed.
3. An insert exchange injection mold according to claim 1, characterized in that: The driving member (4) comprises a plurality of oil cylinders (41), a plurality of the oil cylinders (41) correspond to a plurality of second inserts (32) respectively, a plurality of the oil cylinders (41) are detachably connected on the movable die (1), and one end of the piston rod of a plurality of the oil cylinders (41) is detachably connected on the second insert (32).
4. An insert exchange injection mold according to claim 3, characterized in that: The movable die (1) is provided with a plurality of slide rails (11), a plurality of the slide rails (11) correspond to a plurality of second inserts (32) respectively, and one end of a plurality of the slide rails (11) in the length direction can be provided in the corresponding second insert (32).
5. An insert exchange injection mold according to claim 4, characterized in that: Also include a plurality of limiting plates (42), a plurality of the limiting plates (42) correspond to a plurality of second inserts (32) respectively, a plurality of the limiting plates (42) are fixedly connected on the oil cylinder (41), a plurality of the limiting plates (42) are detachably connected on the movable die (1), and the limiting plate (42) abuts on the corresponding slide rail (11), when the mold is in the open mold state, a plurality of the oil cylinders (41) drive the second insert (32) until abutting on the corresponding limiting plate (42).
6. An insert exchange injection mold according to claim 1, characterized in that: Also include a plurality of first bolts (311), a plurality of the first bolts (311) correspond to a plurality of first inserts (31) respectively, one end of a plurality of the first bolts (311) is provided in the corresponding first insert (31) and is threadedly connected on the fixed die (2).