Cooperative-working injection mold

Abstract

The injection mold comprises a basic mold and an additional mold, the basic mold is provided with a basic cavity and a component cavity, the basic cavity is used for forming a basic structure, the component cavity is used for forming a connecting piece, one end of the connecting piece is connected to the basic structure, and the other end of the connecting piece is connected to the additional mold. The additional mold is provided with a positioning cavity, a connecting cavity and an additional cavity, the positioning cavity is used for placing the foundation structure, the connecting cavity is communicated with the positioning cavity, and under the condition that the foundation structure is placed in the positioning cavity, the connecting piece is located in the connecting cavity, and a gap exists between the connecting piece and the inner wall of the connecting cavity. The additional cavity communicates with the connecting cavity and is used for forming an additional structure. And performing injection molding twice to obtain a complete product with a complex structure or made of different materials. Carrying out first injection molding to form a base structure and a connecting piece; and in the second injection molding process, the connecting piece is coated with the material in the molten state, so that the molded additional structure is firmly connected with the base structure.

Description

Technical Field

[0001] The present application relates to the field of molds, and in particular to a cooperatively working injection mold. Background Art

[0002] Injection molding is a processing method for mass production of parts with complex shapes. The specific process is to inject the heated and molten plastic into the mold cavity of the mold under high pressure by the injection molding machine, and then obtain a formed plastic product after cooling and solidification.

[0003] Injection molding can also use multiple molds working together to produce a single product with a complex structure or composed of different materials. Summary of the invention

[0004] In order to produce a single product with a complex structure or composed of different materials, the present application provides an injection mold that works in coordination.

[0005] The collaborative injection mold provided in this application adopts the following technical solution: A collaborative injection mold, comprising a base mold and an additional mold, The basic mold is provided with a basic cavity and a component cavity. The basic cavity is used to form a basic structure. The component cavity is connected to the base cavity, and the component cavity is used to form a connector, and one end of the connector along the X direction is connected to the base structure. The additional mold is provided with a positioning cavity, a connecting cavity and an additional cavity. The positioning cavity is used for placing the basic structure, and the connecting cavity is connected to the positioning cavity. When the basic structure is placed in the positioning cavity: the connecting piece is located in the connecting cavity, there is a gap between the other end of the connecting piece along the X direction and the inner wall of the connecting cavity, and there is a gap between one end of the connecting piece along the Y direction and the inner wall of the connecting cavity. The Y direction is perpendicular to the X direction. The additional cavity is connected to the connecting cavity, and the additional cavity is used for forming an additional structure.

[0006] By adopting the above technical solution, a complete product with a complex structure or composed of different materials can be obtained by two injection moldings. The first injection molding is used to mold the basic structure and the connecting parts; during the second injection molding, the molten material covers the connecting parts, so that the additional structure and the basic structure after molding are firmly connected.

[0007] Preferably, the component cavity is also used to form a connecting block, which is connected to the other end of the connecting piece along the Y direction. When the basic structure is placed in the positioning cavity: the connecting block is located in the connecting cavity.

[0008] By adopting the above technical solution, during the second injection molding process, the molten material covers the connecting parts and the connecting blocks, ensuring a firm connection between the additional structure and the basic structure after molding.

[0009] Preferably, the component cavity is used to form a plurality of spaced-apart connecting blocks.

[0010] By adopting the above technical solution, it is ensured that the additional structure and the basic structure are firmly connected after being formed.

[0011] Preferably, the end of the connecting block away from the connecting piece along the Y direction is used to fit with the inner wall of the connecting cavity. The other end of the connecting piece along the Y direction is used to fit with the inner wall of the connecting cavity.

[0012] By adopting the above technical solution, accurate positioning is achieved, which is beneficial to the accurate positioning of the additional structure and the basic structure after forming.

[0013] Preferably, the basic mold is provided with a basic injection flow channel. The basic injection molding runner is connected to the basic cavity. The basic injection molding flow channel and the component cavity are not directly connected.

[0014] By adopting the above technical solution, the nozzle material and the connecting piece produced by injection molding are not directly connected. When the nozzle material is removed, the connecting piece will not be damaged, ensuring that the connecting piece is intact, so that the additional structure and the basic structure after molding are firmly connected.

[0015] Preferably, the additional mold is provided with an additional injection flow channel. The additional injection channel is connected to the additional cavity. The additional injection molding flow channel and the connecting cavity are not directly connected.

[0016] By adopting the above technical solution, a large amount of molten material can be prevented from flowing through the connecting piece, and a large amount of molten material can be prevented from eroding the connecting piece, which is conducive to ensuring a firm connection between the additional structure and the basic structure after molding.

[0017] Preferably, the component cavity includes a transverse cavity, a longitudinal cavity and an embedded cavity, and the connecting piece includes a transverse plate, a longitudinal plate and an embedded plate. The transverse cavity is used to form a transverse plate, one end of which along the X direction is connected to the base structure. The longitudinal cavity is used to form a longitudinal plate. There is a gap between the longitudinal plate and the basic structure. One end of the longitudinal plate is connected to one end of the transverse plate along the Y direction. The embedding cavity is used to form an embedding plate, there is a gap between the embedding plate and the basic structure, and the embedding plate is connected to the other end of the longitudinal plate. When the basic structure is placed in the positioning cavity, there is a distance between the embedded plate and the inner wall of the connecting cavity, and there is a distance between the longitudinal plate and the inner wall of the connecting cavity.

[0018] By adopting the above technical solution, during the second injection molding process, the molten material covers the connecting parts in multiple directions, ensuring a firm connection between the additional structure and the basic structure after molding.

[0019] Preferably, when the basic structure is placed in the positioning cavity: the other end of the transverse plate along the Y direction is attached to the inner wall of the connecting cavity.

[0020] By adopting the above technical solution, accurate positioning is achieved, which is beneficial to the accurate positioning of the additional structure and the basic structure after forming.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. Two injection molding to obtain a complete product with complex structure or composed of different materials; 2. The first injection molding is used to mold the basic structure and the connecting parts; during the second injection molding process, the molten material covers the connecting parts to ensure a firm connection between the molded additional structure and the basic structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the injection molds working together.

[0023] Figure 2 It is a cross-sectional schematic diagram of the basic mold.

[0024] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0025] Figure 4 It is a schematic diagram of the component cavity and basic injection molding runner.

[0026] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0027] Figure 6 It is a cross-sectional schematic diagram of the additional mold.

[0028] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0029] Explanation of the accompanying drawings: 1. Basic mold; 11. Basic cavity; 12. Component cavity; 121. Transverse cavity; 122. Longitudinal cavity; 123. Embedded cavity; 124. Groove; 13. Basic injection molding channel; 2. Additional mold; 21. Positioning cavity; 22. Connecting cavity; 23. Additional cavity; 24. Additional injection molding channel; 31. Basic structure; 32. Connector; 321. Transverse plate; 322. Longitudinal plate; 323. Embedded plate; 33. Connecting block; 34. Additional structure. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] Reference Figure 1 , an embodiment of the present application discloses a cooperatively working injection mold, including a basic mold 1 and an additional mold 2.

[0032] Reference Figure 2 and Figure 3 The basic mold 1 is provided with a basic cavity 11 and a component cavity 12.

[0033] The basic cavity 11 is used to form the basic structure 31 . The component cavity 12 is connected to the basic cavity 11 , and the component cavity 12 is used to form the connecting piece 32 .

[0034] One end of the connecting member 32 along the X direction is connected to the basic structure 31 .

[0035] The component cavity 12 includes a transverse cavity 121 , a longitudinal cavity 122 and an embedding cavity 123 . The connecting member 32 includes a transverse plate 321 , a longitudinal plate 322 and an embedding plate 323 .

[0036] The transverse cavity 121 is directly connected to the basic cavity 11. The transverse cavity 121 is used to form the transverse plate 321, and one end of the transverse plate 321 along the X direction is connected to the basic structure 31.

[0037] The longitudinal cavity 122 is directly connected to the transverse cavity 121, and the longitudinal cavity 122 is connected to the basic cavity 11 through the transverse cavity 121. The longitudinal cavity 122 is used to form the longitudinal plate 322, and a gap exists between the longitudinal plate 322 and the basic structure 31, and one end of the longitudinal plate 322 is connected to one end of the transverse plate 321 along the Y direction. The Y direction is perpendicular to the X direction.

[0038] The embedding cavity 123 is directly connected to the longitudinal cavity 122, and the embedding cavity 123 is connected to the basic cavity 11 through the longitudinal cavity 122 and the transverse cavity 121. The embedding cavity 123 is used to form the embedding plate 323, and a gap exists between the embedding plate 323 and the basic structure 31. The embedding plate 323 is connected to the other end of the longitudinal plate 322.

[0039] Reference Figure 4 and Figure 5 , the component cavity 12 also includes a groove 124.

[0040] The grooves 124 are arranged at intervals on the inner wall of the embedding cavity 123. The grooves 124 are used to shape the connection block 33, and the connection block 33 is connected to the end of the embedding plate 323 away from the longitudinal plate 322.

[0041] Reference Figure 2 and Figure 3 The basic mold 1 is provided with a basic injection flow channel 13. The basic injection flow channel 13 is connected to the basic cavity 11. The basic injection flow channel 13 and the component cavity 12 are not directly connected.

[0042] Reference Figure 6 and Figure 7 The additional mold 2 is provided with a positioning cavity 21, a connecting cavity 22 and an additional cavity 23.

[0043] The positioning cavity 21 is used for placing the basic structure 31 , and the connecting cavity 22 is directly connected to the positioning cavity 21 .

[0044] When the basic structure 31 is placed in the positioning cavity 21: the connecting piece 32 and the connecting block 33 are both located in the connecting cavity 22, the surface of the transverse plate 321 facing away from the longitudinal plate 322 is attached to the inner wall of the connecting cavity 22, there is a gap between the longitudinal plate 322 and the inner wall of the connecting cavity 22, there is a gap between the embedded plate 323 and the inner wall of the connecting cavity 22, and the connecting block 33 is attached to the inner wall of the connecting cavity 22.

[0045] The additional cavity 23 is directly connected to the connecting cavity 22 , and the additional cavity 23 is used to form the additional structure 34 .

[0046] The additional mold 2 is provided with an additional injection channel 24. The additional injection channel 24 is directly connected to the additional cavity 23. The additional injection channel 24 and the connection cavity 22 are not directly connected.

[0047] It should be noted that: finally, the accessory structure and the basic structure 31 form a complete single product, that is, there is no joint seam around the connecting piece 32 and the connecting block 33 .

[0048] The implementation principle of a cooperative injection mold in the embodiment of the present application is: two injection moldings are performed to obtain a complete product with a complex structure or composed of different materials. The first injection molding is used to mold the basic structure 31 and the connecting piece 32; during the second injection molding, the molten material covers the connecting piece 32, so that the additional structure 34 and the basic structure 31 are firmly connected after molding.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cooperative injection mold, characterized in that: It comprises a basic mold (1) and an additional mold (2), The basic mold (1) is provided with a basic mold cavity (11) and a component mold cavity (12). The basic cavity (11) is used to form a basic structure. The component cavity (12) is connected to the base cavity (11), and the component cavity (12) is used to form a connecting piece, one end of the connecting piece along the X direction is connected to the base structure. The additional mold (2) is provided with a positioning cavity (21), a connecting cavity (22) and an additional cavity (23). The positioning cavity (21) is used for placing the basic structure, and the connecting cavity (22) is connected to the positioning cavity (21). When the base structure is placed in the positioning cavity (21), the connecting piece is located in the connecting cavity (22), a distance exists between the other end of the connecting piece along the X direction and the inner wall of the connecting cavity (22), and a distance exists between one end of the connecting piece along the Y direction and the inner wall of the connecting cavity (22). The Y direction is perpendicular to the X direction. The additional cavity (23) is connected to the connecting cavity (22), and the additional cavity (23) is used to form an additional structure.

2. The cooperative injection mold according to claim 1, characterized in that: The component cavity (12) is also used to form a connecting block, which is connected to the other end of the connecting piece along the Y direction. When the basic structure is placed in the positioning cavity (21), the connection block is located in the connection cavity (22).

3. The cooperative injection mold according to claim 2, characterized in that: The component cavity (12) is used to form a plurality of spaced-apart connection blocks.

4. The cooperative injection mold according to claim 2 or 3, characterized in that: The end of the connection block away from the connection piece along the Y direction is used to fit with the inner wall of the connection cavity (22). The other end of the connecting piece along the Y direction is used to fit with the inner wall of the connecting cavity (22).

5. The cooperative injection mold according to claim 1, characterized in that: The basic mold (1) is provided with a basic injection flow channel (13). The basic injection molding flow channel (13) is connected to the basic mold cavity (11). The basic injection molding flow channel (13) and the component cavity (12) are not directly connected.

6. The cooperative injection mold according to claim 1, characterized in that: The additional mold (2) is provided with an additional injection flow channel (24). The additional injection molding flow channel (24) is connected to the additional mold cavity (23). The additional injection molding flow channel (24) and the connecting cavity (22) are not directly connected.

7. The cooperative injection mold according to claim 1, characterized in that: The component cavity (12) comprises a transverse cavity (121), a longitudinal cavity (122) and an embedding cavity (123); the connecting piece comprises a transverse plate, a longitudinal plate and an embedding plate. The transverse cavity (121) is used to form a transverse plate, one end of the transverse plate along the X direction is connected to the base structure. The longitudinal cavity (122) is used to form a longitudinal plate. There is a gap between the longitudinal plate and the base structure. One end of the longitudinal plate is connected to one end of the transverse plate along the Y direction. The embedding cavity (123) is used to form an embedding plate, there is a spacing between the embedding plate and the base structure, and the embedding plate is connected to the other end of the longitudinal plate. When the base structure is placed in the positioning cavity (21), there is a spacing between the embedded plate and the inner wall of the connecting cavity (22), and there is a spacing between the longitudinal plate and the inner wall of the connecting cavity (22).

8. The cooperative injection mold according to claim 7, characterized in that: When the basic structure is placed in the positioning cavity (21), the other end of the transverse plate along the Y direction is attached to the inner wall of the connecting cavity (22).

Images