Terminal injection molding and stamping integrated mold

Through the design of the terminal injection molding and stamping integral mold, the combination of injection molding and stamping components is solved, and the problem of deformation caused by changes in stress after injection molding of the terminal belt is improved, the efficiency and qualification rate of injection molding are ensured, and the quality of the product is ensured.

CN222201478UActive Publication Date: 2024-12-20MAIJIN PRECISION PARTS DONGGUAN
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Patent Information

Application Number
CN202420885361.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-25
Publication Date
2024-12-20
Estimated Expiration
2034-04-25

AI Technical Summary

Technical Problem

After the traditional terminal injection molding mold is injected into the terminal strip, the weight change of the terminal causes the stress in the terminal strip to change, resulting in the deformation of the terminal and affecting the pass rate.

Method used

Design a terminal injection molding and stamping integrated mold. Through the coordination between the upper mold seat and the lower mold seat, the internal stress of the terminal belt is released to prevent deformation by using the coordination between the injection molding lower part and the stamping lower part. The mold includes an upper mold seat and a lower mold seat. The upper mold is provided on the upper mold seat and the lower mold seat is provided on the lower mold seat. The injection molding lower part and the stamping lower part cooperate with each other for injection molding and stamping to ensure that the internal stress of the terminal belt is obtained release.

Benefits of technology

It improves the efficiency and pass rate of terminal injection molding, prevents deformation of terminal straps after injection molding, and improves product quality.

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Abstract

The utility model belongs to the technical field of molds, and particularly relates to a terminal injection molding and stamping integrated mold which comprises an upper mold base and a lower mold base, and the upper mold base is arranged above the lower mold base. A lower die is arranged on the lower die base, and an upper die corresponding to the lower die is arranged on the upper die base. Two injection molding lower parts and a punch molding lower part are arranged at the upper end of the lower mold, the punch molding lower part is arranged between the two injection molding lower parts, and an injection molding upper part corresponding to the injection molding lower parts and a punch molding upper part corresponding to the punch molding lower part are arranged at the lower end of the upper mold. The injection molding lower part and the injection molding upper part are matched with each other to carry out injection molding on the terminal, the punch molding lower part and the punch molding upper part are matched with each other to punch the terminal belt, and in the process, the terminal is subjected to injection molding, and the terminal belt releases internal stress due to the fact that the punch molding lower part and the punch molding upper part are matched with each other to punch; and the processed and molded terminal belt is not easy to deform.
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Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to an integrated terminal injection and stamping mold. Background Art

[0002] Terminals are components used to transmit electrical signals or conduct electricity. Due to their convenient connection performance, they are widely used in the connection of various electronic circuits. For example, a large number of terminals are used in automotive electronic products. With the development of automotive electronic products, terminal products formed by embedding copper terminals in plastic injection molding have gradually become mainstream. The excellent conductivity of copper terminals and the insulation of plastics make it possible to design and mold complex products. Embedded terminal injection molding parts are increasingly used in automotive electronic products. At the same time, automotive electronic products also have very strict functional requirements for embedded terminal injection molding parts, such as air tightness, resistance to electrical breakdown, cold and hot shock, etc. At present, traditional terminal injection molds can generally only perform injection molding on one terminal. Before molding the terminal, the terminal needs to be cut out from the terminal strip. After injection molding, the terminals need to be collected. The process is very troublesome and wastes manpower and material resources. However, if the terminal on the terminal strip is directly injection molded, the weight of the terminal will change after injection molding, and the internal stress of the terminal strip will also change, causing the terminal strip to deform, resulting in terminal deformation and affecting the qualified rate. Utility Model Content

[0003] The utility model aims to provide a terminal injection and stamping integrated mold, aiming to solve the technical problem of injection molding the terminals on the terminal strip in the prior art, because the weight of the terminal will change after injection molding, the internal stress of the terminal strip will also change, resulting in deformation of the terminal strip, resulting in deformation of the terminal, and affecting the technical problem of qualified rate.

[0004] To achieve the above-mentioned purpose, the embodiment of the utility model provides a terminal injection and stamping integrated mold, including an upper mold base and a lower mold base, wherein the upper mold base is arranged above the lower mold base. The lower mold base is provided with a lower mold, and the upper mold base is provided with an upper mold corresponding to the lower mold. The upper end of the lower mold is provided with two injection molding lower parts and a stamping molding lower part, and the stamping molding lower part is arranged between the two injection molding lower parts, and the lower end of the upper mold is provided with an injection molding upper part corresponding to the injection molding lower part and a stamping molding upper part corresponding to the stamping molding lower part.

[0005] Furthermore, the lower die base is provided with a plurality of guide posts, each of which is arranged on the upper surface of the lower die base and is perpendicular to the lower surface of the lower die base, and the upper die base is provided with a plurality of guide holes corresponding to the guide posts.

[0006] Furthermore, a mounting groove is provided at the upper end of the lower die base, the lower die is arranged in the mounting groove, and the height of the lower die is less than the height of the mounting groove. An air avoidance groove is also provided on the lower die base, the air avoidance groove is arranged along the length direction of the lower die base and passes through the mounting groove.

[0007] Furthermore, the two injection molding lower parts are respectively arranged on both sides of the lower mold, and the injection molding lower part includes a molding cavity, a first opening and a second opening, the first opening and the second opening are respectively located on both sides of the molding cavity, and the first opening is connected to the air avoidance groove, and the second opening is connected to the stamping molding lower part. The two injection molding upper parts are respectively arranged on both sides of the upper mold and are located directly above the injection molding lower parts. The injection molding upper part includes a first clamping block corresponding to the first opening and an injection hole arranged on the upper mold.

[0008] Furthermore, a positioning block group is provided in the molding cavity, and the injection molding upper part also includes a plurality of shaping block groups extending toward the molding cavity.

[0009] Furthermore, the stamping forming lower part includes a feeding groove, a positioning groove and a punching groove, the feeding groove is connected to the second opening, the positioning groove is arranged in the feeding groove, the punching groove is arranged in the positioning groove, and is perpendicular to the positioning groove and the punching groove passes through the positioning groove. The stamping forming upper part includes a locking block and a punching head, the locking block cooperates with the feeding groove and the positioning groove, and the punching head is slidably arranged on the upper mold and is located above the punching groove.

[0010] Furthermore, a waste collecting groove is provided on the lower die base, and the waste collecting groove is located below the stamping groove.

[0011] Furthermore, a cooling device is provided in the lower die base, and a heating device is provided on the upper die base.

[0012] The above one or more technical schemes in the terminal injection and stamping integrated mold provided by the embodiment of the utility model have at least one of the following technical effects: the terminal strip is placed on the lower mold base, and two adjacent terminals on the terminal strip are respectively placed in the two injection molding lower parts. At this time, the strip between the two terminals is placed in the stamping molding lower part, and the upper mold base moves toward the lower mold base. At this time, the upper mold and the lower mold are close to each other, and the injection molding lower part and the injection molding upper part cooperate with each other to injection mold the terminal, and the stamping molding lower part and the stamping molding upper part cooperate with each other to stamp the terminal strip. In this process, the terminal is injection molded, and the terminal strip is stamped by the stamping molding lower part and the stamping molding upper part, so as to release the internal stress of the terminal strip, so that the terminal strip after processing is not easy to deform, thereby improving the terminal injection molding efficiency and the terminal injection molding qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0014] Figure 1 An exploded schematic diagram of the terminal injection and stamping integrated mold provided in an embodiment of the utility model.

[0015] Figure 2 Another exploded schematic diagram of the terminal injection and stamping integrated mold provided in an embodiment of the utility model.

[0016] Among them, the figure marks in the figure are: 100, upper die seat; 110, upper mold; 120, injection molding upper part; 121, first clamping block; 122, injection hole; 123, shaping block group; 130, stamping molding upper part; 131, locking block; 132, punch head; 140, guide hole; 200, lower die seat; 210, lower mold; 220, injection molding lower part; 221, molding cavity; 222, first opening; 223, second opening; 224, positioning block group; 230, stamping molding lower part; 231, material trough; 232, positioning groove; 233, stamping groove; 240, guide column; 250, installation groove; 260, air avoidance groove; 270, waste collection groove. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0018] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0020] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0021] In one embodiment of the present invention, reference Figure 1~Figure 2 As shown, a terminal injection and stamping integrated mold is provided, comprising an upper mold base 100 and a lower mold base 200, wherein the upper mold base 100 is arranged above the lower mold base 200. A lower mold 210 is arranged on the lower mold base 200, and an upper mold 110 corresponding to the lower mold 210 is arranged on the upper mold base 100. Two injection molding lower parts 220 and a stamping molding lower part 230 are arranged at the upper end of the lower mold 210, and the stamping molding lower part 230 is arranged between the two injection molding lower parts 220, and an injection molding upper part 120 corresponding to the injection molding lower part 220 and a stamping molding upper part 130 corresponding to the stamping molding lower part 230 are arranged at the lower end of the upper mold 110. In this embodiment, the terminal strip is placed on the lower mold base 200, and two adjacent terminals on the terminal strip are respectively placed in the two injection molding lower parts 220. At this time, the strip between the two terminals is placed in the stamping molding lower part 230, and the upper mold base 100 moves toward the lower mold base 200. At this time, the upper mold 110 and the lower mold 210 are close to each other, and the injection molding lower part 220 and the injection molding upper part 120 cooperate with each other to injection mold the terminals, and the stamping molding lower part 230 and the stamping molding upper part 130 cooperate with each other to stamp the terminal strip. In this process, the terminals are injection molded, and the terminal strip is stamped by the stamping molding lower part 230 and the stamping molding upper part 130, so as to release the internal stress of the terminal strip, so that the terminal strip after processing is not easy to deform, thereby improving the terminal injection molding efficiency and the terminal injection molding qualification rate.

[0022] Specifically, refer to Figure 1~Figure 2As shown, the lower die base 200 is also provided with a plurality of guide posts 240, each guide post 240 is arranged on the upper surface of the lower die base 200 and is perpendicular to the lower surface of the lower die base 200, and the upper die base 100 is provided with a plurality of guide holes 140 corresponding to the guide posts 240. In this embodiment, through the mutual cooperation of the guide posts 240 and the guide holes 140, the upper die base 100 moves in the same direction each time, so that the upper die 110 and the lower die 210 can reach the correct position each time they cooperate, thereby improving the qualified rate of the product.

[0023] Specifically, refer to Figure 1~Figure 2 As shown, the upper end of the lower die base 200 is also provided with a mounting groove 250, and the lower die 210 is arranged in the mounting groove 250, and the height of the lower die 210 is less than the height of the mounting groove 250. The lower die base 200 is also provided with an air avoidance groove 260, which is arranged along the length direction of the lower die base 200 and passes through the mounting groove 250. In this embodiment, the mounting groove 250 is used to position the lower die 210, and the air avoidance groove 260 allows the terminal strip to continuously pass through the lower die 210, which is convenient for operation.

[0024] Specifically, refer to Figure 1~Figure 2 As shown, the two injection molding lower parts 220 are respectively arranged on both sides of the lower mold 210, and the injection molding lower part 220 includes a molding cavity 221, a first opening 222 and a second opening 223. The first opening 222 and the second opening 223 are respectively located on both sides of the molding cavity 221, and the first opening 222 is connected to the air avoidance groove 260, and the second opening 223 is connected to the stamping molding lower part 230. The two injection molding upper parts 120 are respectively arranged on both sides of the upper mold 110, and are located directly above the injection molding lower parts 220. The injection molding upper part 120 includes a first clamping block 121 corresponding to the first opening 222 and an injection hole 122 arranged on the upper mold 110. In this embodiment, the injection hole 122 is used for spraying injection molding material, and the first opening 222 cooperates with the first clamping block 121 to make the outer side of the upper mold 110 and the lower mold 210 sealed after cooperation to prevent the injection molding material from flowing out.

[0025] Specifically, refer to Figure 1~Figure 2 As shown, a positioning block group 224 is also provided in the molding cavity 221, and the injection molding upper part 120 further includes a plurality of shaping block groups 123 extending toward the molding cavity 221. The positioning block group 224 is used to position the terminal, and the shaping block group 123 is used to shape the injection molding appearance of the terminal.

[0026] Specifically, refer to Figure 1~Figure 2As shown, the stamping lower part 230 includes a feed slot 231, a positioning slot 232 and a stamping slot 233. The feed slot 231 is connected to the second opening 223. The positioning slot 232 is arranged in the feed slot 231. The stamping slot 233 is arranged in the positioning slot 232 shown, and is perpendicular to the positioning slot 232 and the stamping slot 233 passes through the positioning slot 232. The stamping upper part 130 includes a locking block 131 and a punch head 132. The locking block 131 cooperates with the feed slot 231 and the positioning slot 232. The punch head 132 is slidably arranged on the upper mold 110 and is located above the stamping slot 233. In this embodiment, the terminal strip is placed in the positioning slot 232, the locking block 131 locks the terminal strip, and then the punch head 132 moves toward the stamping slot 233 to stamp the terminal strip. The terminal strip after punching can release its own stress to avoid deformation of the terminal strip after terminal injection molding.

[0027] Specifically, refer to Figure 1~Figure 2 As shown, a waste collection groove 270 is also provided on the lower die base 200, and the waste collection groove 270 is located below the punching groove 233. In this embodiment, the waste collection groove 270 is used to collect the waste dropped from the punching groove 233 and clean it regularly.

[0028] Specifically, refer to Figure 1~Figure 2 As shown, a cooling device is provided in the lower mold base 200, and a heating device is provided on the upper mold base 100. In this embodiment, a cooling device is provided in the lower mold base 200, and a heating device is provided on the upper mold base 100, so that the injection material can be kept in a molten state in the upper mold base 100 before injection molding, and can be quickly cooled after injection molding, thereby increasing the injection molding speed.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A terminal injection and stamping integrated mold, comprising an upper mold base and a lower mold base, wherein the upper mold base is arranged above the lower mold base; characterized in that: A lower mold is provided on the lower mold base, and an upper mold corresponding to the lower mold is provided on the upper mold base; the upper end of the lower mold is provided with two injection molding lower parts and a stamping molding lower part, and the stamping molding lower part is arranged between the two injection molding lower parts, and the lower end of the upper mold is provided with an injection molding upper part corresponding to the injection molding lower part and a stamping molding upper part corresponding to the stamping molding lower part.

2. The terminal injection and stamping integrated mold according to claim 1, characterized in that: The lower die base is also provided with a plurality of guide posts, each of which is arranged on the upper surface of the lower die base and is perpendicular to the lower surface of the lower die base, and the upper die base is provided with a plurality of guide holes corresponding to the guide posts.

3. The terminal injection and stamping integrated mold according to claim 1, characterized in that: The upper end of the lower die base is also provided with a mounting groove, the lower die is arranged in the mounting groove, and the height of the lower die is less than the height of the mounting groove; the lower die base is also provided with an air avoidance groove, the air avoidance groove is arranged along the length direction of the lower die base and the air avoidance groove passes through the mounting groove.

4. The terminal injection and stamping integrated mold according to claim 3, characterized in that: The two injection molding lower parts are respectively arranged on both sides of the lower mold, and the injection molding lower part includes a molding cavity, a first opening and a second opening, the first opening and the second opening are respectively located on both sides of the molding cavity, and the first opening is connected to the air avoidance groove, and the second opening is connected to the stamping molding lower part; the two injection molding upper parts are respectively arranged on both sides of the upper mold, and are located directly above the injection molding lower part; the injection molding upper part includes a first clamping block corresponding to the first opening and an injection hole arranged on the upper mold.

5. The terminal injection and stamping integrated mold according to claim 4, characterized in that: A positioning block group is also arranged in the molding cavity, and the injection molding upper part also includes a plurality of shaping block groups extending toward the molding cavity.

6. The terminal injection and stamping integrated mold according to claim 4, characterized in that: The stamping forming lower part includes a feed trough, a positioning groove and a stamping groove, the feed trough is connected to the second opening, the positioning groove is arranged in the feed trough, the stamping groove is arranged in the positioning groove, is perpendicular to the positioning groove and the stamping groove passes through the positioning groove; the stamping forming upper part includes a locking block and a stamping head, the locking block cooperates with the feed trough and the positioning groove, and the stamping head is slidably arranged on the upper mold and is located above the stamping groove.

7. The terminal injection and stamping integrated mold according to claim 6, characterized in that: The lower die base is also provided with a waste collecting groove, and the waste collecting groove is located below the stamping groove.

8. The terminal injection and stamping integrated mold according to any one of claims 1 to 7, characterized in that: A cooling device is arranged in the lower die seat, and a heating device is arranged on the upper die seat.