Glue sealing structure of plastic-coated metal part mold
By using a planar through-sealing method and CNC machining to form sealing steps in the mold of plastic-encased metal parts, the problems of burrs and glue overflow caused by improper sealing gaps were solved, thereby improving product yield and production stability.
Patent Information
- Application Number
- CN202520424723.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-11
AI Technical Summary
In the production of molds for metal parts in plastic packaging, improper sealing gaps can lead to problems such as burrs, excess glue, and mold damage to metal parts, affecting product yield and production stability.
A planar through-sealing method is adopted, and a sealing step is added at the junction of the metal and plastic parts through CNC machining. The top of the metal part is left unopened, and the precision of the step surface is improved by CNC machining. An encapsulated part is set at the bottom of the step to enhance the sealing effect.
It effectively solves the risk of molds damaging metal parts, reduces burrs and excess glue, and improves product yield and production stability.
Smart Images
Figure CN223904325U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould production technical field, concretely relates to a plastic metal part mould glue sealing structure. BACKGROUND
[0002] In the plastic metal part mould production, the glue sealing cooperation of the combination of plastic and metal part position needs to be guaranteed, especially when the product structure requires the metal part surface to be higher than the plastic surface, the higher metal part side needs to be matched with the mould zero to zero glue sealing.
[0003] Because it is the side surface insertion mode, when the glue sealing gap is too large, the product will have the problems of burr and glue overflow, which makes the operation difficult when processing the burr and glue overflow with the cutter later, and the metal surface is easily scratched, causing product defects, resulting in the reduction of product yield, and the overall mass production and stability are poor, and when the glue sealing gap is too small, the mould may be pressed during mould closing, which directly leads to the scrap of the metal part, and the production cost is high. UTILITY MODEL CONTENTS
[0004] The utility model discloses a plastic metal part mould glue sealing structure.
[0005] The utility model discloses a plastic metal part mould glue sealing structure.
[0006] The plastic part and the metal part, the metal part includes the emptying portion and the step portion, and the step portion is glued and attached with the plastic part.
[0007] As a further description of the above technical scheme, the step portion of the metal part is glued and attached with the inner contour of the plastic part through the plane collision.
[0008] As a further description of the above technical scheme, the step portion is formed on the bottom edge of the emptying portion.
[0009] As a further description of the above technical scheme, the step portion of the metal part is glued and attached with the inner contour of the plastic part through the plane collision.
[0010] As a further description of the above technical scheme, the step portion of the metal part is glued and attached with the inner contour of the plastic part through the plane collision.
[0011] As a further description of the above technical scheme, the step portion of the metal part is glued and attached with the inner contour of the plastic part through the plane collision.
[0012] As a further description of the above technical scheme, the step portion of the metal part is glued and attached with the inner contour of the plastic part through the plane collision.
[0013] As a further description of the above technical solution, the height of the encapsulation part is 0.4-0.6mm.
[0014] As a further description of the above technical solution, the extension width of the step surface of the step part and the encapsulation part is equal.
[0015] As a further description of the above technical solution, the extension width of the step surface of the step part and the encapsulation part is 0.4-0.6mm.
[0016] The beneficial effects of the utility model are as follows:
[0017] 1. The utility model discloses a new sealing step at the sealing position of the combination part of metal parts and plastic parts, which is specially used for sealing, changes the original side insertion sealing mode into a plane collision sealing mode, the sidewall of the top of the metal part is kept away from the plastic part, so that the metal part does not participate in sealing, and the risk of die pressure injury of the metal part is effectively solved.
[0018] 2. The utility model discloses a step part formed by the CNC processing mode, which improves the step surface precision, guarantees the die sealing effect, solves the die burr and overflow problems, and effectively improves the product yield and production stability.
[0019] To make the structure features and effects of the utility model clearer, the utility model will be described in detail below by combining the drawings and specific embodiments. DRAWINGS
[0020] Figure 1 It is the structure schematic diagram of the plastic metal part die sealing structure of the utility model,
[0021] Figure 2 It is the structure schematic diagram of the metal part of the utility model Figure 1 ;
[0022] Figure 3 It is the structure schematic diagram of the metal part of the utility model Figure 2 .
[0023] Reference signs:
[0024] 1. Plastic part; 2. Metal part; 21. Avoidance part; 22. Step part; 23. Encapsulation part. CONCRETE EMBODIMENT
[0025] To make the structure features and effects of the utility model clearer, the utility model will be described in detail below by combining the drawings and specific embodiments.
[0026] Embodiment one:
[0027] For example, Figures 1-2As shown, in one embodiment, a plastic metal part mold glue sealing structure, comprising: plastic part 1 and metal part 2, metal part 2 includes the hollow part 21 and the step part 22, the step part 22 and the plastic part 1 glue sealing.
[0028] Need to be explained in detail, the plug refers to a component through another component of the opening or interstice is inserted, form connection or contact, often need to insert an object into another object inside, usually used for sealing, fixed, transmission, etc. Occasions, involving the relative motion of two objects, need to be inserted into the precise alignment and ensure the firmness of the connection; and the impact of the wear refers to the surface of the two objects after the collision or contact through, cut into the way, often used in need of contact through the penetration of the connection, such as some mechanical connection in the pressure or cut into the sealing design, rely on the impact of the penetration effect, often used in need of penetration or cutting by the influence of force, similar to the breakdown or stamping.
[0029] Specifically, the outer contour of the step part 22 of the metal part 2 and the inner contour of the plastic part 1 are glued and attached by plane collision. It can be understood that the new glue step is added at the glue sealing position of the combination part of the metal part 2 and the plastic part 1, which is used for sealing, and the original side plug sealing method is changed to plane collision sealing method, and the sidewall of the top of the metal part 2 is avoided with the plastic part 1, so that it does not participate in the sealing, effectively solving the risk of mold pressure injury of the metal part 2.
[0030] Please continue to refer to Figures 1-2 In this embodiment, the step part 22 is shaped at the bottom edge of the hollow part 21 by computer numerical control (CNC), so that the outer contour of the hollow part 21 of the metal part 2 and the inner contour of the plastic part 1 are avoided.
[0031] It can be understood that when the step part 22 is formed by CNC machining, the size and position of the step surface can be accurately controlled, thereby effectively improving the accuracy of the step surface, avoiding the phenomenon of burr and overflow of the edge, and effectively improving the yield and production stability of the product. Specifically, the height of the step part 22 is 0.4-0.6mm.
[0032] Example two:
[0033] Please continue to refer to Figure 3 In this embodiment, the step part 22 is shaped at the bottom edge of the hollow part 21 by computer numerical control (CNC), so that the outer contour of the hollow part 21 of the metal part 2 and the inner contour of the plastic part 1 are avoided.
[0034] Further, the encapsulation part 23 is formed at the bottom edge of the step part 22.
[0035] Through the above technical solution, the application adds an encapsulation step at the encapsulation part of the combination part of the metal part 2 and the plastic part 1, which is specially used for encapsulation, changes the original side insertion and penetration encapsulation mode to a plane collision and penetration encapsulation mode, and the side wall of the top of the metal part 2 is avoided from the plastic part 1, so that it does not participate in encapsulation, effectively solving the risk of mold pressure injury of the metal part 2; the step part 22 is formed by CNC processing, improving the step surface precision, ensuring the mold encapsulation effect, solving the mold burr and overflow problem, effectively improving the product yield and production stability; the bottom of the step part 22 is further provided with the encapsulation part 23, further enhancing the encapsulation effect, ensuring that the plastic part 1 can be firmly attached to the bottom of the step part 22 during the encapsulation process, avoiding the phenomenon of encapsulation loosening or falling off caused by poor adhesion of the glue.
[0036] The above description of disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A plastic metal package mold encapsulation structure, characterized in that, The utility model relates to a plastic and metal joint, comprising: a plastic part (1) and a metal part (2), the metal part (2) comprising a hollow (21) and a step (22), the step (22) and the plastic part (1) are glued together.
2. The plastic metal piece encapsulation structure of claim 1, wherein, The outer contour of the hollow (21) of the metal part (2) and the inner contour of the plastic part (1) are hollowed out.
3. The plastic metal piece encapsulation structure of claim 1, wherein, The outer contour of the step (22) of the metal part (2) and the inner contour of the plastic part (1) are glued together by a plane.
4. The plastic metal piece encapsulation structure of claim 3, wherein, The step (22) is shaped at the bottom edge of the hollow (21).
5. The plastic metal piece encapsulation structure of claim 3, wherein, The bottom of the step (22) is provided with a rubber-coated part (23), which is shaped at the bottom edge of the step (22).
6. The plastic metal piece encapsulation structure of claim 5, wherein, The height of the step (22) and the rubber-coated part (23) is equal.
7. The plastic metal piece encapsulation structure of claim 5, wherein, The height of the step (22) is 0.4-0.6mm.
8. The plastic metal piece encapsulation structure of claim 5, wherein, The height of the rubber-coated part (23) is 0.4-0.6mm.
9. The plastic metal piece encapsulation structure of claim 5, wherein, The step face extension width of the step (22) and the rubber-coated part (23) is equal.
10. The plastic metal piece encapsulation structure of claim 9, wherein, The step face extension width of the step (22) and the rubber-coated part (23) is 0.4-0.6mm.