Polishing mold core edge anti-corner-collapse mold for injection molding shell

By designing a combination of a placement plate and a protective plate for the polishing mold used in injection molding, the problem of edge collapse during lens polishing was solved, achieving high-precision and high-efficiency polishing results and ensuring the integrity and appearance quality of the lens edges.

CN223776782UActive Publication Date: 2026-01-09WUJIANG XINYU PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202520301755.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-01-09
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

During lens manufacturing, edge collapse or deformation can easily occur during polishing, affecting the product's appearance quality and fit.

Method used

Design a polishing mold for injection molded housing, including a placement plate and a protective plate. The through holes on the placement plate and the cooperation of the protective plate prevent the polishing tool from contacting the lens edge, ensuring the integrity of the lens edge during the polishing process.

Benefits of technology

It improves polishing precision and efficiency, ensures the integrity and appearance quality of lens edges, and avoids corner collapse problems during the polishing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a polishing mold core edge anti-corner-collapse mold for an injection-molded shell, which comprises a placing plate for placing a remote controller injection-molded lens, and further comprises a protection plate which is used for contacting with the edge of the remote controller injection-molded lens and preventing corner collapse when the remote controller injection-molded lens is polished, a plurality of through holes matched with the remote controller injection molding lens in shape are formed in the protection plate, and the through holes of the protection plate correspond to the remote controller injection molding lens and are used for preventing the polishing mechanism from making contact with the remote controller injection molding lens during polishing. The problem of lens polishing edge corner collapse is solved through the synergistic effect of the containing plate and the protection plate, during operation, the containing plate is fixed to an operation table through the mounting holes, and a lens is placed in the containing groove to be positioned; during polishing, a tool only makes contact with the exposed area of the through hole, the protection plate prevents the tool from making contact with the edge, corner collapse is prevented, and the integrity of the edge of the lens and the polishing quality are guaranteed.
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Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to a polished mold core edge anti-collapse mold for injection molded shells. Background Technology

[0002] The injection-molded lens housing of a remote control is a transparent component, typically located in front of the infrared emitting diode, used for focusing and transmitting infrared signals. The design and manufacturing quality of the lens directly affect the signal transmission efficiency and user experience of the remote control.

[0003] However, existing technologies have some problems: In the traditional lens manufacturing process, polishing is a key step to improve the smoothness and optical performance of the lens surface. However, the polishing process is prone to edge collapse, that is, the edge area of ​​the lens collapses or deforms due to excessive polishing or uneven force. Collapse will cause unevenness or burrs on the lens edge, affecting the appearance quality of the product. At the same time, it will lead to poor fit between the lens and the remote control shell, resulting in gaps or looseness. Therefore, we propose a polishing mold core edge anti-collapse mold for injection molded shells. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a polishing mold core edge anti-collapse mold for injection molded housings. It solves the problem that in the traditional lens manufacturing process, polishing is a key step used to improve the surface smoothness and optical performance of the lens. However, the polishing process is prone to edge collapse.

[0005] This utility model is implemented as follows: a polishing mold core edge anti-collapse mold for injection molded housing includes a placement plate for placing a remote control injection molded lens, and a protective plate. The protective plate is used to contact the edge of the remote control injection molded lens and prevent corner collapse during polishing of the remote control injection molded lens. The protective plate has several through holes inside that conform to the shape of the remote control injection molded lens, and the through holes of the protective plate are correspondingly set with the remote control injection molded lens. During polishing, it is used to prevent the polishing mechanism from contacting the remote control injection molded lens.

[0006] As a preferred embodiment of this invention, the upper part of the placement plate is provided with a placement groove for placing the injection-molded lens of the remote control.

[0007] As a preferred embodiment of the present invention, a plurality of placement slots are provided, and the plurality of placement slots are arrayed on the upper part of the placement plate.

[0008] In a preferred embodiment of this invention, two adjacent placement slots are symmetrically arranged, and the placement plate has a protrusion that matches the shape of one side of the injection-molded lens of the remote control.

[0009] As a preferred embodiment of this utility model, the lower part of the protective plate has a recess, which fits into the protrusion of the placement plate, and there is a cavity between the protective plate and the guard plate for clamping and fixing the injection-molded lens of the remote control.

[0010] As a preferred embodiment of this utility model, the through hole of the protective plate is provided with a downward inclined groove, and the edge of the through hole of the protective plate is a protective edge that fits with the upper edge of the injection-molded lens of the remote control.

[0011] As a preferred embodiment of this utility model, the placement plate has a plurality of first mounting holes for being fixedly connected to the operating table by bolts, and the protective plate has a plurality of second mounting holes for being fixedly connected to the placement plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In use, the placement plate is fixed to the operating table with bolts through the first mounting hole to ensure the overall stability of the mold. Next, the remote control injection lens is placed into the placement groove on the placement plate, and precise positioning is achieved by utilizing the shape of the groove and the raised structure. Then, the recess at the bottom of the protective plate is inserted into the raised part of the placement plate to fit tightly with the edge of the through hole of the protective plate and the upper part of the lens, forming a clamping cavity to ensure that the lens will not move during the polishing process. Finally, during the polishing operation, the polishing tool only contacts the non-edge area of ​​the lens, that is, the exposed part of the through hole. The protective plate prevents the polishing tool from directly contacting the edge of the lens through physical barrier, thereby avoiding the problem of edge collapse. This design not only improves the polishing accuracy and efficiency, but also ensures the integrity and appearance quality of the lens edge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the overall exploded structure provided in an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the placement plate structure provided in an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the protective plate structure provided in an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the injection-molded lens structure of the remote control provided in this embodiment of the utility model.

[0019] In the diagram: 1. Placement plate; 2. Remote control injection-molded lens; 3. Protective plate;

[0020] 101. First mounting hole; 102. Protrusion; 103. Placement slot;

[0021] 201. Protective edge; 202. Sloping groove; 203. Second mounting hole; 204. Recess. Detailed Implementation

[0022] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0023] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1 to 5 As shown in the figure, the present invention provides a polishing mold core edge anti-collapse mold for injection molded housing, including a placement plate 1 for placing the remote control injection lens 2, and a protective plate 3. The protective plate 3 is used to contact the edge of the remote control injection lens 2 and prevent the corner from collapsing when polishing the remote control injection lens 2. The protective plate 3 has a plurality of through holes inside that conform to the shape of the remote control injection lens 2, and the through holes of the protective plate 3 are correspondingly arranged with the remote control injection lens 2. During polishing, it is used to prevent the polishing mechanism from contacting the remote control injection lens 2.

[0025] The above-mentioned anti-collapse corner mold for polishing mold cores of injection molded housings solves the problem of edge collapse during lens polishing through the synergistic effect of the placement plate 1 and the protective plate 3. The specific operation process is as follows:

[0026] Fixed placement plate 1: Fix placement plate 1 to the operating table bolts through the first mounting hole 101 to ensure mold stability;

[0027] Lens placement: Place the injection-molded lens 2 of the remote control into the placement slot 103 on the placement plate 1, and use the shape of the slot and the structure of the protrusion 102 to accurately position it;

[0028] Install the protective plate 3: Insert the recess 204 at the bottom of the protective plate 3 into the protrusion 102 of the placement plate 1 to fit together, so that the edge of the through hole of the protective plate 3 fits against the upper part of the lens to form a clamping cavity.

[0029] Polishing operation: The polishing tool only contacts the non-edge area of ​​the lens, that is, the exposed part of the through hole. The protective plate 3 prevents the tool from directly contacting the lens edge to prevent corner collapse.

[0030] In this embodiment, a placement slot 103 is provided on the upper part of the placement plate 1 for placing the injection-molded lens 2 of the remote control.

[0031] The placement groove 103 on the upper part of the placement plate 1 matches the shape of the injection-molded lens 2 of the remote control. The protrusion 102 in the groove matches the shape of one side of the lens, ensuring that the lens cannot move or shift during the polishing process. Through physical limiting and shape fitting, the positioning accuracy is improved and the lens displacement caused by vibration is avoided.

[0032] In this embodiment, multiple placement slots 103 are provided, and multiple placement slots 103 are arrayed on the upper part of the placement plate 1. The two adjacent placement slots 103 are symmetrically arranged. The placement plate 1 is provided with a protrusion 102 that matches the shape of one side of the injection-molded lens 2 of the remote control.

[0033] Multiple placement slots 103 are symmetrically distributed on the placement plate 1, allowing multiple lenses to be fixed simultaneously for batch polishing. The symmetrical design ensures that the polishing pressure is evenly distributed to each lens, avoiding overall mold deformation due to force on one side, while also improving processing efficiency.

[0034] In this embodiment, a recess 204 is provided at the lower part of the protective plate 3. The recess 204 of the protective plate 3 is inserted and matched with the protrusion 102 of the placement plate 1. There is a cavity between the protective plate 3 and the protective plate for clamping and fixing the injection-molded lens 2 of the remote control.

[0035] The recess 204 at the bottom of the protective plate 3 is inserted into the protrusion 102 of the placement plate 1 to form a tight fit. After insertion, the cavity between the protective plate 3 and the placement plate 1 clamps and fixes the lens, further restricting its movement. The insertion design also ensures that the relative positions of the protective plate 3 and the placement plate 1 are precisely aligned, avoiding the edge protection failure caused by the offset of the protective plate 3.

[0036] In this embodiment, a downward inclined groove 202 is provided at the through hole position of the protective plate 3, and the edge of the protected through hole is the protective edge 201, which is in contact with the upper edge of the injection-molded lens 2 of the remote control.

[0037] In this embodiment, the placement plate 1 has a plurality of first mounting holes 101 for connecting and fixing to the operating table by bolts, and the protective plate 3 has a plurality of second mounting holes 203 for connecting and fixing to the placement plate 1.

[0038] The first mounting hole 101 of the placement plate 1 is fixed to the operating table with bolts to prevent mold vibration or displacement during polishing; the second mounting hole 203 of the protective plate 3 is bolted to the placement plate 1 to ensure that the protective plate 3 does not loosen during high-pressure polishing. The double bolt fixing system ensures the overall rigidity of the mold and maintains the fit between the protective plate 3 and the lens edge.

[0039] The working principle of this utility model:

[0040] In use, the placement plate 1 is bolted to the operating table through the first mounting hole 101 to ensure the overall stability of the mold. Next, the remote control injection lens 2 is placed into the placement groove 103 on the placement plate 1, using the groove shape and the protrusion 102 structure for precise positioning. Then, the recess 204 at the bottom of the protective plate 3 is inserted into and aligns with the protrusion 102 on the placement plate 1, ensuring that the edge of the through hole in the protective plate 3 fits tightly against the upper part of the lens, forming a clamping cavity to ensure the lens does not move during polishing. Finally, during polishing, the polishing tool only contacts the non-edge area of ​​the lens, i.e., the exposed part of the through hole. The protective plate 3, through physical barrier, prevents the polishing tool from directly contacting the lens edge, thus avoiding edge collapse. This design not only improves polishing accuracy and efficiency but also ensures the integrity and appearance quality of the lens edge.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polished mold core edge anti-collapse mold for injection molded housing, comprising a placement plate (1) for placing a remote control injection lens (2), characterized in that: It also includes a protective plate (3) for contacting the edge of the remote control injection lens (2) and preventing corner collapse during polishing of the remote control injection lens (2). The protective plate (3) has several through holes that correspond to the shape of the remote control injection lens (2), and the through holes of the protective plate (3) are correspondingly set with the remote control injection lens (2). During polishing, the through holes are used to prevent the polishing mechanism from contacting the remote control injection lens (2).

2. The anti-collapse corner mold for polished mold core edges of injection molded housing as described in claim 1, characterized in that: The upper part of the placement plate (1) is provided with a placement groove (103) for placing the injection-molded lens (2) of the remote control.

3. The anti-collapse corner mold for polished mold core edges of injection molded housing as described in claim 2, characterized in that: Multiple placement slots (103) are provided, and multiple placement slots (103) are arrayed on the upper part of the placement plate (1).

4. The anti-collapse corner mold for polished mold core edges of injection molded housing as described in claim 2, characterized in that: The two adjacent placement slots (103) are symmetrically arranged, and the placement plate (1) is provided with a protrusion (102) that matches the shape of one side of the remote control injection lens (2).

5. The anti-collapse corner mold for polished mold core edges of injection molded housing as described in claim 4, characterized in that: The lower part of the protective plate (3) has a recess (204), and the recess (204) of the protective plate (3) is inserted into and matches the protrusion (102) of the placement plate (1). There is a cavity between the protective plate (3) and the protective plate for clamping and fixing the injection-molded lens (2) of the remote control.

6. The anti-collapse corner mold for polished mold core edges of injection molded housing as described in claim 5, characterized in that: The protective plate (3) has a downward inclined groove (202) at the through hole position, and the edge of the through hole of the protection is the protective edge (201), which is in contact with the upper edge of the remote control injection lens (2).

7. The anti-collapse corner mold for polished mold core edges of injection molded housing as described in claim 1, characterized in that: The placement plate (1) has several first mounting holes (101) for connecting and fixing to the operating table with bolts, and the protective plate (3) has several second mounting holes (203) for connecting and fixing to the placement plate (1).