Button cover forming die

Abstract

This utility model discloses a button cover molding die, including a moving die, a first-color fixed die, and a second-color fixed die. The moving die includes a moving template, a moving core, a moving die fixing plate, and a moving die ejection mechanism. The first-color fixed die includes a first-color fixed template, a first-color fixed core, a first-color fixed die top plate, and a first-color fixed die fixing plate. The second-color fixed die includes a second-color fixed template, a second-color fixed core, a second-color fixed die top plate, and a second-color fixed die fixing plate. The moving core has two annular grooves, and at least one side of each annular groove has a moving die ejector groove. A first-color flow channel connects the two annular grooves. The second-color fixed die includes two recessed annular grooves connected by a lateral flow channel. A protruding annular retaining ring is provided within each recessed annular groove. This utility model can achieve separate molding of the transparent layer and the aperture layer, resulting in high molding quality and ensuring the product's appearance integrity and light transmittance.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and more specifically, to a button cover molding mold. Background Technology

[0002] There is a type of car button cover such as Figure 1 and Figure 2 As shown, the product includes a transparent layer a at the bottom, a mold b on the transparent layer a, a support layer c on the mold b, and an aperture layer d on the mold b and outside the support layer c. The aperture layer d and the transparent layer a have very high requirements for appearance and light transmission. If the edges and corners are damaged, it will affect the light guiding effect of the product. Therefore, it is necessary to design a corresponding mold for the product to manufacture and form the product with high quality. Utility Model Content

[0003] This invention overcomes the shortcomings of the prior art. Its structural design is reasonable and can realize the separate molding of the transparent layer and the aperture layer. The molding quality is high, which ensures the appearance integrity and light transmittance of the product.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A button cover molding die includes a movable die, a first-color fixed die, and a second-color fixed die. The movable die includes a movable template, a movable mold core, a movable die fixing plate, and a movable die ejection mechanism. The first-color fixed die includes a first-color fixed template, a first-color fixed mold core, a first-color fixed die top plate, and a first-color fixed die fixing plate. The second-color fixed die includes a second-color fixed template, a second-color fixed mold core, a second-color fixed die top plate, and a second-color fixed die fixing plate. The movable mold core has two annular grooves, and at least one side of each annular groove has a movable die ejector pin groove. The grooves are connected by a first-color runner. The second-color mold core includes two recessed annular grooves connected by a lateral runner. A protruding annular retaining ring is provided in the recessed annular groove. A forming protrusion and multiple forming grooves are provided on the inner side of the annular retaining ring. A forming insert is provided in the forming groove. A forming hole is also provided on the inner side of the annular retaining ring. A second-color mold ejector pin groove is also provided in the recessed annular groove. A submarine gate is also provided on the second-color mold core. A synchronous mold locking buckle is provided between the second-color mold plate and the second-color mold top plate.

[0006] By adopting the above technical solution, the first color mold is mainly used to form a transparent layer and fuse the transparent layer with the mold plate. The mold plate is pre-printed with a character ring. During molding, the mold plate is placed on the moving mold core, specifically above the annular groove. Then, molten plastic flows from the first color runner into the annular groove to form the transparent layer, and the mold plate fuses with the transparent layer. The moving mold is rotated and faces the second color fixed mold. In the second color fixed mold, the recessed annular groove is used to form the ring layer, while the structure inside the annular retaining ring is used to form the support layer. Molten plastic enters the inner side of the annular retaining ring through the submarine gate and forms the support layer. Molten plastic enters the recessed annular groove through the lateral runner to form the ring layer. When the mold is opened, the product is first ejected from the second color fixed mold core by the synchronous mold locking buckle. After the mold opening stroke is completed, the product is demolded by the moving mold ejection mechanism. This design allows for the separate molding of the transparent layer and the aperture layer, resulting in high molding quality and ensuring excellent product appearance integrity and light transmittance.

[0007] Preferably, a positioning protrusion is provided on one side of the annular groove on the moving mold core.

[0008] By adopting the above technical solution, the positioning protrusion can effectively position the mold piece placed on the moving mold core. Specifically, a slot can be opened on the moving mold core, the positioning protrusion is fixed in the slot and protrudes from the moving mold core, and a positioning hole corresponding to the positioning protrusion can be opened on the mold piece. In this way, the mold piece can be positioned when it is placed. It should be noted that after the injection molding of the entire product is completed, the product needs to be machined to form the actual required product shape.

[0009] Preferably, the top end of the moving mold ejector pin groove is provided with an extended groove that connects to the annular groove.

[0010] By adopting the above technical solution, the extension groove is mainly designed to facilitate product demolding, and the part formed by the extension groove can be removed in subsequent processing.

[0011] Preferably, the lateral flow channel includes a lateral main flow channel and two lateral branch flow channels communicating with the lateral main flow channel, and the two lateral branch flow channels are respectively connected to two recessed annular grooves.

[0012] By adopting the above technical solution, the molten plastic enters from the side main channel, and after passing through two side branch channels, it enters the recessed annular groove, thus realizing the formation of the aperture layer.

[0013] Preferably, the moving mold core is provided with a gate channel that communicates with the submarine gate.

[0014] By adopting the above technical solution, the setting of the gating channel makes it easy to allow molten plastic to enter the submarine gating, thereby completing the injection molding of the support layer.

[0015] Preferably, a fixed mold ejection mechanism is provided between the second color moving template and the second color fixed mold top plate. The fixed mold ejection mechanism includes a fixed mold ejection plate and a fixed mold ejection pad. The fixed mold ejection pad is provided with a fixed mold ejector pin that matches the fixed mold ejector pin groove of the second color. The molding insert is fixedly installed on the fixed mold ejection pad.

[0016] By adopting the above technical solution, the fixed mold ejection mechanism can eject the product from the second-color fixed mold core with the action of the synchronous mold locking buckle, and the molding insert is fixedly installed on the fixed mold ejection pad, so that the molding insert can be well fixed.

[0017] The beneficial effects of this utility model are:

[0018] This utility model has a reasonable structural design, which can realize the separate molding of the transparent layer and the aperture layer, and the molding quality is high, so that the appearance integrity and light transmittance of the product are well guaranteed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the button cover in a specific embodiment of the present utility model;

[0020] Figure 2 This is an exploded view of the button cover according to a specific embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of a specific embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram illustrating the structure of the moving mold core in a specific embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram illustrating the structure of the first color mold core in a specific embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram illustrating the structure of the second-color mold core in a specific embodiment of this utility model;

[0025] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0026] Figure 8 This is a schematic diagram illustrating the structure of the fixed mold ejection mechanism in a specific embodiment of this utility model;

[0027] Figure 9 This is a schematic diagram illustrating the flow channel structure when forming the support layer and the aperture layer in a specific embodiment of this utility model;

[0028] In the diagram: a) Transparent layer; b) Template; c) Support layer; d) Aperture layer; 100) Moving mold; 101) Moving template; 102) Moving mold fixing plate; 103) Moving mold ejection mechanism; 200) First color fixed mold; 201) First color fixed template; 202) First color fixed mold core; 203) First color fixed mold top plate; 204) First color fixed mold fixing plate; 300) Second color fixed mold; 301) Second fixed template; 302) Second color fixed mold top plate; 303) Second color fixed mold fixing plate; 1) Moving mold core; 11) Annular groove; 12. Moving mold ejector slot; 13. First color runner; 14. Positioning protrusion; 15. Extension groove; 16. Sprue channel; 2. Second color fixed mold core; 21. Recessed annular groove; 22. Side runner; 221. Side main runner; 222. Side branch runner; 23. Annular retaining ring; 24. Molding protrusion; 25. Molding groove; 26. Molding insert; 27. Molding hole; 28. Second color fixed mold ejector slot; 29. ​​Submerged gate; 3. Synchronous mold locking buckle; 4. Fixed mold ejection mechanism; 41. Fixed mold ejection plate; 42. Fixed mold ejection pad. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1-9As shown, a button cover molding die includes a movable die 100, a first-color fixed die 200, and a second-color fixed die 300. The movable die 100 includes a movable template 101, a movable die core 1, a movable die fixing plate 102, and a movable die ejection mechanism 103. The first-color fixed die 200 includes a first-color fixed template 201, a first-color fixed die core 202, a first-color fixed die top plate 203, and a first-color fixed die fixing plate 204. The second-color fixed die 300 includes a second-color fixed template, a second-color fixed die core 2, a second-color fixed die top plate 302, and a second-color fixed die fixing plate 303. The movable die core 1 is provided with two annular grooves 11, and at least one side of the annular groove 11 is provided with a movable die top plate. The pin groove 12 is connected to the first color runner 13 between the two annular grooves 11. The second color mold core 2 includes two recessed annular grooves 21, which are connected by a lateral runner 22. A protruding annular retaining ring 23 is provided in the recessed annular groove 21. A forming protrusion 24 and multiple forming grooves 25 are provided on the inner side of the annular retaining ring 23. A forming insert 26 is provided in the forming groove 25. A forming hole 27 is also provided on the inner side of the annular retaining ring 23. A second color mold ejector pin groove 28 is also provided in the recessed annular groove 21. A submarine gate 29 is also provided on the second color mold core 2. A synchronous mold locking buckle 3 is provided between the second color mold plate and the second color mold top plate 302.

[0031] By adopting the above technical solution, the first color mold is mainly used to form the transparent layer a and fuse the transparent layer a with the mold piece b. The mold piece b has a character ring pre-printed on it. During the forming process, the mold piece b is placed on the moving mold core 1, specifically above the annular groove 11. Then, the molten plastic flows from the first color distribution channel 13 into the annular groove 11 to form the transparent layer a, and the mold piece b will fuse with the transparent layer a. The rotating mold 100 is positioned opposite the second-color fixed mold 300. In the second-color fixed mold 300, the recessed annular groove 21 is used to form the aperture layer d, while the structure inside the annular retaining ring 23 is used to form the support layer c. Molten plastic enters the inner side of the annular retaining ring 23 through the submarine gate 29 and forms the support layer c. The molten plastic also passes through the lateral runner 22 to recess the annular groove 21 to form the aperture layer d. During mold opening, the synchronous mold locking buckle 3 first drives the second-color fixed mold top plate 302 to eject the product from the second-color fixed mold core 2. Once the mold opening stroke is complete, the moving mold ejection mechanism 103 demolds the product. This configuration allows for the separate forming of the transparent layer a and the aperture layer d, resulting in high forming quality and ensuring excellent product appearance integrity and light transmittance.

[0032] A positioning protrusion 14 is provided on one side of the annular groove 11 on the moving mold core 1. The positioning protrusion 14 can effectively position the mold piece b placed on the moving mold core 1. Specifically, a slot can be opened in the moving mold core 1, the positioning protrusion 14 is fixed in the slot and protrudes from the moving mold core 1, and a positioning hole corresponding to the positioning protrusion 14 is opened in the mold piece b. In this way, the mold piece b can be positioned when it is placed. It should be noted that after the injection molding of the entire product is completed, the product needs to be machined to form the actual required product shape.

[0033] To facilitate product demolding, the top of the moving mold ejector pin groove 12 is provided with an extended groove 15 that connects to the annular groove 11, and the part of the extended groove 15 formed can be removed in subsequent processing.

[0034] The lateral flow channel 22 includes a lateral main flow channel 221 and two lateral branch flow channels 222 connected to the lateral main flow channel 221. The two lateral branch flow channels 222 are respectively connected to two recessed annular grooves 21. Molten plastic enters from the lateral main flow channel 221 and enters the recessed annular grooves 21 after passing through the two lateral branch flow channels 222 respectively, thus realizing the forming of the aperture layer d.

[0035] Furthermore, the moving mold core 1 is provided with a gate channel 16 that is connected to the submarine gate 29. The gate channel 16 facilitates the entry of molten plastic into the submarine gate 29, thereby completing the injection molding of the support layer c.

[0036] A fixed mold ejection mechanism 4 is provided between the second color moving template 101 and the second color fixed mold top plate 302. The fixed mold ejection mechanism 4 includes a fixed mold ejection plate 41 and a fixed mold ejection pad 42. The fixed mold ejection pad 42 is provided with a fixed mold ejector pin (not shown in the figure) that is adapted to the second color fixed mold ejector pin groove 28. The molding insert 26 is fixedly installed on the fixed mold ejection pad 42. The fixed mold ejection mechanism 4 can realize the ejection of the product from the second color fixed mold core 2 with the action of the synchronous mold locking buckle 3. By fixing the molding insert 26 on the fixed mold ejection pad 42, the molding insert 26 can be well fixed.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A button cover molding die, comprising a movable die (100), a first color fixed die (200), and a second color fixed die (300), wherein the movable die (100) comprises a movable template (101), a movable mold core (1), a movable die fixing plate (102), and a movable die ejection mechanism (103); the first color fixed die (200) comprises a first color fixed template (201), a first color fixed mold core (202), a first color fixed die top plate (203), and a first color fixed die fixing plate (204); and the second color fixed die (300) comprises a second color fixed template, a second color fixed mold core (2), a second color fixed die top plate (302), and a second color fixed die fixing plate (303), characterized in that, The moving mold core (1) is provided with two annular grooves (11), and at least one side of the annular grooves (11) is provided with a moving mold ejector groove (12). A first color flow channel (13) is connected between the two annular grooves (11). The second color fixed mold core (2) includes two recessed annular grooves (21), which are connected by a lateral flow channel (22). A protruding annular retaining ring (23) is provided in the recessed annular groove (21). 3) The inner side is provided with forming protrusions (24) and multiple forming grooves (25). The forming grooves (25) are provided with forming inserts (26). The inner side of the annular retaining ring (23) is also provided with forming holes (27). The recessed annular groove (21) is also provided with a second color mold ejector pin groove (28). The second color mold core (2) is also provided with a submarine gate (29). The second color mold plate and the second color mold top plate (302) are provided with a synchronous mold locking buckle (3).

2. The button cover forming mold according to claim 1, characterized in that, A positioning protrusion (14) is provided on one side of the annular groove (11) on the moving mold core (1).

3. The button cover forming mold according to claim 2, characterized in that, The top end of the moving mold ejector groove (12) is provided with an extended groove (15) that connects to the annular groove (11).

4. A button cover forming mold according to claim 1, 2, or 3, characterized in that, The lateral flow channel (22) includes a lateral main flow channel (221) and two lateral branch flow channels (222) connected to the lateral main flow channel (221). The two lateral branch flow channels (222) are respectively connected to two recessed annular grooves (21).

5. The button cover forming mold according to claim 4, characterized in that, The moving mold core (1) is provided with a gating channel (16) that is connected to the submarine gate (29).

6. A button cover forming mold according to claim 5, characterized in that, A fixed mold ejection mechanism (4) is provided between the second color moving template (101) and the second color fixed mold top plate (302). The fixed mold ejection mechanism (4) includes a fixed mold ejection plate (41) and a fixed mold ejection pad (42). A fixed mold ejection pin that matches the second color fixed mold ejection pin groove (28) is provided on the fixed mold ejection pad (42). The molding insert (26) is fixedly installed on the fixed mold ejection pad (42).

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