Injection mold for frameless door and window sealing strip

Abstract

The utility model discloses a frameless door and window sealing strip injection mold belongs to sealing strip injection mold technical field, including upper stifled board and lower stifled board, the bottom of upper stifled board is provided with upper formboard no.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology for sealing strips, and more specifically, to an injection mold for a frameless car door and window sealing strip. Background Technology

[0002] Frameless doors are a significant design trend in modern automobiles, offering substantial advantages in aesthetics and vehicle body rigidity. However, the sealing performance of frameless doors directly impacts cabin noise, airtightness, and wind resistance. Therefore, the sealing strip, as a critical component, requires special attention. Conventional frameless internal water-cutting injection molds employ a three-plate mold with three-point injection. During injection, the material must slowly flow from the center of the runner plate to the three injection points on the product. The excessively long runner, while part of the molded material, is not considered part of the final product. Consequently, the entire injection molding process results in material waste and an excessively long molding cycle, leading to low production efficiency. To address this, we propose a frameless door and window sealing strip injection mold. Utility Model Content

[0003] In view of the problems mentioned in the background art above, the purpose of this utility model is to provide a frameless car door and window sealing strip injection mold.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A frameless car door and window sealing strip injection mold includes an upper plate and a lower plate. An upper template 1 is located at the bottom of the upper plate, a heat insulation plate is located at the bottom of the upper template 1, an upper template 2 is located at the bottom of the heat insulation plate, and an upper template 3 is located at the bottom of the upper template 2. A lower template is located at the top of the lower plate. A hydraulic cylinder is fixedly installed at the rear of the lower template. An accessory 8 is fixedly connected to the output end of the hydraulic cylinder. The end of accessory 8 is slidably connected to the top of the lower plate. Two mold cores 3 are slidably connected to the top of the lower template. The sliding rod at the bottom of each mold core 3 is slidably connected to an inclined sliding groove on accessory 8. Two accessories 3 are fixedly connected to the output end of the hydraulic cylinder. Mold cores 1 are fixedly connected to the two accessories 3. Accessories 4 are rotatably connected to both sides of the lower template. Accessories 5 are fixedly connected to the ends of the two accessories 4. Mold cores 4 are fixedly installed on the sides of each of the two accessories 5. Mold cores 2 are located on each of the two mold cores 4. A heating tube is located on the back of the upper template 3.

[0006] As a preferred embodiment of this utility model, the side of the lower template is provided with accessory seven, and a stainless steel support frame is provided on accessory seven.

[0007] As a preferred embodiment of this utility model, accessories six are provided on both sides of the lower template.

[0008] As a preferred embodiment of this utility model, accessory 1 is provided on both sides of the upper template 1, accessory 2 is provided on each accessory 1, the bottom end of accessory 2 is connected to the side of the upper template 3, indexing pin is provided on accessory 2, and square iron is provided on both sides of the upper and lower blocking plates.

[0009] As a preferred embodiment of this utility model, a copper plug is provided inside the upper blocking plate, a positioning ring is provided on the top of the upper blocking plate, and a cold flow channel is provided on the inner side of the positioning ring.

[0010] As a preferred embodiment of this utility model, a four-pin or six-pin aviation plug fixing plate is provided on the side of the lower template, and an oil connector is provided on the four-pin or six-pin aviation plug fixing plate.

[0011] The advantages of this utility model are:

[0012] In this invention, the semi-finished rubber strip to be injected is placed into a cavity composed of mold core one, mold core two, mold core three, and mold core four. Injection is performed into the cavity through a cold runner. Simultaneously, the upper mold plate three is heated through heating pipes, oil connectors, and a four-pin / six-pin mounting plate to ensure that the molten plastic flowing from the upper mold plate three is always in a molten state. This allows the molten plastic to adhere to the end of the semi-finished rubber strip. The runner system is innovatively designed by incorporating a rubber needle valve cold runner system. During each injection, the raw materials in the cold runner remain in a high-temperature molten state, providing excellent flowability for the rubber compound. Furthermore, the number of injection points per product has been reduced from three to two, shortening the product molding cycle, reducing raw material waste, significantly improving factory production efficiency, and lowering production costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is an exploded view of the overall structure of this utility model.

[0015] Explanation of the labels in the diagram:

[0016] 1. Upper blanking plate; 2. Upper template one; 3. Heat insulation plate; 4. Upper template two; 5. Upper template three; 6. Lower template; 7. Lower blanking plate; 8. Cold runner; 9. Positioning ring; 10. Copper plug; 11. Accessory one; 12. Heating tube; 13. Accessory two; 14. Square iron; 15. Oil connector; 16. Four-pin and six-pin aviation plug fixing plate; 17. Accessory three; 18. Mold core one; 19. Mold core two; 20. Indexing pin; 21. Accessory four; 22. Accessory five; 23. Accessory six; 24. Stainless steel support frame; 25. Mold core three; 26. Mold core four; 27. Accessory seven; 28. Hydraulic cylinder; 29. ​​Accessory eight. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Example:

[0021] Please see Figure 1-2A frameless car door and window sealing strip injection mold includes an upper mold plate 1 and a lower mold plate 7. An upper template 1 2 is located at the bottom of the upper mold plate 1, a heat insulation plate 3 is located at the bottom of the upper template 1 2, an upper template 2 4 is located at the bottom of the heat insulation plate 3, and an upper template 3 5 is located at the bottom of the upper template 2 4. A lower mold plate 6 is located at the top of the lower mold plate 7. A hydraulic cylinder 28 is fixedly installed at the rear of the lower mold plate 6. An accessory 29 is fixedly connected to the output end of the hydraulic cylinder 28. The end of accessory 29 is slidably connected to the top of the lower mold plate 7, and the top of the lower mold plate 6 is slidably connected to... There are two mold cores 25. The slide rod at the bottom of the mold core 25 is slidably connected to the inclined slide groove on the accessory 29. The output end of the oil cylinder 28 is fixedly connected to two accessories 17. Mold core 18 is fixedly connected to the two accessories 17. Accessories 21 are rotatably connected to both sides of the lower template 6. Accessories 22 are fixedly connected to the ends of the two accessories 21. Mold core 26 is fixedly installed on the sides of the two accessories 22. Mold core 29 is provided on the two mold cores 26. Heating tube 12 is provided on the back of the upper template 35.

[0022] In this embodiment, mold core 18, mold core 29, mold core 325, and mold core 426 form a cavity for injection molding.

[0023] For details, please refer to Figure 1 and Figure 2 The lower template 6 is provided with accessory 7 27 on its side, and stainless steel support frame 24 is provided on accessory 7 27.

[0024] In this embodiment, a stainless steel support frame 24 is used to support the semi-finished rubber strip to be injected, while one end of the semi-finished rubber strip is inserted into the cavity.

[0025] For details, please refer to Figure 2 Accessory 623 is provided on both sides of the lower template 6.

[0026] For details, please refer to Figure 2 Both sides of the upper template 12 are provided with accessory 11, and accessory 2 13 is provided on accessory 11. The bottom end of accessory 2 13 is connected to the side of the upper template 3 5. Indexing pin 20 is provided on accessory 2 13. Square iron 14 is provided on both sides of the upper platen 1 and the lower platen 7.

[0027] For details, please refer to Figure 2 The upper baffle plate 1 has a copper plug 10 inside, a positioning ring 9 on the top of the upper baffle plate 1, and a cold flow channel 8 on the inner side of the positioning ring 9.

[0028] In this embodiment, the copper tube in the upper block plate 1 is sealed by the copper plug 10, and the cavity is injected through the cold runner 8.

[0029] For details, please refer to Figure 2The side of the lower template 6 is provided with a four-pin or six-pin aviation plug fixing plate 16, and an oil connector 15 is provided on the four-pin or six-pin aviation plug fixing plate 16.

[0030] Working principle: In use, the semi-finished rubber strip to be injected is first placed into the cavity formed by the combination of mold core 18, mold core 29, mold core 35, and mold core 46, and injection is performed from the cold runner 8 into the two cavities. At the same time, the upper mold plate 35 is heated through the heating pipe 12, oil connector 15, and four-pin and six-pin mounting plate 16 to ensure that the molten plastic flowing from the upper mold plate 35 is always in a molten state, so that the molten plastic is connected to the end of the semi-finished rubber strip. Then, the upper sealing plate 1... 1. Move the upper template 1 2, heat insulation plate 3, upper template 2 4, and upper template 3 5 upward to open the mold. At this time, start the hydraulic cylinder 28 to drive accessory 3 17 and mold core 1 18 to move backward, and at the same time drive accessory 8 29 to move backward. Use the sliding between accessory 8 29 and mold core 3 25 to bring the two mold cores 3 25 closer to each other. Then, hold accessory 4 21 and press it down. Use accessory 4 21 to drive accessory 5 22, mold core 2 19, and mold core 4 26 to flip up. Finally, take out the formed sealing strip.

[0031] 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 its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A frameless car door and window sealing strip injection mold, characterized in that: The assembly includes an upper platen (1) and a lower platen (7). The bottom of the upper platen (1) is provided with an upper template 1 (2), the bottom of the upper template 1 (2) is provided with a heat insulation plate (3), the bottom of the heat insulation plate (3) is provided with an upper template 2 (4), the bottom of the upper template 2 (4) is provided with an upper template 3 (5), and the top of the lower platen (7) is provided with a lower template (6). A hydraulic cylinder (28) is fixedly installed at the rear of the lower template (6). The output end of the hydraulic cylinder (28) is fixedly connected to an accessory 8 (29). The end of the accessory 8 (29) is slidably connected to the top of the lower platen (7). The top of the lower template (6) is slidably connected to two molds. The core three (25) has a sliding rod at the bottom of the core three (25) that is slidably connected to the inclined groove on the accessory eight (29). The output end of the oil cylinder (28) is fixedly connected to two accessories three (17). The two accessories three (17) are fixedly connected to the core one (18). The two sides of the lower template (6) are respectively rotatably connected to accessories four (21). The ends of the two accessories four (21) are respectively fixedly connected to accessories five (22). The sides of the two accessories five (22) are fixedly installed with core four (26). The two core four (26) are each provided with core two (19). The back of the upper template three (5) is provided with a heating tube (12).

2. The frameless car door and window sealing strip injection mold according to claim 1, characterized in that: The lower template (6) is provided with accessory seven (27) on its side, and a stainless steel support frame (24) is provided on accessory seven (27).

3. The frameless car door and window sealing strip injection mold according to claim 1, characterized in that: Accessory 6 (23) is provided on both sides of the lower template (6).

4. The frameless car door and window sealing strip injection mold according to claim 1, characterized in that: Both sides of the upper template 1 (2) are provided with accessory 1 (11), and accessory 2 (13) is provided on accessory 1 (11). The bottom end of accessory 2 (13) is connected to the side of the upper template 3 (5). Indexing pin (20) is provided on accessory 2 (13). Square iron (14) is provided on both sides of the upper platen (1) and the lower platen (7).

5. The injection mold for a frameless door and window seal strip of claim 1, wherein: The upper baffle (1) is provided with a copper plug (10) inside, and a positioning ring (9) is provided on the top of the upper baffle (1). A cold flow channel (8) is provided on the inner side of the positioning ring (9).

6. The frameless car door and window sealing strip injection mold according to claim 1, characterized in that: The side of the lower template (6) is provided with a four-pin six-pin aviation plug fixing plate (16), and an oil connector (15) is provided on the four-pin six-pin aviation plug fixing plate (16).

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