Car door glass mud groove corner injection mold
By using inserts to form the cavity in the injection mold for the corner joint of the car door glass groove and combining it with a cylinder and roller pressing mechanism, the problem of the material arching and not fitting properly with the sheet metal is solved, realizing efficient automatic mold insertion, reducing the labor intensity of workers and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGHAI HESHI PLASTIC CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-03
Smart Images

Figure CN224446695U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding technology for corner joints of car door glass grooves, and more specifically, to injection molds for corner joints of car door glass grooves. Background Technology
[0002] The door glass mudguard is a sealing strip fitted onto the door glass guide channel. During the raising and lowering of the door glass, the mudguard directly contacts the door glass, providing shock absorption, reducing noise, and guiding the glass movement. In the door system, the mudguard also acts as a sealant against dust and water. Because the mudguard encloses the glass guide channel and has part of its surface exposed on both the inner and outer sides of the door, it also contributes to the overall aesthetics of the vehicle. Existing molds for the mudguard's A-pillar end cap and corner joint are difficult to insert due to their hard cross-section. Previous molds used cylinder-assisted insertion to reduce labor intensity, but the mechanical insertion action resulted in the material arching and not fitting properly to the sheet metal. Workers had to manually press and pat the material into place before injection molding, which was physically demanding and affected production efficiency. Therefore, we proposed a door glass mudguard corner joint 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 an injection mold for the corner joint of the door glass mud groove.
[0004] To solve the above problems, the present invention adopts the following technical solution:
[0005] A door glass groove corner injection mold includes an upper obstruction plate and a lower obstruction plate. The bottom of the upper obstruction plate has an upper template, and the top of the lower obstruction plate has a lower mold pad. The top of the lower mold pad has a lower template. Two accessories (9) are fixedly installed on the lower obstruction plate, and accessories (10) are fixedly connected to the ends of the two accessories (9). A cylinder (3) is fixedly installed on accessory (10), and the output end of the cylinder (3) is fixedly connected to accessory (8). The end of accessory (8) is movably sleeved to the top of the lower mold pad and fixedly connected to accessory (2). Accessory (2) has a core insert (3), and a core insert (3) has a core insert (2). Accessory (2) has an accessory (1) and a core insert (2) has a core insert (1). Accessory (12) is located on the top of the lower template, and a cylinder (1) is located on the side of accessory (12). The output end of the cylinder (1) is fixedly connected to accessory (3). The end of accessory three is movably sleeved to the top of accessory twelve and fixedly connected to insert eight. Insert seven is provided on the top of insert eight. Cylinder No. 2 is provided on the side of the lower template. Accessory eleven is fixedly connected to the output end of cylinder No. 2. Insert six is provided on accessory eleven. Insert five is provided at the end of insert eight. Insert four is provided at the end of insert seven. Accessory seven is provided on the side of the lower mold pad. Cylinder No. 4 is provided on the side of accessory seven. Accessory five is fixedly connected to the output end of cylinder No. 4. Insert six is provided on insert five. Accessory four is provided on the side of the lower template. Roller pressing mechanism is provided on accessory four. Insert nine is provided on the top of the lower blanking plate. The top of insert nine extends through the lower mold pad and the lower template to the top of accessory twelve.
[0006] As a preferred embodiment of this utility model, a positioning ring is provided on the top of the upper sealing plate, and a sprue sleeve is provided on the inner side of the positioning ring.
[0007] As a preferred embodiment of this utility model, a plurality of tie rods are fixedly installed at the bottom of the upper plate, and the plurality of tie rods are respectively movably connected to the upper template.
[0008] As a preferred embodiment of this utility model, a positioning post is fitted onto the upper template.
[0009] As a preferred embodiment of this utility model, a plurality of coiled blue springs are sleeved between the lower sealing plate and the lower template.
[0010] As a preferred embodiment of this utility model, the inner sides of the inserts 1, 2, 3, 4, 5, 6, 7, 8 and 9 are combined with cavities for placing glass trough corner injection molding.
[0011] The advantages of this utility model are:
[0012] In this invention, a cavity for injection molding is formed by inserts one, two, three, four, five, six, seven, eight, and nine. A No. 4 cylinder drives the sheet metal insert to retract, allowing the top strip material to be manually inserted into the sheet metal. The No. 4 cylinder then drives a mechanism to guide the top strip material into place. The rollers on the roller pressing mechanism ensure the top strip material adheres to the sheet metal. Vertical strip materials are then manually inserted, achieving mold insertion for both the top and vertical strip materials. This structural innovation changes the design concept by adding a roller pressing mechanism to the existing cylinder-assisted insertion. After the cylinder completes the material pushing action, the worker operates the roller mechanism to precisely push the material in through the guide rail, flattening it. Compared to manual pressing, this method is more labor-saving, time-saving, and accurate, greatly reducing the labor intensity of workers while improving product production efficiency and meeting customer capacity requirements. 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] Figure 3 This is a schematic diagram showing the disassembly of the upper blocking plate, upper template, and lower mold pad of this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the lower sealing plate of this utility model.
[0017] Explanation of the labels in the diagram:
[0018] 1. Upper die plate; 2. Upper template; 3. Lower template; 4. Lower mold pad; 5. Lower die plate; 6. Positioning ring; 7. Sprue sleeve; 8. Tie rod; 9. Positioning post; 10. Core insert one; 11. Core insert two; 12. Accessory one; 13. Core insert three; 14. Core insert four; 15. Core insert five; 16. Accessory two; 17. Roller pressing mechanism; 18. Accessory four; 19. Accessory five; 20. Accessory six; 21. Accessory seven; 22. Accessory eight; 23. Coiled blue spring; 24. Accessory nine; 25. Accessory ten; 26. Cylinder No. 3; 27. Core insert six; 28. Core insert seven; 29. Core insert eight; 30. Accessory eleven; 31. Accessory twelfth; 32. Accessory three; 33. Core insert nine; 34. Cylinder No. 1; 35. Cylinder No. 4; 36. Cylinder No. 2; 37. Insert strip sheet metal. Detailed Implementation
[0019] 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.
[0020] 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.
[0021] 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.
[0022] Example:
[0023] Please see Figure 1-4The injection mold for the corner joint of the car door glass groove includes an upper blanking plate 1 and a lower blanking plate 5. An upper template 2 is located at the bottom of the upper blanking plate 1, and a lower mold pad 4 is located at the top of the lower blanking plate 5. A lower template 3 is located at the top of the lower mold pad 4. Two accessories 9 24 are fixedly installed on the lower blanking plate 5. Accessories 10 25 are fixedly connected to the ends of the two accessories 9 24. A third cylinder 26 is fixedly installed on accessory 10 25, and accessory 8 22 is fixedly connected to the output end of the third cylinder 26. Part 8 22 is movably sleeved to the top of the lower mold base plate 4 and fixedly connected to accessory 2 16. Accessory 2 16 is provided with insert 3 13, insert 3 13 is provided with insert 2 11, insert 2 11 is provided with accessory 1 12, insert 2 11 is provided with insert 1 10. Accessory 12 31 is provided on the top of the lower mold plate 3. Accessory 12 31 is provided with cylinder 34 on its side. Accessory 32 32 is fixedly connected to the output end of cylinder 34. Accessory 33 32 33 is fixedly connected to the top of the lower mold base plate 4 and accessory 3 32 3 ... The end of component 2 is movably sleeved to the top of component 12 31 and fixedly connected to insert 8 29. Insert 7 28 is provided on the top of insert 8 29. Cylinder 2 36 is provided on the side of the lower mold plate 3. Component 11 30 is fixedly connected to the output end of cylinder 2 36. Insert 6 27 is provided on component 11 30. Insert 5 15 is provided at the end of insert 8 29. Insert 4 14 is provided at the end of insert 7 28. Component 7 21 is provided on the side of the lower mold pad 4. Accessory 7 21 has a No. 4 cylinder 35 on its side. Accessory 5 19 is fixedly connected to the output end of No. 4 cylinder 35. Accessory 5 19 has a strip sheet metal 37. Accessory 6 20 is installed on the strip sheet metal 37. Accessory 4 18 is installed on the side of the lower template 3. Roller pressing mechanism 17 is installed on Accessory 4 18. Core insert 9 33 is installed on the top of the lower blanking plate 5. The top of core insert 9 33 extends through the lower mold pad 4 and the lower template 3 to the top of accessory 12 31.
[0024] For details, please refer to Figure 2 A positioning ring 6 is provided on the top of the upper sealing plate 1, and a gate sleeve 7 is provided on the inner side of the positioning ring 6.
[0025] In this embodiment, the bottom end of the sprue sleeve 7 is aligned with the gating groove on the upper template 2, and the hot runner on the upper template 2 is connected to the injection cavity.
[0026] For details, please refer to Figure 2 Multiple tie rods 8 are fixedly installed at the bottom of the upper plate 1, and the multiple tie rods 8 are respectively movably connected to the upper template 2.
[0027] In this embodiment, the upper blocking plate 1 and the upper template 2 are limited by the movable cooperation between the tie rod 8 and the upper template 2.
[0028] For details, please refer to Figure 2 Positioning posts 9 are fitted onto the upper template 2.
[0029] For details, please refer to Figure 2 Multiple coiled blue springs 23 are fitted between the lower sealing plate 5 and the lower template 3.
[0030] For details, please refer to Figure 1 and Figure 2 The inner sides of inserts 10, 21, 31, 41, 51, 62, 72, 82, and 93 have cavities for placing glass trough corner injection molding.
[0031] In this embodiment, the cavity is used to place the mud tank material body, and multiple mud tank material bodies are connected by injection molding in the cavity. In addition, the mud tank material body is formed by composite extrusion of soft and hard dense EPDM with a metal skeleton.
[0032] Working principle: In use, firstly, cylinder 35 drives the insert sheet metal 37 to retract, manually inserting the top strip material into the sheet metal. Cylinder 35 drives the mechanism to guide the top strip material into place. With the help of the rollers on the roller pressing mechanism 17, the top strip material is made to fit snugly against the sheet metal. Then, the vertical strip material is manually inserted. The top strip material and the vertical strip material are placed in the cavity composed of insert 10, insert 21, insert 313, insert 414, insert 515, insert 627, insert 728, insert 829, and insert 933. The connection between the top strip material and the vertical strip material is made from the sprue sleeve 7 and the upper template 2. Injection molding is performed at the injection point to connect the top strip and vertical strip materials. Then, the upper mold, composed of the upper blanking plate 1, upper template 2, and other structures, is raised, the mold is opened, and cylinder 1 34 is activated and retracted. Through the mechanical structure, insert 7 28 and insert 8 29 are moved outward. Cylinder 2 36 is activated and retracted. Through the mechanical structure, insert 6 27 is moved outward. Then, under the forward pushing action of cylinder 3 26, insert 1 10, insert 2 11, accessory 1 12, and insert 3 13 are pushed outward through the mechanical structure. Finally, the molded and connected top strip and vertical strip materials are taken out upward.
[0033] 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 door glass groove corner injection mold, characterized in that: The assembly includes an upper die plate (1) and a lower die plate (5). The bottom of the upper die plate (1) is provided with an upper template (2). The top of the lower die plate (5) is provided with a lower mold pad (4). The top of the lower mold pad (4) is provided with a lower template (3). Two accessories nine (24) are fixedly installed on the lower die plate (5). Accessories ten (25) are fixedly connected to the ends of the two accessories nine (24). A cylinder number three (26) is fixedly installed on the accessories ten (25). Accessories eight (22) are fixedly connected to the output end of the cylinder number three (26). Accessories eight (22) are movably sleeved at the end. Accessory 2 (16) is fixedly connected to the top of the lower mold plate (4). Accessory 2 (16) is provided with insert 3 (13). Insert 3 (11) is provided with insert 2 (13). Accessory 1 (12) is provided with insert 2 (11). Insert 1 (10) is provided with insert 2 (11). Accessory 12 (31) is provided on the top of the lower mold plate (3). A cylinder 1 (34) is provided on the side of accessory 12 (31). Accessory 3 (32) is fixedly connected to the output end of cylinder 3 (34). The end of accessory 3 (32) is movable. A core eight (29) is fixedly connected to the top of accessory twelve (31), and a core seven (28) is provided on the top of the core eight (29). A second cylinder (36) is provided on the side of the lower template (3), and accessory eleven (30) is fixedly connected to the output end of the second cylinder (36). A core six (27) is provided on accessory eleven (30). A core five (15) is provided at the end of the core eight (29), and a core four (14) is provided at the end of the core seven (28). Accessory seven (21) is provided on the side of the lower mold pad (4). 21) is provided with a No. 4 cylinder (35) on its side. The No. 4 cylinder (35) is fixedly connected to accessory five (19) at its output end. Accessory five (19) is provided with a strip sheet metal (37). Accessory six (20) is provided on the strip sheet metal (37). Accessory four (18) is provided on the side of the lower template (3). Accessory four (18) is provided with a roller pressing mechanism (17). Accessory nine (33) is provided on the top of the lower blanking plate (5). The top of accessory nine (33) extends through the lower mold pad (4) and the lower template (3) to the top of accessory twelve (31).
2. The door glass run channel corner injection mold of claim 1, wherein: The top of the upper sealing plate (1) is provided with a positioning ring (6), and the inner side of the positioning ring (6) is provided with a sprue sleeve (7).
3. The door glass run channel corner injection mold of claim 1, wherein: Multiple tie rods (8) are fixedly installed at the bottom of the upper plate (1), and the multiple tie rods (8) are respectively movably connected to the upper template (2).
4. The door glass run channel corner injection mold of claim 1, wherein: The upper template (2) is fitted with positioning posts (9).
5. The door glass run channel corner injection mold of claim 1, wherein: Multiple coiled blue springs (23) are sleeved between the lower sealing plate (5) and the lower template (3).
6. The door glass run channel corner injection mold of claim 1, wherein: The inner side of the core one (10), the core two (11), the core three (13), the core four (14), the core five (15), the core six (27), the core seven (28), the core eight (29) and the core nine (33) is combined with the cavity for placing glass mud groove corner injection molding.