A forming die for a thin-walled large flat plate
By designing a thin-walled, large flat panel forming mold, the problem of the lack of bathtub door forming molds was solved, realizing the rapid forming and sealing requirements of bathtub doors, and enabling efficient forming of outer frame, annular groove and sealing strip installation groove.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGNAN ALUMINUM WHEEL MFG (GUANGDONG) CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-14
AI Technical Summary
There is a lack of molds for molding bathtub doors in the existing technology, especially considering the molding requirements of the hollow structure of bathtub doors and the sealing strip mounting groove.
A molding die for thin-walled large flat parts was designed, including a fixed die and a moving die. The fixed die core assembly and the moving die core assembly are used to form the outer frame, the annular groove and the sealing strip mounting groove, respectively. Rapid molding is achieved through a dual-outlet injection assembly.
It enables rapid prototyping of bathtub doors, featuring efficient molding of inner panels, outer frames, middle frames, annular grooves, and sealing strip mounting grooves. Material filling is fast, meeting the sealing and installation requirements of bathtub doors.
Smart Images

Figure CN224489847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathtub technology, specifically to a molding die for a thin-walled large flat panel. Background Technology
[0002] To enhance the flexibility of bathtubs, they are now equipped with operable doors that can be opened, such as the bathtub door disclosed in Chinese patent CN219353738U.
[0003] To ensure a tight seal between the bathtub door and the bathtub, the inside of the bathtub door needs to be grooved for installing a sealing strip. Additionally, to accommodate a lock, the bathtub door needs to be hollow (e.g.,...). Figure 1 and 2 As shown in the image, there are currently no molds for molding bathtub doors.
[0004] Based on this, this utility model designs a thin-walled large flat plate forming mold to solve the above problems. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a molding die for forming thin-walled large flat parts.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A molding die for forming a thin-walled large flat part includes a fixed die and a moving die;
[0008] The fixed mold includes a dual ejection injection assembly, a fixed mold core assembly, and a first auxiliary molding assembly. The fixed mold core assembly, which is used for molding the outer frame and the annular groove, is connected to the dual ejection injection assembly, and the fixed mold core assembly is equipped with a second auxiliary molding assembly.
[0009] The moving mold includes a moving mold core assembly and a support assembly. The moving mold assembly used for forming the sealing strip mounting groove is fixedly connected to the support assembly. The fixed mold core assembly and the fixed mold core assembly cooperate to form the inner plate and the middle frame.
[0010] Furthermore, the fixed mold core assembly includes a fixed mold base, an annular groove forming groove, a fixed mold core, and a shell forming groove. The fixed mold base has a shell forming groove for forming the outer frame on its end face near the moving mold. The fixed mold core is fixedly connected to the side wall of the shell forming groove. The fixed mold core has an annular groove forming groove for forming the annular groove on its end near the shell forming groove. Both the fixed mold base and the fixed mold core are connected to the dual-outlet injection assembly.
[0011] Furthermore, the distance between the end of the outer shell forming groove near the fixed mold base and the end of the annular groove forming groove near the fixed mold base is equal to the outer frame wall thickness.
[0012] Furthermore, the dual-outlet injection assembly includes an injection port and a material channel. The injection port is located inside the fixed mold base and the fixed mold core. The side wall of the fixed mold core near the moving mold has a material channel that communicates with the injection port, and the end of the material channel away from the injection port passes through the fixed mold core.
[0013] Furthermore, the first auxiliary molding component includes a support plate mounting groove, a first connecting plate mounting groove, a top plate, a first connecting plate, a middle frame forming mold frame, and a side connecting plate. The bottom of the top plate is fixedly connected to the first connecting plate, the bottom of the first connecting plate is fixedly connected to the middle frame forming mold frame, the outer wall of the middle frame forming mold frame is fixedly connected to the side connecting plate, the top of the side connecting plate is fixedly connected to the bottom of the top plate, and the upper end of the fixed mold base near the moving mold has a first connecting plate mounting groove that inserts into the first connecting plate and a support plate mounting groove that inserts into the side connecting plate.
[0014] Furthermore, the end of the middle frame forming mold near the outer shell forming groove is in contact with the side wall of the outer shell forming groove.
[0015] Furthermore, the distance between the inner wall of the intermediate frame forming mold and the outer wall of the fixed mold core is the wall thickness of the intermediate frame.
[0016] Furthermore, the moving mold core assembly includes a second top plate, a second connecting plate, an inner plate forming mold frame, and a sealing strip mounting groove forming groove. The second connecting plate is fixedly connected to the bottom of the second top plate, and the inner plate forming mold frame is connected to the bottom of the second connecting plate. The end of the inner plate forming mold frame near the moving mold base is provided with a sealing strip mounting groove forming groove for forming the sealing strip mounting groove. Both the second connecting plate and the inner plate forming mold frame support the assembly connection.
[0017] Furthermore, the support components include a moving mold base, a moving mold sleeve mounting groove, and a shell forming groove. The moving mold base has a moving mold sleeve mounting groove that is inserted into the inner plate forming mold frame and a second connecting plate that is inserted into the second connecting plate at its end near the fixed mold base. Beneficial effects
[0018] This invention installs the first auxiliary molding component of the fixed mold inside the fixed mold core component, and installs the moving mold core component of the moving mold inside the support component. The moving mold moves toward the fixed mold and closes with it. Molding material is injected into the fixed mold and the moving mold from the dual-outlet injection component. The fixed mold core component and the fixed mold core component cooperate to form the inner plate and the middle frame. The moving mold component forms the sealing strip mounting groove, and the fixed mold core component forms the outer frame and the annular groove. This enables the rapid molding of a thin-walled large flat part of a bathtub door with an inner plate, outer frame, middle frame, annular groove and sealing strip mounting groove. The dual-outlet injection component also helps to quickly fill the material. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This utility model provides a three-dimensional thin-walled large flat panel component. Figure 1 ;
[0021] Figure 2 This utility model provides a three-dimensional thin-walled large flat panel component. Figure 2 ;
[0022] Figure 3 This is a schematic diagram of a partial structure of the mold of this utility model. Figure 1 ;
[0023] Figure 4 This is a schematic diagram of a partial structure of the mold of this utility model. Figure 2 ;
[0024] Figure 5 This is a schematic diagram of the structure of the first auxiliary molding component of this utility model. Figure 1 ;
[0025] Figure 6 This is a schematic diagram of the structure of the first auxiliary molding component of this utility model. Figure 2 ;
[0026] Figure 7 This is a schematic diagram of the moving mold core assembly structure of this utility model. Figure 1 ;
[0027] Figure 8 This is a schematic diagram of the moving mold core assembly structure of this utility model. Figure 2 ;
[0028] Figure 9 This is a schematic diagram of the support component structure of this utility model. Figure 1 ;
[0029] Figure 10 This is a schematic diagram of the support component structure of this utility model. Figure 1 .
[0030] The labels in the diagram represent:
[0031] 1. Inner plate 2. Outer frame 3. Scrap material 4. Middle frame 5. Annular groove 6. Moving mold base 7. Sealing strip mounting groove 8. Fixed mold base 9. Injection port 10. Support plate mounting groove 11. First connecting plate mounting groove 12. Material channel 13. Annular groove forming groove 14. Moving mold sleeve mounting groove 15. Fixed mold core 16. Top plate 17. First connecting plate 18. Middle frame forming mold frame 19. Side connecting plate 20. Second top plate 21. Second connecting plate 22. Inner plate forming mold frame 23. Sealing strip mounting groove forming groove 24. Outer shell forming groove. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0033] The present invention will be further described below with reference to the embodiments.
[0034] Please refer to the instruction manual appendix. Figure 1-2 One end of the inner panel 1 is fixedly formed with a middle frame 4, the end of the middle frame 4 away from the inner panel 1 is formed with an outer frame 2, the outer frame 2 is formed with an annular groove 5, and the other end of the inner panel 1 is formed with a sealing strip mounting groove 7.
[0035] Waste material 3 is located at one end of inner plate 1; Example 1
[0036] Please refer to the instruction manual appendix. Figure 3-10 A mold for forming thin-walled large flat parts, comprising a fixed mold and a moving mold;
[0037] The fixed mold includes a dual ejection injection assembly, a fixed mold core assembly, and a first auxiliary molding assembly. The fixed mold core assembly, which is used for molding the outer frame 2 and the annular groove 5, is connected to the dual ejection injection assembly, and the fixed mold core assembly is equipped with a second auxiliary molding assembly.
[0038] The moving mold includes a moving mold core assembly and a support assembly. The moving mold assembly used for forming the sealing strip mounting groove 7 is fixedly connected to the support assembly. The fixed mold core assembly and the fixed mold core assembly cooperate to form the inner plate 1 and the intermediate frame 4.
[0039] The first auxiliary molding component of the fixed mold is installed inside the fixed mold core component, and the moving mold core component of the moving mold is installed inside the support component. The moving mold moves toward the fixed mold and closes with it. Molding material is injected into the fixed mold and the moving mold from the dual-outlet injection component. The fixed mold core component and the fixed mold core component cooperate to form the inner plate 1 and the middle frame 4. The moving mold component forms the sealing strip mounting groove 7, and the fixed mold core component forms the outer frame 2 and the annular groove 5. This enables the rapid molding of a thin-walled large flat part of a bathtub door with an inner plate 1, an outer frame 2, a middle frame 4, an annular groove 5 and a sealing strip mounting groove 7. The dual-outlet injection component also helps to fill the material quickly.
[0040] The fixed mold core assembly includes a fixed mold base 8, an annular groove forming groove 13, a fixed mold core 15, and a shell forming groove 24. The fixed mold base 8 has a shell forming groove 24 for forming the outer frame 2 on its end face near the moving mold. The fixed mold core 15 is fixedly connected to the side wall of the shell forming groove 24. The fixed mold core 15 has an annular groove forming groove 13 for forming the annular groove 5 on its end near the shell forming groove 24. Both the fixed mold base 8 and the fixed mold core 15 are connected to the dual-outlet injection assembly.
[0041] The distance between the end of the outer shell forming groove 24 near the fixed mold base 8 and the end of the annular groove forming groove 13 near the fixed mold base 8 is the wall thickness of the outer frame 2.
[0042] The dual-outlet injection assembly includes an injection port 9 and a material channel 12. The injection port 9 is opened in the fixed mold base 8 and the fixed mold core 15. The side wall of the fixed mold core 15 near the moving mold is provided with a material channel 12 that communicates with the injection port 9, and the end of the material channel 12 away from the injection port 9 passes through the fixed mold core 15.
[0043] The material channel 12 has its discharge port facing upwards;
[0044] The first auxiliary molding component includes a support plate mounting groove 10, a first connecting plate mounting groove 11, a top plate 16, a first connecting plate 17, a middle frame forming mold frame 18, and a side connecting plate 19. The bottom of the top plate 16 is fixedly connected to the first connecting plate 17, the bottom of the first connecting plate 17 is fixedly connected to the middle frame forming mold frame 18, the outer wall of the middle frame forming mold frame 18 is fixedly connected to the side connecting plate 19, and the top of the side connecting plate 19 is fixedly connected to the bottom of the top plate 16. The upper end of the fixed mold base 8 near the moving mold has a first connecting plate mounting groove 11 that is inserted into the first connecting plate 17 and a support plate mounting groove 10 that is inserted into the side connecting plate 19.
[0045] The end of the middle frame forming mold 18 near the outer shell forming groove 24 is in contact with the side wall of the outer shell forming groove 24;
[0046] The distance between the inner wall of the intermediate frame forming mold 18 and the outer wall of the fixed mold core 15 is the wall thickness of the intermediate frame 4;
[0047] The moving mold core assembly includes a second top plate 20, a second connecting plate 21, an inner plate forming mold frame 22, and a sealing strip mounting groove forming groove 23. The second top plate 20 is fixedly connected to the bottom of the second connecting plate 21, and the inner plate forming mold frame 22 is connected to the bottom of the second connecting plate 21. The end of the inner plate forming mold frame 22 near the moving mold base 6 is provided with a sealing strip mounting groove forming groove 23 for forming the sealing strip mounting groove 7. The second connecting plate 21 and the inner plate forming mold frame 22 are both support components connected.
[0048] The support assembly includes a moving mold base 6, a moving mold sleeve mounting groove 14, and a shell forming groove 24. The moving mold base 6 has a moving mold sleeve mounting groove 14 that is inserted into the inner plate forming mold frame 22 and a second connecting plate 21 that is inserted into the second connecting plate 21 at the end near the fixed mold base 8.
[0049] When the mold is closed, the distance between the end of the fixed mold core 15 near the moving mold base 6 and the inner wall of the inner plate forming mold frame 22 is the wall thickness of the inner plate 1.
[0050] The first connecting plate 17 of the first auxiliary molding assembly of the fixed mold is inserted into the first connecting plate mounting groove 11, the side connecting plate 19 is inserted into the support plate mounting groove 10, and the middle frame molding mold frame 18 is inserted into the outer shell molding groove 24. The inner plate molding mold frame 22 of the moving mold core assembly of the moving mold is inserted into the moving mold sleeve mounting groove 14, and the second connecting plate 21 is inserted into the outer shell molding groove 24. The moving mold base 6 of the moving mold moves toward and closes with the fixed mold base 8 of the fixed mold. The material is injected from the injection port 9 and the material channel 12 of the double discharge injection assembly into the fixed mold base 8 of the fixed mold and the moving mold base 6 of the moving mold. The fixed mold core assembly... The inner plate forming mold frame 22 of the mold core 15 and the fixed mold core assembly cooperate to form the inner plate 1 and the middle frame 4. The sealing strip mounting groove forming groove 23 of the moving mold assembly forms the sealing strip mounting groove 7. The outer frame 2 is formed between the end of the outer shell forming groove 24 of the fixed mold core assembly near the fixed mold base 8 and the end of the annular groove forming groove 13 near the fixed mold base 8. The annular groove forming groove 13 forms the annular groove 5. This enables the rapid forming of a thin-walled large flat part of a bathtub door with an inner plate 1, an outer frame 2, a middle frame 4, an annular groove 5 and a sealing strip mounting groove 7. The dual-outlet injection assembly helps to quickly fill the material.
[0051] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A molding die for forming a thin-walled large flat part, comprising a fixed die and a moving die, characterized in that: The fixed mold includes a dual ejector injection assembly, a fixed mold core assembly and a first auxiliary molding assembly. The fixed mold core assembly for molding the outer frame (2) and the annular groove (5) is connected to the dual ejector injection assembly, and the fixed mold core assembly is equipped with a second auxiliary molding assembly. The moving mold includes a moving mold core assembly and a support assembly. The moving mold assembly used for forming the sealing strip mounting groove (7) is fixedly connected to the support assembly. The fixed mold core assembly and the fixed mold core assembly cooperate to form the inner plate (1) and the intermediate frame (4).
2. The thin-walled large flat plate forming mold according to claim 1, characterized in that, The fixed mold core assembly includes a fixed mold base (8), an annular groove forming groove (13), a fixed mold core (15), and a shell forming groove (24). The fixed mold base (8) has a shell forming groove (24) for forming the outer frame (2) on its end face near the moving mold. The fixed mold core (15) is fixedly connected to the side wall of the shell forming groove (24). The fixed mold core (15) has an annular groove forming groove (13) for forming the annular groove (5) on its end near the shell forming groove (24). Both the fixed mold base (8) and the fixed mold core (15) are connected to the dual-outlet injection assembly.
3. The thin-walled large flat plate forming mold according to claim 2, characterized in that, The distance between the end of the outer shell forming groove (24) near the fixed mold base (8) and the end of the annular groove forming groove (13) near the fixed mold base (8) is the wall thickness of the outer frame (2).
4. The thin-walled large flat plate forming mold according to claim 2, characterized in that, The dual-outlet injection assembly includes an injection port (9) and a material channel (12). The injection port (9) is located inside the fixed mold base (8) and the fixed mold core (15). The fixed mold core (15) has a material channel (12) that communicates with the injection port (9) on its side wall near the moving mold. The end of the material channel (12) away from the injection port (9) passes through the fixed mold core (15).
5. The thin-walled large flat plate forming mold according to claim 4, characterized in that, The first auxiliary molding component includes a support plate mounting groove (10), a first connecting plate mounting groove (11), a top plate (16), a first connecting plate (17), a middle frame molding mold frame (18), and a side connecting plate (19). The bottom of the top plate (16) is fixedly connected to the first connecting plate (17), the bottom of the first connecting plate (17) is fixedly connected to the middle frame molding mold frame (18), the outer wall of the middle frame molding mold frame (18) is fixedly connected to the side connecting plate (19), the top of the side connecting plate (19) is fixedly connected to the bottom of the top plate (16), and the upper end of the fixed mold base (8) near the moving mold is provided with a first connecting plate mounting groove (11) that is inserted into the first connecting plate (17) and a support plate mounting groove (10) that is inserted into the side connecting plate (19).
6. The thin-walled large flat plate forming mold according to claim 5, characterized in that, The end of the middle frame forming mold (18) near the outer shell forming groove (24) is in contact with the side wall of the outer shell forming groove (24).
7. The thin-walled large flat plate forming mold according to claim 6, characterized in that, The distance between the inner wall of the intermediate frame forming mold (18) and the outer wall of the fixed mold core (15) is the wall thickness of the intermediate frame (4).
8. The thin-walled large flat plate forming mold according to any one of claims 5-7, characterized in that, The moving mold core assembly includes a second top plate (20), a second connecting plate (21), an inner plate forming mold frame (22), and a sealing strip mounting groove forming groove (23). The bottom of the second top plate (20) is fixedly connected to the second connecting plate (21), and the bottom of the second connecting plate (21) is connected to the inner plate forming mold frame (22). The end of the inner plate forming mold frame (22) near the moving mold base (6) is provided with a sealing strip mounting groove forming groove (23) for forming the sealing strip mounting groove (7). The second connecting plate (21) and the inner plate forming mold frame (22) are both connected to the supporting assembly.
9. The thin-walled large flat plate forming mold according to claim 8, characterized in that, The support assembly includes a moving mold base (6), a moving mold sleeve mounting groove (14), and a shell forming groove (24). The moving mold base (6) has a moving mold sleeve mounting groove (14) that is inserted into the inner plate forming mold frame (22) and a second connecting plate (21) that is inserted into the second connecting plate (21) at the end near the fixed mold base (8).