Synchronous core-pulling injection mold for toilet seat

Abstract

The utility model provides a toilet backrest synchronous core-pulling ejection injection mold, including lower mould base, the top middle part position of lower mould base is provided with the forming module, the inside installation of installation slot has middle support base and side support base, and the front end of middle support base and side support base is provided with the forming bottom edge, and the front end position of forming bottom edge is provided with buckle groove, the utility model middle support base and the front end of side support base form bottom edge and are pressed in the bottom position of forming module, and the front end of forming bottom edge is provided with buckle groove, and buckle groove can be in the inside of mould cavity and is in the inside position injection moulding multiple buckles of injection moulding piece, can be through its inside multiple buckles and toilet and install after backrest injection moulding piece forms, and the middle support base and side support base of the application are detachable and set up in the inside of installation slot, therefore, when needing injection moulding different structure's buckle on backrest injection moulding piece, can directly replace corresponding position's middle support base and side support base.

Description

Technical Field

[0001] This utility model belongs to the field of toilet injection mold technology, and relates to a toilet backrest synchronous core pulling and ejection injection mold. Background Technology

[0002] A toilet is a type of toilet designed for use by sitting on it. Based on flushing methods, it can be categorized into washdown, siphon, jet siphon, vortex siphon, and direct-discharge types. Based on its low-tank structure, it can be divided into wall-mounted, seated, and one-piece types. The key technical feature of a toilet is the opening at the top of the "S"-shaped water trap, where a clean plug is installed. This clean plug mainly consists of an inspection port and a clean plug nozzle. The inspection port is embedded in the pre-drilled opening at the top of the "S"-shaped water trap, and the clean plug nozzle is used to remove blockages. The toilet, along with a low-tank, toilet seat, and backrest, is installed in the bathroom for urination and defecation. After use, the drain valve in the low-tank can be opened to flush out wastewater and debris, keeping the toilet clean and hygienic.

[0003] Traditional toilet backrest structures are injection molded directly using molds. During injection molding, to facilitate the installation of the backrest, a snap-fit ​​structure needs to be injection molded on the inside of the backrest. However, existing molding modules are all integrally set, resulting in fixed snap-fit ​​structures and sizes. But the snap-fit ​​inside the backrest is different when installed at different installation points, so the existing injection mold parts need to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a synchronous core-pulling and ejection injection mold for toilet backrests, so as to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solution: a toilet backrest synchronous core-pulling ejection injection mold, including a lower mold base, an upper mold base, and a top plate. The upper mold base is provided at the top of the lower mold base, and the top plate is provided at the top of the upper mold base. A molding module is provided at the top center of the lower mold base, and an injection molded part is provided on the outside of the molding module. An installation groove is provided at the top side of the lower mold base, and a central support seat and a side support seat are installed inside the installation groove. A molding bottom edge is provided at the front end of the central support seat and the side support seat, and the molding bottom edge is located at the bottom side of the molding module. A snap-fit ​​groove is provided at the front end of the molding bottom edge.

[0006] In the aforementioned toilet backrest synchronous core-pulling ejection injection mold, a support block is provided at the top of the central support seat and the side support seat, and multiple support grooves are provided at the bottom of the upper mold seat, with the support block located inside the support groove.

[0007] In the aforementioned toilet backrest synchronous core-pulling ejection injection mold, a limiting groove is provided at the bottom side of the mounting groove, and limiting strips are provided at the bottom of the central support and the side support, with the limiting strips being locked inside the limiting groove.

[0008] In the aforementioned toilet backrest synchronous core-pulling ejection injection mold, the upper mold base has a molding cavity inside, and the molding module is located inside the molding cavity, with the injection molded part disposed between the molding cavity and the molding module.

[0009] In the aforementioned toilet backrest synchronous core-pulling ejection injection mold, a guide groove is provided on the top side of the lower mold base, and a guide block is provided on the bottom side of the upper mold base, with the guide block located inside the guide groove.

[0010] In the aforementioned toilet backrest synchronous core-pulling ejection injection mold, a feed hole is provided at the top center of the top plate, and four ejector pins are provided at the top of the molding module.

[0011] Compared with the existing technology, the advantages of this utility model of synchronous core-pulling ejection injection mold for toilet backrest are: This application features a molding module inside the lower mold base and a molding cavity inside the upper mold base that mates with the molding module. This allows for injection molding of an injection molded part within the mold cavity. Furthermore, this application includes multiple central support seats and side support seats at the bottom edge of the molding module. The molding bottom edges of the central and side support seats press against the bottom of the molding module, thus participating in the molding of the injection molded part together with the molding module. A snap-fit ​​groove is provided at the front end of the molding bottom edge. This snap-fit ​​groove allows for the injection molding of multiple snaps inside the mold cavity on the inner side of the injection molded part. After the backrest injection molded part is formed, it can be engaged with a toilet seat using these internal snaps. Since the central and side support seats are detachably mounted inside the mounting groove, when different structures of snaps need to be injection molded onto the backrest injection molded part, the corresponding central and side support seats can be directly replaced, thereby reducing mold usage costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the injection mold for the synchronous core-pulling and ejection of the toilet backrest of this utility model.

[0013] Figure 2 This is a schematic diagram of the top structure of the lower mold base of the injection mold for the synchronous core-pulling and ejection of the toilet backrest of this utility model.

[0014] Figure 3 This is a schematic diagram of the molding module structure of the injection mold for synchronous core pulling and ejection of the toilet backrest of this utility model.

[0015] Figure 4This is a schematic diagram of the upper mold base structure of the injection mold for synchronous core pulling and ejection of the toilet backrest of this utility model.

[0016] Figure 5 This is a schematic diagram of the central support structure of the injection mold for the synchronous core-pulling and ejection of the toilet backrest of this utility model.

[0017] Figure 6 This is a schematic diagram of the side support structure of the injection mold for synchronous core pulling and ejection of the toilet backrest of this utility model.

[0018] In the diagram, 1. Lower mold base; 2. Upper mold base; 3. Top plate; 4. Feed hole; 5. Central support base; 6. Side support base; 7. Guide groove; 8. Injection part; 9. Molding module; 10. Ejector pin; 11. Molding cavity; 12. Guide block; 13. Support groove; 14. Limiting groove; 15. Mounting groove; 16. Limiting strip; 17. Support block; 18. Molding bottom edge; 19. Snap-on groove. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] The toilet backrest synchronous core-pulling ejection injection mold includes a lower mold base 1, an upper mold base 2, and a top plate 3. The upper mold base 2 is located at the top of the lower mold base 1, and the top plate 3 is located at the top of the upper mold base 2. A molding module 9 is located at the top center of the lower mold base 1, and an injection molded part 8 is located on the outside of the molding module 9. An installation groove 15 is located at the top side of the lower mold base 1. A central support 5 and a side support 6 are installed inside the installation groove 15. A molding bottom edge 18 is located at the front end of the central support 5 and the side support 6, and the molding bottom edge 18 is located at the bottom side of the molding module 9. A snap-fit ​​groove 19 is located at the front end of the molding bottom edge 18.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention relates to a toilet seat backrest synchronous core-pulling ejection injection mold. Specifically, a support block 17 is provided at the top of the middle support seat 5 and the side support seat 6, and multiple support grooves 13 are provided at the bottom of the upper mold seat 2, with the support block 17 located inside the support groove 13.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the present invention relates to a toilet seat backrest synchronous core-pulling ejection injection mold. Specifically, a limiting groove 14 is provided at the bottom side of the mounting groove 15, and a limiting strip 16 is provided at the bottom of the middle support seat 5 and the side support seat 6, and the limiting strip 16 is stuck inside the limiting groove 14.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention relates to a toilet seat backrest synchronous core-pulling ejection injection mold. Specifically, the upper mold base 2 has a molding cavity 11 inside, and the molding module 9 is located inside the molding cavity 11. The injection molded part 8 is disposed between the molding cavity 11 and the molding module 9.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention relates to a toilet seat backrest synchronous core-pulling ejection injection mold. Specifically, a guide groove 7 is provided on the top side of the lower mold base 1, and a guide block 12 is provided on the bottom side of the upper mold base 2. The guide block 12 is located inside the guide groove 7. When the upper mold base 2 moves, it is supported by the guide block 12 and the guide column installed at the guide block 12.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention relates to a toilet seat backrest synchronous core-pulling ejection injection mold. Specifically, a feed hole 4 is provided at the top center of the top plate 3, and four ejector pins 10 are provided at the top of the molding module 9. The material is fed through the feed hole 4, so that the injection liquid enters the mold cavity formed between the molding module 9 and the molding cavity 11, and the injection molded part 8 is formed.

[0026] This utility model relates to a toilet seat backrest synchronous core-pulling ejection injection mold. A molding module 9 is provided inside the lower mold base 1, and a molding cavity 11 that mates with the molding module 9 is provided inside the upper mold base 2. An injection molded part 8 is formed within the mold cavity formed between the molding module 9 and the molding cavity 11. Furthermore, this application provides multiple central support seats 5 and side support seats 6 at the bottom edge of the molding module 9. The molding bottom edges 18 at the front ends of the central support seats 5 and side support seats 6 are pressed against the bottom of the molding module 9, thus participating in the molding of the injection molded part 8 together with the molding module 9. A buckle is provided at the front end of the molding bottom edge 18. The groove 19 and the snap-fit ​​groove 19 can be used to injection mold multiple snaps inside the mold cavity on the inner side of the injection molded part 8. After the backrest injection molded part 8 is formed, it can be engaged with the toilet through the multiple snaps inside. Since the central support seat 5 and the side support seat 6 of this application are detachably set inside the mounting groove 15, when it is necessary to injection mold snaps of different structures on the backrest injection molded part 8, the central support seat 5 and the side support seat 6 at the corresponding positions can be directly replaced without replacing the entire mold base, thereby reducing the use cost of the mold.

[0027] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A toilet seat backrest synchronous core-pulling ejection injection mold, comprising a lower mold base (1), an upper mold base (2), and a top plate (3), characterized in that, The lower mold base (1) is provided with an upper mold base (2) at the top position, and the upper mold base (2) is provided with a top plate (3) at the top position. The lower mold base (1) is provided with a molding module (9) at the top center position. The molding module (9) is provided with an injection molded part (8) on its outside. The lower mold base (1) is provided with a mounting groove (15) at the top side position. The mounting groove (15) is provided with a central support base (5) and a side support base (6) inside. The central support base (5) and the side support base (6) are provided with a molding bottom edge (18) at the front end. The molding bottom edge (18) is located at the bottom side position of the molding module (9). The molding bottom edge (18) is provided with a snap-fit ​​groove (19) at the front end position.

2. The toilet backrest synchronous core-pulling ejection injection mold according to claim 1, characterized in that, The top of the central support base (5) and the side support base (6) are provided with support blocks (17), and the bottom of the upper mold base (2) is provided with multiple support grooves (13), and the support blocks (17) are located inside the support grooves (13).

3. The toilet backrest synchronous core-pulling ejection injection mold according to claim 1, characterized in that, A limiting groove (14) is provided at the bottom side of the mounting groove (15), and a limiting strip (16) is provided at the bottom of the middle support (5) and the side support (6), and the limiting strip (16) is stuck inside the limiting groove (14).

4. The toilet backrest synchronous core-pulling ejection injection mold according to claim 1, characterized in that, The upper mold base (2) has a molding cavity (11) inside, and the molding module (9) is located inside the molding cavity (11). The injection molded part (8) is located between the molding cavity (11) and the molding module (9).

5. The toilet backrest synchronous core-pulling ejection injection mold according to claim 1, characterized in that, The lower mold base (1) has a guide groove (7) on its top side, and the upper mold base (2) has a guide block (12) on its bottom side, with the guide block (12) inside the guide groove (7).

6. The toilet backrest synchronous core-pulling ejection injection mold according to claim 1, characterized in that, The top plate (3) has a feeding hole (4) at the middle of its top end, and the molding module (9) has four ejector pins (10) at its top.

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