Building block toy injection molding device

Abstract

The utility model discloses a building block toy injection molding device, which relates to the technical field of injection molding, and comprises a lower die holder, an inner groove is arranged at the center of the upper surface of the lower die holder, a molding seat is arranged at the center of the inner part of the inner groove, and a drainage cavity is formed between the outer part of the molding seat and the inner wall of the inner groove. An inner groove is formed in the lower surface of the upper die base, an upper die base is arranged above the inner groove, an upper die base is arranged at the center of the lower surface of the upper die base, a forming extrusion base is arranged on the lower surface of the upper die base, the forming extrusion base and the upper die base are of an integrated structure, and overflow holes are formed in the upper surfaces of the periphery of the forming base and are semicircular. According to the scheme, the problems that during injection molding of an existing building block toy injection molding device, overflowing is prone to occurring, overflowing materials can be attached to the upper surface of the lower mold base, during subsequent injection molding, a gap is formed between the upper mold base and the lower mold base due to the overflowing materials, the sealing performance is poor, and the injection molding effect is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to an injection molding device for building block toys. Background Technology

[0002] Injection molding of building block toys mainly involves injecting molten plastic into a mold cavity through an injection mold, and after cooling, a building block toy with a specific shape and size is obtained;

[0003] For example, the Chinese authorized patent CN219114657U (An Injection Mold for Convenient Demolding of Building Block Toys) includes a base plate, a movable plate, and a vertical plate. A guide push block is fixedly connected to the right side of the movable plate. A control box is fixedly installed on one side of the vertical plate. A push switch is fixedly installed on the upper end of the other side of the vertical plate. A lower mold is fixedly installed at the middle of the top of the base plate. An inner groove is opened at the lower end of the inner cavity of the lower mold. This utility model solves the problem that in the actual injection process of existing building block toy injection molds, the liquid solidifies in the injection cavity, causing the liquid to be in close contact with the inner wall of the injection cavity, resulting in difficulty in demolding the subsequent products and easy breakage, which is not conducive to people's use.

[0004] However, existing injection molding devices for building block toys are prone to overflow during injection. After overflow, the material adheres to the upper surface of the lower mold base. During subsequent injection, gaps are created between the upper and lower mold bases due to the overflow material, resulting in poor sealing and affecting the injection molding effect. Therefore, it does not meet the existing requirements. To address this, we have proposed an injection molding device for building block toys. Utility Model Content

[0005] The purpose of this utility model is to provide a building block toy injection molding device to solve the problem mentioned in the background art that the existing building block toy injection molding device is prone to overflow during injection molding. After overflow, the material will adhere to the upper surface of the lower mold base. During subsequent injection molding, gaps will be created between the upper mold base and the lower mold base due to the overflow material, resulting in poor sealing and affecting the injection molding effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a building block toy injection molding device, comprising: a lower mold base, an inner groove provided at the center of the upper surface of the lower mold base, a molding seat provided at the center of the inner groove, a drainage cavity formed between the outer side of the molding seat and the inner wall of the inner groove, an upper mold base provided above the inner groove, a protruding seat provided at the center of the lower surface of the upper mold base, a molding extrusion seat provided on the lower surface of the protruding seat, and the molding extrusion seat and the protruding seat are integral structures.

[0007] Preferably, the upper surface of the molding base is provided with overflow holes on all four sides, and the overflow holes are semi-circular, and the top opening of the inner groove is provided with a stepped groove.

[0008] Preferably, the lower surface of the four edges of the protrusion is provided with a pressing seat, and the pressing seat and the protrusion are integrally formed. The pressing seat is inserted into the overflow hole and is semi-circular.

[0009] Preferably, guide posts are welded to the four corners of the top surface of the lower mold base, and through guide grooves are opened at the four corners of the top surface of the upper mold base. The upper mold base moves up and down along the guide posts through the guide grooves, and a connecting seat is provided at the center of the upper surface of the upper mold base.

[0010] Preferably, the rear surface of the lower mold base is provided with an outflow opening, and the outflow opening communicates with the drainage cavity, and a sealing plug is inserted into the outer end of the outflow opening.

[0011] Preferably, a flow guide seat is provided at the lower end of the outflow opening, and the flow guide seat is welded and fixed to the lower mold base, and a flow guide slope is provided on the upper surface of the lower mold base.

[0012] Preferably, a control panel is provided at the front end of the lower mold base, and lifting handles are provided on both sides of the lower mold base, with both ends of the lifting handles welded and fixed to the lower mold base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model provides an inner groove at the center of the upper surface of the lower mold base, and a molding seat is set inside the inner groove. A drainage cavity is formed between the outer side of the molding seat and the inner wall of the inner groove. When building block toy material is added into the molding seat, since the overflow hole is semi-circular and the bottom of the overflow hole is lower than the top opening of the molding seat, the overflow hole can guide the overflowing building block toy material from all sides into the drainage cavity, preventing it from overflowing from the top opening of the molding seat. Even if the feeding speed is fast and the amount is large, exceeding the top opening of the molding seat, this invention can still prevent overflow. Because of the presence of the drainage cavity between the molding seat 9 and the inner groove 8, a certain distance is formed between the molding seat 9 and the inner groove 8, thus preventing the building block toy material from overflowing onto the upper surface of the lower mold seat and avoiding the impact of squeezing between the lower mold seat and the upper mold seat. The overflowed building block toy material flows out from the outflow opening, solving the problem that existing building block toy injection molding devices are prone to overflow during injection molding. After overflow, the material will adhere to the surface of the lower mold seat, and during subsequent injection molding, gaps will be created between the upper mold seat and the lower mold seat due to the overflow material, resulting in poor sealing and affecting the injection molding effect.

[0015] (2) By setting a guide seat at the lower end of the outflow opening, the upper surface of the guide seat is a guide slope. The overflowing building block toy material flows out from the outflow opening and slides down the guide slope of the guide seat into the receiving container for storage, which is convenient for collection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0018] Figure 3 This is a top view of the lower mold base structure of this utility model;

[0019] Figure 4 This is a bottom view of the upper mold base structure of this utility model;

[0020] In the diagram: 1. Lower mold base; 2. Upper mold base; 3. Connecting seat; 4. Guide post; 5. Guide groove; 6. Control panel; 7. Lifting handle; 8. Inner groove; 9. Forming seat; 10. Drainage cavity; 11. Stepped groove; 12. Outlet opening; 13. Sealing plug; 14. Flow guide seat; 15. Overflow hole; 16. Protrusion seat; 17. Forming extrusion seat; 18. Extrusion seat; 19. Flow guide slope. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 4This utility model provides an embodiment of a building block toy injection molding device, comprising: a lower mold base 1, an inner groove 8 at the center of the upper surface of the lower mold base 1, a molding seat 9 at the center of the inner groove 8, a drainage cavity 10 formed between the outer side of the molding seat 9 and the inner wall of the inner groove 8, an upper mold base 2 above the inner groove 8, a protrusion seat 16 at the center of the lower surface of the upper mold base 2, a molding extrusion seat 17 on the lower surface of the protrusion seat 16, and the molding extrusion seat 17 and the protrusion seat 16 being an integral structure; overflow holes 15 are provided on the upper surface of the four sides of the molding seat 9, and the overflow holes 15 are... The semi-circular inner groove 8 has a stepped groove 11 at its top opening. During injection molding, the forming extrusion seat 17 is embedded into the forming seat 9, and the protrusion seat 16 is inserted into the stepped groove 11. Extrusion seats 18 are provided on the lower surface of the four edges of the protrusion seat 16, and the extrusion seats 18 and the protrusion seat 16 are integral structures. The extrusion seats 18 are semi-circular and can be inserted into the overflow hole 15 during injection molding. Guide pillars 4 are welded to the four corners of the top surface of the lower mold base 1, and through guide grooves 5 are opened at the four corners of the top surface of the upper mold base 2. The guide grooves 5 are slidably connected to the guide pillars 4, and the upper mold base 2 is guided along the guide grooves 5. The guide column 4 moves up and down. A connecting seat 3 is provided at the center of the upper surface of the upper mold base 2. An outflow opening 12 is provided on the rear surface of the lower mold base 1, and the outflow opening 12 communicates with the drainage cavity 10. A guide seat 14 is provided at the lower end of the outflow opening 12, and the guide seat 14 is welded and fixed to the lower mold base 1. A guide slope 19 is provided on the upper surface of the lower mold base 1. A receiving container is placed at the lowest end of the guide seat 14. When adding building block toy material into the molding base 9, since the overflow hole 15 is semi-circular, the bottom end of the overflow hole 15 is lower than the top opening of the molding base 9, so the material can pass through the overflow hole 15. The flow channel 10 effectively guides the overflowing building block toy material, directing it from all sides into the flow cavity 10. This prevents overflow from the top opening of the molding seat 9. Even if the material flow is fast and plentiful, exceeding the top opening of the molding seat 9, the flow cavity 10 creates a distance between the molding seat 9 and the inner groove 8, preventing overflow onto the upper surface of the lower mold base 1. This avoids pressure between the lower mold base 1 and the upper mold base 2. Overflowing building block toy material flows out through the outlet opening 12, facilitating quick removal of excess material, preventing blockages, and improving work efficiency. Overflowing building block toy material slides down the guide slope 19 of the flow channel 14 into the receiving container for easy collection.

[0023] Then the upper mold base 2 moves downward along the guide post 4 through the guide groove 5 and contacts the upper surface of the lower mold base 1. At this time, the extrusion seat 18 is inserted into the overflow hole 15 to seal the connection between the forming seat 9 and the protrusion seat 16, so as to avoid continuous overflow and air leakage.

[0024] Please see Figure 2A sealing plug 13 is inserted into the outer end of the outlet 12. The outlet 12 is sealed by the sealing plug 13, which provides protection when not in use and maintains the cleanliness and safety of the equipment.

[0025] Please see Figure 1 A control panel 6 is provided at the front end of the lower mold base 1, and lifting handles 7 are provided on both sides of the lower mold base 1. Both ends of the lifting handles 7 are welded and fixed to the lower mold base 1. Operation is controlled through the control panel 6. This is existing technology. The lifting handles 7 facilitate personnel to lift the entire assembly for position adjustment. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A building block injection molding apparatus comprising a lower mold base (1), characterized in that: The upper surface center of the lower mold base (1) is provided with an inner groove (8), the inner center of the inner groove (8) is provided with a forming seat (9), the outer part of the forming seat (9) and the inner wall of the inner groove (8) form a drainage cavity (10), the upper part of the inner groove (8) is provided with an upper mold base (2), the lower surface center of the upper mold base (2) is provided with a convex seat (16), the lower surface of the convex seat (16) is provided with a forming extrusion seat (17), and the forming extrusion seat (17) and the convex seat (16) are an integral structure.

2. The building block injection molding apparatus according to claim 1, wherein: The upper surface of the four around of the forming seat (9) is provided with an overflow hole (15), and the overflow hole (15) is semicircular, and the top opening of the inner groove (8) is provided with a stepped groove (11).

3. The building block injection molding apparatus of claim 2, wherein: The lower surface of the four around edges of the convex seat (16) is provided with an extrusion seat (18), and the extrusion seat (18) and the convex seat (16) are an integral structure, and the extrusion seat (18) is inserted into the overflow hole (15), and the extrusion seat (18) is semicircular.

4. The building block injection molding apparatus of claim 1, wherein: The top surface of the lower mold base (1) is welded with a guide column (4) at four corners, the top surface of the upper mold base (2) is provided with a through guide groove (5) at four corners, and the upper mold base (2) moves up and down along the guide column (4) through the guide groove (5), and the center of the upper surface of the upper mold base (2) is provided with a connecting seat (3).

5. The building block injection molding apparatus of claim 1, wherein: The rear surface of the lower mold base (1) is provided with an outflow opening (12), and the outflow opening (12) communicates with the drainage cavity (10), and the outer end outlet of the outflow opening (12) is inserted with a sealing plug (13).

6. The building block injection molding apparatus of claim 5, wherein: The lower end of the outflow opening (12) is provided with a flow guide seat (14), and the flow guide seat (14) is welded and fixed with the lower mold base (1), and the upper surface of the lower mold base (1) is provided with a flow guide slope (19).

7. The building block injection molding apparatus of claim 1, wherein: The front end of the lower mold base (1) is provided with a control panel (6), and the two sides of the lower mold base (1) are provided with a lifting handle (7), and the two ends of the lifting handle (7) are welded and fixed with the lower mold base (1).

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