Plastic toy injection molding device

Abstract

The utility model provides a plastic toy injection molding device which comprises a lower mold base, a sliding block core-pulling assembly is installed in the lower mold base, and the sliding block core-pulling assembly comprises a driving disc, an arc-shaped groove, a driving rod, a guide base, a sliding block body, a core-pulling air cylinder, a guide groove and a connecting sleeve. And the arc-shaped groove is formed in the driving disc. The core pulling air cylinder drives the connecting sleeve, the connecting sleeve drives the driving rod, the driving rod drives the driving disc to rotate through the arc-shaped groove, the driving disc drives the driving rods at other positions to move through the arc-shaped groove, then the driving rods at different positions can move synchronously, and therefore synchronous core pulling of a plurality of sliding block bodies is achieved. Compared with the prior art, the synchronous core-pulling mechanism has the advantages that the driving disc, the driving rod, the guide seat, the core-pulling air cylinder and other structures are matched, so that synchronous core-pulling can be performed on a plurality of sliding block main bodies, the use quantity of the air cylinders is reduced, the size of a mold is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to an injection mold, specifically a plastic toy injection molding device, and belongs to the field of injection molding technology. Background Technology

[0002] Toys are items that people can play with. Their core function is not only entertainment, but they are also often used as a medium for "edutainment," and the target audience covers children, youth, and even the middle-aged and elderly. Among them, plastic toys are a type of toy made primarily of plastic. With the advantages of the material's high plasticity, controllable cost, and rich colors, they have become the mainstream category in the market.

[0003] Based on the characteristics of plastic processing technology, plastic toys are mainly divided into the following categories:

[0004] Injection-molded toys: Produced through injection molding process, suitable for toys with complex structures and high precision requirements (such as building blocks, dolls, etc.);

[0005] Blow-molded toys: These are formed using hollow blow molding technology and are commonly found in hollow products (such as balls and water bottle toys); Rotational molding toys: These are formed by melting plastic powder through a rotating mold and are suitable for producing large hollow products (such as parts for children's amusement facilities).

[0006] In toy injection molding, if cylinders are used to pull the core from multiple sliders, when there are many sliders, multiple cylinders need to be configured if a linkage mechanism is not designed, which may lead to a complicated core-pulling structure, increased mold volume and increased cost. Therefore, a plastic toy injection molding device is proposed. Utility Model Content

[0007] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and to provide a plastic toy injection molding device.

[0008] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0009] A plastic toy injection molding apparatus includes a lower mold base, and a slider core-pulling assembly is installed inside the lower mold base. The slider core-pulling assembly includes a drive plate, an arc groove, a drive rod, a guide seat, a slider body, a core-pulling cylinder, a guide groove, and a connecting sleeve.

[0010] The arc-shaped groove is formed inside the drive plate. The top end of the drive rod is fixedly connected to the lower surface of the slider body. The guide groove is formed inside the slider body. The outer side wall of the guide seat is slidably connected to the inner side wall of the guide groove. The connecting sleeve is rotatably connected to the bottom of the outer side wall of the drive rod. The cylinder shaft of the core-pulling cylinder is fixedly connected to the outer side wall of the connecting sleeve. The core-pulling cylinder is installed on one side of the lower mold base. The outer side wall of the drive rod is slidably connected to the inner side wall of the arc-shaped groove.

[0011] More preferably, the upper surface of the lower mold base is provided with a mold cavity, and the interior of the lower mold base is provided with an installation cavity, which communicates with the mold cavity.

[0012] More preferably, the drive disk is rotatably connected to the inner bottom wall of the mounting cavity, the slider body is slidably connected to the inside of the mounting cavity, and the side of the slider body away from the guide seat is located inside the mold cavity.

[0013] More preferably, the guide seat is fixedly connected to the inner wall of the mounting cavity.

[0014] More preferably, four guide sleeves are symmetrically installed on the upper surface of the lower mold base.

[0015] More preferably, the upper surface of the lower mold base is fitted with an upper mold base, and the lower surface of the upper mold base is symmetrically fixedly connected with four guide pillars, which are slidably connected to the inner sidewall of the guide sleeve.

[0016] More preferably, the upper mold base has an injection hole inside.

[0017] More preferably, a mold core is mounted on the lower surface of the upper mold base, and the shape of the mold core is adapted to the shape of the mold cavity.

[0018] The present invention has the following advantages due to the adoption of the above technical solution:

[0019] This invention utilizes a core-pulling cylinder to drive a connecting sleeve, which in turn drives a driving rod. This driving rod, through an arc-shaped groove, drives a driving disc to rotate. The driving disc, through the arc-shaped groove, moves driving rods in other positions, thus enabling synchronous movement of driving rods in different positions. This allows for the simultaneous core-pulling of multiple slider bodies. Compared to existing technologies, this invention, through the coordination of a driving disc, driving rod, guide seat, and core-pulling cylinder, can simultaneously pull the cores from multiple slider bodies, thereby reducing the number of cylinders used, decreasing the size of the mold, and lowering production costs.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0022] Figure 1 This is a structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the installation position of the core-pulling cylinder of this utility model;

[0024] Figure 3 This is a structural diagram of the slider core-pulling assembly of this utility model;

[0025] Figure 4 This is a schematic diagram showing the connection between the connecting sleeve and the drive rod of this utility model;

[0026] Figure 5 This is a structural diagram of the lower mold base of this utility model.

[0027] Reference numerals: 101, slider core-pulling assembly; 11, lower mold base; 12, mold cavity; 13, mounting cavity; 14, drive platen; 15, arc groove; 16, drive rod; 17, guide seat; 18, slider body; 19, core-pulling cylinder; 20, guide groove; 21, connecting sleeve; 31, upper mold base; 32, injection hole; 33, guide post; 34, mold core; 35, guide sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-5 As shown, this utility model embodiment provides a plastic toy injection molding device, including a lower mold base 11, and a slider core pulling assembly 101 is installed inside the lower mold base 11. The slider core pulling assembly 101 includes a drive disk 14, an arc groove 15, a drive rod 16, a guide seat 17, a slider body 18, a core pulling cylinder 19, a guide groove 20, and a connecting sleeve 21.

[0030] An arc-shaped groove 15 is formed inside the drive disk 14. The top end of the drive rod 16 is fixedly connected to the lower surface of the slider body 18. The outer side wall of the drive rod 16 is slidably connected to the inner side wall of the arc-shaped groove 15. A guide groove 20 is formed inside the slider body 18. The outer side wall of the guide seat 17 is slidably connected to the inner side wall of the guide groove 20. Through the cooperation of the guide groove 20 and the guide seat 17, the position of the slider body 18 can be limited so that the slider body 18 can move along the guide seat 17. Then, when the drive disk 14 rotates, the drive disk 14 drives the drive rod 16 through the arc-shaped groove 15. Under the action of the arc-shaped groove 15, the drive rod 16 moves away from the center of the drive disk 14, thereby realizing the core pulling of the slider body 18.

[0031] The connecting sleeve 21 is rotatably connected to the bottom of the outer wall of the drive rod 16. The cylinder shaft of the core-pulling cylinder 19 is fixedly connected to the outer wall of the connecting sleeve 21. The core-pulling cylinder 19 is installed on one side of the lower mold base 11. The connecting sleeve 21 is driven by the core-pulling cylinder 19, and the connecting sleeve 21 drives one drive rod 16. One drive rod 16 drives the drive disk 14 to rotate through the arc groove 15. The drive disk 14 drives the drive rods 16 in other positions to move through the arc groove 15, so that the drive rods 16 in different positions can move synchronously, thereby realizing the synchronous core pulling of multiple slider bodies 18.

[0032] In one embodiment, a mold cavity 12 is formed on the upper surface of the lower mold base 11, and an installation cavity 13 is formed inside the lower mold base 11. The installation cavity 13 communicates with the mold cavity 12. The drive disk 14 is rotatably connected to the inner bottom wall of the installation cavity 13. The slider body 18 is slidably connected to the inside of the installation cavity 13. The side of the slider body 18 away from the guide seat 17 is located inside the mold cavity 12. The position of the slider core-pulling assembly 101 can be defined through the installation cavity 13.

[0033] In one embodiment, the guide seat 17 is fixedly connected to the inner wall of the mounting cavity 13. The guide seat 17 can limit the position of the slider body 18. When performing the core pulling action, the slider body 18 slides along the guide seat 17. The slider body 18 is symmetrically distributed inside the lower mold base 11.

[0034] In one embodiment, four guide sleeves 35 are symmetrically installed on the upper surface of the lower mold base 11, and an upper mold base 31 is attached to the upper surface of the lower mold base 11. Four guide posts 33 are symmetrically fixedly connected to the lower surface of the upper mold base 31. The guide posts 33 are slidably connected to the inner sidewall of the guide sleeves 35. When the upper mold base 31 and the lower mold base 11 are closed, the guide sleeves 35 and the guide posts 33 can play a guiding role.

[0035] In one embodiment, an injection hole 32 is provided inside the upper mold base 31, and a mold core 34 is installed on the lower surface of the upper mold base 31. The shape of the mold core 34 is adapted to the shape of the mold cavity 12. The injection hole 32 is used to inject molten raw materials into the mold, thereby allowing the toy to be injection molded in the mold cavity 12.

[0036] In operation, this invention involves mounting the upper mold base 31 and the lower mold base 11 on a die-casting machine. The die-casting machine controls the upper mold base 31 to move downwards and close with the lower mold base 11. After mold closure, a core-pulling cylinder 19 pushes a drive rod 16 to rotate. This drive rod 16 drives a drive disc 14 to rotate clockwise via an arc groove 15. The drive disc 14, through the arc groove 15, drives other drive rods 16 to move, thereby allowing the slider bodies 18 at different positions to simultaneously approach the center of the mold cavity 12 and engage with the mold core 34. At this point, injection molding can be completed. Molten material is injected into the mold through the injection hole 32. After cooling, the toy is injection molded in the mold cavity 12. Then, the slider body 18 is pulled out. The core-pulling cylinder 19 drives a drive rod 16 to reset. The drive rod 16 drives the drive plate 14 to rotate counterclockwise through the arc groove 15. The drive plate 14 drives the drive rods 16 in other positions to move through the arc groove 15. This allows the slider bodies 18 in different positions to move away from the center of the mold cavity 12 at the same time, thus realizing the core-pulling. At this time, the upper mold base 31 can separate from the lower mold base 11 so that the toy can be taken out.

[0037] Compared with the prior art, this utility model, through the cooperation of the drive disc 14, drive rod 16, guide seat 17, core-pulling cylinder 19 and other structures, can synchronously pull the cores of multiple slider bodies 18, thereby reducing the number of cylinders used, reducing the size of the mold, and reducing production costs.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic toy injection molding apparatus, comprising a lower mold base (11), characterized in that: The lower mold base (11) is equipped with a slider core-pulling assembly (101), which includes a drive disk (14), an arc groove (15), a drive rod (16), a guide seat (17), a slider body (18), a core-pulling cylinder (19), a guide groove (20), and a connecting sleeve (21). The arc-shaped groove (15) is opened inside the drive disk (14). The top end of the drive rod (16) is fixedly connected to the lower surface of the slider body (18). The guide groove (20) is opened inside the slider body (18). The outer side wall of the guide seat (17) is slidably connected to the inner side wall of the guide groove (20). The connecting sleeve (21) is rotatably connected to the bottom of the outer side wall of the drive rod (16). The cylinder shaft of the core-pulling cylinder (19) is fixedly connected to the outer side wall of the connecting sleeve (21). The core-pulling cylinder (19) is installed on one side of the lower mold base (11). The outer side wall of the drive rod (16) is slidably connected to the inner side wall of the arc-shaped groove (15).

2. The plastic toy injection molding apparatus according to claim 1, characterized in that: The upper surface of the lower mold base (11) is provided with a mold cavity (12), and the interior of the lower mold base (11) is provided with an installation cavity (13), which is connected to the mold cavity (12).

3. The plastic toy injection molding apparatus according to claim 2, characterized in that: The drive disk (14) is rotatably connected to the inner bottom wall of the mounting cavity (13), and the slider body (18) is slidably connected to the inside of the mounting cavity (13). The side of the slider body (18) away from the guide seat (17) is located inside the mold cavity (12).

4. The plastic toy injection molding apparatus according to claim 3, characterized in that: The guide seat (17) is fixedly connected to the inner wall of the mounting cavity (13).

5. The plastic toy injection molding apparatus according to claim 4, characterized in that: Four guide sleeves (35) are symmetrically installed on the upper surface of the lower mold base (11).

6. The plastic toy injection molding apparatus according to claim 5, characterized in that: The upper surface of the lower mold base (11) is fitted with the upper mold base (31), and the lower surface of the upper mold base (31) is symmetrically fixedly connected with four guide pillars (33), which are slidably connected to the inner wall of the guide sleeve (35).

7. The plastic toy injection molding apparatus according to claim 6, characterized in that: The upper mold base (31) has an injection hole (32) inside.

8. The plastic toy injection molding apparatus according to claim 7, characterized in that: The lower surface of the upper mold base (31) is fitted with a mold core (34), the shape of which is adapted to the shape of the mold cavity (12).

Images