Rapid and accurate mold closing injection molding device

Abstract

The utility model discloses a quick and accurate mold closing injection molding device, which relates to the technical field of injection molds and comprises a main body provided with a positioning through groove and at least three guide components arranged on the main body and used for guiding an upper mold when the upper mold penetrates through the positioning through groove and is closed with a lower mold. The guide assembly comprises a first rack plate which is arranged in a first sliding groove formed in the upper end of the main body in a sliding mode. The main body is arranged, the positioning through groove is formed in the main body, and the clamping plate is in transmission fit with the gear, so that when an upper die is placed on the upper surface of the main body, the first rack plate is pressed downwards by the self weight of the upper die to drive the gear column to rotate, the gear column drives the second rack plate to slide, and the second rack plate drives the clamping plate connected with the second rack plate to move; the four clamping plates are used for correcting and fixing the position of the upper die to ensure that the upper die and the lower die are aligned, so that die assembly of the lower die and the upper die is quickly completed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a fast and accurate mold closing injection molding device. Background Art

[0002] An injection mold is a tool for producing plastic products. It is a processing method used in mass production of certain parts with complex shapes. It includes an upper mold and a lower mold. The mold closing requires extremely high precision to ensure that the cavity is closed and seamless. When the upper and lower molds are closed, a complete cavity is formed. The plastic raw material is injected into the cavity through the injection port of the upper mold at high pressure through the injection molding machine. After cooling and solidification, a molded product is obtained.

[0003] The current technical problems are: in the process of closing the injection mold, the injection mold is often misaligned due to improper operation of the employees. For example, instability when operating the injection molding machine or swinging the mold by hand can cause the mold to be misaligned. In order to avoid the dislocation of the injection mold caused by improper operation, it is necessary to provide training and guidance for the injection molding workers and supervise the operation of the employees, which is time-consuming and laborious. Utility Model Content

[0004] The purpose of the utility model is to provide a fast and accurate mold closing injection molding device to solve the technical problem that the existing injection molds on the market cannot complete the mold closing quickly and accurately as mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fast and accurate mold closing injection molding device, comprising a main body with a positioning slot, the device also comprising at least three guide components arranged on the main body, used to guide the upper mold when the upper mold passes through the positioning slot and closes the lower mold, the guide components comprising:

[0006] A first rack plate, which is slidably disposed in a first slide groove provided at the upper end of the main body;

[0007] A fixed plate is arranged on the top of the first rack plate, and the first rack plate is rotatably connected to a rotating plate;

[0008] An elastic structure for keeping the rotating plate flush with the fixed plate;

[0009] A gear column rotatably disposed in an inner cavity provided in the main body, and the gear column is meshed with a first rack plate;

[0010] A second rack plate is slidably disposed in a second slide groove provided on a side of the main body, and the second rack plate is meshed with a gear column;

[0011] A clamping plate is connected to the second rack plate.

[0012] As a preferred technical solution of the utility model, the fast and precise mold closing injection molding device also includes an elastic member for driving the first rack plate to reset after the upper mold is separated from the main body, one end of the elastic member is connected to the bottom of the first rack plate, and the other end of the elastic member is connected to the inner cavity of the main body.

[0013] As a preferred technical solution of the present utility model, the rapid and precise mold clamping injection molding device further includes a bracket for rotatably connecting the gear column, and the bracket is arranged in the inner cavity of the main body.

[0014] As a preferred technical solution of the present utility model, the elastic structure is a torsion spring.

[0015] As a preferred technical solution of the utility model, the fast and accurate mold clamping injection molding device also includes:

[0016] A slider disposed at the bottom of the clamping plate;

[0017] A threaded rod having one end rotatably disposed on the slider;

[0018] A fixing block is arranged on the upper end of the second rack plate, and the threaded rod cooperates with a threaded groove arranged on the fixing block.

[0019] As a preferred technical solution of the utility model, a guide block is provided at the bottom of the sliding block, and the guide block is slidably matched with a guide groove provided on the surface of the second rack plate.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model sets a main body, and opens a positioning through groove in the main body, cooperates the clamping plate with the gear transmission, and when the upper mold is placed on the upper surface of the main body, the upper mold uses its own weight to press down the first rack plate to drive the gear column to rotate, the gear column drives the second rack plate to slide, and the second rack plate drives the clamping plate connected to it to move, and the four clamping plates correct and fix the position of the upper mold to ensure that the upper and lower molds are aligned, thereby quickly completing the mold closing of the lower mold and the upper mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the external three-dimensional structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the main body, lower mold and upper mold of the utility model;

[0024] Figure 3 It is a schematic diagram of the main body of the utility model in a cutaway three-dimensional structure;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the first rack plate, the second rack plate, the gear column and the clamping plate of the utility model.

[0026] In the figure: 1. lower mold; 2. upper mold; 3. cavity; 4. first rack plate; 5. first slide groove; 6. elastic member; 7. gear column; 8. bracket; 9. second rack plate; 10. second slide groove; 11. clamping plate; 12. slider; 13. fixed block; 14. threaded rod; 15. guide block; 16. guide groove; 17. main body; 18. positioning through groove; 19. fixed plate; 20. rotating plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] See also Figure 1-Figure 4 The utility model provides a technical solution: a fast and accurate mold closing injection molding device, including a main body 17 with a positioning slot 18, and the device also includes at least three guide components arranged on the main body 17, which are used to guide the upper mold 2 when the upper mold 2 passes through the positioning slot 18 and closes with the lower mold 1. The lower mold 1 and the upper mold 2 are combined to form a complete cavity 3. In this embodiment, there are four guide components to limit the upper mold 2. The guide components include: a first rack plate 4, which is slidably arranged in a first slide groove 5 opened at the upper end of the main body 17; a fixed plate 19 which is arranged in the first A top of a rack plate 4, and the first rack plate 4 is rotatably connected to a rotating plate 20; an elastic structure, used to keep the rotating plate 20 flush with the fixed plate 19, the elastic structure is a torsion spring; a gear column 7, which is rotatably arranged in the inner cavity opened in the main body 17, and the gear column 7 is meshed with the first rack plate 4, the fast and accurate mold clamping injection molding device also includes a bracket 8 for rotatably connecting the gear column 7, and the bracket 8 is arranged in the inner cavity of the main body 17; a second rack plate 9, which is slidably arranged in a second slide groove 10 opened on the side of the main body 17, and the second rack plate 9 is meshed with the gear column 7; a clamping plate 11, which is connected to the second rack plate 9;

[0029] The above technical solution can be adopted to realize the fast and accurate closing of the upper mold 2 with the lower mold 1, and the upper mold 2 is placed on the rotating plate 20 on the upper surface of the main body 17. As the upper mold 2 presses the rotating plate 20 downward, due to the action of the torsion spring, the rotating plate 20 drives the fixed plate 19 to move downward, and the fixed plate 19 drives the first rack plate 4 connected thereto to move downward along the first slide groove 5 and then drives the gear column 7 to rotate. The gear column 7 drives the second rack plate 9 to slide along the second slide groove 10, and the second rack plate 9 drives the clamping plate 11 connected thereto to move. When the fixed plate 19 drops to the position in contact with the upper surface of the main body 17, it no longer continues to move downward. At this time, the rotating plate 20 is pressed vertically by the upper mold 2, so that the rotating plate 20 is embedded in the groove on the inner wall of the main body 17, and the four clamping plates 11 are fitted with the upper mold 2 to correct the position of the upper mold 2, thereby completing the closing of the lower mold 1 and the upper mold 2.

[0030] Further, such as Figure 4 As shown, the fast and accurate mold closing injection molding device also includes an elastic member 6 for driving the first rack plate 4 to reset after the upper mold 2 is separated from the main body 17, one end of the elastic member 6 is connected to the bottom of the first rack plate 4, and the other end of the elastic member 6 is connected to the inner cavity of the main body 17; in this embodiment, the elastic member 6 is a spring;

[0031] The above technical solution can drive the first rack plate 4 to reset. When the upper mold 2 is separated from the main body 17, the elastic member 6 drives the first rack plate 4 to reset, thereby driving the second rack plate 9 and the clamping plate 11 to reset accordingly, so as to facilitate the next mold closing guide work.

[0032] Further, such as Figure 4 As shown, the fast and accurate mold clamping injection molding device also includes: a slider 12 arranged at the bottom of the clamping plate 11; a threaded rod 14 with one end rotatably arranged on the slider 12; a fixed block 13 arranged at the upper end of the second rack plate 9, and the threaded rod 14 cooperates with the threaded groove opened in the fixed block 13; a guide block 15 is arranged at the bottom of the slider 12, and the guide block 15 is slidably matched with the guide groove 16 opened on the surface of the second rack plate 9;

[0033] When the position of the clamping plate 11 can be fine-tuned by adopting the above technical solution, the slider 12 can be pushed to slide along the guide groove 16 by rotating the threaded rod 14, so as to adjust the distance between the clamping plate 11 and the upper mold 2.

[0034] Working principle: When in use, the upper mold 2 is placed on the rotating plate 20 on the upper surface of the main body 17. As the upper mold 2 presses down the rotating plate 20, due to the action of the torsion spring, the rotating plate 20 drives the fixed plate 19 to move downward, and the fixed plate 19 drives the first rack plate 4 connected thereto to move downward along the first slide groove 5 and then drives the gear column 7 to rotate. The gear column 7 drives the second rack plate 9 to slide along the second slide groove 10, and the second rack plate 9 drives the splint 11 connected thereto to move. When the fixed plate 19 drops to the position in contact with the upper surface of the main body 17, it no longer moves downward. At this time, the rotating plate 20 is pressed vertically by the upper mold 2, so that the rotating plate 20 is embedded in the groove on the inner wall of the main body 17, and the four splints 11 are fitted with the upper mold 2 to correct the position of the upper mold 2, thereby completing the mold closing of the lower mold 1 and the upper mold 2.

[0035] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fast and accurate mold closing and injection molding device, comprising a main body (17) having a positioning through groove (18), characterized in that: The device further comprises at least three guide assemblies arranged on the main body (17) and used to guide the upper mold (2) when the upper mold (2) passes through the positioning slot (18) and is molded with the lower mold (1), and the guide assemblies comprise: A first rack plate (4) slidably disposed in a first sliding groove (5) provided at the upper end of the main body (17); A fixed plate (19) is arranged on the top of the first rack plate (4), and the first rack plate (4) is rotatably connected to a rotating plate (20); An elastic structure, used for keeping the rotating plate (20) flush with the fixed plate (19); A gear column (7) rotatably disposed in an inner cavity opened in the main body (17), and the gear column (7) is meshed with the first rack plate (4); A second rack plate (9) which is slidably disposed in a second slide groove (10) provided on a side of the main body (17), and the second rack plate (9) is meshed with the gear column (7); A clamping plate (11) is connected to the second rack plate (9).

2. The rapid and precise mold clamping injection molding device according to claim 1, characterized in that: The rapid and precise mold closing and injection molding device further comprises an elastic member (6) for driving the first rack plate (4) to return to its original position after the upper mold (2) and the main body (17) are separated, one end of the elastic member (6) being connected to the bottom of the first rack plate (4), and the other end of the elastic member (6) being connected to the inner cavity of the main body (17).

3. The rapid and precise mold clamping injection molding device according to claim 1, characterized in that: The rapid and precise mold clamping and injection molding device further comprises a bracket (8) for rotatably connecting the gear column (7), wherein the bracket (8) is arranged in the inner cavity of the main body (17).

4. The rapid and precise mold clamping and injection molding device according to claim 1, characterized in that: The elastic structure is a torsion spring.

5. The rapid and precise mold clamping and injection molding device according to claim 1, characterized in that: The rapid and precise mold clamping and injection molding device also includes: A sliding block (12) disposed at the bottom of the clamping plate (11); A threaded rod (14) having one end rotatably disposed on the slider (12); A fixing block (13) is arranged on the upper end of the second rack plate (9), and the threaded rod (14) cooperates with a threaded groove provided in the fixing block (13).

6. The rapid and precise mold clamping and injection molding device according to claim 5, characterized in that: A guide block (15) is provided at the bottom of the sliding block (12), and the guide block (15) is slidably matched with a guide groove (16) provided on the surface of the second rack plate (9).

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