Injection molding device for instrument shell production

By designing an injection molding device with a worktable, stripping unit, and pusher unit, the problems of low production efficiency and uneven cooling of traditional injection molding devices were solved, achieving rapid cooling and automated stripping, thus improving the production efficiency and product quality of the instrument casing.

CN223763692UActive Publication Date: 2026-01-06ZHEJIANG DAHE TECH CO LTD
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Patent Information

Application Number
CN202520037790.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2026-01-06
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

Traditional injection molding equipment suffers from problems such as low production efficiency, long cooling time, difficulty in unloading, and inconvenience in feeding materials, which affect the production efficiency and product quality of the instrument casing.

Method used

An injection molding device including a worktable, a stripping unit, and a pushing unit was designed. The moving mold and the fixed mold are separated by an electric telescopic rod. Combined with the design of the liquid inlet pipe and the cooling pipe, rapid and uniform cooling and automated material unloading are achieved.

Benefits of technology

It improved production efficiency, ensured rapid plastic shaping and product quality, and achieved automated unloading and feeding, thereby enhancing production efficiency and product stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection molding device for instrument shell production. The injection molding device comprises a workbench and a stripping unit, a fixed plate is arranged on the left side of the upper surface of the workbench, a rectangular through groove is formed in the middle of the right side of the workbench, a cooling plate is arranged on the right side of the upper surface of the workbench, a fixed mold is arranged in the middle of the left side of the cooling plate, an injection molding pipe is arranged in the middle of the right side of the cooling plate, and the injection molding pipe communicates with the bottom of the inner side of the fixed mold; a connecting plate is arranged at the bottom of the workbench and located under the rectangular through groove, connecting rods are fixedly installed at the four corners of the top of the connecting plate correspondingly, the other ends of the connecting rods are fixedly connected with the bottom of the workbench, and first supporting legs are symmetrically arranged on the left side of the bottom of the workbench front and back. The injection molding device for instrument shell production is high in cooling speed, can automatically demold a shaped injection molding shell, improves the production efficiency, and ensures the product quality at the same time.
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Description

Technical Field

[0001] This utility model relates to the field of instrument housing production technology, specifically to an injection molding device for instrument housing production. Background Technology

[0002] With the rapid development of modern industrial technology, instruments, as an important part of industrial automation and intelligence, are facing increasingly higher requirements for performance and quality. As the protective layer of instruments, the instrument housing not only needs to have good protective performance, but also needs to meet the requirements of aesthetics, durability and ease of production and processing. However, in the production process of plastic products such as instrument housings, injection molding is a common processing method; however, traditional injection molding equipment often suffers from problems such as low production efficiency, long cooling time, difficulty in unloading, and inconvenience in unloading.

[0003] In the existing technology, the production of instrument housings mostly adopts the traditional injection molding process. Although this process has certain advantages in terms of molding efficiency, product precision and production cost, it still has some shortcomings. For example, the mold cooling effect directly affects the plastic setting time and product quality. Traditional injection molding equipment often uses natural cooling or simple air cooling, which has a long cooling time and makes it difficult to ensure the uniformity of the cooling effect, thus affecting production efficiency. Therefore, we propose an injection molding device for the production of instrument housings. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses an injection molding device for producing instrument shells, the technical solution of which includes a worktable and a stripping unit;

[0005] Workbench: A fixed plate is provided on the left side of its upper surface. A rectangular through slot is provided in the middle of the right side of the workbench. A cooling plate is provided on the right side of the upper surface of the workbench. A fixed mold is provided in the middle of the left side of the cooling plate. An injection tube is provided in the middle of the right side of the cooling plate, and the injection tube is connected to the bottom of the inner side of the fixed mold. A connecting plate is provided at the bottom of the workbench, and the connecting plate is located directly below the rectangular through slot. Connecting rods are fixedly installed at the four corners of the top of the connecting plate. The other end of the connecting rods is fixedly connected to the bottom of the workbench. Support legs one is symmetrically arranged on the left side of the bottom of the workbench. Support legs two are symmetrically arranged on the right side of the bottom of the connecting plate.

[0006] The stripping unit comprises a first electric telescopic rod, a movable plate, a stripping plate, a sliding rod, a moving mold, a stripping port, a limiting plate, a fixed rod, and a clamping plate. Four sliding rods are provided, each fixedly installed at one of the four left corners of the fixed plate. The other end of each sliding rod is fixedly connected to the right surface of the cooling plate. The movable plate and the stripping plate are slidably connected to the sliding rods. The moving mold is fixedly installed in the middle of the right surface of the movable plate. The moving mold is slidably connected to the stripping port in the middle of the stripping plate, and the moving mold corresponds left and right to the fixed mold. A limiting plate is fixedly installed at the bottom of the stripping plate, located inside a rectangular through slot, limiting the stripping plate. The limiting plate restricts the stripping plate's movement. The first electric telescopic rod is fixedly installed in the middle of the fixed plate, with its telescopic end fixedly connected to the left surface of the movable plate. The fixed rod is fixedly installed at the top of the left surface of the stripping plate, with the other end passing through a through hole in the movable plate and fixedly connected to the clamping plate.

[0007] Furthermore, it also includes a material pushing unit, which comprises a fixed platform, a second electric telescopic rod, a slide groove, and a T-shaped push plate. The slide groove is opened in the middle of the connecting plate, and the T-shaped push plate is slidably connected to the inner side of the slide groove. The fixed platform is fixedly installed on the bottom surface of the connecting plate, and the second electric telescopic rod is fixedly installed on the fixed platform. The telescopic end of the second electric telescopic rod is fixedly connected to one side of the T-shaped push plate.

[0008] Furthermore, it also includes reinforcing plates, of which four are provided, and the reinforcing plates are respectively fixedly installed at the bottom of support leg one and support leg two.

[0009] Furthermore, it also includes an inlet pipe, an outlet pipe, and a cooling pipe. The inlet pipe is located at the top front side of the cooling plate and is fixedly connected to the inlet of the cooling pipe inside the cooling plate. The outlet pipe is located at the middle rear side of the cooling plate and is fixedly connected to the outlet of the cooling pipe.

[0010] Furthermore, it also includes rubber pads, a discharge plate, and baffles. There are two baffles, which are symmetrically arranged between the connecting rods. There are two rubber pads, which are symmetrically arranged on the top surface of the connecting plate. The discharge plate is fixedly installed on the front side of the connecting plate.

[0011] Furthermore, it also includes a controller, which is disposed at the top end of the left side surface of the fixed plate. The output end of the controller is electrically connected to the input end of the first electric telescopic rod and the second electric telescopic rod, and the input end of the controller is electrically connected to the output end of an external power source.

[0012] The beneficial effects of this utility model are as follows: The retraction of the first electric telescopic rod causes the moving plate to move towards the fixed plate. When a significant amount of plastic overflows from the moving mold, the stripper plate slides along the slide bar following the moving plate. When the limiting block at the bottom of the stripper plate contacts one side of the rectangular through groove, the stripper plate separates from the moving plate, allowing the stripper port to strip the shell from the moving mold. When less plastic overflows from the moving mold, the moving plate moves towards the fixed plate first, where it is blocked by the clamping plate on the fixed rod. The stripper plate then moves along with the moving plate, stripping the shell simultaneously, thus improving production efficiency. The design of the inlet pipe and cooling pipe allows the coolant to circulate fully within the cooling plate, providing rapid and uniform cooling of the injection mold, ensuring rapid plastic setting and improving product quality and stability. The extension and retraction of the second electric telescopic rod causes the T-shaped pusher plate to slide along the slide groove. Since the top of the T-shaped pusher plate is higher than the rubber pad, it pushes the injection shell that falls onto the rubber pad onto the discharge plate, thus completing automated material unloading. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0015] Figure 3 This is a schematic cross-sectional view of the present invention.

[0016] Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0017] In the diagram: 1. Workbench; 2. Fixed plate; 3. Controller; 4. Cooling plate; 5. Stripping unit; 51. First electric telescopic rod; 52. Moving plate; 53. Stripping plate; 54. Sliding rod; 55. Moving mold; 56. Stripping port; 57. Limiting plate; 58. Fixed rod; 59. Clamping plate; 6. Pushing unit; 61. Fixed platform; 62. Second electric telescopic rod; 63. Slide groove; 64. T-shaped push plate; 7. Support leg one; 8. Reinforcing plate; 9. Liquid inlet pipe; 10. Liquid outlet pipe; 11. Fixed mold; 12. Rectangular through groove; 13. Connecting rod; 14. Connecting plate; 15. Rubber pad; 16. Discharge plate; 17. Baffle; 18. Support leg two; 19. Injection pipe; 20. Cooling pipe. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 4 As shown, this utility model discloses an injection molding device for producing instrument shells, and the technical solution adopted is to include a workbench 1 and a stripping unit 5;

[0020] Workbench 1: A fixed plate 2 is provided on the left side of its upper surface. A rectangular through slot 12 is provided in the middle of the right side of workbench 1. A cooling plate 4 is provided on the right side of the upper surface of workbench 1. A fixed mold 11 is provided in the middle of the left side of cooling plate 4. An injection tube 19 is provided in the middle of the right side of cooling plate 4, and the injection tube 19 is connected to the bottom inner side of the fixed mold 11. A connecting plate 14 is provided at the bottom of workbench 1, and the connecting plate 14 is located directly below the rectangular through slot 12. Connecting rods 13 are fixedly installed at the four corners of the top of the connecting plate 14, and the other end of the connecting rods 13 is fixedly connected to the bottom of workbench 1. Support legs 1 7 are symmetrically arranged on the front and back of the left side of the bottom of workbench 1, and support legs 2 18 are symmetrically arranged on the front and back of the bottom of the connecting plate 14. The system includes a material feeding unit 6, which comprises a fixed platform 61, a second electric telescopic rod 62, a slide groove 63, and a T-shaped push plate 64. The slide groove 63 is located in the middle of the connecting plate 14, and the T-shaped push plate 64 is slidably connected to the inner side of the slide groove 63. The fixed platform 61 is fixedly installed on the bottom surface of the connecting plate 14, and the second electric telescopic rod 62 is fixedly installed on the fixed platform 61. The telescopic end of the second electric telescopic rod 62 is fixedly connected to one side of the T-shaped push plate 64. By extending and retracting the second electric telescopic rod 62, the T-shaped push plate 64 slides along the slide groove 63. Since the top of the T-shaped push plate 64 is higher than the rubber pad 15, it pushes the injection molded shell that falls on the rubber pad 15 onto the discharge plate 16, thereby completing the automated material unloading. The system also includes four reinforcing plates 8, which are fixedly installed at the bottom of support leg 1 (7) and support leg 2 (18). The reinforcing plates 8 increase the contact area between support leg 1 (7) and support leg 2 (18) and the ground, thereby improving the stability of the support. It also includes an inlet pipe 9, an outlet pipe 10, and a cooling pipe 20. The inlet pipe 9 is located at the top front side of the cooling plate 4 and is fixedly connected to the inlet of the cooling pipe 20 inside the cooling plate 4. The outlet pipe 10 is located at the middle rear side of the cooling plate 4 and is fixedly connected to the outlet of the cooling pipe 20. The inlet pipe 9 allows workers to easily drain external coolant into the cooling pipe 20, which then circulates fully within the cooling plate 4, improving the cooling efficiency of the injection mold. The outlet pipe 10 drains the cooled liquid. It also includes rubber pads 15, a discharge plate 16, and baffles 17. Two baffles 17 are symmetrically arranged between the connecting rods 13. Two rubber pads 15 are symmetrically arranged on the top surface of the connecting plate 14. The discharge plate 16 is fixedly installed on the front side of the connecting plate 14. The rubber pad 15 is used to cushion the falling shell after injection molding, preventing damage to the shaped shell. The discharge plate 16 is used to facilitate the material on the connecting plate 14 to slide off the discharge plate 16. The baffle 17 is used to prevent the falling material from sliding off the connecting plate 14.

[0021] The stripping unit 5 includes a first electric telescopic rod 51, a movable plate 52, a stripping plate 53, a slide rod 54, a moving mold 55, a stripping port 56, a limiting plate 57, a fixing rod 58, and a clamping plate 59. Four slide rods 54 are provided, each fixedly installed at one of the four left corners of the fixing plate 2. The other end of each slide rod 54 is fixedly connected to the right side surface of the cooling plate 4. The movable plate 52 and the stripping plate 53 are slidably connected to the slide rods 54. The moving mold 55 is fixedly installed in the middle of the right side surface of the movable plate 52. A stripping port 56 is provided between the moving mold 55 and the stripping plate 53. 6. A sliding connection is made, and the moving mold 55 corresponds to the fixed mold 11 on the left and right. A limiting plate 57 is fixedly installed at the bottom of the stripper plate 53, and the limiting plate 57 is located inside the rectangular through groove 12. The limiting plate 57 limits the stripper plate 53. The first electric telescopic rod 51 is fixedly installed in the middle of the fixed plate 2, and the telescopic end of the first electric telescopic rod 51 is fixedly connected to the left side surface of the moving plate 52. The fixed rod 58 is fixedly installed on the top of the left side surface of the stripper plate 53, and the other end of the fixed rod 58 passes through the through hole on the moving plate 52 and is fixedly connected to the clamping plate 59.

[0022] It also includes a controller 3, which is located at the top end of the left side surface of the fixed plate 2. The output end of the controller 3 is electrically connected to the input end of the first electric telescopic rod 51 and the second electric telescopic rod 62, and the input end of the controller 3 is electrically connected to the output end of the external power supply.

[0023] The working principle of this utility model is as follows: In use, the first electric telescopic rod 51 extends, allowing the moving mold 55 on the moving plate 52 to pass through the ejector port 56 on the ejector plate 53 and fit against the fixed mold 11 on the cooling plate 4. After connecting to the injection molding pipe 19 via an external injection molding machine, molten plastic is injected into the fixed mold 11. The inlet pipe 9 allows workers to easily drain external coolant into the cooling pipe 20, where it circulates fully within the cooling plate 4, thus improving the cooling efficiency of the injection mold. Once the plastic has solidified, the first electric telescopic rod 51 retracts, causing the moving plate 52 to move towards the fixed plate 2. When a significant amount of plastic overflows from the moving mold 55, the ejector plate 53 slides along the slide rod 54 following the moving plate 52. When the limiting plate 57 at the bottom of the stripper plate 53 contacts one side of the rectangular through groove 12, the stripper plate 53 separates from the moving plate 52, so that the stripper port 56 strips the shell on the moving mold 55. When the plastic overflows from the moving mold 55 by a small amount, the moving plate 52 moves towards the fixed plate 2 first, and is blocked by the clamping plate 59 on the fixed rod 58. Thus, the stripper plate 53 moves with the moving plate 52, and strips the shell while moving. The shell after stripping passes through the rectangular through groove 12 and falls onto the rubber pad 15. The second electric telescopic rod 62 extends and retracts, so that the T-shaped push plate 64 slides along the slide groove 63. Since the top height of the T-shaped push plate 64 is higher than the rubber pad 15, the injection molded shell that falls on the rubber pad 15 is pushed onto the discharge plate 16, thus completing the automated unloading.

[0024] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0025] Components not described in detail in this article are existing technologies.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An apparatus housing production injection molding device characterized by: Including workbench (1) and material removal unit (5); The workbench (1) is provided with a fixed plate (2) on the left side of the upper surface, a rectangular through slot (12) is formed in the middle of the right side of the workbench (1), a cooling plate (4) is arranged on the right side of the upper surface of the workbench (1), a fixed mold (11) is arranged on the left side of the middle of the cooling plate (4), an injection molding pipe (19) is arranged on the right side of the middle of the cooling plate (4), and the injection molding pipe (19) is in communication with the inside bottom of the fixed mold (11), a connecting plate (14) is arranged on the bottom of the workbench (1), and the connecting plate (14) is located directly below the rectangular through slot (12), four connecting rods (13) are fixedly installed on the top corners of the connecting plate (14) respectively, and the other end of the connecting rod (13) is fixedly connected with the bottom of the workbench (1), and a supporting leg one (7) is arranged on the left side of the bottom of the workbench (1) in a front-rear symmetrical manner, and a supporting leg two (18) is arranged on the right side of the bottom of the connecting plate (14) in a front-rear symmetrical manner; The material removal unit (5) comprises a first electric telescopic rod (51), a moving plate (52), a material removal plate (53), a sliding rod (54), a movable mold (55), a material removal port (56), a limiting plate (57), a fixed rod (58) and a clamping plate (59), four sliding rods (54) are arranged, the sliding rods (54) are fixedly installed on the left side of the four corners of the fixed plate (2) respectively, the other end of the sliding rod (54) is fixedly connected with the right side surface of the cooling plate (4), the moving plate (52) and the material removal plate (53) are slidably connected on the sliding rod (54), the movable mold (55) is fixedly installed on the right side surface of the middle of the moving plate (52), the movable mold (55) is slidably connected with the material removal port (56) in the middle of the material removal plate (53), and the movable mold (55) corresponds to the fixed mold (11) left and right, the limiting plate (57) is fixedly installed on the bottom of the material removal plate (53), and the limiting plate (57) is located inside the rectangular through slot (12), the limiting plate (57) limits the material removal plate (53), the first electric telescopic rod (51) is fixedly installed in the middle of the fixed plate (2), and the telescopic end of the first electric telescopic rod (51) is fixedly connected with the left side surface of the moving plate (52), the fixed rod (58) is fixedly installed on the left side surface top of the material removal plate (53), and the other end of the fixed rod (58) penetrates through the through hole on the moving plate (52) and is fixedly connected with the clamping plate (59).

2. An apparatus housing production injection molding device according to claim 1, characterized in that: It also comprises a material pushing unit (6), the material pushing unit (6) comprises a fixed table (61), a second electric telescopic rod (62), a sliding groove (63) and a T-shaped push plate (64), the sliding groove (63) is formed in the middle of the connecting plate (14), the T-shaped push plate (64) is slidably connected inside the sliding groove (63), the fixed table (61) is fixedly installed on the bottom surface of the connecting plate (14), the second electric telescopic rod (62) is fixedly installed on the fixed table (61), and the telescopic end of the second electric telescopic rod (62) is fixedly connected with one side of the T-shaped push plate (64).

3. An apparatus housing production injection molding device according to claim 1, characterized in that: It further includes reinforcing plates (8), four of which are fixedly installed at the bottom of the support leg one (7) and the support leg two (18) respectively.

4. An apparatus housing production injection molding device according to claim 1, characterized in that: It further includes a liquid inlet pipe (9), a liquid outlet pipe (10) and a cooling pipe (20), the liquid inlet pipe (9) is arranged at the top of the front side of the cooling plate (4), the liquid inlet pipe (9) is fixedly connected with the liquid inlet of the cooling pipe (20) arranged inside the cooling plate (4), the liquid outlet pipe (10) is arranged at the middle of the rear side of the cooling plate (4), and the liquid outlet pipe (10) is fixedly connected with the liquid outlet of the cooling pipe (20).

5. An apparatus shell production injection molding device according to claim 1, characterized in that: It further includes rubber pads (15), discharge plates (16) and baffles (17), the baffles (17) are arranged in pairs and symmetrically between the connecting rods (13), the rubber pads (15) are arranged in pairs and symmetrically on the top surface of the connecting plates (14), and the discharge plates (16) are fixedly installed on the front side of the connecting plates (14).

6. An apparatus shell production injection molding device according to claim 1, characterized in that: It further includes a controller (3) arranged at the top of the left side surface of the fixed plate (2), the output end of the controller (3) is electrically connected with the input end of the first electric telescopic rod (51) and the second electric telescopic rod (62), and the input end of the controller (3) is electrically connected with the output end of the external power supply.