High polymer material injection molding equipment

By introducing a cooling box and cooling circulation components into the injection molding equipment for polymer materials, and combining them with a geared motor-driven ejection mechanism, the problem of uneven cooling of products after injection molding was solved, achieving rapid cooling and shaping, and improving production efficiency and product quality.

CN224170401UActive Publication Date: 2026-04-28SHANGHAI SHIDA POLYMER MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SHIDA POLYMER MATERIAL
Filing Date
2025-05-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

After injection molding, the residual heat of polymer materials is not fully dissipated, causing the molecular chains to continue to move, resulting in quality problems such as uneven shrinkage and geometric deformation. Traditional natural cooling methods are inefficient and difficult to control the cooling rate precisely, which prolongs the production cycle and poses a risk of secondary deformation.

Method used

The system employs a cooling box and cooling circulation components, including cooling pipes, a liquid storage tank, a cooling tower, and a circulation pump. The circulating flow of the cooling medium accelerates the cooling of the mold, and the threaded rod driven by the geared motor ejects the molded product, achieving rapid cooling and shaping.

Benefits of technology

It achieves efficient cooling and shaping, shortens the production cycle, avoids uneven shrinkage and geometric deformation of products, ensures product quality, and can precisely control the cooling rate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224170401U_ABST
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Abstract

The utility model relates to high polymer material injection molding equipment, which comprises a bottom plate, an upper end face of the bottom plate is fixedly connected with a mounting rack; a plurality of mold groove drums are fixedly inserted into the mold in a penetrating manner; the cooling box is fixedly connected to the upper end face of the bottom plate, the mold is arranged on the cooling box, the cooling box comprises a plurality of cooling pipes and a cooling circulation assembly, the cooling pipes are arranged on the mold groove drum, and every two adjacent cooling pipes are connected through a communicating pipe; raw materials are injected into the mold groove drum through the injection molding mechanism, cooling forming of a model in the mold groove drum is accelerated through a cooling medium in the cooling pipe, the cooling medium is driven to circularly flow and cool through the cooling circulation assembly, and the cooling effect is guaranteed; the gear motor is started, the output end of the gear motor drives the threaded rod to rotate, the threaded rod drives the ejection circular plate to move upwards by moving the threaded cylinder, then the cooled and formed model is driven to move upwards, and ejection of the model is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of polymer materials technology, and in particular to a polymer material injection molding equipment. Background Technology

[0002] Polymer materials, also known as high molecular weight polymers, are a class of materials composed of high molecular weight compounds as a matrix, combined with other additives. They include rubber, plastics, fibers, coatings, adhesives, and polymer-based composite materials. To mold polymer materials into corresponding shapes, injection molds are used for injection molding. Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automation, a wide variety of colors and shapes (from simple to complex), large and small sizes, precise product dimensions, easy product updates, and the ability to produce complex shapes. Injection molding is suitable for mass production and molding of complex-shaped products.

[0003] After injection molding, the product needs to be cooled and set promptly due to residual heat. If it proceeds directly to subsequent processing, the residual temperature will cause the molecular chains to continue moving, resulting in quality problems such as uneven shrinkage and geometric deformation. Traditional natural cooling methods have low heat exchange efficiency, which not only prolongs the production cycle of a single batch but also makes it difficult to accurately control the cooling rate, posing a risk of secondary deformation.

[0004] To address these issues, those skilled in the art have proposed a polymer material injection molding equipment. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a polymer material injection molding equipment to solve the problem that "after injection molding, the product needs to be cooled and shaped in time because the residual heat has not been fully dissipated. If it directly enters the subsequent processing, the residual temperature will cause the molecular chains to continue to move, resulting in quality problems such as uneven shrinkage and geometric deformation. Traditional natural cooling methods have low heat exchange efficiency, which not only prolongs the production cycle of a single batch, but also makes it difficult to accurately control the cooling rate, and there is a risk of secondary deformation."

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A polymer material injection molding equipment, comprising:

[0009] A base plate, wherein a mounting bracket is fixedly connected to the upper end surface of the base plate;

[0010] A mold, wherein multiple mold groove cylinders are fixedly inserted on the mold;

[0011] A cooling box, fixedly connected to the upper surface of a base plate, with the mold mounted on it, includes multiple cooling pipes and a cooling circulation assembly. The cooling pipes are mounted on the mold cavity cylinder, with adjacent cooling pipes connected by a connecting pipe. The cooling circulation assembly is used to cool and circulate the cooling medium within the cooling pipes.

[0012] The injection molding mechanism is mounted on the mounting frame and injects molten polymer material into the mold cavity.

[0013] As a preferred embodiment of the polymer material injection molding equipment of this utility model, the cooling circulation component includes a liquid storage tank, a cooling tower and a circulation pump, wherein the liquid storage tank, the cooling tower and the circulation pump are all installed on the inner wall of the cooling pipe.

[0014] In a preferred embodiment of the polymer material injection molding equipment of this utility model, the liquid storage tank and the cooling pipe are connected by a first connecting pipe, the liquid storage tank and the cooling tower are connected by a second connecting pipe, the cooling tower and the circulating pump are connected by a third connecting pipe, and the circulating pump and the cooling pipe are connected by a fourth connecting pipe.

[0015] As a preferred embodiment of the polymer material injection molding equipment of this utility model, the injection mechanism includes a liquid storage tank fixedly installed on a mounting frame and a connecting plate slidably connected to the mounting frame. The liquid storage tank contains molten polymer raw materials. Multiple metal hoses are connected to the liquid storage tank. An injection tube is fixedly connected to the lower end of each metal hose. The multiple injection tubes are all installed on the connecting plate. Telescopic cylinders are symmetrically fixedly connected to the mounting frame. The telescopic end of each telescopic cylinder is fixedly installed on the connecting plate.

[0016] In a preferred embodiment of the polymer material injection molding equipment of this utility model, a liquid filling pipe is fixedly inserted into the upper end face of the liquid storage tank, and a connecting cap is provided at the upper end of the liquid filling pipe.

[0017] As a preferred embodiment of the polymer material injection molding equipment of this utility model, it further includes an ejection mechanism. The reduction motor includes multiple reduction motors. Multiple mounting plates are fixedly connected to the inner wall of the cooling box. Each reduction motor is fixedly mounted on the mounting plate. The output end of each reduction motor is fixedly connected to a threaded rod. Each threaded rod is threadedly connected to a movable threaded cylinder. The upper end of each movable threaded cylinder is fixedly connected to an ejection circular plate. The ejection circular plate is disposed in the mold cavity cylinder.

[0018] As a preferred embodiment of the polymer material injection molding equipment of this utility model, each of the mounting plates is symmetrically fixedly connected with two vertical rods, each of the vertical rods is slidably sleeved with a slider, each slider is fixedly connected with a moving rod, and the corresponding two moving rods are fixedly connected to the moving threaded cylinder.

[0019] As a preferred embodiment of the polymer material injection molding equipment of this utility model, a controller is fixedly connected to the side wall of the cooling box, and the controller is connected to the cooling circulation component, the telescopic cylinder and the geared motor.

[0020] The beneficial effects of this utility model on a polymer material injection molding equipment:

[0021] 1. The raw material is injected into the mold cavity through the injection molding mechanism. The cooling medium in the cooling pipe accelerates the cooling and molding of the mold in the mold cavity. The cooling circulation component drives the cooling medium to circulate and cool down, ensuring the cooling effect.

[0022] 2. By starting the geared motor, the output end of the geared motor drives the threaded rod to rotate. The threaded rod drives the ejector plate to move upward through the moving threaded cylinder, which in turn drives the cooled and formed model to move upward, making it easier to eject through the model. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them:

[0024] Figure 1 This is a schematic diagram of the overall structure of a polymer material injection molding equipment.

[0025] Figure 2 This is a schematic diagram of the internal structure of the cooling box in a polymer material injection molding equipment.

[0026] Figure 3 for Figure 2Another structural diagram from another angle.

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0028] In the diagram: 100, base plate; 101, mounting bracket; 102, controller; 200, cooling tank; 201, cooling pipe; 201-1, connecting pipe; 202, cooling circulation assembly; 202a, liquid storage tank; 202b, cooling tower; 202c, circulating pump; 202d, first connecting pipe; 202e, second connecting pipe; 202f, third connecting pipe; 202g, fourth connecting pipe; 300, mold; 30 1. Mold cavity cylinder; 400. Injection molding mechanism; 401. Liquid storage tank; 401-1. Liquid filling pipe; 401-2. Connecting cover; 402. Metal hose; 403. Injection pipe; 404. Connecting plate; 405. Telescopic cylinder; 500. Ejection mechanism; 501. Gear motor; 502. Threaded rod; 503. Moving threaded cylinder; 504. Ejection plate; 505. Vertical rod; 506. Slider; 507. Moving rod. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0032] Example 1

[0033] Reference Figures 1 to 3 This is the first embodiment of the present invention, which provides a polymer material injection molding equipment, comprising:

[0034] A base plate 100, with a mounting bracket 101 fixedly connected to its upper end face;

[0035] Mold 300, with multiple mold groove cylinders 301 fixedly inserted on mold 300;

[0036] A cooling box 200 is fixedly connected to the upper surface of the base plate 100. A mold 300 is mounted on the cooling box 200. The cooling box 200 includes multiple cooling pipes 201 and a cooling circulation assembly 202. The cooling pipes 201 are mounted on the mold cavity cylinder 301, and adjacent cooling pipes 201 are connected by a connecting pipe 201-1. The cooling circulation assembly 202 is used to cool and circulate the cooling medium in the cooling pipes 201.

[0037] The injection molding mechanism 400 is mounted on the mounting frame 101 and injects molten polymer material into the mold cavity 301.

[0038] The cooling circulation assembly 202 includes a liquid storage tank 202a, a cooling tower 202b, and a circulation pump 202c. The liquid storage tank 202a, cooling tower 202b, and circulation pump 202c are all installed on the inner wall of the cooling pipe 201. The liquid storage tank 202a and the cooling pipe 201 are connected by a first connecting pipe 202d, the liquid storage tank 202a and the cooling tower 202b are connected by a second connecting pipe 202e, the cooling tower 202b and the circulation pump 202c are connected by a third connecting pipe 202f, and the circulation pump 202c and the cooling pipe 201 are connected by a fourth connecting pipe 202g. The circulation pump 202c circulates the cooling medium, which is cooled in the cooling tower 202b to ensure the cooling effect.

[0039] Specifically, the injection molding mechanism 400 includes a liquid storage tank 401 fixedly mounted on the mounting frame 101 and a connecting plate 404 slidably connected to the mounting frame 101. The liquid storage tank 401 contains molten polymer raw material. Multiple metal hoses 402 are connected to the liquid storage tank 401. Each metal hose 402 has an injection tube 403 fixedly connected to its lower end. The multiple injection tubes 403 are all mounted on the connecting plate 404. Telescopic cylinders 405 are symmetrically fixedly connected to the mounting frame 101. The telescopic end of each telescopic cylinder 405 is fixedly mounted on the connecting plate 404. By activating the telescopic cylinder 405, the telescopic end of the telescopic cylinder 405 drives the connecting plate 404 and the injection tube 403 to move downward. The injection tube 403 extends into the mold cavity cylinder 301, and the raw material in the liquid storage tank 401 is injected into the mold cavity cylinder 301.

[0040] Furthermore, a liquid addition pipe 401-1 is fixedly inserted into the upper end face of the liquid storage tank 401, and a connecting cap 401-2 is provided at the upper end of the liquid addition pipe 401-1. The raw material is added into the liquid storage tank 401 through the liquid addition pipe 401-1.

[0041] In use, by activating the telescopic cylinder 405, the telescopic end of the telescopic cylinder 405 drives the connecting plate 404 and the injection tube 403 to move downward. The injection tube 403 extends into the mold cavity cylinder 301, and the raw material in the liquid storage tank 401 is injected into the mold cavity cylinder 301. The cooling medium in the cooling pipe 201 accelerates the cooling and forming of the mold in the mold cavity cylinder 301. The cooling medium is circulated by the circulating pump 202c, and the cooling medium is cooled in the cooling tower 202b to ensure the cooling effect.

[0042] Example 2

[0043] Reference Figure 3 and Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, it also includes an ejection mechanism 500. The reduction motor 501 includes multiple reduction motors 501. Multiple mounting plates are fixedly connected to the inner wall of the cooling box 200. Each reduction motor 501 is fixedly mounted on the mounting plate. The output end of each reduction motor 501 is fixedly connected to a threaded rod 502. Each threaded rod 502 is threadedly connected to a movable threaded cylinder 503. The upper end of each movable threaded cylinder 503 is fixedly connected to an ejection disc 504. The ejection disc 504 is disposed in the mold cavity cylinder 301. By starting the reduction motor 501, the output end of the reduction motor 501 drives the threaded rod 502 to rotate. The threaded rod 502 drives the ejection disc 504 to move upward through the movable threaded cylinder 503, thereby driving the cooled and formed mold to move upward, facilitating ejection through the mold.

[0044] Furthermore, each mounting plate is symmetrically fixedly connected with two vertical rods 505, each vertical rod 505 is slidably sleeved with a slider 506, each slider 506 is fixedly connected with a moving rod 507, and the corresponding two moving rods 507 are fixedly connected to the moving threaded cylinder 503 to limit the threaded cylinder 503 and prevent the threaded cylinder 503 from rotating.

[0045] Specifically, a controller 102 is fixedly connected to the side wall of the cooling box 200. The controller 102 establishes a control connection with the cooling circulation assembly 202, the telescopic cylinder 405 and the geared motor 501.

[0046] In use, by starting the geared motor 501, the output end of the geared motor 501 drives the threaded rod 502 to rotate. The threaded rod 502 drives the ejector plate 504 to move upward through the moving threaded cylinder 503, thereby driving the cooled and formed model to move upward, so as to facilitate ejection through the model.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A polymer material injection molding equipment, characterized in that: include: A base plate (100) is fixedly connected to a mounting bracket (101) on its upper end surface; A mold (300), on which multiple mold groove cylinders (301) are fixedly inserted; A cooling box (200) is fixedly connected to the upper surface of a base plate (100). The mold (300) is mounted on the cooling box (200). The cooling box (200) includes multiple cooling pipes (201) and a cooling circulation assembly (202). The cooling pipes (201) are mounted on the mold cavity cylinder (301), and adjacent cooling pipes (201) are connected by a connecting pipe (201-1). The cooling circulation assembly (202) is used to cool and circulate the cooling medium in the cooling pipes (201). The injection molding mechanism (400) is mounted on the mounting frame (101) and injects molten polymer material into the mold cavity (301) through the injection molding mechanism (400).

2. The polymer material injection molding equipment as described in claim 1, characterized in that: The cooling circulation assembly (202) includes a liquid storage tank (202a), a cooling tower (202b), and a circulation pump (202c), all of which are installed on the inner wall of the cooling pipe (201).

3. The polymer material injection molding equipment as described in claim 2, characterized in that: The liquid storage tank (202a) and the cooling pipe (201) are connected by a first connecting pipe (202d), the liquid storage tank (202a) and the cooling tower (202b) are connected by a second connecting pipe (202e), the cooling tower (202b) and the circulating pump (202c) are connected by a third connecting pipe (202f), and the circulating pump (202c) and the cooling pipe (201) are connected by a fourth connecting pipe (202g).

4. The polymer material injection molding equipment as described in claim 3, characterized in that: The injection molding mechanism (400) includes a liquid storage tank (401) fixedly installed on a mounting frame (101) and a connecting plate (404) slidably connected to the mounting frame (101). The liquid storage tank (401) contains molten polymer raw materials. Multiple metal hoses (402) are connected to the liquid storage tank (401). Each metal hose (402) is fixedly connected to an injection tube (403) at its lower end. Multiple injection tubes (403) are installed on the connecting plate (404). Telescopic cylinders (405) are symmetrically fixedly connected to the mounting frame (101). The telescopic end of each telescopic cylinder (405) is fixedly installed on the connecting plate (404).

5. The polymer material injection molding equipment as described in claim 4, characterized in that: A liquid filling pipe (401-1) is fixedly inserted into the upper end face of the liquid storage tank (401), and a connecting cap (401-2) is provided at the upper end of the liquid filling pipe (401-1).

6. The polymer material injection molding equipment as described in claim 5, characterized in that: It also includes an ejector mechanism (500), the geared motor (501) includes multiple geared motors (501), multiple mounting plates are fixedly connected to the inner wall of the cooling box (200), each geared motor (501) is fixedly mounted on the mounting plate, each geared motor (501) output end is fixedly connected to a threaded rod (502), each threaded rod (502) is threadedly connected to a movable threaded cylinder (503), each movable threaded cylinder (503) upper end is fixedly connected to an ejector circular plate (504), the ejector circular plate (504) is disposed in the mold cavity cylinder (301).

7. The polymer material injection molding equipment as described in claim 6, characterized in that: Each mounting plate is symmetrically fixedly connected to two vertical rods (505), each vertical rod (505) is slidably sleeved with a slider (506), each slider (506) is fixedly connected to a moving rod (507), and the two corresponding moving rods (507) are fixedly connected to the moving threaded cylinder (503).

8. The polymer material injection molding equipment as described in claim 7, characterized in that: A controller (102) is fixedly connected to the side wall of the cooling box (200), and the controller (102) establishes a control connection with the cooling circulation assembly (202), the telescopic cylinder (405) and the geared motor (501).