High-pressure injection molding device for composite material

By designing a high-pressure injection molding device with a threaded cylinder driving the stirring blade and a scale, the problems of uneven material mixing and difficulty in judging residual material were solved, thus realizing uniform mixing and efficient production of composite materials.

CN223961662UActive Publication Date: 2026-03-03WUHAN PEOPLE FIGHTING ENG SPECIAL EQUIP FACTORY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520350586.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-03-03
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing high-pressure injection molding equipment struggles to achieve thorough mixing of multiple materials and cannot accurately determine the volume of remaining material in the barrel in real time, leading to uneven mixing and production interruptions.

Method used

A device comprising a threaded cylinder, a piston, a stirring blade, and a scale was designed. The threaded cylinder is driven to rotate by a motor, which in turn drives the stirring blade to mix the materials. The amount of piston descent is observed through the scale to determine the volume of remaining materials.

Benefits of technology

It enables uniform mixing and high-pressure ejection of composite materials, improving the convenience and efficiency of production and avoiding production interruptions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223961662U_ABST
    Figure CN223961662U_ABST
Patent Text Reader

Abstract

The high-pressure injection molding device comprises a base, the top of the base is fixedly provided with a material storage box through a support, the top of the material storage box is fixedly provided with a supporting plate, and the top of the supporting plate is fixedly provided with a motor through a support; by starting the motor, the motor drives the threaded barrel to rotate in a reciprocating mode, the threaded barrel rotates to drive the sleeve to rotate, the sleeve rotates to drive the square rod to rotate, the square rod rotates to drive the stirring blades to rotate, and the stirring blades rotate to achieve the effect of evenly mixing materials. After mixing, a motor can be started and an electromagnetic valve on the surface of a discharging pipe is opened, so that the motor drives a threaded barrel to rotate, the threaded barrel rotates to drive a threaded rod to extend out, the threaded rod descends to drive a piston to descend, and at the moment, the piston descends to achieve the effect of pushing out the composite materials in the material storage box at high pressure.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of high-pressure injection molding technology for composite materials, specifically a high-pressure injection molding device for composite materials. Background Technology

[0002] In the field of modern materials processing, composite materials have been widely used in many industries such as aerospace, automobile manufacturing, and electronics due to their excellent comprehensive properties, such as high strength, low density, and good corrosion resistance. High-pressure injection molding is an important molding process for composite materials, and the performance and function of its equipment directly affect the quality and production efficiency of composite material products. Existing high-pressure injection molding equipment has many shortcomings.

[0003] In terms of material mixing, traditional equipment often struggles to achieve thorough mixing of multiple materials. Since composite materials are typically composed of multiple components such as resin matrix, reinforcing fibers, and additives, and the physical and chemical properties of each component differ significantly, existing mixing mechanisms cannot effectively break up the agglomeration between materials, resulting in uneven mixing. Furthermore, judging the volume of remaining material is also a problem faced by existing equipment. During the injection molding process, it is difficult to accurately grasp the volume of remaining material in the barrel in real time, which makes it impossible for operators to replenish materials in a timely manner, easily leading to production interruptions. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure injection molding device for composite materials to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-pressure injection molding device for composite materials, comprising a base, a storage box fixedly installed on the top of the base by a bracket, a support plate fixedly installed on the top of the storage box, a motor fixedly installed on the top of the support plate by a bracket, and a threaded cylinder fixedly installed on the output shaft of the motor by a coupling.

[0006] The bottom end of the threaded cylinder passes through the support plate and extends to the outside of the support plate. The threaded cylinder is internally threaded with a threaded rod, and a piston that works with the storage box is fixedly installed at the bottom end of the threaded rod.

[0007] Preferably, the piston top has a sleeve rotatably connected to the front and rear sides through openings. A square rod is slidably connected inside the sleeve. The bottom end of the square rod is rotatably connected to the bottom of the storage box cavity through a bearing. A stirring blade is fixedly installed below the surface of the square rod, and several stirring blades are provided.

[0008] Preferably, a gear is fixedly installed at the top end of the sleeve, and a geared cylinder that cooperates with the gear is fixedly installed on the surface of the threaded cylinder.

[0009] Preferably, a scale is fixedly installed on the right side of the piston top, and the top of the scale passes through the support plate and extends to the outside of the support plate.

[0010] Preferably, the bottom of the storage bin is connected to a discharge pipe, and the surface of the storage bin is connected to a feed pipe.

[0011] Preferably, a mold body that cooperates with the discharge pipe is placed on the top of the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This high-pressure injection molding device for composite materials, by starting the motor, causes the threaded cylinder to rotate reciprocally. The rotation of the threaded cylinder causes the sleeve to rotate, which in turn causes the square rod to rotate. The rotation of the square rod causes the stirring blade to rotate, which in turn causes the stirring blade to rotate. The rotation of the stirring blade can achieve the effect of uniformly mixing the material. After mixing, the motor can be started and the solenoid valve on the surface of the discharge pipe can be opened, causing the motor to drive the threaded cylinder to rotate. The rotation of the threaded cylinder causes the threaded rod to extend, and the threaded rod descends, causing the piston to descend. At this time, the piston descends, which can achieve the effect of high-pressure ejection of the composite material in the storage box.

[0014] 2. This high-pressure injection molding device for composite materials, by setting a scale, allows the scale to descend when the piston descends. The scale can be observed through the support plate as it descends, thereby facilitating the judgment of the remaining volume of composite material in the storage bin and improving the ease of use of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the internal structure of the storage box, threaded cylinder, and sleeve of this utility model;

[0017] Figure 3 This is a schematic diagram of the threaded cylinder, threaded rod, and piston structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the sleeve, square rod, and stirring blade structure of this utility model.

[0019] In the diagram: 1. Base; 2. Storage box; 3. Support plate; 4. Motor; 5. Threaded cylinder; 6. Threaded rod; 7. Piston; 8. Discharge pipe; 9. Feed pipe; 10. Mold body; 11. Sleeve; 12. Square rod; 13. Stirring blade; 14. Gear; 15. Gear cylinder; 16. Scale. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please refer to Figure 1-4 As shown, this utility model provides a high-pressure injection molding device for composite materials, including a base 1, a material storage box 2 fixedly installed on the top of the base 1 by a bracket, a support plate 3 fixedly installed on the top of the material storage box 2, a motor 4 fixedly installed on the top of the support plate 3 by a bracket, and a threaded cylinder 5 fixedly installed on the output shaft of the motor 4 by a coupling.

[0023] Specifically, the bottom end of the threaded cylinder 5 passes through the support plate 3 and extends to the outside of the support plate 3. The threaded cylinder 5 is internally threaded with a threaded rod 6. The bottom end of the threaded rod 6 is fixedly installed with a piston 7 that works with the storage box 2. The bottom of the storage box 2 is connected to a discharge pipe 8. A solenoid valve is installed on the surface of the discharge pipe 8. The surface of the storage box 2 is connected to a feed pipe 9. A one-way valve is installed on the surface of the feed pipe 9. The top of the base 1 is placed with a mold body 10 that works with the discharge pipe 8. By setting the piston 7 and starting the motor 4 and opening the solenoid valve on the surface of the discharge pipe 8, the motor 4 drives the threaded cylinder 5 to rotate. The rotation of the threaded cylinder 5 drives the threaded rod 6 to extend. The threaded rod 6 descends and drives the piston 7 to descend. At this time, the descent of the piston 7 can achieve the effect of pushing out the composite material in the storage box 2 under high pressure.

[0024] Specifically, sleeves 11 are rotatably connected to the front and rear sides of the piston 7 through openings. Sleeves 11 and piston 7 are rotatably connected through sealed bearings. A square rod 12 is slidably connected inside sleeve 11. The bottom end of square rod 12 is rotatably connected to the bottom of the inner cavity of storage box 2 through bearings. A stirring blade 13 is fixedly installed below the surface of square rod 12, and several stirring blades 13 are provided. A gear 14 is fixedly installed at the top of sleeve 11. A toothed cylinder 15 that cooperates with gear 14 is fixedly installed on the surface of threaded cylinder 5. By setting stirring blades 13 and starting motor 4, the motor 4 drives threaded cylinder 5 to rotate reciprocally. The rotation of threaded cylinder 5 drives toothed cylinder 15 to rotate. The rotation of toothed cylinder 15 drives sleeve 11 to rotate through meshing gear 14. The rotation of sleeve 11 drives square rod 12 to rotate. The rotation of square rod 12 drives stirring blade 13 to rotate. The rotation of stirring blade 13 can achieve the effect of uniform mixing of materials.

[0025] Specifically, a scale 16 is fixedly installed on the right side of the top of the piston 7. The top of the scale 16 passes through the support plate 3 and extends to the outside of the support plate 3. By setting the scale 16, the piston 7 can drive the scale 16 to descend when it descends. The scale 16 can be observed through the support plate 3 when it descends, thereby making it easier to judge the volume of the remaining composite material in the storage box 2 and improving the convenience of using the device.

[0026] Working Principle: This utility model is a high-pressure injection molding device for composite materials. By starting the motor 4, the motor 4 drives the threaded cylinder 5 to rotate reciprocally. The rotation of the threaded cylinder 5 drives the gear cylinder 15 to rotate. The rotation of the gear cylinder 15 drives the sleeve 11 to rotate through the meshing gear 14. The rotation of the sleeve 11 drives the square rod 12 to rotate. The rotation of the square rod 12 drives the stirring blade 13 to rotate. The rotation of the stirring blade 13 can achieve the effect of uniformly mixing the material. After mixing, the motor 4 can be started and the solenoid valve on the surface of the discharge pipe 8 can be opened, so that the motor 4 drives the threaded cylinder 5 to rotate. The rotation of the threaded cylinder 5 drives the threaded rod 6 to extend. The threaded rod 6 descends and drives the piston 7 to descend. At this time, the descent of the piston 7 can achieve the effect of high-pressure ejection of the composite material in the storage box 2. In addition, by setting a scale 16, the piston 7 can drive the scale 16 to descend when it descends. The scale 16 can be observed through the support plate 3, thereby making it easier to judge the volume of the remaining composite material in the storage box 2, improving the convenience of using the device.

[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-pressure injection molding apparatus for composite materials, comprising a base (1), characterized in that: The top of the base (1) is fixedly installed with a storage box (2) by a bracket, the top of the storage box (2) is fixedly installed with a support plate (3), the top of the support plate (3) is fixedly installed with a motor (4) by a bracket, and the output shaft of the motor (4) is fixedly installed with a threaded cylinder (5) by a coupling. The bottom end of the threaded cylinder (5) passes through the support plate (3) and extends to the outside of the support plate (3). The threaded cylinder (5) is internally threaded with a threaded rod (6). The bottom end of the threaded rod (6) is fixedly installed with a piston (7) that cooperates with the storage box (2).

2. The high-pressure injection molding apparatus for composite materials according to claim 1, characterized in that: The piston (7) has a sleeve (11) rotatably connected to the front and rear sides of the top through openings. A square rod (12) is slidably connected inside the sleeve (11). The bottom end of the square rod (12) is rotatably connected to the bottom of the inner cavity of the storage box (2) through a bearing. A stirring blade (13) is fixedly installed below the surface of the square rod (12), and there are several stirring blades (13).

3. The high-pressure injection molding apparatus for composite materials according to claim 2, characterized in that: A gear (14) is fixedly installed at the top of the sleeve (11), and a toothed cylinder (15) that cooperates with the gear (14) is fixedly installed on the surface of the threaded cylinder (5).

4. The high-pressure injection molding apparatus for composite materials according to claim 1, characterized in that: A scale (16) is fixedly installed on the right side of the top of the piston (7), and the top of the scale (16) passes through the support plate (3) and extends to the outside of the support plate (3).

5. A high-pressure injection molding apparatus for composite materials according to claim 4, characterized in that: The bottom of the storage box (2) is connected to the discharge pipe (8), and the surface of the storage box (2) is connected to the feed pipe (9).

6. A high-pressure injection molding apparatus for composite materials according to claim 5, characterized in that: The base (1) has a mold body (10) placed on top of it to cooperate with the discharge pipe (8).