Integrated injection molding machine for thermoplastic composite material

By combining a mixing box and a servo motor-driven thread-cutting push rod on an injection molding machine, the problems of fiber breakage and re-alignment in long glass fiber injection molding equipment are solved, achieving efficient and stable processing of composite materials and improving mechanical properties and production efficiency.

CN223573630UActive Publication Date: 2025-11-21ZHONGSHAN LK MASCH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423253262.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2025-11-21
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

Existing long glass fiber injection molding equipment suffers from fiber breakage and repositioning issues during processing, which affect the mechanical properties of composite materials. Furthermore, the use of multiple sets of equipment leads to processing difficulties and low efficiency.

Method used

A mixing chamber is set on one side of the injection molding machine body, equipped with a servo motor and a cutting thread pusher, which is used to cut and mix glass fiber and rubber material, and then feed it into the injection molding machine through a pneumatic conveyor to achieve integrated injection molding.

Benefits of technology

It improves the strength and processing efficiency of composite materials, reduces processing difficulty, and enhances the mechanical properties and production efficiency of composite materials.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223573630U_ABST
    Figure CN223573630U_ABST
Patent Text Reader

Abstract

The utility model discloses an integrated injection molding machine for a thermoplastic composite material. The integrated injection molding machine comprises an injection molding machine body and a material mixing box body arranged on one side of the injection molding machine body, a mixing cavity is formed in the mixing box body, a servo motor placing box is mounted on the rear side of the mixing box body in a bolting manner, a servo motor is arranged in the servo motor placing box, and a cutting thread push rod is mounted at the output end of the servo motor in a key connection manner. Fiber lines in a plurality of groups of fiber roll materials are sent out into the mixing box body to be cut off, and the mixing cavity formed in the mixing box body is matched with the cutting-off threaded push rod to complete line cutting, mixing and material pushing work, so that a sizing material fed from the interior of a discharging pipe can be mixed with cut-off glass fibers; and mixing and material pushing extrusion are completed in the continuous rotation process of the cutting-off threaded push rod, so that mixed materials are fed into the injection molding machine body through cooperation of the material conveying pipe and the material butting pipe, and injection molding work is completed.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, concretely is thermoplastic composite integrated injection molding machine. BACKGROUND

[0002] Long glass fiber injection molding is an advanced material processing technology, which combines the high strength of long glass fiber reinforced material and the processability of thermoplastic plastic, mainly showing the advantages of good mechanical properties, recyclability, light weight and low cost. Therefore, long glass fiber injection molding technology is mainly used for producing composite material parts with excellent mechanical properties and structural integrity, and is widely used in automobile, aerospace, electronics and sports equipment industries. However, the existing long glass fiber injection molding equipment has some shortcomings.

[0003] In the injection molding process of long glass fiber reinforced material, the fiber breakage and rearrangement is a problem, which will affect the mechanical properties of the composite material, and the maintenance of fiber length is crucial for the reinforcing effect of the composite material. However, in actual production, in order to improve the strength of the composite material, multiple instruments are needed to process and handle the material to improve the strength of the material, which leads to the difficulty of overall processing of the composite material and greatly reduces the processing efficiency. Therefore, a thermoplastic composite integrated injection molding machine is needed. SUMMARY

[0004] The utility model discloses a thermoplastic composite integrated injection molding machine, which further processes the raw materials by setting a mixing box on one side of the injection molding machine body, so that the composite material is more stable in use, thereby solving the technical problems mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a thermoplastic composite integrated injection molding machine, comprising an injection molding machine body and a mixing box installed on one side of the injection molding machine body.

[0006] The mixing box is internally provided with a mixing cavity, and a servo motor placing box is bolted and installed on the rear side of the mixing box.

[0007] A protective cover plate is bolted and installed on the upper surface of the mixing box, a material gathering elbow pipe is penetrated and installed on one side of the upper surface of the protective cover plate, and a discharging pipe is penetrated and installed on the side of the material gathering elbow pipe on the upper surface of the protective cover plate.

[0008] A fiber roll placing rack is bolted and installed on the rear side of the mixing box, and a plurality of groups of fiber rolls are rotatably installed in the fiber roll placing rack.

[0009] Preferably, the injection molding machine body is located on one side of the mixing box body and is provided with a butt joint pipe penetratingly installed, the butt joint pipe is provided with a pneumatic conveyor at the outer end through a sealing flange, and the injection molding machine body is provided with a detachable molding extrusion nozzle at the output end.

[0010] Preferably, a feeding pipe is communicated and installed on the front side of the mixing box body, and the feeding pipe is sealingly installed with one end of the pneumatic conveyor.

[0011] Preferably, a fiber feeding frame is installed on the upper surface of the protective cover plate at the rear side of the polymeric material elbow pipe, two groups of feeding rollers rotating in pairs upward and downward are arranged in the fiber feeding frame, and one end of each group of the fiber feeding frame is connected and installed with a driving module.

[0012] Preferably, an installation base plate is bolted and installed on the upper surface of the servo motor placing box, a limiting elbow pipe is installed on one side of the upper surface of the installation base plate, an adjusting frame is installed on the front side of the limiting elbow pipe on the upper surface of the installation base plate, a group of pressure rollers are installed in the adjusting frame, and two groups of auxiliary rollers are symmetrically and rotatably installed on both sides of the pressure rollers.

[0013] Preferably, a mounting frame is bolted and installed on the outer side of the mixing box body through a plurality of positioning bolts, and the fiber roll placing frame is installed at the top end of the mounting frame.

[0014] Preferably, the height of the output end of the limiting elbow pipe is consistent with the height between the two groups of pressure rollers and auxiliary rollers in the adjusting frame, and the use height of the feeding roller in the fiber feeding frame is consistent with the use height of the polymeric material elbow pipe.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] Through the sending of the fibers in the plurality of fiber rolls to the inside of the mixing box body for cutting, the mixing cavity opened in the inside of the mixing box body and the cutting thread push rod can complete the work of cutting, mixing and pushing, the rubber material put into the inside of the feeding pipe can be mixed with the cut glass fibers, the mixing and pushing are completed in the process of the continuous rotation of the cutting thread push rod, the mixing is sent into the inside of the injection molding machine body through the cooperation of the feeding pipe and the butt joint pipe to complete the injection molding work, the use strength of the composite material is greatly improved, the processing difficulty of the composite material is reduced, and the processing efficiency of the composite material is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a split schematic view of the mixing box body installation structure of the utility model;

[0019] Figure 3The utility model discloses a whole structure schematic diagram of injection molding machine body;

[0020] Figure 4 The utility model discloses split schematic diagram of installation structure of cutting thread push rod,

[0021] Figure 5 The utility model discloses the cutting structure schematic diagram of mixing box body.

[0022] In the drawing: 1, injection molding machine body;2, butt joint material pipe;3, pneumatic conveyer;4, forming extrusion nozzle;5, mixing box body;6, conveying pipe;7, protective cover plate;8, fiber feeding frame;9, drive module;10, gather material elbow;11, blanking pipe;12, servo motor placing box;13, cutting thread push rod;14, installation bottom plate;15, limit elbow;16, adjusting frame;17, mounting bracket;18, positioning bolt;19, fiber roll material placing frame;20, fiber roll material. Specific implementation

[0023] The utility model discloses an injection molding machine body, which comprises a mixing box body 5 mounted on one side of the injection molding machine body 1.

[0024] The utility model provides: thermoplastic composite material integration injection molding machine, as shown in the picture, including injection molding machine body 1 and install in injection molding machine body 1 one side's mixing box body 5; Figures 1-5

[0025] The mixing box body 5 is internally provided with a mixing cavity, and the rear side of the mixing box body 5 is boltedly connected with a servo motor placing box 12, which is internally provided with a servo motor.

[0026] The upper surface of the mixing box body 5 is boltedly connected with a protective cover plate 7, one side of the upper surface of the protective cover plate 7 is penetrated and connected with a material gathering elbow 10, and the lower surface of the protective cover plate 7 is penetrated and connected with a blanking pipe 11.

[0027] ​The rear side of the mixing box 5 is bolted and installed with a fiber roll placing rack 19. A plurality of groups of fiber rolls 20 are rotatably installed inside the fiber roll placing rack 19. The installed fiber roll placing rack 19 limits the in-and-out of the fiber rolls 20, so that the fiber rolls 20 can be used more stably and continuously.

[0028] As preferred, the injection molding machine body 1 is installed on one side of the mixing box 5 and penetrates the installation of the butt joint pipe 2. The butt joint pipe 2 is installed with the pneumatic conveyor 3 through the sealing flange at the outer end. The injection molding machine body 1 is installed with the detachable molding extrusion nozzle 4 at the output end. The molding extrusion nozzle 4 can be replaced according to the specific processing specifications, so as to improve the state of the composite material extrusion. At the same time, the pneumatic conveyor 3 can be connected with the feeding pipe 6 and the butt joint pipe 2, so that the material pushed out by the cut-off threaded push rod 13 can be more stably and efficiently sent into the inside of the injection molding machine body 1.

[0029] Further, the front side of the mixing box 5 is installed in communication with the feeding pipe 6. The feeding pipe 6 is sealingly installed with one end of the pneumatic conveyor 3.

[0030] Further, the upper surface of the protective cover plate 7 is installed with the fiber feeding rack 8 at the rear side of the polymeric material elbow pipe 10. The fiber feeding rack 8 is internally provided with two groups of feeding roller shafts which are rotatably attached to each other. Each group of fiber feeding rack 8 is connected and installed with the drive module 9 at one end. The drive module 9 installed at one side of the fiber feeding rack 8 controls the relative rotation of the feeding roller shafts which are rotatably attached to each other, so as to ensure the mixed feeding of each group of glass fiber line, thereby improving the stability and continuity of the glass fiber feeding.

[0031] It is worth mentioning that the upper surface of the servo motor placing box 12 is bolted and installed with the installation base plate 14. The installation base plate 14 is installed with the limiting elbow pipe 15 at one side of the upper surface. The installation base plate 14 is installed with the adjusting rack 16 at the front side of the limiting elbow pipe 15. The adjusting rack 16 is internally installed with a group of material pressing rollers. Two groups of auxiliary rollers are symmetrically and rotatably installed at both sides of the material pressing rollers. The servo motor in the servo motor placing box 12 can stably control the rotation of the cut-off threaded push rod 13. The continuous rotation of the cut-off threaded push rod 13 can ensure the cutting of the glass limiting line which is put into the inside of the mixing box 5. The continuous rotation of the cut-off threaded push rod 13 can further complete the mixing of the rubber material and the glass fiber material. The installed limiting elbow pipe 15 can concentrate the feeding of the fiber lines. The fiber lines can be concentrated and fed into the inside of the fiber feeding rack 8 through the cooperation of the material pressing rollers and the two groups of auxiliary rollers in the adjusting rack 16.

[0032] Specific, the mixing box 5 outside through a plurality of sets of positioning bolt 18 is connected with the mounting bracket 17, the fiber roll material rack 19 is installed on the top of the mounting bracket 17, the mounting bracket 17, the mounting bracket 17 installed on the outside of the mixing box 5 is positioned to the fiber roll material rack 19, the fiber roll material rack 19 is rotated to limit the fiber roll material 20, so as to better guarantee the use of glass fiber.

[0033] In addition, the height of the output end of the limiting elbow pipe 15 is consistent with the height between the two sets of pressure rollers and the auxiliary rollers in the inside of the adjusting frame 16, and the height of the feeding roller shaft in the inside of the fiber feeding frame 8 is consistent with the use height of the material gathering elbow pipe 10, and the cooperation of the limiting elbow pipe 15, the adjusting frame 16, the fiber feeding frame 8 and the material gathering elbow pipe 10 makes the concentrated input of the fiber strands into the inside of the mixing box 5.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermoplastic composite integrated injection molding machine characterized by: Injection molding machine body (1) and installed on the injection molding machine body (1) one side of the mixing box (5); The mixing box (5) is internally provided with a mixing cavity, and a servo motor placing box (12) is bolted to the rear side of the mixing box (5). A servo motor is arranged in the servo motor placing box (12), and a cut-off threaded push rod (13) is key-connected and installed at the output end of the servo motor. The cut-off threaded push rod (13) is rotatably installed in the mixing cavity. The upper surface of the mixing box (5) is bolted with a protective cover plate (7), the upper surface of the protective cover plate (7) is penetrated with a material gathering elbow (10), and the upper surface of the protective cover plate (7) is penetrated with a material gathering elbow (10). The lower side of the material gathering elbow (10) is penetrated with a material gathering elbow (10). The rear side of the mixing box (5) is bolted with a fiber roll placing rack (19), and a plurality of groups of fiber rolls (20) are rotatably installed in the fiber roll placing rack (19).

2. The thermoplastic composite integrated injection molding machine of claim 1, wherein: The injection molding machine body (1) is penetrated with a butt joint pipe (2) on one side of the mixing box (5), the butt joint pipe (2) is externally provided with a pneumatic conveyor (3) through a sealing flange, and the output end of the injection molding machine body (1) is provided with a detachable molding extrusion nozzle (4).

3. The thermoplastic composite integrated injection molding machine of claim 2, wherein: The front side of the mixing box (5) is communicated with a conveying pipe (6), and the conveying pipe (6) is sealingly installed with one end of the pneumatic conveyor (3).

4. The thermoplastic composite integrated injection molding machine of claim 3, wherein: The upper surface of the protective cover plate (7) is provided with a fiber feeding rack (8) behind the material gathering elbow (10), the fiber feeding rack (8) is internally provided with two groups of feeding rollers which are rotatably arranged in an upper and lower manner, and one end of each group of the fiber feeding rack (8) is connected with a driving module (9).

5. The thermoplastic composite integrated injection molding machine of claim 4, wherein: The upper surface of the servo motor placing box (12) is bolted with a mounting bottom plate (14), the upper surface of the mounting bottom plate (14) is provided with a limiting elbow (15) on one side, the upper surface of the mounting bottom plate (14) is provided with an adjusting rack (16) in front of the limiting elbow (15), the adjusting rack (16) is internally provided with a group of pressure rollers, and the two sides of the pressure rollers are symmetrically rotatably provided with two groups of auxiliary rollers.

6. The thermoplastic composite integrated injection molding machine of claim 5, wherein: The outer side of the mixing box (5) is bolted with a mounting rack (17) through a plurality of positioning bolts (18), and the fiber roll placing rack (19) is mounted at the top end of the mounting rack (17).

7. The thermoplastic composite integrated injection molding machine of claim 6, wherein: The limiting elbow (15) is rotatably installed in the mixing cavity, and the limiting elbow (15) is rotatably installed in the mixing cavity.