Injection molding storage device for injection molding machine

By introducing a stirring and drying mechanism into the injection molding storage device, the problems of plastic particle clumping and clogging are solved, the uniformity and dryness of the material are improved, and the quality of injection molded products is ensured.

CN224116601UActive Publication Date: 2026-04-14DONGGUAN KEJIN MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing injection molding storage devices are prone to clumping and blockage when storing and conveying plastic granules, resulting in uneven material output, affecting the quality of injection molded products, and failing to meet the humidity and uniformity requirements of high-quality injection molding.

Method used

An injection molding material storage device was designed, comprising a material box, a drive motor, a shaft, a ring-shaped stirring frame, a spiral stirring blade, an air inlet mechanism, and a material outlet mechanism. It avoids clumping, reduces material moisture, and improves uniformity by stirring and blowing hot air.

Benefits of technology

It enables effective mixing and drying of plastic granules during storage and transportation, avoids clogging, improves the uniformity and dryness of materials, and ensures the quality of injection molded products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection molding material storage device for an injection molding machine, which comprises a material box, the top of the material box is fixedly connected with a driving motor, the output end of the driving motor penetrates into the material box and is fixedly connected with a shaft rod, and the bottom end of the shaft rod is rotatably connected with the bottom of the inner wall of the material box. The shaft rod is driven by the driving motor to rotate, the annular stirring frame is driven to rotate to stir materials, meanwhile, the spiral stirring blades rotate along with the shaft rod, the stirring effect on the materials is further improved, the uniformity is improved, hot air is blown into the material box during stirring through work of the air inlet mechanism, the materials are dried, and the drying efficiency is improved. And the plastic particles are stirred when the injection molding raw materials are stored and conveyed, the situation that the plastic particles cake to block the pipeline is avoided, meanwhile, the plastic particles are dried during stirring, the material humidity is reduced, the uniformity is improved, injection molding production is facilitated, and the product quality is improved.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to an injection molding material storage device for injection molding machines. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

[0003] During the operation of an injection molding machine, the storage and transportation of injection molding raw materials are crucial. Existing injection molding material storage devices have some shortcomings. For example, materials are prone to clumping and blockage during storage, leading to uneven output and affecting the quality of injection molded products. Some devices cannot fully mix and dry the materials, making it impossible for the material's moisture content and uniformity to meet the requirements of high-quality injection molding.

[0004] Therefore, it is necessary to modify the process to agitate the plastic granules during the storage and transportation of injection molding raw materials to prevent the plastic granules from clumping and clogging the pipes. At the same time, the plastic granules should be dried during agitation to reduce material moisture, improve uniformity, facilitate injection molding production, improve product quality, and make it more convenient for users. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide an injection molding material storage device for injection molding machines. This device stirs plastic granules during the storage and conveying of injection molding raw materials, preventing granule clumping and clogging of pipes. Simultaneously, it dries the plastic granules during stirring, reducing material moisture content and improving uniformity, thus facilitating injection molding production and improving product quality. This solves the problem that materials easily clump and clog during storage, leading to uneven output and affecting the quality of injection molded products; and that some devices cannot adequately stir and dry the materials, resulting in insufficient moisture content and uniformity to meet the requirements of high-quality injection molding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection molding material storage device for an injection molding machine, comprising a material box, a drive motor fixedly connected to the top of the material box, the output end of the drive motor penetrating into the interior of the material box and fixedly connected to a shaft, the bottom end of the shaft being rotatably connected to the bottom of the inner wall of the material box, a plurality of evenly distributed annular stirring racks being fixedly connected to the surface of the shaft, and spiral stirring blades being rotatably connected to the left and right sides of the inner sides of each pair of adjacent annular stirring racks, an air inlet mechanism being connected to the left side of the material box, a material outlet mechanism being connected to the bottom of the material box, and a feeding hopper being connected to the right side of the top of the material box.

[0007] As a preferred embodiment of this utility model, the air intake mechanism includes an air intake pipe connected to the left side of the material box, a heating plate is fixedly connected to the left side of the inner wall of the air intake pipe, an air intake fan located to the left of the heating plate is provided inside the air intake pipe on the left side, the output end of the air intake fan faces to the right, and auxiliary pipes are connected to both the upper and lower sides of the air intake pipe, the right end of the auxiliary pipe is connected to the left side of the material box.

[0008] As a preferred embodiment of this utility model, a filter cover is threadedly connected to the left side of the air intake pipe, an air filter element is provided inside the filter cover, and filter screens are fixedly connected to the right side of the inner wall of both the air intake pipe and the auxiliary pipe.

[0009] As a preferred embodiment of the present invention, the discharge mechanism includes an arc-shaped tube connected to the bottom of the material box, the bottom end of the arc-shaped tube being connected to a discharge pipe, a servo motor being fixedly connected to the bottom of the material box via a support plate, the output end of the servo motor penetrating into the interior of the discharge pipe and being fixedly connected to a sealing plate, the outer surface of the sealing plate being in contact with the inner wall of the discharge pipe.

[0010] As a preferred embodiment of this utility model, the top of the material box is connected to an exhaust pipe, the top of the exhaust pipe is threadedly connected to a disassembly ring, and a drying and moisture-absorbing block is fixedly connected inside the disassembly ring, with the bottom end of the drying and moisture-absorbing block extending into the interior of the material box.

[0011] As a preferred embodiment of this utility model, cleaning brushes are fixedly connected to both the front and rear sides of the outer surface of the annular mixing rack, and the outer side of the cleaning brushes is in contact with the inner wall of the material box.

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

[0013] 1. This utility model uses a feeding hopper to inject the materials to be stored and transported into the material box. Starting the drive motor rotates the shaft, which in turn rotates the annular mixing frame to agitate the materials. Simultaneously, the spiral mixing blades follow the rotation, further improving the agitation effect and uniformity. At the same time, the air intake mechanism blows hot air into the material box during agitation to dry the materials and reduce their moisture content. The discharge mechanism allows for convenient control of the discharge rate. This achieves the effect of agitating plastic granules during the storage and transport of injection molding raw materials, preventing granule clumping and pipe blockage, and simultaneously drying the plastic granules during agitation to reduce moisture content, improve uniformity, facilitate injection molding production, and enhance product quality.

[0014] 2. This utility model uses an air inlet pipe, a heating plate, an air intake fan, and an auxiliary pipe in combination. The air intake fan draws outside air into the air inlet pipe, the heating plate heats the air, and then the heated air is blown onto the surface of the material inside the hopper through the right end of the air inlet pipe and the right end of the auxiliary pipe to dry the material, reduce its moisture content, and make it convenient for users. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0017] Figure 3 This is a top sectional view of the structure of this utility model;

[0018] Figure 4 This utility model Figure 2 A magnified structural diagram of A in the middle.

[0019] In the diagram: 1. Material bin; 2. Drive motor; 3. Shaft; 4. Annular mixing frame; 5. Spiral mixing blades; 6. Air inlet mechanism; 7. Discharge mechanism; 8. Feed hopper; 9. Air inlet pipe; 10. Heating plate; 11. Air inlet fan; 12. Auxiliary pipe; 13. Filter cover; 14. Filter screen; 15. Arc-shaped pipe; 16. Discharge pipe; 17. Servo motor; 18. Sealing plate; 19. Exhaust pipe; 20. Disassembly ring; 21. Drying and moisture-absorbing block; 22. Cleaning brush plate. 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] like Figures 1 to 4 As shown, the present invention provides an injection molding material storage device for an injection molding machine, including a material box 1. A drive motor 2 is fixedly connected to the top of the material box 1. The output end of the drive motor 2 passes through the interior of the material box 1 and is fixedly connected to a shaft 3. The bottom end of the shaft 3 is rotatably connected to the bottom of the inner wall of the material box 1. A number of evenly distributed annular stirring racks 4 are fixedly connected to the surface of the shaft 3. Spiral stirring blades 5 are rotatably connected to the left and right sides of the inner side of each pair of adjacent annular stirring racks 4. An air inlet mechanism 6 is connected to the left side of the material box 1. A material outlet mechanism 7 is connected to the bottom of the material box 1. A feeding hopper 8 is connected to the right side of the top of the material box 1. A support (not shown) is provided at the bottom of the material box 1.

[0022] refer to Figure 1 and Figure 2 The air intake mechanism 6 includes an air intake pipe 9 connected to the left side of the material box 1. A heating plate 10 is fixedly connected to the left side of the inner wall of the air intake pipe 9. An air intake fan 11 located to the left of the heating plate 10 is provided inside the left side of the air intake pipe 9. The output end of the air intake fan 11 faces to the right. Auxiliary pipes 12 are connected to both the upper and lower sides of the air intake pipe 9. The right end of the auxiliary pipe 12 is connected to the left side of the material box 1.

[0023] As a technical optimization of this utility model, by setting up an air inlet pipe 9, a heating plate 10, an air intake fan 11 and an auxiliary pipe 12 for coordinated use, the air intake fan 11 draws external air into the air inlet pipe 9, the heating plate 10 heats the drawn air, and then the heated air is blown onto the surface of the material inside the material box 1 through the right end of the air inlet pipe 9 and the right end of the auxiliary pipe 12 to dry the material, reduce the material humidity, and facilitate the use of the user.

[0024] refer to Figure 1 and Figure 2 The left side of the intake pipe 9 is threaded with a filter cover 13, and an air filter element is installed inside the filter cover 13. The right side of the inner wall of the intake pipe 9 and the auxiliary pipe 12 are both fixedly connected with filter screens 14, and the pore size of the filter screen 14 is smaller than the diameter of the plastic particles.

[0025] As a technical optimization of this utility model, a filter cover 13 is set up, and an air filter element is set inside the filter cover 13 to filter the air drawn in by the air intake fan 11, reducing the content of impurities and dust in the air, and preventing dust from adhering to the material inside the material box 1, which would affect the injection molding effect. At the same time, it is convenient to remove the filter cover 13 to replace the air filter element, so as not to affect the air intake effect. By setting a filter screen 14 with a mesh diameter smaller than the material diameter, the air intake pipe 9 and auxiliary pipe 12 are protected to prevent material from flowing back into the air intake pipe 9 and auxiliary pipe 12, causing blockage and affecting normal use.

[0026] refer to Figure 1 and Figure 2 The discharge mechanism 7 includes an arc-shaped tube 15 connected to the bottom of the material box 1. The bottom end of the arc-shaped tube 15 is connected to the discharge pipe 16. The bottom of the material box 1 is fixedly connected to a servo motor 17 via a support plate. The output end of the servo motor 17 passes through the interior of the discharge pipe 16 and is fixedly connected to a sealing plate 18. The outer surface of the sealing plate 18 is in contact with the inner wall of the discharge pipe 16.

[0027] As a technical optimization of this utility model, by setting up the coordinated use of arc-shaped tube 15, discharge tube 16, servo motor 17 and sealing plate 18, multiple arc-shaped tubes 15 are used to increase the discharge speed. When the material enters the discharge tube 16, the angle of the sealing plate 18 can be adjusted by starting the servo motor 17, so as to control the discharge amount, which is convenient for users.

[0028] refer to Figure 4 The top of the material box 1 is connected to an exhaust pipe 19, and the top of the exhaust pipe 19 is threadedly connected to a disassembly ring 20. A drying and moisture-absorbing block 21 is fixedly connected inside the disassembly ring 20, and the bottom end of the drying and moisture-absorbing block 21 extends into the interior of the material box 1.

[0029] As a technical optimization of this utility model, by setting up an exhaust pipe 19, a disassembly ring 20 and a drying and moisture-absorbing block 21 for coordinated use, when the internal pressure of the material box 1 is too high and affects the air intake effect, the air containing moisture inside the material box 1 is discharged through the exhaust pipe 19. At the same time, the drying and moisture-absorbing block 21 absorbs the moisture in the material box 1, further improving the drying effect. When the drying and moisture-absorbing block 21 needs to be replaced, the disassembly ring 20 can be turned to remove it from the inside of the exhaust pipe 19 for replacement.

[0030] refer to Figure 3 Cleaning brushes 22 are fixedly connected to both the front and rear sides of the outer surface of the annular mixing rack 4, and the outer side of the cleaning brushes 22 is in contact with the inner wall of the material box 1.

[0031] As a technical optimization of this utility model, by setting a cleaning brush plate 22, when the drive motor 2 starts and drives the annular stirring frame 4 to rotate, the cleaning brush plate 22 rotates accordingly to scrape and clean the inside of the material box 1, so as to prevent the material from sticking to the inner wall of the material box 1. At the same time, the filter screen 14 is cleaned to prevent the filter screen 14 from becoming clogged.

[0032] The working principle and usage process of this utility model are as follows: The material to be stored and transported is injected into the material box 1 through the feeding hopper 8. The drive motor 2 is started to drive the shaft 3 to rotate. When the shaft 3 rotates, it drives the annular stirring frame 4 to rotate and stir the material. At the same time, the spiral stirring blades 5 follow the rotation, further improving the stirring effect and uniformity of the material. Meanwhile, through the operation of the air intake mechanism 6, hot air is blown into the material box 1 during stirring to dry the material and reduce its moisture content. At the same time, the discharge mechanism 7 can easily control the discharge amount. This achieves the effect of stirring plastic granules during the storage and transportation of injection molding raw materials, preventing plastic granules from clumping and clogging the pipes, and drying plastic granules during stirring to reduce material moisture content, improve uniformity, facilitate injection molding production, and improve product quality.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. A material storage device for an injection molding machine, comprising a material bin (1), characterized in that: A drive motor (2) is fixedly connected to the top of the material box (1). The output end of the drive motor (2) extends into the interior of the material box (1) and is fixedly connected to a shaft (3). The bottom end of the shaft (3) is rotatably connected to the bottom of the inner wall of the material box (1). Several evenly distributed annular stirring racks (4) are fixedly connected to the surface of the shaft (3). Spiral stirring blades (5) are rotatably connected to the left and right sides of the inner side of each pair of adjacent annular stirring racks (4). An air inlet mechanism (6) is connected to the left side of the material box (1). A discharge mechanism (7) is connected to the bottom of the material box (1). A feed hopper (8) is connected to the right side of the top of the material box (1).

2. The injection molding material storage device for an injection molding machine according to claim 1, characterized in that: The air intake mechanism (6) includes an air intake pipe (9) connected to the left side of the material box (1). A heating plate (10) is fixedly connected to the left side of the inner wall of the air intake pipe (9). An air intake fan (11) located to the left of the heating plate (10) is provided inside the air intake pipe (9). The output end of the air intake fan (11) faces to the right. An auxiliary pipe (12) is connected to both the upper and lower sides of the air intake pipe (9). The right end of the auxiliary pipe (12) is connected to the left side of the material box (1).

3. The injection molding material storage device for an injection molding machine according to claim 2, characterized in that: The left side of the air intake pipe (9) is threaded with a filter cover (13), and an air filter element is provided inside the filter cover (13). Filter screens (14) are fixedly connected to the right side of the inner wall of both the air intake pipe (9) and the auxiliary pipe (12).

4. The injection molding material storage device for an injection molding machine according to claim 1, characterized in that: The discharge mechanism (7) includes an arc-shaped tube (15) connected to the bottom of the material box (1). The bottom end of the arc-shaped tube (15) is connected to a discharge pipe (16). The bottom of the material box (1) is fixedly connected to a servo motor (17) via a support plate. The output end of the servo motor (17) extends into the interior of the discharge pipe (16) and is fixedly connected to a sealing plate (18). The outer surface of the sealing plate (18) is in contact with the inner wall of the discharge pipe (16).

5. The injection molding material storage device for an injection molding machine according to claim 1, characterized in that: The top of the material box (1) is connected to an exhaust pipe (19), and the top of the exhaust pipe (19) is threadedly connected to a disassembly ring (20). A drying and moisture-absorbing block (21) is fixedly connected inside the disassembly ring (20), and the bottom end of the drying and moisture-absorbing block (21) extends into the interior of the material box (1).

6. The injection molding material storage device for an injection molding machine according to claim 1, characterized in that: Cleaning brushes (22) are fixedly connected to both the front and rear sides of the outer surface of the annular mixing rack (4), and the outer side of the cleaning brushes (22) is in contact with the inner wall of the material box (1).