Injection molding machine material guiding structure

By using a drum screen and a reverse rotating scraper design, the problem of blockage caused by material adhesion in the material guiding structure of the injection molding machine is solved, achieving smooth material conveying and energy-saving and environmentally friendly effects.

CN224296406UActive Publication Date: 2026-05-29SUZHOU GET PLASTIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU GET PLASTIC TECH CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing injection molding machine material guiding structures are prone to blockage due to material adhering to the inner wall of the guide tube, affecting production efficiency, and large particles may affect product quality.

Method used

The material is sorted using a drum screen, and the material is prevented from sticking by the counter-rotating upper scraper and lower side frame. Combined with a single motor drive and gear chain transmission, the material is transported smoothly and is energy-saving and environmentally friendly.

Benefits of technology

It effectively prevents material adhesion, ensures smooth material transport, reduces energy consumption, improves production efficiency, and ensures product quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224296406U_ABST
    Figure CN224296406U_ABST
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Abstract

The utility model discloses a material guide structure of injection molding machine, including material storage box, conical tube and lower discharge pipe. Material storage box is equipped with support plate and transmission mechanism, and transmission mechanism drives inner rotating shaft and rotating pipe reverse rotation, drives upper scraper frame and downside frame reverse movement, prevents material adhesion. Material storage box top is equipped with drum screen, is used for separating large -sized granular material, and is discharged through spiral plate. The structure adopts single motor drive, passes through gear and chain transmission, realizes energy -conserving environmental protection. The utility model can effectively avoid material blockage, improves production efficiency, is applicable to injection molding production field.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a material guiding structure for an injection molding machine. Background Technology

[0002] Existing material guiding structures in injection molding machines are prone to blockage during transport due to material adhering to the inner wall of the guide tube, affecting production efficiency. Furthermore, some materials may contain larger particles, which, if fed directly into the injection molding machine, could impact product quality. Therefore, a material guiding structure capable of automatically separating large particles and preventing material adhesion is needed.

[0003] Therefore, it is of great significance to provide a material guiding structure for injection molding machines that can solve the problems existing in the current technology. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a material guiding structure for injection molding machines to solve the problem of blockage caused by material adhering to the inner wall of the material guide tube, which affects production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A material guiding structure for an injection molding machine includes a material storage bin, the bottom end of which is fixedly connected to a tapered tube, and the bottom end of which is fixedly connected to a lower discharge pipe.

[0007] A support plate is fixedly connected to the bottom of the storage box. A transmission mechanism is installed at the top of the support plate. A material leakage groove is opened on the surface of the support plate. The output shaft of the transmission mechanism is connected to an inner rotating shaft. A rotating tube is sleeved on the surface of the inner rotating shaft. An upper scraper is fixedly connected to one side of the rotating tube. A lower side frame is fixedly connected to one side of the middle part of the inner rotating shaft. A spiral blade is fixedly connected to the bottom of the inner rotating shaft.

[0008] Preferably, the upper scraper and the lower side frame are both in contact with the inner wall of the tapered tube, and the spiral blade is located inside the lower discharge pipe.

[0009] Preferably, a cover plate is fixedly connected to the top of the storage box, a feed pipe is installed on one side of the top of the cover plate, a large particle discharge pipe is installed on one side of the bottom of the storage box, a transmission rod two is rotatably connected to one side of the storage box, a drum screen is installed at one end of the transmission rod two, and a spiral plate is provided on the inner wall of the drum screen.

[0010] Preferably, a motor is installed on the other side of the top of the cover plate, and the output shaft of the motor is driven by a sprocket four. The end of the transmission rod two away from the drum screen is fixedly connected to sprocket two and sprocket three. Sprocket three and sprocket four are connected by a chain two.

[0011] Preferably, the transmission mechanism includes an upper sealing shell and a lower sealing shell, which are respectively installed at the top and bottom of the support plate. A shaft fixing plate is fixedly connected to the top of the support plate. A transmission rod is rotatably connected between the shaft fixing plate and the side wall of the storage box. A gear and a sprocket are fixedly connected to both ends of the transmission rod. The sprocket and the sprocket are connected by a chain.

[0012] Preferably, a gear fixing plate is fixedly connected to the bottom end of the support plate, a gear four is rotatably connected to one side of the gear fixing plate, and a gear two is installed at the top end of the inner rotating shaft through the support plate, with the gear two meshing with the gear one.

[0013] Preferably, the portion of the inner rotating shaft located inside the lower sealing housing is fixedly connected to gear three, and the top end of the rotating tube is located inside the lower sealing housing and is fixedly connected to gear four. Both gear four and gear three are meshed with gear four.

[0014] Preferably, the upper sealing shell is conical in shape, the large particle discharge pipe is inclined, the discharge end of the feed pipe faces the inside of the drum screen, and the feed inlet of the large particle discharge pipe is located below the discharge outlet of the drum screen.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses a drum screen to sort larger materials and employs two counter-rotating side frames to prevent material from adhering to the inner wall of the conical tube. Furthermore, the structure is driven by a single motor via gears and chains, achieving energy-saving and environmentally friendly performance.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0018] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the transmission mechanism in this utility model.

[0022] In the diagram: 1. Storage bin; 2. Large particle discharge pipe; 3. Support plate; 4. Conical pipe; 5. Upper scraper; 6. Rotating pipe; 7. Inner rotating shaft; 8. Spiral blade; 9. Lower discharge pipe; 10. Lower side frame; 11. Transmission mechanism; 12. Leakage chute; 13. Transmission rod one; 14. Sprocket one; 15. Chain one; 16. Sprocket two; 17. Sprocket three; 18. Transmission rod two; 19. Chain two; 20. Sprocket four; 21. Motor; 22. Spiral plate; 23. Cover plate; 24. Drum screen; 25. Feed pipe; 26. Shaft fixing plate; 27. Upper sealing shell; 28. Gear one; 29. ​​Gear two; 30. Gear three; 31. Lower sealing shell; 32. Gear four; 33. Gear four; 34. Gear fixing plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0024] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0025] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0026] It should also 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.

[0027] Please see Figure 1-2 This utility model provides a technical solution for the material guiding structure of an injection molding machine:

[0028] A material guiding structure for an injection molding machine, comprising:

[0029] The storage bin 1 has a tapered tube 4 fixedly connected to its bottom end, and a lower discharge pipe 9 is fixedly connected to the bottom end of the tapered tube 4.

[0030] The support plate 3 is fixedly connected to the inside of the bottom end of the storage box 1. The top of the support plate 3 is equipped with a transmission mechanism 11, and the surface of the support plate 3 is provided with a material leakage groove 12.

[0031] The inner rotating shaft 7 is connected to the output shaft of the transmission mechanism 11.

[0032] Rotating tube 6 is sleeved on the surface of inner rotating shaft 7, and an upper scraper 5 is fixedly connected to one side of it.

[0033] The lower frame 10 is fixedly connected to one side of the middle part of the inner rotating shaft 7;

[0034] The spiral blade 8 is fixedly connected to the bottom end of the inner rotating shaft 7.

[0035] Both the upper scraper 5 and the lower side frame 10 are in contact with the inner wall of the tapered tube 4;

[0036] The spiral blade 8 is located inside the lower discharge pipe 9.

[0037] Also includes:

[0038] The cover plate 23 is fixedly connected to the top of the storage box 1;

[0039] The feed pipe 25 is installed on one side of the top of the cover plate 23;

[0040] Large particle discharge pipe 2 is installed on one side of the bottom end of storage box 1;

[0041] Transmission rod 2 18 is rotatably connected to one side of storage box 1;

[0042] A drum screen 24 is installed at one end of the transmission rod 18, and its inner wall is provided with a spiral plate 22.

[0043] Also includes:

[0044] Motor 21 is installed on the other side of the top of cover plate 23;

[0045] Sprocket 4 20 is connected to the output shaft of motor 21 via a drive mechanism.

[0046] Sprockets 16 and 17 are fixedly connected to the end of transmission rod 18 away from drum screen 24;

[0047] Chain 2 19 is connected between sprocket 3 17 and sprocket 4 20.

[0048] The transmission mechanism 11 includes an upper sealing housing 27 and a lower sealing housing 31, which are respectively installed at the top and bottom of the support plate 3;

[0049] Shaft fixing plate 26 is fixedly connected to the top of support plate 3;

[0050] The transmission rod 13 is rotatably connected between the shaft fixing plate 26 and the side wall of the storage box 1;

[0051] Gear 28 and sprocket 14 are fixedly connected to both ends of transmission rod 13, respectively;

[0052] Chain 15 is connected between sprocket 14 and sprocket 26.

[0053] Also includes:

[0054] The gear fixing plate 34 is fixedly connected to the bottom end of the support plate 3;

[0055] Gear 4 33 is rotatably connected to one side of gear fixing plate 34;

[0056] Gear 29 is mounted on the top of the inner rotating shaft 7 and meshes with gear 1 28.

[0057] Gear 30 is a portion of the inner rotating shaft 7 located inside the lower sealing housing 31;

[0058] Gear 4 32 is fixedly connected to the top of the rotating tube 6 and located inside the lower sealing housing 31;

[0059] Among them, gear 4 32 and gear 3 30 are both meshed with gear 4 33.

[0060] The upper sealing housing 27 is conical;

[0061] Large particle discharge pipe 2 is installed at an angle;

[0062] The discharge end of the feed pipe 25 faces the inside of the drum screen 24;

[0063] The inlet of the large particle discharge pipe 2 is located below the outlet of the drum screen 24.

[0064] In practical use, the material guiding structure of this injection molding machine uses a drum screen 24 to screen the incoming material, while the counter-rotating upper scraper 5 and lower side frame 10 prevent material from adhering to the inner wall of the conical tube 4, ensuring smooth material conveying. Its specific working principle is as follows:

[0065] Material feeding and screening

[0066] The material enters the inside of the drum screen 24 through the feed pipe 25.

[0067] Motor 21 drives sprocket 4 20, which in turn drives sprocket 3 17 via chain 2 19, causing transmission rod 2 18 to rotate, which in turn drives drum screen 24 to rotate.

[0068] The spiral plate 22 on the inner wall of the drum screen 24 pushes large particles to one side and eventually discharges them from the large particle discharge pipe 2, while qualified materials fall into the storage bin 1 through the screen holes.

[0069] Material conveying and anti-adhesion

[0070] After the qualified material falls into the storage box 1, it enters the conical tube 4 through the material leakage trough 12 on the support plate 3.

[0071] The transmission mechanism 11 drives the inner rotating shaft 7 to rotate, which in turn drives the spiral blade 8 to push the material downwards and discharge it.

[0072] At the same time, the inner rotating shaft 7 drives the lower side frame 10 to rotate, while the rotating tube 6 rotates in the opposite direction under the transmission of gear sets 30, 32, and 33, driving the upper scraper frame 5 to move in the opposite direction.

[0073] The counter-rotation of the upper scraper 5 and the lower side frame 10 can effectively scrape off the material adhering to the inner wall of the tapered tube 4, preventing blockage.

[0074] Power transmission and energy-saving design

[0075] A single motor 21 simultaneously drives the drum screen 24 and the material guiding mechanism. Through the meshing of gear 1 28 and gear 2 29, and the cooperation of gear 3 30, gear 4 32 and gear 4 33, the inner rotating shaft 7 and the rotating tube 6 are rotated in opposite directions.

[0076] This structure reduces the number of motors, lowers energy consumption, and meets energy conservation and environmental protection requirements.

[0077] The above description is merely a preferred embodiment of this utility model and does not limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations made to these embodiments within the spirit and principles of this utility model, through conventional substitutions or methods that achieve the same function without departing from the principles and spirit of this utility model, fall within the scope of protection of this utility model.

Claims

1. A material guiding structure for an injection molding machine, characterized in that, include: The storage bin (1) has a tapered tube (4) fixedly connected to its bottom end, and the bottom end of the tapered tube (4) is fixedly connected to a lower discharge pipe (9); The support plate (3) is fixedly connected to the inside of the bottom end of the storage box (1). The top of the support plate (3) is equipped with a transmission mechanism (11). The surface of the support plate (3) is provided with a material leakage groove (12). The inner rotating shaft (7) is connected to the output shaft of the transmission mechanism (11) for transmission. A rotating tube (6) is sleeved on the surface of the inner rotating shaft (7), and an upper scraper (5) is fixedly connected to one side of it; The lower frame (10) is fixedly connected to one side of the middle part of the inner rotating shaft (7); The spiral blade (8) is fixedly connected to the bottom end of the inner rotating shaft (7).

2. The material guiding structure of the injection molding machine according to claim 1, characterized in that: The upper scraper (5) and the lower side frame (10) are both in contact with the inner wall of the tapered tube (4); The spiral blade (8) is located inside the lower discharge pipe (9).

3. The material guiding structure of the injection molding machine according to claim 1, characterized in that, Also includes: The cover plate (23) is fixedly connected to the top of the storage box (1); The feed pipe (25) is installed on one side of the top of the cover plate (23); Large particle discharge pipe (2) is installed on one side of the bottom end of the storage box (1); The second transmission rod (18) is rotatably connected to one side of the storage box (1); A drum screen (24) is installed at one end of the transmission rod (18), and its inner wall is provided with a spiral plate (22).

4. The injection molding machine material guiding structure according to claim 3, characterized in that, Also includes: The motor (21) is mounted on the other side of the top of the cover plate (23); Sprocket four (20) is connected to the output shaft of the motor (21) via a transmission. Sprockets 2 (16) and sprocket 3 (17) are fixedly connected to the end of the transmission rod 2 (18) away from the drum screen (24); Chain 2 (19) is connected between sprocket 3 (17) and sprocket 4 (20).

5. The material guiding structure of the injection molding machine according to claim 1, characterized in that: The transmission mechanism (11) includes an upper sealing shell (27) and a lower sealing shell (31), which are respectively installed at the top and bottom of the support plate (3); A shaft fixing plate (26) is fixedly connected to the top of the support plate (3); Transmission rod 1 (13) is rotatably connected between the shaft fixing plate (26) and the side wall of the storage box (1); Gear 1 (28) and sprocket 1 (14) are respectively fixedly connected to both ends of the transmission rod 1 (13); Chain 1 (15) is connected between sprocket 1 (14) and sprocket 2 (16).

6. The material guiding structure of the injection molding machine according to claim 1, characterized in that, Also includes: A gear fixing plate (34) is fixedly connected to the bottom end of the support plate (3); Gear four (33) is rotatably connected to one side of the gear fixing plate (34); Gear 2 (29) is installed at the top of the inner rotating shaft (7) and meshes with gear 1 (28).

7. The material guiding structure of the injection molding machine according to claim 1, characterized in that: Gear 3 (30) is fixedly connected to the part of the inner rotating shaft (7) located inside the lower sealing housing (31); Gear four (32) is fixedly connected to the top of the rotating tube (6) located inside the lower sealing shell (31); Among them, gear four (32) and gear three (30) are both meshed with gear four (33).

8. The material guiding structure of the injection molding machine according to claim 1, characterized in that: The upper sealing shell (27) is conical; The large particle discharge pipe (2) is inclined; The discharge end of the feed pipe (25) faces the interior of the drum screen (24); The feed inlet of the large particle discharge pipe (2) is located below the discharge outlet of the drum screen (24).