Injection molding machine feed mechanism

By introducing components such as cutting blades, material guide plates, and dispersing paddles into the feeding mechanism of injection molding machines, the problem of equipment blockage caused by large pieces of raw materials has been solved, achieving efficient crushing and uniform conveying of raw materials, thereby improving production efficiency and equipment stability.

CN224675392UActive Publication Date: 2026-08-25NANTONG CHENGYETONG PRECISION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521510193.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2026-08-25
Estimated Expiration
2035-07-18

AI Technical Summary

Technical Problem

Traditional injection molding machines lack effective raw material pretreatment devices in their feeding mechanisms. Large pieces of raw material can easily cause equipment blockage, increasing the failure rate and reducing production efficiency.

Method used

A feeding mechanism for an injection molding machine was designed, including components such as a cutting blade, a feeding plate, and a dispersing paddle. The raw material is pre-treated by a motor, cutting and breaking large pieces of raw material, and then screened by a screen and dried by hot air to ensure the uniformity and smooth conveying of the raw material.

Benefits of technology

It effectively avoids equipment blockage, improves the continuity and stability of production, reduces the failure rate, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of injection molding machine feeding mechanism, belong to injection molding machine technical field, including connecting frame, fixedly connected between the box of left and right two side walls in connecting frame and fixedly connected in the discharge valve of box bottom, the top of the connecting frame is equipped with the processing assembly for the pretreatment of raw material, the processing assembly includes motor fixedly connected to the top of connecting frame, the output shaft of the motor is fixedly connected with connecting rod, the outside of the connecting rod is fixedly connected with cutting knife, poking plate and scattering paddle.This injection molding machine feeding mechanism, the connecting rod is rotated by motor, the cutting knife is preliminarily cut and broken to the large block raw material into the box, while auxiliary blade works cooperatively, further enhances the cutting and breaking effect, breaks the large block raw material into smaller size, greatly improves the crushing degree of raw material, so that raw material is more easily through screen, effectively avoids the equipment jam problem caused by the size of raw material being too large.
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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 machine feeding mechanism. Background Technology

[0002] In the injection molding process, the feeding mechanism of the injection molding machine is a key link to ensure that the raw materials enter the injection mold smoothly and are formed into qualified products.

[0003] Raw materials entering injection molding machines often vary in size, and the presence of large pieces can hinder smooth conveying and even distribution. Traditional feeding mechanisms lack effective raw material pretreatment devices, allowing large pieces to directly enter subsequent processes, easily leading to equipment blockages, increased equipment failure rates, and reduced production efficiency. For example, during conveying, large pieces of raw material may get stuck in the conveying pipe or at the feed inlet, causing production interruptions and requiring manual cleaning and unblocking, which is not only time-consuming and labor-intensive but may also damage the equipment. Therefore, this paper proposes a new injection molding machine feeding mechanism to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a feeding mechanism for injection molding machines, which has advantages such as improving the feeding efficiency of injection molding machines and solves the problems mentioned in the background.

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

[0006] A feeding mechanism for an injection molding machine includes a connecting frame, a housing fixedly connected between the left and right side walls of the connecting frame, and a discharge valve fixedly connected to the bottom of the housing. The top of the connecting frame is provided with a processing component for pre-treating the raw materials.

[0007] The processing assembly includes a motor fixedly connected to the top of the connecting frame, a connecting rod fixedly connected to the output shaft of the motor, and a cutting blade, a material-pulling plate, and a dispersing paddle fixedly connected to the outside of the connecting rod.

[0008] Furthermore, a wire mesh frame is fixedly connected to the inner side of the box, and a screen is fixedly connected to the inner side of the wire mesh frame.

[0009] Furthermore, both the cutting blade and the material-pushing plate are located above the screen, with the bottom of the material-pushing plate in contact with the screen, and the dispersing paddle is located below the screen.

[0010] Furthermore, support legs are fixedly connected to the four corners of the bottom of the box, and auxiliary blades are fixedly connected to the inside of the box, with the auxiliary blades located above the screen.

[0011] Furthermore, the number of dispersing paddles is four, and the length of the four dispersing paddles decreases sequentially from top to bottom.

[0012] Furthermore, a fan is fixedly connected to the back of the housing, a processing box is fixedly connected to the air outlet of the fan, an air supply pipe is fixedly connected to the top of the processing box, and an air outlet is fixedly connected to the air outlet of the air supply pipe.

[0013] Furthermore, a heating tube is fixedly connected to the inside of the processing box, and the air supply pipe is a three-headed pipe with two air outlets.

[0014] Furthermore, the two air outlets are respectively fixedly connected to the left side and the right side of the inner top wall of the connecting frame.

[0015] Compared with the prior art, the present invention provides a feeding mechanism for an injection molding machine, which has the following advantages:

[0016] The feeding mechanism of this injection molding machine uses a motor to drive a connecting rod to rotate, causing the cutting blade to initially cut and crush large pieces of raw material entering the box. Simultaneously, auxiliary blades work together to further enhance the cutting and crushing effect, breaking large pieces of raw material into smaller sizes. This significantly improves the degree of material crushing, making it easier for the material to pass through the screen. This effectively avoids equipment blockage caused by excessively large raw material sizes, reduces equipment failure rates, ensures production continuity and stability, and improves production efficiency. The material-pushing plate is located above the screen and its bottom contacts the screen. Driven by the motor, the material-pushing plate continuously flips the raw material on the screen, preventing it from accumulating and clogging, ensuring that raw materials meeting size requirements pass smoothly through the screen and fall. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 2 This is a rear view of the structure of this utility model;

[0019] Figure 3 This is a perspective view of the connecting frame and the box body in the structure of this utility model.

[0020] In the diagram: 1. Connecting frame; 2. Box body; 3. Discharge valve; 4. Motor; 5. Connecting rod; 6. Cutting blade; 7. Material guide plate; 8. Dispersing paddle; 9. Mesh frame; 10. Screen; 11. Auxiliary blade; 12. Fan; 13. Processing box; 1301. Heating tube; 14. Air supply pipe; 15. Air outlet. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 3 The feeding mechanism of an injection molding machine in this embodiment includes a connecting frame 1, a box 2 fixedly connected between the left and right side walls of the connecting frame 1, and a discharge valve 3 fixedly connected to the bottom of the box 2. The top of the connecting frame 1 is provided with a processing component for pre-processing the raw materials.

[0023] Please see Figure 1 In this embodiment, the processing component includes a motor 4 fixedly connected to the top of the connecting frame 1, a connecting rod 5 fixedly connected to the output shaft of the motor 4, and a cutting blade 6, a material-pulling plate 7, and a dispersing paddle 8 fixedly connected to the outside of the connecting rod 5.

[0024] Specifically, a wire mesh frame 9 is fixedly connected to the inside of the box 2, and a screen 10 is fixedly connected to the inside of the wire mesh frame 9.

[0025] Specifically, the cutting blade 6 and the material-pulling plate 7 are both located above the screen 10, and the bottom of the material-pulling plate 7 is in contact with the screen 10, while the dispersing paddle 8 is located below the screen 10.

[0026] It should be noted that the cutting blade 6 is located above the screen 10. Its function is to initially cut and crush large pieces of raw material entering the housing 2, reducing the size of the raw material and facilitating subsequent processing and passage through the screen 10. The material-pushing plate 7 is also above the screen 10 and its bottom contacts the screen 10. When the motor 4 drives the connecting rod 5 to rotate, the material-pushing plate 7 continuously flips the raw material on the screen 10, preventing the raw material from accumulating and clogging the screen 10, ensuring that the raw material can pass through the screen 10 smoothly. The dispersing paddle 8 is located below the screen 10. When the raw material falls after being screened by the screen 10, the dispersing paddle 8 can further disperse the falling raw material, preventing it from clumping, ensuring the uniformity of the raw material, and providing good conditions for subsequent discharge.

[0027] Specifically, support legs are fixedly connected to the four corners of the bottom of the box 2, and auxiliary blades 11 are fixedly connected to the inside of the box 2, with the auxiliary blades 11 located above the screen 10.

[0028] It should be noted that the auxiliary blade 11 can work in conjunction with the cutting blade 6 to enhance the cutting and crushing effect on the raw materials, further improve the degree of crushing of the raw materials, and help the raw materials pass through the screen 10.

[0029] Specifically, there are four propellers 8, and the length of the four propellers 8 decreases sequentially from top to bottom.

[0030] It should be noted that this structure is designed based on the distribution of raw materials during their descent within the housing 2. During the descent, the upper layer of raw materials is relatively dispersed, and the longer dispersing paddle 8 can disperse a larger area of ​​raw materials. As the raw materials fall, the lower layer gradually concentrates, and the shorter dispersing paddle 8 can more precisely disperse the concentrated area of ​​raw materials, ensuring that the raw materials are fully and effectively dispersed throughout the entire descent process.

[0031] Specifically, a fan 12 is fixedly connected to the back of the housing 2, a processing box 13 is fixedly connected to the air outlet of the fan 12, an air supply pipe 14 is fixedly connected to the top of the processing box 13, and an air outlet 15 is fixedly connected to the air outlet of the air supply pipe 14.

[0032] Specifically, a heating tube 1301 is fixedly connected to the inside of the processing box 13, and the air supply pipe 14 is a three-headed pipe with two air outlets.

[0033] It should be noted that the heating tube 1301 is installed inside the processing box 13. Its function is to heat the airflow entering the processing box 13, turning the airflow into hot air, thereby realizing the preheating function of the raw materials.

[0034] Specifically, the two air outlets 15 are fixedly connected to the left side and the right side of the inner top wall of the connecting frame 1, respectively.

[0035] The working principle of the above embodiments is as follows:

[0036] The raw material to be processed is put into the box 2, the motor 4 is started, the output shaft of the motor 4 drives the connecting rod 5 to rotate, and the cutting blade 6 on the outside of the connecting rod 5 begins to initially cut and crush the large pieces of raw material that have entered the box 2. At the same time, the auxiliary blade 11 works in conjunction with the cutting blade 6 to enhance the cutting and crushing effect and reduce the size of the raw material.

[0037] After initial cutting, the raw material falls onto the screen 10. Driven by the connecting rod 5, the material-pulling plate 7 continuously flips the raw material on the screen 10 to prevent the raw material from accumulating and clogging the screen 10. This allows the raw material that meets the size requirements to pass through the screen 10 smoothly and fall down, while the raw material that does not meet the size requirements remains above the screen 10 and is further cut and crushed.

[0038] During the process of the raw material falling through the screen 10, the four dispersing paddles 8 located below the screen 10 disperse the raw material. Since the length of the four dispersing paddles 8 decreases from top to bottom, they can fully and effectively disperse the raw material at different positions according to the distribution of the raw material during the falling process, avoid the raw material from clumping, and ensure the uniformity of the raw material.

[0039] During the raw material processing, the blower 12 is started, and the airflow generated by the blower 12 enters the processing box 13. The heating tube 1301 in the processing box 13 heats the airflow, turning it into hot air. The hot air is delivered to two air outlets 15 through the air duct 14. The air outlets 15 spray the hot air evenly into the box 2 to preheat and dry the raw materials.

[0040] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented.

[0041] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] 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 feeding mechanism for an injection molding machine, comprising a connecting frame (1), a housing (2) fixedly connected between the left and right side walls of the connecting frame (1), and a discharge valve (3) fixedly connected to the bottom of the housing (2), characterized in that: The top of the connecting frame (1) is provided with a processing component for pre-processing raw materials; The processing assembly includes a motor (4) fixedly connected to the top of the connecting frame (1), and a connecting rod (5) fixedly connected to the output shaft of the motor (4). A cutting blade (6), a material feeding plate (7), and a dispersing paddle (8) are fixedly connected to the outside of the connecting rod (5).

2. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: A wire mesh frame (9) is fixedly connected to the inner side of the box (2), and a screen (10) is fixedly connected to the inner side of the wire mesh frame (9).

3. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: The cutting blade (6) and the material-pulling plate (7) are both located above the screen (10), and the bottom of the material-pulling plate (7) is in contact with the screen (10). The dispersing paddle (8) is located below the screen (10).

4. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: Support legs are fixedly connected to the four corners of the bottom of the box (2), and auxiliary blades (11) are fixedly connected to the inside of the box (2), with the auxiliary blades (11) located above the screen (10).

5. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: The number of the dispersing paddles (8) is four, and the length of the four dispersing paddles (8) decreases sequentially from top to bottom.

6. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: A fan (12) is fixedly connected to the back of the housing (2), a processing box (13) is fixedly connected to the air outlet of the fan (12), an air supply pipe (14) is fixedly connected to the top of the processing box (13), and an air outlet (15) is fixedly connected to the air outlet of the air supply pipe (14).

7. The feeding mechanism for an injection molding machine according to claim 6, characterized in that: A heating tube (1301) is fixedly connected to the inside of the processing box (13), and the air supply pipe (14) is a three-headed pipe with two air outlets.

8. The feeding mechanism for an injection molding machine according to claim 6, characterized in that: The two air outlets (15) are respectively fixedly connected to the left side and the right side of the inner top wall of the connecting frame (1).