Automatic feeding device of extruder
By designing an automatic feeding device for extruders with a feeding belt and a deflector structure, the problem of inconsistent feeding amount was solved, achieving precise control and uniform material distribution, improving production efficiency and stability, and reducing the complexity of manual operation.
Patent Information
- Application Number
- CN202520502923.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In the current extruder feeding process, it is impossible to accurately control the feeding amount, which leads to fluctuations in material flowability, affects the stability of the melting process and production efficiency, and increases the complexity and labor intensity of manual operation.
An automatic feeding device for an extruder was designed, which adopts a feeding belt and a deflector structure. The angle of the deflector is adjusted by gear meshing and telescopic rod to precisely control the material flow rate. A crushing roller is installed inside the guardrail to prevent material agglomeration and ensure uniform distribution.
It enables precise control of material flow, improves production efficiency and stability, reduces manual intervention, lowers labor intensity, and ensures the continuity and reliability of the production process.
Smart Images

Figure CN223864272U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic feeding technology for extruders, and in particular to an automatic feeding device for extruders. Background Technology
[0002] An extruder is a type of plastic machinery primarily used to heat and plasticize polymer materials such as plastics, and then mold them into products of various shapes through a die. The basic working principle of an extruder is that the rotation of the screw generates pressure and shear force, turning solid plastic into a melt or viscous fluid, which is then shaped through a die.
[0003] In existing technologies, extruders require indirect feeding during operation. However, if the amount of material fed each time cannot be automatically controlled, inconsistent feeding amounts can cause fluctuations in the material flow of the extruder, thus affecting the stability of the melting process. Furthermore, inconsistent feeding can lead to inconsistent extrusion speeds, reducing overall production efficiency. When manual control of the feeding amount is not possible, operators need to frequently intervene to adjust the feeding, increasing the complexity and labor intensity of manual operation. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide an automatic feeding device for extruders.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic feeding device for an extruder, comprising: a feeding mechanism, an auxiliary mechanism provided on the inner surface of the feeding mechanism, the feeding mechanism including a feeding bin, a feeding belt provided on the inner wall of the feeding bin, the inner wall of the feeding bin and the outer side of the feeding belt being in rotatable contact, a guardrail provided on one side of the feeding, one side of the feeding belt contacting one side of the guardrail, one end of the guardrail being fixedly connected to one side of the feeding bin, and a lever provided on one end of the inner surface of the feeding bin, the inner surface of the feeding bin being rotatably connected to one end of the lever.
[0006] In a preferred embodiment, the auxiliary mechanism includes a crushing roller, one end of which is provided with a telescopic rod II. One end of the crushing roller is fixedly connected to one end of the telescopic rod II, the other end of the telescopic rod II is fixedly connected to one side of the feed hopper, and one end of the crushing roller contacts the inner wall of the guardrail.
[0007] In a preferred embodiment, a gear is provided on the outer side of one end of the lever, and the outer side of one end of the lever is fixedly connected to the inner wall of the gear. A toothed plate is provided on the outer side of the gear, and the outer side of the gear is slidably engaged with one side of the toothed plate.
[0008] In a preferred embodiment, a telescopic rod is provided on the inner side of one end of the toothed plate, and the inner side of one end of the toothed plate is fixedly connected to one end of the telescopic rod. A fixing plate is provided on the other end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the inner wall of the fixing plate.
[0009] In a preferred embodiment, a magnet is provided at one end of the side of the fixing plate, and the side of the fixing plate is attracted to the magnet from the opposite side. One side of the fixing plate is fixedly connected to the inner surface of the feeding hopper.
[0010] In a preferred embodiment, a drive roller is provided on the inner side of the feeding belt, and the inner side of the feeding belt is connected to the outer side of the drive roller. A motor is provided at the center end of the drive roller, and the center end of the drive roller is fixedly connected to the output end of the motor.
[0011] In a preferred embodiment, the bottom of the motor is provided with a base support, the bottom of the motor is fixedly connected to one end of the base support, and the other end of the base support is fixedly connected to one side of the base plate.
[0012] In a preferred embodiment, the top side of the base is fixedly connected to the bottom side of the feed hopper.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. When it is necessary to add material to the feeding hopper, the telescopic rod can be retracted, so that the toothed plate meshes with the gear on the push plate during the movement. Then the push plate starts to change angle and comes above the feeding belt at a 50-degree angle. As the feeding belt rotates, the material on the feeding belt will be removed by the push plate and fall into the feeding hopper. At the same time, by changing the angle of the push plate, the feeding speed and amount can be adjusted to adapt to different production needs, accurately control the material flow and feeding timing, and ensure the accuracy of each feeding.
[0015] 2. The inner wall of the guardrail is designed with crushing rollers. When the material is on the crushing rollers, it may clump together. Therefore, by adjusting the height of the crushing rollers inside the guardrail using the telescopic rod, the contact force between the rollers and the material can be changed, reducing the accumulation and clumping of the material on the rollers, thereby ensuring that the material can be evenly distributed and maintaining good flowability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an automatic feeding device for an extruder provided by this utility model.
[0017] Figure 2 This is a top view of the feeding mechanism component of an automatic feeding device for an extruder provided by this utility model.
[0018] Figure 3 This is an enlarged structural diagram of the feeding mechanism component of an automatic feeding device for an extruder provided by this utility model.
[0019] Figure 4 This utility model provides a schematic diagram of the feeding mechanism components of an automatic feeding device for an extruder.
[0020] Legend:
[0021] 1. Feeding mechanism; 11. Base plate; 12. Base support; 13. Feed hopper; 14. Fixed plate; 15. Telescopic rod one; 16. Toothed plate; 17. Gear; 18. Pulley; 19. Feeding belt; 110. Guardrail; 111. Drive roller; 112. Motor; 113. Magnet;
[0022] 2. Auxiliary mechanism; 21. Crushing roller; 22. Telescopic rod II. Detailed Implementation
[0023] 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.
[0024] Example 1: As Figures 1-4As shown, this utility model provides a technical solution: an automatic feeding device for an extruder, comprising: a feeding mechanism 1, an auxiliary mechanism 2 provided on the inner surface of the feeding mechanism 1, the feeding mechanism 1 including a feeding bin 13, a feeding belt 19 provided on the inner wall of the feeding bin 13, the inner wall of the feeding bin 13 and the outer side of the feeding belt 19 being in rotatable contact, a guardrail 110 provided on one feeding side, one side of the feeding belt 19 contacting one side of the guardrail 110, one end of the guardrail 110 being fixedly connected to one side of the feeding bin 13, a lever 18 provided on one end of the inner surface of the feeding bin 13, the inner surface of the feeding bin 13 being rotatably connected to one end of the lever 18, a gear 17 provided on the outer side of one end of the lever 18, the outer side of one end of the lever 18 being fixedly connected through the inner wall of the gear 17, a toothed plate 16 provided on the outer side of the gear 17, the outer side of the gear 17 being slidably meshing with one side of the toothed plate 16, and a telescopic rod provided on the inner side of one end of the toothed plate 16. One end of the toothed plate 16 is fixedly connected to one end of the telescopic rod 15. The other end of the telescopic rod 15 is provided with a fixing plate 14, which is fixedly connected to the inner wall of the fixing plate 14. A magnet 113 is provided on one side of the fixing plate 14, which is attracted to the opposite side of the magnet 113. One side of the fixing plate 14 is fixedly connected to the inner surface of the feeding bin. A drive roller 111 is provided on the inner side of the feeding belt 19, which is connected to the outer side of the drive roller 111. A motor 112 is provided at the center end of the drive roller 111, which is fixedly connected to the output end of the motor 112. A base support 12 is provided at the bottom end of the motor 112, which is fixedly connected to one end of the base support 12. The other end of the base support 12 is fixedly connected to one side of the base plate 11. The top side of the base support 12 is fixedly connected to the bottom side of the feeding bin 13.
[0025] In this embodiment, when using the automatic feeding device for the extruder, material can first be poured into the feeding belt 19. The feeding belt 19 penetrates the inner wall of the feeding bin and is shaped in an elliptical manner. Therefore, by starting the motor 112, the drive roller 111 drives the feeding belt 19 to rotate. If it is necessary to add material to the feeding bin, the telescopic rod 15 can be retracted, so that the toothed plate 16 engages with the gear 17 on the dial plate 18 during the movement. Then, the dial plate 18 begins to change angle, moving towards the feeding belt 19 at a 50-degree angle. Above 9, as the feeding belt 19 rotates, the material on the feeding belt 19 will be removed by the blocking of the deflector 18 and fall into the feeding bin 13. At the same time, by changing the angle of the deflector 18, the feeding speed and amount can be adjusted to adapt to different production needs, accurately control the material flow and feeding timing, and ensure the accuracy of each feeding. This effectively realizes continuous, automatic and accurate material feeding, which not only improves production efficiency and material utilization, but also enhances the stability and reliability of the production process and reduces labor costs.
[0026] Secondly, a magnet 113 is installed on the back of the dial plate 18, which can attract one side of the fixed plate 14 when the angle changes, preventing the end of the dial plate 18 from shaking when it is not in use, keeping it in the preset position, and ensuring the overall stability of the equipment.
[0027] Example 2: As Figures 1-4 As shown, the auxiliary mechanism 2 includes a crushing roller 21, one end of which is provided with a telescopic rod 22. One end of the crushing roller 21 is fixedly connected to one end of the telescopic rod 22, and the other end of the telescopic rod 22 is fixedly connected to one side of the feed hopper 13. One end of the crushing roller 21 is in contact with the inner wall of the guardrail 110.
[0028] In this embodiment, a crushing roller 21 is designed on the inner wall of the guardrail 110. When the material is on the crushing roller 21, it may agglomerate. Therefore, by adjusting the height of the crushing roller 21 inside the guardrail 110 by means of the telescopic rod 22, the contact force between the roller and the material can be changed, reducing the accumulation and agglomeration of the material on the roller, thereby ensuring that the material can be evenly distributed, maintaining good flowability, reducing possible blockages, and ensuring the continuity of production.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An automatic feeding device for an extruder, characterized in that, include: A feeding mechanism (1) is provided with an auxiliary mechanism (2) on its inner surface. The feeding mechanism (1) includes a feeding bin (13). A feeding belt (19) is provided on the inner wall of the feeding bin (13). The inner wall of the feeding bin (13) and the outer side of the feeding belt (19) are in rotatable contact. A guardrail (110) is provided on the feeding side. One side of the feeding belt (19) is in contact with one side of the guardrail (110). One end of the guardrail (110) is fixedly connected to one side of the feeding bin (13). A lever (18) is provided on one end of the inner surface of the feeding bin (13). One end of the inner surface of the feeding bin (13) is rotatably connected to one end of the lever (18).
2. The automatic feeding device for an extruder according to claim 1, characterized in that: The auxiliary mechanism (2) includes a crushing roller (21), one end of which is provided with a telescopic rod (22). One end of the crushing roller (21) is fixedly connected to one end of the telescopic rod (22), and the other end of the telescopic rod (22) is fixedly connected to one side of the feed hopper (13). One end of the crushing roller (21) is in contact with the inner wall of the guardrail (110).
3. The automatic feeding device for an extruder according to claim 1, characterized in that: A gear (17) is provided on the outer side of one end of the lever (18). The outer side of one end of the lever (18) is fixedly connected to the inner wall of the gear (17). A toothed plate (16) is provided on the outer side of the gear (17). The outer side of the gear (17) is slidably engaged with one side of the toothed plate (16).
4. The automatic feeding device for an extruder according to claim 3, characterized in that: A telescopic rod (15) is provided on the inner side of one end of the toothed plate (16). The inner side of one end of the toothed plate (16) is fixedly connected to one end of the telescopic rod (15). A fixing plate (14) is provided on the other end of the telescopic rod (15). The other end of the telescopic rod (15) is fixedly connected to the inner wall of the fixing plate (14).
5. An automatic feeding device for an extruder according to claim 4, characterized in that: A magnet (113) is provided on one side of the fixing plate (14), and the side of the fixing plate (14) is attracted to the opposite side of the magnet (113). One side of the fixing plate (14) is fixedly connected to the inner surface of the feeding bin.
6. The automatic feeding device for an extruder according to claim 1, characterized in that: A drive roller (111) is provided on the inner side of the feeding belt (19), and the inner side of the feeding belt (19) is connected to the outer side of the drive roller (111). A motor (112) is provided at the center end of the drive roller (111), and the center end of the drive roller (111) is fixedly connected to the output end of the motor (112).
7. An automatic feeding device for an extruder according to claim 6, characterized in that: The bottom end of the motor (112) is provided with a base support (12), the bottom end of the motor (112) is fixedly connected to one end of the base support (12), and the other end of the base support (12) is fixedly connected to one side of the base plate (11).
8. An automatic feeding device for an extruder according to claim 7, characterized in that: The top side of the base (12) is fixedly connected to the bottom side of the feed hopper (13).