Feeding device for production of fluorinated ethylene propylene resin

By introducing a motor-driven rotating shaft and scraper structure into the feeding device, combined with spring force to control the engagement and disengagement of the plug and the discharge port, the problems of raw material blockage and agglomeration are solved, and a smooth feeding process is achieved.

CN223959591UActive Publication Date: 2026-03-03TIANJIN FRECON NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202520323826.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-03
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing feeding devices are prone to clogging the feed inlet when feeding raw materials, and the raw materials tend to accumulate and clump during storage, affecting the feeding process.

Method used

A structure including a hopper, a motor-driven rotating shaft, a hollow sleeve, a sliding column, and a scraper is designed. A spring provides elastic force to make the scraper contact the inner wall of the hopper to prevent clumping. An inclined seat and a sliding rod are set at the discharge port. The spring force controls the disengagement of the plug from the discharge port to achieve quantitative feeding.

Benefits of technology

It effectively prevents the raw materials from clogging and clumping in the silo, realizes quantitative feeding, avoids the discharge port blockage, and ensures smooth feeding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of feeding devices, and particularly relates to a feeding device for production of fluorinated ethylene propylene resin, which comprises a bin, a discharge port is fixedly connected to the bottom of the bin, a bin cover is detachably mounted on the top of the bin, a motor is fixedly mounted in the middle of the upper end of the bin cover, and the motor is connected with the discharge port. An output shaft of the motor penetrates through the bin cover and is connected with the bin cover through a bearing, and the tail end of the output shaft is fixedly connected with a rotating shaft. The inclined plane seat supported by the spring is arranged at the discharge port of the stock bin, the plug is fixed at the bottom of the inclined plane seat through the sliding rod, the discharge port is plugged by the plug under the normal condition, and when the special-shaped rod on the rotating shaft does circular motion at the inclined plane of the inclined plane seat, the inclined plane seat can be lifted by matching with the elastic force of the spring; in this way, quantitative discharging can be achieved, and the situation that the discharging port is blocked due to the fact that the discharging amount is too large at the same time is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of feeding devices, specifically a feeding device for the production of poly(perfluoroethylene) propylene resin. Background Technology

[0002] Perfluoroethylene propylene resin is a polymer material with excellent heat resistance, corrosion resistance and chemical resistance. Its production process requires the input of raw materials.

[0003] In the invention patent application with publication number CN118952493A, an antistatic feeding device for synthetic resin powder is disclosed, which relates to the field of feeding device technology. It includes a mixing tank and a support frame. A belt conveyor is set in the middle of the support frame. A stirring component for stirring raw materials is set in the middle of the inner cavity of the mixing tank. Antistatic components for removing static electricity are fixedly installed at both the front and rear ends of the mixing tank. Grounding wires are fixedly connected to both sides of the mixing tank.

[0004] The existing feeding device is prone to clogging the feed inlet when a large amount of raw material is fed in at once. In addition, the raw material tends to accumulate and clump during storage, which also affects the feeding process. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a feeding device for the production of polytetrafluoroethylene propylene resin, which solves the problem that the existing feeding device can easily clog the feed port when a large amount of raw material is fed at once, and also solves the problem that the raw material can easily accumulate and clump during storage, affecting the feeding process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for the production of poly(perfluoroethylene) propylene resin, comprising a hopper, a discharge port fixedly connected to the bottom of the hopper, a detachable hopper cover installed on the top of the hopper, a motor fixedly installed in the middle of the upper end of the hopper cover, an output shaft of the motor passing through the hopper cover and connected to the hopper cover via a bearing, a rotating shaft fixedly connected to the end of the output shaft, a hollow sleeve fixedly connected to the shaft body of the rotating shaft, a sliding column slidably connected to the inner side of the hollow sleeve, a scraper fixedly connected to the end of the sliding column, and the scraper contacting the inner wall of the hopper, and a spring provided on the inner side of the hollow sleeve.

[0007] Preferably, one end of the first spring is fixedly connected to the sliding column, and the other end of the first spring is fixedly connected to the inner surface of the hollow sleeve. By configuring the first spring, the elastic force can be applied to the scraper, ensuring it remains in contact with the inner wall of the hopper.

[0008] Preferably, the inner wall of the hopper is fixedly connected with protrusions, and the positions of the protrusions correspond to the scraper blades. The protrusions provide a reaction force to the scraper blades.

[0009] Preferably, two fixed rods are fixedly connected to the inner bottom of the hopper, and a support ring is fixedly connected to the top of the two fixed rods. A sliding rod is slidably connected inside the support ring and passes through the support ring. A inclined seat is fixedly connected to the top of the sliding rod. A shaped rod is fixedly connected to the lower section of the shaft body of the rotating shaft, and the shaped rod abuts against the inclined seat. A plug is fixedly connected to the lower end of the sliding rod, and the plug is slidably connected to the inner side of the lower opening of the discharge port. A clearing rod is fixedly connected to the lower section of the sliding rod. Through the cooperation of the inclined seat and the shaped rod, the sliding rod can be moved downward, thereby controlling the engagement and disengagement of the plug from the discharge port.

[0010] Preferably, a second spring is sleeved on the upper section of the slide rod. One end of the second spring is fixedly connected to the inclined seat, and the other end of the second spring is fixedly connected to the support ring. By providing the second spring, the elastic force can be applied to the inclined seat.

[0011] Preferably, a protective sleeve, made of rubber, is fixedly connected between the inclined seat and the support ring. The protective sleeve protects the spring and prevents material accumulation on the support ring.

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

[0013] 1. This utility model features a rotating shaft driven by an electric motor installed inside the hopper. A hollow sleeve is mounted on the rotating shaft, and a sliding column that extends and retracts due to a spring is installed inside the hollow sleeve. A scraper is installed at the end of the sliding column. This allows the material stored in the hopper to be dispersed, preventing clumping during storage and affecting material feeding. In addition, a protrusion is installed on the inner wall of the hopper. When the scraper collides with this protrusion, the spring force causes the scraper to vibrate the hopper wall, thereby preventing material from adhering to the inner wall of the hopper.

[0014] 2. This utility model features a spring-supported inclined seat at the discharge port of the hopper. A plug is fixed to the bottom of the inclined seat via a sliding rod. Under normal circumstances, the plug blocks the discharge port. When the irregular rod on the rotating shaft makes a circular motion on the inclined surface of the inclined seat, it can raise and lower the inclined seat in conjunction with the spring force, thereby controlling the disengagement of the plug from the discharge port. This allows for quantitative feeding and avoids blockage of the discharge port due to excessive feeding at the same time. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 A front sectional view;

[0017] Figure 3 This is a partial structural diagram of the present invention. Figure 1 ;

[0018] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0019] In the diagram: 1. Hopper; 101. Discharge port; 2. Hopper cover; 3. Motor; 4. Shaft; 5. Hollow sleeve; 6. Sliding column; 7. Scraper; 8. Spring 1; 9. Protrusion; 10. Irregular rod; 11. Fixing rod; 12. Support ring; 13. Sliding rod; 14. Inclined seat; 15. Plug; 16. Spring 2; 17. Protective sleeve; 18. Unblocking rod. 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] Please see Figure 1-3 A feeding device for the production of perfluoroethylene propylene resin includes a hopper 1, with a discharge port 101 fixedly connected to the bottom of the hopper 1. A detachable hopper cover 2 is installed on the top of the hopper 1. A motor 3 is fixedly installed in the middle of the upper end of the hopper cover 2. The output shaft of the motor 3 passes through the hopper cover 2 and is connected to the hopper cover 2 via a bearing. A rotating shaft 4 is fixedly connected to the end of the output shaft. A hollow sleeve 5 is fixedly connected to the shaft of the rotating shaft 4. A sliding column 6 is slidably connected to the inner side of the hollow sleeve 5. A scraper 7 is fixedly connected to the end of the sliding column 6 and contacts the inner wall of the hopper 1. A spring 8 is provided on the inner side of the hollow sleeve 5. One end of the spring 8 is fixedly connected to the sliding column 6, and the other end of the spring 8 is fixedly connected to the inner surface of the hollow sleeve 5. The spring 8 allows the elastic force to be applied to the scraper 7, ensuring that it always maintains contact with the inner wall of the hopper 1. A protrusion 9 is fixedly connected to the inner wall of the hopper 1, and the position of the protrusion 9 corresponds to the scraper 7. By setting the bump 9, a counterforce can be provided for the scraper 7.

[0022] Please see Figure 2 , Figure 4Two fixed rods 11 are fixedly connected to the bottom inner side of the hopper 1. A support ring 12 is fixedly connected to the top of the two fixed rods 11. A sliding rod 13 is slidably connected inside the support ring 12 and passes through the support ring 12. An inclined seat 14 is fixedly connected to the top of the sliding rod 13. A shaped rod 10 is fixedly connected to the lower section of the shaft of the rotating shaft 4 and abuts against the inclined seat 14. A plug 15 is fixedly connected to the lower end of the sliding rod 13 and slidably connected to the inner side of the lower opening of the discharge port 101. A clearing rod 18 is fixedly connected to the lower section of the sliding rod 13. Through the cooperation of the inclined seat 14 and the shaped rod 10, the sliding rod 13 can be moved downward, thereby controlling the disengagement of the plug 15 from the discharge port 101. A second spring 16 is sleeved on the upper section of the sliding rod 13. One end of the second spring 16 is fixedly connected to the inclined seat 14, and the other end of the second spring 16 is fixedly connected to the support ring 12. The spring 16 allows the elastic force to be applied to the inclined seat 14. A protective sleeve 17, made of rubber, is fixedly connected between the inclined seat 14 and the support ring 12. The protective sleeve 17 protects the spring 16 and prevents material accumulation on the support ring 12.

[0023] The specific implementation process of this utility model is as follows: When in use, the raw materials are first stored in the silo 1. When feeding is required, the motor 3 is started. The motor 3 drives the rotating shaft 4 to rotate. The rotating shaft 4 drives the sliding column 6 and the scraper 7 to rotate through the hollow sleeve 5, thereby breaking up the material and preventing clumping. At the same time, the rotating shaft 4 will drive the shaped rod 10 to rotate. When the shaped rod 10 makes a circular motion on the inclined surface of the inclined seat 14, it can realize the lifting and lowering of the inclined seat 14 in conjunction with the elastic force of the second spring 16. Then, the sliding rod 13 controls the disengagement and engagement of the plug 15 and the discharge port 101. This can realize quantitative feeding and avoid the discharge port 101 from being blocked due to excessive feeding at the same time. In addition, the scraper 7 will periodically collide with the protrusion 9 on the inner wall of the silo 1 during the rotation process. In conjunction with the elastic force of the first spring 8, the scraper 7 can vibrate the silo wall of the silo 1, thereby preventing the material from adhering to the inner wall of the silo 1.

[0024] 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 device for the production of polyfluoroethylene propylene resin, comprising a hopper (1), characterized in that: The bottom of the bin (1) is fixedly connected with a discharge port (101), the top of the bin (1) is detachably installed with a bin cover (2), the upper end of the middle of the bin cover (2) is fixedly installed with a motor (3), the output shaft of the motor (3) penetrates the bin cover (2) and is connected with the bin cover (2) through a bearing, the tail end of the output shaft is fixedly connected with a rotating shaft (4), the shaft body of the rotating shaft (4) is fixedly connected with a hollow sleeve (5), the inner side of the hollow sleeve (5) is slidably connected with a sliding column (6), the tail end of the sliding column (6) is fixedly connected with a scraping strip (7), and the scraping strip (7) is in contact with the inner wall of the bin (1), and the inner side of the hollow sleeve (5) is provided with a spring (8).

2. The feeding device for the production of polyfluoroethylene propylene resin according to claim 1, characterized in that: One end of the spring (8) is fixedly connected with the sliding column (6), and the other end of the spring (8) is fixedly connected to the inner surface of the hollow sleeve (5).

3. The feeding device for the production of polyfluoroethylene propylene resin according to claim 1, characterized in that: The inner wall of the bin (1) is fixedly connected with a protruding block (9), and the position of the protruding block (9) corresponds to the scraping strip (7).

4. The feeding device for the production of polyfluoroethylene propylene resin according to claim 1, characterized in that: The inner side of the bin (1) is fixedly connected with two fixed rods (11), the top of the two fixed rods (11) is fixedly connected with a supporting ring (12), the inside of the supporting ring (12) is slidably connected with a sliding rod (13), and the sliding rod (13) penetrates the supporting ring (12) and is arranged, the top of the sliding rod (13) is fixedly connected with an inclined surface seat (14), the shaft body of the lower segment of the rotating shaft (4) is fixedly connected with a special-shaped rod (10), and the special-shaped rod (10) is in contact with the inclined surface seat (14), the lower end of the sliding rod (13) is fixedly connected with a plug (15), the plug (15) is slidably connected to the inner side of the lower end opening of the discharge port (101), and the lower segment of the rod body of the sliding rod (13) is fixedly connected with a dredging rod (18).

5. The feeding device for the production of polyfluoroethylene propylene resin according to claim 4, characterized in that: The rod body of the sliding rod (13) is sleeved with a spring (16), one end of the spring (16) is fixedly connected with the inclined surface seat (14), and the other end of the spring (16) is fixedly connected with the supporting ring (12).

6. The feeding device for the production of polyfluoroethylene propylene resin according to claim 4, characterized in that: The inclined surface seat (14) and the supporting ring (12) are fixedly connected with a protective sleeve (17), and the protective sleeve (17) is made of rubber.

Citation Information

Patent Citations

  • Anti-static feeding device for synthetic resin powder

    CN118952493A