Electromagnetic ferrous plastic particle sifter

Abstract

The application discloses an electromagnetic iron-containing plastic particle screening device and particularly relates to the field of plastic particle screening, which comprises a supporting frame, a collecting hopper fixedly connected to the middle part of the supporting frame, a supporting frame fixedly connected to the top of the supporting frame, a feeding baffle arranged on the top of the supporting frame, a flow divider fixedly connected to the bottom of the collecting hopper, two opening and closing mechanisms arranged on the middle part of the flow divider, a scraping mechanism arranged on the middle part of the flow divider and a plurality of cylindrical magnetic barrier poles arranged on the middle part of the supporting frame. The cylindrical magnetic barrier poles are controlled by the coils arranged in the middle part of the cylindrical magnetic barrier poles, so that the surface of the cylindrical magnetic barrier poles can be controlled to have or not have magnetic attraction force. The metal on the surface of the cylindrical magnetic barrier poles can be cleaned through the magnetization and demagnetization functions, the working efficiency is improved, there is no permanent magnet demagnetization problem when electricity is used, the magnetic force and the screening effect can be controlled through the current, and the service life and the screening effect are improved.

Description

Technical Field

[0001] This invention relates to the field of plastic particle screening technology, and more specifically, to an electromagnetic iron-containing plastic particle screener. Background Technology

[0002] Plastic granules refer to granular plastic. Generally, plastic granules have been used two or more times. The processed granules are not very good in terms of elasticity, toughness and other aspects. In daily life, recycled granules can be used to manufacture various plastic bags, buckets, basins, toys, furniture, stationery and other household items and various plastic products. When plastic granules are put into plastic extruders, screening and separation devices are often used to screen out and remove plastic particles or metal fragments, metal powder and other metals. The existing plastics processing industry uses permanent magnet magnetic racks at the front end of plastic feeders. The magnetic racks are mostly grids composed of multiple rod-shaped magnets arranged side by side, used to separate plastic particles or metal fragments and powders containing metal. However, under normal operating conditions, the permanent magnet magnetic racks demagnetize at a fixed rate of 5% per year, which affects the screening effect and service life. In addition, the permanent magnet magnetic racks do not have magnetization or demagnetization functions, and the attracted metal is difficult to clean, affecting work efficiency. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an electromagnetic iron-containing plastic particle screener to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an electromagnetic iron-containing plastic particle screener, comprising a support frame, a material hopper fixedly connected to the middle of the support frame, a support frame fixedly connected to the top of the support frame, a feeding baffle provided at the top of the support frame, a diversion plate fixedly connected to the bottom of the material hopper, two opening and closing mechanisms provided in the middle of the diversion plate, and a scraping mechanism provided in the middle of the diversion plate; The support frame has multiple cylindrical magnetic rails in the middle. A connection slot is provided on one side of the support frame at a position corresponding to the cylindrical magnetic rails, and multiple mounting mechanisms are provided on the other side. An mounting plate is fixedly connected to the bottom of the feeding baffle, and multiple positioning rods are fixedly connected to the top of the support frame. A perforated plate is provided in the middle of the feeding baffle.

[0005] Preferably, a guide plate is fixedly connected to one side of the opening of the feeding baffle, the positioning rod passes through the middle of the mounting plate and is fitted with a nut, and a wiring shell is provided in the middle of the support frame.

[0006] Preferably, the installation mechanism includes a connecting cover disposed on the side of the cylindrical magnetic rail away from the connecting slot, a connecting rod being fixedly connected to one side of the connecting cover, and the connecting cover being adapted to one end of the cylindrical magnetic rail.

[0007] Preferably, one end of the connecting rod extends to the middle of the support frame and is fixedly connected to a first limiting plate. A pull rod is fixedly connected to one side of the first limiting plate. The pull rod has a section that penetrates the wall of the support frame and is fixedly connected to a pull ring. A spring is sleeved on one end of the pull rod near the first limiting plate.

[0008] Preferably, the opening and closing mechanism includes a fixed plate fixed to one side of the support frame, a control box fixedly connected to one side of the fixed plate, two discharge holes opened in the middle of the diversion plate, an opening and closing insert plate inserted into one side of the diversion plate at a position corresponding to the discharge holes, a second limiting plate fixedly connected to one end of the opening and closing insert plate, and the top wall of the opening and closing insert plate fitting against the top wall of the diversion plate.

[0009] Preferably, a first threaded rod and a stabilizing rod are inserted into the middle of the second limiting plate. One end of the first threaded rod passes through the fixing plate and extends into the inside of the control box, where a first motor is fixedly connected. The two ends of the stabilizing rod are respectively fixedly connected to the walls of the diverter plate and the fixing plate.

[0010] Preferably, the scraping mechanism includes a movable scraper disposed on the top of the diverter plate, with limit sliders symmetrically fixedly connected to both ends of the movable scraper, and limit grooves are formed on both sides of the inner cavity of the diverter plate at positions corresponding to the limit sliders, with the limit sliders disposed inside the limit grooves.

[0011] Preferably, a second threaded rod is inserted into the middle of the movable scraper, the second threaded rod is threadedly connected to the movable scraper, one end of the second threaded rod passes through the diverter plate and is fixedly connected to a second motor, the top wall of the movable scraper is set to be conical, and the bottom wall of the movable scraper is in contact with the top wall of the diverter plate.

[0012] Preferably, the cylindrical magnetic railing includes a metal rod located in the middle of the support frame, a coil is wound around the middle of the metal rod, a protective sleeve is fitted on the outer surface of the metal rod, and connectors are connected to both ends of the metal rod.

[0013] Preferably, both ends of the protective sleeve are provided with cushioning pads, one of the connectors is adapted to the connecting slot, and the other connector is adapted to the connecting cover. The two connectors are respectively inserted into the middle of the connecting slot and the connecting cover.

[0014] The technical effects and advantages of this invention are as follows: This invention firstly utilizes a cylindrical magnetic barrier. By controlling whether the coil in the middle of the barrier is energized, the magnetic attraction on the surface of the barrier can be controlled. Furthermore, the magnetization and demagnetization functions facilitate the cleaning of the metal surface of the magnetic barrier, improving work efficiency. Using electromagnetism eliminates the demagnetization problem associated with permanent magnets. The magnetic force and screening effect can be controlled by the current, extending service life and improving screening efficiency. Additionally, the included connecting slots and installation mechanism facilitate the installation and disassembly of the cylindrical magnetic barrier, making maintenance and replacement convenient and enhancing its overall performance. The present invention also improves the screening effect by reducing the flow rate and velocity of raw materials passing between multiple cylindrical magnetic bars through the perforated plate. The diversion plate and opening and closing mechanism make it easy to discharge raw materials and metal waste separately through the discharge hole, which facilitates separation and cleaning and improves work efficiency. The scraping mechanism can prevent some particles from being located on the top of the opening and closing plate during discharge, thus avoiding affecting the separation and discharge effect. The present invention also protects the wiring by setting a wiring shell, facilitates material feeding by using a guide plate, facilitates the installation and disassembly of the feeding baffle by using an installation plate and a positioning rod, provides buffer protection for the installation of the cylindrical magnetic rail by setting a buffer pad, improves the stability of the moving scraper by using the cooperation of the limiting slider and the limiting groove, and improves the stability of the opening and closing insert by using a stabilizing rod. In summary, through the interaction of the above-mentioned multiple functions, the magnetic fluxing and demagnetizing functions facilitate the cleaning of the metal on the surface of the cylindrical magnetic railing, improving work efficiency. The use of electromagnetism eliminates the problem of permanent magnet demagnetization. The magnetic force and screening effect can be controlled by the current, improving service life and screening effect. It also facilitates the installation, disassembly and maintenance of the cylindrical magnetic railing, while improving the separation and unloading effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the present invention from another angle.

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention.

[0018] Figure 4 This is a schematic diagram of the connection structure between the material hopper and the support frame of the present invention.

[0019] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 6 This is a schematic diagram of the opening and closing mechanism of the present invention.

[0021] Figure 7 This is a schematic diagram of the scraping mechanism of the present invention.

[0022] Figure 8 This is a schematic diagram of the cross-sectional structure of the cylindrical magnetic railing of the present invention.

[0023] Figure 9 This is a schematic diagram of the installation mechanism of the present invention.

[0024] The attached diagram is labeled as follows: 1. Support frame; 2. Feed hopper; 3. Support frame; 4. Feed baffle; 5. Diverter plate; 6. Cylindrical magnetic railing; 7. Perforated plate; 8. Guide plate; 9. Mounting plate; 10. Positioning rod; 11. Connecting slot; 12. Wiring housing; 13. Connecting cover; 14. Connecting rod; 15. First limiting plate; 16. Pull rod; 17. Pull ring; 18. Spring; 19. Fixing plate; 20. Control box; 21. Opening and closing insert plate; 22. Second limiting plate; 23. First threaded rod; 24. First motor; 25. Stabilizing rod; 26. Moving scraper; 27. Second threaded rod; 28. Second motor; 29. ​​Limiting slider; 30. Metal rod; 31. Coil; 32. Protective sleeve; 33. Buffer pad; 34. Connector. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] As attached Figure 1-9 The electromagnetic iron-containing plastic granule screener shown includes a support frame 1. A hopper 2 is fixedly connected to the middle of the support frame 1, which facilitates the discharge of the screened granules. A support frame 3 is fixedly connected to the top of the support frame 1 to support the cylindrical magnetic rail 6. A feeding baffle 4 is provided on the top of the support frame 3 to facilitate feeding. A diversion plate 5 is fixedly connected to the bottom of the hopper 2. Two opening and closing mechanisms are provided in the middle of the diversion plate 5. A scraping mechanism is provided in the middle of the diversion plate 5. The opening and closing mechanisms facilitate the control of opening and closing the two discharge holes of the diversion plate 5, and the scraping mechanism pushes the raw material at the top of one closed discharge hole to the other discharge hole, improving the completeness of the discharge. Multiple cylindrical magnetic rails 6 are provided in the middle of the support frame 3. A connecting slot 11 is provided on one side of the support frame 3 corresponding to the position of the cylindrical magnetic rails 6, and multiple mounting mechanisms are provided on the other side. The bottom of the feeding baffle 4 is fixedly connected to the mounting plate 9, and the top of the support frame 3 is fixedly connected to multiple positioning rods 10. A perforated plate 7 is provided in the middle of the feeding baffle 4. The cylindrical magnetic rails 6 are controlled by being energized and de-energized to determine whether their surfaces have magnetic attraction, thereby facilitating the separation of metal from the passing raw material particles. The mounting mechanisms and connecting slots 11 facilitate the installation and disassembly of the cylindrical magnetic rails 6. The perforated plate 7 reduces the amount of raw material passing between the multiple cylindrical magnetic rails 6, improving the screening effect. The mounting plate 9 and positioning rods 10 facilitate the installation and disassembly of the feeding baffle 4.

[0027] As attached Figure 1-5 As shown, a guide plate 8 is fixedly connected to one side of the opening of the feeding baffle 4. The positioning rod 10 passes through the middle of the mounting plate 9 and is fitted with a nut. A wiring shell 12 is provided in the middle of the support frame 3. The guide plate 8 facilitates the feeding of raw materials into the middle of the feeding baffle 4, and the wiring shell 12 facilitates wiring and protects the wiring. The mounting plate 9 and the positioning rod 10 cooperate to facilitate the installation and disassembly of the feeding baffle 4.

[0028] As attached Figure 3 , 4 As shown in Figures 5 and 9, the installation mechanism includes a connecting cover 13 located on the side of the cylindrical magnetic railing 6 away from the connecting slot 11. A connecting rod 14 is fixedly connected to one side of the connecting cover 13. The connecting cover 13 is adapted to one end of the cylindrical magnetic railing 6. Through the cooperation of the connecting cover 13 and the connecting slot 11, the cylindrical magnetic railing 6 can be supported and limited, which facilitates installation and use.

[0029] As attached Figure 3 , 4 As shown in Figures 5 and 9, one end of the connecting rod 14 extends to the middle of the support frame 3 and is fixedly connected to the first limiting plate 15. A pull rod 16 is fixedly connected to one side of the first limiting plate 15. The pull rod 16 has a section that penetrates the wall of the support frame 3 and is fixedly connected to a pull ring 17. A spring 18 is sleeved on one end of the pull rod 16 near the first limiting plate 15. By pushing the first limiting plate 15 through the spring 18, the connecting rod 14 can drive the connecting cover 13 to push the cylindrical magnetic railing 6, which facilitates the installation of the cylindrical magnetic railing 6. By pulling the pull ring 17, the connecting cover 13 is moved to the side away from the cylindrical magnetic railing 6, which facilitates the disassembly, maintenance and replacement of the cylindrical magnetic railing 6.

[0030] As attached Figure 3 , 4As shown in Figure 6, the opening and closing mechanism includes a fixed plate 19 fixed to one side of the support frame 1. A control box 20 is fixedly connected to one side of the fixed plate 19. Two discharge holes are opened in the middle of the diversion plate 5. An opening and closing insert plate 21 is inserted into one side of the diversion plate 5 at a position corresponding to the discharge holes. A second limiting plate 22 is fixedly connected to one end of the opening and closing insert plate 21. The top wall of the opening and closing insert plate 21 is in contact with the top wall of the diversion plate 5. By inserting the opening and closing insert plate 21 into the middle of the discharge hole in the middle of the diversion plate 5, the discharge hole can be blocked. By pulling the opening and closing insert plate 21 out from the middle of the discharge hole, the function of opening and discharging can be realized.

[0031] As attached Figure 3 , 4 As shown in Figure 6, a first threaded rod 23 and a stabilizing rod 25 are inserted into the middle of the second limiting plate 22. One end of the first threaded rod 23 passes through the fixing plate 19 and extends into the control box 20, where a first motor 24 is fixedly connected. The two ends of the stabilizing rod 25 are fixedly connected to the walls of the diverter plate 5 and the fixing plate 19, respectively. By starting the first motor 24 to control the rotation of the first threaded rod 23, the second limiting plate 22 can be controlled to move the opening and closing insert plate 21. The stabilizing rod 25 can improve the stability of the movement of the second limiting plate 22, thereby improving the stability of the movement of the opening and closing insert plate 21.

[0032] As attached Figure 3 , 7 As shown, the scraping mechanism includes a movable scraper 26 disposed on the top of the diverter plate 5. Limiting sliders 29 are symmetrically fixedly connected to both ends of the movable scraper 26. Limiting grooves are opened on both sides of the inner cavity of the diverter plate 5 at positions corresponding to the limiting sliders 29. The limiting sliders 29 are disposed inside the limiting grooves. By moving the movable scraper 26 horizontally inside the diverter plate 5, the granular raw materials or waste located on the top of one opening and closing insert plate 21 can be moved to the position of another discharge hole, thereby achieving the function of cleaning and scraping, improving the completeness of discharge, and improving the stability of the movement of the movable scraper 26 through the cooperation of the limiting sliders 29 and the limiting grooves.

[0033] As attached Figure 3 , 7 As shown, a second threaded rod 27 is inserted into the middle of the movable scraper 26. The second threaded rod 27 is threadedly connected to the movable scraper 26. One end of the second threaded rod 27 passes through the diverter plate 5 and is fixedly connected to the second motor 28. The top wall of the movable scraper 26 is set in a conical shape, and the bottom wall of the movable scraper 26 is in contact with the top wall of the diverter plate 5. By starting the second motor 28 to control the rotation of the second threaded rod 27, the movable scraper 26 can be moved, which is convenient for driving and use.

[0034] As attached Figure 4 , 8As shown, the cylindrical magnetic barrier 6 includes a metal rod 30 located in the middle of the support frame 3. A coil 31 is wound around the middle of the metal rod 30. A protective sleeve 32 is fitted on the outer surface of the metal rod 30. Both ends of the metal rod 30 are connected to connectors 34. By energizing and de-energizing the coil 31, a magnetic attraction force can be generated on the outer surface of the metal rod 30, thereby causing metal particles and impurities to adhere to the surface of the protective sleeve 32. The protective sleeve 32 protects the coil 31, thus achieving the screening function.

[0035] As attached Figure 4 , 8 As shown, both ends of the protective sleeve 32 are provided with buffer pads 33. One connector 34 is adapted to the connecting slot 11, and the other connector 34 is adapted to the connecting cover 13. The two connectors 34 are respectively inserted into the middle of the connecting slot 11 and the connecting cover 13. The buffer pads 33 can buffer the installation of the two ends of the cylindrical magnetic rail 6. The cooperation between the connectors 34 and the connecting slot 11 and the connecting cover 13 facilitates the connection of the wires at both ends of the cylindrical magnetic rail 6 to the supporting frame 3 and the wires in the middle, making it convenient for connection and use. It is worth noting that the connector inside the connector slot 11 is connected to the wire in the middle of the support frame 3, and the connector in the middle of the connector cover 13 is connected to the wire in the middle of the support frame 3 through the connector rod 14 and the wire in the middle of the first limiting plate 15. A controller is provided on one side of the control box 20. The controller is connected to the wire in the middle of the support frame 3 and is electrically connected to the first motor 24 and the second motor 28.

[0036] Working principle of the invention: When in use, one end connector 34 of the cylindrical magnetic rail 6 is inserted into the inside of the connecting slot 11. When installing the other end, pull the corresponding pull ring 17 and insert the end of the cylindrical magnetic rail 6 away from the connecting slot 11 into the inside of the connecting cover 13. Release the pull ring 17, and the cylindrical magnetic rail 6 can be installed by the squeezing of the connecting cover 13. Then place the feeding baffle 4 on top of the support frame 3, and make the positioning rod 10 pass through the mounting plate 9 and put on the nut to complete the installation of the feeding baffle 4. Then install the support frame 1 in the preset position, so that one of the discharge holes at the bottom of the diversion plate 5 corresponds to the feed inlet of the bottom equipment through the pipe, and the other discharge hole is connected to the waste cylinder through the pipe. When using raw material screening, the first motor 24 corresponding to the waste cylinder is started to control the opening and closing of the insert plate 21 to block the discharge hole corresponding to the waste cylinder, open the other discharge hole, and start the second motor 28 to control the moving scraper 26 to move to the side of the discharge hole that is fixed inside the diversion plate 5. The controller on one side of the control box 20 energizes the coil 31, which generates a magnetic attraction on the surface of the cylindrical magnetic rail 6. The raw material is guided into the feeding baffle 4 by the guide plate 8. It is first dispersed by the perforated plate 7 and the feeding amount is slowed down. The raw material passes between multiple cylindrical magnetic rails 6, and the metal particles in the raw material are adsorbed on the surface of the cylindrical magnetic rail 6. After the plastic granules are screened, they enter the feed inlet of the equipment through a feeding hole at the bottom. Then, the second motor 28 is started to control the moving scraper 26 to move the granular raw material on the top of an opening and closing insert 21 toward the open feeding hole, thereby improving the completeness of feeding. Then close the discharge hole corresponding to the equipment feed hole and open the discharge hole corresponding to the waste cylinder. By de-energizing the coil 31, the metal adsorbed on the surface of the protective sleeve 32 can be discharged into the waste cylinder. The second motor 28 is started to move the metal waste on the top of the opening and closing plate 21 toward the opened discharge hole, thereby improving the completeness of the discharge.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electromagnetic iron-containing plastic particle screener, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the middle of the material hopper (2), the support frame (1) is fixedly connected to the top of the support frame (1), the top of the support frame (3) is provided with a feeding baffle (4), the bottom of the material hopper (2) is fixedly connected with a diversion plate (5), the middle of the diversion plate (5) is provided with two opening and closing mechanisms, and the middle of the diversion plate (5) is provided with a scraping mechanism; The support frame (3) is provided with multiple cylindrical magnetic rails (6) in the middle. A connection slot (11) is provided on one side of the support frame (3) at a position corresponding to the cylindrical magnetic rails (6), and multiple installation mechanisms are provided on the other side. An installation plate (9) is fixedly connected to the bottom of the feeding baffle (4). Multiple positioning rods (10) are fixedly connected to the top of the support frame (3). A perforated plate (7) is provided in the middle of the feeding baffle (4). A guide plate (8) is fixedly connected to the opening side of the feeding baffle (4), the positioning rod (10) passes through the middle of the mounting plate (9) and is fitted with a nut, and a wiring shell (12) is provided in the middle of the support frame (3). The installation mechanism includes a connecting cover (13) disposed on the side of the cylindrical magnetic rail (6) away from the connecting slot (11), and a connecting rod (14) is fixedly connected to one side of the connecting cover (13). The connecting cover (13) is adapted to one end of the cylindrical magnetic rail (6). One end of the connecting rod (14) extends to the middle of the support frame (3) and is fixedly connected to the first limiting plate (15). A pull rod (16) is fixedly connected to one side of the first limiting plate (15). The pull rod (16) has a section that penetrates the wall of the support frame (3) and is fixedly connected to a pull ring (17). A spring (18) is sleeved on one end of the pull rod (16) near the first limiting plate (15). The cylindrical magnetic railing (6) includes a metal rod (30) located in the middle of the support frame (3), a coil (31) is wound around the middle of the metal rod (30), a protective sleeve (32) is fitted on the outer surface of the metal rod (30), and connectors (34) are connected to both ends of the metal rod (30). Both ends of the protective sleeve (32) are provided with buffer pads (33), one of the connectors (34) is adapted to the connecting slot (11), and the other connector (34) is adapted to the connecting cover (13). The two connectors (34) are respectively inserted into the middle of the connecting slot (11) and the connecting cover (13).

2. The electromagnetic iron-containing plastic particle screener according to claim 1, characterized in that: The opening and closing mechanism includes a fixed plate (19) fixed on one side of the support frame (1), a control box (20) is fixedly connected to one side of the fixed plate (19), two discharge holes are opened in the middle of the diversion plate (5), an opening and closing insert plate (21) is inserted on one side of the diversion plate (5) at a position corresponding to the discharge hole, a second limiting plate (22) is fixedly connected to one end of the opening and closing insert plate (21), and the top wall of the opening and closing insert plate (21) is in contact with the top wall of the diversion plate (5).

3. The electromagnetic iron-containing plastic particle screener according to claim 2, characterized in that: The second limiting plate (22) is provided with a first threaded rod (23) and a stabilizing rod (25) inserted in the middle. One end of the first threaded rod (23) passes through the fixing plate (19) and extends into the control box (20) where a first motor (24) is fixedly connected. The two ends of the stabilizing rod (25) are fixedly connected to the walls of the diverter plate (5) and the fixing plate (19) respectively.

4. The electromagnetic iron-containing plastic particle screener according to claim 1, characterized in that: The scraping mechanism includes a movable scraper (26) set on the top of the diverter plate (5). The two ends of the movable scraper (26) are symmetrically fixedly connected to limit sliders (29). Limit grooves are opened on both sides of the inner cavity of the diverter plate (5) at positions corresponding to the limit sliders (29). The limit sliders (29) are set inside the limit grooves.

5. The electromagnetic iron-containing plastic particle screener according to claim 4, characterized in that: The movable scraper (26) has a second threaded rod (27) inserted in the middle. The second threaded rod (27) is threadedly connected to the movable scraper (26). One end of the second threaded rod (27) passes through the diverter plate (5) and is fixedly connected to a second motor (28). The top wall of the movable scraper (26) is set in a conical shape. The bottom wall of the movable scraper (26) is in contact with the top wall of the diverter plate (5).

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