Iron removal conveyor for producing pig feed

Abstract

The utility model relates to the field of pig feed raw material conveying and impurity removal, in particular to an iron removal conveyor for producing pig feed, which comprises a rack, a conveying belt rotatably arranged on the rack and a motor for driving the conveying belt to rotate, and an iron removal device is arranged on the rack; the iron removal device comprises a support arranged on the rack, a telescopic cylinder arranged on the support, a supporting plate arranged at the telescopic end of the telescopic cylinder, an electromagnet arranged below the supporting plate, a spring arranged between the supporting plate and the electromagnet, and a scraping plate arranged on the side, away from the telescopic cylinder, of the electromagnet. One side of the scraper is in contact with the side face of the rack, fixing blocks are arranged on the two sides of the bottom of the scraper respectively, the fixing blocks are installed on the side face of the rack, sleeve holes are formed in the fixing blocks, bolts are movably sleeved with the sleeve holes, the bottoms of the bolts are installed on the scraper, and torsional springs are movably sleeved with the bolts. According to the iron removal conveyor for producing the pig feed, electromagnetism can be conveniently cleaned, and the cleaning burden of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pig feed raw material transportation and impurity removal, and specifically relates to an iron-removing conveyor for producing pig feed. Background Art

[0002] Low-emission environmental protection feed is the result of the integration of many technologies, which can solve problems such as mycotoxins, antibiotics, anti-nutritional factors, disease sources, and source emissions. Moreover, the most important function of low-emission environmental protection pig feed is to alleviate and improve the environmental problems caused by excessive sewage discharge in large-scale pig farms, and it has high social value. In the production process of compound feed, impurity removal and separation is a key process to ensure the purity and quality of the finished feed before the mixed feed process. Since the feed raw materials are mainly grains and their processed by-products, etc., these feed raw materials may be mixed with sundries such as stones, mud blocks, sack pieces, rope ends, iron slag, etc. If these sundries are not removed, it will not only reduce the quality of the feed, but may also have a negative impact on the health of animals, and at the same time will interfere with the normal use of production equipment, and even damage the production equipment, thus affecting the development of the feed production work.

[0003] For the impurity removal and separation of feed raw materials, iron removal is a crucial step in impurity removal. The main purpose of iron removal is to remove magnetic impurities such as metallic iron, iron oxide, and iron-containing minerals in the feed raw materials. Through iron removal treatment, not only can the quality of the feed be improved, but also the safety of the feed during use can be ensured, thus protecting animal health. Moreover, it also helps to protect production equipment and reduce equipment wear. The existing iron removal methods are washing method, hydrocyclone method, pickling method, magnetic separation method, etc. Among them, the electromagnetic separation method is adopted by most feed productions due to its characteristics of high efficiency, low cost, simple iron discard, and low damage to feed raw materials. The principle of the magnetic separation method is based on the magnetic properties of magnetic impurities in the feed principle, so that the magnetic impurities are attracted by magnetic force in the magnetic field and the iron removal separation method is realized. Based on this, when using the magnetic method to magnetically separate the feed, by installing an electromagnet above the conveying path of the feed raw materials, magnetic attraction is applied to the magnetic impurities during the conveying process by the electromagnet, so that these magnetic impurities are adsorbed onto the electromagnet, thus completing the iron removal separation operation.

[0004] However, in order to prevent the electromagnet from attracting too many magnetic impurities, the electromagnet needs to be cleaned regularly. During the process of cleaning the magnetic impurities, in order to prevent the magnetic impurities from falling into the conveying path of the feed raw materials, the electromagnet needs to be removed from above the conveying path of the feed raw materials, and then the power supply of the electromagnet is cut off to demagnetize the electromagnet, so that the magnetic impurities fall from the bottom surface of the electromagnet to facilitate the cleaning of the electromagnet. However, after the electromagnet is powered off, the magnetic field of the electromagnet will not disappear immediately, but will gradually weaken. And after the magnetic impurities are adsorbed on the electromagnet for a long time, the magnetic impurities have the characteristic of adsorbing the magnetic field. This means that after the electromagnet is powered off, some of the magnetic impurities will be adsorbed on the electromagnet, thus affecting the cleaning effect of the electromagnet. In order to improve the cleaning effect of the electromagnet, after the electromagnet is powered off, the worker holds tools such as a scraper to clean the electromagnet again. However, during the cleaning process, since the magnetic impurities are adsorbed on the bottom surface of the electromagnet, the metal impurities are easily dropped onto the worker's body along with the worker's operation, making the worker feel uncomfortable or even scratching the worker. In addition, the efficiency of the worker cleaning the electromagnet is slow. Relying solely on the worker to clean the electromagnet easily affects the iron removal production effect, thereby reducing the production efficiency of the feed. Therefore, it is necessary to consider improving the cleaning method of the electromagnet to reduce the burden of the worker cleaning, so as to improve the iron removal efficiency and facilitate the popularization and application. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the utility model provides an iron removal conveyor for producing pig feed, which is convenient for cleaning the electromagnet and reduces the cleaning burden of workers, so as to overcome the defects in the prior art.

[0006] The technical solution adopted by the utility model is as follows: an iron removal conveyor for producing pig feed, which includes a frame, a conveyor belt rotatably arranged on the frame, and a motor for driving the conveyor belt to rotate. An iron removal device is arranged on the frame; the iron removal device includes a bracket arranged on the frame, a telescopic cylinder arranged on the bracket, a support plate arranged on the telescopic end of the telescopic cylinder, an electromagnet arranged below the support plate, a spring arranged between the support plate and the electromagnet, and a scraper arranged on the side of the electromagnet away from the telescopic cylinder; the support plate is connected to the electromagnet through the spring. The electromagnet is located above the conveyor belt, and the telescopic direction of the telescopic cylinder is perpendicular to the conveying direction of the conveyor belt; one side of the scraper is in contact with the side surface of the frame. Fixed blocks are respectively arranged on both sides of the bottom of the scraper. The fixed blocks are installed on the side surface of the frame. Sleeve holes are formed in the fixed blocks. Bolts are movably sleeved in the sleeve holes. The bottoms of the bolts are installed on the scraper. Torsion springs are movably sleeved on the bolts. Both ends of the torsion springs are respectively installed on the nuts of the bolts and the fixed blocks.

[0007] Preferably, a fixed shaft is provided on the electromagnet. The bottom end of the fixed shaft is installed on the top surface of the electromagnet, and a disc is provided at the top end of the fixed shaft. The spring is movably sleeved on the fixed shaft, and both sides of the spring are respectively in contact with the disc and the top surface of the support plate. A perforation is provided on the support plate, and the perforation is movably sleeved on the fixed shaft.

[0008] Preferably, a limiting rod is provided on the bracket. The central axis of the limiting rod is parallel to the telescopic direction of the telescopic cylinder. A plurality of limiting tubes are movably sleeved on the limiting rod. The inner cavity diameter of the limiting tube coincides with the diameter of the limiting rod. One side of the plurality of limiting tubes is respectively installed on the top surface of the support plate. One end of the limiting rod is installed on the bracket, a fixing frame is provided on the side of the limiting rod away from the bracket, the fixing frame is installed on the machine frame, and the other end of the limiting rod is installed on the fixing frame.

[0009] Preferably, baffle plates are respectively provided on both sides of the conveyor belt. The baffle plates are installed on the machine frame and are in contact with the side surface of the conveyor belt. A through groove is provided on the baffle plate, and the through groove is movably sleeved on the electromagnet.

[0010] Preferably, a plurality of pushing plates are provided on the outer side of the conveyor belt. The plurality of pushing plates are equidistantly installed on the conveyor belt. The bottom end of the pushing plate is in contact with the conveyor belt, and the side part of the pushing plate is in contact with the baffle plate. The distance between the electromagnet and the conveyor belt is not less than the height of the pushing plate.

[0011] Preferably, a double-shaft output reducer is provided on one side of the motor. The double-shaft output reducer and the motor are both installed on the machine frame. The driving end of the motor is connected to the input shaft of the double-shaft output reducer. The first output shaft of the double-shaft output reducer is tensioned on one side of the conveyor belt, and a primary crushing device is provided on the second output shaft of the double-shaft output reducer; the primary crushing device includes two mutually meshing first gears, a feed hopper provided on one side of the first gear, two crushing shafts rotatably provided on the feed hopper, hob cutters fixedly sleeved on both crushing shafts, the discharge end of the feed hopper is located above the conveyor belt, the hob cutters are located in the feed hopper, and the two crushing shafts respectively penetrate through one side of the feed hopper and are fixedly sleeved in the two first gears, and one of the crushing shafts is connected to the second output shaft of the double-shaft output reducer.

[0012] Preferably, a plurality of fixing rods are horizontally provided in the feed hopper. The plurality of fixing rods are uniformly installed in the feed hopper, and the fixing rods are located above the hob cutters.

[0013] Preferably, a scraping strip is provided at the top of the scraper. The scraping strip is made of an elastic material and is in a strip structure. The height of the top end of the scraping strip is not lower than the height of the bottom end of the electromagnet.

[0014] The beneficial effects of the present utility model are as follows: Firstly, through the motor and conveyor belt provided in the present utility model, the feed raw materials can be driven for conveying. Through the telescopic cylinder and support plate provided, the electromagnet can be conveniently removed from above the conveyor belt, so that the operation of removing magnetic impurities such as iron slag by the electromagnet is located outside the conveyor belt, preventing the magnetic impurities falling from the electromagnet from falling onto the conveyor belt. Moreover, in the present utility model, the scraper is hinged to the fixed block through the bolt provided, the bolt is torsionally extruded by the torsion spring, and the rotation of the scraper is restricted by the frame, so that the scraper adheres to the side of the frame. Therefore, during the process of controlling the electromagnet to move out of the conveyor belt, the telescopic cylinder continuously extends, driving the scraper away from the frame. Due to the small extrusion effect of the torsion spring, it is difficult for the scraper to scrape the bottom end of the electromagnet; on the contrary, during the process of controlling the electromagnet to move back to the conveyor belt, the telescopic cylinder continuously shortens, and the electromagnet pushes the scraper against the frame. Under the action of the spring extrusion, the top of the scraper and the bottom end of the electromagnet are mutually extruded, so that the scraper scrapes the end face of the bottom end of the electromagnet, thereby reducing the cleaning burden of workers, improving the cleaning effect of the electromagnet, and preventing magnetic impurities such as iron slag adsorbed by the electromagnet from falling onto the conveyor belt.

[0015] Secondly, through the fixed shaft and disc provided in the present utility model, the movement of the electromagnet is restricted to only up and down, which is convenient for pressing the electromagnet onto the scraper, preventing the electromagnet from shaking left and right, and thus improving the stability of scraping the electromagnet. Moreover, in the present utility model, the support plate is supported by the limiting rod provided, and the limiting rod is supported by the fixed frame and bracket provided to strengthen the supporting effect of the support plate. Then, the limiting tube is sleeved on the limiting rod to restrict the moving direction of the support plate, reducing the burden on the telescopic cylinder to support the support plate, and thus improving the stability of the movement of the support plate and the electromagnet.

[0016] Thirdly, through the baffle plate provided in the present utility model, the feed raw materials being conveyed are prevented from sliding out from both sides of the conveyor belt. Through the pusher plate provided, it is convenient to push the feed raw materials on the conveyor belt for conveying. Moreover, in the present utility model, the double-shaft output reducer is provided to facilitate the operation of the motor driving the conveyor belt and to drive one of the crushing shafts to rotate conveniently. Through two mutually engaged first gears, the other crushing shaft is driven to rotate, thereby driving the two hob cutters to rotate to perform primary crushing on the feed raw materials put into the feed hopper. Through the plurality of fixed rods provided, the too large feed raw materials are prevented from entering the crushing area of the two hob cutters.

[0017] In addition, through the scraping strip provided in the present utility model, the bottom surface of the electromagnet is scraped to improve the cleanliness of scraping the electromagnet. Description of the Drawings

[0018] Figure 1 It is the first three-dimensional schematic diagram of the present utility model.

[0019] Figure 2 is Figure 1 The enlarged schematic view of part A in

[0020] Figure 3 is Figure 1 The enlarged schematic view of part B in

[0021] Figure 4 The second three-dimensional schematic view of the present utility model.

[0022] Figure 5 is Figure 4 The enlarged schematic view of part C in

[0023] Figure 6 The exploded assembly view of the scraper and the fixed block in the present utility model.

[0024] Figure 7 The exploded assembly view of the bracket, the telescopic cylinder and the support plate in the present utility model.

[0025] Figure 8 The exploded assembly view of the support plate and the electromagnet in the present utility model. Detailed implementation manners

[0026] Such as Figures 1 to 8As shown in the figure, an iron-removing conveyor for producing pig feed includes a frame 1, a conveyor belt 2 rotatably arranged on the frame 1, and a motor 3 for driving the conveyor belt 2 to rotate. An iron-removing device is arranged on the frame 1. The iron-removing device includes a bracket 4 arranged on the frame 1, a telescopic cylinder 5 arranged on the bracket 4, a support plate 6 arranged on the telescopic end of the telescopic cylinder 5, an electromagnet 7 arranged below the support plate 6, a spring 8 arranged between the support plate 6 and the electromagnet 7, and a scraper 9 arranged on the side of the electromagnet 7 away from the telescopic cylinder 5. The support plate 6 is connected to the electromagnet 7 through the spring 8. The electromagnet 7 is located above the conveyor belt 2, and the magnetic attraction end of the electromagnet 7 is located at the bottom end of the electromagnet 7 to facilitate sucking out magnetic impurities such as iron slag conveyed on the conveyor belt 2. The telescopic direction of the telescopic cylinder 5 is perpendicular to the conveying direction of the conveyor belt 2, and the telescopic end of the telescopic cylinder 5 is installed on one side of the support plate 6. By controlling the telescopic cylinder 5 to expand and contract, the movement of the electromagnet 7 above the conveyor belt 2 is controlled to facilitate removing the electromagnet 7 from above the conveyor belt 2, thereby facilitating removing the magnetic impurities such as iron slag adsorbed on the electromagnet 7. One side of the scraper 9 is in contact with the side surface of the frame 1. Fixed blocks 10 are respectively arranged on both sides of the bottom of the scraper 9. The fixed blocks 10 are installed on the side surface of the frame 1. A sleeve hole 11 is formed in the fixed block 10. A bolt 12 is movably sleeved in the sleeve hole 11. The bottom of the bolt is installed on the scraper 9. A torsion spring 13 is movably sleeved on the bolt 12. Both ends of the torsion spring 13 are respectively installed on the nut of the bolt 12 and the fixed block 10. The scraper 9 is hinged to the fixed block 10 through the bolt 12. With the twisting action of the torsion spring 13, one side of the scraper 9 is driven to adhere to the side surface of the frame 1 to constrain the rotation of the scraper 9 by the frame 1. It should be noted that the edges on both sides of the electromagnet 7 adopt arc structures. The top of the circular ring structure is located above the scraper 8, and the top of the scraper 8 is in contact with the bottom of the electromagnet 7. Therefore, during the process of the electromagnet 7 moving out of the conveyor belt 2, the electromagnet 7 drives the scraper 9 in a direction away from the frame 1. Due to the small extrusion effect of the torsion spring 13, it is difficult for the scraper 9 to scrape the bottom end of the electromagnet 7. On the contrary, during the process of the electromagnet 7 moving back to the conveyor belt 2, the electromagnet 7 pushes the scraper 9 against the frame 1. Since the edge of the electromagnet 7 is an arc structure and under the extrusion of the spring 8, the electromagnet 7 is driven to move upward, so that the top of the scraper 9 and the bottom end of the electromagnet 7 are mutually extruded. As the telescopic cylinder 5 shortens, the scraper 9 is used to scrape the end face of the bottom end of the electromagnet 7 to improve the cleaning effect of the electromagnet 7 and prevent magnetic impurities such as iron slag adsorbed on the bottom end of the electromagnet 7 from falling on the conveyor belt 2.

[0027] Please participate again Figure 1 、 2, 4, and 8. In this embodiment, a fixed shaft 14 is provided on the electromagnet 7. The bottom end of the fixed shaft 14 is installed on the top surface of the electromagnet 7, and a disc 15 is provided at the top end of the fixed shaft 14. The bottom end of the disc 15 is installed on the top end of the fixed shaft 14. The spring 8 is movably sleeved on the fixed shaft 14, and both sides of the spring 8 are in contact with the top surfaces of the disc 15 and the support plate 6 respectively. A through hole 16 is provided on the support plate 6, and the through hole 16 is movably sleeved on the fixed shaft 14. Both sides of the spring 8 are in contact with the top surfaces of the disc 15 and the support plate 6 respectively, thereby restricting the electromagnet 7 to move only up and down, so as to facilitate pressing the electromagnet 7 on the scraper 9, and further improving the stability of scraping the electromagnet 7.

[0028] Specifically, a limiting rod 17 is provided on the bracket 4. The central axis of the limiting rod 17 is parallel to the telescopic direction of the telescopic cylinder 5. A number of limiting tubes 18 are movably sleeved on the limiting rod 17. The inner cavity diameter of the limiting tube 18 is in line with the diameter of the limiting rod 17. One sides of the number of limiting tubes 18 are respectively installed on the top surface of the support plate 6. One end of the limiting rod 17 is installed on the bracket 4. A fixed frame 19 is provided on the side of the limiting rod 17 away from the bracket 4. The fixed frame 19 is installed on the frame 1, and the other end of the limiting rod 17 is installed on the fixed frame 19. The support plate 6 is supported by the provided fixed frame 19, limiting rod 17, and limiting tubes 18, and the support plate 6 is restricted to move only along the central axis of the limiting rod 17, so as to reduce the burden on the telescopic cylinder 5 to support the support plate 6.

[0029] In this embodiment, baffle plates 20 are respectively provided on both sides of the conveyor belt 2. The baffle plates 20 are installed on the frame 1 and are in contact with the side surfaces of the conveyor belt 2, thereby preventing the conveyed feed raw materials from sliding out from both sides of the conveyor belt 2. A through slot 21 is provided on the baffle plate 20, and the through slot 21 is movably sleeved on the electromagnet 7, thereby avoiding the baffle plate 20 affecting the movement of the electromagnet 7.

[0030] Specifically, a number of pushing plates 22 are provided on the outer side of the conveyor belt 2. The number of pushing plates 22 are equidistantly installed on the conveyor belt 2. The bottom end of the pushing plate 22 is in contact with the conveyor belt 2, and the side part of the pushing plate 22 is in contact with the baffle plate 20. The distance between the electromagnet 7 and the conveyor belt 2 is not less than the height of the pushing plate 22, so as to push the feed raw materials on the conveyor belt 2 for conveying.

[0031] Please participate again Figures 1 to 5, a double-shaft output speed reducer 23 is provided on one side of the motor 3. Both the double-shaft output speed reducer 23 and the motor 3 are installed on the frame 1. The driving end of the motor 3 is connected to the input shaft of the double-shaft output speed reducer 23. The first output shaft of the double-shaft output speed reducer 23 is tensioned on one side of the conveyor belt 2, so as to facilitate driving the conveyor belt 2 to operate. A roller shaft is provided on the other side of the conveyor belt 2, and the other side of the conveyor belt 2 is tensioned on the roller shaft. The roller shaft is rotatably installed on the frame 1. The second output shaft of the double-shaft output speed reducer 23 is provided with a primary crushing device; the primary crushing device includes two meshing first gears 24, a feed hopper 25 provided on one side of the first gear 24, two crushing shafts 26 rotatably provided on the feed hopper 25, and hob cutters 27 fixedly sleeved on both crushing shafts 26. The discharge end of the feed hopper (25) is located above the conveyor belt (2), and the hob cutters 27 are located in the feed hopper 25. The two crushing shafts 26 penetrate through one side of the feed hopper 25 and are respectively fixedly sleeved in the two first gears 24. One of the crushing shafts 26 is connected to the second output shaft of the double-shaft output speed reducer 23. By driving one of the crushing shafts 26 to operate through the second output shaft of the double-shaft output speed reducer 23, and then driving the other crushing shaft 26 to operate through the two meshing first gears 24, and further driving the two hob cutters 27 to operate, so as to facilitate the primary crushing of the feed raw materials put into the feed hopper 25. A transmission mechanism is provided between the second output shaft of the double-shaft output speed reducer 23 and one of the crushing shafts 26; the transmission mechanism includes two meshing second gears and a transmission shaft rotatably provided on the frame 1. The two second gears are respectively fixedly sleeved on the second output shaft of the double-shaft output speed reducer 23 and the transmission shaft. One side of the transmission shaft is connected to one of the crushing shafts 26 through a coupling, so as to facilitate transmitting the kinetic energy output by the double-shaft output speed reducer 23 to one of the crushing shafts 26.

[0032] Specifically, a plurality of fixing rods 28 are horizontally arranged in the feed hopper 25. The plurality of fixing rods 28 are evenly installed in the feed hopper 25. The fixing rods 28 are located above the hob cutters 27, so as to prevent too large feed raw materials from entering the crushing area of the two hob cutters 27.

[0033] In this embodiment, a scraping strip 29 is provided on the top of the scraping plate 8. The scraping strip 29 is made of an elastic material and is in a strip structure. The scraping strip 8 is used to scrape the bottom surface of the electromagnet 7 to improve the cleaning degree of the scraping of the electromagnet 7; the height of the top end of the scraping strip 29 is not lower than the height of the bottom end of the electromagnet 7. The scraping strip 29 is deformed by the extrusion of the scraping plate 8 and the electromagnet 7, so as to facilitate using the scraping strip 29 to scrape the end face of the bottom end of the electromagnet 7.

[0034] The usage method of this product is as follows: As Figures 1 to 8As shown in the figure, first, control the telescopic cylinder 5 to shorten, control the electromagnet 7 to move above the conveyor belt 2, then start the motor 3, drive the conveyor belt 2 and the two hob cutters 27 to operate through the double-shaft output reducer 23, and observe whether the conveyor belt 2 and the hob cutters 27 are operating normally. If the operation is abnormal, the motor 3 should be turned off in time, and the product should be maintained and repaired. After the no-load operation of this product is in a normal state, first start the electromagnet 7 to generate a magnetic field around the electromagnet 7, and then feed the feed raw materials into the feed hopper 25. Use the two hob cutters 27 to initially crush the feed raw materials, so that the initially crushed feed raw materials fall on the conveyor belt 2, and then use the conveyor belt 2 to convey the feed raw materials. Then, when the feed raw materials enter the magnetic field generated by the electromagnet 7, the magnetic impurities in the feed raw materials will be attracted by the magnetic force, so that the magnetic impurities are adsorbed on the bottom end of the electromagnet 7, while the feed raw materials are not attracted by the magnetic force, so that the feed raw materials continue to be conveyed along with the conveyor belt 2, thus completing the iron removal operation of the magnetic impurities.

[0035] It should be noted that the bottom end of the electromagnet 7 needs to be regularly cleaned of the adsorbed magnetic impurities. The method for cleaning the bottom end of the electromagnet 7 is as follows: First, turn off the motor 3, stop the operation of the conveyor belt 2 and the hob cutters 27, and control the telescopic cylinder 5 to extend, so that the electromagnet 7 moves out from above the conveyor belt 2; during the process of the electromagnet 7 moving out of the conveyor belt 2, due to the scraping strip 29 being pressed against the bottom end of the electromagnet 7 under the action of the torsion spring 13, and since the electromagnet 7 is in an operating state, the squeezing action of the torsion spring 13 is insufficient to scrape off the magnetic impurities adsorbed on the electromagnet 7. Then, first turn off the electromagnet 7. After most of the magnetic impurities adsorbed on the electromagnet 7 have fallen off, then control the telescopic cylinder 5 to shorten. The electromagnet 7 pushes the scraping plate 9 against the machine frame 1, and under the squeezing action of the spring 8, the scraping strip 29 and the bottom end of the electromagnet 7 are mutually squeezed, so as to use the scraping strip 29 to scrape the end face of the bottom end of the electromagnet 7, thereby improving the cleaning effect of the electromagnet. Finally, after the electromagnet 7 moves above the conveyor belt 2, first start the motor 3. After determining that the no-load operation is in a normal state, then start the electromagnet 7, so as to facilitate feeding the feed raw materials again for initial crushing, conveying and iron removal operations.

[0036] In this embodiment, the motor 3 and the conveyor belt 2 are provided to drive the conveyance of feed raw materials. The telescopic cylinder 5 and the support plate 6 are provided to facilitate the removal of the electromagnet 7 from above the conveyor belt 2, so that the operation of removing magnetic impurities such as iron slag by the electromagnet 7 is located outside the conveyor belt 2, preventing the magnetic impurities falling from the electromagnet 7 from falling onto the conveyor belt 2. Moreover, in this embodiment, the bolt 12 is used to hinge the scraper 9 to the fixed block 10, and the torsion spring 13 is used to twist and press the bolt 12, and the rotation of the scraper 9 is restricted by the frame 1, so that the scraper 9 adheres to the side of the frame 1. Therefore, during the process of controlling the removal of the electromagnet 7 from the conveyor belt 2, the telescopic cylinder 5 continuously extends, driving the scraper 9 away from the frame 1. Due to the small extrusion effect of the torsion spring 13, it is difficult for the scraper 9 to scrape the bottom end of the electromagnet 7; on the contrary, during the process of controlling the electromagnet 7 to move back to the conveyor belt 2, the telescopic cylinder 5 continuously shortens, and the electromagnet 7 pushes the scraper 9 against the frame 1. Under the action of the spring 8 extrusion, the top of the scraping strip 29 is mutually extruded with the bottom end of the electromagnet 7, so that the scraper 9 is used to scrape the end face of the bottom end of the electromagnet 7, thereby reducing the cleaning burden of workers, improving the cleaning effect of the electromagnet 7, and preventing the magnetic impurities such as iron slag adsorbed by the electromagnet 7 from falling onto the conveyor belt 2.

[0037] The above-described embodiments are only the preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent should be included in the scope of the patent application of the present invention.

Claims

1. An iron removal conveyor for producing pig feed, comprising a frame (1), a conveyor belt (2) rotatably arranged on the frame (1), and a motor (3) for driving the conveyor belt (2) to rotate, characterized in that: The frame (1) is provided with an iron removal device; The iron removal device comprises a bracket (4) arranged on a frame (1), a telescopic cylinder (5) arranged on the bracket (4), a support plate (6) arranged on the telescopic end of the telescopic cylinder (5), an electromagnet (7) arranged below the support plate (6), a spring (8) arranged between the support plate (6) and the electromagnet (7), and a scraper (9) arranged on a side of the electromagnet (7) away from the telescopic cylinder (5); the support plate (6) is connected to the electromagnet (7) via the spring (8), the electromagnet (7) is located above the conveyor belt (2), and the telescopic direction of the telescopic cylinder (5) is perpendicular to the conveying direction of the conveyor belt (2); One side of the scraper (9) contacts the side of the frame (1), and fixing blocks (10) are respectively arranged on both sides of the bottom of the scraper (9). The fixing blocks (10) are mounted on the side of the frame (1), and a sleeve hole (11) is opened in the fixing block (10). A bolt (12) is movably mounted in the sleeve hole (11). The bottom of the bolt (12) is mounted on the scraper (9), and a torsion spring (13) is movably mounted on the bolt (12). The two ends of the torsion spring (13) are respectively mounted on the nut of the bolt (12) and the fixing block (10).

2. The iron removal conveyor for producing pig feed according to claim 1, characterized in that: The electromagnet (7) is provided with a fixed shaft (14), the bottom end of the fixed shaft (14) is mounted on the top surface of the electromagnet (7), a disc (15) is provided on the top of the fixed shaft (14), the spring (8) is movably mounted on the fixed shaft (14), the two sides of the spring (8) are respectively in contact with the disc (15) and the top surface of the support plate (6), the support plate (6) is provided with a through hole (16), and the through hole (16) is movably mounted on the fixed shaft (14).

3. The iron removal conveyor for producing pig feed according to claim 1, characterized in that: The support (4) is provided with a limit rod (17), the central axis of the limit rod (17) is parallel to the telescopic direction of the telescopic cylinder (5), a plurality of limit tubes (18) are movably sleeved on the limit rod (17), the inner diameter of the limit tube (18) matches the diameter of the limit rod (17), one side of the plurality of limit tubes (18) is respectively mounted on the top surface of the support plate (6), one end of the limit rod (17) is mounted on the support (4), a fixing frame (19) is provided on the side of the limit rod (17) away from the support (4), the fixing frame (19) is mounted on the frame (1), and the other end of the limit rod (17) is mounted on the fixing frame (19).

4. The iron removal conveyor for producing pig feed according to claim 1, characterized in that: The conveyor belt (2) is provided with a material baffle plate (20) on both sides. The material baffle plate (20) is mounted on the frame (1). The material baffle plate (20) is in contact with the side of the conveyor belt (2). The material baffle plate (20) is provided with a through groove (21), and the through groove (21) is movably mounted on the electromagnet (7).

5. The iron removal conveyor for producing pig feed according to claim 4, characterized in that: A plurality of push plates (22) are arranged on the outer side of the conveyor belt (2), and the plurality of push plates (22) are installed on the conveyor belt (2) at equal intervals. The bottom ends of the push plates (22) are in contact with the conveyor belt (2), and the sides of the push plates (22) are in contact with the baffle plate (20). The distance between the electromagnet (7) and the conveyor belt (2) is not less than the height of the push plates (22).

6. The iron removal conveyor for producing pig feed according to claim 1, characterized in that: A double-shaft output reducer (23) is provided on one side of the motor (3); the double-shaft output reducer (23) and the motor (3) are both mounted on the frame (1); a driving end of the motor (3) is connected to an input shaft of the double-shaft output reducer (23); a first output shaft of the double-shaft output reducer (23) is tensioned on one side of the conveyor belt (2); and a primary crushing device is provided on a second output shaft of the double-shaft output reducer (23); The primary crushing device comprises two first gears (24) meshing with each other, a feed hopper (25) arranged on one side of the first gear (24), two crushing shafts (26) rotatably arranged on the feed hopper (25), and rollers (27) fixedly mounted on the two crushing shafts (26); the discharge end of the feed hopper (25) is located above the conveyor belt (2), the rollers (27) are located in the feed hopper (25), and the two crushing shafts (26) are fixedly mounted in the two first gears (24) on one side passing through the feed hopper (25), and one of the crushing shafts (26) is connected to the second output shaft of the double-shaft output reducer (23).

7. The iron removal conveyor for producing pig feed according to claim 6, characterized in that: A plurality of fixing rods (28) are horizontally arranged in the feed hopper (25), and the plurality of fixing rods (28) are evenly installed in the feed hopper (25). The fixing rods (28) are located above the roller (27).

8. The iron removal conveyor for producing pig feed according to claim 1, characterized in that: A scraper strip (29) is arranged on the top of the scraper plate (9). The scraper strip (29) is made of elastic material and has a long strip structure. The height of the top end of the scraper strip (29) is not lower than the height of the bottom end of the electromagnet (7).

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