A magnetic separation and impurity removal device for producing oxygen-absorbing masterbatch

Abstract

The present application relates to a magnetic separation and impurity removal device for the production of oxygen-absorbing masterbatch, which belongs to the field of magnetic impurity removal technology. It includes an impurity removal box, in which a plurality of rotating shafts are rotatably arranged, and the two ends of the rotating shafts respectively pass through the impurity removal box, and the plurality of rotating shafts are driven together by a driving assembly, and a magnetic sleeve roller is sleeved on the rotating shaft, and the rotating shaft is slidably connected to the magnetic sleeve roller, and the magnetic sleeve roller is divided into a working section and a standby section, and a plurality of scraper assemblies are arranged on the side of the impurity removal box away from the driving assembly, and the scraper assemblies correspond to the magnetic sleeve rollers one by one, and the end of the magnetic sleeve roller away from the driving assembly is connected to an electromagnetic clutch, and the electromagnetic clutch is connected to a reciprocating screw, and the reciprocating screw is connected to a nut seat, and the nut seat is fixedly arranged. The present application has the effects of cleaning the magnetic roller without stopping the machine, efficiently cleaning impurities in the magnetic roller, and optimizing the spatial layout to improve the impurity removal effect.

Description

Technical Field

[0001] The present application relates to the technical field of magnetic impurity removal, and in particular to a magnetic impurity removal device for producing oxygen-absorbing masterbatch. Background Art

[0002] Usually, during the synthesis process of PET, oxygen-absorbing components need to be added to the molten liquid for mixing or even reaction. Although this can directly obtain PET raw materials with oxygen-absorbing ability, it limits the downstream choices for raw material diversity and product diversity. At the same time, this process can only perform simple physical blending and cannot achieve the shear mixing effect of a twin-screw extruder. The mixing uniformity and particle size of the dispersed phase will also be larger, which will ultimately affect the oxygen absorption effect and the packaging bottle molding ability.

[0003] In view of the above situation, publication number: CN114806165A discloses an oxygen absorbing masterbatch for food packaging and a preparation device and method thereof, including equipment for vacuum drying the oxygen absorbing masterbatch. The oxygen absorbing masterbatch contains two components, A and B. Component A is nylon (nylon MXD6) and PET, and component B is PET and a catalyst (cobalt salt masterbatch). After being prepared separately, they are added and mixed in proportion and then extruded as a whole to solve the above problem.

[0004] The production steps of component A and component B are:

[0005] 1. Calculate and weigh the raw materials according to the weight ratio of component A and component B in the oxygen absorbing masterbatch.

[0006] 2. After the components A and B are mixed separately, the materials of the components A and B are obtained through the processes of a twin-screw extruder, a cooling tank, an air knife, a pelletizer, and a vibrating screen;

[0007] 3. Dry component B;

[0008] 4. Add the materials of component A and component B in a ratio of 100 parts by total mass into the preparation device of oxygen absorbing masterbatch and dry them under vacuum environment.

[0009] Regarding the above-mentioned related technologies, during step 2, due to various reasons such as wear of production equipment, impurities in raw materials and pollution of the production environment, component A and component B are usually adsorbed / doped with metal impurities. To ensure the functionality and safety of oxygen-absorbing masterbatch (especially in food plastic packaging), the content of metal impurities must be strictly controlled. Therefore, after the vibrating screen separates the materials of component A and component B, it is usually necessary to perform magnetic adsorption and impurity removal. Magnetic adsorption and impurity removal is usually performed by a magnetic roller, and the metal impurities adsorbed on the magnetic roller need to be cleaned. The existing cleaning methods either require regular shutdown for cleaning, or use an external brush, and make one side of the magnetic roller extend out of the adsorption area to contact the brush to sweep away the metal impurities;

[0010] However, stopping the machine for cleaning will affect production efficiency. When using a brush for cleaning, the magnetic roller tightly absorbs metal impurities, and it is difficult for the brush to separate the metal impurities from the magnetic roller, resulting in incomplete cleaning. In addition, one side of the magnetic roller must always be kept out of the adsorption area. The spatial layout of the magnetic roller is limited, making it difficult to optimize the equipment design to improve the impurity removal effect. Summary of the invention

[0011] In order to clean the magnetic roller without stopping the machine, efficiently clean the impurities in the magnetic roller and optimize the spatial layout to improve the impurity removal effect, the present application provides a magnetic separation and impurity removal device for the production of oxygen-absorbing masterbatch.

[0012] The magnetic separation and impurity removal device for oxygen-absorbing masterbatch production provided in this application adopts the following technical solution:

[0013] A magnetic separation and impurity removal device for oxygen-absorbing masterbatch production, comprising an impurity removal box, wherein a plurality of rotating shafts are rotatably arranged in the impurity removal box, both ends of the rotating shafts respectively pass through the impurity removal box, and the plurality of rotating shafts are driven together by a driving assembly, a magnetic sleeve roller is sleeved on the rotating shaft, and the rotating shaft is slidably connected to the magnetic sleeve roller, the magnetic sleeve roller is divided into a working section and a standby section, a plurality of scraper assemblies are arranged on the side of the impurity removal box away from the driving assembly, the scraper assemblies correspond to the magnetic sleeve rollers one by one, an end of the magnetic sleeve roller away from the driving assembly is connected to an electromagnetic clutch, the electromagnetic clutch is connected to a reciprocating screw, the reciprocating screw is connected to a nut seat, and the nut seat is fixedly arranged;

[0014] During normal production, the electromagnetic clutch is disconnected, and the working section of the magnetic sleeve roller rotates in the impurity removal box;

[0015] When the working section of the magnetic roller needs to be cleaned, the electromagnetic clutch is activated, the working section of the magnetic roller extends out of the impurity removal box, and the standby section of the magnetic roller extends into the impurity removal box;

[0016] When the working section of the magnetic sleeve roller moves to the nut seat, the scraper assembly starts and fits the magnetic sleeve roller until the working section of the magnetic sleeve roller is completely extended into the impurity removal box, and the scraper assembly is away from the magnetic sleeve roller.

[0017] By adopting the above technical solution, the driving assembly drives all the rotating shafts to rotate, and the rotating shaft drives the magnetic sleeve roller to rotate. When working normally, the electromagnetic clutch is disconnected, and the working section of the magnetic sleeve roller rotates in the impurity removal box to remove metal impurities. When the working section of the magnetic sleeve roller needs to be cleaned, the electromagnetic clutch is started, and the magnetic sleeve roller drives the reciprocating screw to rotate, and the working section of the magnetic sleeve roller extends out of the impurity removal box, and the spare section of the magnetic sleeve roller extends into the impurity removal box.

[0018] When the working section of the magnetic roller is completely extended out of the impurity removal box and its end is close to the nut seat, the end of the reciprocating screw is threadedly connected to the nut seat, the scraper assembly starts and rests on the circumference of the magnetic roller, and the reciprocating screw and the magnetic roller begin to return. The working section of the magnetic roller gradually extends into the impurity removal box, and the scraper assembly scrapes off the metal impurities adsorbed on the working section of the magnetic roller, and the metal impurities on the spare section of the magnetic roller can be cleaned during daily equipment maintenance.

[0019] By setting up an electromagnetic clutch and a reciprocating screw, the working section and the standby section of the magnetic roller can be automatically switched, realizing continuous impurity removal and cleaning without stopping the machine, thereby improving production efficiency.

[0020] Since the contact between the working section of the magnetic roller and the scraper is completed during the cleaning process rather than continuous friction during impurities removal, excessive wear during the impurity removal process is avoided and the service life of the equipment is extended.

[0021] The number and layout of the magnetic rollers in the device can be adjusted according to different material or process requirements, achieving compatibility with different production lines and having strong flexibility. Whether more impurity removal areas are needed or layout optimization is required in a limited space, this design can adapt to different needs.

[0022] Optionally, a plurality of fixed platforms are provided on a side of the impurity removal box away from the driving assembly, the fixed platforms correspond to the nut seats one by one and are fixed to each other, the electromagnetic clutch is slidably connected to the fixed platforms, and the electromagnetic clutch can rotate on the fixed platforms, a first contact sensor is installed on the nut seat, and a second contact sensor is installed on one end of the fixed platform adjacent to the impurity removal box;

[0023] When the electromagnetic clutch touches the first contact sensor, the scraper assembly starts and contacts the magnetic sleeve roller. When the electromagnetic clutch touches the second contact sensor, the scraper assembly is reset and the electromagnetic clutch is powered off.

[0024] By adopting the above technical solution, when the working section of the magnetic roller is completely extended out of the impurity removal box, the electromagnetic clutch just contacts the first contact sensor, and the system automatically starts the scraper assembly to remove impurities from the magnetic roller; when the working section of the magnetic roller is reset, the electromagnetic clutch touches the second contact sensor, the scraper assembly is automatically reset, and the electromagnetic clutch is powered off. No complicated control program is required, which improves the convenience of operation.

[0025] Optionally, the scraper assembly includes two scraper plates, the magnetic sleeve roller is located between the two scraper plates, the two scraper plates are arranged opposite to each other, and a semicircular groove is formed on one side of the scraper plate facing the magnetic sleeve roller.

[0026] By adopting the above technical solution, the semicircular groove of the scraper plate fits the shape of the magnetic roller sleeve, so that the contact between the scraper plate and the magnetic roller sleeve is closer, which can effectively scrape off the metal impurities adsorbed on the surface of the magnetic roller sleeve, ensure that the impurities do not leave dead corners, and improve the cleaning effect.

[0027] Optionally, the plurality of magnetic rollers are divided into two rows and arranged in a staggered manner, and in the two rows of magnetic rollers, a space for materials to pass through is reserved between two adjacent magnetic rollers.

[0028] By adopting the above technical solution, by dividing the magnetic rollers into two rows and arranging them in a staggered manner, the material can pass through more magnetic rollers when passing through, effectively increasing the contact area between the material and the magnetic surface, thereby enhancing the impurity removal effect. The staggered arrangement further avoids the material directly passing through the gap of the magnetic roller, ensuring that each material particle can be fully affected by the magnetic roller.

[0029] Optionally, the driving assembly includes a driving motor, and the driving motor drives all the rotating shafts to rotate through a first belt transmission member.

[0030] Optionally, a top cover is provided on the top of the impurity removal box, a feeding port for materials to enter is provided on the top cover, two first material guide plates are hingedly connected in the impurity removal box, the two first material guide plates are arranged opposite to each other and inclined toward the feeding port, a first material baffle plate is connected to one end of the two first material guide plates away from the feeding port, a second material guide plate is connected to one end of the first material baffle plate away from the first material guide plate, the second material guide plate is hinged in the impurity removal box, a second material baffle plate is further provided in the impurity removal box, the second material baffle plate is connected to the second material guide plate, the second material baffle plate and the first material baffle plate are located on the same inclined surface, and a space for materials to pass through is left between the second material baffle plate and the side wall of the impurity removal box;

[0031] The hinge shafts of the first material guide plate and the second material guide plate are linked via a first gear set, and the driving assembly is connected to a reciprocating control assembly, and the reciprocating control assembly is used to drive the first material guide plate and the second material guide plate to flip back and forth;

[0032] When the first material guide plate flips upward and contacts the top cover, the second material guide plate is connected with the first material blocking plate;

[0033] When the two first material guide plates flip downward and connect with each other, the second material guide plate flips in a direction away from the top cover.

[0034] By adopting the above technical solution, the flow path of the material is flexibly controlled by the linkage flipping of the first guide plate and the second guide plate. The first guide plate is located in the middle area of ​​the impurity removal box, and the second guide plate is located between the side area of ​​the impurity removal box and the middle area of ​​the impurity removal box. When the first guide plate is opened, the first guide plate blocks the top cover, so that the material can only fall through the middle space and enter the impurity removal middle area;

[0035] When the two first guide plates are closed, the second guide plate flips downward and opens, and the material can slide along the inclined direction of the first baffle plate and the first guide plate, and flow from the area between the middle area and the side area of ​​the impurity removal box to the magnetic sleeve roller;

[0036] When the second material guide plate is closed upward and the first material guide plate is opened, the material previously trapped between the top cover and the first material guide plate, the second material guide plate, the first material baffle plate, and the second material baffle plate can pass through the space in the side area of ​​the impurity removal box;

[0037] This ensures that the material can be evenly distributed to different impurity removal areas inside the impurity removal box, avoids overloading of a single magnetic roller set for impurity removal, and the material is evenly distributed to multiple magnetic rollers for impurity removal, further improving the impurity removal efficiency and effect.

[0038] The first guide plate and the second guide plate realize precise linkage control through the first gear set, ensuring the synchronization in the material diversion process, and the reciprocating control component drives the reciprocating flipping of the first guide plate and the second guide plate, and the reciprocating component is driven by the driving component. At the same time, the driving component also controls the rotation of the magnetic sleeve roller, which reduces the complexity of the control system and the difficulty of maintenance, and helps to improve the overall reliability and operation stability of the equipment.

[0039] Optionally, the reciprocating control component includes a reciprocating plate, a mounting plate is fixed on the discharge box, the reciprocating plate is rotatably connected to the center of the mounting plate, the reciprocating plate is coaxially connected to a hinge shaft of the first material guide plate, two guide straight grooves are provided on the reciprocating plate, the two guide straight grooves are symmetrically arranged about the rotation center of the reciprocating plate, both ends of the mounting plate are rotatably connected to a lever, the lever is rotatably connected to a rolling column perpendicular to the lever, the two levers are synchronously rotated by a second gear set and rotate in opposite directions, and the driving component drives the second gear set to move by a second belt transmission member;

[0040] When the reciprocating plate is in a stationary state, the center line of the guide straight groove in the length direction remains tangent to the circular motion trajectory of the axis of the rolling column, and when one of the shifting rods is in a vertically downward state, the other shifting rod is in a vertically upward state.

[0041] By adopting the above technical solution, a lever of the driving assembly rotates, and the lever drives another lever to rotate in the opposite direction through the second gear set. When the rolling column of one lever enters the corresponding straight guide groove, the rolling column drives the reciprocating plate to move in the straight guide groove and drives the reciprocating plate to rotate. At this time, the reciprocating plate drives the first baffle plate and the second baffle plate to flip, until the rolling column is separated from the corresponding straight guide groove, and the reciprocating plate stops rotating.

[0042] After the reciprocating plate has been stationary for a certain period of time, another rolling column enters the corresponding straight guide groove and drives the reciprocating plate to rotate in the opposite direction, causing the first guide plate and the second guide plate to flip in the opposite direction, until the rolling column leaves the corresponding straight guide groove and the reciprocating plate stops rotating. In this way, the driving component can continuously drive the magnetic sleeve roller to rotate in the same direction while driving the first guide plate and the second guide plate to flip back and forth, and before the first guide plate and the second guide plate perform the next flipping action, they can also maintain the open / closed state for a certain period of time to ensure that enough materials can smoothly enter the impurity removal area for impurity removal.

[0043] Optionally, the reciprocating plate is provided with arc grooves at two corners on one side of the center line of the guide straight groove in the length direction, the lever is coaxially connected with a fan-shaped block, the fan-shaped block has the same curvature as the arc groove, and the side of the fan-shaped block away from the lever is perpendicular to the center line of the lever in the length direction;

[0044] When one of the rolling posts leaves the guiding straight groove, the sector block corresponding to the rolling post just fits with the circular arc groove, until another rolling post enters another guiding straight groove, and the sector block just leaves the circular arc groove.

[0045] By adopting the above technical solution, when a rolling column leaves the guide straight groove, the fan-shaped block of the rolling column just enters the arc groove adjacent to the guide straight groove, and the fan-shaped block limits the reciprocating plate, so that the reciprocating plate will not produce excess offset due to rotational inertia, thereby ensuring that the rolling column can accurately enter the corresponding guide straight groove again to drive the reciprocating plate to rotate, and ensuring that the first guide plate and the second guide plate will not open in the closed state to cause material to pass through, thereby improving the stability of equipment operation.

[0046] Optionally, a plurality of movable holes are provided on both sides of the impurity removal box, the movable holes on both sides correspond to each other one by one, the rotating shaft passes through the corresponding two movable holes, the inner diameter of the movable hole is larger than the outer diameter of the magnetic roller, and a material blocking brush is provided on the inner wall of the movable hole, and the material blocking brush is in contact with the magnetic roller.

[0047] By adopting the above technical solution, the magnetic roller sleeve can be smoothly extended out of the impurity removal box, and due to the adsorption effect of the magnetic roller sleeve, the material blocking brush will not sweep metal impurities into the impurity removal box. At the same time, the material blocking plate can also block the material from being discharged from the movable hole to avoid material leakage.

[0048] Optionally, the fixed upper sliding connection is provided with a slider, and the slider is provided with two support blocks. The rotor and stator of the electromagnetic clutch are provided with annular grooves along their circumferential surfaces, and the support blocks correspond to the annular grooves one by one. The support blocks are located in the corresponding annular grooves, and the magnetic sleeve roller is connected to the rotating shaft through a flat key.

[0049] In summary, the present application includes at least one of the following beneficial technical effects:

[0050] 1. By setting up the electromagnetic clutch and reciprocating screw, the working section and the standby section of the magnetic roller can be automatically switched to achieve continuous impurity removal and cleaning without stopping the machine, thus improving production efficiency;

[0051] 2. Since the contact between the working section of the magnetic roller and the scraper is completed during the cleaning process instead of continuous friction during impurity removal, excessive wear during the impurity removal process is avoided and the service life of the equipment is extended;

[0052] 3. The number and layout of magnetic rollers in the device can be adjusted according to different material or process requirements to achieve compatibility with different production lines, with strong flexibility. Whether more impurity removal areas are needed or layout optimization is required in a limited space, this design can adapt to different needs;

[0053] 4. The materials can be evenly distributed to different cleaning areas inside the cleaning box, avoiding overloading of a single magnetic roller for cleaning. The materials are evenly distributed to multiple magnetic rollers for cleaning, further improving the cleaning efficiency and effect.

[0054] 5. The first guide plate and the second guide plate realize precise linkage control through the first gear set, ensuring the synchronization in the material diversion process, and the reciprocating control component drives the reciprocating flipping of the first guide plate and the second guide plate, and the reciprocating component is controlled and driven by the driving component, and the driving component also controls the rotation of the magnetic sleeve roller. At the same time, the driving component can also cooperate with the electromagnetic clutch to drive the working section of the magnetic sleeve roller to extend for impurity cleaning, realizing integrated drive and collaborative work effect, reducing the complexity of the control system, and reducing the difficulty of maintenance, which is helpful to improve the overall reliability and operation stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0056] Figure 2 It is a schematic diagram of the structure of the first material guide plate, the first material baffle plate, the second material guide plate and the second material baffle plate used in the embodiment of the present application.

[0057] Figure 3 It is a schematic diagram of the structure of the reciprocating control component and the first gear set according to an embodiment of the present application.

[0058] Figure 4 It is a schematic diagram of the structure of the magnetic sleeve roller, the rotating shaft and the fixed platform used in the embodiment of the present application.

[0059] Figure 5 It is a schematic diagram of the structure of an electromagnetic clutch, a scraper assembly and a second contact sensor used in an embodiment of the present application.

[0060] Figure 6 It is a schematic diagram of the structure of the first contact sensor according to an embodiment of the present application.

[0061] Figure 7 It is a schematic diagram of the structure of the reciprocating plate, the straight guide groove and the circular arc groove used in the embodiment of the present application.

[0062] Figure 8 It is a schematic diagram of the structure of the second gear set used to reflect the embodiment of the present application.

[0063] Description of the accompanying drawings: 1. De-impurity box; 11. Top cover; 111. Feeding port; 12. First material guide plate; 13. First material stop plate; 14. Second material guide plate; 15. Second material stop plate; 16. First gear set; 17. Movable hole; 18. Material stop brush; 2. Reciprocating control assembly; 21. Mounting plate; 22. Reciprocating plate; 221. Guide straight groove; 222. Arc groove; 23. Push rod; 24. Rolling column; 25. Second gear set; 26. Fan-shaped block; 3. Driving assembly; 3 1. Driving motor; 32. First belt transmission member; 33. Second belt transmission member; 4. Fixed platform; 41. Nut seat; 42. Sliding block; 43. Support block; 44. First contact sensor; 45. Second contact sensor; 5. Electromagnetic clutch; 51. Annular groove; 6. Reciprocating screw; 71. Rotating shaft; 72. Magnetic sleeve roller; 721. Working section; 722. Spare section; 8. Scraper assembly; 81. Scraper plate; 811. Semicircular groove; 91. Vibrating screen; 92. Collecting hopper. DETAILED DESCRIPTION

[0064] The following is combined with Figure 1-8 This application is described in further detail.

[0065] The embodiment of the present application discloses a magnetic separation and impurity removal device for producing oxygen absorbing masterbatch.

[0066] like Figure 1 and Figure 2 The magnetic separation and impurity removal device for oxygen-absorbing masterbatch production includes an impurity removal box 1, which is a rectangular box body. A top cover 11 is installed on the top of the impurity removal box 1. The top cover 11 is a trapezoidal body. A feed inlet 111 is opened on the top of the top cover 11. The bottom of the top cover 11 is open and connected to the inside of the impurity removal box 1. The impurity removal box 1 is installed in the collecting hopper 92, and the feed inlet 111 of the impurity removal box 1 is connected to the vibrating screen 91.

[0067] The inner wall of the impurity removal box 1 is hinged with two first material guide plates 12, and the two first material guide plates 12 are located in the middle area of ​​the impurity removal box 1;

[0068] The two first material guide plates 12 can be turned upward to contact the inner top wall of the top cover 11;

[0069] The two first material guide plates 12 can dock with each other. When the two first material guide plates 12 are in the docking state, the docking point of the two first material guide plates 12 is located directly below the feed port 111, and the two first material guide plates 12 are inclined toward the feed port 111, and the first material guide plates 12 are parallel to the side wall on the same side of the top cover 11.

[0070] Two first material baffle plates 13 are welded in the impurity removal box 1 , and the two first material baffle plates 13 are respectively connected to the hinges of the two first material guide plates 12 , and the two first material baffle plates 13 are also parallel to the side wall on the same side of the top cover 11 .

[0071] Two second guide plates 14 are hinged on both sides of the impurity removal box 1. The second guide plates 14 can be turned over to connect with the first baffle plate 13 on the same side, and at this time, the second guide plates 14 are parallel to the side wall on the same side of the top cover 11;

[0072] The second material guide plate 14 can also be flipped in the direction away from the top cover 11. The hinged end of the second material guide plate 14 is connected to the second material baffle plate 15. The second material baffle plate 15 is parallel to the side wall of the top cover 11 on the same side, and a space is left between the second material baffle plate 15 and the inner wall of the end of the debris removal box 1.

[0073] like Figure 3 and Figure 4 , the hinge shaft of the first guide plate 12 and the hinge shaft of the second guide plate 14 both extend out of one side of the debris removal box 1, and the hinge shafts of the first guide plate 12 and the second guide plate 14 are jointly equipped with a first gear set 16;

[0074] Under the linkage action of the first gear set 16 , when the first guide plate 12 flips to contact the top cover 11 , the second guide plate 14 flips to engage with the first baffle plate 13 . When the two first guide plates 12 flip to engage with each other, the second guide plate 14 flips away from the top cover 11 .

[0075] The hinge shaft of one of the first guide plates 12 is connected to a reciprocating control component 2, and the reciprocating control component 2 is connected to a driving component 3. The driving component 3 drives the reciprocating control component 2 to move through a second belt transmission component 33, and the reciprocating control component 2 drives the first guide plate 12 to perform a 90° flip reciprocating motion.

[0076] like Figure 3 , Figure 4 and Figure 5 , a plurality of fixed platforms 4 are installed on the side of the impurity removal box 1 away from the driving assembly 3, a nut seat 41 is fixedly installed on the end of the fixed platform 4 away from the impurity removal box 1, a slider 42 is slidably connected to the fixed platform 4, two support blocks 43 are fixed to the slider 42, the top surfaces of the two support blocks 43 are both arc surfaces, and the two support blocks 43 jointly support an electromagnetic clutch 5, the rotor and stator of the electromagnetic clutch 5 are both provided with annular grooves 51 along their respective circumferences, the two support blocks 43 are respectively located in the two annular grooves 51, and the top surfaces of the support blocks 43 are in contact with the annular grooves 51, the stator end of the electromagnetic clutch 5 is coaxially connected with a reciprocating screw 6, and the reciprocating screw 6 is threadedly connected to the nut seat 41. A first contact sensor 44 is installed on the side of the nut seat 41 facing the electromagnetic clutch 5, and a second contact sensor 45 is installed on the end of the fixed platform 4 close to the impurity removal box 1, and the second contact sensor 45 is arranged toward the rotor of the electromagnetic clutch 5.

[0077] The impurity removal box 1 is provided with a plurality of movable holes 17 on the side facing the driving assembly 3 and the side facing the fixed platform 4. The movable holes 17 on both sides correspond to each other. The driving assembly 3 is connected with a plurality of rotating shafts 71. Each rotating shaft 71 is connected with a magnetic sleeve roller 72 through a flat key. The rotating shaft 71 and the magnetic sleeve roller 72 both pass through the corresponding movable hole 17. The inner diameter of the movable hole 17 is larger than the outer diameter of the magnetic sleeve roller 72. The inner wall of the movable hole 17 is provided with a material blocking brush 18. The material blocking brush 18 contacts the magnetic sleeve roller 72. The end of the magnetic sleeve roller 72 is coaxially fixed with the rotor of the electromagnetic clutch 5 through a plurality of connecting rods. The driving assembly 3 can drive all the rotating shafts 71 and the magnetic sleeve roller 72 to rotate synchronously in the same direction. A scraper assembly 8 is installed on the side of the fixed platform 4 away from the driving assembly 3. The scraper assembly 8 corresponds to the movable hole 17 one by one. The scraper assembly 8 is installed around the corresponding movable hole 17.

[0078] The magnetic roller 72 is divided into a working section 721 and a standby section 722. During normal production, the electromagnetic clutch 5 is disconnected, the working section 721 of the magnetic roller 72 rotates in the impurity removal box 1, and the standby end of the magnetic roller 72 extends from the side of the impurity removal box 1 facing the driving assembly 3.

[0079] When the working section 721 of the magnetic sleeve roller 72 needs to be cleaned, the electromagnetic clutch 5 is started, the reciprocating screw 6, the magnetic sleeve roller 72 and the electromagnetic clutch 5 rotate synchronously, the working section 721 of the magnetic sleeve roller 72 gradually extends out of the impurity removal box 1, and the spare section 722 of the magnetic sleeve roller 72 gradually extends into the impurity removal box 1;

[0080] When the working section 721 of the magnetic sleeve roller 72 is completely extended out of the impurity removal box 1, the electromagnetic clutch 5 just contacts the first contact sensor 44, and the system automatically starts the scraper assembly 8 to remove impurities from the magnetic sleeve roller 72. At this time, the end of the reciprocating screw 6 is threadedly connected with the nut seat 41, and the working section 721 of the magnetic sleeve roller 72 begins to gradually extend into the impurity removal box 1.

[0081] When the working section 721 of the magnetic sleeve roller 72 is fully extended into the impurity removal box 1, the end of the reciprocating screw 6 away from the electromagnetic clutch 5 is threadedly connected to the nut seat 41, and at this time the electromagnetic clutch 5 touches the second contact sensor 45, the scraper assembly 8 automatically resets, and the electromagnetic clutch 5 is powered off.

[0082] The magnetic rollers 72 are divided into two rows and staggered, and in the two rows of magnetic rollers 72, there is a space for materials to pass between two adjacent magnetic rollers 72, and all the magnetic rollers 72 are located below the first material guide plate 12, the second material guide plate 14, the first material baffle plate 13 and the second material baffle plate 15.

[0083] The driving assembly 3 drives all the rotating shafts 71 to rotate, and the rotating shafts 71 drive the magnetic sleeve rollers 72 to rotate. When working normally, the electromagnetic clutch 5 is disconnected, and the working section 721 of the magnetic sleeve roller 72 rotates in the impurity removal box 1 to remove metal impurities. When the working section 721 of the magnetic sleeve roller 72 needs to be cleaned, the electromagnetic clutch 5 is started, and the magnetic sleeve roller 72 drives the reciprocating screw 6 to rotate, and the working section 721 of the magnetic sleeve roller 72 extends out of the impurity removal box 1, and the standby section 722 of the magnetic sleeve roller 72 extends into the impurity removal box 1;

[0084] When the working section 721 of the magnetic roller 72 is completely extended out of the impurity removal box 1 and its end is close to the nut seat 41, the end of the reciprocating screw 6 is threadedly connected to the nut seat 41, the scraper assembly 8 starts and rests on the circumference of the magnetic roller 72, and the reciprocating screw 6 and the magnetic roller 72 begin to return. The working section 721 of the magnetic roller 72 gradually extends into the impurity removal box 1, and the scraper assembly 8 scrapes off the metal impurities adsorbed on the working section 721 of the magnetic roller 72, and the metal impurities on the spare section 722 of the magnetic roller 72 can be cleaned during daily equipment maintenance.

[0085] At the same time, the driving component 3 can also drive the reciprocating control component 2 to move while driving the magnetic sleeve roller 72 to rotate. The reciprocating control component 2 drives the first guide plate 12 and the second guide plate 14 to turn over in a linked manner, and the flow path of the material is flexibly controlled. The first guide plate 12 is located in the middle area of ​​the impurity removal box 1, and the second guide plate 14 is located between the side area of ​​the impurity removal box 1 and the middle area of ​​the impurity removal box 1. When the first guide plate 12 is opened, the first guide plate 12 blocks the top cover 11, so that the material can only fall through the middle space and enter the impurity removal middle area;

[0086] When the two first guide plates 12 are closed, the second guide plate 14 is flipped downward and opened, and the material can slide along the inclined direction of the first baffle plate 13 and the first guide plate 12, and flow from the area between the middle area and the side area of ​​the impurity removal box 1 to the magnetic sleeve roller 72;

[0087] When the second material guide plate 14 is closed upward and the first material guide plate 12 is opened, the materials previously retained between the top cover 11 and the first material guide plate 12, the second material guide plate 14, the first material baffle plate 13, and the second material baffle plate 15 can pass through the space in the side area of ​​the impurity removal box 1;

[0088] This ensures that the material can be evenly distributed to different impurity removal areas inside the impurity removal box 1, avoids overloading of a single magnetic roller 72 for impurity removal, and the material is evenly distributed to multiple magnetic rollers 72 for impurity removal, further improving the impurity removal efficiency and effect.

[0089] The first guide plate 12 and the second guide plate 14 are precisely linked and controlled by the first gear set 16, ensuring synchronization during the material diversion process. The reciprocating control component 2 drives the first guide plate 12 and the second guide plate 14 to flip back and forth, and the reciprocating control component 2 is driven by the driving component 3. At the same time, the driving component 3 also controls the rotation of the magnetic sleeve roller 72, which reduces the complexity of the control system and the difficulty of maintenance, and helps to improve the overall reliability and operation stability of the equipment.

[0090] like Figure 7 and Figure 8 The reciprocating assembly includes a mounting plate 21 and a reciprocating plate 22. The reciprocating plate 22 is rotatably connected to the mounting plate 21. The reciprocating plate 22 is coaxially connected to a hinge axis of a first guide plate 12. The reciprocating plate 22 is a square plate. Two guide straight grooves 221 are provided on the reciprocating plate 22. The two guide straight grooves 221 are symmetrically arranged about the center point of the reciprocating plate 22, and the inner wall of the guide straight groove 221 adjacent to the center point of the reciprocating plate 22 is arranged as an arc surface. The guide straight groove 221 passes through the side of the reciprocating plate 22. The reciprocating plate 22 is provided with arc grooves 222 at two corners on one side of the center line of the two guide straight grooves 221 in the length direction. In the embodiment of the present application, the two arc grooves 222 are arranged on one side below the center line of the guide straight groove 221 in the length direction.

[0091] The reciprocating plate 22 is located at the center of the mounting plate 21. Both ends of the mounting plate 21 are rotatably connected to the levers 23. The rotation axes of the two levers 23 are at the same distance from the rotation axis of the reciprocating plate 22. The end of the lever 23 away from its rotation axis is rotatably connected to the rolling column 24 perpendicular to it. A second gear set 25 is installed on the side of the mounting plate 21 away from the reciprocating plate 22. The two levers 23 are rotated synchronously through the second gear set 25 and the two rotation directions are opposite. At the same time, the driving assembly 3 drives the rotation axis of one lever 23 to rotate through the second belt transmission member 33.

[0092] The lever 23 is coaxially connected with a sector block 26 , the sector block 26 corresponds to the arc groove 222 , the lever 23 corresponds to the guide straight groove 221 , and the side of the sector block 26 away from the lever 23 is perpendicular to the length direction center line of the lever 23 .

[0093] When the reciprocating plate 22 is in a stationary state, the center line of the guide straight groove 221 in the length direction is kept tangent to the circular motion trajectory of the axis of the rolling column 24, and when one lever 23 is in a vertically downward state, the other lever 23 is in a vertically upward state;

[0094] Moreover, when a rolling post 24 leaves the corresponding guide straight groove, the sector block 26 corresponding to the rolling post 24 just fits into the corresponding arc groove 222, until another rolling post 24 enters another guide straight groove 221, and the sector block 26 just leaves the corresponding arc groove 222.

[0095] A lever 23 of the driving assembly 3 rotates, and the lever 23 drives another lever 23 to rotate in the opposite direction through the second gear set 25. When the rolling column 24 of one lever 23 enters the corresponding straight guide groove 221, the rolling column 24 drives the moving plate 22 to rotate in the straight guide groove 221. At this time, the reciprocating plate 22 drives the first guide plate 12 and the second guide plate 14 to flip, until the rolling column 24 is separated from the corresponding straight guide groove 221, and the reciprocating plate 22 stops rotating.

[0096] After the reciprocating plate 22 has been stationary for a certain period of time, another rolling column 24 enters the corresponding straight guide groove 221 and drives the reciprocating plate 22 to rotate in the opposite direction, so that the first guide plate 12 and the second guide plate 14 are reversed, until the rolling column 24 is separated from the corresponding straight guide groove 221 and the reciprocating plate 22 stops rotating. Thus, the driving component 3 can continuously drive the magnetic sleeve roller 72 to rotate in the same direction, and can also drive the first guide plate 12 and the second guide plate 14 to reciprocate and flip, and before the first guide plate 12 and the second guide plate 14 perform the next flipping action, they can also maintain the open / closed state for a certain period of time to ensure that enough materials can smoothly enter the impurity removal area for impurity removal.

[0097] When a rolling column 24 leaves the guide straight groove 221, the fan-shaped block 26 of the rolling column 24 just enters the arc groove 222 adjacent to the guide straight groove 221. The fan-shaped block 26 limits the reciprocating plate 22, so that the reciprocating plate 22 will not produce unnecessary offset due to rotational inertia, thereby ensuring that the rolling column 24 can accurately enter the corresponding guide straight groove 221 again to drive the reciprocating plate 22 to rotate, and ensuring that the first guide plate 12 and the second guide plate 14 will not open in the closed state to cause material to pass through, thereby improving the stability of equipment operation.

[0098] like Figure 4 and Figure 5 The driving assembly 3 includes a driving motor 31, which drives all the rotating shafts 71 to rotate through a first belt transmission member 32. The scraper assembly 8 includes two scraper plates 81. The magnetic sleeve roller 72 is located between the two scraper plates 81. The two scraper plates 81 are arranged opposite to each other, and a semicircular groove 811 is opened on the side of the scraper plate 81 facing the magnetic sleeve roller 72. The circular groove formed by the combination of the two semicircular grooves 811 is adapted to the magnetic sleeve roller 72.

[0099] In the embodiment of the present application, the first belt transmission member 32 is a gear toothed belt structure, the driving shaft of the driving motor 31 and the end of the rotating shaft 71 are coaxially fixed with gears, and all the gears are meshed with a toothed belt. The second belt transmission member 33 is a belt drive structure, the driving shaft of the driving motor 31 and the rotating shaft of a lever 23 are coaxially fixed with pulleys, the driving motor 31 is located below the mounting plate 21, and all the pulleys are tightened with belts. The first gear group 16 includes two first gears, two second gears and two third gears, the two first gears are coaxially connected to the rotating shafts of the two first guide plates 12, the two third gears are coaxially connected to the rotating shafts of the two second guide plates 14, the two second gears are respectively located between a group of first gears and third gears, the second gears are meshed with the first gears and third gears of the same group, and the two first gears are meshed with each other.

[0100] like Figure 8 The second gear set 25 includes two fourth gears and two fifth gears. The two fourth gears are coaxially fixed on the rotating shafts of the two levers 23, and the two fifth gears are rotatably connected to the mounting plate 21. The two fifth gears are meshed with each other, and the two fourth gears are each meshed with a fifth gear.

[0101] The implementation principle of the embodiment of the present application is as follows: the driving assembly 3 drives all the rotating shafts 71 to rotate, and the rotating shafts 71 drive the magnetic sleeve rollers 72 to rotate. When working normally, the electromagnetic clutch 5 is disconnected, and the working section 721 of the magnetic sleeve roller 72 rotates in the impurity removal box 1 to remove metal impurities. When the working section 721 of the magnetic sleeve roller 72 needs to be cleaned, the electromagnetic clutch 5 is started, and the magnetic sleeve roller 72 drives the reciprocating screw 6 to rotate, and the working section 721 of the magnetic sleeve roller 72 extends out of the impurity removal box 1, and the spare section 722 of the magnetic sleeve roller 72 extends into the impurity removal box 1;

[0102] When the working section 721 of the magnetic roller 72 is completely extended out of the impurity removal box 1 and its end is close to the nut seat 41, the end of the reciprocating screw 6 is threadedly connected to the nut seat 41, the scraper assembly 8 starts and rests on the circumference of the magnetic roller 72, and the reciprocating screw 6 and the magnetic roller 72 begin to return. The working section 721 of the magnetic roller 72 gradually extends into the impurity removal box 1, and the scraper assembly 8 scrapes off the metal impurities adsorbed on the working section 721 of the magnetic roller 72, and the metal impurities on the spare section 722 of the magnetic roller 72 can be cleaned during daily equipment maintenance.

[0103] By providing the electromagnetic clutch 5 and the reciprocating screw 6, the working section 721 and the standby section 722 of the magnetic sleeve roller 72 can be automatically switched to achieve continuous impurity removal and cleaning without stopping the machine, thereby improving production efficiency.

[0104] Since the contact between the working section 721 of the magnetic sleeve roller 72 and the scraper is completed during the cleaning process rather than continuous friction during the impurity removal, excessive wear during the impurity removal process is avoided and the service life of the equipment is extended.

[0105] The number and layout of the magnetic rollers 72 in the device can be adjusted according to different material or process requirements to achieve compatibility with different production lines, with strong flexibility. Whether more impurity removal areas are needed or layout optimization is performed in a limited space, the design can adapt to different needs.

[0106] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic separation and impurity removal device for the production of oxygen absorbing masterbatch, characterized in that: The invention comprises a debris removal box (1), wherein a plurality of rotating shafts (71) are rotatably arranged in the debris removal box (1), and the two ends of the rotating shafts (71) respectively pass through the debris removal box (1), and the plurality of rotating shafts (71) are driven together by a driving assembly (3), and a magnetic sleeve roller (72) is sleeved on the rotating shaft (71), and the rotating shaft (71) is slidably connected to the magnetic sleeve roller (72), and the magnetic sleeve roller (72) is divided into a working section (721) and a standby section (722), and a plurality of scraper assemblies (8) are arranged on a side of the debris removal box (1) away from the driving assembly (3), and the scraper assemblies (8) correspond to the magnetic sleeve roller (72) one by one, and the end of the magnetic sleeve roller (72) away from the driving assembly (3) is connected to an electromagnetic clutch (5), and the electromagnetic clutch (5) is connected to a reciprocating screw (6), and the reciprocating screw (6) is connected to a nut seat (41), and the nut seat (41) is fixedly arranged; During normal production, the electromagnetic clutch (5) is disconnected, and the working section (721) of the magnetic sleeve roller (72) rotates in the impurity removal box (1); When the working section (721) of the magnetic roller (72) needs to be cleaned, the electromagnetic clutch (5) is started, the working section (721) of the magnetic roller (72) extends out of the impurity removal box (1), and the standby section (722) of the magnetic roller (72) extends into the impurity removal box (1); When the working section (721) of the magnetic roller (72) moves to the nut seat (41), the scraper assembly (8) starts and fits the magnetic roller (72) until the working section (721) of the magnetic roller (72) is completely extended into the impurity removal box (1), and the scraper assembly (8) moves away from the magnetic roller (72).

2. The magnetic separation and impurity removal device for oxygen absorbing masterbatch production according to claim 1 is characterized in that: A plurality of fixed platforms (4) are arranged on a side of the impurity removal box (1) away from the driving assembly (3); the fixed platforms (4) correspond to the nut seats (41) one by one and are fixed to each other; the electromagnetic clutch (5) is slidably connected to the fixed platforms (4), and the electromagnetic clutch (5) can rotate on the fixed platforms (4); a first contact sensor (44) is installed on the nut seat (41); and a second contact sensor (45) is installed on one end of the fixed platform (4) adjacent to the impurity removal box (1); When the electromagnetic clutch (5) touches the first contact sensor (44), the scraper assembly (8) starts and contacts the magnetic sleeve roller (72); when the electromagnetic clutch (5) touches the second contact sensor (45), the scraper assembly (8) is reset and the electromagnetic clutch (5) is powered off.

3. The magnetic separation and impurity removal device for producing oxygen absorbing masterbatch according to any one of claims 1 or 2, characterized in that: The scraper assembly (8) comprises two scraper plates (81), the magnetic sleeve roller (72) is located between the two scraper plates (81), the two scraper plates (81) are arranged opposite to each other, and a semicircular groove (811) is provided on one side of the scraper plate (81) facing the magnetic sleeve roller (72).

4. The magnetic separation and impurity removal device for producing oxygen absorbing masterbatch according to any one of claims 1 or 2, characterized in that: The plurality of magnetic rollers (72) are divided into two rows and arranged in a staggered manner, and in the two rows of magnetic rollers (72), a space for materials to pass through is reserved between two adjacent magnetic rollers (72).

5. The magnetic separation and impurity removal device for oxygen absorbing masterbatch production according to claim 1 is characterized in that: The driving assembly (3) comprises a driving motor (31), and the driving motor (31) drives all the rotating shafts (71) to rotate via a first belt transmission member (32).

6. The magnetic separation and impurity removal device for oxygen absorbing masterbatch production according to claim 1 is characterized in that: The top of the impurity removal box (1) is provided with a top cover (11), and a material inlet (111) for materials to enter is opened on the top cover (11). Two first material guide plates (12) are hingedly connected in the impurity removal box (1), and the two first material guide plates (12) are arranged opposite to each other and inclined toward the material inlet (111). One end of the two first material guide plates (12) away from the material inlet (111) is connected to a first material baffle plate (13), and the first material baffle plate (13) is away from the material inlet (111). One end of the first material guide plate (12) is connected to a second material guide plate (14), the second material guide plate (14) is hinged in the impurity removal box (1), a second material baffle plate (15) is further provided in the impurity removal box (1), the second material baffle plate (15) is connected to the second material guide plate (14), the second material baffle plate (15) and the first material baffle plate (13) are located on the same inclined surface, and a space for materials to pass through is reserved between the second material baffle plate (15) and the side wall of the impurity removal box (1); The hinge shafts of the first material guide plate (12) and the second material guide plate (14) are linked via a first gear set (16); the driving assembly (3) is connected to a reciprocating control assembly (2); the reciprocating control assembly (2) is used to drive the first material guide plate (12) and the second material guide plate (14) to reciprocate and flip; When the first material guide plate (12) flips upward and contacts the top cover (11), the second material guide plate (14) is connected to the first material blocking plate (13); When the two first material guide plates (12) flip downward and connect with each other, the second material guide plate (14) flips in a direction away from the top cover (11).

7. The magnetic separation and impurity removal device for producing oxygen absorbing masterbatch according to claim 6, characterized in that: The reciprocating control assembly (2) comprises a reciprocating plate (22), a mounting plate (21) is fixed on the impurity removal box (1), the reciprocating plate (22) is rotatably connected to the center of the mounting plate (21), the reciprocating plate (22) is coaxially connected to a hinge shaft of the first material guide plate (12), two guide straight grooves (221) are provided on the reciprocating plate (22), the two guide straight grooves (221) are symmetrically arranged about the rotation center of the reciprocating plate (22), both ends of the mounting plate (21) are rotatably connected to a lever (23), the lever (23) is rotatably connected to a rolling column (24) perpendicular thereto, the two levers (23) are synchronously rotated through a second gear set (25) and the rotation directions are opposite, and the driving assembly (3) drives the second gear set (25) to move through a second belt transmission member (33); When the reciprocating plate (22) is in a stationary state, the center line of the guide straight groove (221) in the length direction remains tangent to the axial circular motion trajectory of the rolling column (24), and when one of the shifting rods (23) is in a vertically downward state, the other of the shifting rods (23) is in a vertically upward state.

8. The magnetic separation and impurity removal device for producing oxygen absorbing masterbatch according to claim 7, characterized in that: The reciprocating plate (22) is provided with arc grooves (222) at two corners on one side of the center line of the guide straight groove (221) in the length direction; the lever (23) is coaxially connected with a sector block (26); the sector block (26) and the arc groove (222) have the same curvature; and the side of the sector block (26) away from the lever (23) is perpendicular to the center line of the lever (23) in the length direction; When one of the rolling columns (24) leaves the straight guiding groove (221), the sector block (26) corresponding to the rolling column (24) just fits into the arc groove (222), until another of the rolling columns (24) enters another straight guiding groove (221), at which time the sector block (26) just leaves the arc groove (222).

9. The magnetic separation and impurity removal device for producing oxygen absorbing masterbatch according to claim 1, characterized in that: A plurality of movable holes (17) are provided on both sides of the impurity removal box (1), the movable holes (17) on both sides correspond to each other, the rotating shaft (71) passes through two corresponding movable holes (17), the inner diameter of the movable hole (17) is larger than the outer diameter of the magnetic sleeve roller (72), and a material blocking brush (18) is provided on the inner wall of the movable hole (17), and the material blocking brush (18) is in contact with the magnetic sleeve roller (72).

10. The magnetic separation and impurity removal device for producing oxygen absorbing masterbatch according to claim 2, characterized in that: A slider (42) is slidably connected to the fixed platform (4), and two support blocks (43) are arranged on the slider (42). The rotor and stator of the electromagnetic clutch (5) are provided with annular grooves (51) along their circumferential surfaces. The support blocks (43) correspond to the annular grooves (51) one by one. The support blocks (43) are located in the corresponding annular grooves (51). The magnetic sleeve roller (72) is connected to the rotating shaft (71) via a flat key.

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