Magnetic separation and impurity removal device for oxygen-absorbing masterbatch production

Abstract

The present application belongs to the technical field of magnetic impurity removal, and relates to a magnetic separation and impurity removal device for oxygen-absorbing master-batch production. The magnetic separation and impurity removal device comprises an impurity removal box, wherein several rotating shafts are rotationally provided in the impurity removal box, both ends of each rotating shaft extend out of the impurity removal box, the several rotating shafts are all driven by means of a driving assembly, a magnetic sleeve roller is sleeved on each rotating shaft, and each rotating shaft is slidably connected to a magnetic sleeve roller; each magnetic sleeve roller is divided into a working section and a standby section; several scraper assemblies are provided on the side of the impurity removal box facing away from the driving assembly, and the scraper assemblies correspond to the magnetic sleeve rollers on a one-to-one basis; an electromagnetic clutch is connected to the end of each magnetic sleeve roller away from the driving assembly; a reciprocating lead screw is connected to each electromagnetic clutch; a nut seat is connected to each reciprocating lead screw; and the nut seats are fixedly arranged. The present application has the effects of cleaning magnetic rollers without shutting down, efficiently clearing impurities away from the magnetic rollers, and optimizing the spatial layout to improve the impurity removal effect.

Description

A magnetic impurity removal device for oxygen-absorbing master batch production TECHNICAL FIELD

[0001] The present application relates to the technical field of magnetic impurity removal, in particular to a magnetic impurity removal device for oxygen-absorbing master batch production. BACKGROUND

[0002] Generally, PET needs to add oxygen-absorbing components into the molten liquid for mixing or even reaction during the synthesis process, which can directly obtain PET raw materials with oxygen-absorbing capacity, but limits the selection of raw material diversity and product diversity downstream, and the process can only perform simple physical blending, cannot achieve the shearing mixing effect of a twin-screw extruder, the mixing uniformity and the particle size of the dispersed phase are larger, and finally the oxygen-absorbing effect and the packaging bottle forming capacity are affected.

[0003] In view of the above problems, the patent with publication number CN114806165A discloses a kind of oxygen-absorbing master batch for food packaging and its preparation device and method, including the equipment for vacuum drying oxygen-absorbing master batch, the oxygen-absorbing master batch contains two components A and B, A component is nylon (nylon MXD6) and PET, B component is PET and catalyst (cobalt salt master batch), after preparation, add and mix according to proportion, then extrude as a whole to solve the above problems.

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

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

[0006] 2. After mixing component A and component B separately, the material of component A and the material of component B are prepared through the process of double-screw extruder, cooling tank, air knife, granulator and vibrating screen;

[0007] 3. Dry component B;

[0008] 4. Add the material of component A and the material of component B into the preparation device of oxygen-absorbing master batch according to the proportion of 100 parts of total mass, and dry under vacuum environment.

[0009] The related art described above, in the process of step 2, due to various reasons such as wear of production equipment, impurities in raw materials and pollution of production environment, the A component and the B component usually adsorb / dope metal impurities, and the content of metal impurities must be strictly controlled to ensure the functionality and safety of the oxygen-absorbing master batch (especially in food plastic packaging). Therefore, after the materials of the A component and the materials of the B component are screened by the vibrating screen, magnetic adsorption impurity removal is usually required. The magnetic adsorption 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 are either to stop periodically for cleaning or to use an external brush to make one side of the magnetic roller protrude into the adsorption area to contact the brush to sweep off the metal impurities.

[0010] However, the cleaning by stopping will affect the production efficiency, and the cleaning by the brush is not easy to separate the metal impurities from the magnetic roller due to the tight adsorption of the metal impurities on the magnetic roller, so that the cleaning is not clean, and one side of the magnetic roller always protrudes into the adsorption area, which limits the spatial layout of the magnetic roller and makes it difficult to optimize the design of the equipment to improve the impurity removal effect. SUMMARY

[0011] In order to meet the requirements of cleaning the magnetic roller without stopping, efficiently cleaning the impurities on the magnetic roller and optimizing the spatial layout to improve the impurity removal effect, the application provides a magnetic separation and impurity removal device for oxygen-absorbing master batch production.

[0012] The magnetic separation and impurity removal device for oxygen-absorbing master batch production provided by the application adopts the following technical solution:

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

[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 sleeve roller needs to be cleaned, the electromagnetic clutch is started, the working section of the magnetic sleeve roller protrudes out of the impurity removal box, and the standby section of the magnetic sleeve roller protrudes into the impurity removal box.

[0016] When the working section of the magnetic sleeve roller moves to the nut seat, the scraper assembly is activated and adheres to the magnetic sleeve roller until the working section of the magnetic sleeve roller is fully inserted into the impurity removal box, and the scraper assembly is away from the magnetic sleeve roller.

[0017] By adopting the above technical scheme, the driving assembly drives all rotating shafts to rotate, the rotating shafts drive the magnetic sleeve roller to rotate, in normal operation, the electromagnetic clutch is disconnected, 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 activated, the magnetic sleeve roller drives the reciprocating screw rod to rotate, the working section of the magnetic sleeve roller is extended out of the impurity removal box, and the standby section of the magnetic sleeve roller is inserted into the impurity removal box.

[0018] When the working section of the magnetic sleeve roller is fully extended out of the impurity removal box and the end thereof is close to the nut seat, the end of the reciprocating screw rod is threadedly connected with the nut seat, the scraper assembly is activated and abuts against the peripheral surface of the magnetic sleeve roller, at the same time, the reciprocating screw rod and the magnetic sleeve roller start to return, the working section of the magnetic sleeve roller is gradually inserted into the impurity removal box, the metal impurities on the working section of the magnetic sleeve roller are scraped off by the scraper assembly, and the metal impurities on the standby section of the magnetic sleeve roller can be cleaned during daily equipment maintenance.

[0019] By arranging the electromagnetic clutch and the reciprocating screw rod, the working section and the standby section of the magnetic sleeve roller can be automatically switched, continuous impurity removal and cleaning without shutdown are realized, and the production efficiency is improved.

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

[0021] The number and layout of the magnetic sleeve rollers in the device can be adjusted according to different materials or process requirements, different production lines are compatible, and the device has strong flexibility. Whether more impurity removal areas are needed or layout optimization is needed in a limited space, the design can adapt to different requirements.

[0022] Optionally, a plurality of fixing tables are arranged on the side of the impurity removal box away from the driving assembly, the fixing tables are fixed one by one with the nut seats, the electromagnetic clutch is slidably connected to the fixing tables, and the electromagnetic clutch can rotate on the fixing tables, a first contact sensor is arranged on the nut seat, and a second contact sensor is arranged on the end of the fixing table close to the impurity removal box.

[0023] When the electromagnetic clutch touches the first contact sensor, the scraper assembly is activated and adheres to the magnetic sleeve roller, and 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 technical scheme, when the working section of the magnetic sleeve roller completely extends out of the impurity removal box, the electromagnetic clutch is in contact with the first contact sensor, the system automatically starts the scraper assembly to remove impurities from the magnetic sleeve roller; when the working section of the magnetic sleeve roller is reset, the electromagnetic clutch is in contact with the second contact sensor, the scraper assembly is automatically reset, and the electromagnetic clutch is powered off, without a complex control program, thereby improving the convenience of operation.

[0025] Optionally, the scraper assembly comprises two scraping plates, the magnetic sleeve roller is located between the two scraping plates, the two scraping plates are oppositely arranged, and a semicircular groove is formed on one side of the scraping plate facing the magnetic sleeve roller.

[0026] By adopting the technical scheme, the semicircular groove of the scraping plate is matched with the shape of the magnetic sleeve roller, so that the contact between the scraping plate and the magnetic sleeve roller is more close, the metal impurities adsorbed on the surface of the magnetic sleeve roller are effectively scraped off, the cleaning effect is improved, and the cleaning effect is improved.

[0027] Optionally, the plurality of magnetic sleeve rollers are arranged in two rows and are staggered, and a space for passing material is left between two adjacent magnetic sleeve rollers in the two rows of magnetic sleeve rollers.

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

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

[0030] Optionally, a top cover is arranged on the top of the impurity removal box, an inlet for material is formed in the top cover, two first guide plates are hingedly arranged in the impurity removal box, the two first guide plates are oppositely arranged and are both inclined towards the inlet, a first material blocking plate is connected to one end of the two first guide plates away from the inlet, a second guide plate is connected to one end of the first material blocking plate away from the first guide plate, the second guide plate is hingedly arranged in the impurity removal box, a second material blocking plate is arranged in the impurity removal box, the second material blocking plate is connected to the second guide plate, the second material blocking plate and the first material blocking plate are located on the same inclined surface, and a space for passing material is left between the second material blocking plate and the side wall of the impurity removal box.

[0031] The hinging shafts of the first material guide plates and the second material guide plates are connected through a first gear set, the driving assembly is connected with a reciprocating control assembly, and the reciprocating control assembly is used to drive the first material guide plates and the second material guide plates to reciprocate and overturn;

[0032] When the first material guide plates are upwardly overturned and abut against the top cover, the second material guide plates are connected with the first material blocking plates;

[0033] When the two first material guide plates are downwardly overturned and connected with each other, the second material guide plates are overturned in a direction away from the top cover.

[0034] Through the linkage and overturning of the first material guide plates and the second material guide plates, the flow path of the material is flexibly controlled. The first material guide plates are located in the middle region of the eddy current box, and the second material guide plates are located between the side region of the eddy current box and the middle region of the eddy current box. When the first material guide plates are opened, the first material guide plates block the top cover, so that the material can only fall through the middle space and be concentrated into the eddy current middle region;

[0035] When the two first material guide plates are closed, the second material guide plates are overturned downwardly and opened, and the material can slide along the inclined direction of the first material blocking plates and the first material guide plates and flow from the region between the eddy current middle region and the side region to the magnetic sleeve roller;

[0036] When the second material guide plates are upwardly closed and the first material guide plates are opened, the material previously retained between the top cover, the first material guide plates, the second material guide plates, the first material blocking plates and the second material blocking plates can pass through the space of the eddy current side region;

[0037] Therefore, the material can be evenly distributed to different eddy current regions in the eddy current box, the single magnetic sleeve roller is prevented from being overloaded for eddy current removal, the material is evenly distributed to multiple magnetic sleeve rollers for eddy current removal, and the eddy current removal efficiency and effect are further improved.

[0038] The first material guide plates and the second material guide plates are precisely and linkingly controlled through the first gear set, the synchronization in the material guiding process is ensured, the reciprocating control assembly drives the first material guide plates and the second material guide plates to reciprocate and overturn, the reciprocating assembly is controlled and driven by the driving assembly, the driving assembly also controls the rotation of the magnetic sleeve roller, the complexity of the control system is reduced, the maintenance difficulty is reduced, and the overall reliability and operation stability of the equipment are improved.

[0039] Optionally, the reciprocating control assembly comprises a reciprocating plate, the discharge box is fixed with a mounting plate, the reciprocating plate is rotationally connected at the center of the mounting plate, the reciprocating plate is coaxially connected with the hinge shaft of one of the first guide plates, two guide straight grooves are formed in the reciprocating plate, the two guide straight grooves are symmetrically arranged about the rotation center of the reciprocating plate, the two ends of the mounting plate are rotationally connected with a lever, the lever is rotationally connected with a rolling column perpendicular to the lever, the two levers are synchronously rotated and in opposite directions through a second gear set, and the driving assembly drives the second gear set to move through a second belt transmission member.

[0040] When the reciprocating plate is in a static state, the center line of the length direction of the guide straight groove is tangent to the circular motion track of the axis of the rolling column, and when one of the levers is in a vertically downward state, the other lever is in a vertically upward state.

[0041] By adopting the above technical scheme, the driving assembly drives one lever to rotate, the lever drives the other lever to rotate in the opposite direction through the second gear set, when the rolling column of one lever enters the corresponding guide straight groove, the rolling column drives the movement in the guide straight groove and drives the reciprocating plate to rotate, at this time, the reciprocating plate drives the first and second guide plates to flip until the rolling column is separated from the corresponding guide straight groove, and the reciprocating plate stops rotating.

[0042] After the reciprocating plate is static for a certain period of time, the other rolling column enters the corresponding guide straight groove and drives the reciprocating plate to rotate in the opposite direction, so that the first and second guide plates are flipped in the opposite direction until the rolling column is separated from the corresponding guide straight groove, and the reciprocating plate stops rotating. Thus, the driving assembly can continuously drive the magnetic sleeve roller to rotate in the same direction, and can also drive the first and second guide plates to reciprocally flip, and can also maintain the opening / closing state for a certain period of time before the first and second guide plates perform the next flipping action, so as to ensure that enough materials can smoothly enter the impurity removal area for impurity removal.

[0043] Optionally, two arc grooves are formed in the two corners of the reciprocating plate on one side of the center line of the length direction of the guide straight groove, the lever is coaxially connected with a sector block, the sector block has the same arc as the arc groove, and the side of the sector block away from the lever is perpendicular to the center line of the length direction of the lever.

[0044] When one of the rolling columns is separated from the guide straight line groove, the sector block corresponding to the rolling column is just fitted with the arc groove, and when the other rolling column enters the other guide straight groove, the sector block is just separated from the arc groove.

[0045] By adopting the technical scheme, when a rolling column leaves a guide straight groove, a sector block of the rolling column enters a circular arc groove adjacent to the guide straight groove, the sector block limits the reciprocating plate, the reciprocating plate cannot produce an excessive offset amount due to rotational inertia, and therefore, it can be ensured that the rolling column can accurately enter the corresponding guide straight groove again to drive the reciprocating plate to rotate, and it can be ensured that the first guide plate and the second guide plate do not appear to be open to cause the material to pass through when in the closed state, and the stability of equipment operation is improved.

[0046] Optionally, a plurality of movable holes are formed on the two sides of the impurity removal box, the movable holes on the two sides are one-to-one corresponding, 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 arranged on the inner wall of the movable hole and in contact with the magnetic roller.

[0047] By adopting the technical scheme, the magnetic sleeve roller can smoothly extend out of the impurity removal box, and due to the adsorption effect of the magnetic sleeve roller, the material blocking brush cannot sweep the metal impurities into the impurity removal box, and at the same time, the material blocking plate can also block the material from being discharged from the movable hole, avoiding material leakage.

[0048] Optionally, a sliding block is slidably connected to the fixed upper portion, two supporting blocks are arranged on the sliding block, annular grooves are formed in the circumferential surface of the rotor and the stator of the electromagnetic clutch, the supporting blocks correspond to the annular grooves one-to-one, the supporting blocks are located in the corresponding annular grooves, and the magnetic sleeve roller is connected with the rotating shaft through a key.

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

[0050] 1. By arranging the electromagnetic clutch and the reciprocating screw, the working section and the standby section of the magnetic sleeve roller can be automatically switched, continuous impurity removal and cleaning without stopping are realized, and the production efficiency is improved;

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

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

[0053] 4. The material can be evenly distributed to different impurity removal areas inside the impurity removal box, avoiding overloading of a single magnetic sleeve roller for impurity removal, and the material is evenly distributed to multiple magnetic sleeve rollers for impurity removal, further improving the impurity removal efficiency and impurity removal effect;

[0054] 5. The first guide plate and the second guide plate are controlled by the first gear set to realize precise linkage control, to ensure the synchronization in the material guiding process, and the reciprocating control assembly drives the first guide plate and the second guide plate to reciprocate, and the reciprocating assembly is controlled and driven by the driving assembly, and the driving assembly also controls the rotation of the magnetic sleeve roller, and the driving assembly can also cooperate with the electromagnetic clutch to drive the magnetic sleeve roller working section to extend for impurity cleaning, to realize integrated driving and cooperative working effect, to reduce the complexity of the control system, to reduce the maintenance difficulty, and to help improve the overall reliability and operation stability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0055] Fig. 1 is a schematic diagram of the overall structure of the embodiment of the application.

[0056] Fig. 2 is a schematic diagram of the structure of the embodiment of the application for embodying the first guide plate, the first baffle plate, the second guide plate and the second baffle plate.

[0057] Fig. 3 is a schematic diagram of the structure of the embodiment of the application for embodying the reciprocating control assembly and the first gear set.

[0058] Fig. 4 is a schematic diagram of the structure of the embodiment of the application for embodying the magnetic sleeve roller, the rotating shaft and the fixed table.

[0059] Fig. 5 is a schematic diagram of the structure of the embodiment of the application for embodying the electromagnetic clutch, the scraper assembly and the second contact sensor.

[0060] Fig. 6 is a schematic diagram of the structure of the embodiment of the application for embodying the second contact sensor.

[0061] Fig. 7 is a schematic diagram of the structure of the embodiment of the application for embodying the reciprocating plate, the guide straight slot and the circular arc slot.

[0062] Fig. 8 is a schematic diagram of the structure of the embodiment of the application for embodying the second gear set.

[0063] Explanation of reference signs: 1, impurity removal box; 11, top cover; 111, feeding port; 12, first guide plate; 13, first blocking plate; 14, second guide plate; 15, second blocking plate; 16, first gear set; 17, movable hole; 18, blocking brush; 2, reciprocating control assembly; 21, mounting plate; 22, reciprocating plate; 221, guide straight groove; 222, circular arc groove; 23, push rod; 24, rolling column; 25, second gear set; 26, sector block; 3, driving assembly; 31, driving motor; 32, first belt transmission member; 33, second belt transmission member; 4, fixed table; 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 lead screw; 71, rotating shaft; 72, magnetic sleeve roller; 721, working section; 722, standby section; 8, scraper assembly; 81, scraping plate; 811, semicircular groove; 91, vibrating screen; 92, material collecting hopper. DETAILED DESCRIPTION

[0064] The application will be further described in detail below in combination with Figs. 1-8.

[0065] The application discloses a magnetic impurity removal device for oxygen-absorbing master batch production.

[0066] As shown in Figs. 1 and 2, the magnetic impurity removal device for oxygen-absorbing master batch production comprises an impurity removal box 1, which is a cuboid box body. The top of the impurity removal box 1 is provided with a top cover 11, which is a trapezoidal body. The top cover 11 is provided with a feeding port 111 at the top, and the bottom of the top cover 11 is open and communicates with the inside of the impurity removal box 1. The impurity removal box 1 is installed in the material collecting hopper 92, and the feeding port 111 of the impurity removal box 1 is connected with the vibrating screen 91.

[0067] Two first guide plates 12 are hingedly connected to the inner wall of the impurity removal box 1, and the two first guide plates 12 are located in the middle region of the impurity removal box 1.

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

[0069] The two first guide plates 12 can be butted against each other. When the two first guide plates 12 are in the state of being butted against each other, the butt joint of the two first guide plates 12 is located directly below the feeding port 111, and the two first guide plates 12 are both inclined toward the feeding port 111, and the first guide plates 12 are parallel to the side wall on the same side of the top cover 11.

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

[0071] Two second material guiding plates 14 are hinged on two sides of the impurity removing box 1, and the second material guiding plates 14 can be turned to link with the first material blocking plates 13 on the same side, and at this time, the second material guiding plates are parallel with the side wall on the same side of the top cover 11.

[0072] The second material guiding plates 14 can also be turned away from the top cover 11, and the hinged ends of the second material guiding plates 14 link with the second material blocking plates 15, which are parallel with the side wall on the same side of the top cover 11, and there is a space between the second material blocking plates 15 and the end inner wall of the impurity removing box 1.

[0073] As shown in FIG. 3 and FIG. 4, the hinged shafts of the first material guiding plates 12 and the hinged shafts of the second material guiding plates 14 all extend out of one side of the impurity removing box 1, and the hinged shafts of the first material guiding plates 12 and the hinged shafts of the second material guiding plates 14 are jointly installed with the second gear set 25.

[0074] Under the linkage of the second gear set 25, when the first material guiding plates 12 are turned to contact the top cover 11, the second material guiding plates 14 are turned to link with the first material blocking plates 13, and when the two first material guiding plates 12 are turned to link with each other, the second material guiding plates 14 are turned away from the top cover 11.

[0075] The hinged shaft of one of the first material guiding plates 12 is connected with the reciprocating control assembly 2, the reciprocating control assembly 2 is connected with the driving assembly 3, the driving assembly 3 drives the reciprocating control assembly 2 to move through the second belt transmission member 33, and the reciprocating control assembly 2 drives the first material guiding plate 12 to make 90° turning reciprocating motion.

[0076] As shown in FIG. 3, FIG. 4 and FIG. 5, a plurality of fixed tables 4 are installed on the side of the impurity removing box 1 away from the driving assembly 3, a nut seat 41 is fixedly installed on the end of the fixed table 4 away from the impurity removing box 1, a sliding block 42 is slidingly connected on the fixed table 4, two support blocks 43 are fixed on the sliding block, the top surfaces of the two support blocks 43 are arc surfaces, an electromagnetic clutch 5 is jointly supported on the two support blocks 43, annular grooves 51 are formed along the circumferential surfaces of the rotor and the stator of the electromagnetic clutch 5, the two support blocks 43 are located in the two annular grooves 51 respectively, and the top surfaces of the support blocks 43 are in close contact with the annular grooves 51, a reciprocating lead screw 6 is coaxially connected with the stator end of the electromagnetic clutch 5, and the reciprocating lead screw 6 is threadedly connected with the nut seat 41. A first contact sensor 44 is installed on the side of the nut seat 41 facing the electromagnetic clutch 5, a second contact sensor 45 is installed on the end of the fixed table 4 close to the impurity removing box 1, and the second contact sensor 45 is arranged to face the rotor of the electromagnetic clutch 5.

[0077] The side of the impurity removal box 1 facing the driving assembly 3 and the side facing the fixed table 4 are provided with a plurality of movable holes 17, the movable holes 17 on the two 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 pass through the corresponding movable hole 17, the inner diameter of the movable hole 17 is greater 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 is in contact with the magnetic sleeve roller 72, and the end of the magnetic sleeve roller 72 is coaxially fixed with the rotor of the electronic clutch through a plurality of connecting rods. The driving assembly 3 can drive all the rotating shafts 71 and the magnetic sleeve rollers 72 to synchronously rotate in the same direction. The fixed table 4 is provided with a scraper assembly 8 on the side away from the driving assembly 3, the scraper assembly 8 corresponds to the movable hole 17 one by one, and the scraper assembly 8 is installed around the corresponding movable hole 17.

[0078] The magnetic sleeve roller 72 is divided into a working section 721 and a standby section 722, when the production is normally carried out, the electromagnetic clutch 5 is disconnected, the working section 721 of the magnetic sleeve roller 72 rotates in the impurity removal box 1, and the standby section of the magnetic sleeve roller 72 extends out 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 rod 6, the magnetic sleeve roller 72 and the electromagnetic clutch 5 synchronously rotate, the working section 721 of the magnetic sleeve roller 72 gradually extends out of the impurity removal box 1, and the standby 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 completely extends out of the impurity removal box 1, the electromagnetic clutch 5 just contacts the first contact sensor 44, the system automatically starts the scraper assembly 8 to remove the impurities on the magnetic sleeve roller 72, and at this time, the end of the reciprocating screw rod 6 is threadedly connected with the nut seat 41, and the working section 721 of the magnetic sleeve roller 72 starts to gradually extend into the impurity removal box 1;

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

[0082] The magnetic sleeve rollers 72 are divided into two rows and are arranged in a staggered manner, and in the two rows of magnetic sleeve rollers 72, a space for material passing is left between two adjacent magnetic sleeve rollers 72, and all the magnetic sleeve rollers 72 are located below the first material guide plate 12, the second material guide plate 14, the first material blocking plate 13 and the second material blocking plate 15.

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

[0084] When the working section 721 of the magnetic sleeve roller 72 completely extends out of the metal removal box 1 and its end approaches the nut seat 41, the end of the reciprocating screw 6 is screwed with the nut seat 41, the scraper assembly 8 is started and abuts against the circumferential surface of the magnetic sleeve roller 72, at the same time, the reciprocating screw 6 and the magnetic sleeve roller 72 begin to return, the working section 721 of the magnetic sleeve roller 72 gradually extends into the metal removal box 1, and the metal impurities adsorbed on the working section 721 of the magnetic sleeve roller 72 are scraped off by the scraper assembly 8, and the metal impurities on the standby section 722 of the magnetic sleeve roller 72 can be cleaned during daily equipment maintenance.

[0085] At the same time, the driving assembly 3 drives the reciprocating control assembly 2 to move during the rotation of the magnetic sleeve roller 72, the reciprocating control assembly 2 drives the linkage of the first guide plate 12 and the second guide plate 14 to turn over, and the flow path of the material is flexibly controlled. The first guide plate 12 is located in the middle region of the metal removal box 1, and the second guide plate 14 is located between the side region of the metal removal box 1 and the middle region of the metal 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 concentrate into the middle region of the metal removal box 1;

[0086] When the two first guide plates 12 are closed, the second guide plate 14 is turned over to open downward, and the material can slide along the inclined direction of the first guide plate 13 and the first guide plate 12, and flow from the region between the middle region and the side region of the metal removal box 1 to the magnetic sleeve roller 72;

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

[0088] Therefore, the material can be evenly distributed to different metal removal regions in the metal removal box 1, avoiding overloading of a single magnetic sleeve roller 72, and the material is evenly distributed to multiple magnetic sleeve rollers 72 for metal removal, further improving the metal removal efficiency and effect.

[0089] The first material guide plate 12 and the second material guide plate 14 are controlled in linkage by the first gear set 16, so that the synchronization in the material guiding process is ensured, and the reciprocating control assembly 2 drives the first material guide plate 12 and the second material guide plate 14 to reciprocate, the reciprocating control assembly 2 is controlled and driven by the driving assembly 3, meanwhile, the driving assembly 3 also controls the rotation of the magnetic sleeve roller 72, so that the complexity of the control system is reduced, the maintenance difficulty is also reduced, and the overall reliability and operation stability of the equipment are improved.

[0090] As shown in FIGS. 7 and 8, the reciprocating assembly comprises a mounting plate 21 and a reciprocating plate 22, the reciprocating plate 22 is rotationally connected to the mounting plate 21, the reciprocating plate 22 is coaxially connected to the rotating shaft 71 of the first material guide plate 12, the reciprocating plate 22 is a square plate, two guide straight grooves 221 are formed in the reciprocating plate 22, the two guide straight grooves 221 are symmetrically arranged about the center point of the reciprocating plate 22, the inner wall of the guide straight groove 221 near the center point of the reciprocating plate 22 is provided as a circular arc surface, the guide straight groove 221 penetrates to the side surface of the reciprocating plate 22, and circular arc grooves 222 are formed at two edge corners of the reciprocating plate 22 on one side of the length direction center line of the two guide straight grooves 221 in the embodiment of the present application, the two circular arc grooves 222 are formed on the lower side of the length direction center line of the guide straight groove 221.

[0091] The reciprocating plate 22 is located at the center of the mounting plate 21, the two ends of the mounting plate 21 are rotationally connected with a lever 23, the distance between the rotating shafts of the two levers 23 and the rotating shaft of the reciprocating plate 22 is the same, and a rolling column 24 perpendicular to the lever 23 is rotationally connected to the end of the lever 23 away from the rotating shaft. Meanwhile, the side of the mounting plate 21 away from the reciprocating plate 22 is provided with a second gear set 25, the two levers 23 are synchronously rotated through the second gear set 25, and the rotating directions of the two levers 23 are opposite. Meanwhile, the driving assembly 3 drives the rotating shaft 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 circular arc groove 222 one by one, the lever 23 corresponds to the guide straight groove 221 one by one, and the side edge 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 length direction center line of the guide straight groove 221 and the circular motion track of the axis of the rolling column 24 are tangent to each other, and when one lever 23 is in a vertically downward state, the other lever 23 is in a vertically upward state;

[0094] Moreover, when one rolling column 24 leaves the corresponding guide straight groove, the sector block 26 corresponding to the rolling column 24 is just fitted with the corresponding circular arc groove 222, and until the other rolling column 24 enters the other guide straight groove 221, the sector block 26 is just separated from the corresponding circular arc groove 222.

[0095] The driving assembly 3 drives one push rod 23 to rotate, and the push rod 23 drives another push rod 23 to rotate reversely through the second gear set 25. When the rolling column 24 of one push rod 23 enters the corresponding guide straight slot 221, the rolling column 24 drives the reciprocating plate 22 to rotate by moving in the guide straight slot 221 and driving the reciprocating plate 22 to rotate. At this time, the reciprocating plate 22 drives the first material blocking plate 13 and the second material blocking plate 15 to flip, until the rolling column 24 is separated from the corresponding guide straight slot 221, and the reciprocating plate 22 stops rotating.

[0096] After the reciprocating plate 22 is static for a certain period of time, another rolling column 24 enters the corresponding guide straight slot 221, and drives the reciprocating plate 22 to rotate reversely, so that the first material blocking plate 13 and the second material blocking plate 15 are flipped reversely, until the rolling column 24 is separated from the corresponding guide straight slot 221, and the reciprocating plate 22 stops rotating. Thus, the driving assembly 3 can realize that the magnetic sleeve roller 72 is continuously driven to rotate in the same direction, and the first material blocking plate 13 and the second material blocking plate 15 are reciprocally flipped, and before the first material blocking plate 13 and the second material blocking plate 15 perform the next flipping action, the opening / closing state can be maintained for a certain period of time, so as to ensure that enough materials can smoothly enter the impurity removal area for impurity removal.

[0097] When one rolling column 24 leaves the guide straight slot 221, the sector block 26 of the rolling column 24 enters the circular arc slot 222 adjacent to the guide straight slot 221. The sector block 26 limits the reciprocating plate 22, so that the reciprocating plate 22 will not produce excessive offset due to rotational inertia, so as to ensure that the rolling column 24 can accurately enter the corresponding guide straight slot 221 again to drive the reciprocating plate 22 to rotate, and ensure that the first material blocking plate 13 and the second material blocking plate 14 will not appear opening when in the closed state, so as to improve the stability of the equipment operation.

[0098] As shown in FIGS. 4 and 5, the driving assembly 3 includes a driving motor 31, and the driving motor 31 drives all rotating shafts 71 to rotate through a first belt transmission member 32. The scraper assembly 8 includes two material scraping plates 81, and the magnetic sleeve roller 72 is located between the two material scraping plates 81. The two material scraping plates 81 are oppositely arranged, and a semicircular groove 811 is formed on the side of the material scraping plate 81 facing the magnetic sleeve roller 72. The circular groove formed by combining the two semicircular grooves 811 is matched with the magnetic sleeve roller 72.

[0099] In the embodiment of the present application, the first belt transmission member 32 is a gear 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 jointly meshed with a 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 one of the push rods 23 are coaxially fixed with pulleys, the driving motor 31 is located below the mounting plate 21, and all the pulleys are jointly tightly provided with a belt. The first gear set 16 includes two first gears, two second gears and two third gears, the two first gears are coaxially connected with the rotating shafts of the two first material guide plates 12 respectively, the two third gears are coaxially connected with the rotating shafts of the two second material guide plates 14 respectively, and the two second gears are located between a group of first gears and third gears respectively. The second gear is meshed with the first gear and the third gear in the same group, and the two first gears are meshed with each other.

[0100] As shown in FIG. 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 push rods 23 respectively, and the two fifth gears are rotatably connected on the mounting plate 21. The two fifth gears are meshed with each other, and the two fourth gears are meshed with one of the fifth gears respectively.

[0101] The principle of the embodiment of the present application is that the driving assembly 3 drives all the rotating shafts 71 to rotate, the rotating shaft 71 drives the magnetic sleeve roller 72 to rotate, in normal operation, the electromagnetic clutch 5 is disconnected, the working section 721 of the magnetic sleeve roller 72 rotates in the removal box 1 to remove metal, when the working section 721 of the magnetic sleeve roller 72 needs to be cleaned, the electromagnetic clutch 5 is started, the magnetic sleeve roller 72 drives the reciprocating screw 6 to rotate, the working section 721 of the magnetic sleeve roller 72 extends out of the removal box 1, and the standby section 722 of the magnetic sleeve roller 72 extends into the removal box 1.

[0102] When the working section 721 of the magnetic sleeve roller 72 completely extends out of the removal box 1 and the end thereof approaches the nut seat 41, the end of the reciprocating screw 6 is threadedly connected with the nut seat 41, the scraper assembly 8 is started and abuts against the peripheral surface of the magnetic sleeve roller 72, at the same time, the reciprocating screw 6 and the magnetic sleeve roller 72 start to return, the working section 721 of the magnetic sleeve roller 72 gradually extends into the removal box 1, the metal impurities adsorbed on the working section 721 of the magnetic sleeve roller 72 are scraped off by the scraper assembly 8, and the metal impurities on the standby section 722 of the magnetic sleeve roller 72 can be cleaned during daily equipment maintenance.

[0103] By arranging 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, continuous removal and cleaning without shutdown are realized, and the production efficiency is improved.

[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 prolonged.

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

[0106] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within 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: Including the impurity removal box (1), the rotating shaft (71) is arranged in the impurity removal box (1), the both ends of the rotating shaft (71) are respectively out of the impurity removal box (1), the rotating shaft (71) is driven by the driving assembly (3), the rotating shaft (71) is provided with the magnetic sleeve roller (72), and the rotating shaft (71) is slidably connected with the magnetic sleeve roller (72), the magnetic sleeve roller (72) is divided into working section (721) and standby section (722), the side of the impurity removal box (1) away from the driving assembly (3) is provided with a plurality of scraper assemblies (8), the scraper assembly (8) corresponds with the magnetic sleeve roller (72), the end of the magnetic sleeve roller (72) away from the driving assembly (3) is connected with the electromagnetic clutch (5), the electromagnetic clutch (5) is connected with the reciprocating lead screw (6), the reciprocating lead screw (6) is connected with the nut seat (41), the nut seat (41) is fixedly arranged; When the normal production is carried out, the electromagnetic clutch (5) is disconnected, 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 sleeve roller (72) needs to be cleaned, the electromagnetic clutch (5) is started, the working section (721) of the magnetic sleeve roller (72) is out of the impurity removal box (1), and the standby section (722) of the magnetic sleeve roller (72) is inserted into the impurity removal box (1); When the working section (721) of the magnetic sleeve roller (72) moves to the nut seat (41), the scraper assembly (8) is started and adheres to the magnetic sleeve roller (72), until the working section (721) of the magnetic sleeve roller (72) is completely inserted into the impurity removal box (1), and the scraper assembly (8) is away from the magnetic sleeve roller (72).

2. The magnetic impurity removal device for oxygen-absorbing master batch production according to claim 1, characterized by: The side of the impurity removal box (1) away from the driving assembly (3) is provided with a plurality of fixed tables (4), the fixed table (4) corresponds with the nut seat (41) and is fixed, the electromagnetic clutch (5) is slidably connected on the fixed table (4), and the electromagnetic clutch (5) can rotate on the fixed table (4), the first contact sensor (44) is installed on the nut seat (41), and the second contact sensor (45) is installed on the end of the fixed table (4) close to the impurity removal box (1); When the electromagnetic clutch (5) touches the first contact sensor (44), the scraper assembly (8) is started and adheres to the magnetic sleeve roller (72), and 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 impurity removal device for oxygen-absorbing master batch production according to claim 1 or 2, characterized by: 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 oppositely arranged, and a semicircular groove (811) is formed in the side of the scraper plate (81) facing the magnetic sleeve roller (72).

4. The magnetic impurity removal device for oxygen-absorbing master batch production according to claim 1 or 2, characterized by: The magnetic sleeve rollers (72) are arranged in two rows and staggered, and spaces are left between two adjacent magnetic sleeve rollers (72) in the two rows for material to pass through.

5. The magnetic impurity removal device for oxygen absorbing master batch production according to claim 1, characterized by: The driving assembly (3) comprises a driving motor (31) which drives all the rotating shafts (71) to rotate through a first belt transmission member (32).

6. The magnetic impurity removal device for oxygen absorbing master batch production according to claim 1, characterized by: The top of the impurity removal box (1) is provided with a top cover (11), the top cover (11) is provided with a feeding port (111) for feeding material, two first guide plates (12) are hingedly connected in the impurity removal box (1), the two first guide plates (12) are opposite and both are inclined towards the feeding port (111), one end of the two first guide plates (12) away from the feeding port (111) is connected with a first blocking plate (13), one end of the first blocking plate (13) away from the first guide plate (12) is connected with a second guide plate (14), the second guide plate (14) is hingedly connected in the impurity removal box (1), a second blocking plate (15) is further arranged in the impurity removal box (1), the second blocking plate (15) is connected with the second guide plate (14), the second blocking plate (15) and the first blocking plate (13) are located on the same inclined plane, and a space is left between the second guide plate (14) and the side wall of the impurity removal box (1) for material to pass through; The hinging shafts of the first guide plates (12) and the second guide plate (14) are connected through a first gear set (16), the driving assembly (3) is connected with a reciprocating control assembly (2), and the reciprocating control assembly (2) is used to drive the first guide plates (12) and the second guide plate (14) to reciprocate and flip; When the first guide plates (12) are flipped upwards and abut against the top cover (11), the second guide plate (14) abuts against the first blocking plate (13); When the two first guide plates (12) are flipped downwards and abut against each other, the second guide plate (14) is flipped away from the top cover (11).

7. The magnetic impurity removal device for oxygen absorbing master batch production according to claim 6, characterized by: The reciprocating control assembly (2) comprises a reciprocating plate (22), the impurity removal box (1) is fixedly provided with a mounting plate (21), the reciprocating plate (22) is rotationally connected at the center of the mounting plate (21), the reciprocating plate (22) is coaxially connected with the hinging shaft of one first guide plate (12), two guide straight grooves (221) are formed in the reciprocating plate (22) and are symmetrically arranged about the rotation center of the reciprocating plate (22), both ends of the mounting plate (21) are rotationally connected with a lever (23), the lever (23) is rotationally connected with a rolling column (24) perpendicular to the lever (23), the two levers (23) are synchronously rotated through a second gear set (25) and rotate in opposite directions, and the driving assembly (3) drives the second gear set (25) to move through a second belt transmission member (33). The center line of the length direction of the guide straight groove (221) is tangent to the circular motion track of the axis of the rolling column (24) when the reciprocating plate (22) is in a static state, and one of the shift levers (23) is in a vertically downward state, and the other shift lever (23) is in a vertically upward state.

8. The magnetic impurity removal device for oxygen absorbing master batch production according to claim 7, characterized by: The reciprocating plate (22) is provided with a circular arc groove (222) at two corners on one side of the center line of the length direction of the guide straight groove (221), the shift lever (23) is coaxially connected with a sector block (26), the sector block (26) has the same radian as the circular arc groove (222), and the side of the sector block (26) away from the shift lever (23) is perpendicular to the center line of the length direction of the shift lever (23); When one of the rolling columns (24) leaves the guide straight groove (221), the sector block (26) corresponding to the rolling column (24) is just fitted with the circular arc groove (222), and until the other rolling column (24) enters the other guide straight groove (221), the sector block (26) is just away from the circular arc groove (222).

9. The magnetic impurity removal device for oxygen absorbing master batch production according to claim 1, characterized by: The impurity removal box (1) is provided with a plurality of movable holes (17) on both sides, the movable holes (17) on both sides are one-to-one corresponding, the rotating shaft (71) passes through the corresponding two movable holes (17), the inner diameter of the movable hole (17) is greater 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), and the material blocking brush (18) is in contact with the magnetic sleeve roller (72).

10. The magnetic tramp-iron removal device for oxygen absorbing master batch production as claimed in claim 2, wherein: The fixed table (4) is slidably connected with a sliding block (42), the sliding block (42) is provided with two supporting blocks (43), the rotor and the stator of the electromagnetic clutch (5) are provided with an annular groove (51) along the circumferential surface, the supporting blocks (43) are one-to-one corresponding with the annular grooves (51), the supporting blocks (43) are located in the corresponding annular grooves (51), and the magnetic sleeve roller (72) and the rotating shaft (71) are connected through a flat key.

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