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CN-122007334-A - Magnetic separation deironing device that casting sand waste was retrieved

CN122007334ACN 122007334 ACN122007334 ACN 122007334ACN-122007334-A

Abstract

The invention belongs to the technical field of casting, in particular to a magnetic separation iron removal device for recycling casting waste sand, which comprises a conveying belt, wherein the conveying belt is arranged on a frame, the conveying belt is supported and rotated by a driving roller and a magnetic roller, a vibration frame which is in contact with the inner wall of the top of the conveying belt is arranged on the frame, a collision block connected with an air cylinder is arranged below the vibration frame, a split plate which is rotationally connected with the magnetic roller through a torsion spring is arranged on the outer side of the magnetic roller, and the split plate is inclined upwards towards the position close to the axis of the magnetic roller under the normal state. According to the invention, the abnormal working conditions caused by material agglomeration can be accurately identified by comprehensively monitoring the mechanical signals of the impact of the materials at the position of the separating plate and the position signals of the operation of the separating plate through impact dispersion and separation through the separating plate, so that the continuous operation efficiency of the production line and the pertinence of manual maintenance are remarkably improved.

Inventors

  • WANG BINGXUN
  • YIN SHENGMIN
  • WANG DONGXING

Assignees

  • 抚顺亦杰机器有限公司

Dates

Publication Date
20260512
Application Date
20260411

Claims (9)

  1. 1. The magnetic separation iron removal device for recycling the foundry waste sand comprises a conveying belt (2) arranged on a frame (1), wherein the conveying belt (2) is supported and rotated through a driving roller (5) and a magnetic roller (6), and the magnetic separation iron removal device is characterized in that a vibration frame (13) which is in contact with the inner wall of the top of the conveying belt (2) is arranged on the frame (1), a collision block (15) connected with an air cylinder (14) is arranged below the vibration frame (13), a split plate (8) which is rotationally connected through a torsion spring is arranged on the outer side of the magnetic roller (6), and the split plate (8) is obliquely upwards towards the axial center position close to the magnetic roller (6) under the normal state; The top surface of the division plate (8) is provided with a touch panel connected with the pressure sensor; The device is also provided with an angle sensor for monitoring the inclination angle of the dividing plate (8) compared with the inclination angle in the normal state; The control unit acquires signals monitored in real time by the pressure sensor and the angle sensor, performs weighted normalization processing on the variation of the pressure signal and the offset of the angle signal to obtain a judgment index, compares the judgment index with a preset threshold value, and outputs a corresponding early warning signal according to a comparison result.
  2. 2. The magnetic separation iron removal device for casting waste sand recovery according to claim 1, wherein connecting blocks (801) are fixed at two ends of the bottom of the separating plate (8), a fixed seat (12) is fixed on the frame (1), a fixed shaft (121) is arranged at the end part of the fixed seat (12), the connecting blocks (801) are rotationally connected with the outer wall of the fixed shaft (121) through torsion springs, and a gap is reserved between the edge of the separating plate (8) facing the magnetic roller (6) and the conveying belt (2).
  3. 3. The magnetic separation deironing device for casting waste sand recovery according to any one of claims 1 to 2, characterized in that a fixing frame (9) is installed in the middle area of the conveying belt (2), an upper demagnetizer (10) is installed at one end of the top of the fixing frame (9) facing the driving roller (5), and a lower demagnetizer (11) is installed at one end of the bottom of the fixing frame (9) facing the magnetic roller (6).
  4. 4. A magnetic separation deironing device for foundry waste sand recovery according to claim 3, characterized in that, vibration frame (13) and cylinder (14) are all installed on mount (9), the top of vibration frame (13) sets up to the planar structure of elastic material, and the top of vibration frame (13) and the top inner wall sliding contact of conveyer belt (2), and vibration frame (13) set up in the position between last degausser (10) and lower degausser (11), and vibration frame (13) are located the position that is close to last degausser (10).
  5. 5. The magnetic separation deironing device for casting sand waste recovery according to claim 3, wherein an auxiliary dispersing assembly is arranged on one side of the vibration frame (13) close to the magnetic roller (6) on the fixing frame (9), a plurality of mounting cylinders (16) are arranged on the auxiliary dispersing assembly, an upper supporting rod (17) is movably arranged at the top end of each mounting cylinder (16), a lower supporting rod (18) is movably arranged at the bottom end of each mounting cylinder (16), and the ends of the upper supporting rod (17) and the lower supporting rod (18) far away from the mounting cylinders (16) are in contact with the inner wall of the conveying belt (2).
  6. 6. The magnetic separation iron removal device for foundry waste sand recovery according to claim 5, wherein the installation cylinder (16) is sequentially provided with an upper cylinder (161), a middle ring (162) and a lower cylinder (163) from top to bottom, the inner diameter of the middle ring (162) is smaller than the inner diameters of the upper cylinder (161) and the lower cylinder (163), and an upper spring (19) is connected between the bottom end of the upper supporting rod (17) and the top of the middle ring (162).
  7. 7. The magnetic separation iron removal device for foundry waste sand recovery according to claim 6, wherein a force sensor and a displacement sensor are arranged in the upper cylinder (161), the force sensor is used for monitoring the compression force born by the upper spring (19), and the displacement sensor is used for monitoring the compression deformation quantity of the upper spring (19); the control unit synchronously acquires an actual compression force signal monitored by the force sensor and a compression deformation quantity signal monitored by the displacement sensor, calculates a theoretical compression force according to the compression deformation quantity based on a mechanical characteristic model of the spring, and calculates an evaluation index by utilizing the relative deviation degree of the actual compression force and the theoretical compression force.
  8. 8. The magnetic separation iron removal device for foundry waste sand recovery according to claim 7, wherein the control unit is further configured to obtain the judgment index information and the evaluation index information simultaneously, perform weighted fusion calculation on the evaluation index information in the pretreatment stage and the judgment index information in the final separation stage, generate a system-level operation evaluation index, and evaluate the magnetic separation effect in the operation process according to different numerical intervals in which the operation evaluation index is located.
  9. 9. The magnetic separation iron removal device for foundry waste sand recovery according to claim 6, wherein an extension rod (20) is fixed at the bottom end of the upper supporting rod (17), a sliding block (21) is fixed at the bottom end of the extension rod (20), the sliding block (21) is in sliding contact with the inner wall of the lower cylinder (163), and a lower spring (22) is connected between the bottom of the sliding block (21) and the top end of the lower supporting rod (18).

Description

Magnetic separation deironing device that casting sand waste was retrieved Technical Field The invention relates to the technical field of casting, in particular to a magnetic separation iron removal device for recycling casting waste sand. Background In the casting production process, a great amount of used molding sand (such as quartz sand, chromite sand and the like) can form 'used sand' or 'waste sand' containing a plurality of impurities after being poured by high-temperature molten metal, and the metal impurities mixed in the waste sand are generally separated out for recycling. The patent publication No. CN 223465520U's chinese patent discloses a sand-lined metal mold casting technology's sand waste recovery unit, including the conveyer belt, conveyer belt outer wall fixedly connected with mounting panel, the first gear of mounting panel top fixedly connected with, the bottom fixed mounting of mounting panel has the motor, the motor output passes mounting panel fixedly connected with mount pad, rotate on the mount pad and be connected with the lead screw, the lead screw bottom corresponds first gear position department fixedly connected with second gear, the spout has been seted up on the mount pad, the draw-in groove of having seted up the symmetry setting on the mount pad, the inside sliding connection of spout has the lifter plate, equal fixedly connected with fixture block of two draw-in groove position departments are corresponding to the lifter plate. In the prior art, waste sand is generally only put on a conveying belt, and magnetic impurities are separated and recycled through a magnetic attraction assembly or a magnetic roller, but other non-magnetic impurities are often accumulated or aggregated, so that the separation effect of the magnetic impurities can be influenced. Disclosure of Invention Based on the technical problems of the background technology, the invention provides a magnetic separation iron removal device for recycling foundry waste sand. The invention provides a magnetic separation iron removal device for recycling foundry waste sand, which comprises a conveying belt, a driving roller, a magnetic roller, a vibration frame, a collision block, a separation plate, an angle sensor and a control unit, wherein the conveying belt is arranged on a rack, the conveying belt is arranged on the rack and is supported and rotated by the driving roller and the magnetic roller, the vibration frame is arranged on the rack and is contacted with the inner wall of the top of the conveying belt, the collision block is connected with a cylinder and is arranged below the vibration frame, the separation plate is arranged on the outer side of the magnetic roller and is connected with the magnetic roller through a torsion spring in a rotating mode, the separation plate is inclined upwards towards the position close to the axis of the magnetic roller in a normal state, the top surface of the separation plate is arranged to be connected with the pressure sensor, the angle sensor is further arranged for monitoring the inclination angle of the separation plate compared with the pressure sensor in the normal state, the control unit is used for acquiring signals monitored in real time by the pressure sensor and the angle sensor, weighting normalization processing is carried out on the variation of the pressure signals and the offset of the angle signals to obtain a judgment index, the judgment index is compared with a preset threshold, and corresponding early warning signal is output according to a comparison result. Preferably, the connecting blocks are fixed at two ends of the bottom of the partition plate, the fixing base is fixed on the frame, the fixing base end is provided with the fixing shaft, the connecting blocks are rotationally connected with the outer wall of the fixing shaft through torsion springs, and a gap is reserved between the edge of the partition plate facing the magnetic roller and the conveying belt. Preferably, a fixing frame is arranged in the middle area of the conveying belt, an upper demagnetizer is arranged at one end, facing the driving roller, of the top of the fixing frame, and a lower demagnetizer is arranged at one end, facing the magnetic roller, of the bottom of the fixing frame. Preferably, the vibration frame and the air cylinder are both arranged on the fixing frame, the top of the vibration frame is arranged into a plane structure of elastic materials, the top of the vibration frame is in sliding contact with the inner wall of the top of the conveying belt, the vibration frame is arranged at a position between the upper demagnetizer and the lower demagnetizer, and the vibration frame is positioned at a position close to the upper demagnetizer. Preferably, the auxiliary dispersing assembly is arranged at one side of the vibration frame, which is close to the magnetic roller, on the fixing frame, the auxiliary dispersing assembly is provided with a plurality of mounti