C-PVC electric sleeve cutting waste recovery device

Abstract

The invention provides a C-PVC electric sleeve cutting waste recycling device, and belongs to the technical field of waste smashing and recycling. The device comprises a rack, a multi-stage linkage crushing mechanism and a magnetic attraction sorting mechanism are sequentially arranged on the rack from top to bottom, and the multi-stage linkage crushing mechanism comprises a crushing box primary crushing section, a fine crushing section and a fine crushing section; the fine crushing section comprises two crushing plates, a driving motor, a transmission shaft, an eccentric wheel and two connecting rods, the two crushing plates are oppositely mounted in the crushing box in parallel, and conical crushing holes distributed in a matrix manner are uniformly distributed in the upper surface of each crushing plate; the fixed crushing plate and the sliding crushing plate are adopted, and are driven by the eccentric wheel and the connecting rod to do high-frequency small-stroke reciprocating linear motion; and when the sliding crushing plate moves towards the fixed plate, the distance between the two plates is continuously reduced, strong extrusion force is generated on waste materials located between the two plates, and efficient extrusion crushing and accurate granularity control of the materials can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste crushing and recycling, and in particular to a C-PVC power sleeve cutting waste recycling device. BACKGROUND

[0002] C-PVC (chlorinated polyvinyl chloride) power sleeve is a protective pipe material commonly used in power engineering, which has the characteristics of corrosion resistance, high temperature resistance, good insulation performance, and high mechanical strength, and is mainly used to protect cable lines from external environment (such as mechanical damage, chemical corrosion, high temperature, etc.); Its production process usually includes raw material preparation, batching mixing, extrusion molding, cooling and shaping, traction cutting, quality detection and packaging into warehouse, etc. In the traction cutting step, a cutting machine is generally used to cut the pipe material, but a large amount of irregular-shaped and special-material waste will be generated during the cutting process, which needs to be crushed and recycled by a crusher. In the field of waste pipe recycling, efficient crushing and fine grinding are key links to realize resource recycling. With the improvement of environmental protection requirements and the development of circular economy, higher requirements are put forward for the uniformity of the particle size of the crushed waste pipe material, the fine particle size, and the energy consumption control of the crushing process. In the prior art, most crushing equipment adopts a multi-stage crushing and screening combination method to realize the gradual refinement of the material through the synergistic effect of different crushing components, but in actual application, there are still problems of insufficient crushing efficiency, low particle size control precision, and high energy consumption. In addition, the traditional crushing plate structure mostly adopts fixed gap or simple reciprocating motion, and lacks dynamic adjustment ability of crushing force, which leads to the situation that the material is not completely crushed or overground in the fine crushing process, and cannot meet the high-precision particle size control requirement.

[0003] According to the related technology in the above, the inventor believes that the existing device has the defect that the waste is not completely crushed or overground when crushing. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a C-PVC power sleeve cutting waste recycling device.

[0005] The C-PVC power sleeve cutting waste recycling device provided by the present application adopts the following technical scheme: The utility model provides a kind of C-PVC power sleeve cutting waste recovery device, including rack, the rack is equipped with multiple stages linkage crushing mechanism and magnetic attraction sorting mechanism from top to bottom in turn, the multiple stages linkage crushing mechanism includes crushing box and is located in the primary crushing section, fine crushing section and fine crushing section from top to bottom in turn in the crushing box, the top of the crushing box is equipped with feed inlet, and the bottom is equipped with discharge outlet in the position opposite to the magnetic attraction sorting mechanism;The fine crushing section includes two crushing plates, drive motor being equipped in the bottom of one of the crushing plates, transmission shaft being connected to the output shaft of the drive motor, eccentric wheel being connected to the transmission shaft and two connecting rods, two crushing plates are oppositely parallelly installed in crushing box, and the upper surface of each crushing plate is evenly distributed in matrix distribution conical crushing hole;The crushing plate located above drive motor is slidably connected with the inner wall of the crushing box, two connecting rods are hingedly connected with each other, one end is hingedly connected with the side away from the center of eccentric wheel, and the other end is hingedly connected with the sliding block at the bottom of sliding crushing plate.

[0006] By adopting the above technical scheme, a fixed crushing plate and a sliding crushing plate are used, and high-frequency small-stroke reciprocating linear motion is carried out under the drive of eccentric wheel and connecting rod;When the sliding crushing plate moves towards the fixed plate, the distance between the two plates is continuously reduced, a strong extrusion force is generated on the waste located between the two plates, efficient extrusion crushing and accurate particle size control of the material can be realized.

[0007] Preferably, the primary crushing section is composed of two rotating groups arranged oppositely, each rotating group includes two roller cylinders arranged at intervals, one end of each roller cylinder is rotatably connected to the inner wall of the crushing box, and the other end is connected to a rotating motor, and the two roller cylinders in each rotating group rotate towards each other;The fine crushing section is composed of a rotating crushing disc and a plurality of blades arranged on the upper surface of the rotating crushing disc, the bottom center of the rotating crushing disc is connected to a drive shaft, the rotating crushing disc is inclined, and the drive shaft is connected to a rotating motor.

[0008] By adopting the above technical scheme, multiple crushing sections are designed to realize the crushing of waste, which is cut and crushed at multiple angles, and finally crushed into fine particles.

[0009] Preferably, trapezoidal coarse teeth are evenly distributed on the outer wall of the roller cylinder, and each trapezoidal coarse tooth is arranged in a row along the axial direction of the roller cylinder, and adjacent two rows of trapezoidal coarse teeth are staggered.

[0010] By adopting the above technical scheme, trapezoidal coarse teeth are arranged to increase the gripping force of the roller cylinder, so that the waste is preliminarily crushed into large pieces under the gripping and pulling action of the coarse teeth of the roller cylinder.

[0011] Preferably, an inclined guide plate is arranged between the primary crushing section and the fine crushing section, the top of the inclined guide plate is arranged at one side of the discharge port of the rotating group, the bottom extends above the central position of the rotating crushing disc, and the back of the inclined guide plate is provided with a vibration motor.

[0012] By adopting the above technical scheme, the inclined guide plate is used to ensure that the waste can smoothly fall into the next crushing stage by gravity.

[0013] Preferably, a C-PVC waste collection box is arranged at the discharge port of the magnetic separation mechanism, the C-PVC waste collection box is used to store the crushed waste; the magnetic separation mechanism comprises a sorting conveyor arranged below the multi-stage linkage crushing mechanism and a suction disc array arranged above the sorting conveyor, the suction disc array comprises a plurality of electromagnetic suction discs arranged in a rectangular array, and the arrangement direction of the electromagnetic suction discs is perpendicular to the conveying direction of the sorting conveyor.

[0014] By adopting the above technical scheme, the combination of the suction disc array composed of electromagnetic suction discs with adjustable magnetic field strength and the sorting conveyor realizes automatic and efficient separation of metal impurities and C-PVC waste, and reduces the workload and error of manual separation.

[0015] Preferably, a driving sprocket is arranged on the output shaft of one of the rotating motors, a driven sprocket is arranged on the output shaft of the sorting motor of the sorting conveyor, the driving sprocket and the driven sprocket are connected by a chain, one side of the sliding block is connected with a trigger protrusion, one side of the trigger protrusion is provided with a trigger rod, the middle part of the trigger rod is arranged on the inner wall of the crushing box, one end of the trigger rod is arranged opposite to the trigger protrusion, and the other end is provided with a trigger switch in the rotating path, and a return spring is connected between the side of the trigger rod close to the trigger protrusion and the inner wall of the crushing box.

[0016] By adopting the above technical scheme, the synchronous driving of the roller and the sorting conveyor can be realized by the transmission of the driving sprocket and the driven sprocket, that is, the sorting conveyor is synchronously or delayed rotated when the primary crushing section works; and the triggering of the electromagnetic suction disc is realized by the trigger protrusion and the trigger rod, the linkage of the two is realized, so that the magnetic separation can be realized in time.

[0017] Preferably, the electromagnetic suction discs are arranged in two layers in the up-down direction, the electromagnetic suction discs in each layer are arranged in a linear array, each electromagnetic suction disc in the lower layer is close to the sorting conveyor, the magnetic field strength of each electromagnetic suction disc in the lower layer is greater than that of each electromagnetic suction disc in the upper layer, and the sorting conveyor is inclined downward along the conveying direction.

[0018] By adopting the above technical scheme, different metal impurities can be adsorbed by adopting the double-layer electromagnetic suction disc with different magnetic field strengths, and the sorting conveying belt is inclined, so that the material can slide downward along the conveying belt under the action of gravity.

[0019] Preferably, the suction disc array further comprises a fixed support arranged on the rack, a moving guide rail arranged on the top of the fixed support and perpendicular to the conveying direction of the sorting conveying belt, two moving sliders slidingly connected to the moving guide rail, lifting driving members respectively connected to the moving sliders, lifting guide blocks connected to the bottom of the lifting driving members, two connecting plates arranged in an upper and lower spaced manner between the two lifting guide blocks, and a metal waste collection box arranged on one side of the sorting conveying belt, each electromagnetic suction disc is arranged on the two connecting plates, the connecting plates are arranged above the sorting conveying belt, and the length direction of the connecting plates is parallel to the length direction of the moving guide rail.

[0020] By adopting the above technical scheme, the height of the electromagnetic suction disc is raised by the lifting driving member, and after the electromagnetic suction disc is raised to a height higher than that of the metal waste collection box, the electromagnetic suction disc is moved above the metal waste collection box by the moving guide rail, then the power supply of the electromagnetic suction disc is turned off, and the metal impurities fall into the collection box, thereby realizing the recycling of the metal impurities.

[0021] Preferably, a flow guide baffle is arranged above the sorting conveying belt near the discharge port of the sorting conveying belt.

[0022] By adopting the above technical scheme, the flow guide baffle is arranged to guide the path, regulate the speed and calibrate the direction of the C-PVC waste that is not adsorbed by the electromagnetic suction disc.

[0023] Preferably, an inclination sensor is arranged on the rotating shaft, a first gear is sleeved on the rotating shaft, the first gear is meshingly connected with a second gear, the second gear is sleeved on the output shaft of an adjusting motor, and the adjusting motor is arranged on the cross beam of the rack.

[0024] By adopting the above technical scheme, the angle of the flow guide baffle is adjusted by the adjusting motor and the two gears, so that the included angle between the flow guide baffle and the horizontal plane is within a predetermined angle range.

[0025] In summary, the present application has at least one of the following beneficial technical effects: 1. The present application adopts a fixed crushing plate and a sliding crushing plate, and under the drive of an eccentric wheel and a connecting rod, performs high-frequency small-stroke reciprocating linear motion; when the sliding crushing plate moves towards the fixed plate, the distance between the two plates continuously decreases, and a strong extrusion force is generated on the waste located between the two plates, so that efficient extrusion crushing and accurate particle size control of the material can be realized.

[0026] 2. The present application designs multi-stage crushing section for realizing the crushing of waste materials, so as to cut and crush them at multiple angles, and finally crush them into fine particles as required. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of a C-PVC power sleeve cutting waste recycling device of the present application.

[0028] Figure 2 is a sectional view of a C-PVC power sleeve cutting waste recycling device of the present application.

[0029] Figure 3 is a sectional view of a crushing box of the present application.

[0030] Figure 4 is Figure 3 is an enlarged view of A in FIG.

[0031] Figure 5 is a partial sectional view of a C-PVC power sleeve cutting waste recycling device of the present application.

[0032] Figure 6 is a structural schematic view of a magnetic sorting mechanism of the present application.

[0033] Figure 7 is a structural schematic view of a roller of the present application.

[0034] Figure 8 is a structural schematic view of a rotary crushing disc of the present application.

[0035] Figure 9 is a structural schematic view of a rotary shaft of the present application.

[0036] Explanation of reference signs: 1, rack; 2, multi-stage linkage crushing mechanism; 21, crushing box; 22, feeding port; 23, discharging port; 24, primary crushing section; 241, roller; 242, rotating motor; 243, trapezoidal coarse tooth; 25, fine crushing section; 251, rotating crushing disc; 252, blade; 253, drive shaft; 254, rotating motor; 26, inclined guide plate; 27, vibration motor; 28, fine crushing section; 281, crushing plate; 282, conical crushing hole; 283, eccentric wheel; 284, transmission shaft; 285, drive motor; 286, connecting rod; 287, shape memory alloy sheet; 288, rotating block; 3, magnetic separation mechanism; 31, sorting conveyor belt; 32, suction cup array; 33, fixed support; 34, moving guide rail; 35, moving slider; 36, lifting drive; 37, lifting guide block; 38, connecting plate; 39, metal waste collection box; 40, guide optical axis; 4, C-PVC waste collection box; 5, flow guide baffle; 6, rotating shaft; 7, first gear; 8, second gear; 9, adjusting motor; 10, driving sprocket; 11, driven sprocket; 12, chain; 13, trigger protrusion; 14, trigger lever; 15, trigger switch; 16, return spring. DETAILED DESCRIPTION

[0037] The following will be described in detail in combination with the accompanying drawings. Figures 1-9 The present application is further described in detail.

[0038] The present application discloses a C-PVC power sleeve cutting waste recovery device. Figures 1-9 , including a rack 1, the rack 1 is sequentially provided with a multi-stage linkage crushing mechanism 2 and a magnetic separation mechanism 3 from top to bottom, the multi-stage linkage crushing mechanism 2 includes a crushing box 21 and a primary crushing section 24, a fine crushing section 25 and a fine crushing section 28 sequentially arranged in the crushing box 21 from top to bottom, the top of the crushing box 21 is provided with a feeding port 22, and the bottom is provided with a discharging port 23 opposite to the magnetic separation mechanism 3; the fine crushing section 28 includes two crushing plates 281, a drive motor 285 arranged at the bottom of one of the crushing plates 281, a transmission shaft 284 connected to the output shaft of the drive motor 285, an eccentric wheel 283 connected to the transmission shaft 284, and two connecting rods 286, the two crushing plates 281 are installed in parallel in the crushing box 21, and the upper surfaces of the crushing plates 281 are uniformly distributed in a matrix of conical crushing holes 282; the crushing plate 281 above the drive motor 285 is slidably connected with the inner wall of the crushing box 21, the two connecting rods 286 are hingedly connected to each other, one end is hingedly connected to the side away from the center of the eccentric wheel 283, and the other end is hingedly connected to the sliding block 288 arranged at the bottom of the crushing plate 281.

[0039] In this embodiment, a fine crushing section 28 is provided for grinding the waste into fine particles, such as crushing 5-10 mm particles into fine particles below 1-2 mm. The fine crushing section 28 adopts a structure of opposed crushing plates 281. Two crushing plates 281 are installed in parallel in the fine crushing section 28. The crushing plates 281 are made of high-strength alloy steel plates, and the plate surfaces are covered with matrix-distributed conical crushing holes 282. The large end diameter of the conical holes is 0.4 cm, the small end diameter is 0.2 cm, and the hole spacing is 1 cm. One of the crushing plates 281 is fixed as a fixed plate on the inner wall of the crushing box 21, and the other crushing plate 281 is connected to the inner wall of the crushing box 21 as a movable plate and is driven to slide by an eccentric mechanism. In operation, the movable plate performs high-frequency small-stroke reciprocating linear motion under the drive of the eccentric mechanism and connecting rod 286. When the movable plate moves towards the fixed plate, the distance between the two plates is continuously reduced, generating a strong extrusion force on the waste located between the two plates. In this process, the waste is subjected to a vertical pressure perpendicular to the plate surface, forcing the waste to move towards the conical crushing holes 282. As the movable plate moves, the extrusion force gradually increases, and when the two plates approach, the extrusion force reaches a peak. At this time, the waste not only receives a vertical pressure, but also receives a lateral pressure from the hole wall due to the contraction structure of the conical crushing holes 282. This lateral pressure and vertical pressure work together to tightly press the waste into the conical crushing holes 282, and when the waste passes through the area with gradually decreasing hole diameter, the waste is sheared to achieve the crushing effect.

[0040] Specifically, the inner wall of each conical crushing hole 282 is embedded with a shape memory alloy sheet 287, which is shaped to match the shape of the conical crushing hole 282. The bottom of the shape memory alloy sheet 287 is connected to an SMA driving device. By heating the SMA (warming up to 60°C by electrification), the small end hole diameter is reduced, such as from 0.2 cm to 0.1 cm (fine crushing mode), or restored to 0.2 cm (coarse crushing mode).

[0041] In some embodiments, referring to Figures 2-3The multi-stage linkage crushing mechanism 2 comprises a crushing box 21 and a primary crushing section 24 and a fine crushing section 25 arranged in the crushing box 21 in sequence from top to bottom, the top of the crushing box 21 is provided with a feeding port 22, and the bottom is provided with a discharging port 23 at a position opposite to the sorting conveying belt 31; the primary crushing section 24 is composed of two rotating groups arranged oppositely, each rotating group comprises two roller cylinders 241 arranged at intervals, one end of each roller cylinder 241 is rotatably connected to the inner wall of the crushing box 21, and the other end is connected to a rotating motor 242 respectively, and the two roller cylinders 241 in each rotating group rotate towards each other; the fine crushing section 25 is composed of a rotary crushing disc 251 and a plurality of blades 252 arranged on the upper surface of the rotary crushing disc 251, the bottom center of the rotary crushing disc 251 is connected to a driving shaft 253, and the rotary crushing disc 251 is arranged obliquely, and the driving shaft 253 is connected to a rotary motor 254.

[0042] In the embodiment, the multi-stage crushing section is designed to realize the crushing of waste materials; the primary crushing section 24 is equipped with two groups of roller cylinders 241 rotating towards each other, and the rotating speed ratio of the two groups of roller cylinders 241 is 1.2:1, the tearing force is generated by differential rotation to preliminarily crush the large pieces of waste materials, the fine crushing section 25 is installed with the rotary crushing disc 251 provided with blades 252, and the rotary crushing disc 251 is arranged obliquely, so that the waste materials are cut and crushed at multiple angles during falling.

[0043] Specifically, the two groups of roller cylinders 241 are driven by independent rotating motors 242 to realize the opposite rotation of the two groups of roller cylinders 241. The rotating speed of the motor 9 can be flexibly adjusted by the frequency converter, and the rotating speed ratio of the two groups of roller cylinders 241 is fixed at 1.2:1; in addition, a screw nut adjusting device is arranged at the bearing seat at both ends of the roller cylinder 241, the screw rod is driven to rotate by manually rotating the adjusting hand wheel, and then the nut moves axially along the screw rod, so that the distance between the roller cylinders 241 can be accurately adjusted within the range of 10-50mm to meet the preliminary crushing requirements of waste materials of different sizes.

[0044] Specifically, the rotating breaker 251 is inclined to the horizontal direction by an angle of 15-20°. The angle is designed to enable the waste to contact the blades on the rotating breaker 251 more fully during falling. The blades are serrated blades, which increase the number of breaking times and the breaking effect. When the rotating breaker 251 rotates at a high speed (300 r / min), the serrated blades 252 cut the waste at multiple angles. Due to the inclined installation of the breaker, the waste moves spirally downward along the surface of the breaker under the joint action of gravity and centrifugal force, collides with and is cut by the serrated blades multiple times, and is further broken into smaller particles, such as 5-10 mm particles from 30-50 mm blocks. In addition, since the rotating breaker 251 is inclined to the horizontal direction by an angle of 15-20°, an inclined cutting surface is formed when the rotating breaker 251 rotates. The waste moves downward along the inclined direction of the rotating breaker 251 under the action of gravity and centrifugal force. Therefore, the discharge port 23 is generally arranged at a position lower than the low end of the inclined angle of the rotating breaker 251, so that the waste can smoothly fall into the next breaking zone or the discharge channel after being cut.

[0045] In some embodiments, referring to Figure 2 , Figure 7 The trapezoidal rough teeth 243 are uniformly distributed on the outer wall of the roller 241 and arranged in rows along the axial direction of the roller 241. Adjacent two rows of trapezoidal rough teeth 243 are staggered.

[0046] The trapezoidal rough teeth 243 are arranged in the embodiment to increase the gripping force of the roller 241. When the C-PVC power sleeve cutting waste enters the primary breaking zone from the feeding port 22, the two groups of rough tooth rollers 241 rotating towards each other and having a speed difference generate a strong tearing force. The waste is preliminarily broken into large blocks under the gripping and pulling action of the rough teeth of the roller 241. In addition, the trapezoidal rough teeth 243 are staggered on the surface of the roller 241, with a tooth height of 3-5 cm and a tooth spacing of 2-3 cm.

[0047] In some embodiments, referring to Figure 8 The blades 252 are spirally distributed along the circumferential direction of the rotating breaker 251, and the rotating breaker 251 is provided with a protective cover.

[0048] In the embodiment, the serrated blades are spirally distributed and generate an axial thrust in the spiral direction when rotating, so as to realize multiple collisions and cutting of the waste with the blades during rotation and increase the breaking effect of the waste. In addition, an arc-shaped protective baffle is arranged outside the breaker to prevent the waste from splashing during breaking.

[0049] In some embodiments, referring to Figure 2, the inclined guide plate 26 is arranged between the primary crushing section 24 and the fine crushing section 25, the top of the inclined guide plate 26 is arranged at one side of the discharge port of the rotating group, the bottom extends above the central position of the rotary crushing disc 251, and the back of the inclined guide plate 26 is provided with a vibration motor 27.

[0050] In the embodiment, the inclined guide plate 26 is arranged to ensure that the waste can smoothly fall into the next crushing stage by gravity, and the angle between the inclined guide plate 26 and the horizontal plane is generally 30°-60°. The vibration motor 27 is installed at the back of the inclined guide plate 26, which can prevent the material from adhering and accumulating by high-frequency vibration (for example, the frequency is 20-50 Hz), and is especially suitable for wet or sticky materials.

[0051] In some embodiments, referring to Figures 1-2 , the discharge port of the magnetic separation mechanism 3 is provided with a C-PVC waste collection box 4, which is used for storing the crushed waste; the magnetic separation mechanism 3 includes a sorting conveyor belt 31 arranged below the multi-stage linkage crushing mechanism 2 and a suction cup array 32 arranged above the sorting conveyor belt 31, the suction cup array 32 includes a plurality of electromagnetic suction cups arranged in a rectangular array, and the arrangement direction of the electromagnetic suction cups is perpendicular to the conveying direction of the sorting conveyor belt 31.

[0052] In the embodiment, the suction cup array 32 composed of electromagnetic suction cups with adjustable magnetic field strength is combined with the sorting conveyor belt 31 to realize automatic and efficient separation of metal impurities and C-PVC waste, thereby reducing the workload and error of manual separation (at present, the waste after pipe cutting contains recyclable magnetic metal, for specific content, please refer to the patent with the application number “202421474566.3”); during work, the waste first enters the multi-stage linkage crushing mechanism 2 for gradual crushing, and then enters the sorting conveyor belt 31, when the waste passes below the suction cup array 32, the electromagnetic suction cups adjust the magnetic field strength according to the preset program to adsorb the metal impurities in the waste, and the C-PVC waste not adsorbed continues to move forward along the sorting conveyor belt 31 and falls into the collection box from the discharge port corresponding to the C-PVC waste collection box, thereby realizing automatic separation of metal impurities and C-PVC waste.

[0053] Specifically, photoelectric sensors are installed at key positions of the conveyor belt to monitor the conveying state and position of the waste in real time, when blockage or abnormality occurs, the sensor feeds back signals to the control system, the control system automatically adjusts the running speed of the conveyor belt or stops the equipment running to avoid faults and ensure the continuity and stability of the waste recycling process.

[0054] In some embodiments, referring to Figures 3-5The output shaft of one of the rotating motors 242 is sleeved with a driving sprocket 10, the sorting motor output shaft of the sorting conveyor belt 31 is sleeved with a driven sprocket 11, and the driving sprocket 10 and the driven sprocket 11 are connected through a chain 12; one side of the sliding block 288 is connected with a trigger protrusion 13, one side of the trigger protrusion 13 is provided with a trigger rod 14, the middle part of the trigger rod 14 is on the inner wall of the crushing box 21, one end of the trigger rod 14 is arranged opposite to the trigger protrusion 13, and the other end is provided with a trigger switch 15 in a rotating path, and a reset spring 16 is connected between the side of the trigger rod 14 close to the trigger protrusion 13 and the inner wall of the crushing box 21.

[0055] In the embodiment, the driving sprocket 10 and the driven sprocket 11 are arranged to realize the synchronous driving of the rotating motor and the sorting conveyor belt 31, the transmission ratio of the two sprockets can realize the delayed start of the sorting conveyor belt 31, the delay time is the time for the waste to pass through the primary crushing section 24, the fine crushing section 25 and the fine crushing section 28, that is, the waste after crushing is started after falling on the sorting conveyor belt 31; the trigger protrusion 13 and the trigger rod 14 are used to drive the electromagnetic suction cup, since the trigger protrusion 13 moves linearly back and forth, the trigger protrusion 13 and the trigger rod 14 will be in intermittent contact, when the trigger protrusion 13 and the trigger rod 14 are in contact, the trigger rod 14 will be given a rotating force, the rotation of the trigger rod 14 will trigger the trigger switch 15, the trigger switch 15 is connected with the power supply circuit of the electromagnetic suction cup, when the trigger switch 15 is started, the electromagnetic suction cup is powered on, and the magnetic separation is started, after the force on the trigger rod 14 disappears, the reset spring 16 drives the trigger rod 14 to rotate back to the original position, and waits for the next contact.

[0056] In some embodiments, referring to Figure 1 , Figure 2 , Figure 6 , the electromagnetic suction cups are arranged in two layers in the up-down direction, the electromagnetic suction cups in each layer are arranged in a linear array, the electromagnetic suction cups in the lower layer are close to the sorting conveyor belt 31, the magnetic field strength of the electromagnetic suction cups in the lower layer is greater than that of the electromagnetic suction cups in the upper layer, and the sorting conveyor belt 31 is inclined downward along the conveying direction.

[0057] In the embodiment, the electromagnetic suction cups are arranged in two layers, and the magnetic strengths of the two layers are different, the upper layer adopts a low magnetic field strength, such as 50-100 mT, the installation height is 10-15 cm away from the surface of the conveying belt, and is used for absorbing large metals, such as iron wire and bolt, the lower layer adopts a high magnetic field strength, such as 100-200 mT, the installation height is 5-8 cm away from the surface of the conveying belt, and is used for capturing small metal particles, such as iron filings and metal debris, so as to realize the graded absorption; in the working process, the electromagnetic suction cups in the upper layer are powered on first, are used for absorbing large metals, after a predetermined time, the electromagnetic suction cups in the upper layer are powered off, the electromagnetic suction cups in the lower layer are powered on, and are used for absorbing small metal particles.

[0058] In addition, since the larger metal piece has a relatively larger volume and surface area, the contact area with the electromagnetic chuck is also larger, according to the magnetic field force formula F = 1 / 2 x μ0 x H 2 S (where F is the magnetic field force, μ0 is the vacuum permeability, H is the magnetic field strength, and S is the contact area of the metal piece with the magnetic field), in the case of a larger contact area S, even if the magnetic field strength H is low, sufficient magnetic field force can be generated to achieve adsorption, for example, the upper electromagnetic chuck is set to a magnetic field strength of 0.3-0.6T, and for an iron wire with a surface area of several square centimeters, the weight and friction can be overcome to achieve adsorption; however, larger metal pieces have a large mass, and if a strong magnetic field is used for adsorption, the metal piece may be adsorbed too tightly, making it difficult to separate from the chuck during unloading, resulting in sticking and affecting sorting efficiency. Using a lower magnetic field strength can ensure adsorption and facilitate unloading, allowing the metal piece to fall smoothly into the collection box; smaller metal particles (such as rust and metal debris) have a small volume and mass, and the contact area with the chuck is extremely small, so if a low magnetic field strength is used, the magnetic field force generated may not be sufficient to overcome the weight and friction, and the lower electromagnetic chuck is set to a magnetic field strength of 0.8-1.2T, according to the above magnetic field force formula, in the case of a smaller contact area S, the adsorption force on the tiny particles can be significantly increased by increasing the magnetic field strength H, ensuring that they are effectively adsorbed; and the lower electromagnetic chuck is installed close to the surface of the conveyor belt, and in close proximity, a strong magnetic field can form a more concentrated magnetic field line distribution, generating a stronger attractive force on tiny particles, and tiny particles are more easily adsorbed due to their low mass under the action of a strong magnetic field, and will not be difficult to unload due to excessive adsorption force.

[0059] Specifically, the sorting conveyor belt 31 is designed to be inclined at an angle of 25°, and the material slides downward along the conveyor belt by gravity; in addition, the electromagnetic chuck needs to vertically downwardly adsorb metal impurities during the downward sliding of the material, so its layout should cover the entire width of the conveyor belt, i.e. all the chucks are arranged side by side along the width direction of the conveyor belt, forming a "row" of chuck groups, and when the material slides from back to front (i.e. the conveying direction of the sorting conveyor belt 31, with the discharge port side being the front and the inlet port side being the rear), it passes under the upper and lower chucks in turn and is adsorbed in stages.

[0060] Specifically, a weight sensor can be arranged on the sorting conveyor belt 31 to monitor the weight of the materials on the conveyor belt in real time, and the density of the materials is identified by a camera to monitor the sorting effect, and the magnetic field strength and the adsorption height of the electromagnetic suction cup are controlled according to the detected data; in addition, a water cooling pipe is arranged around the electromagnetic coil in the electromagnetic suction cup, and the cooling liquid is circulated by a micro pump to keep the temperature of the coil below 60°C, so as to avoid the attenuation of the magnetic field due to overheating; at the same time, six electromagnetic suction cups are selected for the upper layer, and eight electromagnetic suction cups are selected for the lower layer, and the upper and lower layers are arranged in a vertical and stacked manner perpendicular to the surface of the conveyor belt, that is, the upper and lower suction cups are completely aligned in the transverse position, forming a "magnetic field column" structure, which enhances the adsorption force of the metal impurities in the vertical path, for example, the distance between the upper layer and the lower layer is 5 cm, and the size of the upper layer suction cup is larger than that of the lower layer suction cup, for example, the size of the upper layer electromagnetic suction cup is 10 cm x 20 cm, and the size of the lower layer electromagnetic suction cup is 8 cm x 15 cm, and the spacing between adjacent electromagnetic suction cups is preferably 5 cm.

[0061] In some embodiments, referring to Figure 6 , the suction cup array 32 further comprises a fixed support 33 arranged on the rack 1, a moving guide rail 34 arranged on the top of the fixed support 33 and perpendicular to the conveying direction of the sorting conveyor belt 31, two moving sliders 35 slidably connected to the moving guide rail 34, lifting driving members 36 respectively connected to the two moving sliders 35, lifting guide blocks 37 connected to the bottom of the lifting driving members 36, two connecting plates 38 arranged in an upper and lower spaced manner between the two lifting guide blocks 37, and a metal waste collection box 39 arranged on one side of the sorting conveyor belt 31, each electromagnetic suction cup is arranged on the two connecting plates 38, the connecting plates 38 are arranged above the sorting conveyor belt 31, and the length direction of the connecting plates 38 is parallel to the length direction of the moving guide rail 34.

[0062] In this embodiment, the lifting driving member 36 is arranged to adjust the height of the electromagnetic suction cup, so that it rises above the height of the metal waste collection box 39, and then moves to above the metal waste collection box 39 through the moving guide rail 34, then the power of the electromagnetic suction cup is turned off, and the metal impurities fall into the collection box, thereby realizing the recycling of the metal impurities and simplifying the unloading process.

[0063] Specifically, the lifting driving member 36 is an electric telescopic rod or an electric push rod, which is used to drive the electromagnetic suction cups on the two connecting plates 38 to rise and fall synchronously through the lifting guide blocks 37, wherein the electric telescopic rod or the electric push rod is internally provided with a magnetostrictive displacement sensor to upload the height data of the suction cup in real time; a level meter is installed on the top of the metal waste collection box 39, and an alarm is triggered when the level reaches a predetermined value, for example, 80%; electromagnetic proximity switches can be installed on both sides of the sorting conveyor belt 31 to detect the material positioning signal, and the suction cup excitation is triggered after reaching the predetermined position.

[0064] In some embodiments, referring to Figure 6The two guide light shafts 40 are arranged below the lifting guide block 37, and the axis of the guide light shaft 40 is opposite to the axis of the guide hole on the lifting guide block 37.

[0065] In the embodiment, the guide light shaft 40 is arranged to limit the lifting guide block 37 and limit the moving track, which can not only stabilize the lifting guide block 37, but also ensure the vertical lifting. In addition, the upper and lower ends of the guide light shaft 40 can be provided with photoelectric limit switches for limiting and double stroke protection.

[0066] In some embodiments, referring to Figure 1 , Figure 2 , Figure 9 The diversion baffle 5 is arranged above the sorting conveyor belt 31 near the discharge port of the sorting conveyor belt 31 and is arranged on the cross beam of the rack 1 through a rotating shaft 6.

[0067] In the embodiment, the diversion baffle 5 is arranged to guide the path, regulate the speed and calibrate the direction of the C-PVC waste that is not attracted by the electromagnetic chuck, so as to ensure that the waste accurately falls into the C-PVC waste collection box at the tail. Since the C-PVC waste collection box at the end of the sorting conveyor belt 31 is usually located directly below or at the tail of the conveyor belt, and the waste has a horizontal initial speed when moving with the conveyor belt, if it directly falls from the end of the conveyor belt, it may be thrown out of the collection box range due to inertia (especially when running at high speed). Therefore, the diversion baffle needs to be arranged to guide the flow, which can control the falling point within the range of ±100mm of the center of the collection box.

[0068] Specifically, the diversion baffle 5 is arranged 200mm above the end of the sorting conveyor belt 31 and 200-300mm away from the end of the conveyor belt, and the length covers the full width of the sorting conveyor belt 31, and the two sides exceed the belt edge by 50mm to place the edge material leakage. The diversion baffle 5 is arranged at an angle with the horizontal plane, such as 45°-60°, which can convert the horizontal movement of the waste into a parabolic motion downward at an angle, so as to accurately align the trajectory with the entrance of the collection box. In addition, the C-PVC waste collection box 4 is provided with a weighing sensor at the bottom, which triggers a box changing signal when full.

[0069] In some embodiments, referring to Figure 1 , Figure 2 , Figure 9 The rotating shaft 6 is provided with an inclination sensor, and the rotating shaft 6 is sleeved with a first gear 7, the first gear 7 is connected with a second gear 8 in meshing connection, the second gear 8 is sleeved on the output shaft of an adjusting motor 9, and the adjusting motor 9 is arranged on the cross beam of the rack 1.

[0070] In the embodiment, the adjusting motor 9 and the two gears are used to adjust the angle of the diversion baffle 5, so that the angle between the diversion baffle 5 and the horizontal plane is within a predetermined angle range.

[0071] Specifically, the bottom of the flow guide baffle 5 can be provided with sawtooth-shaped flow guide teeth to enhance the guidance of the material, and the installation shaft is preferably located at 1 / 3 of the height of the flow guide baffle 5 to ensure the balance of the upper and lower flow guide areas; the two ends of the rotating shaft 6 are fixed on the cross beam of the rack 1 through the bearing seat, and the first gear 7 and the second gear 8 are driven to rotate by adjusting the motor 9, thereby driving the rotating shaft 6 to rotate and realizing the adjustment of the angle of the flow guide baffle 5.

[0072] The working principle of the C-PVC power sleeve cutting waste recycling device in the application is as follows: after the waste enters the feeding port 22 of the crushing box 21, it is first torn and crushed into small pieces by the coarse-toothed roller 241 in the primary crushing zone, and then further crushed into fine particles under the cutting of the sawtooth blade of the rotating crushing disc 251 in the fine crushing zone. Next, the waste enters the fine crushing section, in which the moving plate moves in high-frequency small-stroke reciprocating linear motion under the drive of the eccentric mechanism and the connecting rod 286. When the moving plate moves towards the fixed plate, the distance between the two plates continuously decreases, generating a strong extrusion force on the waste between the two plates. In this process, the waste is subjected to a vertical pressure, forcing it to move towards the tapered crushing hole 282. As the moving plate moves, the extrusion force gradually increases, reaching a peak when the two plates are close. At this time, the waste is not only subjected to vertical pressure, but also subjected to lateral pressure from the wall of the tapered crushing hole 282 due to the tapered structure of the hole. The combined action of the lateral pressure and the vertical pressure tightly presses the waste into the tapered crushing hole 282 and shears the waste when it passes through the area with gradually decreasing hole diameter, achieving the crushing effect. Then, the waste enters the sorting conveyor belt 31. When the waste passes under the array of suction cups 32, the electromagnetic suction cups adjust the magnetic field strength according to the preset program to attract the metal impurities in the waste. Then, the lifting drive 36 drives the connecting plate 38 to move upwards to a height higher than that of the metal waste collection box 39 through the lifting guide block 37, moves to above the metal waste collection box 39 through the moving guide rail 34, and then turns off the power of the electromagnetic suction cups. The metal impurities fall into the collection box, while the C-PVC waste that is not attracted continues to move forward along the sorting conveyor belt 31 and falls into the collection box from the discharge port corresponding to the C-PVC waste collection box.

[0073] The above are preferred embodiments of the application, but do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A C-PVC power-sleeve cutting waste recycling device, characterized in that: The application relates to a multi-stage linkage crushing mechanism and a magnetic separation mechanism, and belongs to the field of crushing equipment.

2. The C-PVC power sleeve cutting waste recycling device according to claim 1, characterized in that: The primary crushing section (24) is composed of two rotating groups which are oppositely arranged, each rotating group comprises two roller cylinders (241) which are arranged at intervals, one end of each roller cylinder (241) is rotationally connected to the inner wall of the crushing box (21), and the other end is connected to a rotating motor (242), and the two roller cylinders (241) in each rotating group rotate towards each other; the fine crushing section (25) is composed of a rotating crushing disc (251) and a plurality of blades (252) arranged on the upper surface of the rotating crushing disc (251), the bottom center of the rotating crushing disc (251) is connected to a driving shaft (253), and the rotating crushing disc (251) is arranged obliquely, and the driving shaft (253) is connected to a rotating motor (254).

3. The C-PVC power sleeve cutting waste recycling device according to claim 2, characterized in that: The outer wall of the roller cylinder (241) is uniformly provided with trapezoidal coarse teeth (243), each trapezoidal coarse tooth (243) is arranged in a row along the axial direction of the roller cylinder (241), and adjacent two rows of trapezoidal coarse teeth (243) are arranged at intervals.

4. The C-PVC power sleeve cutting waste recycling device according to claim 3, characterized in that: An inclined guide plate (26) is arranged between the primary crushing section (24) and the fine crushing section (25), the top of the inclined guide plate (26) is arranged on one side of the discharge port of the rotating group, the bottom of the inclined guide plate (26) extends above the center of the rotating crushing disc (251), and a vibrating motor (27) is arranged on the back of the inclined guide plate (26).

5. The C-PVC power-sleeve cutting waste recycling device according to claim 4, characterized in that: The discharge port of the magnetic attraction sorting mechanism (3) is provided with a C-PVC waste collection box (4) for storing the crushed waste; the magnetic attraction sorting mechanism (3) comprises a sorting conveyor belt (31) arranged below the multi-stage linkage crushing mechanism (2) and a suction disc array (32) arranged above the sorting conveyor belt (31); the suction disc array (32) comprises a plurality of electromagnetic suction discs arranged in a rectangular array, and the arrangement direction of the electromagnetic suction discs is perpendicular to the conveying direction of the sorting conveyor belt (31).

6. The C-PVC power-sleeve cutting waste recycling device according to claim 5, characterized in that: The output shaft of one of the rotating motors (242) is sleeved with a driving sprocket (10), the output shaft of the sorting conveyor belt (31) is sleeved with a driven sprocket (11), and the driving sprocket (10) and the driven sprocket (11) are connected by a chain (12); one side of the sliding block (288) is connected with a trigger protrusion (13), one side of the trigger protrusion (13) is provided with a trigger rod (14), the middle part of the trigger rod (14) is on the inner wall of the crushing box (21), one end of the trigger rod (14) is arranged opposite to the trigger protrusion (13), and the other end is provided with a trigger switch (15) in the rotating path, and the side of the trigger rod (14) close to the trigger protrusion (13) is connected with the reset spring (16) between the inner wall of the crushing box (21).

7. The C-PVC power-sleeve cutting waste recycling device according to claim 6, characterized in that: The electromagnetic suction discs are arranged in two layers in the up-down direction, each layer of electromagnetic suction discs is arranged in a linear array, each electromagnetic suction disc in the lower layer is close to the sorting conveyor belt (31), the magnetic field strength of each electromagnetic suction disc in the lower layer is greater than that of each electromagnetic suction disc in the upper layer, and the sorting conveyor belt (31) is inclined downward along the conveying direction.

8. The C-PVC power-sleeve cutting waste recycling device according to claim 7, characterized in that: The suction disc array (32) further comprises a fixed support (33) arranged on the rack (1), a moving guide rail (34) arranged on the top of the fixed support (33) and perpendicular to the conveying direction of the sorting conveyor belt (31), two moving sliding blocks (35) slidably connected to the moving guide rail (34), lifting driving members (36) respectively connected to the moving sliding blocks (35), lifting guide blocks (37) connected to the bottom of the lifting driving members (36), two connecting plates (38) arranged in an up-down interval between the two lifting guide blocks (37), and a metal waste collection box (39) arranged on one side of the sorting conveyor belt (31), each electromagnetic suction disc is arranged on the two connecting plates (38), the connecting plates (38) are arranged above the sorting conveyor belt (31), and the length direction of the connecting plates (38) is parallel to the length direction of the moving guide rail (34).

9. The C-PVC power-sleeve cutting waste recycling device according to claim 8, characterized in that: A flow guide baffle (5) is arranged above the sorting conveyor belt (31) close to the discharge port thereof, and the flow guide baffle (5) is arranged on the cross beam of the rack (1) through a rotating shaft (6).

10. The C-PVC power-sleeve cutting waste recycling device according to claim 9, characterized in that: The rotating shaft (6) is provided with an inclination sensor, and the rotating shaft (6) is sleeved with a first gear (7), the first gear (7) is connected with a second gear (8) in meshing connection, the second gear (8) is sleeved on the output shaft of an adjusting motor (9), and the adjusting motor (9) is arranged on the cross beam of the rack (1).

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