Recycled plastic recovery device

Abstract

The invention discloses a recycled plastic recycling device, and relates to the technical field of recycled plastic production, the recycled plastic recycling device comprises an equipment box, a plastic bottle guiding and conveying assembly is installed in the side end of the equipment box, and an annular electric control rotating guide rail drives an adjusting swing arm to rotate slowly under the cooperation of a bottle processing assembly; the laser sensor at the bottom end of the adjusting swing arm and the laser emitter work synchronously, emitted laser beams conduct 360-degree laser cutting around the bottle opening, the miniature electromagnetic lifting rod drives the bottle head electric clamping piece to descend, the cut bottle opening is accurately clamped, the situation that the granularity of plastic particles is not uniform due to excessive breaking is avoided, and the service life of the bottle opening is prolonged. And under the cooperation of the vacuum guiding and conveying chamber, the microwave drying chamber and the ultrasonic cleaning chamber, cleaning and drying of the plastic particles are ensured, high-quality raw materials are provided for subsequent granulation, the forming quality of the regenerated plastic particles is improved, the defective rate is reduced, the production efficiency is improved, and the requirement for large-scale industrial production is met.

Description

Technical Field

[0001] The invention relates to the technical field of recycled plastic production, in particular to a recycled plastic recycling device. Background Art

[0002] World resources are always a hot topic for human beings. The slogan of saving resources and protecting the environment has gradually penetrated into people's hearts. Plastics will not rot even if buried underground for hundreds of years. Therefore, the awakening of recycling and reusing recycled materials is inevitable. Only in this way can people truly achieve environmental protection and energy saving through the recycling of resources. Recycled plastics are the reuse of plastics. After the mechanical blade crushing operation, the plastics are reused. Recycled plastics refer to plastic raw materials obtained after processing waste plastics by physical or chemical methods such as pretreatment, melt granulation, and modification. It is the reuse of plastics. Recycled plastics and granulated plastics have broad prospects, turning waste into treasure, and the products (plastic granules) are widely sold. The price of recycled materials is cheap, and plastic companies have a large demand.

[0003] At present, in the use of recycled plastic recycling equipment, the plastic bottles are directly processed by crushing equipment for recycling. However, the hardness of the bottleneck end and the bottle body of the plastic bottle is different, resulting in that some harder bottleneck parts are not easy to be crushed during the crushing of the plastic bottle, while the bottle body is relatively soft and easily over-crushed, resulting in uneven particle size of the crushed plastic particles, with large particles (bottleneck parts that are not fully crushed) and small particles (fragments produced by excessive crushing of the bottle body) coexisting. The uneven particle size will lead to loose fusion between the particles, affecting the quality of the recycled plastic particles. When contacting with the harder bottleneck part, the friction and impact force are greater, which is easy to cause local wear of the tool. Therefore, it is necessary to propose a recycled plastic recycling device. Summary of the invention

[0004] The purpose of the present invention is to provide a recycled plastic recycling device to solve the problem proposed in the above-mentioned background technology that in the process of using the recycled plastic recycling device, the plastic bottles are directly processed by crushing equipment for recycling, but the bottleneck end and the bottle body of the plastic bottle have different hardnesses, resulting in that during the crushing of the plastic bottle, some harder bottleneck parts are not easy to be crushed, while the bottle body is relatively soft and easily over-crushed, resulting in uneven particle size of the crushed plastic particles, and the coexistence of large particles (bottleneck parts that are not fully crushed) and small particles (fragments produced by excessive crushing of the bottle body). The uneven particle size will lead to loose fusion between the particles, affecting the quality of the recycled plastic particles. When contacting with the harder bottleneck part, the friction and impact force are greater, which can easily cause the problem of local wear of the tool.

[0005] To achieve the above object, the present invention provides the following technical solution: a recycled plastic recycling device, comprising an equipment box, a plastic bottle guiding assembly is installed inside the side end of the equipment box, and a bottle processing assembly is installed inside the groove on the side end surface of the equipment box; The bottle processing assembly comprises two groups of electric telescopic rods, the two groups of electric telescopic rods are installed inside the sides of the slots, the side ends of the two groups of electric telescopic rods are installed with soft movable clamps, the top inner wall surface of the slots is installed with a transverse linear screw, the side end of the transverse linear screw is connected to the frame surface and is fastened with a rotating motor adjustment box, the bottom of the rotating motor adjustment box is installed with a movable shaft arm, the side end of the movable shaft arm is installed with a clamp, the bottom end of the transverse linear screw is slidably connected with a sliding seat, the bottom of the sliding seat is installed with a short-distance adjustment sliding guide rail, the bottom end of the short-distance adjustment sliding guide rail is installed with an annular electric-controlled rotating guide rail, the outer circumference of the annular electric-controlled rotating guide rail is slidably connected with an adjustment swing arm, the bottom end of the adjustment swing arm is connected with a laser transmitter through a laser sensor, the bottom of the annular electric-controlled rotating guide rail is installed with a bottle mouth inner expansion position calibration piece, the side end of the bottle mouth inner expansion position calibration piece is installed with a miniature electromagnetic lifting rod, and the bottom of the miniature electromagnetic lifting rod is fastened with a bottle head electric clamp.

[0006] Preferably, the plastic bottle guiding assembly comprises a feed arc slot frame, a slow slot frame is installed on the side end of the feed arc slot frame, a rotating frame is installed on the side end of the slow slot frame, a rotating slot is opened on the surface of the rotating frame, and a rotator is rotatably connected inside the rotating slot.

[0007] Preferably, a turning turntable is installed at the side end of the rotator, and the turning turntable is located inside the turntable to form a rotation connection. A track arc column rod is installed at the top edge of the turntable, and a plastic bottle body is slidably connected inside the track arc column rod.

[0008] Preferably, a first crushing structure is installed at the bottom of the side end of the equipment box, a second crushing structure is installed inside the side end of the equipment box, the hardness and sharpness of the internal crushing gears of the second crushing structure are smaller than those of the first crushing structure, a frequency conversion gear set is installed at the side ends of the first and second crushing structures, an electromagnetic blocker and a synchronous pulley are installed outside the side ends of the frequency conversion gear set, and a PLC controller is installed on the surface of the equipment box.

[0009] Preferably, the bottom end of the first crushing structure is connected to a discharge guide groove, the bottom end of the second crushing structure is connected to a vertical guide groove, and the side ends of the discharge guide groove and the vertical guide groove are both connected to an ion cleaning box.

[0010] Preferably, the side end of the ion cleaning box is connected to a bucket lifting structure, and the top of the side end of the bucket lifting structure is connected to a discharge trough.

[0011] Preferably, the side end of the discharge trough is connected to an ultrasonic cleaning chamber, the side end of the ultrasonic cleaning chamber is connected to a microwave drying chamber, and the side end of the microwave drying chamber is connected to a vacuum guide chamber.

[0012] Preferably, the bottom of the side end of the vacuum guide chamber is connected to a spiral distribution guide chamber, and the side end of the spiral distribution guide chamber is connected to a driving energy-saving motor through a speed regulator, and the output end of the driving energy-saving motor is connected to a spiral flow channel granulator.

[0013] Preferably, a gas-liquid dual-cooling circulation granulation cooling structure is installed at the bottom of the spiral flow channel granulator, and a particle guiding monitoring structure is connected to the left output end of the spiral flow channel granulator, and the side end of the particle guiding monitoring structure is connected to a cooling circulation cavity.

[0014] Preferably, a support frame is fastened to the bottom of the cooling circulation chamber, a pressure monitor is installed on the top of the cooling circulation chamber, and a side end of the cooling circulation chamber is connected to an output grain end.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, with the cooperation of the bottle processing assembly, two groups of electric telescopic rods receive the signal of the control system and start to stretch, driving the soft movable clamping parts to approach the two sides of the plastic bottle to complete the initial positioning and prevent the bottle from shaking in the subsequent processing. Then, the transverse linear screw is driven by the motor and drives the sliding seat and the parts connected thereunder to move laterally to the top of the bottle mouth area according to the screw nut pair transmission principle. Then, the bottle mouth inner expansion position calibration part is lowered under the instruction of the PLC controller to expand and fix the inside of the bottle mouth. At the same time, the annular electric control rotating guide rail drives the adjusting swing arm to rotate slowly. The laser sensor at the bottom of the adjusting swing arm works synchronously with the laser transmitter. The emitted laser beam performs 360-degree laser cutting around the bottle mouth, and the bottle head electric clamping part is driven to descend by the micro electromagnetic lifting rod to accurately clamp the cut bottle mouth, thereby avoiding the uneven particle size of plastic particles caused by excessive crushing, ensuring the quality of recycled plastic particles, and reducing local wear of the tool.

[0016] 2. In the present invention, the plasma cleaning of the ion cleaning box utilizes the high chemical activity of active ions in the plasma through the cooperation of the vacuum guide chamber, the microwave drying chamber and the ultrasonic cleaning chamber, and can decompose organic and inorganic impurities that are difficult to remove by conventional cleaning methods. The ultrasonic cavitation effect of the ultrasonic cleaning chamber impacts the impurities from a physical level, and the microwave heating of the microwave drying chamber achieves rapid drying from the perspective of heat generation from the vibration of water molecules, thereby ensuring the cleanliness and drying of the plastic particles, providing high-quality raw materials for subsequent granulation, improving the molding quality of recycled plastic particles, reducing the defective rate, and improving production efficiency, so as to meet the needs of large-scale industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of a recycled plastic recycling device of the present invention; Figure 2 It is a schematic structural diagram of a side view of a recycled plastic recycling device of the present invention; Figure 3 This is a schematic diagram of the installation position structure of a plastic bottle guide assembly in a recycled plastic recycling device of the present invention; Figure 4 It is a structural schematic diagram of a plastic bottle guiding assembly in a recycled plastic recycling device of the present invention; Figure 5 It is a structural schematic diagram of a bottle processing assembly in a recycled plastic recycling device of the present invention; Figure 6 A recycled plastic recycling device according to the present invention Figure 5 A schematic diagram of the enlarged structure at point A; Figure 7 This is a schematic diagram of the installation position structure of a bucket-type lifting structure in a recycled plastic recycling device of the present invention; Figure 8 The present invention is a schematic diagram of the installation position structure of a spiral flow channel granulator and a gas-liquid dual-cooling circulation granulator cooling structure in a recycled plastic recovery device.

[0018] In the figure: 1. Equipment box; 2. PLC controller; 3. Vacuum guide chamber; 4. Microwave drying chamber; 5. Ultrasonic cleaning chamber; 6. Driving energy-saving motor; 7. Spiral distribution guide chamber; 8. Spiral flow channel granulator; 9. Gas-liquid dual cold circulation granulation cooling structure; 10. Support frame; 11. Cooling circulation cavity; 12. Pellet guide monitoring structure; 13. Plastic bottle guide assembly; 130. Feed arc slot frame; 131. Slow slot frame; 132. Rotating frame; 133. Rotating slot; 134. Rotator; 135. Turning rotating frame; 136. Track arc column rod; 137. Plastic bottle body; 14. Bottle processing assembly; 140. Electric Telescopic rod; 141, soft movable clamping part; 142, horizontal linear lead screw; 143, rotating motor adjustment box; 144, movable shaft arm; 145, short-distance adjustment sliding guide rail; 146, annular electric-controlled rotating guide rail; 147, adjustment swing arm; 148, laser transmitter; 149, bottle mouth inner expansion position calibration part; 1490, micro electromagnetic lifting rod; 1491, bottle head electric clamping part; 15, first crushing structure; 16, frequency conversion gear set; 17, synchronous pulley; 18, second crushing structure; 19, vertical guide groove; 20, ion cleaning box; 21, discharge guide groove; 22, discharge trough; 23, bucket lifting structure. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: In the present invention, referring to Figure 1 - Figure 8 As shown: a recycled plastic recycling device, comprising an equipment box 1, a plastic bottle guiding component 13 is installed inside the side end of the equipment box 1, and a bottle processing component 14 is installed inside the groove on the side end surface of the equipment box 1; The bottle handling assembly 14 includes two sets of electric telescopic rods 140, which are installed inside the sides of the slots. Soft movable clamps 141 are installed on the side ends of the two sets of electric telescopic rods 140. A transverse linear screw 142 is installed on the inner wall surface of the top end of the slot. The side end of the transverse linear screw 142 is connected to the surface of the frame and is tightly connected to a rotating motor adjustment box 143. A movable shaft arm 144 is installed at the bottom of the rotating motor adjustment box 143. A clamp is installed on the side end of the movable shaft arm 144. A sliding seat is slidably connected to the bottom of the transverse linear screw 142. The bottom of the sliding seat is installed A short-distance adjustment sliding guide rail 145 is installed, and an annular electrically-controlled rotating guide rail 146 is installed at the bottom end of the short-distance adjustment sliding guide rail 145. An adjusting swing arm 147 is slidably connected to the outer circumference of the annular electrically-controlled rotating guide rail 146. The bottom end of the adjusting swing arm 147 is connected to a laser transmitter 148 via a laser sensor. A bottle mouth inward expansion position calibration component 149 is installed at the bottom of the annular electrically-controlled rotating guide rail 146. A miniature electromagnetic lifting rod 1490 is installed at the side end of the bottle mouth inward expansion position calibration component 149. The bottom of the miniature electromagnetic lifting rod 1490 is fastened with a bottle head electric clamp 1491.

[0021] In a specific scheme, the recycled plastic bottle body 137 is placed near the feed port at the side end of the equipment box 1, and enters from the feed arc slot frame 130, so that the plastic bottle guide component 13 is started, and the plastic bottles are transported one by one in an orderly manner to the position of the bottle processing component 14. At this time, the two sets of electric telescopic rods 140 receive the signal of the control system and begin to extend, driving the soft movable clamping parts 141 to approach the two sides of the plastic bottle, and use the flexibility and friction of soft materials (such as rubber, silicone, etc.) to gently and firmly clamp the middle of the plastic bottle body to complete the initial positioning to prevent the bottle from shaking during subsequent processing. Then, the transverse linear screw 142 is driven by the motor and drives the sliding seat and the parts connected thereto to move horizontally to the top of the bottle mouth area according to the screw nut pair transmission principle. Then, the bottle mouth internal expansion position calibration part 149 is lowered under the instruction of the PLC controller 2 to expand and fix the inside of the bottle mouth, and at the same time, The annular electrically-controlled rotating guide rail 146 drives the adjusting swing arm 147 to rotate slowly. The laser sensor at the bottom of the adjusting swing arm 147 works synchronously with the laser transmitter 148. The emitted laser beam performs 360-degree laser cutting around the bottle mouth, and drives the bottle head electric clamp 1491 to descend through the micro electromagnetic lifting rod 1490 to accurately clamp the cut bottle mouth. Secondly, the motor in the rotating motor adjustment box 143 is operated to drive the movable shaft arm 144 to rotate, and adjust the angle of its side end clamp to align it with the cut bottle body for clamping. After the bottle mouth is processed, the rotating motor adjustment box 143 drives the movable shaft arm 144 to drive the clamp to rotate the plastic bottle at high speed and move it to the inside of the second crushing structure 18. The bottle mouth internal expansion position calibration part 149 and the bottle head electric clamp 1491 drive the cut bottle head to move to the first crushing structure 15 with the cooperation of the transverse linear screw 142 for crushing.

[0022] Embodiment 2: In the present invention, according to Figure 1 - Figure 4 As shown, the plastic bottle guiding assembly 13 includes a feed arc slot frame 130, a slow slot frame 131 is installed on the side end of the feed arc slot frame 130, a rotating frame 132 is installed on the side end of the slow slot frame 131, a rotating slot 133 is opened on the surface of the rotating frame 132, and a rotator 134 is rotatably connected inside the rotating slot 133.

[0023] A turning frame 135 is installed at the side end of the rotator 134, and the turning frame 135 is located inside the rotating frame 132 to form a rotating connection. A track arc column rod 136 is installed at the top edge of the rotating frame 132, and a plastic bottle body 137 is slidably connected inside the track arc column rod 136.

[0024] In a specific solution, the recycled plastic bottles are placed in batches on the feed arc trough rack 130. The feed arc trough rack 130 is set according to the material flow principle, and its arc structure fits the bottom contour of the plastic bottles, so that the plastic bottles can be arranged naturally and orderly, and slowly roll towards the slow trough rack 131 under the action of gravity. The slow trough rack 131 further slows down the sliding speed of the plastic bottles by setting an appropriate slope and a buffer structure (such as a rubber damping strip), and adjusts the posture of the bottles so that they enter the rotating rack 132 more regularly. When the plastic bottles enter the rotating rack 132, the rotator 134 located inside the rotating groove 133 starts to work, so that the rotator 134 is driven by a stepper motor, and according to the gear transmission principle, it drives the turning rotating rack 135 to rotate slowly inside the rotating rack 12, so that the rotation angle and speed of the turning rotating rack 135 are controlled by The PLC controller 2 precisely controls and captures the current posture of the plastic bottle, so that when it is detected that the bottle is in a bottle mouth facing downward or tilted state, the rotator 134 will drive the turning turntable 135 to rotate a certain angle according to the preset program, so that the bottle is gradually adjusted to the ideal posture with the bottle mouth facing upward, preparing for the subsequent precise guiding. While the turning turntable 135 adjusts the bottle posture, the track arc column rod 136 plays a key role, so that the plastic bottle body 137 slides slowly along the track arc column rod 136 under the synergistic effect of its own gravity and the slight vibration of the rotating frame 132 (caused by the vibration motor at the bottom of the rotating frame 132). The arc track of the track arc column rod 136 is precisely designed and optimized according to the size of the plastic bottle, the center of gravity distribution and the required discharge direction, to ensure that the plastic bottle can accurately slide to the predetermined receiving position of the bottle processing component 14.

[0025] Embodiment 3: In the present invention, according to Figure 1 - Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, a first crushing structure 15 is installed at the bottom of the side end of the equipment box 1, a second crushing structure 18 is installed inside the side end of the equipment box 1, the hardness and sharpness of the internal crushing gears of the second crushing structure 18 are smaller than those of the first crushing structure 15, a frequency conversion gear set 16 is installed at the side ends of the first crushing structure 15 and the second crushing structure 18, an electromagnetic blocker and a synchronous pulley 17 are installed outside the side end of the frequency conversion gear set 16, and a PLC controller 2 is installed on the surface of the equipment box 1.

[0026] The bottom end of the first crushing structure 15 is connected to a discharge guide groove 21 , the bottom end of the second crushing structure 18 is connected to a vertical guide groove 19 , and the side ends of the discharge guide groove 21 and the vertical guide groove 19 are both connected to an ion cleaning box 20 .

[0027] The side end of the ion cleaning box 20 is connected to a bucket lifting structure 23 , and the top of the side end of the bucket lifting structure 23 is connected to a discharge trough 22 .

[0028] The side end of the discharge trough 22 is connected to the ultrasonic cleaning chamber 5 , the side end of the ultrasonic cleaning chamber 5 is connected to the microwave drying chamber 4 , and the side end of the microwave drying chamber 4 is connected to the vacuum guide chamber 3 .

[0029] The bottom of the side end of the vacuum guide chamber 3 is connected to a spiral distribution guide chamber 7, and the side end of the spiral distribution guide chamber 7 is connected to a driving energy-saving motor 6 through a speed regulator, and the output end of the driving energy-saving motor 6 is connected to a spiral flow channel granulator 8.

[0030] A gas-liquid dual-cooling circulation granulation cooling structure 9 is installed at the bottom of the spiral flow channel granulator 8. A particle guiding monitoring structure 12 is connected to the left output end of the spiral flow channel granulator 8. The side end of the particle guiding monitoring structure 12 is connected to a cooling circulation chamber 11.

[0031] The bottom of the cooling circulation chamber 11 is fastened with a support frame 10 , a pressure monitor is installed on the top of the cooling circulation chamber 11 , and a side end of the cooling circulation chamber 11 is connected to an output grain end.

[0032] In a specific solution, the bottle body enters the first crushing structure 15, and the bottle head enters the second crushing structure 18, wherein the first crushing structure 15 is composed of high-strength and high-hardness crushing gears, and the crushing gears of the second crushing structure 18 are less hard and sharp than the first crushing structure 15, wherein the first crushing structure 15 uses the mechanical crushing principle to drive the motor to drive the variable frequency gear set 16 to rotate at a high speed, and perform strong coarse crushing on the plastic material, and quickly decompose the large pieces of plastic into smaller pieces, which are discharged through the discharge guide groove 21 under the action of gravity, and the second crushing structure 18 is convenient for fine crushing of the relatively small plastic fragments that have been initially crushed, avoiding excessive crushing, and generating plastic particles with more uniform particle size. The particles are discharged through the vertical guide groove 19. In this process, the frequency conversion gear set 16 adjusts the start of the first crushing structure 15 and the second crushing structure 18 in real time according to the instruction of the PLC controller 2. Then, the plastic particles of uniform particle size discharged from the discharge guide groove 21 and the vertical guide groove 19 enter the ion cleaning box 20 respectively, so that the ion cleaning box 20 uses plasma technology to ionize the gas through a high-voltage electric field to generate plasma. The active ions in the plasma react chemically with impurities such as dirt, oil, and microorganisms on the surface of the plastic particles to decompose and peel them off to achieve deep cleaning. The cleaned plastic particles are gathered in the bucket lifting structure 23, so that the bucket lifting structure 23 drives the bucket to circulate through the chain according to the mechanical transmission principle, and the plastic particles are lifted. The plastic particles are lifted to the discharge trough 22, and the plastic particles transported by the discharge trough 22 enter the ultrasonic cleaning chamber 5. The ultrasonic cleaning chamber 5 uses the cavitation effect of ultrasound to generate a large number of tiny bubbles in the cleaning liquid. The strong impact force generated by the instantaneous rupture of the bubbles acts on the surface of the plastic particles to further remove residual impurities, especially some tiny particles attached. Then, the plastic particles enter the microwave drying chamber 4. The microwave drying chamber 4 uses the microwave heating principle to make the water molecules inside the plastic particles vibrate violently and generate heat through friction under the action of microwaves, and quickly vaporize and evaporate to achieve efficient drying. At the same time, the problem of overheating and deformation of the plastic surface that may be caused by traditional heating methods is avoided. After that, the dried plastic particles enter the vacuum guide chamber 3. The vacuum guide chamber 3 uses air to heat the plastic particles in a vacuum environment. The pressure difference transports the plastic particles to the spiral distribution guide chamber 7 smoothly and quickly, reducing the risk of the plastic particles coming into contact with the air and re-absorbing impurities. When the plastic particles are in the spiral distribution guide chamber 7, under the coordinated action of the driving energy-saving motor 6 and the speed regulator, according to the principle of spiral transportation, they are evenly pushed to the spiral flow channel granulator 8. The unique spiral flow channel design inside the spiral flow channel granulator 8 makes the pressure and temperature of the plastic melt evenly distributed during the flow process, and it is extruded from the die to form regular and high-quality plastic particles. At the same time, the extruded particles immediately enter the gas-liquid double-cooling circulation granulation cooling structure 9, where the cold air first quickly takes away the heat on the surface of the particles, preliminarily shaping them, and then spraying the atomized coolant, deep cooling and solidification, to ensure the stability of the internal structure of the particles.The pellet guiding monitoring structure 12 is used to monitor the pellet forming quality, such as particle size and roundness, in real time, and the data is fed back to the PLC controller 2, so that the PLC controller 2 adjusts the working parameters of the spiral flow channel pelletizer 8 and the cooling structure 9 according to the feedback information to ensure the stability of the pelletizing quality. After that, the cooling circulation cavity 11 provides circulating coolant for the cooling process, and the pressure monitor monitors the pressure in the cavity in real time to ensure the safe and stable operation of the cooling system, and finally the formed recycled plastic pellets are discharged from the output pellet end.

[0033] The wiring diagram of the driving energy-saving motor 6, the gas-liquid dual-cooling circulation granulation cooling structure 9, the rotating motor adjustment box 143, the laser emitter 148 and the laser sensor in the present invention belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the driving energy-saving motor 6, the gas-liquid dual-cooling circulation granulation cooling structure 9, the rotating motor adjustment box 143, the laser emitter 148 and the laser sensor are no longer explained in detail.

[0034] The method of use and working principle of the device are as follows: first, plastic bottles are placed in batches on the feed arc trough rack 130. The feed arc trough rack 130 is set according to the material flow principle, and its arc structure fits the bottom contour of the plastic bottles, so that the plastic bottles can be arranged naturally and orderly, and slowly roll to the slow trough rack 131 under the action of gravity. The slow trough rack 131 further slows down the sliding speed of the plastic bottles by setting appropriate slopes and buffer structures (such as rubber damping strips), and adjusts the posture of the bottles so that they enter the rotating rack 132 more regularly. When the plastic bottles enter the rotating rack 132, the rotator 134 located inside the rotating groove 133 starts to work, so that the rotator 134 is driven by a stepper motor, and according to the gear transmission principle, it drives the turning rotating rack 135 on the rotating rack The turning frame 135 rotates slowly inside, so that the turning angle and speed of the turning frame 135 are accurately controlled by the PLC controller 2 to capture the current posture of the plastic bottle. When it is detected that the bottle is in a bottle mouth downward or tilted state, the rotator 134 will drive the turning frame 135 to rotate a certain angle according to the preset program, so that the bottle is gradually adjusted to an ideal posture with the bottle mouth upward, in preparation for subsequent precise guidance. While the turning frame 135 adjusts the bottle posture, the track arc column rod 136 plays a key role, so that the plastic bottle body 137 slides slowly along the track arc column rod 136 under the synergistic effect of its own gravity and the slight vibration of the rotating frame 132 (by the vibration motor at the bottom of the rotating frame 132). The arc track of the track arc column rod 136 is precisely designed according to the plastic bottle body. The size, center of gravity distribution and required discharge direction of the bottle are optimized to ensure that the plastic bottle can slide accurately to the predetermined receiving position of the bottle processing component 14. At this time, the two sets of electric telescopic rods 140 receive the signal of the control system and begin to extend, driving the soft movable clamping parts 141 to approach the two sides of the plastic bottle, and use the flexibility and friction of soft materials (such as rubber, silicone, etc.) to gently and firmly clamp the middle of the plastic bottle body to complete the initial positioning to prevent the bottle from shaking during subsequent processing. Then, the transverse linear screw 142 is driven by the motor and drives the sliding seat and the parts connected thereto to move horizontally to the top of the bottle mouth area according to the transmission principle of the screw nut pair. Then, the bottle mouth inner expansion position calibration part 149 is made to perform the next step under the instruction of the PLC controller 2. The inside of the bottle mouth is expanded and fixed by descending, and at the same time, the annular electrically controlled rotating guide rail 146 drives the adjusting swing arm 147 to rotate slowly. The laser sensor at the bottom of the adjusting swing arm 147 works synchronously with the laser transmitter 148, and the emitted laser beam performs 360-degree laser cutting around the bottle mouth, and drives the bottle head electric clamp 1491 to descend through the micro electromagnetic lifting rod 1490 to accurately clamp the cut bottle mouth. Secondly, the motor in the rotating motor adjustment box 143 is operated to drive the movable shaft arm 144 to rotate, and adjust the angle of its side end clamping piece to align it with the cut bottle body for clamping. After the bottle mouth is processed, the rotating motor adjustment box 143 drives the movable shaft arm 144 to drive the clamping piece to rotate the plastic bottle at high speed, and move it to the inside of the second crushing structure 18.The bottle mouth inner expansion position calibration part 149 and the bottle head electric clamping part 1491 drive the cut bottle head to move to the first crushing structure 15 in cooperation with the transverse linear screw rod 142 for crushing. Then the bottle body enters the first crushing structure 15, and the bottle head enters the second crushing structure 18, wherein the first crushing structure 15 is composed of high-strength and high-hardness crushing gears, and the hardness and sharpness of the crushing gears of the second crushing structure 18 are less than the first crushing structure 15. The first crushing structure 15 uses the mechanical crushing principle to make the motor drive the variable frequency gear set 16 to rotate at a high speed, so as to perform strong coarse crushing on the plastic material, and quickly decompose the large pieces of plastic into smaller pieces, which are discharged through the discharge guide groove 21 under the action of gravity, and the second crushing structure 18 is used for the crushing of the plastic material. The structure 18 facilitates fine crushing of relatively small plastic fragments that have undergone preliminary crushing, avoids over-crushing, and generates plastic particles with more uniform particle sizes. The finely crushed particles are discharged through the vertical guide groove 19. In this process, the frequency conversion gear set 16 adjusts the start-up of the first crushing structure 15 and the second crushing structure 18 in real time according to the instructions of the PLC controller 2. Then, the plastic particles of uniform particle sizes discharged from the discharge guide groove 21 and the vertical guide groove 19 enter the ion cleaning box 20 respectively, so that the ion cleaning box 20 uses plasma technology to ionize the gas through a high-voltage electric field to generate plasma. The active ions in the plasma react chemically with impurities such as dirt, oil, and microorganisms on the surface of the plastic particles to decompose and peel them off, thereby achieving deep cleaning and cleaning. The plastic particles are gathered to the bucket lifting structure 23, so that the bucket lifting structure 23 drives the hopper to circulate through the chain according to the mechanical transmission principle, and lifts the plastic particles to the discharge slot 22. The plastic particles transported by the discharge slot 22 enter the ultrasonic cleaning chamber 5. The ultrasonic cleaning chamber 5 uses the cavitation effect of ultrasound to generate a large number of tiny bubbles in the cleaning liquid. The strong impact force generated by the instantaneous rupture of the bubbles acts on the surface of the plastic particles to further remove residual impurities, especially some tiny particles attached. Then, the plastic particles enter the microwave drying chamber 4. The microwave drying chamber 4 uses the microwave heating principle to make the water molecules inside the plastic particles vibrate violently and generate heat through friction under the action of microwaves, so that they are quickly vaporized and evaporated, thereby achieving efficient drying and avoiding the problems of traditional heating methods. The plastic surface may be overheated and deformed due to the method. After that, the dried plastic particles enter the vacuum guide chamber 3. Under the vacuum environment, the vacuum guide chamber 3 uses the air pressure difference to smoothly and quickly transport the plastic particles to the spiral distribution guide chamber 7, reducing the risk of the plastic particles coming into contact with the air and re-adsorbing impurities. When the plastic particles are in the spiral distribution guide chamber 7, under the coordinated action of the energy-saving motor 6 and the speed regulator, according to the principle of spiral transportation, they are evenly pushed to the spiral flow channel granulator 8. The unique spiral flow channel design inside the spiral flow channel granulator 8 makes the pressure and temperature of the plastic melt evenly distributed during the flow process, and is extruded from the die head to form regular, high-quality plastic particles. At the same time, the extruded particles immediately enter the gas-liquid double-cooling circulation granulation cooling structure 9.First, the heat on the surface of the particles is quickly taken away by cold air to initially shape them, and then the atomized coolant is sprayed for deep cooling and solidification to ensure the stability of the internal structure of the particles. The particle guide monitoring structure 12 is used to monitor the molding quality of the particles in real time, such as particle size, roundness, etc., and the data is fed back to the PLC controller 2, so that the PLC controller 2 adjusts the working parameters of the spiral flow channel granulator 8 and the cooling structure 9 according to the feedback information to ensure the stability of the granulation quality. After that, the cooling circulation chamber 11 provides circulating coolant for the cooling process, and the pressure monitor monitors the pressure in the chamber in real time to ensure the safe and stable operation of the cooling system, and finally the molded recycled plastic particles are discharged from the output particle end.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A recycled plastic recycling device, characterized in that: It comprises an equipment box (1), a plastic bottle guiding assembly (13) being installed inside a side end of the equipment box (1), and a bottle handling assembly (14) being installed inside a groove on a side end surface of the equipment box (1); The bottle handling assembly (14) comprises two groups of electric telescopic rods (140), the two groups of electric telescopic rods (140) are installed inside the side of the slot, the side ends of the two groups of electric telescopic rods (140) are installed with soft movable clamping members (141), the top inner wall surface of the slot is installed with a transverse linear screw rod (142), the side end of the transverse linear screw rod (142) is connected to the surface of the frame body and is fastened with a rotating motor adjustment box (143), the bottom of the rotating motor adjustment box (143) is installed with a movable shaft arm (144), the side end of the movable shaft arm (144) is installed with a clamping member, the bottom end of the transverse linear screw rod (142) is slidably connected to a sliding seat, and the bottom of the sliding seat A short-distance adjustment sliding guide rail (145) is installed, and an annular electrically controlled rotating guide rail (146) is installed at the bottom end of the short-distance adjustment sliding guide rail (145). An adjustment swing arm (147) is slidably connected to the outer circumference of the annular electrically controlled rotating guide rail (146). A laser transmitter (148) is connected to the bottom end of the adjustment swing arm (147) via a laser sensor. A bottle mouth inner expansion position calibration piece (149) is installed at the bottom of the annular electrically controlled rotating guide rail (146). A miniature electromagnetic lifting rod (1490) is installed at the side end of the bottle mouth inner expansion position calibration piece (149). The bottom of the miniature electromagnetic lifting rod (1490) is fastened with a bottle head electric clamp (1491).

2. The recycled plastic recycling device according to claim 1, characterized in that: The plastic bottle guiding assembly (13) comprises a feed arc slot frame (130), a slow slot frame (131) is installed on the side end of the feed arc slot frame (130), a rotating frame (132) is installed on the side end of the slow slot frame (131), a rotating slot (133) is provided on the surface of the rotating frame (132), and a rotatable device (134) is rotatably connected inside the rotating slot (133).

3. The recycled plastic recycling device according to claim 2, characterized in that: A turning frame (135) is installed at the side end of the rotator (134), and the turning frame (135) is located inside the turning frame (132) to form a rotation connection. A track arc column rod (136) is installed at the top edge of the turning frame (132), and a plastic bottle body (137) is slidably connected inside the track arc column rod (136).

4. The recycled plastic recycling device according to claim 1, characterized in that: A first crushing structure (15) is installed at the bottom of the side end of the equipment box (1), a second crushing structure (18) is installed inside the side end of the equipment box (1), the hardness and sharpness of the internal crushing gear of the second crushing structure (18) are smaller than those of the first crushing structure (15), a frequency conversion gear set (16) is installed at the side ends of the first crushing structure (15) and the second crushing structure (18), an electromagnetic blocker and a synchronous pulley (17) are installed outside the side ends of the frequency conversion gear set (16), and a PLC controller (2) is installed on the surface of the equipment box (1).

5. The recycled plastic recycling device according to claim 4, characterized in that: The bottom end of the first crushing structure (15) is connected to a discharge guide groove (21), the bottom end of the second crushing structure (18) is connected to a vertical guide groove (19), and the side ends of the discharge guide groove (21) and the vertical guide groove (19) are both connected to an ion cleaning box (20).

6. The recycled plastic recycling device according to claim 5, characterized in that: The side end of the ion cleaning box (20) is connected to a bucket-type lifting structure (23), and the top of the side end of the bucket-type lifting structure (23) is connected to a discharge trough (22).

7. The recycled plastic recycling device according to claim 6, characterized in that: The side end of the discharge trough (22) is connected to an ultrasonic cleaning chamber (5), the side end of the ultrasonic cleaning chamber (5) is connected to a microwave drying chamber (4), and the side end of the microwave drying chamber (4) is connected to a vacuum guide chamber (3).

8. The recycled plastic recycling device according to claim 7, characterized in that: The bottom of the side end of the vacuum guide chamber (3) is connected to a spiral distribution guide chamber (7), and the side end of the spiral distribution guide chamber (7) is connected to a drive energy-saving motor (6) through a speed regulator, and the output end of the drive energy-saving motor (6) is connected to a spiral flow channel granulator (8).

9. The recycled plastic recycling device according to claim 8, characterized in that: A gas-liquid dual-cooling circulation granulation cooling structure (9) is installed at the bottom of the spiral flow channel granulator (8), and a particle guide monitoring structure (12) is connected to the left output end of the spiral flow channel granulator (8), and the side end of the particle guide monitoring structure (12) is connected to the cooling circulation chamber (11).

10. The recycled plastic recycling device according to claim 9, characterized in that: The bottom of the cooling circulation chamber (11) is fastened with a support frame (10), the top of the cooling circulation chamber (11) is provided with a pressure monitor, and the side end of the cooling circulation chamber (11) is connected to an output grain end.

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