Environment-friendly recycling treatment system and method for PET plastic steel packing belt

Abstract

The invention belongs to the technical field of packing belt recycling treatment, and discloses an environment-friendly recycling treatment system and method for a PET plastic steel packing belt, the environment-friendly recycling treatment system comprises a feeding box, a smashing box fixedly connected to the bottom of the feeding box and a smashing mechanism arranged in the smashing box, and a rotating roller is rotationally arranged in the feeding box. According to the material cutting device, long-strip-shaped raw materials are fully wound on the outer side of the material cutting assembly, in the rotating process, pressure air is intermittently guided into a rotating roller, reciprocating telescopic movement of the material cutting assembly is completed, cutting treatment of the long-strip-shaped raw materials wound on the outer side is completed in the reciprocating telescopic movement process, and meanwhile in the rotating reciprocating telescopic process, the long-strip-shaped raw materials wound on the outer side are cut off. And the cut packing belt is further repeatedly punched, the long-strip-shaped packing belt is rapidly and fully punched into a large number of short materials, convenience is provided for follow-up smashing, raw materials are prevented from being wound and twisted in the rotary smashing period, and the smashing and recycling effect and stability are improved through preceding-stage rapid cutting-off treatment.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging tape recycling and processing, and specifically relates to an environmentally friendly recycling and processing system and method for PET plastic-steel packaging tape. Background Art

[0002] PET plastic-steel strapping tape (also known as PET strapping tape, polyester strapping tape) is a plastic strapping material made of polyethylene terephthalate (PET) as the main raw material. It is mainly used to replace traditional steel strapping tape, PP strapping tape, etc., and is widely used in logistics, building materials, papermaking, food and other industries. Waste strapping tape usually needs to be recycled in an environmentally friendly way to achieve recycling.

[0003] In the environmentally friendly recycling process of PET plastic-steel strapping in the existing technology, the waste long strips of strapping are usually thrown into a crushing box for direct crushing, and are screened and cleaned after crushing, and hot-melt granulated after processing to achieve environmentally friendly recycling. However, in the actual crushing process, when the long strips of raw materials are directly put into the crushing box for crushing, the raw materials are easily entangled and strangled on the crushing mechanism, causing crushing failure or even shutdown failure. At present, primary manual cutting is often used to reduce the length before feeding. However, the actual cutting operation is cumbersome, and additional cutting processing is required under non-manual means, which increases the time for raw materials to flow between equipment. The comprehensive recycling operation is cumbersome and the use effect is poor. Summary of the Invention

[0004] The object of the present invention is to provide an environmentally friendly recycling and processing system and method for PET plastic-steel strapping to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an environmentally friendly recycling and processing system and method for PET plastic-steel strapping, comprising a feeding box, a crushing box fixedly connected to the bottom of the feeding box, and a crushing mechanism arranged in the crushing box, wherein a rotating roller is provided for rotation inside the feeding box, and a cutting assembly is sleeved on the outer side surface of the rotating roller at equal intervals, an air pump and a composite control unit are respectively provided on the sides of the feeding box, an air flow distribution assembly is fixedly provided at one end of the rotating roller, the composite control unit controls the rotation of the rotating roller through the air flow distribution assembly, the air pump inputs air flow into the rotating roller through the air flow distribution assembly, and realizes intermittent extension and contraction control of the cutting assembly during the rotation of the rotating roller,

[0006] The air flow distribution component includes a connecting column, a distribution cover, a through hole, an air inlet hole and an air outlet hole. The through holes are evenly distributed around the end of the connecting column. The air inlet hole and the air outlet hole are both opened in the distribution cover. The air inlet hole and the air outlet hole are alternately connected to the through hole.

[0007] Preferably, the rotating roller includes a roller body, an assembly cavity and an intermediate cavity. The intermediate cavity is opened in the middle of the roller body, and the assembly cavity is opened around the outer surface of the roller body. One end of the roller body is fixedly connected to a support tube, and the other end of the roller body is fixedly connected to a connecting column. The interior of the connecting column is connected to the intermediate cavity, and the intermediate cavity is connected to the assembly cavity.

[0008] Preferably, the cutting assembly includes a cutter and a spring 1, one end of the spring 1 is fixedly connected to the cutter, and the other end of the spring 1 is fixed in the assembly cavity, and one end of the cutter is movably sleeved in the assembly cavity.

[0009] Preferably, a pushing assembly is provided on the top of the feeding box, and the pushing assembly includes a pushing block and an electric push rod. The bottom of the pushing block is an arc-shaped groove, and the top of the pushing block is fixedly connected to the movable end of the electric push rod. The electric push rod is fixed to the top of the feeding box through a bracket.

[0010] Preferably, the interior of the feeding box is an arc surface, and the inner arc surface of the feeding box is adapted to the arc groove at the bottom of the push block. Feeding ports are provided on both sides of the feeding box, and a bottom port is provided at the bottom of the feeding box.

[0011] Preferably, the air inlet and the air outlet are both located on the rotation path of the through hole, the air inlet is connected to the air outlet end of the air pump, the crushing mechanism includes a motor 1, a rotating shaft 1 and a crushing blade, the rotating shaft 1 is rotatably sleeved in the crushing box, the crushing blade is arranged on the outer surface of the rotating shaft 1, and the output shaft of the motor 1 is fixedly connected to the rotating shaft 1.

[0012] Preferably, a purge mechanism is provided inside the rotating roller, an air guide component is provided inside the middle cavity, a compression pre-storage part is provided on the outside of the air guide component, the outer end of the air guide component is connected with the air outlet hole, the purge mechanism includes a connecting cavity and a purge hole, the connecting cavity is opened inside the roller body, the purge hole is opened on the outer surface of the roller body, the connecting cavity is connected with the middle cavity, the purge hole is connected with the connecting cavity, the air guide component includes an air guide pipe and a sealing plug, the compression pre-storage part includes a movable plate and a spring four, the sealing plug is fixedly sleeved on the outside of the air guide pipe, and the sealing plug is sleeved in the middle cavity, the sealing plug divides the middle cavity into two left and right chambers, the movable plate is movably sleeved on the outside of the air guide pipe, the spring four is fixedly connected between the movable plate and the sealing plug, and the air guide component blows out the gas filled in the rotating roller through the purge mechanism.

[0013] Preferably, the composite control unit includes motor 2, rotating shaft 2, gear 1, cam and gear 2, gear 2 is fixedly sleeved on the outside of the airflow distribution component, gear 1 and cam are both fixedly sleeved on the outer surface of rotating shaft 2, the output shaft of motor 2 is fixedly connected to rotating shaft 2, and gear 2 is meshed with gear 1.

[0014] Preferably, a closing assembly is provided inside the crushing box, and the closing assembly is located below the bottom opening. A hydraulic linkage assembly is provided on the outside of the crushing box. The composite control unit controls the reciprocating movement of the closing assembly through the hydraulic linkage assembly and intermittently opens the bottom opening. The closing assembly includes a baffle, a connecting rod and a sleeve. The hydraulic linkage assembly includes a hydraulic cylinder and a push rod. One end of the push rod abuts against the outer surface of the cam, and the other end of the push rod is elastically sleeved in the hydraulic cylinder. The hydraulic cylinder is filled with lubricating oil. The sleeve is connected and arranged on the outer surface of the hydraulic cylinder. One end of the connecting rod is elastically sleeved in the sleeve, and the other end of the connecting rod is fixedly connected to the baffle.

[0015] An environmentally friendly recycling method for PET plastic-steel strapping, applied to an environmentally friendly recycling system for PET plastic-steel strapping, comprises the following recycling steps:

[0016] Step 1: Put the long strip of PET steel plastic strip raw material into the loading box along the feeding port, start the pushing component to press down, and make the raw material fall fully into the interior of the loading box;

[0017] Step 2: Start the composite control unit to drive the rotating roller to rotate, and cooperate with the cutting components distributed around the outer side to wind the long strip of raw material around the outer side of the rotating roller and the cutting components;

[0018] Step 3: Then start the air pump, and input the pressurized air into the air flow distribution component. As the rotating roller rotates, the air flow is input into the rotating roller through the connected air inlet and through-holes, and the air pressure pushes the cutting component to move quickly, and cuts the outer long strips of raw materials. After cutting, as the rotating roller rotates, the internal filling air flow bypasses the connected through-holes and air outlet holes in the air flow distribution component to the air guide component, and the purge mechanism in the rotating roller blows out the air flow;

[0019] Step 4: As the composite control unit rotates, it drives the rotating roller to rotate, controls the reciprocating movement of the hydraulic linkage component, and reciprocatingly compresses the internal lubricating oil, applies the hydraulic pressure to the closing component, causing the closing component to move back and forth and intermittently open the bottom port. When the bottom port is opened, the repeatedly cut short materials fall into the crushing box;

[0020] Step 5: The short materials that fall into the crushing box are crushed by the rotation of the crushing mechanism to form fine crushed materials, and then fall out of the discharge port at the bottom of the crushing box to be recycled.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention utilizes a rotating roller, a composite control unit, an air flow distribution component and a cutting component. After the long strip raw materials are put into the loading box, the long strip raw materials are fully wound around the outside of the cutting component by the rotation of the cutting component and the rotating roller. During the rotation process, pressurized air is intermittently introduced into the rotating roller, and the reciprocating telescopic movement of the cutting component is completed. During the reciprocating telescopic movement, the long strip raw materials wrapped on the outside are cut. At the same time, during the rotating reciprocating telescopic process, the cut strapping tape is repeatedly punched, and the long strip strapping tape is quickly and fully punched into a large number of short materials, which is convenient for subsequent crushing and avoids the entanglement and strangulation of raw materials during rotary crushing. The quick cutting process of the front stage improves the effect and stability of crushing recovery.

[0023] 2. The present invention utilizes a rotating roller, an air flow distribution component, an air guide component and a compression pre-storage part to guide the input pressurized air flow back and forth into the air guide component during the above-mentioned reciprocating cutting process, and at the same time cooperates with the compression pre-storage part to increase the amount of pressurized air stored in the rotating roller, so that the air guide component guides a large amount of pressurized air in the rotating roller to the connecting cavity and the purge hole, so that during the rotating reciprocating cutting process, the exhausted pressurized air is further blown and sprayed toward the interior of the loading box. In conjunction with the rotating effect, blowing and spraying are performed at various angles during the rotation process. On the one hand, the internal punched packaging tape raw materials are blown and cleaned to eliminate dust. On the other hand, the air flow blows downward to further disperse the cut packaging tape, enhance the disturbance effect, thereby improving the downward falling effect and avoiding accumulation.

[0024] 3. The present invention realizes the rotation of the rotating roller and the reciprocating output of pressurized air by reusing the composite control part, and also intermittently controls the reciprocating action of the closing component through the hydraulic linkage component. The bottom of the feeding box is intermittently opened and sealed by the reciprocating transverse moving closing component, so as to realize intermittent material dropping during the punching process, so that the short materials falling into the crushing box are intermittently fed, avoiding the difficulty of crushing caused by a large amount of materials being fed at a time. In conjunction with the discharge port at the bottom of the crushing box, the total amount of short material packaging tape crushed each time is limited, thereby ensuring sufficient crushing quality and good actual environmental protection recycling treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0027] Figure 3 It is a cross-sectional schematic diagram of the feeding box and the crushing box of the present invention;

[0028] Figure 4 Schematic diagram of the crushing mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the installation of the composite control unit and the air flow distribution assembly of the present invention;

[0030] Figure 6 is a schematic cross-sectional view of the rotating roller and air flow distribution assembly of the present invention;

[0031] Figure 7 is a schematic cross-sectional view of the rotating roller of the present invention;

[0032] Figure 8 Schematic diagram of the pusher assembly of the present invention;

[0033] Figure 9 Schematic diagram of the air guide assembly and the compression pre-storage portion of the present invention;

[0034] Figure 10 An exploded schematic diagram of the air flow distribution assembly of the present invention;

[0035] Figure 11 is an exploded schematic diagram of the closure assembly of the present invention;

[0036] Figure 12 is a schematic diagram of the hydraulic linkage assembly of the present invention;

[0037] Figure 13 Schematic diagram of the cutting assembly of the present invention.

[0038] Figure: 1, feeding box; 2, crushing box; 3, crushing mechanism; 31, motor 1; 32, rotating shaft 1; 33, crushing blade; 4, rotating roller; 41, roller body; 42, assembly chamber; 43, intermediate chamber; 5, support tube; 6, pushing assembly; 61, pushing block; 62, electric push rod; 7, cutting assembly; 71, cutter; 72, spring 1; 8, air flow distribution assembly; 81, connecting column; 82, distribution cover; 83, through hole; 84, air inlet; 85, air outlet; 9, air pump; 10, re Control unit; 101. Motor 2; 102. Rotating shaft 2; 103. Gear 1; 104. Cam; 105. Gear 2; 11. Closing assembly; 111. Baffle; 112. Connecting rod; 113. Sleeve; 12. Hydraulic linkage assembly; 121. Hydraulic cylinder; 122. Push rod; 13. Air guide assembly; 131. Air guide tube; 132. Sealing plug; 14. Compression pre-storage unit; 141. Movable plate; 142. Spring 4; 15. Connecting chamber; 16. Purge hole; 17. Bottom opening. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 making creative efforts are within the scope of protection of the present invention.

[0040] like Figures 1 to 13 As shown, an embodiment of the present invention provides an environmentally friendly recycling and processing system and method for PET plastic-steel strapping, including a feeding box 1, a crushing box 2 fixedly connected to the bottom of the feeding box 1, and a crushing mechanism 3 arranged in the crushing box 2. A rotating roller 4 is provided inside the feeding box 1, and a cutting assembly 7 is evenly spaced on the outer side surface of the rotating roller 4. An air pump 9 and a composite control unit 10 are respectively provided on the sides of the feeding box 1. An air flow distribution assembly 8 is fixedly provided at one end of the rotating roller 4. The composite control unit 10 controls the rotation of the rotating roller 4 through the air flow distribution assembly 8. The air pump 9 inputs air flow into the rotating rotating roller 4 through the air flow distribution assembly 8, and realizes intermittent extension and contraction control of the cutting assembly 7 during the rotation of the rotating roller 4. The air flow distribution assembly 8 includes a connecting column 81, a distribution cover 82, a through hole 83, an air inlet 84 and an air outlet 85. The through holes 83 are evenly spaced and distributed around the end of the connecting column 81. The air inlet 84 and the air outlet 85 are both opened in the distribution cover 82, and the air inlet 84 and the air outlet 85 are alternately connected to the through hole 83.

[0041] Example 1: When in use, the long strip of PET steel plastic strip raw material is put into the loading box 1 along the feeding port, the pushing component 6 is started and the pushing block 61 is moved downward, and the downward pushing action makes the raw material fall fully into the interior of the loading box 1, the composite control unit 10 is started, the second shaft 102 drives the gear 1 103 to rotate, and drives the meshing gear 2 105 to rotate, and the gear 2 105 drives the connecting column 81 of the air flow distribution component 8 to rotate, and drives the rotating roller 4 to rotate through the connecting column 81, and cooperates with the external The cutting assembly 7 distributed around the side winds the long strip of raw material around the outer side of the rotating roller 4 and the cutting assembly 7, and then starts the air pump 9, and the pressurized air is input into the air inlet 84 of the air flow distribution assembly 8. As the rotating roller 4 rotates, when the air inlet 84 and the through hole 83 are connected, the air outlet 85 is sealed, and the air flow is input into the interior of the connecting column 81 through the through hole 83 and into the rotating roller 4, and the air flow enters the middle cavity 43, so that the internal air pressure increases, and the gas further fills the assembly cavity 4. 2, and push the cutting assembly 7 to move out quickly. As the cutter 71 moves out quickly and contacts the inner wall of the feeding box 1, the outer long strip of raw material is cut during the action. After cutting, as the rotating roller 4 continues to rotate, when the through hole 83 is connected with the air outlet 85, the air inlet 84 is sealed, and the air flow previously filled in the interior passes through the through hole 83 and the air outlet 85 connected in the air flow distribution assembly 8 and bypasses to the air guide assembly 13. The cutting assembly 7 is elastically reset by the spring 1 72, thus completing the reciprocating cutting process during the rotation. and when the airflow is input into the air guide assembly 13, the airflow enters the middle cavity 43 again along the air guide pipe 131, and is located in the independent cavity on the other side of the sealing plug 132, and is introduced into the purge hole 16 along the connecting cavity 15 connected thereto, and in the gap between the reciprocating rotation and cutting, the flowing airflow is intermittently blown into the upper material box 1, so that the dust in the raw material in the upper material box 1 is blown out to complete the cleaning, and at the same time, the airflow is intermittently blown down, so that the cut raw material is further dispersed and disturbed, and can be discharged downward quickly.

[0042] First, by utilizing the rotating roller 4, the composite control unit 10, the air flow distribution component 8 and the cutting component 7, after the long strip raw material is put into the loading box 1, the long strip raw material is fully wound around the outside of the cutting component 7 by utilizing the rotation of the cutting component 7 and the rotating roller 4, and during the rotation, the pressurized air is intermittently introduced into the rotating roller 4, and the reciprocating telescopic movement of the cutting component 7 is completed. During the reciprocating telescopic movement, the cutting process of the long strip raw material wrapped on the outside is completed. At the same time, during the rotating reciprocating telescopic process, the cut strapping tape is further repeatedly punched, and the long strip strapping tape is quickly and fully punched into a large number of short materials, which improves the convenience for subsequent crushing and avoids the entanglement and strangulation of raw materials during rotary crushing. The quick cutting process of the previous stage improves the effect and stability of crushing recovery.

[0043] In addition, by utilizing the rotating roller 4, the air flow distribution component 8, the air guide component 13 and the compression pre-storage part 14, in the process of realizing the above-mentioned reciprocating cutting, the input pressure air flow is reciprocatingly guided to the air guide component 13, and at the same time, the compression pre-storage part 14 is used to increase the amount of pressure air stored inside the rotating roller 4, so that the air guide component 13 guides a large amount of pressure air in the rotating roller 4 to the connecting cavity 15 and the purge hole 16, so that in the process of rotating reciprocating cutting, the discharged pressure air is further blown and sprayed toward the inside of the loading box 1, and in conjunction with the rotation effect, blowing and spraying are performed at various angles during the rotation process. On the one hand, the internal punched strapping raw materials are blown and cleaned to eliminate dust. On the other hand, the air flow blows downward to further disperse the cut strapping tape, enhance the disturbance effect, thereby improving the downward falling effect and avoiding accumulation.

[0044] Example 2: As the compound control part 10 rotates, the second rotating shaft 102 further drives the cam 104 to rotate, and as the cam 104 rotates, it drives the rotating roller 4 to rotate. At the same time, the cam 104 pushes the push rod 122 in the hydraulic linkage assembly 12 below back and forth, causing the push rod 122 to move up and down back and forth, thereby compressing the internal lubricating oil back and forth. During compression, the hydraulic pressure is applied to the connecting rod 112 of the closing assembly 11. Cooperating with the elasticity of the second spring in the sleeve 113, the connecting rod 112 drives the baffle 111 to move back and forth horizontally and intermittently open the bottom opening 17. When the bottom opening is opened, the cut short materials fall into the crushing box 2. The short materials falling into the crushing box 2 are crushed by the rotation of the crushing mechanism 3 to form fine crushed materials, and the target fine crushed materials for recovery fall out along the bottom discharge port of the crushing box 2.

[0045] First, by reusing the composite control unit 10, the rotating roller 4 rotates and reciprocatingly outputs pressurized air, and the reciprocating movement of the closing component 11 is intermittently controlled by the hydraulic linkage component 12. The reciprocating transverse movement of the closing component 11 is used to intermittently open and seal the bottom of the feeding box 1, thereby realizing intermittent material dropping during the punching process, so that the short materials falling into the crushing box 2 are intermittently fed, avoiding the difficulty of crushing caused by a large amount of material being fed at a time. In conjunction with the discharge port at the bottom of the crushing box 2, the total amount of short material packaging tape crushed each time is limited, thereby ensuring sufficient crushing quality and good actual environmental protection recycling treatment effect.

[0046] Among them, the rotating roller 4 includes a roller body 41, an assembly cavity 42 and an intermediate cavity 43. The intermediate cavity 43 is opened in the middle of the roller body 41, and the assembly cavity 42 is opened around the outer surface of the roller body 41. One end of the roller body 41 is fixedly connected to the support tube 5, and the other end of the roller body 41 is fixedly connected to the connecting column 81. The interior of the connecting column 81 is connected to the intermediate cavity 43, and the intermediate cavity 43 is connected to the assembly cavity 42. The cutting component 7 includes a cutter 71 and a spring 72. One end of the spring 72 is fixedly connected to the cutter 71, and the other end of the spring 72 is fixed in the assembly cavity 42. One end of the cutter 71 is movably sleeved in the assembly cavity 42.

[0047] The rotating roller 4 cooperates with the cutting component 7 to fully wind the long strip of packaging tape during the rotation process, and completes quick cutting when the cutting component 7 reciprocates, thereby improving the cutting effect and fully performing the punching processing after the external winding. The spring 1 72 is used for elastic reset.

[0048] Among them, a pushing assembly 6 is provided on the top of the feeding box 1, and the pushing assembly 6 includes a pushing block 61 and an electric push rod 62. The bottom of the pushing block 61 is an arc-shaped groove, and the top of the pushing block 61 is fixedly connected to the movable end of the electric push rod 62. The electric push rod 62 is fixed to the top of the feeding box 1 through a bracket. The interior of the feeding box 1 is an arc surface, and the arc surface inside the feeding box 1 is adapted to the arc groove at the bottom of the pushing block 61. Feeding ports are provided on both sides of the feeding box 1, and a bottom port 17 is provided at the bottom of the feeding box 1.

[0049] The pushing component 6 moves downward to ensure that the packing belt is fully moved to the inside of the loading box 1. The arc-shaped groove adapts to the shape of the internal cavity of the loading box 1 and adapts to the cutting processing of the surrounding cutting components 7.

[0050] Among them, the air inlet 84 and the air outlet 85 are both located on the rotation path of the through hole 83, the air inlet 84 is connected to the air outlet end of the air pump 9, the crushing mechanism 3 includes a motor 31, a rotating shaft 32 and a crushing blade 33, the rotating shaft 32 is rotatably sleeved in the crushing box 2, the crushing blade 33 is arranged on the outer surface of the rotating shaft 32, and the output shaft of the motor 31 is fixedly connected to the rotating shaft 32.

[0051] Through the rotation of multiple groups of through holes 83, they are alternately connected with the air inlet holes 84 and the air outlet holes 85 at fixed positions, and the air inlet holes 84 and the air outlet holes 85 will not be connected with the through holes 83 at the same time, ensuring that the incoming gas maintains a seal and is pushed by air pressure, and is discharged through the air outlet holes 85 after punching to complete the reset and realize reciprocating cutting.

[0052] Among them, the interior of the rotating roller 4 is provided with a purge mechanism, the interior of the intermediate cavity 43 is provided with an air guide component 13, the outer side of the air guide component 13 is provided with a compression pre-storage portion 14, the outer end of the air guide component 13 is connected to the air outlet 85, the purge mechanism includes a connecting cavity 15 and a purge hole 16, the connecting cavity 15 is opened inside the roller body 41, the purge hole 16 is opened on the outer surface of the roller body 41, the connecting cavity 15 is connected to the intermediate cavity 43, the purge hole 16 is connected to the connecting cavity 15, the air guide component 13 includes an air guide pipe 131 and The sealing plug 132 and the compression pre-storage part 14 include a movable plate 141 and a spring four 142. The sealing plug 132 is fixedly sleeved on the outside of the air guide tube 131, and the sealing plug 132 is sleeved in the middle cavity 43. The sealing plug 132 divides the middle cavity 43 into two left and right chambers. The movable plate 141 is movably sleeved on the outside of the air guide tube 131. The spring four 142 is fixedly connected between the movable plate 141 and the sealing plug 132. The air guide assembly 13 blows out the gas filled in the rotating roller 4 through the purge mechanism.

[0053] The purging mechanism cooperates with the air guide component 13. When the cutting component 7 is reset, the pressurized air is fully guided and purged out through the purging hole 16 to complete intermittent purging. Before the pressure input and the action of the cutting component 7 are realized, the compression pre-storage part 14 first compresses and stores the pressure potential energy to ensure that the compression pre-storage part 14 further reduces the space on the right side of the intermediate cavity 43 during exhaust, thereby further increasing the exhaust gas flow rate and the amount of purging gas.

[0054] A sealing ring (not shown) is provided on the outer side of the sealing plug 132 to ensure the relative dynamic sealing state of the sealing plug 132 in the middle cavity 43. Similarly, a sealing member is also provided between the cutter 71 and the assembly cavity 42 to achieve dynamic sealing.

[0055] Among them, the compound control unit 10 includes motor 2 101, rotating shaft 2 102, gear 1 103, cam 104 and gear 2 105. Gear 2 105 is fixedly sleeved on the outside of the air flow distribution component 8. Gear 1 103 and cam 104 are both fixedly sleeved on the outer surface of rotating shaft 2 102. The output shaft of motor 2 101 is fixedly connected to rotating shaft 2 102, and gear 2 105 is meshed with gear 1 103.

[0056] The composite control unit 10 rotates to realize the rotation of the rotating roller 4, the intermittent air supply of the air flow distribution component 8, and the reciprocating motion of the closing component 11, thereby realizing the intermittent opening of the bottom opening 17 and the intermittent blanking.

[0057] Among them, a closing component 11 is provided inside the crushing box 2, and the closing component 11 is located below the bottom opening 17. A hydraulic linkage component 12 is provided on the outside of the crushing box 2. The composite control unit 10 controls the reciprocating movement of the closing component 11 through the hydraulic linkage component 12, and intermittently opens the bottom opening 17. The closing component 11 includes a baffle 111, a connecting rod 112 and a sleeve 113. The hydraulic linkage component 12 includes a hydraulic cylinder 121 and a push rod 122. One end of the push rod 122 abuts against the outer surface of the cam 104, and the other end of the push rod 122 is elastically sleeved in the hydraulic cylinder 121. The hydraulic cylinder 121 is filled with lubricating oil. The sleeve 113 is connected and arranged on the outer surface of the hydraulic cylinder 121. One end of the connecting rod 112 is elastically sleeved in the sleeve 113, and the other end of the connecting rod 112 is fixedly connected to the baffle 111.

[0058] By utilizing the cooperation between the hydraulic linkage assembly 12 and the cam 104, the internal hydraulic oil is squeezed out reciprocatingly, and the sealing assembly 11 is pushed reciprocatingly to complete the intermittent sealing.

[0059] The connecting rod 112 in the closing component 11 is elastically sleeved in the sleeve 113 through spring 2, which facilitates elastic reset and completes the reciprocating action. Similarly, the push rod 122 in the hydraulic linkage component 12 is elastically connected through spring 3, also for elastic reset.

[0060] An environmentally friendly recycling method for PET plastic-steel strapping, applied to an environmentally friendly recycling system for PET plastic-steel strapping, comprises the following recycling steps:

[0061] Step 1: Put the long strip of PET steel plastic strip raw material into the loading box 1 along the feeding port, start the pushing component 6 to press down, and make the raw material fall fully into the interior of the loading box 1;

[0062] Step 2: Start the composite control unit 10 to drive the rotating roller 4 to rotate, and cooperate with the cutting components 7 distributed around the outer side to wind the long strip of raw material around the outer side of the rotating roller 4 and the cutting components 7;

[0063] Step 3: Then start the air pump 9, and input the pressurized air into the air flow distribution component 8. As the rotating roller 4 rotates, the air flow is input into the rotating roller 4 through the connected air inlet hole 84 and the through hole 83, and the air pressure pushes the cutting component 7 to move quickly, and cuts the outer long strip of raw material. After cutting, as the rotating roller 4 rotates, the air flow filling the interior bypasses to the air guide component 13 through the connected through hole 83 and the air outlet hole 85 in the air flow distribution component 8, and the purge mechanism in the rotating roller 4 blows out the air flow.

[0064] Step 4: As the composite control unit 10 rotates, it drives the rotating roller 4 to rotate, and controls the hydraulic linkage assembly 12 to reciprocate, and reciprocately compresses the internal lubricating oil, applying hydraulic pressure to the closing assembly 11, causing the closing assembly 11 to reciprocate and intermittently open the bottom opening 17. When the bottom opening is opened, the repeatedly cut short materials fall into the crushing box 2;

[0065] Step 5: The short materials falling into the crushing box 2 are crushed by the rotation of the crushing mechanism 3 to form fine crushed materials, and then fall out of the discharge port at the bottom of the crushing box 2 to be recycled target fine crushed materials.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly recycling and processing system for PET plastic-steel strapping, comprising a feeding box (1), a crushing box (2) fixedly connected to the bottom of the feeding box (1), and a crushing mechanism (3) arranged in the crushing box (2), characterized in that: The feeding box (1) is provided with a rotating roller (4) for internal rotation, and a cutting assembly (7) is sleeved on the outer side surface of the rotating roller (4) at equal intervals. An air pump (9) and a composite control unit (10) are provided on the side surfaces of the feeding box (1), and an air flow distribution assembly (8) is fixedly provided at one end of the rotating roller (4). The composite control unit (10) controls the rotation of the rotating roller (4) through the air flow distribution assembly (8). The air pump (9) inputs air flow into the rotating roller (4) in rotation through the air flow distribution assembly (8), and realizes intermittent expansion and contraction control of the cutting assembly (7) during the rotation of the rotating roller (4). The air flow distribution assembly (8) comprises a connecting column (81), a distribution cover (82), a through hole (83), an air inlet hole (84) and an air outlet hole (85), wherein the through holes (83) are distributed at equal intervals around the end of the connecting column (81), the air inlet hole (84) and the air outlet hole (85) are both opened in the distribution cover (82), and the air inlet hole (84) and the air outlet hole (85) are alternately connected to the through hole (83).

2. The environmentally friendly recycling and processing system for PET plastic-steel strapping according to claim 1, characterized in that: The rotating roller (4) comprises a roller body (41), an assembly cavity (42) and an intermediate cavity (43); the intermediate cavity (43) is provided in the middle of the roller body (41); the assembly cavity (42) is provided around the outer surface of the roller body (41); one end of the roller body (41) is fixedly connected to a support tube (5); the other end of the roller body (41) is fixedly connected to a connecting column (81); the interior of the connecting column (81) is connected to the intermediate cavity (43); and the intermediate cavity (43) is connected to the assembly cavity (42).

3. The environmentally friendly recycling and processing system for PET plastic-steel strapping according to claim 2, characterized in that: The cutting assembly (7) includes a cutter (71) and a spring (72), one end of the spring (72) is fixedly connected to the cutter (71), and the other end of the spring (72) is fixed in the assembly cavity (42), and one end of the cutter (71) is movably sleeved in the assembly cavity (42).

4. The environmentally friendly recycling and processing system for PET plastic-steel strapping according to claim 3 is characterized by: A pushing assembly (6) is provided on the top of the loading box (1), and the pushing assembly (6) includes a pushing block (61) and an electric push rod (62). The bottom of the pushing block (61) is an arc-shaped groove, and the top of the pushing block (61) is fixedly connected to the movable end of the electric push rod (62). The electric push rod (62) is fixed to the top of the loading box (1) through a bracket.

5. The environmentally friendly recycling and processing system for PET plastic-steel strapping according to claim 1, characterized in that: The interior of the loading box (1) is an arc surface, and the arc surface inside the loading box (1) is adapted to the arc groove at the bottom of the push block (61). Feeding ports are provided on both sides of the loading box (1), and a bottom opening (17) is provided at the bottom of the loading box (1).

6. The environmentally friendly recycling and processing system for PET plastic-steel strapping according to claim 1, characterized in that: The air inlet (84) and the air outlet (85) are both located on the rotation path of the through hole (83), the air inlet (84) is communicated with the air outlet end of the air pump (9), the crushing mechanism (3) comprises a motor (31), a rotating shaft (32) and a crushing blade (33), the rotating shaft (32) is rotatably sleeved in the crushing box (2), the crushing blade (33) is arranged on the outer surface of the rotating shaft (32), and the output shaft of the motor (31) is fixedly connected to the rotating shaft (32).

7. The environmentally friendly recycling and processing system for PET plastic-steel strapping according to claim 4, characterized in that: The rotating roller (4) is provided with a purge mechanism inside, the middle chamber (43) is provided with an air guide component (13), the outer side of the air guide component (13) is provided with a compression pre-storage portion (14), the outer end of the air guide component (13) is connected with the air outlet (85), the purge mechanism includes a connecting chamber (15) and a purge hole (16), the connecting chamber (15) is provided inside the roller body (41), the purge hole (16) is provided on the outer side of the roller body (41), the connecting chamber (15) is connected with the middle chamber (43), the purge hole (16) is connected with the connecting chamber (15), the air guide component (13) includes an air guide pipe ( 131) and a sealing plug (132), the compression pre-storage part (14) includes a movable plate (141) and a spring four (142), the sealing plug (132) is fixedly sleeved on the outside of the air guide tube (131), and the sealing plug (132) is sleeved in the middle cavity (43), the sealing plug (132) divides the middle cavity (43) into two left and right chambers, the movable plate (141) is movably sleeved on the outside of the air guide tube (131), the spring four (142) is fixedly connected between the movable plate (141) and the sealing plug (132), and the air guide component (13) blows out the gas filled in the interior of the rotating roller (4) through the blowing mechanism.

8. The environmentally friendly recycling and processing system for PET plastic-steel strapping according to claim 7, characterized in that: The composite control unit (10) includes a second motor (101), a second rotating shaft (102), a first gear (103), a cam (104) and a second gear (105). The second gear (105) is fixedly sleeved on the outside of the air flow distribution component (8). The first gear (103) and the cam (104) are both fixedly sleeved on the outer surface of the second rotating shaft (102). The output shaft of the second motor (101) is fixedly connected to the second rotating shaft (102), and the second gear (105) is meshed with the first gear (103).

9. The environmentally friendly recycling and processing system for PET plastic-steel strapping according to claim 8, characterized in that: The crushing box (2) is provided with a sealing assembly (11) inside, the sealing assembly (11) being located below the bottom opening (17), and a hydraulic linkage assembly (12) being provided outside the crushing box (2). The composite control unit (10) controls the sealing assembly (11) to move back and forth and intermittently open the bottom opening (17) through the hydraulic linkage assembly (12). The sealing assembly (11) comprises a baffle (111), a connecting rod (112) and a sleeve (113). The hydraulic linkage assembly (12) comprises a The invention comprises a hydraulic cylinder (121) and a push rod (122), one end of the push rod (122) is in contact with the outer surface of the cam (104), and the other end of the push rod (122) is elastically sleeved in the hydraulic cylinder (121), the hydraulic cylinder (121) is filled with lubricating oil, the sleeve (113) is connected and arranged on the outer surface of the hydraulic cylinder (121), one end of the connecting rod (112) is elastically sleeved in the sleeve (113), and the other end of the connecting rod (112) is fixedly connected to the baffle (111).

10. An environmentally friendly recycling method for PET plastic-steel strapping, applied to an environmentally friendly recycling system for PET plastic-steel strapping according to any one of claims 1 to 9, characterized in that: The recycling steps include: Step 1: Place the long strip of PET steel plastic strip material into the loading box (1) along the feeding port, start the pushing assembly (6) to press down, and allow the material to fully fall into the interior of the loading box (1); Step 2: Start the composite control unit (10) to drive the rotating roller (4) to rotate, and cooperate with the cutting assembly (7) distributed around the outer side surface to wind the long strip of raw material around the outer side of the rotating roller (4) and the cutting assembly (7); Step 3: Then the air pump (9) is started, and the pressurized air is input into the air flow distribution component (8), and as the rotating roller (4) rotates, the air flow is input into the rotating roller (4) through the connected air inlet hole (84) and the through hole (83), and the air pressure pushes the cutting component (7) to move quickly, and cuts the outer long strip of raw material. After cutting, as the rotating roller (4) rotates, the air flow filled inside bypasses the air guide component (13) through the connected through hole (83) and the air outlet hole (85) in the air flow distribution component (8), and the purge mechanism in the rotating roller (4) blows out the air flow; Step 4: As the composite control unit (10) rotates, the rotating roller (4) is driven to rotate, and the hydraulic linkage assembly (12) is controlled to move back and forth, and the internal lubricating oil is compressed back and forth, and the hydraulic pressure is applied to the closing assembly (11), so that the closing assembly (11) moves back and forth and intermittently opens the bottom opening (17). When the bottom opening is opened, the repeatedly cut short materials fall into the crushing box (2); Step 5: The short materials falling into the crushing box (2) are crushed by the rotation of the crushing mechanism (3) to form fine crushed materials, which then fall out of the discharge port at the bottom of the crushing box (2) to be recovered as target fine crushed materials.

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