Plastic waste pipeline crushing and recycling device

Abstract

The invention provides a plastic waste pipeline smashing and recycling device, and relates to the technical field of pipeline smashing, the plastic waste pipeline smashing and recycling device comprises a smashing shell, an inner shell, a feeding pipe, a feeding mechanism and a crushing mechanism, the inner shell is arranged in the smashing shell, a discharging space is reserved between the inner shell and the outer wall of the smashing shell, and the crushing mechanism is arranged in the inner shell; the feeding pipe is of a right-angle structure, the lower end of the feeding pipe communicates with the upper end of the inner shell, and the feeding mechanism is arranged in the feeding pipe. Multi-stage crushing is adopted, the crushing efficiency is improved, multi-stage crushing of the plastic waste pipeline is achieved through combination of the hammer roller, the extrusion roller and the crushing roller, waste can be crushed into small blocks more efficiently, follow-up treatment is facilitated, the pipeline is pretreated through the hammer roller and the extrusion roller, large materials are flattened or crushed before entering the crushing roller, and the crushing efficiency is improved. The opportunity of direct contact between the crushing cutter and hard materials is reduced, the abrasion of the cutter is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline crushing, and in particular to a device for crushing and recovering waste plastic pipelines. Background Art

[0002] Plastic pipes refer to a general term for pipes made of plastic materials. Plastic pipes have the characteristics of light weight, hygiene and safety, small water flow resistance, energy saving, safety and convenience, etc., and are favored by the pipeline engineering industry. After being discarded, plastic pipes can be recycled for a second time and can be reused after processing to achieve the purpose of saving resources and materials. In the process of recycling and processing second-hand plastic pipes, the pipes need to be crushed to facilitate the reprocessing and pressing of the materials.

[0003] For example, publication number CN114770817B discloses an engineering plastic pipe crushing and recovery device, comprising a crusher body, a shell body installed at the top of the crusher body, a feeding structure installed on the shell body, an elastic structure installed on the shell body, a conveying structure installed at one end of the crusher body, a fixing structure arranged on the conveying structure, a bagging structure arranged at the bottom end of the crusher body, and an opening structure installed on the bagging structure; the feeding structure arranged on the shell body can play a role of bearing and feeding the pipe to be crushed, and the feeding structure can synchronously drive the elastic structure to work while feeding the pipe, and through the work of the elastic structure, the pipe can be automatically clamped when feeding the pipe to ensure the feeding effect, and the clamping is automatically released when resetting, thereby greatly improving the feeding efficiency and safety of the pipe.

[0004] However, the plastic pipe crushing and recovery devices in the prior art, including the above-mentioned scheme, adopt a single crushing method, which is inefficient and prone to problems such as material blockage and incomplete crushing. In addition, the tool wear is serious, resulting in high equipment maintenance costs and high safety risks. For example, the splashing debris that may be generated during the feeding process not only wastes materials, but also poses a potential danger to operators. The equipment in the prior art is difficult to meet the requirements of modern recycling processing for high efficiency, low cost and high safety, and it is difficult to give full play to the potential of recycling waste plastic pipes. Therefore, a plastic waste pipe crushing and recovery device is urgently needed to solve such problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems of single crushing method in the prior art, low efficiency, easy material blockage and incomplete crushing.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a plastic waste pipeline crushing and recycling device, comprising a crushing shell, an inner shell, a feed pipe, a feed mechanism and a crushing mechanism, the inner shell is arranged inside the crushing shell and a unloading space is left between the inner shell and the outer wall of the crushing shell, the crushing mechanism is arranged in the inner shell, the feed pipe is a right-angle structure and the lower end is connected to the upper end of the inner shell, the feed mechanism is arranged in the feed pipe, and a splash plate is rotatably provided above the end of the feed pipe away from the crushing shell, the feed mechanism comprises a hammer roller, an extrusion roller and a crushing roller, the hammer roller, the extrusion roller and the crushing roller are respectively provided with two and are arranged to rotate in opposite directions, the two ends of the hammer roller are rotatably arranged at the two ends of the feeding end of the feed pipe, the two hammer rollers are arranged up and down and are driven to rotate by the first motor and the second motor respectively, and the two ends of the upper hammer roller are arranged to slide up and down In the feed pipe, eccentric wheels are linked at both ends of the hammer roller, the crushing roller is rotatably arranged on the inner wall of one end of the feed pipe close to the crushing shell, the two squeezing rollers are rotatably arranged at the corners of the feed pipe, the inner wall of the feed pipe between the squeezing roller, the hammer roller and the crushing roller is provided with a guide plate, the squeezing roller, the hammer roller and the crushing roller are respectively provided with a plurality of first limiting grooves and second limiting grooves at equal distances, the crushing roller is provided with a cutter, an air cylinder is provided at the lower part of the inside of the crushing shell, a piston is provided in the air cylinder for sealing and sliding, the piston is driven to move by a reciprocating mechanism, an air pipe is connected to the air cylinder above the piston, an air bin is connected to the lower end of the inner shell, an elastic membrane is sealed at the upper edge of the air bin, the air pipe output end extends to the closed space between the elastic membrane and the air bin, a plurality of discharge holes are evenly provided on the side wall of the inner shell, and a discharge pipe is provided at the lower end of the crushing shell.

[0007] As a preferred embodiment, the inner walls of the feed pipe at both ends of the hammer roller above are symmetrically provided with slide rails, the end faces of the hammer rollers are linked to the eccentric wheel through a rotating shaft, the rotating shaft passes through the slide rails, the first motor is set up outside the feed pipe for sliding up and down, the first motor is linked to the rotating shaft, and the top of the hammer roller and the top of the inner wall of the feed pipe do not contact each other.

[0008] As a preferred embodiment, a rotating block is rotatably provided in the slide rail, the rotating block is fixedly sleeved outside the rotating shaft and is slidably provided in the slide rail up and down, a slide plate is provided above the interior of the slide rail through a first spring, the slide plate is located above the rotating block, and a hammer block is provided at the first limiting groove of the hammer roller.

[0009] As a preferred embodiment, a fixed plate is provided above the feed end of the feed pipe, the splash plate is located between the fixed plate and the hammer roller, one side of the splash plate is in contact with the fixed plate, a bracket is provided below the feed pipe below the splash plate, a through groove is provided between the bottom of the splash plate and the top of the bracket, and a soft pad is provided below the splash plate.

[0010] As a preferred implementation, a plurality of the first limiting grooves and the second limiting grooves are arranged at equal distances, and the heights of the first limiting grooves and the second limiting grooves decrease in sequence.

[0011] As a preferred embodiment, the lower part of the inner wall of the feed pipe is arranged in an inclined surface, the hammer roller and the extrusion roller are both located at the inclined surface, the second limiting groove of the extrusion roller is provided with meshing teeth and meshing grooves, the meshing teeth and meshing grooves on the two extrusion rollers are meshed, and the extrusion roller and the crushing roller are driven to rotate by the third motor and the fourth motor respectively.

[0012] As a preferred embodiment, four guide plates are provided and are respectively arranged on the upper and lower sides of the feed pipe between the hammer roller and the squeezing roller and between the squeezing roller and the crushing roller through support frames. The guide plates are arranged in an arc shape and are close to but not in contact with the hammer roller, the squeezing roller and the crushing roller.

[0013] As a preferred embodiment, the crushing mechanism includes a crushing shaft, a first crushing blade and a second crushing blade, the first crushing blade and the second crushing blade are arranged on the crushing shaft, the crushing shaft is provided with two and are respectively tilted and rotated on the inner shell, one end of the crushing shaft passes through the inner shell and the crushing shell and extends outside, a fifth motor is provided outside the crushing shell, and the crushing shaft is driven to rotate by the fifth motor.

[0014] As a preferred embodiment, the first crushing blade is arranged at the upper end of the crushing shaft, and the second crushing blade is provided in plurality and has a diameter smaller than that of the first crushing blade.

[0015] As a preferred embodiment, the reciprocating mechanism includes a shaft body and a fixed cylinder, the shaft body is rotatably arranged on the inner wall of the pulverizing shell and is driven to rotate by a sixth motor, a slide groove group is provided on the shaft body, and the slide groove group is provided with multiple, the slide groove group includes an inclined slide groove, a longitudinal slide groove and a transverse slide groove, one end of the transverse slide groove is connected with the upper end of the inclined slide groove, the lower end of the inclined slide groove is connected with the lower end of the longitudinal slide groove, the longitudinal slide groove is connected with one end of the transverse slide groove of the next group of the slide groove group, the fixed cylinder is fixedly arranged in the pulverizing shell and a slider is provided at the lower part thereof through a second spring, one end of the slider passes through the fixed cylinder and is slidably connected to the slide groove group, and the upper part of the slider is assembled and connected to the center position below the piston through a connecting shaft.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. The present invention adopts multi-stage crushing to improve crushing efficiency. Through the combination of hammer roller, extrusion roller and crushing roller, multi-stage crushing of plastic waste pipes is achieved, which can more efficiently crush the waste into small pieces for subsequent processing. The cooperation of the air cylinder and the piston makes the larger pieces rebound to the crushing mechanism for secondary crushing when they fail to pass through the discharge hole. The materials finally discharged are all small pieces that have been fully crushed, ensuring the quality and uniformity of the crushing.

[0018] 2. In the present invention, the pipeline is pre-processed by the hammer roller and the squeeze roller, and the larger pieces of material are flattened or broken before entering the crushing roller, which reduces the chance of the crushing tool directly contacting with the hard material, reduces the wear of the tool, and extends the service life of the equipment.

[0019] 3. In the present invention, a splash plate is arranged above the feed pipe to prevent the material from splashing during the feeding process, protect the safety of the operator, and also reduce the material loss. During the crushing process, the bracket, splash plate, hammer roller, extrusion roller and crushing roller limit the pipeline, which can greatly reduce the large-scale shaking of the pipeline during the crushing process and ensure the safety of the crushing.

[0020] 4. In the present invention, the unloading space between the inner shell and the outer shell is evenly distributed, so that the crushed material can be discharged quickly, avoiding material blockage during the crushing process and improving the continuous working capacity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a plastic waste pipe crushing and recycling device provided by the present invention;

[0022] Figure 2 A schematic diagram of the internal structure of a pulverizing shell and an inner shell of a plastic waste pipe pulverizing and recycling device provided by the present invention;

[0023] Figure 3 A schematic diagram of the positions of the gas bin and gas cylinder of a plastic waste pipe crushing and recovery device provided by the present invention;

[0024] Figure 4 A schematic diagram of a reciprocating mechanism of a plastic waste pipe crushing and recycling device provided by the present invention;

[0025] Figure 5 A schematic diagram of the internal structure of a fixed cylinder of a plastic waste pipe crushing and recovery device provided by the present invention;

[0026] Figure 6 A schematic diagram of the unfolded state of the chute group on the outer surface of the shaft of a plastic waste pipe crushing and recycling device provided by the present invention;

[0027] Figure 7 A schematic diagram of the internal structure of a feed pipe of a plastic waste pipe crushing and recovery device provided by the present invention;

[0028] Figure 8 A schematic diagram of a hammer roller of a plastic waste pipe crushing and recycling device provided by the present invention;

[0029] Fig. 9 A schematic diagram of the positions of the slide rails and eccentric wheels of a plastic waste pipe crushing and recycling device provided by the present invention;

[0030] Fig.10 A schematic diagram of a splash plate of a plastic waste pipe crushing and recycling device provided by the present invention;

[0031] Fig.11 A schematic diagram of an extrusion roller of a plastic waste pipe crushing and recycling device provided by the present invention.

[0032] Legend:

[0033] 1. Crushing shell; 101. Air cylinder; 102. Piston; 103. Air pipe; 104. Discharging pipe; 2. Inner shell; 201. Air chamber; 202. Elastic membrane; 203. Discharging hole; 3. Feeding pipe; 301. Guide plate; 311. Support frame; 302. Slide rail; 321. Rotating block; 322. First spring; 323. Slide plate; 303. Rotating shaft; 304. Fixed plate; 4. Splash plate; 401. Bracket; 402. Cushion; 511. Hammer roller; 512. Extrusion roller; 521. Third motor; 522. Fourth motor; 51 3. Crushing roller; 514. Eccentric wheel; 515. First limiting groove; 516. Second limiting groove; 561. Meshing teeth; 562. Meshing groove; 517. Cutting tool; 518. Hammer; 6. First motor; 7. Second motor; 801. Crushing shaft; 802. First crushing blade; 803. Second crushing blade; 901. Shaft body; 902. Fixed cylinder; 921. Second spring; 922. Sliding block; 923. Connecting shaft; 903. Oblique slide groove; 904. Longitudinal slide groove; 905. Horizontal slide groove; 10. Fifth motor; 11. Sixth motor. DETAILED DESCRIPTION

[0034] 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 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 creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 11The present invention provides a technical solution: a plastic waste pipeline crushing and recycling device, comprising a crushing shell 1, an inner shell 2, a feed pipe 3, a feed mechanism and a crushing mechanism, wherein the inner shell 2 is arranged inside the crushing shell 1 and a discharge space is left between the inner shell 2 and the outer wall of the crushing shell 1, the crushing mechanism is arranged in the inner shell 2, the feed pipe 3 is a right-angle structure and the lower end is connected to the upper end of the inner shell 2, the feed mechanism is arranged in the feed pipe 3, and a splash plate 4 is provided above the end of the feed pipe 3 away from the crushing shell 1. The feeding mechanism includes a hammer roller 511, an extrusion roller 512 and a crushing roller 513. The hammer rollers 511, the extrusion rollers 512 and the crushing rollers 513 are respectively provided with two and are arranged to rotate in opposite directions. The two ends of the hammer roller 511 are rotatably arranged at the two ends of the feeding end of the feeding pipe 3. The two hammer rollers 511 are arranged up and down and are driven to rotate by the first motor 6 and the second motor 7 respectively. The two ends of the upper hammer roller 511 are slidably arranged up and down in the feeding pipe 3. The two ends of the hammer roller 511 are linked with an eccentric wheel 514. The roller 513 is rotatably arranged on the inner wall of the feed pipe 3 near one end of the pulverizing shell 1, and the two squeeze rollers 512 are rotatably arranged at the corners of the feed pipe 3. The inner wall of the feed pipe 3 between the squeeze roller 512, the hammer roller 511 and the crushing roller 513 is provided with a guide plate 301. The squeeze roller 512, the hammer roller 511 and the crushing roller 513 are respectively provided with a plurality of first limiting grooves 515 and second limiting grooves 516 at equal distances. The crushing roller 513 is provided with a cutter 517. The lower part of the pulverizing shell 1 is provided with an air cylinder 101. A piston 102 is provided in a sealed sliding manner in the air cylinder 101, and the piston 102 is driven to move by a reciprocating mechanism. An air pipe 103 is provided in communication with the air cylinder 101 above the piston 102, and an air bin 201 is provided in communication with the lower end of the inner shell 2, and an elastic membrane 202 is provided in a sealed manner at the upper edge of the air bin 201. The output end of the air pipe 103 extends into the closed space between the elastic membrane 202 and the air bin 201, and a plurality of discharge holes 203 are evenly provided on the side wall of the inner shell 2, and a discharge pipe 104 is provided at the lower end of the pulverizing shell 1;

[0036] When the plastic pipe is crushed, one end of multiple pipes is inserted into the feed end of the feed pipe 3 so that each pipe corresponds to a first limiting groove 515. The pipes pass between the two hammer rollers 511, the squeezing roller 512 and the crushing roller 513 in sequence. When passing between the two hammer rollers 511, the hammer roller 511 vibrates up and down under the rotation of the eccentric wheel 514. The strong force of the vibration can compress the distance between the two hammer rollers 511, thereby squeezing the pipe, flattening the pipe or directly crushing it. The pipe is continuously pushed into the feed pipe 3, and the rotation of the two hammer rollers 511 guides the pipe to the deep of the feed pipe 3. The hammered or crushed pipe is The pipe is introduced between the two squeezing rollers 512 under the guiding effect of the guide plate 301, and the pipe that has not been completely flattened by the hammer roller 511 is further squeezed and crushed. The squeezing roller 512 is located at the corner of the feed pipe 3. The pipe needs to be bent at a certain angle when passing between the two squeezing rollers 512, which can further increase the degree of tearing and fragmentation of the pipe. The pipe squeezed by the squeezing roller 512 is flat, which is more convenient for crushing by the crushing roller 513. The squeezed sheet pipe and pipe fragments fall between the two crushing rollers 513 under the guiding effect of the guide plate 301. The cutters 517 on the two crushing rollers 513 cut the pipe and pipe fragments into smaller pieces. Through the cooperation of the hammer roller 511, the squeezing roller 512 and the crushing roller 513, the pipe can be squeezed and crushed into small pieces step by step, and finally cut by the cutter 517 on the crushing roller 513, so as to avoid causing great damage to the cutter 517 during direct cutting, and to extend the service life of the cutter 517 to a certain extent. The pipe fragments fall into the inner shell 2, and after contacting with the crushing mechanism, they are rotated and cut into smaller pieces, and thrown toward the side wall of the inner shell 2. Some of the small pieces cut into small enough pieces can pass through the discharge hole 203 on the inner shell 2 into the unloading space, slide downward under the action of gravity, and finally be discharged from the discharge pipe 104, while some of the fragments that cannot pass through the discharge hole 203 are discharged under the gravity. The elastic membrane 202 is inflated and protrudes into the inner shell 2, so that the large pieces of debris that originally fell on the elastic membrane 202 can be bounced up again, and the fragments fly upward and scatter and re-contact the crushing mechanism for further crushing. Repeat the above steps, immediately exhaust the air after inflating the air chamber 201, and then inflate and exhaust again, repeat the above steps, the fragments in the inner shell 2 can be repeatedly bounced up and crushed and discharged, thereby ensuring the crushing quality of the pipeline.

[0037] like Figure 1-Figure 11, the inner wall of the feed pipe 3 at both ends of the hammer roller 511 above is symmetrically provided with slide rails 302, the end face of the hammer roller 511 is linked with the eccentric wheel 514 through the rotating shaft 303, the rotating shaft 303 passes through the slide rail 302, the first motor 6 is slidably arranged on the outside of the feed pipe 3 up and down, the first motor 6 is linked with the rotating shaft 303, the upper part of the hammer roller 511 and the upper part of the inner wall of the feed pipe 3 do not contact each other, the rotating shaft 303 passes through the slide rail 302 and is linked with the eccentric wheel 514, when the first motor 6 is driven to rotate, the rotating shaft 303, the hammer roller 511 and the eccentric wheel 514 are driven to rotate, and the hammer roller 511 vibrates while rotating. Due to the upper and lower limit of the rotating shaft 303 by the slide rail 302, the upper hammer roller 511 rotates and vibrates up and down, and the pipeline passing between the two hammer rollers 511 can be hammered and flattened.

[0038] like Figure 1-Figure 11 A rotating block 321 is rotatably provided in the slide rail 302, and the rotating block 321 is fixedly sleeved on the outside of the rotating shaft 303 and is slidably provided in the slide rail 302 up and down. A slide plate 323 is provided above the slide rail 302 through a first spring 322, and the slide plate 323 is located above the rotating block 321. A hammer block 518 is provided at the first limiting groove 515 of the hammer roller 511. When the eccentric wheel 514 rotates to drive the rotating shaft 303 to move up and down, the first spring 322 will be squeezed and stretched, thereby achieving irregular vibration of the hammer roller 511, and the pipeline can be hammered flat and crushed by the impact of the hammer block 518 on the pipeline.

[0039] like Figure 1-Figure 11 A fixed plate 304 is provided above the feeding end of the feeding pipe 3, the splash plate 4 is located between the fixed plate 304 and the hammer roller 511, one side of the splash plate 4 is in contact with the fixed plate 304, a bracket 401 is provided below the feeding pipe 3 below the splash plate 4, a through groove is provided between the bottom of the splash plate 4 and the top of the bracket 401, a soft pad 402 is provided below the splash plate 4, and the preliminary position limiting of the pipeline during feeding is achieved through the cooperation between the splash plate 4 and the bracket 401, and the pipeline feeding When the pipe is crushed, it is continuously pushed into the feed pipe 3, and the splash plate 4 is driven to rotate and move at an angle. A certain acute angle is generated between the splash plate 4 and the fixed plate 304. The fixed plate 304 is set to limit the rotation direction of the splash plate 4. When splashing debris is generated during the pipeline crushing process, some debris will fly toward the feed end of the feed pipe 3. The splash plate 4 blocks it and prevents it from splashing out. The soft pad 402 is set to adapt to a certain degree of vibration buffering of the pipeline during the hammering process.

[0040] like Figure 1-Figure 11A plurality of the first limiting grooves 515 and the second limiting grooves 516 are arranged at equal distances, and the heights of the first limiting grooves 515 and the second limiting grooves 516 decrease successively. By setting the heights of the first limiting grooves 515 and the second limiting grooves 516 to decrease successively, the pipeline can be gradually flattened and crushed, thereby effectively reducing damage to the tool 517.

[0041] like Figure 1-Figure 11 The lower part of the inner wall of the feed pipe 3 is arranged in an inclined surface, the hammer roller 511 and the squeeze roller 512 are both located at the inclined surface, the second limiting groove 516 of the squeeze roller 512 is provided with meshing teeth 561 and meshing grooves 562, the meshing teeth 561 and meshing grooves 562 on the two squeeze rollers 512 are arranged in meshing, the squeeze roller 512 and the crushing roller 513 are driven to rotate by the third motor 521 and the fourth motor 522 respectively, through the meshing setting of the meshing teeth 561 and the meshing grooves 562, it is convenient to squeeze or tear the pipe passing through the two squeeze rollers 512 into small pieces by meshing, and by setting the lower part of the inner wall of the feed pipe 3 as an inclined surface, it is convenient to drain the splashed debris to the bottom to avoid the debris remaining in the feed pipe 3.

[0042] like Figure 1-Figure 11 There are four guide plates 301, which are respectively arranged on the upper and lower sides of the feed pipe 3 between the hammer roller 511 and the squeezing roller 512 and between the squeezing roller 512 and the crushing roller 513 through the support frame 311. The guide plates 301 are arranged in an arc shape and are close to the hammer roller 511, the squeezing roller 512, and the crushing roller 513 but not in contact. The pipeline is guided to the next stage through the arranged guide plates 301.

[0043] like Figure 1-Figure 11 The crushing mechanism includes a crushing shaft 801, a first crushing blade 802 and a second crushing blade 803, the first crushing blade 802 and the second crushing blade 803 are arranged on the crushing shaft 801, the crushing shaft 801 is provided with two and are respectively tilted and rotated on the inner shell 2, one end of the crushing shaft 801 penetrates the inner shell 2 and the crushing shell 1 and extends outside, and a fifth motor 10 is arranged outside the crushing shell 1, and the crushing shaft 801 is driven to rotate by the fifth motor 10. The crushing shaft 801 is tilted and rotated in the inner shell 2, so that the pipeline fragments are in contact with the first crushing blade 802 and the second crushing blade 803, and the range of splashing after cutting and crushing is wider. Here, the fragments crushed by the blade on a crushing shaft 801 are more likely to hit other blades, thereby increasing the probability of secondary crushing and achieving better crushing effect.

[0044] like Figure 1-Figure 11The first crushing blade 802 is arranged at the upper end of the crushing shaft 801, and the second crushing blade 803 is provided with multiple pieces and the diameter is smaller than the diameter of the first crushing blade 802. The first crushing blade 802 is used to cut the fragments falling from above, and the second crushing blade 803 is used to cut the fragments lifted from below.

[0045] like Figure 1-Figure 11 The reciprocating mechanism includes a shaft body 901 and a fixed cylinder 902, the shaft body 901 is rotatably arranged on the inner wall of the pulverizing shell 1 and driven to rotate by the sixth motor 11, a slide groove group is arranged on the shaft body 901, and the slide groove group is provided with multiple, and the slide groove group includes an inclined slide groove 903, a longitudinal slide groove 904 and a transverse slide groove 905, one end of the transverse slide groove 905 is connected with the upper end of the inclined slide groove 903, the lower end of the inclined slide groove 903 is connected with the lower end of the longitudinal slide groove 904, and the longitudinal slide groove 904 is connected with one end of the transverse slide groove 905 of the next group of the slide groove group, the fixed cylinder 902 is fixedly arranged in the pulverizing shell 1 and a slider 922 is provided at the lower part of the interior through a second spring 921, one end of the slider 922 passes through the fixed cylinder 902 and is slidably connected to the slide groove group, and the upper part of the slider 922 is connected to the The piston 102 is assembled and connected at the center position below the piston 102, driving the sixth motor 11 to drive the shaft body 901 to rotate. The second spring 921 in the initial state pushes the slider 922 to the top, and the rotation of the inclined slide groove 903 squeezes the slider 922 downward, and the second spring 921 is compressed to the bottom. At this time, the slider 922 rotates from the lower end of the inclined slide groove 903 to the lower end of the longitudinal slide groove 904. At this time, the second spring 921 limits its rapid rebound, driving the slider 922 and the upper piston 102 to move rapidly upward. At this time, the slider 922 is located at the upper end of the longitudinal slide groove 904, and the shaft body 901 continues to rotate, and the slider 922 moves on the horizontal slide groove 905 until it moves to the inclined slide groove 903 to repeat the above steps. Through the rapid rebound of the second spring 921, gas can be quickly filled into the gas chamber 201, so as to facilitate the rapid rebound of the fragments on the elastic membrane 202.

[0046] Working principle: When the plastic pipe is crushed, one end of multiple pipes is inserted into the feed end of the feed pipe 3 so that each pipe corresponds to a first limiting groove 515. The pipes pass between the two hammer rollers 511, the squeezing roller 512 and the crushing roller 513 in sequence. When passing between the two hammer rollers 511, the hammer roller 511 vibrates up and down under the rotation of the eccentric wheel 514. The strong force of the vibration can compress the distance between the two hammer rollers 511, thereby squeezing the pipe, flattening the pipe or directly crushing it. The pipe is continuously pushed into the feed pipe 3, and the rotation of the two hammer rollers 511 guides the pipe to the deep of the feed pipe 3, and the pipe is flattened or crushed. The pipe is introduced between the two squeezing rollers 512 under the guiding effect of the guide plate 301, and the pipe that is not completely flattened by the hammer roller 511 is further squeezed and crushed. The squeezing roller 512 is located at the corner of the feed pipe 3. The pipe needs to be bent at a certain angle when passing between the two squeezing rollers 512, which can further increase the degree of tearing and fragmentation of the pipe. The pipe squeezed by the squeezing roller 512 is flat, which is more convenient for crushing by the crushing roller 513. The squeezed sheet pipe and pipe fragments fall between the two crushing rollers 513 under the guiding effect of the guide plate 301. The cutters 517 on the two crushing rollers 513 cut the pipe and pipe fragments into smaller pieces. The pipe is crushed into small pieces by the cooperation of the hammer roller 511, the squeezing roller 512 and the crushing roller 513, and finally cut by the cutter 517 on the crushing roller 513, so as to avoid causing great damage to the cutter 517 during direct cutting, and to extend the service life of the cutter 517 to a certain extent. The pipe fragments fall into the inner shell 2, and are rotated and cut into smaller pieces after contacting the crushing mechanism, and are thrown toward the side wall of the inner shell 2. Some of the small pieces cut into small enough pieces can pass through the discharge hole 203 on the inner shell 2 into the unloading space, slide downward under the action of gravity, and finally be discharged from the discharge pipe 104, while some of the fragments that fail to pass through the discharge hole 203 are discharged in the inner shell 2. The gas cylinder 101 is inflated and discharged after the piston 102 moves upward, and the gas in the air cylinder 101 is quickly pushed into the air cylinder 201. The elastic membrane 202 is inflated and protrudes into the inner shell 2, so that the large pieces that originally fell on the elastic membrane 202 can be bounced up again, and the pieces fly upward and scatter and re-contact the crushing mechanism for further crushing. The above steps are repeated, and the gas cylinder 201 is immediately exhausted after being inflated, and then inflated and exhausted again. The above steps are repeated, and the pieces in the inner shell 2 can be repeatedly bounced up and discharged after being crushed, thereby ensuring the crushing quality of the pipeline.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A plastic waste pipe crushing and recovery device, characterized in that: The invention comprises a pulverizing shell (1), an inner shell (2), a feed pipe (3), a feed mechanism and a crushing mechanism, wherein the inner shell (2) is arranged inside the pulverizing shell (1) and a discharge space is left between the inner shell (2) and the outer wall of the pulverizing shell (1), the crushing mechanism is arranged inside the inner shell (2), the feed pipe (3) is in a right-angle structure and the lower end is connected to the upper end of the inner shell (2), the feed mechanism is arranged inside the feed pipe (3), a splash plate (4) is rotatably arranged above one end of the feed pipe (3) away from the pulverizing shell (1), the feed mechanism comprises a hammer roller (511), a squeeze roller (512) and a crushing mechanism. The crushing roller (513) is provided with two hammer rollers (511), the squeezing roller (512) and the crushing roller (513) respectively and are arranged to rotate in opposite directions. The two ends of the hammer roller (511) are rotatably arranged at the two ends of the feeding end of the feeding pipe (3). The two hammer rollers (511) are arranged up and down and are driven to rotate by the first motor (6) and the second motor (7) respectively. The two ends of the upper hammer roller (511) are slidably arranged up and down in the feeding pipe (3). The two ends of the hammer roller (511) are linked to each other and are provided with eccentric wheels (514). The crushing roller (513) is rotatably arranged near the feeding pipe (3). The inner wall of one end of the pulverizing shell (1) is provided with two squeezing rollers (512) rotatably arranged at the corner of the feed pipe (3); the inner wall of the feed pipe (3) between the squeezing roller (512), the hammer roller (511) and the crushing roller (513) is provided with a guide plate (301); the squeezing roller (512), the hammer roller (511) and the crushing roller (513) are respectively provided with a plurality of first limiting grooves (515) and second limiting grooves (516) at equal distances; the crushing roller (513) is provided with a cutter (517); an air cylinder (101) is provided at the lower part of the pulverizing shell (1); the air cylinder (101) A piston (102) is provided in an inner sealing sliding manner, and the piston (102) is driven to move by a reciprocating mechanism. An air pipe (103) is provided in communication with an air cylinder (101) above the piston (102). An air bin (201) is provided in communication with the lower end of the inner shell (2). An elastic membrane (202) is provided in a sealing manner at the upper edge of the air bin (201). An output end of the air pipe (103) extends into a closed space between the elastic membrane (202) and the air bin (201). A plurality of discharge holes (203) are evenly provided on the side wall of the inner shell (2), and a discharge pipe (104) is provided at the lower end of the pulverizing shell (1).

2. The device for crushing and recovering waste plastic pipes according to claim 1, characterized in that: Slide rails (302) are symmetrically arranged on the inner wall of the feed pipe (3) at both ends of the upper hammer roller (511); the end surface of the hammer roller (511) is linked with the eccentric wheel (514) through a rotating shaft (303); the rotating shaft (303) passes through the slide rail (302); the first motor (6) is slidably arranged outside the feed pipe (3) up and down; the first motor (6) is linked with the rotating shaft (303); the upper part of the upper hammer roller (511) and the upper part of the inner wall of the feed pipe (3) do not contact each other.

3. The device for crushing and recovering waste plastic pipes according to claim 2, characterized in that: A rotating block (321) is rotatably arranged in the slide rail (302), the rotating block (321) is fixedly sleeved outside the rotating shaft (303) and is slidably arranged in the slide rail (302) up and down, a slide plate (323) is arranged above the slide rail (302) through a first spring (322), the slide plate (323) is located above the rotating block (321), and a hammer block (518) is arranged at the first limiting groove (515) of the hammer roller (511).

4. The device for crushing and recovering waste plastic pipes according to claim 1, characterized in that: A fixed plate (304) is provided above the feeding end of the feeding pipe (3); the splash plate (4) is located between the fixed plate (304) and the hammer roller (511); one side of the splash plate (4) is in contact with the fixed plate (304); a bracket (401) is provided below the feeding pipe (3) below the splash plate (4); a through groove is provided between the bottom of the splash plate (4) and the top of the bracket (401); and a soft pad (402) is provided below the splash plate (4).

5. The device for crushing and recovering waste plastic pipes according to claim 1, characterized in that: A plurality of the first limiting grooves (515) and the second limiting grooves (516) are arranged at equal distances, and the heights of the first limiting grooves (515) and the second limiting grooves (516) decrease in sequence.

6. The device for crushing and recovering waste plastic pipes according to claim 1, characterized in that: The lower part of the inner wall of the feeding pipe (3) is arranged in an inclined surface, the hammer roller (511) and the squeezing roller (512) are both located at the inclined surface, the second limiting groove (516) of the squeezing roller (512) is provided with meshing teeth (561) and meshing grooves (562), the meshing teeth (561) and the meshing grooves (562) on the two squeezing rollers (512) are arranged in meshing arrangement, and the squeezing roller (512) and the crushing roller (513) are driven to rotate by the third motor (521) and the fourth motor (522) respectively.

7. The device for crushing and recovering waste plastic pipes according to claim 6, characterized in that: Four guide plates (301) are provided and are respectively arranged on the upper and lower sides of the feed pipe (3) between the hammer roller (511) and the squeeze roller (512) and between the squeeze roller (512) and the crushing roller (513) through a support frame (311). The guide plates (301) are arranged in an arc shape and are close to the hammer roller (511), the squeeze roller (512) and the crushing roller (513) but not in contact.

8. The device for crushing and recovering waste plastic pipes according to claim 1, characterized in that: The crushing mechanism comprises a crushing shaft (801), a first crushing blade (802) and a second crushing blade (803); the first crushing blade (802) and the second crushing blade (803) are arranged on the crushing shaft (801); the crushing shaft (801) is provided with two and is respectively arranged on the inner shell (2) in an inclined and rotatable manner; one end of the crushing shaft (801) penetrates the inner shell (2) and the crushing shell (1) and extends outside; a fifth motor (10) is arranged outside the crushing shell (1); and the crushing shaft (801) is driven to rotate by the fifth motor (10).

9. The device for crushing and recovering waste plastic pipes according to claim 8, characterized in that: The first crushing blade (802) is arranged at the upper end of the crushing shaft (801), and the second crushing blade (803) is provided in plurality and has a diameter smaller than that of the first crushing blade (802).

10. The device for crushing and recovering waste plastic pipes according to claim 1, characterized in that: The reciprocating mechanism comprises a shaft (901) and a fixed cylinder (902); the shaft (901) is rotatably arranged on the inner wall of the pulverizing shell (1) and driven to rotate by a sixth motor (11); a slide groove group is arranged on the shaft (901); the slide groove group is provided with a plurality of slide grooves, the slide groove group comprises an inclined slide groove (903), a longitudinal slide groove (904) and a transverse slide groove (905); one end of the transverse slide groove (905) is connected to the upper end of the inclined slide groove (903); the lower end of the inclined slide groove (903) is connected to the longitudinal slide groove ( 904), the longitudinal slide groove (904) is connected with one end of the transverse slide groove (905) of the next group of the slide groove group, the fixed cylinder (902) is fixedly arranged in the pulverizing shell (1) and a slider (922) is provided at the lower part thereof through a second spring (921), one end of the slider (922) passes through the fixed cylinder (902) and is slidably connected with the slide groove group, and the upper part of the slider (922) is assembled and connected with the center position below the piston (102) through a connecting shaft (923).

Images