Recycling device for plastic extrusion waste

Abstract

The invention relates to the technical field of plastic production, and discloses a plastic extrusion waste recycling device which comprises a rack, a detection mechanism, a material cutting mechanism and a recycling mechanism, the recycling mechanism comprises a base, a recycling barrel, a supporting assembly, a cutting assembly, a crushing assembly, a lifting assembly, a moving assembly and a feeding assembly, and the base is slidably connected to the rack; the recycling barrel is connected with the base through the lifting assembly, the supporting assembly is connected to the recycling barrel, the cutting assembly is arranged on the inner wall of the recycling barrel and used for further cutting the extrusion barrel, the crushing assembly is connected to the side, close to the base, of the recycling barrel, and a discharging opening is formed in the side, close to the base, of the recycling barrel. A feeding port of the crushing assembly communicates with a discharging port of the recycling barrel, the crushing assembly communicates with the extrusion molding device through the feeding assembly, and the moving assembly drives the base to move in the direction close to or away from the extrusion barrel. The plastic extrusion waste treatment device has the effect of relieving the problem of low plastic extrusion waste treatment efficiency.

Description

Technical Field

[0001] The present application relates to the field of plastic production, and in particular to a recycling device for plastic extrusion waste. Background Art

[0002] Plastics are mainly composed of carbon, oxygen, hydrogen, nitrogen and other organic or inorganic elements. The finished product is solid, and it is a molten liquid during the manufacturing process. Therefore, it can be heated to melt, pressurized to make it flow, and cooled to solidify, forming various shapes. With the rapid development of the plastics industry and the continuous improvement of plastic performance, plastic parts have been more widely used. Plastic parts are replacing traditional metal parts in different fields. A well-designed plastic part can often replace multiple traditional metal parts, thereby simplifying the product structure and saving manufacturing costs.

[0003] In the process of extrusion, some solid waste will inevitably be generated due to factors such as raw material quality problems, cleaning and replacement of production equipment, and defective products generated during product quality testing. In particular, the waste generated during equipment debugging. When we are preparing to produce a certain specification of pipes, we usually need to start the machine and debug the equipment until the quality of the pipes meets the requirements. In this process, a certain amount of solid waste will be generated.

[0004] For the waste generated during the extrusion process, the unqualified parts are usually cut off and stored in a waste barrel. When the waste barrel is full or the production is completed, the waste is sent to be crushed into pellets for reuse. When the waste is stored in the waste barrel waiting to be reused, it is easy to absorb moisture in the air, so the pellets made of waste need to be dried in a dryer before use to avoid the presence of a large number of bubbles in the finished product due to moisture in the raw materials during the production process, which leads to unqualified products. At the same time, solid waste is easily contaminated by dust during the stacking process, which makes it impossible to recycle and reuse plastic waste, resulting in material waste.

[0005] At present, a Chinese invention patent application with the publication number CN118404792A discloses an extrusion processing device for plastic materials, including a frame, an extrusion barrel and a cooling box, wherein the frame is located at the end of the extrusion barrel and an extrusion motor is installed, a feeding barrel is arranged above the end of the extrusion barrel close to the extrusion motor, a first electric heating box is arranged outside the extrusion barrel, a discharge mold is also installed at the other end of the extrusion barrel, a cooling box is installed at the discharge end of the discharge mold, a cutting assembly is installed at the end of the cooling box, and the cutting assembly includes supports arranged mutually nested The ring and the inner ring, the ends of the support ring and the inner ring close to the cooling box are connected to each other, the other ends of the support ring and the inner ring are rotatably installed with a cutting knife, the inner wall of the inner ring is evenly distributed with four abutment plates, the abutment plates are used to detect the discharge status of the surfaces around the extruded tube; the frame is located on one side of the feeding barrel and is also equipped with a return material assembly, the return material assembly includes a cleaning box, a collecting hopper and a feeding box, the first guide rod and the second guide rod are respectively installed between the cleaning box and the collecting hopper and the feeding box, the collecting hopper is used to collect solid waste and return it from the feeding box to the feeding barrel after cleaning through the cleaning box.

[0006] With respect to the above-mentioned related technologies, the inventors believe that, in the process of plastic extrusion processing, the length of unqualified solid waste is difficult to determine. After the cutting component cuts the unqualified part, the unqualified waste is difficult to fall into the recycling component stably. If the fixed-length cutting method is adopted to cut the unqualified part using the cutting component, the efficiency of waste treatment will be affected. Moreover, the unqualified part after cutting by the cutting component is in a tubular shape, which is not conducive to subsequent transportation, and there is a defect of low waste treatment efficiency. Summary of the invention

[0007] In order to alleviate the problem of low efficiency in processing plastic extrusion waste, the present application provides a recycling device for plastic extrusion waste.

[0008] The present application provides a recycling device for plastic extrusion waste, which adopts the following technical solution: A recycling device for plastic extrusion waste, comprising a frame, a detection mechanism, a cutting mechanism and a recycling mechanism, wherein the detection mechanism is connected to the discharge end of the extrusion device, the detection mechanism is used to detect the discharge state of the surface around the extrusion tube, the cutting mechanism is arranged on the frame, the cutting mechanism is located on the side of the detection mechanism away from the extrusion device, the cutting mechanism is used to cut off the extrusion tube, the recycling mechanism is located on the side of the cutting mechanism away from the detection mechanism, the recycling mechanism comprises a base, a recycling cylinder, a supporting assembly, a cutting assembly, a crushing assembly, a lifting assembly, a moving assembly and a feeding assembly, the base is slidably connected to the On the frame, the recovery cylinder is connected to the base through a lifting assembly, the support assembly is connected to the recovery cylinder, the cutting assembly is arranged on the inner wall of the recovery cylinder, the cutting assembly is used to further cut the extrusion cylinder, the crushing assembly is connected to the side of the recovery cylinder close to the base, the side of the recovery cylinder close to the base is provided with a drop opening, the feed opening of the crushing assembly is connected with the drop opening of the recovery cylinder, the crushing assembly is connected with the extrusion device through the feeding assembly, the moving assembly drives the base to move in the direction of approaching or moving away from the extrusion cylinder, and the cutting mechanism, the lifting assembly and the moving assembly are all electrically connected to the detection mechanism.

[0009] By adopting the above technical scheme, a recovery mechanism is arranged on the side of the cutting mechanism away from the detection mechanism. During the debugging stage of the equipment, after the extruded tube is cooled and shaped in the cooling box, the detection mechanism is used to detect the discharge state of the surfaces around the extruded tube. During the debugging stage, the extruded tube that does not meet the requirements enters the recovery barrel. During the process of the extruded tube that does not meet the requirements entering the recovery barrel, the cutting component cuts the extruded tube along the axial direction to improve the convenience of subsequent crushing processing. When the detection mechanism detects that the discharge state of the extruded tube meets the requirements, the cutting mechanism cuts the extruded tube. When the cutting mechanism cuts the extruded tube, the support component is used to support the inner wall of the extruded tube to reduce the possibility of deformation of the extruded tube caused by the cutting mechanism cutting the extruded tube. The moving component drives the recovery barrel to move in the direction close to the cutting mechanism, so that the cutting component completely cuts off the unqualified extruded tube along the axial direction. The cut extruded tube enters the crushing component through the blanking port for crushing, thereby improving the crushing efficiency of the crushing component for unqualified extruded tubes. The feeding component will The crushed plastic fragments are transported to the extrusion device for reuse; the moving component drives the base to move away from the cutting mechanism, so that the support component is disengaged from the qualified part of the extruded tube, and the lifting component drives the recovery tube to descend, so that the recovery tube leaves the discharge route of the extrusion tube and continues the extrusion production; when the detection mechanism detects that the extruded tube discharge is abnormal, the cutting mechanism cuts off the qualified part of the extruded tube, and the lifting component drives the recovery tube to rise to the discharge route of the extrusion tube. During the debugging process, the above operation is repeated to recycle the extruded tubes that do not meet the requirements; the setting of the recovery tube and the cutting component improves the processing efficiency of plastic extrusion waste and the stability of plastic extrusion waste recycling. In addition, when recycling plastic extrusion waste, the moving component and the lifting component cooperate to move the recovery tube to a position close to the cutting mechanism, so that the recovery tube and the extrusion mechanism form a closed loop, reducing the possibility of dust contamination of plastic waste during the recycling process, resulting in the inability to recycle and reuse plastic waste, resulting in material waste.

[0010] Optionally, the support assembly includes a first motor, a transmission rod and a plurality of support rods, the first motor is fixedly connected to one end of the recovery drum away from the material cutting mechanism, the transmission rod is located inside the recovery drum, the transmission rod is coaxially arranged with the recovery drum, one end of the transmission rod is coaxially fixedly connected to the output shaft of the first motor, the other end of the transmission rod is coaxially fixedly connected with a transmission disk, the plurality of support rods are arranged at intervals along the circumference of the transmission disk, the support rod is slidably connected to the transmission disk along the radial direction of the transmission disk, the end of the support rod away from the transmission rod is rotatably connected with a roller, and the rotation axis of the roller is parallel to the transmission rod, One end of the support rod close to the transmission rod is fixedly connected with a ferromagnetic metal block, the transmission rod is sleeved with an electromagnet, the electromagnet is connected to one end of a transmission disk close to the transmission rod, the support rod is sleeved with a spring, one end of the spring is fixedly connected to the support rod, and the other end of the spring is fixedly connected to the side wall of the transmission disk, a first distance detection sensor is arranged on the inner wall of the recovery cylinder, the first distance detection sensor is used to detect whether an extruded tube enters the recovery cylinder, the first distance detection sensor is electrically connected to the electromagnet, and the support rod is located on a side of the first distance detection sensor close to the material cutting mechanism.

[0011] By adopting the above technical solution, a ferromagnetic metal block is fixedly connected to one end of the support rod close to the transmission rod, and before the extruded tube that does not meet the requirements enters the recovery barrel, the electromagnet is used to attract the ferromagnetic metal block, so that the distance between the roller and the transmission rod is smaller than the radius of the extruded tube, the spring is in a compressed state, and a first distance detection sensor is arranged on the inner wall of the recovery barrel. When the first distance detection sensor detects that the extruded tube that does not meet the requirements enters the recovery barrel, the first distance detection sensor transmits a signal to the electromagnet, and the electromagnet is powered off to cause the support rod to move away from the transmission rod under the elastic force of the spring until the roller is close to the extruded tube. The inner wall of the tube is abutted, and the inner wall of the extruded tube is supported by rollers, thereby reducing the possibility of deformation of the extruded tube when the cutting mechanism cuts the extruded tube; the first motor drives the transmission rod to rotate, and the transmission rod drives multiple rollers to rotate through multiple support rods, thereby improving the stability of the support for the extruded tube. The rollers are rotatably connected to the support rods, and the rollers are subject to less wear in the process of supporting the extruded tube, thereby increasing the service life of the support assembly. The design of the spring not only provides the reset force of the support rod, but also increases the stability of the support assembly. During the waste processing process, the spring can absorb impact and vibration to protect other components from damage.

[0012] Optionally, the cutting assembly includes a plurality of cutters, the plurality of cutters are arranged at intervals along the circumference of the transmission rod, the cutters are fixedly connected to the inner wall of the recovery cylinder, the cutters are located at one end of the recovery cylinder close to the cutting mechanism, the blades of the cutters face the cutting mechanism, and the cutters are used to cut the extruded tube along the axial direction of the extruded tube.

[0013] By adopting the above technical scheme, a plurality of cutters are fixedly connected to the inner wall of the recovery drum, and the cutters are located at one end of the recovery drum close to the cutting mechanism. When the extruded tube that does not meet the requirements enters the recovery drum, the cutters are used to cut the extruded tube along the axial direction of the extruded tube, thereby cutting the extruded tube into a plurality of arc-shaped plates. The cut arc-shaped plates fall into the crushing assembly, thereby improving the efficiency of the crushing assembly in crushing the unqualified parts of the extruded tube.

[0014] Optionally, a second distance detection sensor is provided on the inner wall of the recovery cylinder, the second distance detection sensor is close to the end of the recovery cylinder away from the cutting mechanism, the second distance detection sensor is used to detect the feeding length of the extruded tube, and the second distance detection sensor is electrically connected to the cutting mechanism.

[0015] By adopting the above technical scheme, a second distance detection sensor is arranged on the inner wall of the recovery cylinder, and the second distance detection sensor is close to the end of the recovery cylinder away from the cutting mechanism. The second distance detection sensor is used to detect the feeding length of the extruded tube. When the unqualified extruded tube enters the recovery cylinder for a certain length, the second distance detection sensor transmits a signal to the cutting mechanism, and the cutting mechanism cuts the extruded tube, thereby avoiding excessive concentration of waste material processing by the crushing component, improving the processing efficiency of the crushing component, and reducing the possibility of the recycling device affecting the discharge of the extrusion mechanism.

[0016] Optionally, the moving component includes a first electric push rod, which is fixedly connected to the frame, and a piston rod of the first electric push rod is fixedly connected to the base. The first electric push rod drives the base to move in a direction close to or away from the material cutting mechanism, and the first electric push rod is electrically connected to the detection mechanism.

[0017] Optionally, the lifting assembly includes a second electric push rod, a first guide rod and a second guide rod, the second electric push rod is fixedly connected to the base, the piston rod of the second electric push rod is fixedly connected to the recovery cylinder, one end of the first guide rod is fixedly connected to the recovery cylinder, the other end of the first guide rod is passed through one end of the second guide rod, the first guide rod and the second guide rod are coaxially arranged, the other end of the second guide rod is fixedly connected to the base, and the electric push rod is electrically connected to the detection mechanism.

[0018] By adopting the above technical scheme, the recovery drum is connected to the base through the second electric push rod, and the second electric push rod is electrically connected to the detection mechanism. When the detection mechanism detects that the extrusion device discharges abnormally, the second electric push rod is used to drive the recovery drum to move to the discharge path of the extrusion device, and the recovery drum is used to crush and recycle the extruded tubes that do not meet the requirements. When the detection mechanism detects that the extrusion device discharges normally, the second electric push rod drives the recovery drum to move toward the base, so that the recovery drum leaves the discharge path of the extrusion drum and continues the extrusion production. The movement of the recovery drum is guided by the coordinated cooperation of the first guide rod and the second guide rod, thereby reducing the influence of the vibration of the crushing component during operation on the service life of the electric push rod and improving the stability of the recovery device.

[0019] Optionally, the crushing assembly includes a crushing box, a second motor and two crushing rollers, the crushing box is fixedly connected to the recovery drum, a feed port is provided at one end of the crushing box close to the recovery drum, the feed port of the crushing box is connected to the drop port of the recovery drum, the second motor is fixedly connected to the side wall of the crushing box, the crushing roller is rotatably connected between two opposite side walls of the crushing box, the rotation axis of the crushing roller is parallel to the rotation axis of the transmission rod, the second motor is transmission-connected to the two crushing rollers, a discharge port is provided at one end of the crushing box away from the recovery drum, the discharge port is connected to the feeding assembly through a guide pipe, and the feeding assembly is connected to the feed assembly of the extrusion device.

[0020] By adopting the above technical scheme, a crushing box is fixedly connected below the recovery drum, the feed port of the crushing box is connected with the discharge port of the recovery drum, the crushing roller is rotatably connected between two opposite side walls of the crushing box, the rotation axis of the crushing roller is parallel to the rotation axis of the transmission rod, the cut arc plate enters the crushing box through the discharge port, the arc plate is crushed by the rotating crushing roller, the rotation axis of the crushing roller is parallel to the length direction of the arc plate, the possibility of material jamming during the crushing process is reduced, and the working efficiency of the crushing assembly is improved.

[0021] Optionally, the feeding assembly is a screw conveyor, the material guide pipe is a retractable hose, the material guide pipe is connected to the feed end of the screw conveyor, and the discharge end of the screw conveyor is connected to the feed assembly of the extrusion device.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: By arranging a recovery mechanism on the side of the cutting mechanism away from the detection mechanism, during the debugging stage of the equipment, after the extruded tube is cooled and shaped in the cooling box, the detection mechanism is used to detect the discharge state of the surfaces around the extruded tube. During the debugging stage, the extruded tube that does not meet the requirements enters the recovery barrel. During the process of the extruded tube that does not meet the requirements entering the recovery barrel, the cutting component cuts the extruded tube along the axial direction to improve the convenience of subsequent crushing processing. When the detection mechanism detects that the discharge state of the extruded tube meets the requirements, the cutting mechanism cuts the extruded tube. When the cutting mechanism cuts the extruded tube, the support component is used to support the inner wall of the extruded tube to reduce the possibility of deformation of the extruded tube caused by the cutting mechanism cutting the extruded tube. The moving component drives the recovery barrel to move in the direction close to the cutting mechanism, so that the cutting component completely cuts off the unqualified extruded tube along the axial direction. The cut extruded tube enters the crushing component through the blanking port for crushing, thereby improving the crushing efficiency of the crushing component for the unqualified extruded tube. The feeding component will crush the broken The plastic fragments are transported to the feeding assembly for reuse; the moving assembly drives the base to move away from the cutting mechanism, so that the support assembly is disengaged from the qualified part of the extruded tube, and the lifting assembly drives the recovery cylinder to descend, so that the recovery cylinder leaves the discharge route of the extrusion tube and continues the extrusion production; when the detection mechanism detects that the extruded tube discharge is abnormal, the cutting mechanism cuts off the qualified part of the extruded tube, and the lifting assembly drives the recovery cylinder to rise to the discharge route of the extrusion tube. During the debugging process, the above operation is repeated to recycle the extruded tubes that do not meet the requirements. The setting of the recovery cylinder and the cutting assembly improves the processing efficiency of plastic extrusion waste and the stability of plastic extrusion waste recycling. In addition, when recycling plastic extrusion waste, the moving assembly and the lifting assembly cooperate to move the recovery cylinder to a position close to the cutting mechanism, so that the recovery cylinder and the extrusion mechanism form a closed loop, reducing the possibility of dust contamination of plastic waste during the recycling process, resulting in the inability to recycle and reuse plastic waste, resulting in material waste; By fixing a ferromagnetic metal block at one end of the support rod close to the transmission rod, before the extruded tube that does not meet the requirements enters the recovery barrel, the ferromagnetic metal block is attracted by the electromagnet, so that the distance between the roller and the transmission rod is smaller than the radius of the extruded tube, the spring is in a compressed state, and a first distance detection sensor is arranged on the inner wall of the recovery barrel. When the first distance detection sensor detects that the extruded tube that does not meet the requirements enters the recovery barrel, the first distance detection sensor transmits a signal to the electromagnet, and the electromagnet is powered off to make the support rod move away from the transmission rod under the elastic force of the spring until the roller abuts against the inner wall of the extruded tube, and the roller is used to support the inner wall of the extruded tube, thereby reducing the possibility of deformation of the extruded tube when the cutting mechanism cuts the extruded tube; A plurality of cutters are fixedly connected to the inner wall of the recovery cylinder, and the cutters are located at one end of the recovery cylinder close to the cutting mechanism. When the extruded tube that does not meet the requirements enters the recovery cylinder, the cutters are used to cut the extruded tube along the axial direction of the extruded tube, thereby cutting the extruded tube into a plurality of arc plates. The cut arc plates fall into the crushing assembly, thereby improving the efficiency of the crushing assembly in crushing the unqualified parts of the extruded tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a structural schematic diagram of the recovery mechanism part in the embodiment of the present application; Figure 3 It is a structural schematic diagram of the support component part in the embodiment of the present application; Figure 4 It is a cross-sectional view of the supporting component part in the embodiment of the present application.

[0024] Figure numerals: 100, frame; 200, detection mechanism; 300, material cutting mechanism; 400, recovery mechanism; 410, base; 420, recovery cylinder; 421, first distance detection sensor; 422, second distance detection sensor; 430, support assembly; 431, first motor; 432, transmission rod; 433, support rod; 434, transmission disk; 435, roller; 436, ferromagnetic metal block; 437, electromagnet; 438, spring; 440, cutting group Components; 441, cutter; 450, crushing assembly; 451, crushing box; 452, second motor; 453, crushing roller; 454, guide pipe; 460, lifting assembly; 461, second electric push rod; 462, first guide rod; 463, second guide rod; 470, first electric push rod; 480, screw conveyor; 500, extrusion device; 510, extrusion motor; 520, extrusion barrel; 530, feeding assembly; 540, discharge mold; 550, cooling box. DETAILED DESCRIPTION

[0025] In order to more clearly explain the overall concept of this application, the following Figure 1-4 This application is described in further detail.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0027] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] The present application discloses a device for recycling plastic extrusion waste. Figure 1 and Figure 2 A recycling device for plastic extrusion waste includes a frame 100, a detection mechanism 200, a material breaking mechanism 300 and a recycling mechanism 400. The frame 100 is also equipped with an extrusion device 500, which includes an extrusion motor 510, an extrusion barrel 520, a feed assembly 530, a discharge mold 540 and a cooling box 550. The extrusion barrel 520 is installed on the frame 100, the extrusion motor 510 is connected to one end of the extrusion barrel 520, the discharge mold 540 is connected to the other end of the extrusion barrel 520, the feed assembly 530 is arranged at one end of the extrusion barrel 520 close to the extrusion motor 510, the feed assembly 530 is connected to the extrusion barrel 520, and the cooling box 550 is connected to one end of the discharge mold away from the extrusion barrel 520. The detection mechanism 200 is connected to the discharge end of the cooling box 550, and the detection mechanism 200 is used to detect the discharge state of the surface around the extrusion tube. The material cutting mechanism 300 is installed on the frame 100 and is located on a side of the detection mechanism 200 away from the cooling box 550. The material cutting mechanism 300 is used to cut off the extruded tube. The recycling mechanism 400 is located on a side of the material cutting mechanism 300 away from the detection mechanism 200.

[0029] Reference Figure 1 and Figure 2The recycling mechanism 400 includes a base 410, a recycling cylinder 420, a support assembly 430, a cutting assembly 440, a crushing assembly 450, a lifting assembly 460, a moving assembly and a feeding assembly. The base 410 is slidably connected to the frame 100, and the recycling cylinder 420 is connected to the base 410 through the lifting assembly 460. The support assembly 430 is connected to the recycling cylinder 420, and the cutting assembly 440 is arranged on the inner wall of the recycling cylinder 420, and the cutting assembly 440 is used to further cut the extrusion cylinder. The crushing assembly 450 is connected to the side of the recycling cylinder 420 close to the base 410, and the side of the recycling cylinder 420 close to the base 410 is provided with a blanking port, and the feed port of the crushing assembly 450 is connected to the blanking port of the recycling cylinder 420. The crushing assembly 450 is connected to the feed assembly 530 through the feeding assembly, and the moving assembly drives the base 410 to move in the direction close to or away from the extrusion cylinder 520. The material cutting mechanism 300 , the lifting assembly 460 and the moving assembly are all electrically connected to the detection mechanism 200 .

[0030] By setting up a recovery mechanism 400 on the side of the cutting mechanism 300 away from the detection mechanism 200, during the debugging stage of the equipment, after the extruded tube is cooled and shaped in the cooling box 550, the detection mechanism 200 is used to detect the discharge status of the surface around the extruded tube. During the debugging stage, the extruded tube that does not meet the requirements enters the recovery barrel 420. In the process of the extruded tube that does not meet the requirements entering the recovery barrel 420, the cutting component 440 cuts the extruded tube along the axial direction of the extruded tube, thereby improving the convenience of subsequent crushing processing. When the detection mechanism 200 detects that the discharge state of the extruded tube meets the requirements, the cutting mechanism 300 cuts the extruded tube. When the cutting mechanism 300 cuts the extruded tube, the inner wall of the extruded tube is supported by the support component 430 to reduce the possibility of deformation of the extruded tube caused by the cutting mechanism 300. The moving component drives the recovery cylinder 420 to move toward the cutting mechanism 300, so that the cutting component 440 completely cuts off the unqualified extruded tube along the axial direction. The cut extruded tube enters the crushing component 450 through the drop port for crushing, thereby improving the crushing efficiency of the crushing component 450 for unqualified extruded tubes. The feeding component transports the crushed plastic fragments to the feeding component 530 for reuse. The moving assembly drives the base 410 to move away from the cutting mechanism 300, so that the support assembly 430 is disengaged from the qualified part of the extruded tube, and the lifting assembly 460 drives the recovery tube 420 to descend, so that the recovery tube 420 leaves the discharge route of the extrusion tube 520 and continues the extrusion production. When the detection mechanism 200 detects that the extruded tube discharge is abnormal, the cutting mechanism 300 cuts off the qualified part of the extruded tube, and the lifting assembly 460 drives the recovery tube 420 to rise to the discharge route of the extrusion tube 520. During the debugging process, the above operations are repeated to recycle the extruded tubes that do not meet the requirements.

[0031] The provision of the recovery cylinder 420 and the cutting assembly 440 improves the processing efficiency of the plastic extrusion waste and the stability of the recycling of the plastic extrusion waste. In addition, when the plastic extrusion waste is recycled, the moving assembly and the lifting assembly 460 cooperate to move the recovery cylinder 420 to a position close to the cutting mechanism 300, so that the recovery cylinder 420 and the extrusion mechanism form a closed loop, thereby reducing the possibility of dust contamination of the plastic waste during the recycling process, resulting in the inability to recycle and reuse the plastic waste, resulting in material waste.

[0032] Reference Figure 3 and Figure 4 The support assembly 430 includes a first motor 431, a transmission rod 432, and a plurality of support rods 433. The first motor 431 is fixedly connected to one end of the recovery drum 420 away from the material cutting mechanism 300, the transmission rod 432 is located inside the recovery drum 420, the transmission rod 432 is coaxially arranged with the recovery drum 420, and one end of the transmission rod 432 is coaxially fixedly connected with the output shaft of the first motor 431. The other end of the transmission rod 432 is coaxially fixedly connected with a transmission disk 434, and the plurality of support rods 433 are arranged at intervals along the circumference of the transmission disk 434, and the support rods 433 are slidably connected with the transmission disk 434 along the radial direction of the transmission disk 434. The end of the support rod 433 away from the transmission rod 432 is rotatably connected to a roller 435, and the rotation axis of the roller 435 is parallel to the transmission rod 432. The end of the support rod 433 close to the transmission rod 432 is fixedly connected to a ferromagnetic metal block 436. The transmission rod 432 is sleeved with an electromagnet 437, and the electromagnet 437 is connected to one end of a transmission disk 434 close to the transmission rod 432. The support rod 433 is sleeved with a spring 438, one end of the spring 438 is fixedly connected to the support rod 433, and the other end of the spring 438 is fixedly connected to the side wall of the transmission disk 434. A first distance detection sensor 421 is provided on the inner wall of the recovery cylinder 420, and the first distance detection sensor 421 is used to detect whether an extruded tube enters the recovery cylinder 420. The first distance detection sensor 421 is electrically connected to the electromagnet 437, and the support rod 433 is located on the side of the first distance detection sensor 421 close to the material breaking mechanism 300.

[0033] By fixing a ferromagnetic metal block 436 at one end of the support rod 433 near the transmission rod 432, before the extruded tube that does not meet the requirements enters the recovery tube 420, the electromagnet 437 is used to attract the ferromagnetic metal block 436, so that the distance between the roller 435 and the transmission rod 432 is less than the radius of the extruded tube, and the spring 438 is in a compressed state. A first distance detection sensor 421 is arranged on the inner wall of the recovery tube 420. When the first distance detection sensor 421 detects that the extruded tube that does not meet the requirements enters the recovery tube 420, the first distance detection sensor 421 transmits a signal to the electromagnet 437, and the electromagnet 437 is powered off to make the support rod 433 move away from the transmission rod 432 under the elastic force of the spring 438 until the roller 435 abuts against the inner wall of the extruded tube, and the roller 435 is used to support the inner wall of the extruded tube, thereby reducing the possibility of deformation of the extruded tube when the cutting mechanism 300 cuts the extruded tube. The first motor 431 drives the transmission rod 432 to rotate, and the transmission rod 432 drives multiple rollers 435 to rotate through multiple support rods 433, thereby improving the stability of supporting the extruded tube; the rollers 435 are rotatably connected to the support rods 433, and the rollers 435 are less worn in the process of supporting the extruded tube, thereby improving the service life of the support assembly 430. The design of the spring 438 not only provides a reset force for the support rod 433, but also increases the stability of the support assembly 430. During the waste processing process, the spring 438 can absorb impact and vibration to protect other components from damage.

[0034] Reference Figure 2 The cutting assembly 440 includes a plurality of cutters 441, which are arranged at intervals along the circumference of the transmission rod 432. The cutters 441 are fixedly connected to the inner wall of the recovery tube 420, and the cutters 441 are located at one end of the recovery tube 420 close to the material cutting mechanism 300, and the blades of the cutters 441 face the material cutting mechanism 300. The cutters 441 are used to cut the extruded tube along the axial direction of the extruded tube.

[0035] By fixing a plurality of cutters 441 on the inner wall of the recovery cylinder 420, the cutters 441 are located at one end of the recovery cylinder 420 close to the cutting mechanism 300. When the extruded tube that does not meet the requirements enters the recovery cylinder 420, the cutters 441 are used to cut the extruded tube along the axial direction of the extruded tube, thereby cutting the extruded tube into a plurality of arc-shaped plates. The cut arc-shaped plates fall into the crushing assembly 450, thereby improving the efficiency of the crushing assembly 450 in crushing the unqualified parts of the extruded tube.

[0036] Reference Figure 2 A second distance detection sensor 422 is installed on the inner wall of the recovery cylinder 420. The second distance detection sensor 422 is close to the end of the recovery cylinder 420 away from the cutting mechanism 300. The second distance detection sensor 422 is used to detect the feeding length of the extruded tube. The second distance detection sensor 422 is electrically connected to the cutting mechanism 300.

[0037] By installing a second distance detection sensor 422 on the inner wall of the recycling cylinder 420, the second distance detection sensor 422 is close to the end of the recycling cylinder 420 away from the cutting mechanism 300, and the second distance detection sensor 422 is used to detect the feeding length of the extruded tube. When the unqualified extruded tube enters the recycling cylinder 420 for a certain length, the second distance detection sensor 422 transmits a signal to the cutting mechanism 300, and the cutting mechanism 300 cuts the extruded tube, thereby avoiding the crushing component 450 from processing the waste material too concentratedly, improving the processing efficiency of the crushing component 450, and reducing the possibility of the recycling device affecting the discharge of the extrusion mechanism.

[0038] Reference Figure 1 and Figure 2 The moving assembly includes a first electric push rod 470, which is fixedly connected to the frame 100, a piston rod of which is fixedly connected to the base 410, and the first electric push rod 470 drives the base 410 to move in a direction close to or away from the material-breaking mechanism 300, and the first electric push rod 470 is electrically connected to the detection mechanism 200. The first electric push rod drives the base 410 to move in a direction close to or away from the material-breaking mechanism 300, thereby driving the recovery cylinder 420 installed on the base 410 to move. During the movement of the recovery cylinder 420, the cutter 441 completely cuts the extruded tube into a plurality of independent arc plates.

[0039] The lifting assembly 460 includes a second electric push rod 461, a first guide rod 462, and a second guide rod 463. The second electric push rod 461 is fixedly connected to the base 410, and the piston rod of the second electric push rod 461 is fixedly connected to the recovery cylinder 420. One end of the first guide rod 462 is fixedly connected to the recovery cylinder 420, and the other end of the first guide rod 462 is inserted into one end of the second guide rod 463. The first guide rod 462 and the second guide rod 463 are coaxially arranged, and the other end of the second guide rod 463 is fixedly connected to the base 410. The electric push rod is electrically connected to the detection mechanism 200.

[0040] The recovery cylinder 420 is connected to the base 410 through the second electric push rod 461, and the second electric push rod 461 is electrically connected to the detection mechanism 200. When the detection mechanism 200 detects that the extrusion device 500 discharges abnormally, the second electric push rod 461 is used to drive the recovery cylinder 420 to move to the discharge path of the extrusion device 500, and the recovery cylinder 420 is used to crush and recycle the extrusion tubes that do not meet the requirements; when the detection mechanism 200 detects that the extrusion device 500 discharges normally, the second electric push rod 461 drives the recovery cylinder 420 to move toward the base 410, so that the recovery cylinder 420 leaves the discharge path of the extrusion cylinder 520 and continues the extrusion production. The movement of the recovery cylinder 420 is guided by the coordinated cooperation of the first guide rod 462 and the second guide rod 463, so as to reduce the influence of the vibration of the crushing assembly 450 during operation on the service life of the electric push rod, and improve the stability of the operation of the recovery device.

[0041] The crushing assembly 450 includes a crushing box 451, a second motor 452 and two crushing rollers 453. The crushing box 451 is fixedly connected to the recycling drum 420, and a feed port is provided at one end of the crushing box 451 close to the recycling drum 420, and the feed port of the crushing box 451 is communicated with the drop port of the recycling drum 420. The second motor 452 is fixedly connected to the side wall of the crushing box 451, and the crushing rollers 453 are rotatably connected between two opposite side walls of the crushing box 451, and the rotation axis of the crushing rollers 453 is parallel to the rotation axis of the transmission rod 432, and the second motor 452 is transmission-connected with the two crushing rollers 453. A discharge port is provided at one end of the crushing box 451 away from the recycling drum 420, and the discharge port is communicated with the feeding assembly through the guide pipe 454, and the feeding assembly is communicated with the feeding assembly 530 of the extrusion device 500.

[0042] By fixing the crushing box 451 below the recovery cylinder 420, the feed port of the crushing box 451 is connected with the discharge port of the recovery cylinder 420, and the crushing roller 453 is rotatably connected between two opposite side walls of the crushing box 451, and the rotation axis of the crushing roller 453 is parallel to the rotation axis of the transmission rod 432, the cut arc plate enters the crushing box 451 through the discharge port, and the arc plate is crushed by the rotating crushing roller 453, and the rotation axis of the crushing roller 453 is parallel to the length direction of the arc plate, thereby reducing the possibility of material jamming during the crushing process and improving the working efficiency of the crushing assembly 450.

[0043] The feeding component is a screw conveyor 480 , and the guide pipe 454 is a retractable hose. The guide pipe 454 is connected to the feeding end of the screw conveyor 480 , and the discharge end of the screw conveyor 480 is connected to the feeding component 530 of the extrusion device 500 .

[0044] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0045] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A recycling device for plastic extrusion waste, characterized in that: The invention comprises a frame (100), a detection mechanism (200), a material cutting mechanism (300) and a recovery mechanism (400), wherein the detection mechanism (200) is connected to the discharge end of the extrusion device (500), the detection mechanism (200) is used to detect the discharge state of the surfaces around the extrusion tube, the material cutting mechanism (300) is arranged on the frame (100), the material cutting mechanism (300) is located on the side of the detection mechanism (200) away from the extrusion device (500), the material cutting mechanism (300) is used to cut the extrusion tube, the recovery mechanism (400) is located on the side of the material cutting mechanism (300) away from the detection mechanism (200), the recovery mechanism (400) comprises a base (410), a recovery cylinder (420), a support assembly (430), a cutting assembly (440), a crushing assembly (450), a lifting assembly (460), a moving assembly and a feeding assembly, and the base (410) is slidably connected to the frame (100). 0), the recovery cylinder (420) is connected to the base (410) through the lifting component (460), the support component (430) is connected to the recovery cylinder (420), the cutting component (440) is arranged on the inner wall of the recovery cylinder (420), and the cutting component (440) is used to further cut the extrusion cylinder, the crushing component (450) is connected to the side of the recovery cylinder (420) close to the base (410), and the side of the recovery cylinder (420) close to the base (410) is provided with a blanking port, the feed port of the crushing component (450) is connected to the blanking port of the recovery cylinder (420), the crushing component (450) is connected to the extrusion device (500) through the feeding component, and the moving component drives the base (410) to move in a direction close to or away from the extrusion cylinder (520), and the cutting mechanism (300), the lifting component (460) and the moving component are all electrically connected to the detection mechanism (200).

2. The device for recycling plastic extrusion waste according to claim 1, characterized in that: The support assembly (430) comprises a first motor (431), a transmission rod (432) and a plurality of support rods (433); the first motor (431) is fixedly connected to one end of the recovery drum (420) away from the material cutting mechanism (300); the transmission rod (432) is located inside the recovery drum (420); the transmission rod (432) is coaxially arranged with the recovery drum (420); one end of the transmission rod (432) is coaxial with the output shaft of the first motor (431); The transmission rod (432) is fixedly connected to the transmission plate (434) coaxially and fixedly connected to the other end of the transmission rod (432); a plurality of support rods (433) are arranged at intervals along the circumference of the transmission plate (434); the support rods (433) are slidably connected to the transmission plate (434) along the radial direction of the transmission plate (434); one end of the support rod (433) away from the transmission rod (432) is rotatably connected to a roller (435); the rotation axis of the roller (435) is aligned with the transmission rod (432) The support rod (433) is parallel to the transmission rod (432), one end of which is fixedly connected to a ferromagnetic metal block (436); the transmission rod (432) is provided with an electromagnet (437); the electromagnet (437) is connected to one end of a transmission disk (434) near the transmission rod (432); the support rod (433) is provided with a spring (438); one end of the spring (438) is fixedly connected to the support rod (433); the other end of the spring (438) is fixedly connected to the side wall of the transmission disk (434); a first distance detection sensor (421) is provided on the inner wall of the recovery barrel (420); the first distance detection sensor (421) is used to detect whether an extruded tube enters the recovery barrel (420); the first distance detection sensor (421) is electrically connected to the electromagnet (437); and the support rod (433) is located on a side of the first distance detection sensor (421) close to the material cutting mechanism (300).

3. The device for recycling plastic extrusion waste according to claim 2, characterized in that: The cutting assembly (440) comprises a plurality of cutters (441), the plurality of cutters (441) being arranged at intervals along the circumference of the transmission rod (432), the cutters (441) being fixedly connected to the inner wall of the recovery cylinder (420), the cutters (441) being located at one end of the recovery cylinder (420) close to the material cutting mechanism (300), the blade of the cutter (441) facing the material cutting mechanism (300), and the cutter (441) being used to cut the extruded tube along the axial direction of the extruded tube.

4. The device for recycling plastic extrusion waste according to claim 1, characterized in that: A second distance detection sensor (422) is provided on the inner wall of the recovery cylinder (420), the second distance detection sensor (422) being close to an end of the recovery cylinder (420) away from the material cutting mechanism (300), the second distance detection sensor (422) being used to detect the feeding length of the extruded tube, and the second distance detection sensor (422) being electrically connected to the material cutting mechanism (300).

5. The device for recycling plastic extrusion waste according to claim 1, characterized in that: The moving assembly comprises a first electric push rod (470), the first electric push rod (470) being fixedly connected to the frame (100), a piston rod of the first electric push rod (470) being fixedly connected to the base (410), the first electric push rod (470) driving the base (410) to move in a direction approaching or moving away from the material breaking mechanism (300), and the first electric push rod (470) being electrically connected to the detection mechanism (200).

6. The device for recycling plastic extrusion waste according to claim 1, characterized in that: The lifting assembly (460) comprises a second electric push rod (461), a first guide rod (462) and a second guide rod (463); the second electric push rod (461) is fixedly connected to the base (410); the piston rod of the second electric push rod (461) is fixedly connected to the recovery cylinder (420); one end of the first guide rod (462) is fixedly connected to the recovery cylinder (420); the other end of the first guide rod (462) is inserted into one end of the second guide rod (463); the first guide rod (462) and the second guide rod (463) are coaxially arranged; the other end of the second guide rod (463) is fixedly connected to the base (410); and the electric push rod is electrically connected to the detection mechanism (200).

7. The device for recycling plastic extrusion waste according to claim 1, characterized in that: The crushing assembly (450) comprises a crushing box (451), a second motor (452) and two crushing rollers (453); the crushing box (451) is fixedly connected to the recovery barrel (420); a feed port is provided at one end of the crushing box (451) close to the recovery barrel (420); the feed port of the crushing box (451) is communicated with a feed port of the recovery barrel (420); the second motor (452) is fixedly connected to the side wall of the crushing box (451); and the crushing rollers (453) are connected to the side wall of the crushing box (451). ) is rotatably connected between two opposite side walls of the crushing box (451), the rotation axis of the crushing roller (453) is parallel to the rotation axis of the transmission rod (432), the second motor (452) is transmission-connected to the two crushing rollers (453), and a discharge port is provided at one end of the crushing box (451) away from the recovery cylinder (420), and the discharge port is connected to a feeding assembly through a guide pipe (454), and the feeding assembly is connected to a feeding assembly (530) of an extrusion device (500).

8. The device for recycling plastic extrusion waste according to claim 7, characterized in that: The feeding component is a screw conveyor (480), the material guide pipe (454) is a retractable hose, the material guide pipe (454) is in communication with the feeding end of the screw conveyor (480), and the material discharge end of the screw conveyor (480) is in communication with the feeding component (530) of the extrusion device (500).

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