Automatic recycling device and recycling method for plastic pipe processing stubble

Abstract

The present invention belongs to the technical field of pipeline processing, and discloses an automatic recycling device for plastic pipeline processing material heads and a recycling method thereof, comprising a support frame, a crushing box fixed on the top of the support frame, a material guide plate fixed on the top of the crushing box, a first connecting block fixed on the side wall of the crushing box, and by arranging the cooperation of a first crushing roller, a first gear, a second gear and other structures, the device can start a first servo motor, and the first servo motor drives the first crushing roller to rotate during operation, and then drives the first gear to rotate through the first crushing roller, and the second gear drives the second crushing roller to rotate, and then the first crushing roller and the second crushing roller rotate in opposite directions, so that the plastic pipe material head sandwiched between the first crushing roller and the second crushing roller can be crushed, and its fragments fall into the top of the screening plate and the inside of the screening box, so as to achieve the purpose of using the device to crush the plastic pipe material head while saving energy.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline processing, and in particular relates to an automatic recycling device for plastic pipeline processing slugs and a recycling method thereof. Background Art

[0002] Plastic pipe processing stubs refer to the leftover material generated during the cutting and processing of plastic pipes. These materials are usually unused parts due to pipe length, diameter, or processing requirements. Stubs are generally considered unimportant and useless impurities. However, in some cases, they may have certain reuse value, especially when the material itself is relatively expensive or has special properties. Therefore, it is necessary to recycle and reprocess these raw materials so that they can be reused to achieve stable resource utilization.

[0003] When the device is in use, due to the possible differences in the shape, size, and hardness of the material heads, the crushing rollers may not be able to completely and evenly crush all the material heads during the crushing process, resulting in insufficient or excessive crushing of some material heads. This requires the use of multiple power sources for transmission, resulting in a waste of resources. In addition, the device cannot recycle material heads of different sizes after crushing. It is necessary to conserve the energy used by the device, and to screen and recover the material heads after the device has been crushed while conserving energy, and to be able to quickly remove the screened material heads. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an automatic recycling device for plastic pipe processing slugs and a recycling method thereof.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic recycling device for plastic pipe processing stubs and a recycling method thereof, comprising a support frame, a crushing box fixed to the top of the support frame, a material guide plate fixed to the top of the interior of the crushing box, a first servo motor fixed to the side wall of the crushing box, a crushing mechanism installed on the side wall of the first servo motor, a vibration mechanism provided at one end of the crushing mechanism, and a first connecting block fixed to the side wall of the crushing box;

[0006] The crushing mechanism includes a first crushing roller, a first gear and a second gear. The first crushing roller is installed at the output end of the first servo motor. The first gear is fixed to the side wall of the first crushing roller. The second gear is provided on the outer wall of the first gear. The second crushing roller is fixed to the side wall of the second gear.

[0007] Preferably, the outer wall of the first gear is provided with several groups of teeth with equal spacing, the outer wall of the second gear is provided with several groups of teeth with equal spacing, and the first gear and the second gear are meshingly connected.

[0008] Preferably, the vibration mechanism includes a first bevel gear, a second bevel gear and a first connecting rod, the first bevel gear is fixed to the side wall of the first gear, the bottom end of the first bevel gear is provided with a second bevel gear, the bottom end of the second bevel gear is fixed with a first connecting rod, the bottom end of the first connecting rod is fixed with a third bevel gear, the side wall of the third bevel gear is provided with a fourth bevel gear, the side wall of the fourth bevel gear is fixed with a second connecting rod, and the outer wall of the second connecting rod is fixed with an eccentric wheel.

[0009] Preferably, the outer wall of the first bevel gear is provided with several groups of teeth, the outer wall of the second bevel gear is provided with several groups of teeth, the first bevel gear and the second bevel gear are meshedly connected, and the first connecting rod is rotatably connected to the inner wall of the first connecting block.

[0010] Preferably, the outer wall of the third bevel gear is provided with several groups of teeth, the outer wall of the fourth bevel gear is provided with several groups of teeth, the third bevel gear and the fourth bevel gear are meshingly connected, and the eccentric wheel is provided with three groups of teeth distributed at equal intervals about the central axis of the second connecting rod.

[0011] Preferably, a screening mechanism is installed on the inner wall of the crushing box, a first electric baffle is installed on the bottom end of the crushing box, a second electric baffle is installed on the bottom end of the crushing box, a control panel is fixed on the outer wall of the crushing box, a display screen is fixed on the outer wall of the control panel, several groups of control buttons are provided on the outer wall of the control panel, and a signal display light is installed on the outer wall of the control panel.

[0012] Preferably, the screening mechanism includes a screening plate, a screening box and a first screening hole, the screening plate is fixed to the inner wall of the crushing box, the screening box is fixed to the inner wall of the crushing box, the outer wall of the screening box is provided with a first screening hole, the outer wall of the screening box is provided with a second screening hole, the outer wall of the screening box is provided with a third screening hole, the side wall of the screening box is installed with a second connecting block, the inner wall of the second connecting block is rotatably connected to a connecting plate, and the side end of the connecting plate is fixed with a second servo motor.

[0013] Preferably, the height of the first sieve hole is higher than the second sieve hole, the height of the second sieve hole is higher than the third sieve hole, the side wall of the first sieve hole is opened with a hole communicating with the second sieve hole, and the height of the hole is the same as the height of the second sieve hole, the side wall of the second sieve hole is opened with a hole communicating with the third sieve hole, and the height of the hole is the same as the height of the third sieve hole.

[0014] Preferably, the connecting plate is provided with three groups of baffles fixed on the outer wall, and the connecting plate is rotatably connected to the inner wall of the second connecting block.

[0015] The present invention also provides a method for automatically recovering plastic pipe processing stubble, comprising the following steps:

[0016] S1. Place the plastic pipe head into the device through the feed port and guide plate opened at the top of the crushing box, and make it fall between the first crushing roller and the second crushing roller, so that the plastic pipe head can be fed.

[0017] S2. Start the first servo motor. When the first servo motor is running, it drives the first crushing roller to rotate, and then drives the first gear to rotate through the first crushing roller. Since the first gear and the second gear are meshed, the first gear can drive the second gear to rotate when rotating, so that the second gear drives the second crushing roller to rotate. Then, the first crushing roller and the second crushing roller rotate in opposite directions, so that the plastic pipe head sandwiched between the first crushing roller and the second crushing roller can be crushed, and the fragments fall into the top of the screening plate and the inside of the screening box;

[0018] S3, when the first gear rotates, it can drive the first bevel gear to rotate, so that the first bevel gear drives the second bevel gear meshing with itself to rotate, and then drives the first connecting rod and the third bevel gear to rotate, and the rotation of the third bevel gear drives the fourth bevel gear, the second connecting rod and the eccentric wheel to rotate. Since the shape of the eccentric wheel is eccentric, it can continuously contact and disengage from the bottom end of the screen plate during rotation, thereby causing the crushed plastic pipe head at the top of the screen plate to vibrate, so that it moves and falls into the first screening hole, the second screening hole and the third screening hole opened in the screening box for screening and classification;

[0019] S4. Since the heights of the first sieve hole, the second sieve hole and the third sieve hole are different, the crushed plastic pipe heads of appropriate sizes can be allowed to enter the first sieve hole, the second sieve hole and the third sieve hole of corresponding sizes. Moreover, since a hole of the same size as the second sieve hole is provided between the first sieve hole and the second sieve hole, the plastic pipe heads smaller than the height of the first sieve hole that enter the first sieve hole can pass through the hole to enter the second sieve hole. Moreover, a hole of the same size as the third sieve hole is also provided between the second sieve hole and the third sieve hole, the plastic pipe heads smaller than the height of the second sieve hole that enter the second sieve hole can pass through the hole to enter the third sieve hole to achieve the purpose of screening. After screening, the second servo motor is started, and the second servo motor can drive the connecting plate to rotate about the central axis of the second connecting block, so that the plastic pipe heads located at the top end of the connecting plate fall to the top ends of the corresponding first electric baffle and the second electric baffle.

[0020] S5. After placing a collection bucket at the bottom of the corresponding first electric baffle and the second electric baffle, the first electric baffle and the second electric baffle are opened to collect plastic pipe heads of different specifications. The user can use the control panel, display screen, control buttons and signal display lights to observe and control the use status of the device and the crushing efficiency.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention arranges the coordination of the first crushing roller, the first gear, the second gear and other structures so that the device can start the first servo motor, and the first servo motor drives the first crushing roller to rotate when running, and then drives the first gear to rotate through the first crushing roller. Since the first gear and the second gear are designed to be meshed, the first gear can drive the second gear to rotate when rotating, so that the second gear drives the second crushing roller to rotate, and then the first crushing roller and the second crushing roller rotate in opposite directions, so that the plastic pipe head sandwiched between the first crushing roller and the second crushing roller can be crushed, and its fragments fall into the top of the screening plate and the inside of the screening box, so as to achieve the purpose of using the device to crush the plastic pipe head while saving energy.

[0023] The present invention arranges the coordination of structures such as the first bevel gear, the second bevel gear, and the first connecting rod, so that the device can drive the first bevel gear to rotate when the first gear rotates, so that the first bevel gear drives the second bevel gear meshing with itself to rotate, and then drives the first connecting rod and the third bevel gear to rotate, and the rotation of the third bevel gear drives the fourth bevel gear, the second connecting rod and the eccentric wheel to rotate. Since the shape of the eccentric wheel is eccentric, it can continuously contact and disengage from the bottom end of the screen plate during rotation, thereby causing the crushed plastic pipe head at the top end of the screen plate to vibrate, move, and fall into the first screening hole, the second screening hole and the third screening hole opened in the screening box for screening and classification, thereby achieving the purpose of facilitating the device to vibrate the plastic pipe head and then screen it. The present invention cooperates with the structures such as the screening plate, the screening box, and the first screening hole, so that the device can make the first screening hole, the second screening hole, and the third screening hole have different heights, thereby allowing the crushed plastic pipe head of appropriate size to enter the first screening hole, the second screening hole, and the third screening hole of corresponding size, and because a hole of the same size as the second screening hole is opened between the first screening hole and the second screening hole, the plastic pipe head that is smaller than the height of the first screening hole and enters the interior of the second screening hole through the hole, and the second screening hole A hole of the same size as the third screening hole is also provided between the second screening hole and the third screening hole, so that the plastic pipe head that is smaller than the height of the second screening hole can enter the interior of the third screening hole through the hole to achieve the purpose of screening. After screening, the second servo motor is started, and the second servo motor can drive the connecting plate to rotate about the central axis of the second connecting block, so that the plastic pipe head located at the top of the connecting plate falls to the top of the corresponding first electric baffle and the second electric baffle, so as to achieve the purpose of facilitating the crushing, recovery and discharge of the plastic pipe head. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall right side structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the overall cross-section structure of the present invention in an open state;

[0028] Figure 5 This is a schematic diagram of the structure of the present invention in an overall cross-section in an open state from the right;

[0029] Figure 6 This is a schematic structural diagram of the crushing mechanism and the vibration mechanism of the present invention;

[0030] Figure 7 It is a cross-sectional structural diagram of the present invention from a right rear perspective;

[0031] Figure 8 This is a schematic diagram of the structure of the present invention in an open state from a right rear perspective;

[0032] Figure 9 It is a left side structural schematic diagram of the screening mechanism of the present invention;

[0033] Figure 10 It is a schematic structural diagram of the screening mechanism of the present invention from the left rear perspective. In the figure: 1. support frame; 2. crushing box; 3. guide plate; 4. first servo motor; 5. crushing mechanism; 501. first crushing roller; 502. first gear; 503. second gear; 504. second crushing roller; 6. vibration mechanism; 601. first bevel gear; 602. second bevel gear; 603. first connecting rod; 604. third bevel gear; 605. fourth bevel gear; 606. second connecting rod; 607. eccentric wheel; 7. first connecting block; 8. screening mechanism; 801. screening plate; 802. screening box; 803. first screening hole; 804. second screening hole; 805. third screening hole; 806. second connecting block; 807. connecting plate; 808. second servo motor; 9. first electric baffle; 10. second electric baffle; 11. control panel; 12. display screen; 13. control buttons; 14. signal display light DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figures 1 to 10 As shown, the present invention provides an automatic recycling device for plastic pipe processing material heads and a recycling method thereof, comprising a support frame 1, a crushing box 2 is fixed to the top of the support frame 1, a material guide plate 3 is fixed to the top of the inner portion of the crushing box 2, a first servo motor 4 is fixed to the side wall of the crushing box 2, a crushing mechanism 5 is installed on the side wall of the first servo motor 4, and a vibration mechanism 6 is provided at one end of the crushing mechanism 5.

[0036] like Figures 1 to 10As shown, the vibration mechanism 6 includes a first bevel gear 601, a second bevel gear 602 and a first connecting rod 603. The first bevel gear 601 is fixed to the side wall of the first gear 502. The bottom end of the first bevel gear 601 is provided with the second bevel gear 602. The bottom end of the second bevel gear 602 is fixed with the first connecting rod 603. The outer wall of the first bevel gear 601 is provided with several groups of teeth, and the outer wall of the second bevel gear 602 is provided with several groups of teeth. The first bevel gear 601 and the second bevel gear 602 are meshedly connected, and the first connecting rod 603 is rotatably connected to the inner wall of the first connecting block 7.

[0037] like Figures 1 to 10 As shown, a third bevel gear 604 is fixed to the bottom end of the first connecting rod 603, a fourth bevel gear 605 is provided on the side wall of the third bevel gear 604, a second connecting rod 606 is fixed to the side wall of the fourth bevel gear 605, the outer wall of the third bevel gear 604 is provided with several groups of teeth, the outer wall of the fourth bevel gear 605 is provided with several groups of teeth, the third bevel gear 604 and the fourth bevel gear 605 are meshedly connected, the eccentric wheel 607 is provided with three groups of equidistantly distributed about the central axis of the second connecting rod 606, the outer wall of the second connecting rod 606 is fixed with an eccentric wheel 607, and the side wall of the crushing box 2 is fixed with a first connecting block 7.

[0038] The above scheme is adopted: when the first gear 502 rotates, it can drive the first bevel gear 601 to rotate, so that the first bevel gear 601 drives the second bevel gear 602 meshing with itself to rotate, and then drives the first connecting rod 603 and the third bevel gear 604 to rotate, and the rotation of the third bevel gear 604 drives the fourth bevel gear 605, the second connecting rod 606 and the eccentric wheel 607 to rotate. Since the shape of the eccentric wheel 607 is eccentric, it can continuously contact and disengage from the bottom end of the screening plate 801 during rotation, thereby causing the crushed plastic pipe head at the top of the screening plate 801 to vibrate, so that it moves and falls into the first screening hole 803, the second screening hole 804 and the third screening hole 805 opened in the screening box 802 for screening and classification.

[0039] like Figures 1 to 10As shown, the inner wall of the crushing box 2 is installed with a screening mechanism 8, which includes a screening plate 801, a screening box 802 and a first screening hole 803. The screening plate 801 is fixed to the inner wall of the crushing box 2, and the screening box 802 is fixed to the inner wall of the crushing box 2. The outer wall of the screening box 802 is provided with a first screening hole 803, and the outer wall of the screening box 802 is provided with a second screening hole 804. The height of the first screening hole 803 is higher than that of the second screening hole 804, and the height of the second screening hole 804 is higher than that of the third screening hole 805. The side wall of the first screening hole 803 is provided with a hole communicating with the second screening hole 804. , and the opening height is the same as the second sieve hole 804. The side wall of the second sieve hole 804 is provided with a hole that communicates with the third sieve hole 805, and the opening height is the same as the third sieve hole 805. The outer wall of the sieve box 802 is provided with a third sieve hole 805, and the side wall of the sieve box 802 is installed with a second connecting block 806. The inner wall of the second connecting block 806 is rotatably connected to a connecting plate 807. The side end of the connecting plate 807 is fixed with a second servo motor 808. The connecting plate 807 is provided with three sets of baffles fixed on the outer wall, and the connecting plate 807 is rotatably connected to the inner wall of the second connecting block 806.

[0040] The above scheme is adopted: through the different heights of the first sieve hole 803, the second sieve hole 804 and the third sieve hole 805, the crushed plastic pipe head of appropriate size can enter the first sieve hole 803, the second sieve hole 804 and the third sieve hole 805 of corresponding size, and because a hole of the same size as the second sieve hole 804 is opened between the first sieve hole 803 and the second sieve hole 804, the plastic pipe head smaller than the height of the first sieve hole 803 that enters the interior of the first sieve hole 803 can pass through the hole and enter the interior of the second sieve hole 804, and the second sieve hole A hole of the same size as the third screening hole 805 is also provided between 804 and the third screening hole 805, which can allow the plastic pipe material head that is smaller than the height of the second screening hole 804 to enter the interior of the second screening hole 804 through the hole to enter the interior of the third screening hole 805 to achieve the purpose of screening. After screening, the second servo motor 808 is started, and the second servo motor 808 can drive the connecting plate 807 to rotate about the central axis of the second connecting block 806, so that the plastic pipe material head located at the top of the connecting plate 807 falls to the top of the corresponding first electric baffle 9 and the second electric baffle 10.

[0041] like Figures 1 to 10 As shown, a first electric baffle 9 is installed at the bottom end of the crushing box 2, a second electric baffle 10 is installed at the bottom end of the crushing box 2, a control panel 11 is fixed to the outer wall of the crushing box 2, a display screen 12 is fixed to the outer wall of the control panel 11, several groups of control buttons 13 are provided on the outer wall of the control panel 11, and a signal display light 14 is installed on the outer wall of the control panel 11.

[0042] The above solution is adopted: by placing a collection bucket at the bottom of the corresponding first electric baffle 9 and the second electric baffle 10, and then opening the first electric baffle 9 and the second electric baffle 10, plastic pipe heads of different specifications can be collected, and the user can use the control panel 11, display screen 12, control button 13 and signal display light 14 to observe and control the use status of the device and the crushing efficiency.

[0043] like Figures 1 to 10 As shown, the crushing mechanism 5 includes a first crushing roller 501, a first gear 502 and a second gear 503. The first crushing roller 501 is installed at the output end of the first servo motor 4. The first gear 502 is fixed to the side wall of the first crushing roller 501, the second gear 503 is provided on the outer wall of the first gear 502, and the second crushing roller 504 is fixed to the side wall of the second gear 503. The outer wall of the first gear 502 is provided with several groups of teeth with equal spacing, and the outer wall of the second gear 503 is provided with several groups of teeth with equal spacing. The first gear 502 and the second gear 503 are meshedly connected.

[0044] The above scheme is adopted: by starting the first servo motor 4, the first servo motor 4 drives the first crushing roller 501 to rotate during operation, and then drives the first gear 502 to rotate through the first crushing roller 501. Since the first gear 502 and the second gear 503 are meshing designs, the first gear 502 can drive the second gear 503 to rotate when rotating, so that the second gear 503 drives the second crushing roller 504 to rotate, and then the first crushing roller 501 and the second crushing roller 504 rotate in opposite directions, so that the plastic pipe head sandwiched between the first crushing roller 501 and the second crushing roller 504 can be crushed, and its fragments fall into the top of the screening plate 801 and the inside of the screening box 802.

[0045] The present invention also provides a method for automatically recovering plastic pipe processing stubble, comprising the following steps:

[0046] S1. Place the plastic pipe head into the device through the feed port opened at the top of the crushing box 2 and the guide plate 3, and make it fall between the first crushing roller 501 and the second crushing roller 504, so that the plastic pipe head can be fed.

[0047] S2. Start the first servo motor 4. When the first servo motor 4 is running, it drives the first crushing roller 501 to rotate, and then drives the first gear 502 to rotate through the first crushing roller 501. Since the first gear 502 and the second gear 503 are meshed, the first gear 502 can drive the second gear 503 to rotate when rotating, so that the second gear 503 drives the second crushing roller 504 to rotate. Then, the first crushing roller 501 and the second crushing roller 504 rotate in opposite directions, so that the plastic pipe head sandwiched between the first crushing roller 501 and the second crushing roller 504 can be crushed, and the fragments fall into the top of the screening plate 801 and the interior of the screening box 802;

[0048] S3, when the first gear 502 rotates, it can drive the first bevel gear 601 to rotate, so that the first bevel gear 601 drives the second bevel gear 602 meshing with itself to rotate, and then drives the first connecting rod 603 and the third bevel gear 604 to rotate, and the rotation of the third bevel gear 604 drives the fourth bevel gear 605, the second connecting rod 606 and the eccentric wheel 607 to rotate. Since the eccentric wheel 607 is eccentric in shape, it can continuously contact and disengage from the bottom end of the screening plate 801 during rotation, thereby causing the crushed plastic pipe head at the top of the screening plate 801 to vibrate, causing it to move and fall into the first screening hole 803, the second screening hole 804 and the third screening hole 805 opened in the screening box 802 for screening and classification;

[0049] S4. Since the first sieve hole 803, the second sieve hole 804 and the third sieve hole 805 have different heights, the crushed plastic pipe head of appropriate size can enter the first sieve hole 803, the second sieve hole 804 and the third sieve hole 805 of corresponding size. Moreover, since a hole of the same size as the second sieve hole 804 is provided between the first sieve hole 803 and the second sieve hole 804, the plastic pipe head smaller than the height of the first sieve hole 803 that has entered the interior of the first sieve hole 803 can pass through the hole and enter the interior of the second sieve hole 804. A hole of the same size as the third sieve hole 805 is also provided between the second sieve hole 804 and the third sieve hole 805, so that the plastic pipe head that is smaller than the height of the second sieve hole 804 and has entered the interior of the second sieve hole 804 can pass through the hole and enter the interior of the third sieve hole 805 to achieve the purpose of screening. After screening, the second servo motor 808 is started, and the second servo motor 808 can drive the connecting plate 807 to rotate about the central axis of the second connecting block 806, so that the plastic pipe head located at the top of the connecting plate 807 falls to the top of the corresponding first electric baffle 9 and the second electric baffle 10;

[0050] S5. After placing a collection bucket at the bottom of the corresponding first electric baffle 9 and the second electric baffle 10, the first electric baffle 9 and the second electric baffle 10 are opened to collect plastic pipe heads of different specifications. The user can use the control panel 11, display screen 12, control button 13 and signal display light 14 to observe and control the use status of the device and the crushing efficiency.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic recycling device for plastic pipe processing material heads, comprising a support frame (1), characterized in that: A crushing box (2) is fixed to the top of the support frame (1), a guide plate (3) is fixed to the top of the interior of the crushing box (2), a first servo motor (4) is fixed to the side wall of the crushing box (2), a crushing mechanism (5) is installed on the side wall of the first servo motor (4), a vibration mechanism (6) is provided at one end of the crushing mechanism (5), a first connecting block (7) is fixed to the side wall of the crushing box (2), and a screening mechanism (8) is installed on the inner wall of the crushing box (2); The crushing mechanism (5) comprises a first crushing roller (501), a first gear (502) and a second gear (503); the first crushing roller (501) is mounted on the output end of the first servo motor (4); the first gear (502) is fixed to the side wall of the first crushing roller (501); the second gear (503) is provided on the outer wall of the first gear (502); and the second crushing roller (504) is fixed to the side wall of the second gear (503); The vibration mechanism (6) comprises a first bevel gear (601), a second bevel gear (602) and a first connecting rod (603), wherein the first bevel gear (601) is fixed to the side wall of the first gear (502), the second bevel gear (602) is provided at the bottom end of the first bevel gear (601), the first connecting rod (603) is fixed to the bottom end of the second bevel gear (602), the third bevel gear (604) is fixed to the bottom end of the first connecting rod (603), the fourth bevel gear (605) is provided on the side wall of the third bevel gear (604), the second connecting rod (606) is fixed to the side wall of the fourth bevel gear (605), and the eccentric wheel (607) is fixed to the outer wall of the second connecting rod (606); The screening mechanism (8) comprises a screening plate (801), a screening box (802) and a first screening hole (803), wherein the screening plate (801) is fixed to the inner wall of the crushing box (2), the screening box (802) is fixed to the inner wall of the crushing box (2), the outer wall of the screening box (802) is provided with a first screening hole (803), the outer wall of the screening box (802) is provided with a second screening hole (804), the outer wall of the screening box (802) is provided with a third screening hole (805), a second connecting block (806) is installed on the side wall of the screening box (802), the inner wall of the second connecting block (806) is rotatably connected to a connecting plate (807), a second servo motor (808) is fixed to the side end of the connecting plate (807), the first screening hole (803) is provided with a first sieve hole (803), the outer wall of the screening box (802) is provided with a second screening hole (804), the outer wall of the screening box (802) is provided with a third screening hole (805), a second connecting block (806) is installed on the side wall of the screening box (802), the inner wall of the second connecting block (806) is rotatably connected to a connecting plate (807), a second servo motor (808) is fixed to the side end of the connecting plate (807), 3) is higher than the second sieve hole (804), the second sieve hole (804) is higher than the third sieve hole (805), the side wall of the first sieve hole (803) is provided with a hole communicating with the second sieve hole (804), and the opening height is the same as the height of the second sieve hole (804), the side wall of the second sieve hole (804) is provided with a hole communicating with the third sieve hole (805), and the opening height is the same as the height of the third sieve hole (805), the second servo motor (808) can drive the connecting plate (807) to rotate about the central axis of the second connecting block (806), so that the plastic pipe head located at the top of the connecting plate (807) falls, and the eccentric wheel (607) can continuously contact and separate from the bottom end of the sieve plate (801) during rotation.

2. The automatic recycling device for plastic pipe processing slugs according to claim 1 is characterized by: The outer wall of the first gear (502) is provided with a plurality of groups of teeth at equal intervals, and the outer wall of the second gear (503) is provided with a plurality of groups of teeth at equal intervals. The first gear (502) and the second gear (503) are meshingly connected.

3. The automatic recycling device for plastic pipe processing stubble according to claim 1 is characterized in that: The outer wall of the first bevel gear (601) is provided with a plurality of sets of teeth, the outer wall of the second bevel gear (602) is provided with a plurality of sets of teeth, the first bevel gear (601) and the second bevel gear (602) are meshingly connected, and the first connecting rod (603) is rotatably connected to the inner wall of the first connecting block (7).

4. The automatic recycling device for plastic pipe processing stubble according to claim 1 is characterized in that: The outer wall of the third bevel gear (604) is provided with a plurality of groups of teeth, the outer wall of the fourth bevel gear (605) is provided with a plurality of groups of teeth, the third bevel gear (604) and the fourth bevel gear (605) are meshingly connected, and the eccentric wheel (607) is provided with three groups of teeth distributed at equal intervals about the central axis of the second connecting rod (606).

5. The automatic recycling device for plastic pipe processing stubble according to claim 1 is characterized in that: A first electric baffle (9) is installed at the bottom end of the crushing box (2), a second electric baffle (10) is installed at the bottom end of the crushing box (2), a control panel (11) is fixed to the outer wall of the crushing box (2), a display screen (12) is fixed to the outer wall of the control panel (11), a plurality of groups of control buttons (13) are provided on the outer wall of the control panel (11), and a signal display light (14) is installed on the outer wall of the control panel (11).

6. The automatic recycling device for plastic pipe processing stubble according to claim 1, characterized in that: The connecting plate (807) is provided with three groups of baffles fixed on the outer wall, and the connecting plate (807) is rotatably connected to the inner wall of the second connecting block (806).

7. A method for automatically recovering plastic pipe processing stubs, using the device for automatically recovering plastic pipe processing stubs as claimed in claim 5, characterized in that: The following steps are involved: S1. Place the plastic pipe head into the device through the feed port and the guide plate (3) opened at the top of the crushing box (2), and allow it to fall between the first crushing roller (501) and the second crushing roller (504), thereby enabling the plastic pipe head to be fed; S2. Start the first servo motor (4). When the first servo motor (4) is running, it drives the first crushing roller (501) to rotate, and then drives the first gear (502) to rotate through the first crushing roller (501). Since the first gear (502) and the second gear (503) are designed to be meshed, the first gear (502) can drive the second gear (503) to rotate when rotating, so that the second gear (503) drives the second crushing roller (504) to rotate. Then, the first crushing roller (501) and the second crushing roller (504) rotate in opposite directions, so that the plastic pipe head sandwiched between the first crushing roller (501) and the second crushing roller (504) can be crushed, and the fragments thereof fall into the top of the screening plate (801) and the interior of the screening box (802); S3, when the first gear (502) rotates, it can drive the first bevel gear (601) to rotate, so that the first bevel gear (601) drives the second bevel gear (602) meshed with itself to rotate, and then drives the first connecting rod (603) and the third bevel gear (604) to rotate, and the rotation of the third bevel gear (604) drives the fourth bevel gear (605), the second connecting rod (606) and the eccentric wheel (607) to rotate. Since the eccentric wheel (607) is eccentric in shape, it can continuously contact and disengage from the bottom end of the screening plate (801) when rotating, thereby causing the crushed plastic pipe material head at the top end of the screening plate (801) to vibrate, so that it moves and falls into the first screening hole (803), the second screening hole (804) and the third screening hole (805) opened in the screening box (802) for screening and classification; S4. Since the first sieve hole (803), the second sieve hole (804) and the third sieve hole (805) have different heights, the crushed plastic pipe head of appropriate size can enter the first sieve hole (803), the second sieve hole (804) and the third sieve hole (805) of corresponding size. Moreover, since a hole of the same size as the second sieve hole (804) is provided between the first sieve hole (803) and the second sieve hole (804), the plastic pipe head that is smaller than the height of the first sieve hole (803) and enters the interior of the second sieve hole (804) can pass through the hole. Moreover, since a hole of the same size as the third sieve hole (805) is also provided between the second sieve hole (804) and the third sieve hole (805), the plastic pipe head that is smaller than the height of the second sieve hole (804) and enters the interior of the second sieve hole (804) can pass through the hole. The plastic pipe heads of different sizes pass through the hole and enter the interior of the third screening hole (805) to achieve the purpose of screening. After screening, the second servo motor (808) is started, and the second servo motor (808) can drive the connecting plate (807) to rotate about the central axis of the second connecting block (806), so that the plastic pipe heads located at the top of the connecting plate (807) fall to the top of the corresponding first electric baffle (9) and the second electric baffle (10); S5, after placing a collection bucket at the bottom of the corresponding first electric baffle (9) and the second electric baffle (10), the first electric baffle (9) and the second electric baffle (10) are opened, and plastic pipe heads of different sizes can be collected. The user can use the control panel (11), the display screen (12), the control button (13) and the signal display light (14) to observe and control the use status of the device and the efficiency of crushing.

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