Waste plastic film recycling device of blister packaging machine

Abstract

The invention discloses a waste plastic film recycling device of a bubble cap machine, and belongs to the technical field of plastic recycling and conveying. A crushing bin is located above a treatment bin, a rotary top cover is further movably installed at the top of a top plate, and multiple sets of outer discharging cavities matched with inner discharging cavities are formed in the rotary top cover; a screen frame for cleaning and air-drying the crushed materials is arranged in the treatment bin; an annular gas inlet cavity is formed in the treatment bin, a first filter screen is mounted on the inner wall of the gas inlet cavity, a through discharge groove is formed in the bottom of the bottom cover, a storage cavity is formed in the inner wall of the bottom cover, a second filter screen is mounted on the inner wall of the storage cavity, and the gas inlet cavity communicates with the storage cavity through a communicating cavity. Waste plastic can be fully smashed through the smashing bin, and the smashed plastic falls into the screen frame. And then the high-pressure nozzle and the stirring motor are started, impurities left on the surfaces of the plastic particles can be cleaned, waste water can be discharged out of the treatment bin through the conical part and the discharging groove, and the stability and the cleaning efficiency are improved through the design.

Description

Technical Field

[0001] The invention relates to the technical field of plastic recycling, in particular to a device for recycling and processing waste plastic films from a blister machine. Background Art

[0002] Blister packaging machines form blisters from transparent plastic film or sheeting, sealing the product between the blister and a base plate using methods such as heat sealing and gluing. These machines generate a significant amount of waste plastic film during use. As the consumption of film products continues to grow, so too does the amount of waste film. Improper use and post-processing of waste film can damage the environment and harm public health. Therefore, recycling and reusing waste film is crucial, turning waste into valuable resources.

[0003] A Chinese patent application with publication number CN119388631A discloses a plastic product recycling preprocessing device, which relates to the technical field of crushing equipment and includes a frame, a crushing tooth roller, a collection bin, a crushing bin, a first end cap, a second end cap, a sliding mounting plate, a motor mounted on the outer wall of the sliding mounting plate, and a crushing blade connected to the motor's output shaft; and a pusher assembly disposed within the crushing bin. In this invention, after being initially crushed by two crushing tooth rollers, the plastic products enter the collection bin, and the pusher assembly pushes the initially crushed plastic products toward the crushing blades, where they are crushed, thereby further reducing the volume of the plastic products. This shortens the time required to heat and melt the plastic products in the subsequent heating and melting process, improving the efficiency of the plastic product recycling process. Furthermore, the pusher assembly can compact the initially crushed plastic products, preventing the crushing effect from being poor due to the scattering of the crushed products during crushing by the crushing blades.

[0004] However, the cleaning effect of the plastic product recycling device disclosed above is average, there are many impurities, and the plastic fragments cannot be efficiently cleaned and air-dried after crushing. In addition, due to the poor air quality in the crushing workshop, there is a lack of an air filtration structure during the air drying operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a blister machine waste plastic film recycling and processing device to solve the problems of the existing plastic product recycling device having poor cleaning effect, a large amount of impurities, and the inability to efficiently clean and air-dry the plastic fragments after crushing, and the lack of an air filtration structure during the air-drying operation due to the poor air quality in the crushing workshop.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a blister machine waste plastic film recycling and processing device, comprising a crushing bin and a processing bin, the crushing bin is located above the processing bin; a top plate is fixedly installed on the top of the processing bin, a plurality of groups of spaced inner feeding cavities are provided on the top of the top plate, and a rotating top cover is movably installed on the top of the top plate, a plurality of groups of outer feeding cavities cooperating with the inner feeding cavities are provided on the rotating top cover; a bottom cover is installed at the bottom of the processing bin, and a screen frame for cleaning and air-drying the crushed materials is provided inside the processing bin; an annular air inlet cavity is provided inside the processing bin, a first filter is installed on the inner wall of the air inlet cavity, and a connecting cavity is provided at the bottom of the air inlet cavity; a through discharge trough is provided at the bottom of the bottom cover, a storage cavity is provided on the inner wall of the bottom cover, a second filter is installed on the inner wall of the storage cavity, and the air inlet cavity is connected to the storage cavity through the connecting cavity.

[0007] As a further solution of the present invention: a plurality of support legs are provided on the outer wall of the processing bin, the crushing bin is mounted on top of the support legs, and a control panel is also provided on the outer wall of the crushing bin.

[0008] As a further solution of the present invention: a feed port is provided on the top of the crushing bin, and a feed cover is also provided on the top of the crushing bin.

[0009] As a further solution of the present invention: multiple groups of high-pressure nozzles located between the inner feeding chambers are installed at the bottom of the top plate, and the high-pressure nozzles are located at the top of the screen frame; multiple groups of fans located outside the screen frame are also installed at the bottom of the top plate.

[0010] As a further solution of the present invention: a material guide cover is also provided on the top of the rotating top cover, a stirring motor is installed in the middle of the rotating top cover, and the output end of the stirring motor is provided with a stirring shaft located inside the net frame; a discharge gear ring is installed on the outer wall of the rotating top cover, a rotating motor is installed on the outer wall of the processing bin, and a discharge gear meshing with the discharge gear ring is installed on the output end of the rotating motor.

[0011] As a further solution of the present invention: a tapered portion is provided at the bottom of the screen frame, a feed pipe is provided at the bottom of the tapered portion, and a control valve located below the bottom cover is installed on the feed pipe.

[0012] As a further solution of the present invention: multiple groups of windows connected to the air inlet chamber are provided on the outer wall of the processing chamber, and rotating grooves are provided on the inner walls on the upper and lower sides of the air inlet chamber. A sealed ring is movably installed in the rotating groove, and multiple groups of air inlet holes are provided on the sealed ring; multiple groups of protrusions are also provided on the outer wall of the sealed ring.

[0013] As a further solution of the present invention: a mounting groove is also provided at the top of the air inlet chamber, a cleaning gear ring is movably installed in the mounting groove, and a plurality of groups of brushes for cleaning the first filter are provided at the bottom of the cleaning gear ring; a driving compartment is provided on the outer wall of the processing compartment, and the mounting groove is connected to the driving compartment; a cleaning motor is installed in the driving compartment, and a driving gear meshing with the cleaning gear ring is installed at the output end of the cleaning motor.

[0014] As a further solution of the present invention: the outer wall of the bottom cover is communicated with the storage cavity, and a sliding frame is further provided on the outer wall of the bottom cover, and a door panel is movably installed in the sliding frame.

[0015] As a further solution of the present invention: a shock-absorbing base is further provided at the bottom of the supporting leg.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention utilizes a crushing chamber to fully pulverize waste plastic film from blister machines, allowing the pulverized plastic to fall into the mesh frame below. The high-pressure nozzle and stirring motor are then activated to clean impurities remaining on the outer surface of the plastic particles. Wastewater and impurities are then discharged from the processing chamber through the tapered portion and discharge chute. During the cleaning operation, the internal feed chamber is closed by rotating the motor, and the window is sealed with a sealed ring to prevent external airflow from interfering with the water flow during the cleaning operation. This design improves the stability and cleaning efficiency of the blister machine waste plastic film recycling and processing device.

[0018] 2. After cleaning is completed, the present invention first starts the fan and stirring motor, and then opens the window and cleaning motor. When the fan is started, negative pressure is formed inside the processing chamber. External air enters the processing chamber through the first and second filters and effectively dries the plastic particles. When the cleaning ring gear rotates, multiple groups of brushes clean the surface of the first filter, and impurities on the surface adhere to the brushes. When the brush moves to the position of the connecting cavity, the impurities are stored in the storage cavity driven by the airflow, which facilitates subsequent cleaning. This design improves the practicality and air-drying effect of the waste plastic film recycling and processing device for the blister machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and examples:

[0020] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 It is a three-dimensional structural diagram of the top plate and the rotating top cover in the present invention;

[0022] Figure 3This is a three-dimensional structural diagram of the rotating top cover of the present invention;

[0023] Figure 4 is a cross-sectional view of the processing chamber of the present invention;

[0024] Figure 5 is a partial cross-sectional view of the processing chamber of the present invention;

[0025] Figure 6 This is a three-dimensional diagram of the internal structure of the processing chamber in the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the cleaning gear ring and brush in the present invention;

[0027] Figure 8 It is a three-dimensional structural diagram of the processing chamber in the present invention.

[0028] Description of reference numerals:

[0029] 1. Crushing chamber; 2. Processing chamber; 3. Support legs; 4. Feed port; 5. Feed cover; 6. Control panel; 7. Top plate; 8. Inner feeding chamber; 9. High-pressure nozzle; 10. Fan; 11. Rotating top cover; 12. Outer feeding chamber; 13. Feed guide cover; 14. Stirring motor; 15. Stirring shaft; 16. Feeding ring gear; 17. Rotating motor; 18. Feeding gear; 19. Bottom cover; 20. Discharge chute; 21. Screen frame; 22. Conical part; 23. Feeding pipe; 24. Control valve; 25. Air inlet chamber; 26. Window; 27. First filter screen; 28. Rotating groove; 29. Sealing ring; 30. Air inlet hole; 31. Raised part; 32. Mounting groove; 33. Cleaning gear ring; 34. Brush; 35. Drive compartment; 36. Cleaning motor; 37. Drive gear; 38. Communication chamber; 39. Storage chamber; 40. Second filter screen; 41. Sliding frame; 42. Door panel. DETAILED DESCRIPTION

[0030] The following will be combined with the Figures 1 to 8 The technical solutions of the present invention are clearly and completely described. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] The present invention provides a device for recycling and processing waste plastic films of a blister machine through improvement. Figures 1-8As shown, it includes a crushing bin 1 and a processing bin 2, the crushing bin 1 is located above the processing bin 2; a top plate 7 is fixedly installed on the top of the processing bin 2, and a plurality of spaced inner feeding cavities 8 are provided on the top of the top plate 7, and a rotating top cover 11 is also movably installed on the top of the top plate 7, and a plurality of outer feeding cavities 12 cooperating with the inner feeding cavities 8 are provided on the rotating top cover 11; a bottom cover 19 is installed at the bottom of the processing bin 2, and a mesh frame 21 for cleaning and air-drying the crushed materials is provided inside the processing bin 2; an annular air inlet cavity 25 is provided inside the processing bin 2, and a first filter screen 27 is installed on the inner wall of the air inlet cavity 25, and a connecting cavity 38 is provided at the bottom of the air inlet cavity 25; a through discharge trough 20 is provided at the bottom of the bottom cover 19, a storage cavity 39 is provided on the inner wall of the bottom cover 19, and a second filter screen 40 is installed on the inner wall of the storage cavity 39, and the air inlet cavity 25 is connected with the storage cavity 39 through the connecting cavity 38.

[0032] In this embodiment, the device for recycling and processing waste plastic film from a blister machine consists of two main parts: a crushing chamber 1 and a processing chamber 2. During operation, waste plastic is first added to the feed housing 5, and the inner and outer feed chambers 8 and 12 are aligned by a rotating motor 17. After being crushed by the crushing chamber 1, the plastic passes through the inner and outer feed chambers 8 and 12 and falls into the mesh frame 21 below. After crushing, the rotating motor 17 is restarted, causing the rotating top cover 11 to cover the inner feed chamber 8. The high-pressure nozzle 9 and stirring motor 14 are then activated to thoroughly clean the plastic particles within the mesh frame 21. The rinse water is then discharged to the outside through the discharge chute 20. During the air-drying operation, a negative pressure is generated within the processing chamber 2. At this point, external air enters the air intake chamber 25 through the air inlet 30. Some air passes through the first filter 27 and into the processing chamber 2. A small amount of air enters the storage chamber 39 through the connecting chamber 38 and then passes through the second filter 40 into the processing chamber 2. When the cleaning gear ring 33 rotates, multiple groups of brushes 34 will clean the surface of the first filter 27. When the brushes 34 move to the position of the connecting cavity 38, the impurities on the brushes 34 will be blown away and stored in the storage cavity 39 under the action of the airflow.

[0033] See attached Figure 1 A plurality of support legs 3 are provided on the outer wall of the processing bin 2 , the crushing bin 1 is installed on the top of the support legs 3 , and a control panel 6 is also provided on the outer wall of the crushing bin 1 .

[0034] In this embodiment, in order to clean the crushed plastic in time and thus improve the quality of the plastic particles, the crushing bin 1 is installed on the top of the processing bin 2. In order to control the operation of the equipment, a control panel 6 structure is designed.

[0035] See attached Figure 1 A feed port 4 is provided on the top of the crushing bin 1 , and a feed cover 5 is also provided on the top of the crushing bin 1 .

[0036] In this embodiment, during the crushing operation, in order to facilitate the plastic waste to enter the crushing bin 1, an inclined feed cover 5 structure is designed.

[0037] See attached Figure 2 The bottom of the top plate 7 is equipped with multiple groups of high-pressure nozzles 9 located between the inner feeding chamber 8, and the high-pressure nozzles 9 are located at the top of the screen frame 21; the bottom of the top plate 7 is also equipped with multiple groups of fans 10 located outside the screen frame 21.

[0038] In this embodiment, the feed pipe 23 of the screen frame 21 is fixedly mounted in the middle of the bottom cover 19, and the top of the screen frame 21 abuts the top plate 7. Since the high-pressure nozzle 9 is located inside the screen frame 21, the plastic particles can be fully cleaned with the cooperation of the stirring shaft 15. During the air-drying operation, a fan 10 is designed to create a negative pressure inside the processing chamber 2, thereby introducing external air and purifying and filtering it. The fan 10 is located between the screen frame 21 and the inner wall of the processing chamber 2.

[0039] See attached Figure 1 -Attached Figure 3 A material guide cover 13 is also provided on the top of the rotating top cover 11, a stirring motor 14 is installed in the middle of the rotating top cover 11, and a stirring shaft 15 located inside the net frame 21 is provided at the output end of the stirring motor 14; a discharge gear ring 16 is installed on the outer wall of the rotating top cover 11, and a rotating motor 17 is installed on the outer wall of the processing bin 2, and a discharge gear 18 meshing with the discharge gear ring 16 is installed at the output end of the rotating motor 17.

[0040] In this embodiment, when unloading is required, the rotary motor 17 is started, and the inner and outer unloading chambers 8 and 12 are aligned. The crushed plastic particles then fall directly into the screen frame 21. To facilitate the flow of the plastic particles into the inner and outer unloading chambers 8 and 12, a guide shield 13 is provided. When the plastic particles need to be cleaned or air-dried, the rotary motor 17 is started again, and the rotating top cover 11 shields the inner unloading chamber 8.

[0041] See attached Figure 4 A tapered portion 22 is provided at the bottom of the screen frame 21 , a feed pipe 23 is provided at the bottom of the tapered portion 22 , and a control valve 24 located below the bottom cover 19 is installed on the feed pipe 23 .

[0042] In this embodiment, in order to facilitate the discharge of waste water during cleaning, a tapered portion 22 is designed. After air drying is completed, the control valve 24 is activated and the plastic particles are discharged through the discharge pipe 23.

[0043] See attached Figure 4 , Attachment Figure 6 and attached Figure 8The outer wall of the processing chamber 2 is provided with multiple groups of windows 26 connected to the air inlet chamber 25, and the inner walls on the upper and lower sides of the air inlet chamber 25 are provided with rotating grooves 28. A sealed ring 29 is movably installed in the rotating groove 28, and the sealed ring 29 is provided with multiple groups of air inlet holes 30; the outer wall of the sealed ring 29 is also provided with multiple groups of protrusions 31.

[0044] In this embodiment, a closable window 26 is provided to prevent external airflow from interfering with the water flow of the high-pressure nozzle 9 during cleaning. To close the window 26, the sealing ring 29 is rotated using the raised portion 31, shifting the air inlet 30 from the window 26. During air drying, the sealing ring 29 is rotated using the raised portion 31, allowing the air inlet 30 to fall into the window 26.

[0045] See attached Figure 4 -Attached Figure 8 A mounting groove 32 is also provided at the top of the air inlet chamber 25, and a cleaning gear ring 33 is movably installed in the mounting groove 32. A plurality of brushes 34 for cleaning the first filter screen 27 are provided at the bottom of the cleaning gear ring 33; a driving chamber 35 is provided on the outer wall of the processing chamber 2, and the mounting groove 32 is connected to the driving chamber 35; a cleaning motor 36 is installed in the driving chamber 35, and a driving gear 37 meshing with the cleaning gear ring 33 is installed at the output end of the cleaning motor 36.

[0046] In this embodiment: When the fan 10 is started, a negative pressure is formed inside the processing chamber 2. At this time, the external air enters the air inlet chamber 25 through the air inlet hole 30, and then the air is diverted in the air inlet chamber 25. Most of the gas passes through the first filter 27 and enters the interior of the processing chamber 2 to efficiently dry the plastic particles. A small amount of air enters the storage chamber 39 through the connecting chamber 38, and enters the processing chamber 2 through the second filter 40 to also dry the particles. When the cleaning gear ring 33 rotates, multiple groups of brushes 34 will clean the surface of the first filter 27, and impurities on its surface will adhere to the brushes 34. When the brushes 34 move to the position of the connecting chamber 38, the impurities will be blown away and stored in the storage chamber 39 under the action of the branch airflow.

[0047] See attached Figure 4 and attached Figure 6 The outer wall of the bottom cover 19 is communicated with the storage chamber 39 , and a sliding frame 41 is further provided on the outer wall of the bottom cover 19 , and a door panel 42 is movably installed in the sliding frame 41 .

[0048] In this embodiment, during the air drying operation, impurities in the air filtered by the first filter 27 and the second filter 40 will be stored in the storage chamber 39. In order to facilitate timely cleaning, an openable door panel 42 structure is designed.

[0049] See attached Figure 1 and attached Figure 4A shock-absorbing base is also provided at the bottom of the supporting leg 3.

[0050] In this embodiment, in order to improve the shock-absorbing capability of the equipment and avoid excessive vibration amplitude during the crushing operation, a shock-absorbing base structure (not shown) is designed.

[0051] The working principle of the present invention is as follows: When the device is in use, waste plastics are first added to the feed hood 5, and the inner and outer feed chambers 8, 12 are aligned by the rotating motor 17. After being crushed by the crushing bin 1, the plastic passes through the inner and outer feed chambers 8, 12 and falls into the mesh frame 21 below. After the crushing is completed, the rotating motor 17 is restarted to rotate the top cover 11 to cover the inner feed chamber 8. The high-pressure nozzle 9 and stirring motor 14 are then started to thoroughly clean the plastic particles in the mesh frame 21, and the flushing wastewater is discharged to the outside through the discharge trough 20. During the air-drying operation, a negative pressure is formed inside the processing bin 2. At this time, external air enters the air intake chamber 25 through the air inlet 30, some air enters the interior of the processing bin 2 through the first filter 27, and a small amount of air enters the storage chamber 39 through the connecting chamber 38, and then enters the processing bin 2 through the second filter 40. When the cleaning gear ring 33 rotates, multiple groups of brushes 34 will clean the surface of the first filter 27. When the brushes 34 move to the position of the connecting cavity 38, the impurities on the brushes 34 will be blown away and stored in the storage cavity 39 under the action of the airflow.

[0052] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A device for recycling and processing waste plastic films from blister machines, comprising a crushing chamber (1) and a processing chamber (2), characterized in that: The crushing bin (1) is located above the processing bin (2); a top plate (7) is fixedly mounted on the top of the processing bin (2), and a plurality of spaced inner feeding cavities (8) are provided on the top plate (7); a rotating top cover (11) is movably mounted on the top of the top plate (7), and a plurality of outer feeding cavities (12) cooperating with the inner feeding cavities (8) are provided on the rotating top cover (11); a bottom cover (19) is mounted on the bottom of the processing bin (2), and a screen frame (21) for cleaning and air-drying the crushed materials is provided inside the processing bin (2); An annular air inlet cavity (25) is provided inside the processing chamber (2), a first filter screen (27) is installed on the inner wall of the air inlet cavity (25), and a connecting cavity (38) is provided at the bottom of the air inlet cavity (25); a through discharge groove (20) is provided at the bottom of the bottom cover (19), a storage cavity (39) is provided on the inner wall of the bottom cover (19), a second filter screen (40) is installed on the inner wall of the storage cavity (39), and the air inlet cavity (25) is connected to the storage cavity (39) through the connecting cavity (38).

2. The device for recycling and processing waste plastic films from blister machines according to claim 1, characterized in that: A plurality of groups of supporting legs (3) are provided on the outer wall of the processing chamber (2), the crushing chamber (1) is mounted on the top of the supporting legs (3), and a control panel (6) is also provided on the outer wall of the crushing chamber (1).

3. The device for recycling and processing waste plastic films from blister machines according to claim 1, characterized in that: A feed port (4) is provided on the top of the crushing bin (1), and a feed cover (5) is also provided on the top of the crushing bin (1).

4. The device for recycling and processing waste plastic films from blister machines according to claim 1, characterized in that: The bottom of the top plate (7) is equipped with multiple groups of high-pressure nozzles (9) located between the inner feeding chamber (8), and the high-pressure nozzles (9) are located on the top of the screen frame (21); the bottom of the top plate (7) is also equipped with multiple groups of fans (10) located outside the screen frame (21).

5. The device for recycling and processing waste plastic films from blister machines according to any one of claims 1 to 4, characterized in that: The top of the rotating top cover (11) is also provided with a material guide cover (13), the middle of the rotating top cover (11) is provided with a stirring motor (14), and the output end of the stirring motor (14) is provided with a stirring shaft (15) located inside the mesh frame (21); a discharge gear ring (16) is installed on the outer wall of the rotating top cover (11), and a rotating motor (17) is installed on the outer wall of the processing bin (2), and the output end of the rotating motor (17) is provided with a discharge gear (18) meshing with the discharge gear ring (16).

6. The device for recycling and processing waste plastic films from blister machines according to claim 1, characterized in that: The bottom of the screen frame (21) is provided with a tapered portion (22), the bottom of the tapered portion (22) is provided with a feed pipe (23), and the feed pipe (23) is provided with a control valve (24) located below the bottom cover (19).

7. A device for recycling and processing waste plastic films from a blister machine according to any one of claims 1 to 4, characterized in that: The outer wall of the processing chamber (2) is provided with a plurality of windows (26) communicating with the air inlet chamber (25); the inner walls on the upper and lower sides of the air inlet chamber (25) are provided with rotating grooves (28); a sealing ring (29) is movably installed in the rotating groove (28); the sealing ring (29) is provided with a plurality of air inlet holes (30); and the outer wall of the sealing ring (29) is also provided with a plurality of protrusions (31).

8. The device for recycling and processing waste plastic films from a blister machine according to any one of claims 1 to 4, characterized in that: The top of the air inlet chamber (25) is also provided with a mounting groove (32), a cleaning gear ring (33) is movably mounted in the mounting groove (32), and a plurality of brushes (34) for cleaning the first filter (27) are arranged at the bottom of the cleaning gear ring (33); a driving chamber (35) is provided on the outer wall of the processing chamber (2), and the mounting groove (32) is communicated with the driving chamber (35); a cleaning motor (36) is installed in the driving chamber (35), and a driving gear (37) meshing with the cleaning gear ring (33) is installed at the output end of the cleaning motor (36).

9. The device for recycling and processing waste plastic films from blister machines according to claim 1, characterized in that: The outer wall of the bottom cover (19) is communicated with the storage chamber (39). A sliding frame (41) is further provided on the outer wall of the bottom cover (19), and a door panel (42) is movably installed in the sliding frame (41).

10. The device for recycling and processing waste plastic films from blister machines according to any one of claims 1 to 4, characterized in that: The bottom of the supporting leg (3) is also provided with a shock absorbing base.

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