Non-woven fabric pbt waste melt regeneration extruder

Abstract

The utility model provides an extruder is melted to non - woven fabric PBT waste material, and the filter screen board on the filter screen box bottom is equipped with the scraper, and the scraper is connected with the electric push rod, and the electric push rod is installed in the external control box on the left side of filter screen box, and the waste material collecting box is installed on the right side of filter screen box, and the square telescopic hose top is fixed on the square tube bottom, and the square tube is located below the crushing area between the first crushing roller and the second crushing roller, and the first crushing roller and the second crushing roller are connected with the crushing drive device, and the feeding hopper is arranged on the top of filter screen box, and the utility model provides an extruder is melted to non - woven fabric PBT waste material, and solves the problem that the existing extruder is easy to block the feeding port when processing non - woven fabric PBT waste material, and the waste material is not easy to cause the unstable quality of the regenerated material.

Description

Technical Field

[0001] This utility model relates to the technical field of PBT meltblown nonwoven fabric production equipment, specifically to a nonwoven PBT waste melt recycling extruder. Background Technology

[0002] PBT plastic refers to a type of plastic mainly composed of polybutylene terephthalate. It is a high-performance thermoplastic engineering plastic with outstanding toughness, chemical resistance, and electrical insulation properties. It is widely used in many fields such as electronics, automobile manufacturing, and machinery. With the rapid development of these industries, the amount of PBT waste generated is also increasing. If this waste is not effectively recycled, it will not only waste resources but also cause serious environmental pollution.

[0003] Currently, some PBT waste melting and recycling extruders on the market, when processing non-woven PBT waste, often encounter problems. This is because non-woven PBT waste usually contains various impurities and materials in different forms, such as large pieces of debris and clumps. These uncrushed debris and clumps not only easily clog the feed inlet, but also make it difficult to plasticize evenly during the screw conveying and melting process. This results in unstable quality of the extruded recycled material, with defects such as uneven particle size and loose internal structure, which reduces the performance and use value of the recycled material and fails to meet the requirements of high-quality production. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a nonwoven PBT waste melt recycling extruder, which is equipped with crushing and filtering devices to solve the problems that existing extruders easily clog the feed inlet with impurities and clumps when processing nonwoven PBT waste, and that insufficiently crushed waste easily leads to unstable quality of recycled materials.

[0005] The technical solution adopted in this utility model is a non-woven PBT waste melt recycling extruder, including a recycling extruder body. A feed hopper is fixed at the feed inlet of the recycling extruder body. A crushing and filtering box is fixedly connected above the feed hopper. A filter screen is provided above the discharge port at the bottom of the crushing and filtering box. A scraper on the filter screen is connected to an electric push rod. The electric push rod is installed in an external control box, which is installed on the left side of the crushing and filtering box. A waste collection box is installed on the right side of the crushing and filtering box. The waste collection box is provided with a cabinet door. A square telescopic hose is provided above the filter screen. The square telescopic hose is connected to a reciprocating motion device through a moving long rod. The top end of the square telescopic hose is fixed to the bottom end of a square tube. The square tube is fixed in the crushing and filtering box by a fixed support rod. The square tube is located below the crushing zone between the first crushing roller and the second crushing roller. The first crushing roller and the second crushing roller are connected to a crushing drive device. A feeding hopper is provided at the top of the crushing and filtering box.

[0006] The crushing drive device includes a crushing motor. The first motor support at the bottom of the crushing motor is fixed on the external control box. The crushing motor is connected to a drive shaft. The drive shaft is fixedly connected to a first pulley, a bearing, and a first crushing roller. The first pulley is connected to a second pulley via a transmission belt. The second pulley is connected to a driven shaft. The driven shaft is fixedly connected to a second crushing roller and the same bearing.

[0007] There are a total of 4 bearings, which are installed in 4 outer protective boxes. The 4 outer protective boxes are fixed symmetrically on both sides of the crushing and filtering box. Two of the bearings have active drive shafts passing through them, and the other two bearings have driven drive shafts passing through them.

[0008] The crushing and filtering box has a feeding port at the top, and a feeding hopper is installed at the feeding port. There are two drive shaft through holes on the left and right side walls of the top of the crushing and filtering box, and the active drive shaft and the driven drive shaft pass through the two drive shaft through holes in the same horizontal row, respectively. There is also a limiting through hole and a first circular hole on the left side wall of the crushing and filtering box. The telescopic end of the electric push rod passes through the first circular hole. There is also a waste outlet on the right side wall of the crushing and filtering box. A waste collection box is fixed at the waste outlet. A reinforcing bracket is connected between the bottom left side of the crushing and filtering box and the main body of the recycling extruder. The bottom of the crushing and filtering box is a bottomless structure. There is a maintenance door on the front of the crushing and filtering box. There is an observation window on the maintenance door.

[0009] The reciprocating motion device includes a reciprocating stepper motor, which is mounted on a second motor support. The second motor support is fixed to the outer side wall of the back of the outer control box. A second circular hole is provided on the outer side wall of the back of the outer control box. The reciprocating stepper motor is connected to a threaded rod. The threaded rod passes through the second circular hole and is threaded to a moving block. The bottom end of the moving block is connected to a sliding rod. The sliding rod is connected to a slider located in a sliding groove. The sliding groove is fixed to a partition plate. One end of a moving long rod is connected to the side end of the moving block. The other end of the moving long rod passes through a limiting hole and is fixedly connected to a square telescopic hose.

[0010] The partition is fixed inside the external control box and is located above the electric actuator. An industrial PID controller is also installed on the partition.

[0011] A side support plate is fixed on the left outer wall of the external control box. An industrial touch screen is installed on the side support plate. The industrial touch screen is electrically connected to an industrial PID controller. The industrial PID controller is also electrically connected to a crushing motor, an electric push rod, and a reciprocating stepper motor.

[0012] The beneficial effects of this utility model are as follows: This utility model is equipped with a crushing drive device, a first crushing roller, a second crushing roller, and a filter screen. The crushing drive device can drive the first and second crushing rollers to crush the PBT waste, which can crush large pieces of debris and lumps into smaller particles. Then, the particles are filtered through the filter screen, which fully ensures the smoothness of feeding. This solves the problem that when existing extruders process non-woven PBT waste, debris and lumps not only easily clog the feed inlet, but also make it difficult to plasticize evenly during the screw conveying and melting process, resulting in unstable quality of the extruded recycled material.

[0013] In this invention, a square tube, a square telescopic hose, and a reciprocating motion device are provided. The square tube is located below the crushing zone between the first crushing roller and the second crushing roller, allowing the crushed PBT waste to enter the square telescopic hose. Then, the square telescopic hose can perform horizontal reciprocating motion under the drive of the reciprocating motion device, which can make the crushed PBT waste fall evenly onto the filter screen plate, thereby improving the filtration efficiency and effect of the filter screen plate.

[0014] In this utility model, a scraper, an electric push rod, and a waste collection box are provided. The electric push rod can push the scraper to move on the filter screen and push the unfilterable waste accumulated on the filter screen into the waste collection box, thereby realizing the automatic cleaning of the filter screen.

[0015] In this invention, an observation window is provided on the maintenance door of the crushing and filtering box to facilitate observation of the material accumulation on the filter screen and to facilitate timely cleaning of the filter screen.

[0016] This invention includes an industrial touch screen and an industrial PID controller, which facilitates parameter setting and operation control of the crushing motor, electric actuator, and reciprocating stepper motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a top view schematic diagram of the crushing drive device structure of this utility model.

[0019] Figure 3 This is a top view of the pulverizing and filtering box of this utility model.

[0020] Figure 4 This is a front view of the left side wall of the pulverizing and filtering box of this utility model.

[0021] Figure 5 This is a front view of the right side wall of the pulverizing and filtering box of this utility model.

[0022] Figure 6 This is a schematic diagram of the reciprocating motion device of this utility model.

[0023] Figure 7 This is a schematic diagram of the second circular hole and the outer control box of this utility model.

[0024] In the diagram: 1. Main body of the recycled extruder; 2. Industrial touch screen display; 3. Moving block; 4. Threaded rod; 5. First motor support; 6. Fixed support rod; 7. Crushing motor; 8. First pulley; 9. Transmission belt; 10. Bearing; 11. Outer enclosure; 12. Drive shaft; 13. First crushing roller; 14. Feed hopper; 15. Square tube; 16. Square telescopic hose; 17. Moving rod; 18. Scraper; 19. Filter screen; 20. Crushing and filtering box; 21. Cabinet door; 22. Waste collection. 23. Feed hopper, 24. Slide chute, 25. Electric actuator, 26. Reinforcing bracket, 27. Slider, 28. Slide rod, 29. External control box, 30. Partition plate, 31. Industrial PID controller, 32. Side support plate, 33. Second pulley, 34. Driven shaft, 35. Second crushing roller, 36. Feed port, 37. Drive shaft through hole, 38. Limiting through hole, 39. First round hole, 40. Waste outlet, 41. Reciprocating stepper motor, 42. Second motor support, 43. Second round hole. Detailed Implementation

[0025] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] Referring to the accompanying drawings, a non-woven PBT waste melt recycling extruder includes a recycling extruder body 1. A feed hopper 23 is fixed at the feed inlet of the recycling extruder body 1. A crushing and filtering box 20 is fixedly connected above the feed hopper 23. A filter screen plate 19 is provided above the bottom discharge port of the crushing and filtering box 20. A scraper 18 on the filter screen plate 19 is connected to an electric push rod 25. The electric push rod 25 is installed inside an external control box 29. The external control box 29 is installed on the left side of the crushing and filtering box 20. A waste collection box 22 is installed on the right side of the crushing and filtering box 20. The waste collection box 22 is equipped with a cabinet door 21. A square telescopic hose 16 is provided above the filter screen plate 19. The square telescopic hose 16 is connected to the reciprocating motion device through a movable long rod 17. The top end of the square telescopic hose 16 is fixed to the bottom end of the square tube 15. The square tube 15 is fixed inside the crushing and filtering box 20 through a fixed support rod 6. The square tube 15 is located below the crushing zone between the first crushing roller 13 and the second crushing roller 35. The first crushing roller 13 and the second crushing roller 35 are connected to the crushing drive device. A feeding hopper 14 is provided at the top of the crushing and filtering box 20.

[0027] The crushing drive device includes a crushing motor 7. The first motor support 5 at the bottom of the crushing motor 7 is fixed on the external control box 29. The crushing motor 7 is connected to the active drive shaft 12. The active drive shaft 12 is fixedly connected to the first pulley 8, the bearing 10 and the first crushing roller 13. The first pulley 8 is connected to the second pulley 33 through the transmission belt 9. The second pulley 33 is connected to the driven drive shaft 34. The driven drive shaft 34 is fixedly connected to the second crushing roller 35 and the same bearing 10.

[0028] There are a total of 4 bearings 10, which are installed in 4 outer protective boxes 11 respectively. The 4 outer protective boxes 11 are symmetrically fixed on both sides of the crushing and filtering box 20. Two of the bearings 10 have active drive shafts 12 passing through them, and the other two bearings 10 have driven drive shafts 34 passing through them.

[0029] The crushing and filtering box 20 is provided with a feeding port 36 at the top, and a feeding hopper 14 is installed at the feeding port 36. The crushing and filtering box 20 is provided with two drive shaft through holes 37 on the left and right side walls of the top, and the active drive shaft 12 and the driven drive shaft 34 pass through the two drive shaft through holes 37 in the same horizontal row, respectively. The crushing and filtering box 20 is also provided with a limiting through hole 38 and a first round hole 39 on the left side wall. The telescopic end of the electric push rod 25 passes through the first round hole 39. The crushing and filtering box 20 is also provided with a waste outlet 40 on the right side wall. A waste collection box 22 is fixed at the waste outlet 40. A reinforcing bracket 26 is connected between the bottom left side of the crushing and filtering box 20 and the main body 1 of the recycling extruder. The bottom of the crushing and filtering box 20 is a bottomless structure. The crushing and filtering box 20 is provided with a maintenance door on the front, and the maintenance door is provided with an observation window.

[0030] The reciprocating motion device includes a reciprocating stepper motor 41, which is mounted on a second motor support 42. The second motor support 42 is fixed to the outer side wall of the back of the outer control box 29. The outer side wall of the back of the outer control box 29 is provided with a second circular hole 43. The reciprocating stepper motor 41 is connected to a threaded rod 4. The threaded rod 4 passes through the second circular hole 43 and is threadedly connected to a moving block 3. The bottom end of the moving block 3 is connected to a sliding rod 28. The sliding rod 28 is connected to a slider 27 located in a sliding groove 24. The sliding groove 24 is fixed to a partition plate 30. The side end of the moving block 3 is connected to one end of a moving long rod 17. The other end of the moving long rod 17 passes through a limiting hole 38 and is fixedly connected to a square telescopic hose 16.

[0031] The partition 30 is fixed inside the external control box 29 and is located above the electric push rod 25. An industrial PID controller 31 is also installed on the partition 30.

[0032] A side support plate 32 is fixed on the outer left side wall of the external control box 29. An industrial touch screen 2 is installed on the side support plate 32. The industrial touch screen 2 is electrically connected to an industrial PID controller 31. The industrial PID controller 31 is also electrically connected to a crushing motor 7, an electric push rod 25, and a reciprocating stepper motor 41.

[0033] When using this nonwoven PBT waste melting and recycling extruder, PBT waste is fed from the feeding hopper 14 into the crushing and filtering box 20, and then crushed by the first crushing roller 13 and the second crushing roller 35. The crushed waste falls into the square tube 15, and then falls evenly onto the filter screen 19 through the horizontal reciprocating motion of the square telescopic hose 16 for filtration. The waste particles that can be filtered by the filter screen 19 will enter the main body 1 of the recycling extruder from the feeding hopper 23 for melting.

[0034] When using the first crushing roller 13 and the second crushing roller 35 for crushing operations, the crushing motor 7 is first started through the industrial touch screen 2. The crushing motor 7 drives the active drive shaft 12 to rotate. The active drive shaft 12 can drive the first crushing roller 13 and the first pulley 8 to rotate. The first pulley 8 can drive the second pulley 33 to rotate through the transmission belt 9. The second pulley 33 can drive the driven drive shaft 34 to rotate, causing the second crushing roller 35 to rotate.

[0035] When using the square telescopic hose 16 for horizontal reciprocating motion, the reciprocating stepper motor 41 is first started through the industrial touch screen 2. The reciprocating stepper motor 41 can drive the threaded rod 4 to rotate in both directions, causing the moving block 3 to move horizontally reciprocating, thereby causing the moving rod 17 to drive the square telescopic hose 16 to move horizontally reciprocating.

[0036] When the accumulated material on the filter screen 19 needs to be cleaned, the electric push rod 25 is activated via the industrial touch display screen 2. The electric push rod 25 can drive the scraper 18 to move on the filter screen 19, pushing the accumulated material on the filter screen 19 into the waste collection box 22 for temporary storage. When the waste in the waste collection box 22 needs to be cleaned, a garbage bag or garbage can can be placed under the waste collection box 22 first, and then the cabinet door 21 can be opened to clean the waste in the waste collection box 22 into the garbage bag or garbage can.

[0037] In this invention, a crushing drive device, a first crushing roller 13, a second crushing roller 35, and a filter screen 19 are provided. The crushing drive device can drive the first crushing roller 13 and the second crushing roller 35 to crush PBT waste, which can crush large pieces of debris and lumps into smaller particles. Then, the particles are filtered through the filter screen 19, which fully ensures the smoothness of feeding. This solves the problem that when existing extruders process nonwoven PBT waste, debris and lumps not only easily clog the feed inlet, but also make it difficult to plasticize evenly during the screw conveying and melting process, resulting in unstable quality of the extruded recycled material.

[0038] In this invention, a square tube 15, a square telescopic hose 16, and a reciprocating motion device are provided. The square tube 15 is located below the crushing zone between the first crushing roller 13 and the second crushing roller 35, allowing the crushed PBT waste to enter the square telescopic hose 16. Then, the square telescopic hose 16 can perform horizontal reciprocating motion under the drive of the reciprocating motion device, so that the crushed PBT waste can fall evenly onto the filter screen 19, thereby improving the filtration efficiency and effect of the filter screen 19.

[0039] In this utility model, a scraper 18, an electric push rod 25, and a waste collection box 22 are provided. The electric push rod 25 can push the scraper 18 to move on the filter screen plate 19 and push the unfilterable waste accumulated on the filter screen plate 19 into the waste collection box 22, thereby realizing the automatic cleaning of the filter screen plate 19.

[0040] In this utility model, an observation window is provided on the maintenance door of the crushing and filtering box 20 to facilitate observation of the material accumulation on the filter screen 19 and to facilitate timely cleaning of the filter screen 19.

[0041] In this invention, an industrial touch screen 2 and an industrial PID controller 31 are provided to facilitate the setting of parameters and control of the operation of the crushing motor 7, the electric push rod 25 and the reciprocating stepper motor 41.

[0042] The above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all possible implementations. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A nonwoven PBT waste melt recycling extruder, comprising a recycling extruder body (1), characterized in that: The main body (1) of the recycled extruder is equipped with a feed hopper (23) at its feed inlet. A crushing and filtering box (20) is fixedly connected above the feed hopper (23). A filter screen (19) is provided above the discharge port at the bottom of the crushing and filtering box (20). A scraper (18) on the filter screen (19) is connected to an electric push rod (25). The electric push rod (25) is installed inside an external control box (29). The external control box (29) is installed on the left side of the crushing and filtering box (20). A waste collection box (22) is installed on the right side of the crushing and filtering box (20). A cabinet door (21) is provided on the waste collection box (22). A square telescopic hose (16) is provided above the filter screen plate (19). The square telescopic hose (16) is connected to the reciprocating motion device through a moving long rod (17). The top end of the square telescopic hose (16) is fixed on the bottom end of the square tube (15). The square tube (15) is fixed in the crushing filter box (20) through a fixed support rod (6). The square tube (15) is located below the crushing area between the first crushing roller (13) and the second crushing roller (35). The first crushing roller (13) and the second crushing roller (35) are connected to the crushing drive device. A feeding hopper (14) is provided on the top of the crushing filter box (20).

2. The nonwoven PBT waste melt recycling extruder according to claim 1, characterized in that: The crushing drive device includes a crushing motor (7), the first motor support (5) at the bottom of the crushing motor (7) is fixed on the external control box (29), the crushing motor (7) is connected to the active drive shaft (12), the active drive shaft (12) is fixedly connected to the first pulley (8), the bearing (10) and the first crushing roller (13), the first pulley (8) is connected to the second pulley (33) through the transmission belt (9), the second pulley (33) is connected to the driven drive shaft (34), the driven drive shaft (34) is fixedly connected to the second crushing roller (35) and the same bearing (10).

3. The nonwoven PBT waste melt recycling extruder according to claim 2, characterized in that: There are a total of 4 bearings (10), which are installed in 4 outer protective boxes (11). The 4 outer protective boxes (11) are symmetrically fixed on both sides of the crushing and filtering box (20). Two of the bearings (10) have active drive shafts (12) passing through them, and the other two bearings (10) have driven drive shafts (34) passing through them.

4. The nonwoven PBT waste melt recycling extruder according to claim 1, characterized in that: The crushing and filtering box (20) is provided with a feeding port (36) at the top, and a feeding hopper (14) is installed at the feeding port (36). The crushing and filtering box (20) is provided with two drive shaft through holes (37) on the left and right side walls of the top, and the active drive shaft (12) and the driven drive shaft (34) pass through the two drive shaft through holes (37) in the same horizontal row, respectively. The crushing and filtering box (20) is also provided with a limiting through hole (38) and a first round hole (39) on the left side wall. The telescopic end of the electric push rod (25) passes through a round hole (39). The right side wall of the crushing and filtering box (20) is also provided with a waste outlet (40). A waste collection box (22) is fixed at the waste outlet (40). A reinforcing bracket (26) is connected between the bottom left side of the crushing and filtering box (20) and the main body (1) of the recycling extruder. The bottom of the crushing and filtering box (20) is a bottomless structure. A maintenance door is provided on the front of the crushing and filtering box (20). An observation window is provided on the maintenance door.

5. The nonwoven PBT waste melt recycling extruder according to claim 1, characterized in that: The reciprocating motion device includes a reciprocating stepper motor (41), which is mounted on a second motor support (42). The second motor support (42) is fixed on the outer side wall of the back of the outer control box (29). A second round hole (43) is provided on the back side wall of the outer control box (29). The reciprocating stepper motor (41) is connected to a threaded rod (4). The threaded rod (4) passes through the second round hole (43) and is threaded to a moving block (3). The bottom end of the moving block (3) is connected to a slide rod (28). The slide rod (28) is connected to a slider (27) located in a slide groove (24). The slide groove (24) is fixed on a partition plate (30). The side end of the moving block (3) is connected to one end of a moving long rod (17). The other end of the moving long rod (17) passes through a limiting hole (38) and is fixed to a square telescopic hose (16).

6. The nonwoven PBT waste melt recycling extruder according to claim 5, characterized in that: The partition (30) is fixed inside the external control box (29) and the partition (30) is located above the electric push rod (25). An industrial PID controller (31) is also installed on the partition (30).

7. The nonwoven PBT waste melt recycling extruder according to claim 1, characterized in that: A side support plate (32) is fixed on the left outer side wall of the external control box (29). An industrial touch screen (2) is installed on the side support plate (32). The industrial touch screen (2) is electrically connected to an industrial PID controller (31). The industrial PID controller (31) is also electrically connected to a crushing motor (7), an electric push rod (25), and a reciprocating stepper motor (41).

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