Plastic film processing device

Abstract

The invention discloses a plastic film processing device, and belongs to the field of plastic film manufacturing. A plastic film processing device comprises two sets of machine body wallboards and a conveying roller rotationally arranged between the two sets of machine body wallboards, and further comprises a preheating assembly used before a plastic film is leveled, the preheating assembly comprises a heating roller arranged in a swinging mode, and a transmission part is arranged between the heating roller and the conveying roller; the traction assembly is used for extruding and leveling the plastic film, the traction assembly comprises an upper traction shaft and a lower traction shaft, the upper traction shaft and the lower traction shaft are vertically arranged up and down, and the traction assembly is connected with a dust removal part through a transmission part; in the plastic film extruding and leveling process, it can be guaranteed that the surface of a plastic film is clean, abrasion generated in the extruding process is avoided, the product quality is guaranteed, the plastic film is softened through preheating, wrinkles on the surface are rolled to be flat and stretched in the extruding and stretching process, the softening effect is prolonged, and the subsequent extruding and leveling effect is further enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of plastic film manufacturing, and in particular to a plastic film processing device. Background Art

[0002] With the development of the economy and the adjustment of the rural industrial structure, the market demand for plastic film in various industries in China has continued to rise, and plastic film is most widely used in the packaging field. Plastic film can be used for food packaging, electrical product packaging, daily necessities packaging, clothing packaging, etc. Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical industry and other fields. After the preparation, the plastic film needs to be rolled and packaged using a winder for subsequent production use.

[0003] Plastic film is prone to wrinkles during the production process, and most existing plastic film flattening devices flatten the film by squeezing it. During the squeezing and flattening process, dust deposition on the surface of the plastic film often causes extrusion wear. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the plastic film may be worn or deformed due to defects in the flattening process in the prior art, and to propose a plastic film processing device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A plastic film processing device, comprising two sets of machine wall panels and a conveying roller rotatably arranged between the two sets of machine wall panels, and also comprising a preheating assembly for plastic film before flattening, the preheating assembly comprising a swinging heating roller, and a transmission part is arranged between the heating roller and the conveying roller;

[0007] A traction assembly for squeezing and flattening a plastic film comprises an upper traction shaft and a lower traction shaft, the upper traction shaft and the lower traction shaft are vertically arranged up and down, and the traction assembly is connected with a dust removal part through a transmission part.

[0008] Preferably, the transmission part includes a first gear fixedly mounted on both ends of the conveying roller, the first gear is arranged in a half gear structure, two groups of first racks are meshed and symmetrically arranged on both sides of the first gear, a second rack is fixedly connected to the bottom of the two groups of first racks, and a second gear is meshed on one side of the second rack.

[0009] In order to enable the heating roller to swing, thereby extending the contact time between the heating roller and the plastic film, further, a rotating shaft is rotatably installed in the wall panel of the body, swing arms are symmetrically installed on the surface of the rotating shaft, the heating roller is rotatably installed between the swing arms, and the second gear is fixedly installed at both ends of the rotating shaft.

[0010] Preferably, the upper traction shaft and the lower traction shaft are both rotatably installed between two groups of body wall panels, the inner walls of the body wall panels are symmetrically provided with fixed support plates, the two groups of lower traction shafts are rotatably installed between the fixed support plates, the inner walls of the two groups of body wall panels are provided with movable plates above the fixed support plates, and the upper traction shaft is rotatably installed between the two groups of movable plates.

[0011] In order to adapt to plastic films of different thicknesses, a lifting assembly is further provided between the movable plate and the body wall panel, the lifting assembly comprising a motor and a screw rod for driving the movable plate to lift and lower on the inner wall of the body wall panel, and a support plate is fixedly installed on the inner wall of the body wall panel.

[0012] To ensure smooth movement of the support plate, a drive sleeve is rotatably installed in the support plate, and a synchronous pulley is fixedly installed on the output shaft end of the drive sleeve and the motor. The two sets of synchronous pulleys are transmission connected, one end of the screw rod is threadedly connected to the drive sleeve, and the other end of the screw rod is rotatably installed in the movable plate through a bearing, and two sets of linear guide rails are symmetrically arranged on one side of the movable plate, and the linear guide rails are fixedly installed on the inner wall of the machine body wall panel.

[0013] Preferably, the upper traction shaft and the lower traction shaft both include a hollow roller core and a roller rubber sleeve wrapped around the outside of the hollow roller core, air outlet holes are opened through the hollow roller core and the roller rubber sleeve, and a second dust collecting cover is arranged above the two groups of upper traction shafts.

[0014] Preferably, the dust removal part includes a bellows, which is connected to the hollow roller core, an upper roller air inlet pipe is connected between the two groups of upper traction shafts, and a lower roller air inlet pipe is connected between the two groups of lower traction shafts, and the upper roller air inlet pipe and the lower roller air inlet pipe are connected to the hollow roller core through a second air pipe respectively.

[0015] In order to effectively remove the dust shaken off by the vibration roller and prevent it from falling back onto the plastic film, further, a vibration roller is rotatably installed on one side of the conveying roller and is located between the two groups of body wall panels, and the surface of the vibration roller has rotatably arranged rollers in an equidistant array, and two groups of ear plates are symmetrically arranged on both sides of the roller, and the ear plates are fixedly connected to the vibration roller, and a first dust collecting hood is arranged above the vibration roller, and two groups of first air pipes are connected to one side of the bellows, and the first air pipes are connected to a first dust collecting box, and the first dust collecting box is installed between the two groups of body wall panels and is located below the vibration roller.

[0016] In order to enable the bellows to perform the functions of sucking and blowing air at the same time, the bellows is further divided into two cavities by a piston plate, and a piston rod is connected to the piston plate. The top of the piston rod is fixedly connected to the first rack through a linkage frame, and the two groups of the first air pipes and the two groups of the second air pipes are respectively connected to the upper and lower cavities in the bellows, and the first air pipe and the second air pipe are both connected with a one-way valve.

[0017] Compared with the prior art, the present invention provides a plastic film processing device having the following

[0018] Beneficial effects:

[0019] 1. The plastic film processing device, by setting the upper traction shaft and the lower traction shaft used for extrusion and flattening as rollers with air outlet holes, removes dust from the upper and lower sides of the plastic film, ensuring that the surface of the plastic film is clean during the extrusion process, avoiding wear and tear during the extrusion process, and ensuring product quality;

[0020] 2. The plastic film processing device softens the plastic film by setting a preheating component before extrusion, so that the wrinkles on the surface of the film are rolled flat and stretched during the extrusion and stretching process. At the same time, the heating roller is in a reciprocating swing state during the conveying process of the plastic film, which prolongs the contact time between the heating roller and the plastic film, prolongs the softening effect, and enhances the subsequent extrusion and flattening effect;

[0021] 3. The plastic film processing device is provided with a dust removal part, and uses a vibration roller with a roller to generate a certain vibration promotion effect on the plastic film during the rotation process, so that the accumulated dust is separated from the plastic film. A first dust collection box and a first dust collection cover are respectively provided above and below the vibration roller to absorb the separated accumulated dust in time, thereby improving the dust removal effect;

[0022] 4. The plastic film processing device is provided with a bellows, and the piston rod in the bellows is linked with the transmission part, which can not only provide suction for the first dust collecting box, but also provide blowing for the air outlet of the traction part, which effectively saves the equipment cost, further improves the dust removal effect, and avoids the wear caused by the roller conveying process.

[0023] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. During the extrusion and flattening process of the plastic film, the present invention can ensure the cleanliness of the surface, avoid wear and tear during the extrusion process, and ensure product quality; the plastic film is softened by preheating, and the wrinkles on the surface of the film are rolled and stretched during the extrusion and stretching process, thereby prolonging the softening effect and further enhancing the subsequent extrusion and flattening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a plastic film processing device proposed by the present invention;

[0025] Figure 2 A schematic diagram of the internal structure of a plastic film processing device proposed by the present invention in a state without a dust collecting cover;

[0026] Figure 3This is a schematic diagram of the three-dimensional structure of a preheating component of a plastic film processing device proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of a traction assembly of a plastic film processing device proposed by the present invention;

[0028] Figure 5 This is a cross-sectional three-dimensional structural schematic diagram of a traction assembly of a plastic film processing device proposed by the present invention;

[0029] Figure 6 A schematic diagram of a cross-sectional three-dimensional structure of a bellows of a plastic film processing device proposed by the present invention;

[0030] Figure 7 A schematic diagram of the three-dimensional structure of a vibrating roller and a dust removal part of a plastic film processing device proposed by the present invention;

[0031] Figure 8 A plastic film processing device proposed by the present invention Figure 7 The enlarged structural diagram of part A in the middle;

[0032] Fig. 9 A schematic cross-sectional view of a dust collecting cover of a plastic film processing device proposed by the present invention;

[0033] Fig.10 This is a schematic diagram of the elastic connection structure of a tensioning shaft of a plastic film processing device proposed by the present invention.

[0034] In the figure: 1, machine body wall panel; 2, conveying roller; 3, upper traction shaft; 4, tensioning shaft; 5, heating roller; 6, vibration roller; 7, roller wheel; 8, first rack; 9, first gear; 10, second rack; 11, second gear; 12, rotating shaft; 13, swing arm; 14, bellows; 15, piston plate; 16, first air pipe; 17, piston rod; 18, second air pipe; 19, one-way valve; 20, linkage frame; 21, first dust hood; 22, second dust hood; 23, first dust box ; 24. Upper roller air inlet pipe; 25. Ear plate; 26. Lower roller air inlet pipe; 27. Air outlet; 28. Roller rubber sleeve; 29. ​​Hollow roller core; 30. Second dust collecting box; 31. Dust suction pipe; 32. Electrostatic dust removal ring; 33. Motor; 34. Screw; 35. Linear guide rail; 36. Moving plate; 37. Driving sleeve; 38. Synchronous pulley; 39. Moving bearing seat; 40. Guide rod; 41. Spring; 42. Support plate; 43. Bracket; 44. Lower traction shaft; 45. Fixed support plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Example:

[0038] Reference Figure 1-Figure 10 A plastic film processing device includes two sets of machine wall panels 1 and a conveying roller 2 rotatably arranged between the two sets of machine wall panels 1. The plastic film enters the leveling process after the previous process, and the conveying roller 2 and other rollers are used to drive the plastic film to be transmitted and finally rolled into shape.

[0039] It should be noted that, in this embodiment, a tensioning shaft 4 is further provided on one side of the conveying roller 2, and the tensioning shaft 4 can ensure that the plastic film is always kept in a tensioned state during the transmission process to avoid looseness, which is not conducive to subsequent leveling and winding.

[0040] Specifically, an elastic connection component is arranged between the two ends of the tensioning shaft 4 and the body wall panel 1, and the elastic connection component includes a bracket 43 and a movable bearing seat 39 slidably arranged on one side of the bracket 43. The tensioning shaft 4 is rotatably installed between the two groups of movable bearing seats 39. A guide rod 40 is fixedly connected to the bottom of the movable bearing seat 39, and a support plate 42 is fixedly connected to one side of the bracket 43. The guide rod 40 is slidably inserted in the support plate 42, and a spring 41 is arranged between the movable bearing seat 39 and the support plate 42 and on the outside of the guide rod 40.

[0041] The plastic film processing device further comprises a preheating assembly for flattening the plastic film, wherein the preheating assembly comprises a swinging heating roller 5 .

[0042] In this embodiment, a preheating assembly is provided before extrusion, and the heating roller 5 is rotated in contact with the plastic film to soften the plastic film, so that wrinkles on the surface of the film are rolled flat and stretched during the subsequent extrusion and stretching process.

[0043] Furthermore, a transmission part is arranged between the heating roller 5 and the conveying roller 2, and the transmission part includes a first gear 9 fixedly mounted on both ends of the conveying roller 2, the first gear 9 is arranged in a semi-gear structure, and two groups of first racks 8 are meshed and symmetrically arranged on both sides of the first gear 9, and a second rack 10 is fixedly connected to the bottom of the two groups of first racks 8, and a second gear 11 is meshed on one side of the second rack 10.

[0044] In this embodiment, the first gear 9 is set as a half gear structure, and a group of first racks 8 are meshed on both sides of the first gear 9. During the rotation of the first gear 9, the teeth will move the first rack 8 in the direction of rotation, thereby driving the second rack 10 under the two groups of first racks 8 to move up and down.

[0045] It should be noted that the first rack 8 , the first gear 9 and the second rack 10 are all slidably connected to the side wall of the machine body wall panel 1 .

[0046] A rotating shaft 12 is rotatably mounted in the machine body wall panel 1 , swing arms 13 are symmetrically mounted on the surface of the rotating shaft 12 , the heating roller 5 is rotatably mounted between the swing arms 13 , and the second gear 11 is fixedly mounted on both ends of the rotating shaft 12 .

[0047] Specifically, the rotating shaft 12 is used to drive two groups of swing arms 13 to rotate and connect between the two groups of machine wall panels 1. Second gears 11 are installed at both ends of the rotating shaft 12. The second rack 10 that moves up and down is meshed with the second gear 11. Therefore, as the conveying roller 2 rotates, the rotating shaft 12 can be driven to swing back and forth within a certain angle, thereby reciprocatingly following the transmission swing of the plastic film, so that the heating roller 5 and the plastic film are attached to a certain stroke. Compared with the existing line contact between the preheating shaft and the plastic film, the preheating time is extended.

[0048] It should be noted that the heating roller 5 is set to be a JHJRG series electromagnetic heating roller structure, which has uniform temperature distribution and is quick to install.

[0049] The traction assembly is used for squeezing and leveling the plastic film. The traction assembly comprises an upper traction shaft 3 and a lower traction shaft 44. The upper traction shaft 3 and the lower traction shaft 44 are vertically arranged up and down. The traction assembly is connected with a dust removal part through a transmission part.

[0050] In this embodiment, the upper traction shaft 3 and the lower traction shaft 44 which are vertically arranged are used to carry out traction, transportation, extrusion and leveling control on the plastic film.

[0051] The upper traction shaft 3 and the lower traction shaft 44 are both rotatably installed between the two groups of body wall panels 1. The inner walls of the body wall panels 1 are symmetrically provided with fixed support plates 45. The two groups of lower traction shafts 44 are rotatably installed between the fixed support plates 45. The inner walls of the two groups of body wall panels 1 are provided with movable plates 36 above the fixed support plates 45. The upper traction shaft 3 is rotatably installed between the two groups of movable plates 36.

[0052] In order to provide the traction component with adaptability to plastic films of different thicknesses, the upper traction shaft 3 is arranged on a liftable movable plate 36. The gap between the upper traction shaft 3 and the lower traction shaft 44 can be adjusted according to the thickness of the plastic film, which not only expands the applicable scope of the equipment, but also effectively regulates the extrusion force.

[0053] A lifting assembly is arranged between the movable plate 36 and the body wall panel 1, and the lifting assembly includes a motor 33 and a screw rod 34 for driving the movable plate 36 to lift and lower on the inner wall of the body wall panel 1. A support plate 42 is fixedly installed on the inner wall of the body wall panel 1, and a drive sleeve 37 is rotatably installed in the support plate 42. The drive sleeve 37 and the output shaft ends of the motor 33 are fixedly installed with synchronous pulleys 38, and the two sets of synchronous pulleys 38 are transmission connected. One end of the screw rod 34 is threadedly connected in the drive sleeve 37, and the other end of the screw rod 34 is rotatably installed in the movable plate 36 through a bearing. Two sets of linear guides 35 are symmetrically arranged on one side of the movable plate 36, and the linear guide 35 is fixedly installed on the inner wall of the body wall panel 1.

[0054] In this embodiment, when it is necessary to adjust the gap between the upper traction shaft 3 and the lower traction shaft 44, the motor 33 is started to drive the drive sleeve 37 to rotate, so that the screw rod 34 rotates and rises / falls in the drive sleeve 37. Since the bottom end of the screw rod 34 is connected to the movable plate 36, and the movable plate 36 is slidably connected to the inner wall of the body wall panel 1 through two sets of linear guide rails 35, the movable plate 36 is lifted / lowered, and finally the gap between the upper traction shaft 3 and the lower traction shaft 44 is regulated.

[0055] The upper traction shaft 3 and the lower traction shaft 44 both include a hollow roller core 29 and a roller rubber sleeve 28 wrapped around the outside of the hollow roller core 29 , and air outlet holes 27 are opened through the hollow roller core 29 and the roller rubber sleeve 28 . A second dust collecting cover 22 is arranged above the two groups of upper traction shafts 3 .

[0056] In this embodiment, rollers with air outlet holes 27 are provided in the upper traction shaft 3 and the lower traction shaft 44. During the rotation, air is blown to the upper and lower sides of the plastic film to ensure that the surface of the plastic film is clean during the extrusion process, avoid wear during the extrusion process, and ultimately ensure product quality.

[0057] It should be noted that the blown-up dust may fall back, so the dust can be removed by starting the second dust collecting hood 22. Specifically, a second dust collecting box 30 is provided in the second dust collecting hood 22, and dust collecting pipes 31 are arranged in an equidistant array at the bottom of the second dust collecting box 30. The second dust collecting box 30 and the dust collecting pipes 31 are connected, and an electrostatic dust removal ring 32 is connected to the bottom opening of the dust collecting pipe 31.

[0058] In this embodiment, the second dust collecting hood 22 is connected to an external dust suction fan. During the transmission of the plastic film, the external dust suction fan is always started to absorb the dust accumulated around the plastic film. At the same time, an electrostatic dust removal ring 32 is arranged at the bottom of the dust suction pipe 31, which can effectively prevent the possibility of dust accumulation falling back when the dust suction fan is unstable.

[0059] The dust removal part includes a bellows 14, which is connected to the hollow roller core 29. An upper roller air inlet pipe 24 is connected between the two groups of upper traction shafts 3, and a lower roller air inlet pipe 26 is connected between the two groups of lower traction shafts 44. The upper roller air inlet pipe 24 and the lower roller air inlet pipe 26 are connected to the hollow roller core 29 through the second air pipe 18 respectively.

[0060] In this embodiment, the bellows 14 is connected to the hollow roller core 29, and the upper traction shaft 3 and the lower traction shaft 44 are connected through the lower roller air inlet pipe 26 and the upper roller air inlet pipe 24 respectively, and then the lower roller air inlet pipe 26 and the upper roller air inlet pipe 24 are connected through two groups of second air pipes 18, thereby realizing the connection between the bellows 14 and the upper traction shaft 3 and the lower traction shaft 44 respectively, and the bellows 14 is used to convey airflow to the upper traction shaft 3 and the lower traction shaft 44, and blown out through the air outlet 27, so as to remove dust that may remain on the surface of the plastic film during extrusion.

[0061] A vibration roller 6 is rotatably installed on one side of the conveying roller 2 and is located between the two groups of body wall panels 1. Rollers 7 are rotatably installed in an equidistant array on the surface of the vibration roller 6. Two groups of ear plates 25 are symmetrically arranged on both sides of the roller 7. The ear plates 25 are fixedly connected to the vibration roller 6. A first dust collecting hood 21 is arranged above the vibration roller 6. Two groups of first air pipes 16 are connected to one side of the bellows 14. The first air pipe 16 is connected to a first dust collecting box 23. The first dust collecting box 23 is installed between the two groups of body wall panels 1 and is located below the vibration roller 6.

[0062] In this embodiment, in order to prevent the dust on the plastic film from sticking to the heating roller 5 or the plastic film body during the preheating process, a vibration roller 6 is provided on one side of the machine body wall panel 1. The vibration roller 6 with a roller 7 is used to generate a certain vibration promoting effect on the plastic film during the rotation process, so that the dust is separated from the plastic film. A first dust collecting box 23 and a first dust collecting hood 21 are respectively provided on and below the vibration roller 6 to absorb the separated dust in time and improve the dust removal effect.

[0063] The bellows 14 is divided into two cavities by a piston plate 15, and a piston rod 17 is connected to the piston plate 15. The top of the piston rod 17 is fixedly connected to the first rack 8 through a linkage frame 20. Two groups of first air pipes 16 and two groups of second air pipes 18 are respectively connected to the upper and lower cavities in the bellows 14, and both the first air pipe 16 and the second air pipe 18 are connected to a one-way valve 19.

[0064] In specific operation, the piston rod 17 in the bellows 14 moves back and forth in the bellows 14 following the rise and fall of the first rack 8. Since the first air pipe 16 is connected to the first dust collecting box 23, it is necessary to absorb the dust dropped due to vibration. Therefore, the one-way valve 19 arranged in the first air pipe 16 is opened only during air intake.

[0065] Since the second air pipe 18 is connected to the upper traction shaft 3 and the lower traction shaft 44, it is necessary to blow air to remove dust on the surface of the plastic film to prevent the plastic film from being worn during extrusion. Therefore, the one-way valve 19 in the second air pipe 18 is only opened when the air is discharged;

[0066] In summary, by setting up the bellows 14 so that the piston rod 17 and the transmission part inside it are linked, it can not only provide suction effect for the first dust collecting box 23, but also provide blowing effect for the air outlet 27 of the traction part, which effectively saves equipment costs, further improves the dust removal effect, and avoids wear and tear caused by roller conveying.

[0067] In the present invention, first, the whole machine is started, the conveying roller 2, the upper traction shaft 3, the tensioning shaft 4, the lower traction shaft 44, the vibration roller 6 and the external dust suction fan are all started, and the plastic film is conveyed to the rear sequence under the rotation of the roller shaft. When passing through the vibration roller 6, the roller wheel 7 arranged on the surface of the vibration roller 6 follows the rotation of the vibration roller 6 and intermittently contacts the plastic film, so that the plastic film is shaken, and the dust on the surface is separated from the plastic film, and the dust is timely adsorbed and removed by the first dust collecting cover 21 above and the first dust collecting box 23 below respectively;

[0068] When the conveying roller 2 rotates, the first gear 9 rotates, and the teeth on the surface of the first gear 9 will move the first racks 8 on both sides in the direction of rotation, thereby driving the second racks 10 under the two groups of first racks 8 to move up and down. Since the second racks 10 are meshed with the second gear 11, the second gear 11 drives the rotating shaft 12 to rotate a certain angle, and the rotating shaft 12 drives the two groups of swing arms 13 to rotate so that the heating roller 5 and the plastic film are attached to a certain stroke, thereby extending the preheating time, extending the softening effect, and enhancing the subsequent extrusion and flattening effect;

[0069] The plastic film is continuously transported to the traction assembly position, and the relative rotation of the upper traction shaft 3 and the lower traction shaft 44 drives the plastic film forward while squeezing and flattening the preheated plastic film. At the same time, under the action of the piston rod 17 in the bellows 14, the lower roller air inlet pipe 26 and the upper roller air inlet pipe 24 are connected through the second air pipe 18, thereby connecting the bellows 14 and the upper traction shaft 3 and the lower traction shaft 44. The bellows 14 is used to transport airflow to the upper traction shaft 3 and the lower traction shaft 44, and blown out through the air outlet 27, thereby removing dust that may remain on the surface of the plastic film during extrusion, completing flattening, and will not cause wear to the plastic film.

[0070] The specific implementation of this embodiment includes the following steps:

[0071] Step 1: After the plastic film enters the conveying roller 2 through the preceding process, a vibration dust removal device is provided at the front end of the conveying roller 2. After the dust adsorbed by electrostatic force is separated from the plastic film by vibration, the dust above the plastic film is adsorbed by the first dust collecting cover 21;

[0072] Step 2: After the plastic film is dusted, it is preheated and the heating roller 5 is reciprocated to heat the plastic film during its transportation, thereby extending the contact time between the heating roller 5 and the plastic film.

[0073] Step three: Through the continuous conveying of the conveying roller 2, the plastic film is squeezed and flattened through the traction and extrusion of the upper traction shaft 3 and the lower traction shaft 44. At the same time, due to the action of the transmission part, the upper traction shaft 3 and the lower traction shaft 44 discharge airflow through the air outlet 27 during the rotation process to remove the dust accumulated on the surface of the plastic film.

[0074] It should be noted that the rotation of the roller is driven by a servo motor, and those skilled in the art are aware of its working principle, so it will not be described in detail.

[0075] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic film processing device, comprising two sets of machine wall panels (1) and a conveying roller (2) rotatably arranged between the two sets of machine wall panels (1), characterized in that: Also includes: A preheating component used before flattening a plastic film, the preheating component comprising a swinging heating roller (5), a transmission part being arranged between the heating roller (5) and the conveying roller (2); A traction assembly for squeezing and flattening a plastic film, the traction assembly comprising an upper traction shaft (3) and a lower traction shaft (44), the upper traction shaft (3) and the lower traction shaft (44) being arranged vertically up and down, and the traction assembly is connected to a dust removal part via a transmission part.

2. A plastic film processing device according to claim 1, characterized in that: The transmission part comprises a first gear (9) fixedly mounted on both ends of the conveying roller (2); the first gear (9) is arranged in a half gear structure; two groups of first racks (8) are meshed and symmetrically arranged on both sides of the first gear (9); the bottoms of the two groups of first racks (8) are fixedly connected with second racks (10); and one side of the second rack (10) is meshed with a second gear (11).

3. A plastic film processing device according to claim 2, characterized in that: A rotating shaft (12) is rotatably mounted inside the machine body wall panel (1), swing arms (13) are symmetrically mounted on the surface of the rotating shaft (12), the heating roller (5) is rotatably mounted between the swing arms (13), and the second gear (11) is fixedly mounted on both ends of the rotating shaft (12).

4. A plastic film processing device according to claim 1, characterized in that: The upper traction shaft (3) and the lower traction shaft (44) are both rotatably mounted between two groups of machine wall panels (1); fixed support plates (45) are symmetrically arranged on the inner walls of the machine wall panels (1); the two groups of lower traction shafts (44) are rotatably mounted between the fixed support plates (45); the inner walls of the two groups of machine wall panels (1) are both provided with movable plates (36) above the fixed support plates (45); and the upper traction shaft (3) is rotatably mounted between the two groups of movable plates (36).

5. A plastic film processing device according to claim 4, characterized in that: A lifting assembly is provided between the movable plate (36) and the machine body wall panel (1), the lifting assembly comprising a motor (33) and a screw rod (34) for driving the movable plate (36) to move up and down on the inner wall of the machine body wall panel (1), and a support plate (42) is fixedly mounted on the inner wall of the machine body wall panel (1).

6. A plastic film processing device according to any one of claim 5, characterized in that: A driving sleeve (37) is rotatably mounted in the support plate (42); a synchronous pulley (38) is fixedly mounted on the output shaft ends of the driving sleeve (37) and the motor (33); two sets of synchronous pulleys (38) are transmission-connected; one end of the screw rod (34) is threadedly connected in the driving sleeve (37); and the other end of the screw rod (34) is rotatably mounted in the moving plate (36) through a bearing; two sets of linear guide rails (35) are symmetrically arranged on one side of the moving plate (36); and the linear guide rails (35) are fixedly mounted on the inner wall of the machine body wall panel (1).

7. A plastic film processing device according to any one of claim 1, characterized in that: The upper traction shaft (3) and the lower traction shaft (44) both comprise a hollow roller core (29) and a roller rubber sleeve (28) wrapped around the outside of the hollow roller core (29); air outlet holes (27) are provided through the hollow roller core (29) and the roller rubber sleeve (28); and a second dust collecting cover (22) is provided above the two groups of upper traction shafts (3).

8. A plastic film processing device according to claim 7, characterized in that: The dust removal section comprises a bellows (14), the bellows (14) is connected to a hollow roller core (29), an upper roller air inlet pipe (24) is connected between the two groups of upper traction shafts (3), a lower roller air inlet pipe (26) is connected between the two groups of lower traction shafts (44), and the upper roller air inlet pipe (24) and the lower roller air inlet pipe (26) are respectively connected to the hollow roller core (29) via a second air pipe (18).

9. A plastic film processing device according to claim 8, characterized in that: A vibration roller (6) is rotatably mounted on one side of the conveying roller (2) and located between the two sets of machine wall panels (1); roller wheels (7) are rotatably mounted in an equidistant array on the surface of the vibration roller (6); two sets of ear plates (25) are symmetrically mounted on both sides of the roller wheel (7); the ear plates (25) and the vibration roller (6) are fixedly connected; a first dust collecting hood (21) is arranged above the vibration roller (6); two sets of first air pipes (16) are connected to one side of the wind box (14); the first air pipes (16) are connected to a first dust collecting box (23); the first dust collecting box (23) is installed between the two sets of machine wall panels (1) and located below the vibration roller (6).

10. A plastic film processing device according to claim 9, characterized in that: The bellows (14) is divided into two cavities by a piston plate (15). A piston rod (17) is connected to the piston plate (15). The top end of the piston rod (17) is fixedly connected to the first rack (8) via a linkage frame (20). Two groups of the first air pipes (16) and two groups of the second air pipes (18) are respectively connected to the upper and lower cavities in the bellows (14), and both the first air pipes (16) and the second air pipes (18) are connected to a one-way valve (19).

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