CN113551490B - Plastic film dewatering device and method - Google Patents
Plastic film dewatering device and method Download PDFInfo
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- CN113551490B CN113551490B CN202110789278.1A CN202110789278A CN113551490B CN 113551490 B CN113551490 B CN 113551490B CN 202110789278 A CN202110789278 A CN 202110789278A CN 113551490 B CN113551490 B CN 113551490B
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- 239000002985 plastic film Substances 0.000 title claims abstract description 191
- 229920006255 plastic film Polymers 0.000 title claims abstract description 191
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 55
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 62
- 238000005096 rolling process Methods 0.000 claims description 31
- 238000007790 scraping Methods 0.000 claims description 31
- 238000010521 absorption reaction Methods 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 238000007664 blowing Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 5
- 238000007906 compression Methods 0.000 claims 5
- 230000005611 electricity Effects 0.000 description 5
- 208000005156 Dehydration Diseases 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/16—Drying solid materials or objects by processes not involving the application of heat by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/001—Drying and oxidising yarns, ribbons or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a plastic film dewatering device and a plastic film dewatering method, which comprise a guide roller set, a wiper blade set and a drying unit which are sequentially passed through by a plastic film, wherein the guide roller set, the wiper blade set and the drying unit are respectively fixedly connected to a rack and are respectively and electrically connected with a numerical control unit, the guide roller set is used for compressing and guiding the upper surface and the lower surface of a conveyed plastic film under the control of the numerical control unit, a vacuum cavity communicated with a vacuum pump is arranged in the guide roller set, the vacuum pump is electrically connected with the numerical control unit, a plurality of adsorption holes communicated with the vacuum cavity penetrate through the guide roller set at intervals, a water-absorbing sponge layer is coated on the surface of the guide roller set, a width adjusting unit used for adjusting the width of the wiper blade set is arranged on the wiper blade set, and the numerical control unit controls the width adjusting unit to adjust the width of the wiper blade set so as to form effective dewatering for plastic films with different widths.
Description
Technical Field
The invention relates to the technical field of plastic film dewatering, in particular to a plastic film dewatering device and method.
Background
The flat wire is formed by heating, extruding, cutting, stretching and rolling raw materials by a wire drawing machine, wherein the raw materials are extruded and then formed into a plastic film in a water tank; the existing water removal device for the plastic film can not remove water for the plastic films with different widths and different thicknesses, has strong limitation and can not be widely applied; the water absorption cotton of the existing plastic film dewatering device can not be reused after absorbing water on the surface of the plastic film, and the water absorption cotton needs to be replaced, so that time and labor are wasted.
Disclosure of Invention
The present invention provides a plastic film dewatering device and method for solving the above-mentioned problems of the prior art.
The technical scheme of the invention is realized as follows:
the utility model provides a plastic film dewatering device, the key point lies in, including the plastic film loop through be used for to the plastic film carry on the direction compress tightly the guide roller group, be used for scraping the wiper blade group of moisture and be used for carrying out the drying unit of drying to the plastic film surface extrusion to the plastic film surface, guide roller group, wiper blade group and drying unit link firmly respectively in the frame and be connected with the numerical control unit electricity respectively, the guide roller group in under the control of numerical control unit, compress tightly the direction to the upper and lower surface of the plastic film of carrying, be provided with the vacuum chamber that is linked together with the vacuum pump in the guide roller group, the vacuum pump with the numerical control unit electricity is connected, in the guide roller group and with plastic film surface contact's one side at the interval run-through have a plurality of with the absorption hole that the vacuum chamber communicates, the surperficial cladding of guide roller group has the sponge layer of absorbing of plastic film moisture, be provided with the width regulating unit that is used for adjusting its width on the wiper blade group, the numerical control unit control width regulating unit control carries out width regulation to wiper blade group to constitute the effective dewatering to different plastic film widths.
Preferably, the guide roller set includes two pinch roller assemblies that set up about the plastic film symmetry, and one of them pinch roller assembly is provided with the clearance adjustment unit that is used for driving it along vertical movement and is connected with the numerical control unit electricity, two pinch roller assembly respectively with the upper and lower surface extrusion contact of plastic film, pinch roller assembly includes two roll rollers with plastic film surface contact, the both ends of roll roller are rotated respectively and are connected with the connecting rod, the other end of connecting rod is rotated and is connected with the riser, be provided with elastomeric element between connecting rod and the riser, elastomeric element, riser and the triangle-shaped structure is constituteed to the connecting rod, with one side two the connecting rod respectively in the bilateral symmetry setting of riser, two the riser links firmly the fixed plate parallel with the horizontal plane, the fixed plate install in the frame.
Preferably, the gap adjusting unit comprises a fixed plate fixedly connected with the frame and located on the lower side of the plastic film, a driving cylinder electrically connected with the numerical control unit is fixedly connected to the bottom of the fixed plate on the lower side of the plastic film, and the driving cylinder is mounted on the frame.
Preferably, the elastic component comprises a return spring rod, the return spring rod comprises a telescopic rod rotatably connected with the middle of the connecting rod, the telescopic rod is inserted into the loop bar, the loop bar is rotatably connected with the vertical plate, and a return spring is fixedly connected between the loop bar and the telescopic rod.
Preferably, the vacuum cavity is formed inside the rolling roller, the adsorption holes are formed in the rolling roller at intervals, the water absorption sponge layer is wrapped on the outer surface of the rolling roller, one end of the rolling roller is communicated with the vacuum pump fixedly connected with the fixed plate through an exhaust pipe, the other end of the rolling roller is communicated with a drain pipe, and the drain pipe extends into a water tank arranged on the rack.
Preferably, the wiper blade group comprises two wiper blades symmetrically arranged about the plastic film, the two wiper blades respectively wipe off moisture on the upper surface and the lower surface of the plastic film, a driving hydraulic cylinder which is used for driving the wiper blades to move vertically and is fixedly connected with the rack is arranged on the wiper blades, the driving hydraulic cylinder is electrically connected with the numerical control unit, a pressure sensor which is used for detecting the pressure of the wiper blades on the plastic film is arranged on the wiper blades, and the pressure sensor is electrically connected with the numerical control unit.
Preferably, the shape of scraper blade is the arc, and the material of scraper blade is the elasticity material, width regulation unit includes two rotor plates that are parallel to each other that the position punishment that is close to the scraper blade both ends do not links firmly, two link firmly the dwang between the rotor plate, in two pass through between the rotor plate the dwang rotates and is connected with L type slider, is close to the plastic film the rotor plate with install between the L type slider pressure sensor, two L type slider sliding connection is in with the parallel slide of horizontal plane on, a lead screw wears through two L type slider, and with L type slider threaded connection, the one end and the driving motor transmission of lead screw are connected, driving motor link firmly in on the slide and be connected with the numerical control unit electricity, two L type slider sliding connection are in the spout of seting up in the slide, the slide with the output pole of drive pneumatic cylinder links firmly, the slide links firmly with the middle part of scraper blade, the cylinder body of drive pneumatic cylinder links firmly on the mounting panel, the mounting panel link firmly in the frame.
Preferably, the middle part of the scraper blade is fixed with the sliding plate through a connecting plate, one end of the connecting plate is fixedly connected with the sliding plate, and the other end of the connecting plate is fixedly connected with the middle part of the scraper blade through a fixing bolt.
Preferably, the drying unit comprises a fan fixedly connected to the rack, the fan is communicated with the drying plate through an air pipe, the cross section of the drying plate is U-shaped, the plastic film is arranged in the U-shaped drying plate, a plurality of air blowing holes are formed in the side, close to the plastic film, of the drying plate at intervals, a heating unit is arranged on the air pipe between the fan and the drying plate, and the fan is electrically connected with the numerical control unit.
The invention provides another technology, and a method of a plastic film dewatering device, which specifically comprises the following steps:
s1, firstly, a plastic film is guided through rolling rollers of a guide roller group, a numerical control unit controls a driving cylinder to enable a fixing plate on the lower side of the plastic film to vertically move, and a gap between the rolling rollers on the upper side and the lower side of the plastic film is adjusted, so that the plastic films with different thicknesses can be compressed and guided, the plastic films are more flat, a water absorption sponge layer on the surface of each rolling roller absorbs water on the surface of the plastic film, a vacuum pump is controlled by the numerical control unit to vacuumize a vacuum cavity, the water absorption sponge layer is absorbed into the vacuum cavity through absorption holes, the drying of the water absorption sponge layer is guaranteed, and the water absorption and removal efficiency is high;
s2, secondarily dewatering the plastic film through the scrapers of the water scraping plate group, controlling a driving motor by a numerical control unit, driving a lead screw to rotate by the driving motor, driving two rotating rods on the scrapers to move by the lead screw, driving two L-shaped sliding blocks to be far away from or close to each other in a sliding groove by the rotating rods, driving two ends of an arc-shaped scraper to be far away from or close to each other by the L-shaped sliding blocks, and increasing or reducing the width of the scraper for dewatering the plastic film so as to adapt to dewatering of plastic films with different widths;
s3, then, according to the thicknesses of different plastic films, the numerical control unit controls the two driving hydraulic cylinders to drive the two sliding plates to be away from or close to each other in the vertical direction, the sliding plates drive the L-shaped sliding blocks to move in the vertical direction, the L-shaped sliding blocks drive the two scraping plates to be away from or close to each other, so that pressure is applied to the plastic films, the proper pressure of the scraping plates for removing water from the plastic films is achieved, meanwhile, the plastic films generate the same pressure on the scraping plates, when the pressure of the scraping plates is overlarge, the scraping plates extrude the L-shaped sliding blocks through the pressure sensors on the rotating plates, the pressure sensors transmit signals to the numerical control unit, and the numerical control unit controls the driving hydraulic cylinders to adjust the distance between the two scraping plates, so that the plastic films can be prevented from being damaged due to overlarge pressure of the scraping plates on the plastic films;
and S4, drying and dewatering the plastic film through a drying unit, controlling the fan to transmit air to the drying plate through the air pipe by the aid of the numerical control unit, heating the air by the aid of the heating unit between the air and the drying plate, blowing the heated air to the plastic film through the blowing holes of the drying plate, and blowing and drying the plastic film.
The technical scheme has the following advantages or beneficial effects:
the invention provides a plastic film dewatering device, which comprises a guide roller set, a wiper blade set and a drying unit which are sequentially passed through by a plastic film, wherein the guide roller set, the wiper blade set and the drying unit are respectively and fixedly connected to a rack and are electrically connected with a numerical control unit; the water absorbing sponge layer coated on the surface of the guide roller group and the surface of the guide roller group compress the plastic film, so that the water of the plastic film can be absorbed, the plastic film is subjected to primary water removal, the vacuum pump is controlled by the numerical control unit to extract vacuum from the vacuum cavity, and the water of the water absorbing sponge layer is absorbed into the vacuum cavity through the absorption holes, so that the water absorbing sponge layer can be kept dry, the water absorbing sponge layer can be reused, and the water absorbing sponge layer does not need to be frequently replaced; the plastic films are subjected to secondary dewatering through the wiper plate group, the width adjusting unit is controlled through the numerical control unit, and the width of the wiper plate group is adjusted, so that the plastic films with different widths can be effectively dewatered, and the device is wide in application range, high in practicability and good in dewatering effect; by arranging the drying unit, after the plastic film is subjected to secondary dehydration, the plastic film is dried, so that the plastic film is more fully dried; the invention also provides a method of the plastic film dewatering device, firstly, the plastic film is guided by the rolling rollers of the guide roller group, so that the plastic films with different thicknesses can be compressed and guided, the plastic film is smoother, the numerical control unit controls the vacuum pump to vacuumize the vacuum cavity, and the water of the water absorption sponge layer is absorbed into the vacuum cavity through the absorption holes; secondly, the plastic film carries out secondary dehydration through the scraper of the wiper plate group, so that the width of the plastic film dehydration by the scraper can be increased or reduced; then, according to the thickness of different plastic films, applying pressure to the plastic films to achieve proper pressure of the scraper blade for removing water from the plastic films, and preventing the plastic films from being damaged due to overlarge pressure of the scraper blade on the plastic films; and finally, drying and dewatering the plastic film through a drying unit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a pinch roller assembly according to an embodiment of the present invention;
FIG. 3 is an elevation view of a pinch roller assembly of an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a return spring lever according to an embodiment of the present invention;
FIG. 5 is an exploded view of a rolling roller and a water absorbing sponge layer according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a wiper blade assembly according to an embodiment of the present invention;
FIG. 7 is an enlarged view taken at A in FIG. 6;
FIG. 8 is an exploded view of a slide, width adjustment unit and screed according to an embodiment of the present invention;
FIG. 9 is an exploded view of a sled and scraper blade according to an embodiment of the invention;
fig. 10 is a schematic structural diagram of a dryer group according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another angle according to an embodiment of the present invention.
In the figure:
1. a plastic film; 2. a frame; 3. a numerical control unit; 4. a vacuum pump; 5. an adsorption hole; 6. a water-absorbing sponge layer; 7. a rolling roller; 8. a connecting rod; 9. a vertical plate; 10. a fixing plate; 11. a driving cylinder; 12. a telescopic rod; 13. a loop bar; 14. a return spring; 15. an air exhaust pipe; 16. a drain pipe; 17. a water tank; 18. a squeegee; 19. driving the hydraulic cylinder; 20. a pressure sensor; 22. a rotating plate; 23. an L-shaped slider; 24. a slide plate; 25. a lead screw; 26. a drive motor; 27. a chute; 28. mounting a plate; 29. a connecting plate; 30. fixing the bolt; 31. a fan; 32. an air duct; 33. drying the plate; 34. an air blowing hole; 35. a heating unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Referring to the attached drawings 1-11, the plastic film dewatering device comprises a guide roller set, a wiper blade set and a drying unit, wherein the plastic film 1 sequentially passes through the guide roller set, the wiper blade set is used for guiding and pressing the plastic film 1, the wiper blade set is used for extruding and wiping water on the surface of the plastic film 1, the drying unit is used for drying the plastic film 1, the guide roller set, the wiper blade set and the drying unit are respectively fixedly connected to a frame 2 and electrically connected with a numerical control unit 3, a vacuum cavity is arranged in the guide roller set, the vacuum cavity is communicated with a vacuum pump 4, the vacuum pump 4 is electrically connected with the numerical control unit 3, a plurality of adsorption holes 5 penetrate through the surface of the guide roller set, which is in surface contact with the plastic film 1, the adsorption holes 5 are communicated with the vacuum cavity, a water-absorbing sponge layer 6 wraps the surface of the guide roller set, and a width adjusting unit is arranged on the wiper blade set, the upper surface and the lower surface of the conveyed plastic film 1 are pressed and guided by the numerical control unit 3, so that the conveyed plastic film 1 is more flat, the conveyed plastic film 1 can be suitable for pressing and guiding the plastic films 1 with different thicknesses, and the application range is wide; the water absorption sponge layer 6 coated on the surface of the guide roller set and the surface of the guide roller set are used for pressing the surface of the plastic film 1, so that the moisture of the plastic film 1 can be absorbed, the plastic film 1 is subjected to primary dewatering, the vacuum pump 4 is controlled by the numerical control unit 3 to vacuumize the vacuum cavity, and the moisture of the water absorption sponge layer 6 is absorbed into the vacuum cavity through the absorption hole 5, so that the water absorption sponge layer 6 can be kept dry, the water absorption sponge layer 6 can be reused, and the water absorption sponge layer 6 does not need to be frequently replaced; the plastic film 1 is subjected to secondary dewatering through the wiper blade group, the width adjusting unit is controlled through the numerical control unit 3, and the width of the wiper blade group is adjusted, so that the plastic films 1 with different widths can be effectively dewatered, the application range is wide, the practicability is high, and the dewatering effect is good; through setting up drying unit, after plastic film 1 passes through the secondary dewatering, carry out drying process to plastic film 1 again, make the dry more abundant of plastic film 1.
The guide roller group in the embodiment has a specific structure that the guide roller group comprises two pinch roller assemblies, the two pinch roller assemblies are symmetrically arranged about a plastic film 1, one of the pinch roller assemblies is provided with a gap adjusting unit, the gap adjusting unit is electrically connected with a numerical control unit 3, the numerical control unit 3 controls the gap adjusting unit to drive the pinch roller assemblies to move along the vertical direction, the two pinch roller assemblies are respectively in extrusion contact with the upper surface and the lower surface of the plastic film 1, the pinch roller assemblies comprise two rolling rollers 7, the rolling rollers 7 are in contact with the surfaces of the plastic film 1, because the rolling rollers 7 roll on the plastic film 1, the smoothness of the plastic film 1 during conveying is further ensured, two ends of the rolling rollers 7 are respectively and rotatably connected with a connecting rod 8, the other end of the connecting rod 8 is rotatably connected with a vertical plate 9, and an elastic component is arranged between the connecting rod 8 and the vertical plate 9, the elastic component, the vertical plate 9 and the connecting rod 8 form a triangular structure, the two connecting rods 8 on the same side are respectively symmetrically arranged on two sides of the vertical plate 9, the two vertical plates 9 are fixedly connected with a fixing plate 10, the fixing plate 10 is arranged in parallel with a horizontal plane, the fixing plate 10 is arranged on the frame 2, the specific structure of the gap adjusting unit is that the gap adjusting unit comprises a fixing plate 10 which is fixedly connected with the frame 2 and is positioned on the lower side of the plastic film 1, the bottom of the fixing plate 10 on the lower side of the plastic film 1 is fixedly connected with a driving cylinder 11, the driving cylinder 11 is electrically connected with the numerical control unit 3, the driving cylinder 11 is arranged on the frame 2, the specific structure of the elastic component is that the elastic component comprises a reset spring rod, the reset spring rod comprises a telescopic rod 12 and a loop rod 13, the telescopic rod 12 is rotatably connected with the middle part of the connecting rod 8, the telescopic rod 12 is inserted in the loop rod 13, the loop bar 13 is rotatably connected with the vertical plate 9, the reset spring 14 is fixedly connected between the loop bar 13 and the telescopic rod 12, the drive cylinder 11 is controlled by the numerical control unit 3 to adjust the height of the fixing plate 10, so that the adjustment of the gap between the rolling rollers 7 at the upper side and the lower side of the plastic film 1 can be adjusted, and due to the arrangement of the reset spring bar, when the plastic film 1 is subjected to external impact force, the two rolling rollers 7 are mutually far away or close under the action of the reset spring 14, so that the buffer effect is achieved, the plastic film 1 cannot be easily damaged, and the integral shape of the plastic film 1 during conveying is ensured; the inside of roll roller 7 is formed with the vacuum cavity, even spaced apart is equipped with a plurality of adsorption holes 5 on the roll roller 7, the cladding has the sponge layer of absorbing water 6 on the surface of roll roller 7, the one end of roll roller 7 has vacuum pump 4 through exhaust tube 15 intercommunication, vacuum pump 4 fixed connection is on fixed plate 10, the other end intercommunication of roll roller 7 has drain pipe 16, be provided with basin 17 in the frame 2, drain pipe 16 stretches into in the basin 17, roll roller 7 rolls on the surface of plastic film 1, absorb the moisture of plastic film 1 through the sponge layer of absorbing water 6, vacuum pump 4 is to the vacuum cavity extraction vacuum, through adsorption holes 5, absorb the moisture of sponge layer of absorbing water 6 in the vacuum cavity, thereby can make sponge layer of absorbing water 6 keep dry, can reuse sponge layer of absorbing water 6, the sponge layer of absorbing water 6 does not need frequently to change sponge layer of absorbing water 6.
The wiper blade group in the embodiment has a specific structure that the wiper blade group comprises two wiper blades 18, the two wiper blades 18 are arranged in a vertically symmetrical manner about a plastic film 1, the two wiper blades 18 respectively wipe off moisture on the upper surface and the lower surface of the plastic film 1, a driving hydraulic cylinder 19 is arranged on the wiper blade 18, the driving hydraulic cylinder 19 is electrically connected with a numerical control unit 3, the numerical control unit 3 controls the driving hydraulic cylinder 19 to drive the wiper blades 18 to move along the vertical direction, the two wiper blades 18 are controlled to extrude the plastic film 1, the plastic films 1 with different thicknesses can be wiped, a pressure sensor 20 is arranged on the wiper blade 18, the pressure sensor 20 can detect the pressure of the wiper blade 18 on the plastic film 1, the pressure sensor 20 is electrically connected with the numerical control unit 3, when the pressure of the wiper blade 18 is too large, the pressure sensor 20 transmits a signal to the numerical control unit 3, and the numerical control unit 3 controls the driving hydraulic cylinder 19 to adjust the distance between the two wiper blades 18, so that the wiper blade 18 can be prevented from being too large in pressure on the plastic film 1 and damaging the plastic film 1; specifically, the shape of the scraper 18 is arc, and the scraper 18 is made of elastic material, the width adjusting unit has a specific structure that the width adjusting unit includes two parallel rotating plates 22, two rotating plates 22 are respectively disposed at positions close to two ends of the scraper 18, a rotating rod is fixedly connected between the two rotating plates 22, an L-shaped slider 23 is rotatably connected between the two rotating plates 22 through the rotating rod, a pressure sensor 20 is installed between the rotating plate 22 and the L-shaped slider 23 close to the plastic film 1, the two L-shaped sliders 23 are slidably connected to a sliding plate 24, the sliding plate 24 is parallel to a horizontal plane, a lead screw 25 penetrates through the two L-shaped sliders 23 and is in threaded connection with the L-shaped slider 23, internal threads of the two L-shaped sliders 23 are opposite, one end of the lead screw 25 is in transmission connection with a driving motor 26, the driving motor 26 is fixedly connected to the sliding plate 24, the driving motor 26 is electrically connected to the numerical control unit 3, the sliding plate 24 is provided with a sliding groove 27, the two L-shaped sliding blocks 23 are slidably connected in the sliding groove 27, the sliding plate 24 is fixedly connected with an output rod of the driving hydraulic cylinder 19, the sliding plate 24 is fixedly connected with the middle part of the scraper 18, the cylinder body of the driving hydraulic cylinder 19 is fixedly connected on the mounting plate 28, the mounting plate 28 is fixedly connected on the frame 2, the middle part of the scraper 18 and the sliding plate 24 are fixed through the connecting plate 29, one end of the connecting plate 29 is fixedly connected with the sliding plate 24, the other end of the connecting plate 29 is fixedly connected with the middle part of the scraper 18 through the fixing bolt 30, the driving motor 26 is controlled to rotate through the numerical control unit 3, the driving motor 26 drives the lead screw 25 to rotate, the lead screw 25 drives the two L-shaped sliding blocks 23 to be far away from or close to each other, the L-shaped sliding blocks 23 drive the two ends of the scraper 18 made of elastic material to be close to or far away from each other, thereby increasing or reducing the width of the scraper 18 for removing water from the plastic film 1, the device can be suitable for dewatering plastic films 1 with different widths, and dewatering is more thorough without dead angles; according to the thickness of different plastic films 1, the numerical control unit 3 controls the two driving hydraulic cylinders 19 to drive the two sliding plates 24 to be away from or close to each other along the vertical direction, the sliding plates 24 drive the L-shaped sliding blocks 23 to move along the vertical direction, the L-shaped sliding blocks 23 drive the two scraping plates 18 to be away from or close to each other, pressure is applied to the plastic films 1, appropriate pressure for the scraping plates 18 to remove water from the plastic films 1 is achieved, meanwhile, the plastic films 1 generate equal pressure for the scraping plates 18, when the pressure of the scraping plates 18 is overlarge, the scraping plates 18 extrude the L-shaped sliding blocks 23 through the pressure sensors 20 on the rotating plates 22, the pressure sensors 20 transmit signals to the numerical control unit 3, the numerical control unit 3 controls the driving hydraulic cylinders 19 to adjust the distance between the two scraping plates 18, and accordingly, the scraping plates 18 can be prevented from being overlarge in pressure on the plastic films 1 and damaging the plastic films 1.
The concrete structure of drying unit does in this embodiment, drying unit includes fan 31 of fixed connection in frame 2, fan 31 is linked together through tuber pipe 32 and stoving board 33, the cross-section of stoving board 33 is the U type, plastic film 1 is in the stoving board 33 of U type, a plurality of blowholes 34 have been seted up to the one side interval that stoving board 33 is close to plastic film 1, be provided with heating unit 35 on the tuber pipe 32 between fan 31 and the stoving board 33, fan 31 is connected with numerical control unit 3 electricity, plastic film 1 dries the dewatering through drying unit, numerical control unit 3 control fan 31 passes through tuber pipe 32 with air transmission to stoving board 33 on, and heat through heating unit 35 between transmitting to stoving board 33, the gas after the heating blows to plastic film 1 through the blowhole 34 of stoving board 33, blow and dry plastic film 1.
In order to better show the water removal process of the plastic film, the embodiment provides a method of a water removal device for a plastic film, which specifically includes the following steps.
S1, firstly, a plastic film 1 is guided by rolling rollers 7 of a guide roller set, a numerical control unit 3 controls a driving cylinder 11 to enable a fixing plate 10 on the lower side of the plastic film 1 to move along the vertical direction, and a gap between the rolling rollers 7 on the upper side and the lower side of the plastic film 1 is adjusted, so that the plastic films 1 with different thicknesses can be compressed and guided, the plastic film 1 is enabled to be more flat, a water absorption sponge layer 6 on the surface of each rolling roller 7 absorbs moisture on the surface of the plastic film 1, the numerical control unit 3 controls a vacuum pump 4 to vacuumize a vacuum cavity, and the moisture of the water absorption sponge layer 6 is absorbed into the vacuum cavity through an absorption hole 5, so that the water absorption sponge layer 6 is guaranteed to be dry, and the water absorption and removal efficiency is high;
s2, secondly, the plastic film 1 is subjected to secondary water removal through the scraper 18 of the scraper group, the numerical control unit 3 controls the driving motor 26, the driving motor 26 drives the lead screw 25 to rotate, the lead screw 25 drives the two rotating plates 22 on the scraper 18 to move, the rotating plates 22 drive the two L-shaped sliders 23 to be far away from or close to each other in the sliding groove 27, the L-shaped sliders 23 drive the two ends of the arc-shaped scraper 18 to be far away from or close to each other, the water removal width of the plastic film 1 by the scraper 18 can be increased or reduced, and therefore the water removal of the plastic films 1 with different widths can be adapted;
s3, then, according to the thicknesses of different plastic films 1, the numerical control unit 3 controls the two driving hydraulic cylinders 19 to drive the two sliding plates 24 to be far away from or close to each other along the vertical direction, the sliding plates 24 drive the L-shaped sliding blocks 23 to move along the vertical direction, the L-shaped sliding blocks 23 drive the two scraping plates 18 to be far away from or close to each other, so that pressure is applied to the plastic films 1, the proper pressure for the scraping plates 18 to remove water from the plastic films 1 is achieved, meanwhile, the plastic films 1 generate the same pressure for the scraping plates 18, when the pressure of the scraping plates 18 is too large, the scraping plates 18 extrude the L-shaped sliding blocks 23 through the pressure sensors 20 on the rotating plates 22, the pressure sensors 20 transmit signals to the numerical control unit 3, the numerical control unit 3 controls the driving hydraulic cylinders 19 to adjust the distance between the two scraping plates 18, and accordingly, the situation that the scraping plates 18 can prevent the plastic films 1 from being too large in pressure and damaging the plastic films 1 can be prevented;
and S4, finally, drying and dewatering the plastic film 1 through a drying unit, controlling the fan 31 to transmit air to the drying plate 33 through the air pipe 32 by the numerical control unit 3, heating the air by the heating unit 35 between the air transmitted to the drying plate 33, blowing the heated air onto the plastic film 1 through the air blowing holes 34 of the drying plate 33, and blowing and drying the plastic film 1.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A plastic film dewatering device is characterized by comprising a guide roller set, a wiper blade set and a drying unit, wherein the guide roller set is used for guiding and pressing a plastic film, the wiper blade set is used for extruding and wiping water on the surface of the plastic film, and the drying unit is used for drying the surface of the plastic film, the guide roller set, the wiper blade set and the drying unit are sequentially connected with a rack and are respectively and electrically connected with a numerical control unit; the guide roller set comprises two compression roller assemblies symmetrically arranged about a plastic film, one of the two compression roller assemblies is provided with a gap adjusting unit which is used for driving the compression roller assemblies to move vertically and is electrically connected with a numerical control unit, the two compression roller assemblies are in extrusion contact with the upper surface and the lower surface of the plastic film respectively, the compression roller assemblies comprise two rolling rollers in surface contact with the plastic film, two ends of the rolling rollers are rotatably connected with connecting rods respectively, the other ends of the connecting rods are rotatably connected with vertical plates, elastic parts are arranged between the connecting rods and the vertical plates, the elastic parts, the vertical plates and the connecting rods form a triangular structure, the two connecting rods with the same side are respectively in bilateral symmetry arrangement of the vertical plates, the vertical plates are fixedly connected with fixing plates parallel to the horizontal plane, and the fixing plates are installed on the machine frame.
2. The plastic film dewatering device according to claim 1, wherein the gap adjusting unit comprises a fixing plate fixedly connected with the frame and located on the lower side of the plastic film, a driving cylinder electrically connected with the numerical control unit is fixedly connected to the bottom of the fixing plate on the lower side of the plastic film, and the driving cylinder is mounted on the frame.
3. The plastic film dewatering device of claim 2, wherein the elastic member comprises a return spring rod, the return spring rod comprises a telescopic rod rotatably connected to a middle portion of the connecting rod, the telescopic rod is inserted into the loop rod, the loop rod is rotatably connected to the vertical plate, and a return spring is fixedly connected between the loop rod and the telescopic rod.
4. The plastic film dewatering device according to claim 3, wherein the vacuum chamber is formed inside the rolling roller, the adsorption holes are formed in the rolling roller at intervals, the outer surface of the rolling roller is coated with the water-absorbing sponge layer, one end of the rolling roller is communicated with the vacuum pump fixedly connected with the fixing plate through an exhaust pipe, the other end of the rolling roller is communicated with a drain pipe, and the drain pipe extends into a water tank arranged on the rack.
5. The plastic film dewatering device according to claim 4, wherein the wiper plate group comprises two scrapers symmetrically arranged about the plastic film, the two scrapers respectively scrape off moisture on the upper and lower surfaces of the plastic film, a driving hydraulic cylinder fixedly connected with the frame and used for driving the scrapers to move vertically is arranged on the scrapers, the driving hydraulic cylinder is electrically connected with the numerical control unit, a pressure sensor used for detecting the pressure of the scrapers on the plastic film is arranged on the scrapers, and the pressure sensor is electrically connected with the numerical control unit.
6. The plastic film dewatering device of claim 5, wherein the scraper is arc-shaped, and the scraper is made of elastic material, the width adjusting unit comprises two parallel rotating plates fixedly connected at positions close to two ends of the scraper respectively, a rotating rod is fixedly connected between the two rotating plates, two L-shaped sliders are rotatably connected between the two rotating plates through the rotating rod, the L-shaped sliders are mounted between the two L-shaped sliders and close to the plastic film, the pressure sensor is mounted between the two L-shaped sliders and slidably connected to the sliding plate parallel to the horizontal plane, a lead screw penetrates through the two L-shaped sliders and is in threaded connection with the L-shaped sliders, one end of the lead screw is in transmission connection with the driving motor, the driving motor is fixedly connected to the sliding plate and is electrically connected with the numerical control unit, the two L-shaped sliders are slidably connected to the sliding groove formed in the sliding plate, the sliding plate is fixedly connected with the output rod of the driving hydraulic cylinder, the sliding plate is fixedly connected with the middle portion of the scraper, the cylinder body of the driving hydraulic cylinder is fixedly connected to the mounting plate, and the mounting plate is fixedly connected to the rack.
7. The plastic film dewatering device according to claim 6, wherein the middle part of the scraper is fixed to the sliding plate through a connecting plate, one end of the connecting plate is fixedly connected to the sliding plate, and the other end of the connecting plate is fixedly connected to the middle part of the scraper through a fixing bolt.
8. The plastic film dewatering device according to claim 7, wherein the dryer group comprises a fan fixedly connected to the frame, the fan is communicated with the drying plate through an air pipe, the section of the drying plate is U-shaped, the plastic film is arranged in the U-shaped drying plate, a plurality of air blowing holes are formed in the side, close to the plastic film, of the drying plate at intervals, a heating unit is arranged on the air pipe between the fan and the drying plate, and the fan is electrically connected with the numerical control unit.
9. A method of water removal apparatus for plastic films as defined in claim 8 wherein: the method specifically comprises the following steps:
s1, firstly, a plastic film is guided through rolling rollers of a guide roller group, a numerical control unit controls a driving cylinder to enable a fixing plate on the lower side of the plastic film to vertically move, and a gap between the rolling rollers on the upper side and the lower side of the plastic film is adjusted, so that the plastic films with different thicknesses can be compressed and guided, the plastic films are more flat, a water absorption sponge layer on the surface of each rolling roller absorbs water on the surface of the plastic film, a vacuum pump is controlled by the numerical control unit to vacuumize a vacuum cavity, the water absorption sponge layer is absorbed into the vacuum cavity through absorption holes, the drying of the water absorption sponge layer is guaranteed, and the water absorption and removal efficiency is high;
s2, secondarily dewatering the plastic film through the scrapers of the water scraping plate group, controlling a driving motor by a numerical control unit, driving a lead screw to rotate by the driving motor, driving two rotating rods on the scrapers to move by the lead screw, driving two L-shaped sliding blocks to be far away from or close to each other in a sliding groove by the rotating rods, driving two ends of an arc-shaped scraper to be far away from or close to each other by the L-shaped sliding blocks, and increasing or reducing the width of the scraper for dewatering the plastic film so as to adapt to dewatering of plastic films with different widths;
s3, according to the thicknesses of different plastic films, the numerical control unit controls the two driving hydraulic cylinders to drive the two sliding plates to be away from or close to each other in the vertical direction, the sliding plates drive the L-shaped sliding blocks to move in the vertical direction, the L-shaped sliding blocks drive the two scraping plates to be away from or close to each other, so that pressure is applied to the plastic films to achieve proper pressure of the scraping plates on the dehydration of the plastic films, meanwhile, the plastic films generate equal pressure on the scraping plates, when the pressure of the scraping plates is overlarge, the scraping plates extrude the L-shaped sliding blocks through the pressure sensors on the rotating plates, the pressure sensors transmit signals to the numerical control unit, and the numerical control unit controls the driving hydraulic cylinders to adjust the distance between the two scraping plates, so that the situation that the scraping plates can prevent the plastic films from being overlarge in pressure on the plastic films and damaging the plastic films can be avoided;
and S4, drying and dewatering the plastic film through a drying unit, controlling a fan to transmit air to the drying plate through an air pipe by the aid of the numerical control unit, heating the air by the aid of the heating unit between the air pipe and the drying plate, blowing the heated air to the plastic film through the blowing holes of the drying plate, and blowing and drying the plastic film.
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Effective date of registration: 20240416 Address after: 315000 Gaoqian Village, Dongqian Lake Tourist Resort, Ningbo City, Zhejiang Province Patentee after: Ningbo Zhongrun Plastic Co.,Ltd. Country or region after: China Address before: 510000 room 10, Room 201, 424 Gangwan Road, Huangpu District, Guangzhou, Guangdong Province (office only) Patentee before: Guangzhou Zhongchuang Construction Technology Co.,Ltd. Country or region before: China |