CN114872293A - EVA plastic film extruder - Google Patents
EVA plastic film extruder Download PDFInfo
- Publication number
- CN114872293A CN114872293A CN202210575619.XA CN202210575619A CN114872293A CN 114872293 A CN114872293 A CN 114872293A CN 202210575619 A CN202210575619 A CN 202210575619A CN 114872293 A CN114872293 A CN 114872293A
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- hydraulic
- roller
- plastic film
- air
- extrusion
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- 229920006255 plastic film Polymers 0.000 title claims abstract description 68
- 239000002985 plastic film Substances 0.000 title claims abstract description 67
- 238000004804 winding Methods 0.000 claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 238000001125 extrusion Methods 0.000 claims abstract description 58
- 239000004033 plastic Substances 0.000 claims abstract description 38
- 229920003023 plastic Polymers 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 abstract description 11
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/28—Storing of extruded material, e.g. by winding up or stacking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/355—Conveyors for extruded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/02—Supporting web roll
- B65H18/028—Both ends type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/10—Mechanisms in which power is applied to web-roll spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the field of plastic film extruders, in particular to an EVA plastic film extruder which comprises a plastic extrusion main machine, a mounting frame, an air cooling mechanism, an extrusion forming mechanism and a winding mechanism, wherein the mounting frame is arranged on the plastic extrusion main machine; the two sides of the flaky film extruded from the plastic extrusion main machine can be preliminarily shaped by air cooling through the air cooling mechanism, so that the edge of the film is prevented from cracking due to gravity or other external factors, and the quality of a plastic film finished product formed by subsequent extrusion molding can be improved; the extruded sheet-shaped film is extruded and air-cooled and shaped to be made into the plastic film through the matching of the air cooling mechanism and the extrusion forming mechanism, and the plastic film with different thicknesses can be prepared by adjusting the size of an extrusion gap, so that the applicability of the equipment is improved; the drive ratio of winding mechanism is adjusted in the accessible gravity drive, reduces winding mechanism's rotation angular velocity to when winding mechanism weight, diameter crescent, keep the linear velocity unchangeable, thereby can not excessive tensile fracture when making the plastic film rolling.
Description
Technical Field
The invention relates to the field of plastic film extruders, in particular to an EVA plastic film extruder.
Background
In the plastic extrusion molding equipment, the plastic extruder is generally called a main machine, and the subsequent equipment matched with the plastic extruder is called an auxiliary machine, and the plastic extruder (main machine) can be matched with various plastic molding auxiliary machines such as pipes, films, rods, monofilaments, flat wires, packing belts, extrusion nets, plates (sheets), profiles, pelleting, cable coating and the like to form various plastic extrusion molding production lines to produce various plastic products.
At present, in the production process of an EVA plastic film, molten plastic is extruded into sheets by a discharge port of a plastic extrusion main machine, and then the sheets are further extruded and formed by a compression roller, however, the temperature of the just extruded sheet film is higher, the sheet film is still in a molten state and is not completely solidified, the edge of the film is easy to crack due to gravity or other external factors, and the quality of a finished product is influenced; on the other hand, the extrusion rate of the plastic extrusion host machine is fixed unchangeable all the time, and the extrusion rate is too fast and can lead to plastic film can't take shape, but outside rolling drum rotation angular velocity is unchangeable, nevertheless because plastic film constantly winds up, and drum diameter grow can lead to the linear velocity grow, makes plastic film can excessive tensile fracture, and present rolling drum installation dismantlement is complicated, and inconvenient film book that will convolute is dismantled.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an EVA plastic film extruder.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a EVA plastic film extruder, includes that plastics extrude host computer, mounting bracket, forced air cooling mechanism, extrusion mechanism, winding mechanism, the discharge gate that is used for the ejection of compact is installed to the bottom surface that plastics extruded host computer one end, is used for carrying out the refrigerated to the ejection of compact forced air cooling mechanism install in the below of discharge gate, be used for the installation extrusion mechanism with winding mechanism the mounting bracket install in the one end of plastics extruded host computer, and be used for with ejection of compact extrusion mechanism install in the both sides of discharge gate below for carry out the rolling to extrusion's plastic film winding mechanism install in the end of mounting bracket.
Further, the air cooling mechanism comprises two connecting plates, a sliding rod, two sliding blocks, two first air nozzles, a first air pipe, a second air pipe and a plurality of second air nozzles, the two connecting plates are fixedly installed at two ends of the discharge port respectively, the sliding rod is fixedly installed between the two connecting plates, the two sliding blocks are slidably installed at two ends of the sliding rod respectively, and the two first air nozzles are fixedly installed on the two sliding blocks respectively; first tuber pipe with second tuber pipe fixed mounting in the mounting bracket, just first tuber pipe with the second tuber pipe all is located the below of extrusion mechanism, it is a plurality of second air cock evenly distributed connect in first tuber pipe with on the second tuber pipe.
Further, extrusion mechanism includes first compression roller, second compression roller, two spouts, first motor, two mount pads, two second motors, two lead screws, two slides, first compression roller with the equal movable mounting of second compression roller in on the mount pad, just the both ends of first compression roller are through two the spout extends to the outside of mount pad, two mount pad fixed mounting is respectively in two the below of spout, just all install on the mount pad the second motor the lead screw the slide, wherein, the second motor with screw drive connects, the slide with lead screw threaded connection, two the slide respectively with the one end swing joint of first compression roller, and one of them install on the slide with first compression roller drive connects first motor.
Further, extrusion mechanism still includes first tensioning roller, second tensioning roller, first tensioning roller movable mounting in the below of first compression roller, second tensioning roller movable mounting in first compression roller with between the winding mechanism.
Further, winding mechanism includes rolling unit, two regulating unit, third motor, rolling unit movable mounting in the upper portion of mounting bracket, two regulating unit with other fixed mounting in the outside of mounting bracket both sides, and respectively with the both ends transmission of rolling unit is connected, third motor fixed mounting in one of them on the regulating unit, and with the regulating unit transmission is connected.
Furthermore, the winding unit comprises two mounting grooves, a roller, two roller shafts, two couplers, a winding drum, an air valve, an air bag, a plurality of openings and a plurality of fixing blocks, the two mounting grooves are respectively arranged on two sides of the mounting frame, the roller shafts are respectively arranged at two ends of the roller, the couplers are respectively arranged on the two roller shafts, and the two couplers respectively penetrate through the two mounting grooves and are connected with the adjusting unit through the couplers; the roller is movably sleeved on the surface of the roller, the air bag is arranged inside the roller, a plurality of openings are formed in the roller, a plurality of fixing blocks are fixedly arranged on the surface of the air bag and extend to the outside of the roller one by one through the plurality of openings, and the air valve is fixedly arranged on the roller and communicated with the air bag.
Furthermore, the adjusting unit comprises a shell, a driving gear, a driving shaft, a connecting sleeve, a first hydraulic shaft, a toothed belt, a first hydraulic sleeve, a hydraulic driven assembly and a driven shaft, the shell is fixedly arranged on the mounting rack, the driving gear is movably arranged in the shell through the driving shaft and is in transmission connection with the third motor, the driving shaft is movably sleeved with a connecting sleeve, the outer side of the connecting sleeve is fixedly provided with the first hydraulic shaft, the other end of the first hydraulic shaft is connected with the first hydraulic sleeve which is hydraulically communicated with the first hydraulic shaft, the first hydraulic sleeve is movably sleeved on the driven shaft, one end of the driven shaft is in transmission connection with the winding unit, the hydraulic driven assembly is installed on the driven shaft, and the hydraulic driven assembly is in transmission connection with the driving gear through the toothed belt.
Furthermore, the hydraulic driven component comprises a rotary joint, a second hydraulic sleeve, a plurality of second hydraulic shafts and a plurality of driven gears, the second hydraulic sleeve is fixedly installed on the driven shaft and is distributed on the outer ring of the second hydraulic sleeve uniformly, the second hydraulic shafts are communicated with the second hydraulic sleeve in a hydraulic mode, the rotary joint is movably installed on the driven shaft, and the rotary joint is rotatably installed between the second hydraulic sleeve and the first hydraulic sleeve.
The invention has the beneficial effects that:
(1) according to the EVA plastic film extruder disclosed by the invention, the two sides of the sheet-shaped film extruded from the plastic extrusion main machine can be subjected to primary air cooling shaping through the air cooling mechanism, so that the edge of the film is prevented from cracking due to gravity or other external factors, and the quality of a plastic film finished product formed by subsequent extrusion forming can be improved.
(2) According to the EVA plastic film extruder disclosed by the invention, the air cooling mechanism is matched with the extrusion forming mechanism, the extruded flaky film is extruded and subjected to air cooling shaping to prepare the plastic film, and the size of an extrusion gap can be adjusted to prepare plastic films with different thicknesses, so that the applicability of equipment is improved.
(3) According to the EVA plastic film extruder disclosed by the invention, the prepared plastic film is rolled through the arranged rolling mechanism, and the rolling unit in the rolling mechanism is arranged in a detachable structure, so that the rolled plastic film roll is convenient to take down; meanwhile, the winding unit is connected with the motor in a transmission mode through the adjusting unit, the winding unit is increased in weight along with continuous winding and winding of the plastic film, so that the transmission ratio can be adjusted through the gravity driving adjusting unit, the rotation angular velocity of the winding unit is reduced, the linear velocity is kept unchanged when the weight and the diameter of the winding unit are gradually increased, and accordingly the plastic film cannot be excessively stretched and broken when being wound.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of an overall structure of a preferred embodiment of an EVA plastic film extruder provided by the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B of FIG. 1;
FIG. 4 is a cross-sectional view of the disk between the two mounts shown in FIG. 1;
FIG. 5 is a schematic structural view of the winding unit shown in FIG. 1;
FIG. 6 is a cross-sectional view taken in the direction N-N of FIG. 5;
FIG. 7 is a schematic view of the structure of the regulating unit shown in FIG. 1;
FIG. 8 is a schematic structural view of the hydraulic slave assembly of FIG. 7;
in the figure: 1. a plastic extrusion main machine; 11. a discharge port; 2. a mounting frame; 3. an air cooling mechanism; 31. a connecting plate; 32. a slide bar; 33. a slider; 34. a first air tap; 35. a first air duct; 36. a second air duct; 37. a second air tap; 4. an extrusion molding mechanism; 41. a first press roll; 42. a second press roll; 43. a first tension roller; 44. a second tension roller; 45. a chute; 46. a first motor; 47. a mounting seat; 48. a second motor; 49. a screw rod; 4a, a sliding plate; 5. a winding mechanism; 51. a winding unit; 511. mounting grooves; 512. a roller; 513. a roll shaft; 514. a coupling; 515. a reel; 516. an air valve; 517. an air bag; 518. an opening; 519. a fixed block; 52. an adjustment unit; 521. a housing; 522. a driving gear; 523. a drive shaft; 524. connecting sleeves; 525. a first hydraulic shaft; 526. a toothed belt; 527. a first hydraulic jacket; 528. a hydraulic driven assembly; 5281. a rotary joint; 5282. a second hydraulic jacket; 5283. a second hydraulic shaft; 5284. a driven gear; 529. a driven shaft; 53. a third motor.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-8, the EVA plastic film extruder of the present invention includes a plastic extrusion main machine 1, a mounting frame 2, an air cooling mechanism 3, an extrusion molding mechanism 4, and a winding mechanism 5, wherein a discharge port 11 for discharging is installed on a bottom surface of one end of the plastic extrusion main machine 1, the air cooling mechanism 3 for cooling discharged materials is installed below the discharge port 11, the mounting frame 2 for installing the extrusion molding mechanism 4 and the winding mechanism 5 is installed at one end of the plastic extrusion main machine 1, the extrusion molding mechanism 4 for discharging and extrusion molding is installed on two sides below the discharge port 11, and the winding mechanism 5 for winding extruded plastic films is installed at a tail end of the mounting frame 2; the air cooling mechanism 3 can carry out primary air cooling shaping on two sides of the sheet-shaped film extruded from the plastic extrusion main machine 1, so that the edge of the film is prevented from cracking due to factors such as gravity and the like, and the quality of a plastic film finished product formed by subsequent extrusion forming can be improved; through forced air cooling mechanism 3 with extrusion mechanism 4 cooperation, the flaky film extrusion that will extrude and forced air cooling design make plastic film, and the accessible adjusts the size of extrusion gap for prepare the plastic film of different thickness, improved the suitability of equipment.
The air cooling mechanism 3 comprises two connecting plates 31, a sliding rod 32, two sliding blocks 33, two first air nozzles 34, a first air pipe 35, a second air pipe 36 and a plurality of second air nozzles 37, the two connecting plates 31 are respectively and fixedly installed at two ends of the discharge hole 11, the sliding rod 32 is fixedly installed between the two connecting plates 31, the two sliding blocks 33 are respectively and slidably installed at two ends of the sliding rod 32, and the two first air nozzles 34 are respectively and fixedly installed on the two sliding blocks 33; the first air duct 35 and the second air duct 36 are fixedly mounted in the mounting rack 2, the first air duct 35 and the second air duct 36 are both located below the extrusion forming mechanism 4, and the plurality of second air nozzles 37 are uniformly distributed and connected to the first air duct 35 and the second air duct 36; wherein, first air cock 34 first tuber pipe 35 second tuber pipe 36 all communicates with outside air supply, and is as passing through discharge gate 11 will when the interior molten plastics of plastics extrusion host computer 1 are extruded, two first air cock 34 is bloied to the both sides of the sheet plastics of extruding respectively and is carried out preliminary forced air cooling and stereotypes, prevents that the sheet plastics border from producing the fracture because of factors such as gravity, later first tuber pipe 35 with second tuber pipe 36 passes through second air cock 37 is bloied to the both sides of sheet plastics, and the cooperation extrusion mechanism 4 is stereotyped the extrusion of sheet plastics into plastic film.
The extrusion forming mechanism 4 comprises a first press roller 41, a second press roller 42, two chutes 45, a first motor 46, two mounting seats 47, two second motors 48, two screw rods 49 and two sliding plates 4a, the first pressing roller 41 and the second pressing roller 42 are movably mounted on the mounting frame 2, and both ends of the first pressing roller 41 extend to the outside of the mounting frame 2 through the two sliding grooves 45, the two mounting seats 47 are respectively and fixedly mounted below the two sliding grooves 45, and the second motor 48, the screw rod 49 and the sliding plate 4a are all arranged on the mounting seat 47, wherein, the second motor 48 is in transmission connection with the screw rod 49, the sliding plates 4a are in threaded connection with the screw rod 49, the two sliding plates 4a are respectively movably connected with one end of the first pressing roller 41, and one of the sliding plates 4a is provided with the first motor 46 in transmission connection with the first press roller 41; when sheet-shaped plastic is extruded and shaped, firstly, according to the thickness of a plastic film to be manufactured, the second motor 48 drives the screw rod 49 to rotate, so that the sliding plate 4a is driven to move on the mounting seat 47 through screw rod transmission, the position of the first press roller 41 is adjusted and moved, a gap between the first press roller 41 and the second press roller 42 meets the requirement of extrusion forming of the plastic film, and then the first motor 46 is started to drive the first press roller 41 to rotate, so that the sheet-shaped plastic passing through the gap is extruded into the plastic film by matching with the second press roller 42.
Extrusion mechanism 4 still includes first tensioning roller 43, second tensioning roller 44, first tensioning roller 43 movable mounting in first compression roller 41's below, second tensioning roller 44 movable mounting in first compression roller 41 with between the winding mechanism 5, the plastic film after the extrusion can pass through in proper order first tensioning roller 43 with second tensioning roller 44 carries out the tensioning and carries, again by winding mechanism 5 carries out the rolling, can prevent that plastic film from producing the crease when the rolling, carries the transport distance that can improve finished product plastic film through the tensioning simultaneously, makes it have sufficient time and carries out natural cooling, and the plastic film of being convenient for cools off to normal atmospheric temperature state.
The winding mechanism 5 comprises a winding unit 51, two adjusting units 52 and a third motor 53, the winding unit 51 is movably mounted on the upper part of the mounting frame 2, the two adjusting units 52 are respectively and fixedly mounted on the outer parts of the two sides of the mounting frame 2 and are respectively in transmission connection with the two ends of the winding unit 51, and the third motor 53 is fixedly mounted on one of the adjusting units 52 and is in transmission connection with the adjusting unit 52; the winding unit 51 is in transmission connection with the third motor 53 through the adjusting unit 52, and along with continuous winding and winding of the plastic film, the weight of the winding unit 51 is increased, so that the adjusting unit 52 can be driven by gravity to adjust the transmission ratio, the rotation angular speed of the winding unit 51 is reduced, and when the weight and the diameter of the winding unit 51 are gradually increased, the linear speed is kept unchanged, so that the winding speed is unchanged, and the plastic film cannot be excessively stretched and broken during winding.
The adjusting unit 52 comprises a housing 521, a driving gear 522, a driving shaft 523, a connecting sleeve 524, a first hydraulic shaft 525, a toothed belt 526, a first hydraulic sleeve 527, a hydraulic driven assembly 528, a driven shaft 529, the housing 521 is fixedly mounted on the mounting bracket 2, the driving gear 522 is movably mounted in the housing 521 through the driving shaft 523 and is in transmission connection with the third motor 53, a connecting sleeve 524 is movably sleeved on the driving shaft 523, the first hydraulic shaft 525 is fixedly installed on the outer side of the connecting sleeve 524, the other end of the first hydraulic shaft 525 is connected with the first hydraulic sleeve 527 in hydraulic communication therewith, the first hydraulic sleeve 527 is movably sleeved on the driven shaft 529, one end of the driven shaft 529 is in transmission connection with the winding unit 51, the hydraulic driven assembly 528 is installed on the driven shaft 529, the hydraulic driven assembly 528 is in transmission connection with the driving gear 522 through the toothed belt 526; the hydraulic driven assembly 528 comprises a rotary joint 5281, a second hydraulic sleeve 5282, a plurality of second hydraulic shafts 5283 and a plurality of driven gears 5284, the second hydraulic sleeve 5282 is fixedly mounted on the driven shaft 529, the plurality of second hydraulic shafts 5283 are uniformly distributed and mounted on the outer ring of the second hydraulic sleeve 5282, the plurality of second hydraulic shafts 5283 are in hydraulic communication with the second hydraulic sleeve 5282, the rotary joint 5281 is movably mounted on the driven shaft 529, and the rotary joint 5281 is rotatably mounted between the second hydraulic sleeve 5282 and the first hydraulic sleeve 527; when winding, the third motor 53 drives the driving gear 522 and the driving shaft 523 to rotate, the driving gear 522 drives the hydraulic driven assembly 528 and the driven shaft 529 to rotate through the toothed belt 526, so as to drive the winding unit 51 to rotate and wind through the driven shaft 529, as the plastic film on the winding unit 51 is wound, the weight and the diameter of the winding unit 51 are gradually increased, at this time, the first hydraulic shaft 525 bears the increase of gravity and gradually shrinks, as the first hydraulic shaft 525 shrinks, the internal hydraulic cavity thereof is reduced, hydraulic oil is gradually conveyed into the plurality of second hydraulic shafts 5283 through the first hydraulic sleeve 527, the rotating joint 5281 and the second hydraulic sleeve 5282, so that the second hydraulic shaft 5283 is extended, the diameter of the hydraulic driven assembly 528 is increased, and the transmission ratio between the driving gear 522 and the hydraulic driven assembly 528 is reduced, the effect of reducing the angular velocity is achieved, the rotation angular velocity of the winding unit 51 is reduced, so that when the weight and the diameter of the winding unit 51 are gradually increased, the angular velocity is reduced, the linear velocity is kept unchanged, the winding speed is unchanged, and the plastic film cannot be excessively stretched and broken when being wound.
The winding unit 51 comprises two mounting grooves 511, two rollers 512, two roller shafts 513, two couplers 514, a winding drum 515, an air valve 516, an air bag 517, a plurality of openings 518 and a plurality of fixing blocks 519, the two mounting grooves 511 are respectively arranged on two sides of the mounting frame 2, the roller shafts 513 are respectively arranged at two ends of the roller 512, the couplers 514 are respectively arranged on the two roller shafts 513, and the two couplers 514 respectively penetrate through the two mounting grooves 511 and are connected with the adjusting unit 52 through the couplers 514; the air bag 517 is installed inside the roller 512, a plurality of openings 518 are formed in the roller 512, a plurality of fixing blocks 519 are fixedly installed on the surface of the air bag 517 and extend to the outside of the roller 512 one by one through the plurality of openings 518, the air valve 516 is fixedly installed on the roller 512 and is communicated with the air bag 517, and the winding drum 515 is movably sleeved on the surface of the roller 512 and is fixedly locked through the fixing blocks 519; after the plastic film is completely wound, the coupler 514 is disconnected from the adjusting unit 52, so that the winding unit 51 and the wound plastic film can be integrally taken down, the air bag 517 is deflated through the air valve 516, the air bag 517 contracts, the fixing block 519 on the surface of the air bag retracts and does not abut against and fix the winding drum 515, so that the winding drum 515 and the plastic film can be taken down from the roller 512, a new winding drum 515 can be sleeved on the roller 512, the roller 512 is reset and installed again, the air bag 517 is inflated again through the air valve 516, the air bag 517 expands, the new winding drum 515 is abutted against and fixed again through the fixing block 519 on the surface of the air bag, and then the next winding process can be performed.
The working principle of the invention is as follows:
air cooling and extrusion molding process: when the molten plastic in the plastic extrusion main machine 1 is extruded through the discharge port 11, the two first air nozzles 34 respectively blow air to two sides of the extruded sheet plastic to perform preliminary air cooling setting, so that cracking of the edge of the sheet plastic due to factors such as gravity is prevented, then the sheet plastic enters a space between the first compression roller 41 and the second compression roller 42 along with continuous discharge, the first motor 46 drives the first compression roller 41 to rotate, the sheet plastic passing through the gap is extruded into a plastic film through the second compression roller 42, meanwhile, the first air pipe 35 and the second air pipe 36 blow air to two sides of the plastic film through the second air nozzle 37, the extruded and set plastic film is subjected to air cooling setting through matching, and the prepared plastic film is wound by the winding mechanism 5 after being tensioned and conveyed by the first tensioning roller 43 and the second tensioning roller 44.
And (3) a plastic film winding process: the third motor 53 drives the driving gear 522 and the driving shaft 523 to rotate, the driving gear 522 drives the hydraulic driven assembly 528 and the driven shaft 529 to rotate through the toothed belt 526, so that the driven shaft 529 drives the winding unit 51 to rotate and wind, the weight and the diameter of the winding unit 51 are gradually increased along with the continuous winding and winding of the plastic film on the winding unit 51, at the moment, the gravity borne by the first hydraulic shaft 525 is increased and gradually contracted, the internal hydraulic cavity of the first hydraulic shaft 525 is reduced along with the contraction of the first hydraulic shaft 525, hydraulic oil is gradually conveyed into the second hydraulic shafts 5283 through the first hydraulic sleeve 527, the rotating joint 5281 and the second hydraulic sleeve 5282, so that the second hydraulic shafts 5283 are extended, the diameter of the hydraulic driven assembly 528 is increased, the transmission ratio between the driving gear 522 and the hydraulic driven assembly 528 is reduced, the effect of reducing the angular velocity is achieved, the rotational angular velocity of the winding unit 51 is reduced, and the weight and the driven assembly 528 is driven in the winding unit 51, When the diameter is gradually increased, the linear velocity is kept unchanged by reducing the angular velocity, so that the winding speed is unchanged, and the plastic film cannot be excessively stretched and broken when being wound.
The plastic film roll unloading process: after the plastic film is completely wound, the coupler 514 is disconnected from the driven shaft 529, the winding unit 51 and the wound plastic film are integrally taken down from the mounting rack 2, the air bag 517 is deflated through the air valve 516, the air bag 517 contracts, the fixing block 519 on the surface of the air bag retracts and does not abut against and fix the winding drum 515, the winding drum 515 and the plastic film can be taken down from the roller 512, a new winding drum 515 can be sleeved on the roller 512, the roller 512 is reset and mounted, the air bag 517 is inflated again through the air valve 516, the air bag 517 expands, the newly replaced winding drum 515 is abutted against and fixed again through the fixing block 519 on the surface of the air bag, and the next winding process can be carried out.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The EVA plastic film extruder is characterized in that: extrude host computer (1), mounting bracket (2), air-cooled mechanism (3), extrusion mechanism (4), winding mechanism (5) including plastics, the bottom surface of plastics extrusion host computer (1) one end is installed and is used for discharge gate (11) of the ejection of compact, be used for carrying out the refrigerated to the ejection of compact air-cooled mechanism (3) install in the below of discharge gate (11), be used for the installation extrusion mechanism (4) with winding mechanism (5) mounting bracket (2) install in the one end of plastics extrusion host computer (1), and be used for with ejection of compact extrusion mechanism (4) install in discharge gate (11) below both sides, be used for carrying out the rolling to extrusion's plastic film winding mechanism (5) install in the end of mounting bracket (2).
2. The EVA plastic film extruder of claim 1, wherein: the air cooling mechanism (3) comprises two connecting plates (31), a sliding rod (32), two sliding blocks (33), two first air nozzles (34), a first air pipe (35), a second air pipe (36) and a plurality of second air nozzles (37), the two connecting plates (31) are fixedly arranged at two ends of the discharge hole (11) respectively, the sliding rod (32) is fixedly arranged between the two connecting plates (31), the two sliding blocks (33) are slidably arranged at two ends of the sliding rod (32) respectively, and the two first air nozzles (34) are fixedly arranged on the two sliding blocks (33) respectively; first tuber pipe (35) with second tuber pipe (36) fixed mounting in mounting bracket (2), just first tuber pipe (35) with second tuber pipe (36) all are located the below of extrusion mechanism (4), it is a plurality of second air cock (37) evenly distributed connect in first tuber pipe (35) with on second tuber pipe (36).
3. The EVA plastic film extruder of claim 1, wherein: the extrusion forming mechanism (4) comprises a first pressing roller (41), a second pressing roller (42), two sliding grooves (45), a first motor (46), two mounting seats (47), two second motors (48), two screw rods (49) and two sliding plates (4a), wherein the first pressing roller (41) and the second pressing roller (42) are movably mounted on the mounting frame (2), the two ends of the first pressing roller (41) extend to the outside of the mounting frame (2) through the two sliding grooves (45), the two mounting seats (47) are fixedly mounted below the two sliding grooves (45) respectively, the second motor (48), the screw rods (49) and the sliding plates (4a) are mounted on the mounting seats (47), the second motor (48), the screw rods (49) and the sliding plates (4a) are in transmission connection, the sliding plates (4a) are in threaded connection with the screw rods (49), the two sliding plates (4a) are movably connected with one end of the first pressing roller (41) respectively, and one of the sliding plates (4a) is provided with the first motor (46) in transmission connection with the first pressing roller (41).
4. The EVA plastic film extruder of claim 3, wherein: extrusion forming mechanism (4) still includes first tensioning roller (43), second tensioning roller (44), first tensioning roller (43) movable mounting in the below of first compression roller (41), second tensioning roller (44) movable mounting in first compression roller (41) with between winding mechanism (5).
5. The EVA plastic film extruder of claim 1, wherein: winding mechanism (5) are including rolling unit (51), two regulating unit (52), third motor (53), rolling unit (51) movable mounting in the upper portion of mounting bracket (2), two regulating unit (52) with do not fixed mounting in the outside of mounting bracket (2) both sides, and respectively with the both ends transmission of rolling unit (51) is connected, third motor (53) fixed mounting in one of them on regulating unit (52), and with regulating unit (52) transmission is connected.
6. The EVA plastic film extruder of claim 5, wherein: the winding unit (51) comprises two mounting grooves (511), a roller (512), two roller shafts (513), two couplers (514), a winding drum (515), an air valve (516), an air bag (517), a plurality of openings (518) and a plurality of fixing blocks (519), the two mounting grooves (511) are respectively arranged on two sides of the mounting frame (2), the roller shafts (513) are respectively arranged at two ends of the roller (512), the couplers (514) are respectively arranged on the two roller shafts (513), and the two couplers (514) respectively penetrate through the two mounting grooves (511) and are connected with the adjusting unit (52) through the couplers (514); the roller drum (515) is movably sleeved on the surface of the roller drum (512), the air bag (517) is installed inside the roller drum (512), a plurality of openings (518) are formed in the roller drum (512), a plurality of fixing blocks (519) are fixedly installed on the surface of the air bag (517) and extend to the outside of the roller drum (512) one by one through the plurality of openings (518), and the air valves (516) are fixedly installed on the roller drum (512) and communicated with the air bag (517).
7. The EVA plastic film extruder of claim 5, wherein: the adjusting unit (52) comprises a shell (521), a driving gear (522), a driving shaft (523), a connecting sleeve (524), a first hydraulic shaft (525), a toothed belt (526), a first hydraulic sleeve (527), a hydraulic driven component (528) and a driven shaft (529), wherein the shell (521) is fixedly installed on the installation frame (2), the driving gear (522) is movably installed in the shell (521) through the driving shaft (523) and is in transmission connection with the third motor (53), the connecting sleeve (524) is movably sleeved on the driving shaft (523), the first hydraulic shaft (525) is fixedly installed on the outer side of the connecting sleeve (524), the other end of the first hydraulic shaft (525) is connected with the first hydraulic sleeve (527) which is in hydraulic communication with the first hydraulic shaft, and the first hydraulic sleeve (527) is movably sleeved on the driven shaft (529), one end of the driven shaft (529) is in transmission connection with the winding unit (51), the hydraulic driven assembly (528) is installed on the driven shaft (529), and the hydraulic driven assembly (528) is in transmission connection with the driving gear (522) through the toothed belt (526).
8. The EVA plastic film extruder of claim 7, wherein: the hydraulic driven assembly (528) comprises a rotary joint (5281), a second hydraulic sleeve (5282), a plurality of second hydraulic shafts (5283) and a plurality of driven gears (5284), wherein the second hydraulic sleeve (5282) is fixedly mounted on the driven shaft (529), the second hydraulic shafts (5283) are uniformly distributed and mounted on the outer ring of the second hydraulic sleeve (5282), the second hydraulic shafts (5283) are in hydraulic communication with the second hydraulic sleeve (5282), the rotary joint (5281) is movably mounted on the driven shaft (529), and the rotary joint (5281) is rotatably mounted between the second hydraulic sleeve (5282) and the first hydraulic sleeve (527).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210575619.XA CN114872293A (en) | 2022-05-24 | 2022-05-24 | EVA plastic film extruder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210575619.XA CN114872293A (en) | 2022-05-24 | 2022-05-24 | EVA plastic film extruder |
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| CN114872293A true CN114872293A (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210575619.XA Pending CN114872293A (en) | 2022-05-24 | 2022-05-24 | EVA plastic film extruder |
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Application publication date: 20220809 |