CN112793136B

CN112793136B - PTFE nanometer membrane production facility

Info

Publication number: CN112793136B
Application number: CN202110113259.7A
Authority: CN
Inventors: 曹开斌; 胥平
Original assignee: Shandong Senrong New Materials Co ltd
Current assignee: Shandong Senrong New Materials Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2022-06-24
Anticipated expiration: 2041-01-27
Also published as: CN112793136A

Abstract

The invention relates to PTFE nano-film production equipment, which comprises an expander, an uncoiling mechanism and a coiling mechanism, wherein the uncoiling mechanism and the coiling mechanism are arranged at the feeding and discharging ends of the expander, the expander comprises a rack and an oven, a pair of conveying chains for clamping two sides of a film to convey the film through the oven are arranged on the rack, the return end of each conveying chain is positioned at the outer side of the oven, a plurality of sections of cooling boxes are arranged at the outer side of the return end of each conveying chain, each section of cooling box is connected with a suction pipe, the suction pipe is connected with a cooling fan, a secondary cooling box is arranged at the outer side of the progress end of the conveying chain at the front end of the oven, blowing pipes for blowing air to the conveying chains are arranged at the front side and the rear side of the secondary cooling boxes, and the blowing pipes are connected with blowing fans. According to the invention, the return end of the conveying chain on the expander is arranged outside the oven and is matched with the cooling box arranged at the return end of the conveying chain, so that the temperature of the conveying chain can be reduced through air suction cooling, and the expanding quality of products is improved.

Description

PTFE nanometer membrane production facility

Technical Field

The invention belongs to the technical field of film production, and particularly relates to PTFE nano-film production equipment.

Background

The PTFE membrane prepared by the one-way or two-way stretching method of the PTFE nanomembrane has a spider-web-type microporous structure on the surface, and has very complicated changes such as network communication, pore insert, pore channel bending and the like on a three-dimensional structure, so that the PTFE membrane has an excellent surface filtration function. The nanometer mask produced by utilizing the PTFE nanometer film has the characteristics of high blocking efficiency, long service life and light, thin and breathable performance, and is a new direction for developing masks in the future, the short PTFE nanometer film needs to be stretched in an oven by an expander in the production process of the PTFE nanometer film, so that the PTFE nanometer film is produced, but the chains clamping two ends of the nanometer film enter and exit from the oven by the existing expander, so that the time that the chains are in the oven is longer, and after the time is long, the temperature of the chains can be greatly higher than the temperature required for stretching the film, so that the product is unqualified in production. And the PTFE nanometer membrane at the front end of expander uncoiling mechanism just puts PTFE nanometer membrane book on the uncoiling axle, very time-wasting when changing the membrane book like this, and present expander only sets up the rolling axle in the rolling position in addition, because the film both ends have some shrink, need artifical at both ends expansion at present, not only extravagant manpower, intensity of labour is great in addition.

Disclosure of Invention

The invention aims to provide PTFE nano-film production equipment, which solves the problems that the prior expander chain has overhigh temperature, causes unqualified products, is difficult to replace a film roll by an uncoiling mechanism, needs manual uncoiling at two ends by a coiling mechanism, wastes manpower and has higher labor intensity.

The invention relates to PTFE nano-film production equipment, which comprises an expander, an uncoiling mechanism and a coiling mechanism, wherein the uncoiling mechanism and the coiling mechanism are arranged at the feeding and discharging ends of the expander, the expander comprises a rack and an oven, a pair of conveying chains for clamping two sides of a film to convey through the oven are arranged on the rack, the return end of each conveying chain is arranged at the outer side of the oven, a multi-section cooling box is arranged at the outer side of the return end of each conveying chain, the multi-section cooling box wraps the return end of each conveying chain to enable the conveying chains to pass through the cooling boxes, each cooling box is connected with a suction pipe, the suction pipe is connected with a cooling fan, a secondary cooling box is arranged at the outer side of the process end of the conveying chain at the front end of the oven, blowing pipes for blowing air to the conveying chains are arranged at the front side and the back side of the secondary cooling boxes, the blowing pipes are connected with blowing fans, the blowing fans pump air outside a plant area, and the cooling fans are all adjustable speed fans, the secondary cooling box is also provided with a suction pipe connected with a cooling fan at the top, the winding mechanism comprises a base, two movable bottom plates are arranged at two ends of the base, a left support and a right support are fixed on the bottom plates at two sides, a winding shaft is arranged between the left support and the right support, a driving mechanism capable of driving the left support and the right support to reciprocate along the axial direction of the winding shaft is connected between the left support and the right support, the left support and the right support can reciprocate left and right during winding, so that during winding, the edge can be automatically wound, manpower is saved, the winding speed is improved, the unwinding mechanism comprises two parallel support plates, a rotary disc is rotatably arranged at the outer end of the lower part of one support plate, at least two support shafts are uniformly rotatably arranged on the rotary disc, the rear end of the rotary disc is fixedly connected with a switching motor, the switching motor is a stepping motor, the rotating angle can be controlled, and a driving shaft which is coaxial with the support shaft at the lowest support shaft is rotatably arranged at the outer end of the support plate at the front side, the front end of the driving shaft is fixedly connected with an uncoiling motor which is an adjustable-speed motor and can control the speed of coil breaking, and a connecting device is arranged between the driving shaft and the support shaft at the lowest part.

The winding machine is characterized in that guide rails are fixed at the tops of two ends of the base, sliding blocks are arranged on the guide rails, the sliding blocks are fixed with the base plate, the driving mechanism comprises two racks which are arranged in parallel, an incomplete gear is meshed between the two racks, a reciprocating motor is fixedly connected to the rear side of the incomplete gear and is an adjustable-speed motor, the reciprocating motor is fixed on a mounting plate, the mounting plate is fixed on the base, connecting arc plates are fixed at two ends of the two racks, a left support and a right support are respectively fixed on the outer sides of the two connecting arc plates through connecting rods, the incomplete gear can be driven to rotate through the reciprocating motor, so that the upper rack and the lower rack are alternately driven to move to achieve the purpose of driving the winding shaft in a reciprocating mode, the edge folding effect is better when the winding is conducted, a pair of a first support plate and a second support plate are arranged between the first support plate and the base plate, and a static removing roller is rotatably arranged on the second support plate, the film guide roller is installed in the last rotation of mounting panel, and film guide roller one end is fixed with the initiative motor, and the practical initiative motor drive of film guide roller can not cause frictional force inadequately to drive the film guide roller because the film is too thin and rotate, causes the film to expand and leads the membrane effect not good, influences the rolling and receives the limit effect.

The bearing roller is installed in the rotation between the left support and the right support of rolling axle one side, threaded connection has accommodate the lead screw on the left support, accommodate the lead screw's outer end is fixed with the rocker, accommodate the lead screw's inner is rotated and is installed the connector, the outer end of connector is equipped with polygonized connecting portion one, the one end of rolling axle is equipped with connecting portion one complex connecting groove one, rotate on the right support and install the axis of rotation, be fixed with band pulley one in the axis of rotation, band pulley one is connected with band pulley two through the belt, band pulley two is connected with the rolling motor, the inner of axis of rotation is equipped with polygonized connecting portion two, the other end of rolling axle is equipped with connecting portion two complex connecting groove two. The position of the connector can be adjusted by rocking the rocker, so that the winding shaft can be conveniently taken down and put down, and the winding roller can be conveniently replaced. The left support of bearing roller all is equipped with vertical limiting plate with the right support inboard, and the both sides of limiting plate are equipped with outside bending, and the outside of limiting plate all is fixed with the telescopic link, and the telescopic link of both sides is fixed respectively at the top of left support and right support, is equipped with adjusting bolt on the telescopic link.

The connecting device comprises a polygonal connecting block, a sliding groove for accommodating the connecting block to slide axially is formed in the inner end face of the driving shaft, a compression spring is fixed to the bottom of the sliding groove, the outer end of the compression spring is fixed to the connecting block, a strip-shaped groove is formed in the side wall of the inner end of the driving shaft, an opening for communicating the sliding groove is formed in the bottom of the strip-shaped groove, a driving lever fixed to the connecting block is arranged in the opening, a polygonal blind hole matched with the connecting block is formed in the inner end face of each supporting shaft, and a first guide roller is installed at the inner end of the top of each supporting plate in a rotating mode. Can drive the connecting block shrink through undulant driving lever for in the connecting block breaks away from the blind hole, remove the connection of back shaft and drive shaft, thereby provide convenience for the rotatory change of lap of rotary disk.

The utility model discloses a film roll, including drive shaft, guide roll I, backing roll II, the backup roll is installed in the backup pad of drive shaft, the backup pad is in between guide roll I and the guide roll II, the drive shaft, guide roll II, backing roll and guide roll I highly increase in proper order in vertical direction, conveniently change the film book, noninterfere disturbance, evenly distributed has the flattening pole of a plurality of elastic material preparation on the outer wall of backing roll, the both ends of flattening pole are equipped with the clamp plate, the inner outside of clamp plate is equipped with the annular turn-ups that compresses tightly the flattening pole on the backing roll, the interior terminal surface outside of clamp plate is equipped with the location blind hole that is used for fixing a position the flattening pole, the outside of clamp plate is equipped with the spacing snap ring of C type, be equipped with the annular spacing draw-in groove that is used for blocking spacing snap ring on the outer end circumference of backing roll, the backup pad is less than inner echelonment setting for the outer end. The film in the periphery can be flattened by the flattening rod, and the film wrinkles are prevented from influencing the expanding effect when entering the conveying chain.

The frame comprises an upper group of cross beams and a lower group of cross beams, a plurality of longitudinal beams are fixed between the upper group of cross beams and the lower group of cross beams, two horizontal support frame plates are arranged at the upper part of the left end of the frame, a conveying chain wheel for driving a conveying chain is rotatably arranged at the left end of each support frame plate, the conveying chain wheel is connected with a conveying motor, the conveying motor is an adjustable speed motor, a rolling support roller capable of rolling at the top of each longitudinal beam and a guide sleeve capable of sliding and guiding on each longitudinal beam are fixed at the bottoms of two ends of each support frame plate, the guide sleeve and the support frame plates are fixed through a connecting rod I, an adjusting rack I is fixed on each longitudinal beam, the adjusting rack I is meshed with an adjusting gear I, the adjusting gear I is fixedly connected with an adjusting motor I, the adjusting motor I is fixedly connected with the support frame plates through a support, the adjusting motor I can drive the adjusting gear I to rotate, so as to drive the support transverse plates to move back and forth along the longitudinal direction and forth, and adjust the width of the left ends of the two chains, thereby adapting to film rolls with different widths, the left side of the oven is provided with two splayed unfolding support beams, the bottoms of the two ends of the unfolding support beams are provided with first adjusting nuts, the first adjusting nuts are connected with first adjusting screws, the other ends of the first adjusting screws penetrate through the oven and are connected with second adjusting motors, the right end of the oven is provided with two parallel transverse support frames, the longitudinal beam at the rightmost end is sleeved with a support sliding sleeve capable of sliding forwards and backwards, the top of the support sliding sleeve is rotatably provided with a conveying chain wheel for driving the other end of a conveying chain, the conveying chain wheel is fixedly connected with a conveying motor, the right end of the support transverse support frame is fixed with a third adjusting motor, the third adjusting motor is fixedly connected with a second adjusting gear, the second adjusting gear is meshed with a second adjusting rack arranged longitudinally, the right end of the second adjusting rack is fixed with a longitudinal beam, the mounting longitudinal beam is fixed on a cross beam, the bottom of the left end of the transverse support frame is fixed with a second adjusting nut, the second adjusting nut is connected with a second adjusting screw rod, and the other end of the second adjusting screw rod penetrates through the oven and is connected with a fourth adjusting motor. The width of the unfolding support beam and the width of the support cross frame can be respectively adjusted through adjusting the motors from two to four, so that the film stretcher is suitable for films with different widths and films with different stretched widths. One side of the oven is provided with a maintenance door. And position sensors are arranged below the second adjusting nut and the first adjusting nut and are connected with a controller, and the controller is connected with a display screen, a second adjusting motor and a third adjusting motor.

The outer end of the conveying chain is uniformly provided with a plurality of clamping devices for clamping the edge part of the film, each clamping device comprises a fixed clamping plate fixed at the lower part of the outer side of the conveying chain, a movable clamping plate is arranged at the outer side of the upper part of the fixed clamping plate, a guide rod is fixed at the top part of the movable clamping plate, a guide sleeve is sleeved at the outer side of the guide rod, a spring sleeved on the guide rod is arranged in the lower part of the guide sleeve, a second connecting rod is hinged at the top part of the guide rod, a third connecting rod is hinged at the top part of the second connecting rod, a rotating sleeve is fixedly connected at the top part of the third connecting rod, the rotating sleeve is rotatably arranged on a pin shaft which is fixed on a support plate, an opening driving rod is fixed at the upper part of the rotating sleeve, a driving disc for stirring the opening driving rod to lift the movable clamping plate is arranged at the top part of the conveying chain, clamping bulges are arranged at the inner side of the support plate, clamping grooves matched with the clamping bulges are arranged at the outer side of the upper part of the conveying chain, and the clamping bulges are fixed on the conveying chain through locking bolts, the inner side of the guide sleeve is fixed with a fourth connecting rod, the upper ends of the fourth connecting rod are fixed on the support plate, the inner sides of the support frame plate, the unfolding support beam and the support cross frame are respectively provided with a guide groove, a rolling bearing capable of rolling in the guide grooves is arranged in the guide grooves, and the rolling bearing is rotatably arranged at the bottom of the outer side of the conveying chain wheel. Can make to open the actuating lever through the driving-disc and rotate around the round pin axle when passing through to drive connecting rod two and connecting rod three actions, make the guide arm overcome the elasticity upward movement of spring, make move splint and open with fixed splint and press from both sides the mouth, make things convenient for film limit portion to get into, move the splint in addition and can clip the limit portion of film, need not clip too much, prevent to lead to the fact film limit portion too thick because of the too much of limit portion clamp. The lower end of the guide rod is connected with the movable clamping plate through threads. The top of the movable clamping plate is provided with a groove for supporting the spring. The support plate is arranged to be detachable, so that the spring working in a long-term high-temperature environment can be conveniently detached and replaced.

The inner sides of the outer ends of the cooling boxes at the left end and the right end are provided with guide chain wheels, the guide chain wheels are rotatably installed on the cross beam, the outer ends of the guide chain wheels are provided with tensioning chain wheels, the tensioning chain wheels are rotatably installed on the adjusting supporting rods, the outer sides of the adjusting supporting rods are sleeved with adjusting supporting sleeves, locking bolts are arranged on the adjusting supporting sleeves, the outer sides of the blowing pipes are fixedly connected with air delivery pipes, and the air delivery pipes are connected with blowing fans. The tightness of the conveying chain can be conveniently adjusted.

The top of the first adjusting nuts at the two ends is fixed with a rotating rod, the top of the rotating rod is rotatably installed at the bottom of the expanded supporting beam, the bottom of the first adjusting nuts at the two ends is fixed with a first guide sliding sleeve sleeved on the longitudinal beam, the top of the second adjusting nut is fixed with a fixed rod, the top of the fixed rod is fixed with the bottom of the left end of the supporting cross frame, and the bottom of the second adjusting nut is fixed with a second guide sliding sleeve sleeved on the longitudinal beam. The bottom can slide and support when adjusting nut one and adjusting nut two, and is more steady when adjusting with supporting, expandes a supporting beam's both ends and adjusting nut one in addition and is connected for rotating, the independent adjustment that can be convenient expandes the position of a supporting beam one end.

The utility model discloses a multi-section drying oven, including oven, baffle, conveyer chain, the lateral wall, be equipped with the import that supplies the conveying chain to pass through on every baffle and the oven about, all be equipped with the heater below every multi-section drying area import, the lower extreme of every heater all is equipped with evenly distributed plate, evenly be equipped with the gas pocket on the evenly distributed plate, evenly distributed plate's below is equipped with the gas distribution pipe along the fore-and-aft direction, evenly be equipped with the venthole on the gas distribution pipe outer wall, gas distribution pipe's bottom mounting has the conveyer pipe, be equipped with the wind speed adjusting valve on the conveyer pipe, the bottom of conveyer pipe is fixed with the guide duct, the one end fixedly connected with buffer tank of guide duct, pipe connection cooling fan is passed through to upper portion one side of buffer tank, cooling fan's air intake connection trunk line, the suction tube is connected to the trunk line, the outside of oven and the outside of cooling case all are equipped with the heat preservation. All be equipped with temperature sensor one in every section drying area, the outside of the transport chain between secondary cooling case and the oven is equipped with temperature sensor two, temperature sensor one, temperature sensor two, the heater, the fan of blowing is connected with the PLC controller, the control temperature, heating temperature can be adjusted to the heater, the temperature of multistage drying area rises to the intermediate position temperature for the high left side of intermediate temperature gradually in addition, the right side temperature is less than intermediate temperature, be used for the film design, it is in the highest temperature drying area to expand a supporting beam's right-hand member portion. All be equipped with the valve on every suction tube, can control the cooling case through the number of opening and open the number to control the cooling of conveying chain and not too many, the cooling too many influences subsequent expanding practicality easily. In addition, one side of the oven is connected with a cold air inlet pipe, and the cold air inlet pipe is connected with a cooling fan, so that cold air can be introduced to reduce the temperature in the oven when the temperature in the oven is too high. Can be in through the hot-blast blowback once more to the oven that the cooling fan retrieved in addition, accomplish heat recovery and utilize, reduce the wasting of resources, the wind speed can not be too fast behind buffer tank and uniform distribution board of the wind that blows out in addition, can utilize the wind heating that blows out to blow the film, make the film when tensile, can not fall down, cause the film to scrape and drag, prevent that the film from damaging, the wind speed of every section drying area all can carry out the independent control in addition, conveniently adjust the wind speed of every section, make the film all be in horizontal showy state when walking in every section drying area.

Compared with the prior art, the invention has the advantages that:

return stroke end through the transport chain on the expander sets up in the outside of oven, then the cooperation sets up the cooling case at transport chain return stroke end, can be through the cooling of induced drafting, reduce the temperature of transport chain, prevent to be in the oven for a long time because of the transport chain inside, cause the high temperature, influence product expanding quality, be equipped with the unwinding mechanism that can make things convenient for quick change of lap and the winding mechanism who receives the limit automatically respectively in expander's exit both sides in addition, can quick replacement expand the membrane book, and can receive the limit to rolling featheredge portion automatically, and the efficiency is improved.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a left side view of the unwinding mechanism;

FIG. 3 is a schematic structural view of a rotary disk;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 5 is a schematic view of the structure of the connecting device;

FIG. 6 is a front view of the support plate;

FIG. 7 is a front view of the installation of the flattening rod;

FIG. 8 is a left side view schematic of the installation of the spreader beam;

FIG. 9 is an enlarged view of the structure at B in FIG. 1;

FIG. 10 is a right side view of the winding mechanism;

FIG. 11 is a schematic top view of the spreader;

FIG. 12 is an enlarged view of the structure of FIG. 10 at C;

FIG. 13 is an enlarged view of the structure of FIG. 10 at D;

FIG. 14 is a schematic view of the structure of the clamping device;

FIG. 15 is a schematic view of the guide sleeve mounting structure;

FIG. 16 is a schematic view of the mounting structure of the first adjusting nut;

FIG. 17 is a schematic view of the mounting structure of the second adjusting nut;

FIG. 18 is a schematic structural view of an oven;

wherein: 1. the device comprises an uncoiling mechanism, 101, a supporting plate, 102, a switching motor, 103, a turntable, 104, a supporting shaft, 105, a second guide roller, 106, a flattening rod, 107, a driving shaft, 108, an uncoiling motor, 109, a pressing plate, 110, a supporting roller, 111, a first guide roller, 112, a film roll, 113, a blind hole, 114, a driving lever, 115, a strip-shaped groove, 116, an opening, 117, a sliding groove, 118, a compression spring, 119, a connecting block, 120, a flanging, 121, a positioning blind hole, 122, a limiting clamping ring, 2, an expander, 201, a longitudinal beam, 202, a first adjusting rack, 203, a first adjusting gear, 204, a bracket, 205, an adjusting support rod, 206, an adjusting support sleeve, 207, a tensioning sprocket, 208, a blowing fan, 209, a guiding sprocket, 210, a cooling box, 211, a second adjusting motor, 212, an oven, 213, a first adjusting screw, 214, a fourth adjusting motor, 215, a second adjusting screw, 216, a conveying chain, 217, a conveying chain, a conveying and a conveying chain, a conveying and a conveying chain, wherein the conveying chain, a conveying and a conveying chain, a conveying and a conveying chain, a conveying mechanism, a conveying and a conveying mechanism, and a mechanism are arranged in a mechanism, and, Driving disc 218, conveying chain wheel 219, mounting longitudinal beam 220, adjusting rack two 221, adjusting motor three 222, supporting sliding sleeve 223, adjusting nut two 224, suction pipe 225, adjusting nut one 226, unfolding supporting beam 227, guide groove 228, air conveying pipe 229, supporting cross frame 230, blowing pipe 231, secondary cooling box 232, supporting frame plate 233, rotating rod 234, guiding sliding sleeve one 235, fixing rod 236, guiding sliding sleeve two 237, connecting rod one 238, guiding sleeve 239, rolling supporting roller 240, air distributing pipe 241, inlet 242, heat insulating layer 243, partition plate 244, buffer tank 245, heater 246, cooling fan 247, main pipe 248, air guiding pipe 249, air speed adjusting valve 250, uniform distributor plate 249, air speed adjusting valve 251, conveying pipe 252, locking bolt 253, rolling bearing 254, fixed clamping plate 255, moving clamping plate, 256. guide rod, 257, guide sleeve, 258, spring, 259, second connecting rod, 260, fourth connecting rod, 261, third connecting rod, 262, support plate, 263, opening driving rod, 264, rotating sleeve, 265, clamping protrusion, 3, winding mechanism, 301, driving motor, 302, first bracket plate, 303, film guide roller, 304, base, 305, right bracket, 306, guide rail, 307, winding shaft, 308, carrier roller, 309, left bracket, 310, limit plate, 311, telescopic rod, 312, second bracket plate, 313, static electricity removing roller, 314, adjusting bolt, 315, connecting rod, 316, mounting plate, 317, rack, 318, connecting arc plate, 319, rotating shaft, 320, first pulley, 321, winding motor, 322, second pulley, 323, incomplete gear, 324, reciprocating motor, 325, bottom plate, 326, sliding block, 327, adjusting screw rod, 328, rocker, 329 and connecting head.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 18, the present invention is a PTFE nano-film production apparatus, comprising a spreader 2, and an uncoiling mechanism 1 and a coiling mechanism 3 disposed at a feeding and discharging end of the spreader 2, wherein the spreader 2 comprises a frame and an oven 212, the frame is provided with a pair of conveying chains 216 for clamping two sides of a film to convey the film through the oven 212, a return end of the conveying chains 216 is disposed at an outer side of the oven 212, a plurality of cooling boxes 210 are disposed at an outer side of the return end of the conveying chains 216, each cooling box 210 is connected with a suction pipe 224, the suction pipe 224 is connected with a cooling fan 246, a secondary cooling box 231 is disposed at an outer side of a forward end of the conveying chains 216 at a front end of the oven 212, blowing pipes 230 for blowing air to the conveying chains 216 are disposed at front and rear sides of the secondary cooling box 231, the blowing pipes 230 are connected with a blowing fan 208, a suction pipe 224 connected with the cooling fan 246 is also disposed at a top of the secondary cooling box 231, the coiling mechanism 3 comprises a base 304, the two ends of the base 304 are provided with movable bottom plates 325, a left support 309 and a right support 305 are fixed on the bottom plates 325 at the two sides, a winding shaft 307 is arranged between the left support 309 and the right support 305, a driving mechanism capable of driving the left support 309 and the right support 305 to reciprocate along the axial direction of the winding shaft 307 is connected between the left support 309 and the right support 305, the unwinding mechanism 1 comprises two parallel support plates 101, a turntable 103 is rotatably mounted at the outer end of the lower part of the support plate 101 at one side, at least two support shafts 104, generally 2 or 3 support shafts 104 are uniformly rotatably mounted on the turntable 103, when 2 support shafts 104 are used, the switching motor 102 rotates 180 degrees each time, when 3 support shafts 104 are used, the switching motor 102 rotates 120 degrees, the rear end of the turntable 103 is fixedly connected with the switching motor 102, the outer end of the lower part of the support plate 101 at the front side is rotatably mounted with a drive shaft 107 which is coaxial with the support shaft 104 at the lowest part, an uncoiling motor 108 is fixedly connected to the front end of the driving shaft 107, and a connecting device is arranged between the driving shaft 107 and the lowest supporting shaft 104.

Guide rails 306 are fixed to the tops of two ends of a base 304, a sliding block 326 is arranged on the guide rails 306, the sliding block 326 is fixed to a bottom plate 325, a driving mechanism comprises two racks 317 arranged in parallel, an incomplete gear 323 is meshed between the two racks 317, a reciprocating motor 324 is fixedly connected to the rear side of the incomplete gear 323, the reciprocating motor 324 is fixed to a mounting plate 316, the mounting plate 316 is fixed to the base 304, connecting arc plates 318 are fixed to two ends of the two racks 317, a left support 309 and a right support 305 are respectively fixed to the outer sides of the two connecting arc plates 318 through connecting rods 315, a pair of first support plate 302 and a second support plate 312 are arranged between a rack and the base 304, the second support plate 312 is located between the first support plate 302 and the bottom plate 325, a static removing roller 313 is rotatably installed on the second support plate 312, a film guiding roller 303 is rotatably installed on the first support plate 302, and an active motor 301 is fixed to one end of the film guiding roller 303.

A supporting roller 308 is rotatably arranged between a left support 309 and a right support 305 on one side of a winding shaft 307, an adjusting screw 327 is connected to the left support 309 in a threaded manner, a rocker 328 is fixed at the outer end of the adjusting screw 327, a connector 329 is rotatably arranged at the inner end of the adjusting screw 327, a first polygonal connecting part is arranged at the outer end of the connector 329, a first connecting groove matched with the first connecting part is arranged at one end of the winding shaft 307, a rotating shaft 319 is rotatably arranged on the right support 305, a first belt wheel 320 is fixed on the rotating shaft 319, the first belt wheel 320 is connected with a second belt wheel 322 through a belt, a winding motor 321 is connected with the second belt wheel 322, a second polygonal connecting part is arranged at the inner end of the rotating shaft 319, a second connecting groove matched with the second connecting part is arranged at the other end of the winding shaft 307, vertical limiting plates 310 are respectively arranged on the inner sides of the left support 309 and the right support 305 on the left side of the supporting roller 308, outward bending is arranged on two sides of the limiting plates 310, the outer sides of the limiting plates 310 are all fixed with telescopic rods 311, the telescopic rods 311 on the two sides are respectively fixed at the tops of the left support 309 and the right support 305, and the telescopic rods 311 are provided with adjusting bolts 314. The connecting device comprises a polygonal connecting block 119, a sliding groove 117 for accommodating the connecting block 119 to slide along the axial direction is formed in the inner end face of the driving shaft 107, a compression spring 118 is fixed to the bottom of the sliding groove 117, the outer end of the compression spring 118 is fixed to the connecting block 119, a strip-shaped groove 115 is formed in the side wall of the inner end of the driving shaft 107, an opening 116 communicated with the sliding groove 117 is formed in the bottom of the strip-shaped groove 115, a shifting lever 114 fixed to the connecting block 119 is arranged in the opening 116, a polygonal blind hole 113 matched with the connecting block 119 is formed in the inner end face of each supporting shaft 104, and a first guide roller 111 is rotatably mounted at the inner top of each supporting plate 101.

A second guide roller 105 and a first support roller 110 are rotatably mounted on the support plate 101 between the driving shaft 107 and the first guide roller 111, the first support roller 110 is located between the first guide roller 111 and the second guide roller 105, the driving shaft 107, the second guide roller 105, the first support roller 110 and the first guide roller 111 are sequentially increased in height in the vertical direction, a plurality of flattening rods 106 made of elastic materials are uniformly distributed on the outer wall of the support roller 110, pressing plates 109 are arranged at two ends of each flattening rod 106, annular flanges 120 for pressing the flattening rods 106 onto the support rollers 110 are arranged on the outer sides of the inner ends of the pressing plates 109, positioning blind holes 121 for positioning the flattening rods 106 are arranged on the outer sides of the inner end surfaces of the pressing plates 109, C-shaped limiting clamping rings 122 are arranged on the outer sides of the pressing plates 109, annular limiting clamping grooves for clamping the limiting clamping rings 122 are arranged on the circumferences of the outer ends of the support rollers 110, and the outer ends of the support plate 101 are lower than the inner ends in a step shape.

The rack comprises an upper group of beams and a lower group of beams, a plurality of longitudinal beams 201 are fixed between the upper group of beams and the lower group of beams, two horizontal support frame plates 232 are arranged at the upper part of the left end of the rack, a conveying chain wheel 218 for driving a conveying chain 216 is rotatably arranged at the left end of each support frame plate 232, the conveying chain wheel 218 is connected with a conveying motor, rolling support rollers 239 capable of rolling at the top of the longitudinal beams 201 and guide sleeves 238 capable of sliding and guiding on the longitudinal beams 201 are fixed at the bottoms of the two ends of each support frame plate 232, the guide sleeves 238 and the support frame plates 232 are fixed through a first connecting rod 237, a first adjusting rack 202 is fixed on each longitudinal beam 201, a first adjusting gear 203 is meshed with the first adjusting gear 202, a first adjusting motor is fixedly connected with the first adjusting gear 203, the first adjusting motor is fixedly connected with the support frame plates 232 through a bracket 204, two splayed expansion support beams 226 are arranged on the left side of the oven 212, and first adjusting nuts 225 are arranged at the bottoms of the two ends of the expansion support beams 226, the first adjusting nut 225 is connected with a first adjusting screw rod 213, the other end of the first adjusting screw rod 213 penetrates through the oven 212 and is connected with a second adjusting motor 211, the right end of the oven 212 is provided with two parallel support cross frames 229, the longitudinal beam 201 at the rightmost end is sleeved with a support sliding sleeve 222 capable of sliding back and forth, the top of the support sliding sleeve 222 is rotatably provided with a conveying chain wheel 218 for driving the other end of the conveying chain 216, the conveying chain wheel 218 is fixedly connected with a conveying motor, the right end of the support cross frame 229 is fixed with the support sliding sleeve 222, the right side of the support sliding sleeve 222 is fixedly provided with a third adjusting motor 221, the third adjusting motor 221 is fixedly connected with a second adjusting gear, the second adjusting gear is meshed with a second adjusting rack 220 longitudinally arranged, the right end of the second adjusting rack 220 is fixedly provided with an installation longitudinal beam 219, the installation longitudinal beam 219 is fixed on a cross beam, the bottom of the left end of the support cross frame 229 is fixedly provided with a second adjusting nut 223, and the second adjusting nut 223 is connected with a second adjusting screw rod 215, the other end of the second adjusting screw 215 passes through the oven 212 and is connected with a fourth adjusting motor 214.

A plurality of clamping devices for clamping the edge of the film are uniformly arranged at the outer end of the conveying chain 216, each clamping device comprises a fixed clamping plate 254 fixed at the lower part of the outer side of the conveying chain 216, a movable clamping plate 255 is arranged at the outer side of the upper part of the fixed clamping plate 254, a guide rod 256 is fixed at the top part of the movable clamping plate 255, a guide sleeve 257 is sleeved at the outer side of the guide rod 256, a spring 258 sleeved on the guide rod 256 is arranged in the lower part of the guide sleeve 257, a second connecting rod 259 is hinged at the top part of the guide rod 256, a third connecting rod 261 is hinged at the top part of the second connecting rod 259, a rotating sleeve 264 is fixedly connected at the top part of the third connecting rod 261 and rotatably arranged on a pin shaft, the pin shaft is fixed on a support plate 262, an opening driving rod 263 is fixed at the upper part of the rotating sleeve 264, a driving disc 217 for shifting the opening driving rod 263 to lift the movable clamping plate 255 is arranged at the top part of the conveying chain wheel 218 at the two ends of the conveying chain 216, a clamping protrusion 265 is arranged at the inner side of the support plate 262, a clamping groove matched with the clamping protrusion 265 is arranged at the outer side of the upper part of the conveying chain 216, the clamping protrusion 265 is fixed on the conveying chain 216 through a locking bolt 252, a four-bar linkage 260 is fixed on the inner side of the guide sleeve 257, the upper end of the four-bar linkage 260 is fixed on the support plate 262, guide grooves 227 are formed in the inner sides of the support frame plate 232, the unfolding support beam 226 and the support cross frame 229, a rolling bearing 253 capable of rolling in the guide grooves is arranged in the guide grooves 227, and the rolling bearing 253 is rotatably installed at the bottom of the outer side of the conveying chain wheel 218.

The inner sides of the outer ends of the cooling boxes 210 at the left end and the right end are provided with guide chain wheels 209, the guide chain wheels 209 are rotatably installed on a cross beam, the outer ends of the guide chain wheels 209 are provided with tensioning chain wheels 207, the tensioning chain wheels 207 are rotatably installed on the adjusting supporting rods 205, the outer sides of the adjusting supporting rods 205 are sleeved with adjusting supporting sleeves 206, the adjusting supporting sleeves 206 are provided with locking bolts 252, the outer sides of the blowing pipes 230 are fixedly connected with air conveying pipes 228, and the air conveying pipes 228 are connected with a blowing fan 208.

The top of the adjusting nuts one 225 at both ends is fixed with a rotating rod 233, the top of the rotating rod 233 is rotatably installed at the bottom of the expanded support beam 226, the bottom of the adjusting nuts one 225 at both ends is fixed with a guide sliding sleeve one 234 sleeved on the longitudinal beam 201, the top of the adjusting nuts two 223 is fixed with a fixed rod 235, the top of the fixed rod 235 is fixed with the bottom of the left end of the support cross frame 229, and the bottom of the adjusting nuts two 223 is fixed with a guide sliding sleeve two 236 sleeved on the longitudinal beam 201.

A plurality of partition plates 243 are arranged in the oven 212, the oven 212 is divided into a plurality of sections of drying areas by the partition plates 243, inlets 241 for the conveying chains 216 to pass through are arranged on the left side wall and the right side wall of each partition plate 243 and the oven 212, a heater 245 is arranged below each section of drying area inlet 241, a uniform distribution plate 250 is arranged at the lower end of each heater 245, air holes are uniformly arranged on the uniform distribution plate 250, air distribution pipes 240 along the front and back direction are arranged below the uniform distribution plate 250, air outlet holes are uniformly arranged on the outer wall of each air distribution pipe 240, a conveying pipe 251 is fixed at the bottom end of each air distribution pipe 240, an air speed regulating valve 249 is arranged on each conveying pipe 251, an air guide pipe 248 is fixed at the bottom of each conveying pipe 251, one end of each air guide pipe 248 is fixedly connected with a buffer tank 244, one side of the upper part of each buffer tank 244 is connected with a cooling fan 246 through a pipeline, an air inlet of each cooling fan 246 is connected with a main pipeline 247, and the main pipeline is connected with a suction pipe 224, the outer side of the oven 212 and the outer side of the cooling box 210 are both provided with insulating layers 242.

When the film roll expanding device is used, a film roll 112 to be expanded is placed on the supporting shafts 104, one film roll can be placed on each supporting shaft 104, when the film roll expanding device needs to be replaced, the shifting rod 114 is shifted to enable the connecting block 119 to be separated from the blind hole 113, then the switching motor 102 drives the rotary table 103 to rotate, the next supporting shaft 104 rotates to the position matched with the driving shaft 107, the shifting rod 114 is released, the connecting block 119 is inserted into the blind hole 113 to complete connection, and quick replacement is completed, the head of the film roll 112 bypasses below the second guide roller 105, then is lapped on the flattening rod 106, is lapped on the first guide roller 111, clamps the head on the clamping device of the conveying chain 216, when the clamping device on the conveying chain 216 moves to the driving disc 217, the opening driving rod 263 can turn outwards around the pin shaft, so that the third connecting rod 261 and the second connecting rod 259 at the lower part are driven to move upwards, so that the guide rod 256 is driven to overcome the elasticity of the spring 258 to move upwards, so that enough space is left between the movable clamping plate 255 and the fixed clamping plate 254, a film to be widened can be placed between the movable clamping plate 255 and the fixed clamping plate 254, after the driving rod 263 is started to leave the position of the driving disk 217, the movable clamping plate 255 can clamp the edge of the film with the fixed clamping plate 254 again under the action of the spring 258, the conveying chains 216 on the two sides can be adjusted through the first adjusting motor, the second adjusting motor 211, the third adjusting motor 221 and the fourth adjusting motor 214 to adapt to different film rolls 112 and to unwind finished films with various widths, then the conveying chains 216 and the unwinding motor 108 are started, the conveying chains 216 drive the film to move from left to right, the film is heated after moving into the oven 212, and the film can be gradually stretched while being heated, so that the film is stretched to the required width in the oven 212, and the bottom of the oven 212 blows the film through wind, so that the film is in a floating state, the film can not be scraped, the film is taken on the film guide roller 303 and the destatic roller 313 under the transport of the conveying chain 216 after the film goes out of the oven 212 and then is wound on the winding shaft 307 of the winding mechanism 3, the winding shaft 307 is driven to reciprocate along the axial direction through the driving mechanism when the film is wound, the film edge winding effect is better, the manpower is saved, the efficiency is higher, in addition, the conveying chain 216 is conveyed to finish entering the return stroke stage, through the cooling box 210 and the suction pipe 224, the temperature on the conveying chain 216 is extracted, then the conveying chain is conveyed into the oven 212, namely, the conveying chain 216 is cooled, and the heat energy can be recycled.

In summary, the return end of the conveying chain on the expander is arranged outside the oven, and then the return end of the conveying chain is matched with the cooling box arranged at the return end of the conveying chain, so that the temperature of the conveying chain can be reduced through air suction cooling, the phenomenon that the temperature is too high and the expanding quality of a product is affected because the conveying chain is located in the oven for a long time is avoided, in addition, an uncoiling mechanism and an automatic edge-closing coiling mechanism which can conveniently and quickly change coils are respectively arranged on the two sides of the inlet and the outlet of the expander, the film coils can be quickly unfolded, the edges of the thin edge-closing coiling part can be automatically closed, and the efficiency is improved.

In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are for convenience only to describe the present invention without requiring the present invention to be necessarily constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. The utility model provides a PTFE nanometer membrane production facility, includes expander (2) and sets up at unwinding mechanism (1) and winding mechanism (3) of its business turn over material end, and expander (2) include frame and oven (212), are equipped with a pair of transport chain (216) of carrying the film both sides in the frame and carrying and passing oven (212), its characterized in that: the return end of the conveying chain (216) is positioned at the outer side of the oven (212), a plurality of sections of cooling boxes (210) are arranged at the outer side of the return end of the conveying chain (216), each section of cooling box (210) is connected with a suction pipe (224), the suction pipes (224) are connected with cooling fans (246), a secondary cooling box (231) is arranged at the outer side of the process end of the conveying chain (216) at the front end of the oven (212), blowing pipes (230) facing the conveying chain (216) for blowing are arranged at the front side and the rear side of the secondary cooling box (231), the blowing pipes (230) are connected with blowing fans (208), the top of the secondary cooling box (231) is also provided with the suction pipes (224) connected with the cooling fans (246), the winding mechanism (3) comprises a base (304), movable bottom plates (325) are arranged at the two ends of the base (304), a left support (309) and a right support (305) are fixed on the bottom plates (325) at the two sides, a winding shaft (307) is arranged between the left support (309) and the right support (305), a driving mechanism capable of driving the left support (309) and the right support (305) to reciprocate along the axial direction of the winding shaft (307) is connected between the left support (309) and the right support (305), the unwinding mechanism (1) comprises two parallel support plates (101), a turntable (103) is rotatably mounted at the outer end of the lower part of one support plate (101), at least two support shafts (104) are uniformly rotatably mounted on the turntable (103), a switching motor (102) is fixedly connected to the rear end of the turntable (103), a drive shaft (107) coaxial with the lowermost support shaft (104) is rotatably mounted at the outer end of the lower part of the front support plate (101), an unwinding motor (108) is fixedly connected to the front end of the drive shaft (107), and a connecting device is arranged between the drive shaft (107) and the lowermost support shaft (104); the frame comprises an upper group of transverse beams and a lower group of transverse beams, a plurality of longitudinal beams (201) are fixed between the upper group of transverse beams and the lower group of transverse beams, two horizontal support frame plates (232) are arranged at the upper part of the left end of the frame, a conveying chain wheel (218) for driving a conveying chain (216) is rotatably installed at the left end of each support frame plate (232), the conveying chain wheel (218) is connected with a conveying motor, rolling support rollers (239) capable of rolling at the tops of the longitudinal beams (201) and guide sleeves (238) capable of sliding and guiding on the longitudinal beams (201) are fixed at the bottoms of the two ends of each support frame plate (232), the guide sleeves (238) and the support frame plates (232) are fixed through first connecting rods (237), first adjusting racks (202) are fixed on the longitudinal beams (201), the first adjusting racks (202) are meshed with first adjusting gears (203), the first adjusting gears (203) are fixedly connected with first adjusting motors, the first adjusting motors are fixedly connected with the support frame plates (232) through supports (204), the left side of the oven (212) is provided with two splayed unfolding supporting beams (226), the bottoms of the two ends of each unfolding supporting beam (226) are provided with a first adjusting nut (225), each first adjusting nut (225) is connected with a first adjusting screw (213), the other end of each first adjusting screw (213) penetrates through the oven (212) to be connected with a second adjusting motor (211), the right end of the oven (212) is provided with two parallel transverse supporting frames (229), the longitudinal beam (201) at the rightmost end is sleeved with a supporting sliding sleeve (222) capable of sliding back and forth, the top of the supporting sliding sleeve (222) is rotatably provided with a conveying chain wheel (218) driving the other end of a conveying chain (216), the conveying chain wheel (218) is fixedly connected with a conveying motor, the right end of each transverse supporting frame (229) is fixed with the corresponding supporting sliding sleeve (222), the right side of the corresponding supporting sliding sleeve (222) is fixedly provided with a third adjusting motor (221), and the third adjusting gear (221) is fixedly connected with a second adjusting gear, a second adjusting gear (220) which is longitudinally arranged is meshed with the second adjusting gear, a second mounting longitudinal beam (219) is fixed at the right end of the second adjusting gear (220), the second mounting longitudinal beam (219) is fixed on the cross beam, a second adjusting nut (223) is fixed at the bottom of the left end of the transverse support frame (229), the second adjusting nut (223) is connected with a second adjusting screw rod (215), and the other end of the second adjusting screw rod (215) penetrates through the oven (212) to be connected with a fourth adjusting motor (214); the outer end of the conveying chain (216) is uniformly provided with a plurality of clamping devices for clamping the edge part of a film, each clamping device comprises a fixed clamping plate (254) fixed at the lower part of the outer side of the conveying chain (216), a movable clamping plate (255) is arranged at the outer side above the fixed clamping plate (254), a guide rod (256) is fixed at the top of the movable clamping plate (255), a guide sleeve (257) is sleeved at the outer side of the guide rod (256), a spring (258) sleeved on the guide rod (256) is arranged in the lower part of the guide sleeve (257), a second connecting rod (259) is hinged at the top of the guide rod (256), a third connecting rod (261) is hinged at the top of the second connecting rod (259), a rotating sleeve (264) is fixedly connected at the top of the third connecting rod (261), the rotating sleeve (264) is rotatably arranged on a pin shaft, the pin shaft is fixed on the supporting plate (262), an opening driving rod (263) is fixed at the upper part of the rotating sleeve (264), driving discs (217) for shifting the opening driving rod (263) to lift the movable clamping plate (255) are arranged at the top of conveying chain (218) at two ends of the conveying chain (216), the inboard of extension board (262) is equipped with joint arch (265), carry chain (216) upper portion outside to be equipped with joint arch (265) complex joint recess, joint arch (265) are fixed on carrying chain (216) through locking bolt (252), guide pin bushing (257) inboard is fixed with connecting rod four (260), connecting rod four (260) upper end is fixed on extension board (262), support frame plate (232), the inboard of expansion supporting beam (226) and support crossbearer (229) all is equipped with guide slot (227), be equipped with rolling bearing (253) that can be in it in guide slot (227), rolling bearing (253) rotate to be installed in the outside bottom of carrying sprocket (218).

2. The PTFE nanomembrane production apparatus according to claim 1, wherein: guide rails (306) are fixed at the tops of two ends of the base (304), a sliding block (326) is arranged on the guide rails (306), the sliding block (326) is fixed with the base plate (325), the driving mechanism comprises two racks (317) which are arranged in parallel, an incomplete gear (323) is meshed between the two racks (317), a reciprocating motor (324) is fixedly connected to the rear side of the incomplete gear (323), the reciprocating motor (324) is fixed on the mounting plate (316), the mounting plate (316) is fixed on the base (304), connecting arc plates (318) are fixed at two ends of the two racks (317), a left support (309) and a right support (305) are respectively fixed to the outer sides of the two connecting arc plates (318) through connecting rods (315), a pair of a support plate I (302) and a support plate II (312) is arranged between the support plate I (302) and the base plate (325), a static removing roller (313) is rotatably installed on the support plate II (312), a film guide roller (303) is rotatably arranged on the first support plate (302), and one end of the film guide roller (303) is fixedly provided with a driving motor (301).

3. The PTFE nanomembrane production apparatus according to claim 2, wherein: a carrier roller (308) is rotatably arranged between a left support (309) and a right support (305) on one side of the winding shaft (307), an adjusting screw rod (327) is connected to the left support (309) in a threaded manner, a rocker (328) is fixed to the outer end of the adjusting screw rod (327), a connector (329) is rotatably arranged at the inner end of the adjusting screw rod (327), a polygonal first connecting portion is arranged at the outer end of the connector (329), a first connecting groove matched with the first connecting portion is formed in one end of the winding shaft (307), a rotating shaft (319) is rotatably arranged on the right support (305), a first belt wheel (320) is fixed on the rotating shaft (319), the first belt wheel (320) is connected with a second belt wheel (322) through a belt, a winding motor (321) is connected with the second belt wheel (322), a polygonal second connecting portion is arranged at the inner end of the rotating shaft (319), a second connecting groove matched with the second connecting portion is formed in the other end of the winding shaft (307), left support (309) and right support (305) inboard on bearing roller (308) left side all are equipped with vertical limiting plate (310), and the both sides of limiting plate (310) are equipped with outside bending, and the outside of limiting plate (310) all is fixed with telescopic link (311), and telescopic link (311) of both sides are fixed respectively at the top of left support (309) and right support (305), are equipped with adjusting bolt (314) on telescopic link (311).

4. The PTFE nanomembrane production apparatus according to claim 3, wherein: the connecting device comprises polygonal connecting blocks (119), a sliding groove (117) which is used for accommodating the connecting blocks (119) and slides along the axial direction is formed in the inner end face of the driving shaft (107), a compression spring (118) is fixed to the bottom of the sliding groove (117), the outer end of the compression spring (118) is fixed to the connecting blocks (119), a strip-shaped groove (115) is formed in the side wall of the inner end of the driving shaft (107), an opening (116) which is communicated with the sliding groove (117) is formed in the bottom of the strip-shaped groove (115), a deflector rod (114) which is fixed to the connecting blocks (119) is arranged in the opening (116), a polygonal blind hole (113) which is matched with the connecting blocks (119) is formed in the inner end face of the inner end of the top of each supporting shaft (104), a first guide roller (111) is rotatably installed at the inner end of the top of each supporting plate (101), a second guide roller (105) and a supporting roller (110) are rotatably installed on the supporting plate (101) between the driving shaft (107) and the first guide roller (111), the supporting roller (110) is arranged between the first guide roller (111) and the second guide roller (105), the heights of the driving shaft (107), the second guide roller (105), the supporting roller (110) and the first guide roller (111) are sequentially increased in the vertical direction, and the outer end of the supporting plate (101) is lower than the inner end of the supporting plate in a stepped mode.

5. The PTFE nanomembrane production apparatus according to claim 4, wherein: evenly distributed has flattening pole (106) of a plurality of elastic material preparation on the outer wall of backing roll (110), the both ends of flattening pole (106) are equipped with clamp plate (109), the inner outside of clamp plate (109) is equipped with annular turn-ups (120) that compress tightly flattening pole (106) on backing roll (110), the inner terminal surface outside of clamp plate (109) is equipped with location blind hole (121) that are used for fixing a position flattening pole (106), the outside of clamp plate (109) is equipped with the spacing snap ring (122) of C type, be equipped with the annular spacing draw-in groove that is used for blocking spacing snap ring (122) on the outer end circumference of backing roll (110).

6. The PTFE nanomembrane production apparatus according to claim 5, wherein: the outer end inboard of controlling both ends cooling case (210) is equipped with leading sprocket (209), leading sprocket (209) rotate to be installed on the crossbeam, the outer end of leading sprocket (209) is equipped with tension sprocket (207), tension sprocket (207) rotate to be installed on adjusting strut (205), the outside cover of adjusting strut (205) has regulation journal sleeve (206), be equipped with locking bolt (252) on regulation journal sleeve (206), the outside fixedly connected with air transmission pipe (228) of blowing pipe (230), air transmission pipe (228) are connected blower (208).

7. The PTFE nanomembrane production apparatus according to claim 6, wherein: the top of the first adjusting nuts (225) at the two ends is fixed with a rotating rod (233), the top end of the rotating rod (233) is rotatably installed at the bottom of the unfolded supporting beam (226), the bottom of the first adjusting nuts (225) at the two ends is fixed with a first guide sliding sleeve (234) sleeved on the longitudinal beam (201), the top of the second adjusting nut (223) is fixed with a fixed rod (235), the top of the fixed rod (235) is fixed with the bottom of the left end of the supporting cross frame (229), and the bottom of the second adjusting nut (223) is fixed with a second guide sliding sleeve (236) sleeved on the longitudinal beam (201).

8. The PTFE nanomembrane production apparatus according to claim 7, wherein: a plurality of clapboards (243) are arranged in the oven (212), the clapboards (243) divide the oven (212) into a plurality of sections of drying areas, inlets (241) for the transmission chains (216) to pass through are respectively arranged on the left side wall and the right side wall of each clapboard (243) and the oven (212), heaters (245) are respectively arranged below the inlets (241) of each plurality of sections of drying areas, the lower end of each heater (245) is provided with a uniform distribution plate (250), air holes are uniformly arranged on the uniform distribution plates (250), an air distribution pipe (240) along the front-back direction is arranged below the uniform distribution plates (250), air outlet holes are uniformly arranged on the outer wall of the air distribution pipe (240), a conveying pipe (251) is fixed at the bottom end of the air distribution pipe (240), an air speed regulating valve (249) is arranged on the conveying pipe (251), an air guide pipe (248) is fixed at the bottom of the conveying pipe (251), one end of the air guide pipe (248) is fixedly connected with a buffer tank (244), one side of the upper part of the buffer tank (244) is connected with a cooling fan (246) through a pipeline, an air inlet of the cooling fan (246) is connected with a main pipeline (247), the main pipeline (247) is connected with a suction pipe (224), and the outer side of the drying oven (212) and the outer side of the cooling box (210) are both provided with a heat preservation layer (242).