CN112936832B

CN112936832B - PTFE electronic film production expander

Info

Publication number: CN112936832B
Application number: CN202110113240.2A
Authority: CN
Inventors: 胥平; 曹开斌
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: 2022-10-04
Anticipated expiration: 2041-01-27
Also published as: CN112936832A

Abstract

The invention relates to a PTFE electronic film production expanding device which comprises a rack and an oven, wherein a pair of conveying chains for clamping two sides of a film to convey the film through the oven is 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 sides of the return ends of the conveying chains, each cooling box is connected with a suction pipe, each 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 facing 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 electronic film production expander

Technical Field

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

Background

The PTFE electronic film has a microporous structure with fibers arranged in a staggered mode, and the microporous structure is stable and effectively intercepts dust particles through a biaxial stretching process and high-temperature heat setting treatment. The PTFE electronic membrane has strong hydrophobicity, low surface energy and good non-adhesive capacity, can effectively remove dust accumulated on the surface, can recover the performance by washing or back flushing, prolongs the service life, has overhigh filtering efficiency, can meet the grade requirement of the super-efficient air filtering efficiency, and has good filtering performance compared with other filtering materials. The PTFE electronic film fiber staggered structure has the advantages that the porosity of the PTFE electronic film reaches more than 85%, and air can smoothly circulate; the aperture of the membrane is 0.1-1 μm, water drops can be effectively blocked, and the waterproof grade can reach more than IPX 7; the PTFE electronic film has good rigidity, moderate density and small sound insulation loss. The PTFE electronic film also has the characteristics of water resistance, air permeability, good temperature resistance and good sound permeability, and is widely applied to the packaging industries of the electronic industry, the automobile industry, the solar industry, the communication industry and the like.

Short PTFE electronic films are stretched in an oven by a tentering device in the production process of the PTFE electronic films, so that the PTFE electronic films are manufactured, but the chains clamping two ends of the nano films enter and exit from the oven by the conventional tentering machine, so that the time that the chains are in the oven is long, and after the time is long, the temperature of the chains is greatly higher than that required by stretching the films, so that the products are unqualified in production.

Disclosure of Invention

The invention aims to provide a PTFE electronic film production expanding device, which solves the problem that the temperature of a chain of the existing expanding machine is too high, so that the product is unqualified.

The invention relates to a PTFE electronic film production expanding device which comprises a rack and an oven, wherein a pair of conveying chains for clamping two sides of a film to convey the film through the oven is arranged on the rack, the return end of each conveying chain is positioned on the outer side of the oven, a plurality of sections of cooling boxes are arranged on the outer side of the return end of each conveying chain, wrap the return end of each conveying chain and enable the conveying chains to pass through the cooling boxes, each cooling box is connected with a suction pipe, each suction pipe is connected with a cooling fan, a secondary cooling box is arranged on 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 on the front side and the rear side of the secondary cooling boxes, each blowing pipe is connected with a blowing fan, the blowing fans pump pumps air outside a factory area to blow out, the blowing fans and the cooling fans are both speed-adjustable fans to further cool, and the suction pipes connected with the cooling fans are also arranged at the tops of the secondary cooling boxes. The utility model discloses a multi-section drying oven, including oven, baffle, conveyer sprocket, the lateral wall, be equipped with the import that supplies conveying sprocket to pass through about every baffle and oven, every multi-section drying area import below all is equipped with the heater, 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.

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.

Preferably, the frame includes upper and lower two sets of crossbeams, be fixed with many longerons between upper and lower two sets of crossbeams, frame left end upper portion is equipped with two horizontally support frame boards, the left end of support frame board rotates the conveying sprocket who installs drive conveyor chain, conveying sprocket is connected with conveyor motor, conveyor motor is adjustable speed motor, the both ends bottom of support frame board is fixed with can be at rolling backing roll in longeron top and the uide bushing of sliding guide on the longeron, the uide bushing passes through connecting rod one with the support frame board and fixes, be fixed with regulation rack one on the longeron, regulation rack one meshing has regulation gear one, regulation gear one fixedly connected with regulating motor one, regulating motor one passes through support fixed connection support frame board, can drive regulation gear one through regulating motor one and rotate, thereby drive the support diaphragm along vertical seesaw, adjust the width of two chain left ends, thereby adapt to the membrane book of different width.

Preferably, two unfolding support beams in a splayed shape are arranged on the left side of the oven, a first adjusting nut is arranged at the bottoms of two ends of each unfolding support beam, the first adjusting nut is connected with a first adjusting screw rod, the other end of the first adjusting screw rod penetrates through the oven and is connected with a second adjusting motor, two parallel support cross frames are arranged at the right end of the oven, a support sliding sleeve capable of sliding back and forth is sleeved on the longitudinal beam at the rightmost end of the oven, a conveying chain wheel for driving the other end of a conveying chain is rotatably mounted at the top of the support sliding sleeve, the conveying chain wheel is fixedly connected with the conveying motor, the right end of each support cross frame is fixed with the support sliding sleeve, a third adjusting motor is fixed on the right side of the support sliding sleeve, the third adjusting motor is fixedly connected with a second adjusting gear, the second adjusting gear is meshed with a second adjusting rack longitudinally arranged, a mounting longitudinal beam is fixed at the right end of the second adjusting rack, the mounting longitudinal beam is fixed at the bottom of the left end of the support cross frame, 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 fourth adjusting motor.

Preferably, a plurality of clamping devices for clamping the edge of the film are uniformly installed at the outer end of the conveying chain, each clamping device comprises a fixed clamping plate fixed on the lower portion of the outer side of the conveying chain, a movable clamping plate is arranged on the outer side of the upper portion of the fixed clamping plate, a guide rod is fixed on the top of the movable clamping plate, a guide sleeve is sleeved on the outer side of the guide rod, a spring sleeved on the guide rod is arranged in the lower portion of the guide sleeve, the top of the guide rod is hinged to a second connecting rod, the top of the second connecting rod is hinged to a third connecting rod, a rotating sleeve is fixedly connected to the top of the third connecting rod, the rotating sleeve is rotatably installed on a pin shaft, the pin shaft is fixed on a supporting plate, an opening driving rod is fixed on the upper portion of the rotating sleeve, and driving discs for shifting the opening driving rods to lift the movable clamping plates are arranged at the tops of conveying chain wheels at two ends of the conveying chain. 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.

Preferably, the inner side of the support plate is provided with a clamping protrusion, the outer side of the upper portion of the conveying chain is provided with a clamping groove matched with the clamping protrusion, the clamping protrusion is fixed on the conveying chain through a locking bolt, the inner side of the guide sleeve is fixedly provided with a fourth connecting rod, the upper end of the fourth connecting rod is fixed on the support plate, and the lower end of the guide rod is in threaded connection with the movable clamp plate. 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.

Preferably, the inner sides of the support frame plate, the unfolding support beam and the support cross frame are provided with guide grooves, rolling bearings capable of rolling in the guide grooves are arranged in the guide grooves, and the rolling bearings are rotatably arranged at the bottom of the outer side of the conveying chain wheel. The conveying direction of the conveying chain can be conveniently set, and the conveying chain is more stable in conveying.

Preferably, 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 support rods, the outer sides of the adjusting support rods are sleeved with adjusting support sleeves, the adjusting support sleeves are provided with locking bolts, the outer sides of the blowing pipes are fixedly connected with air conveying pipes, and the air conveying pipes are connected with a blowing fan. The tightness of the conveying chain can be conveniently adjusted.

Preferably, 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.

Preferably, the outer side of the oven and the outer side of the cooling box are both provided with insulating layers. The heat loss is reduced.

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

the return stroke end through the conveying chain on the expander sets up the outside at the oven, then the cooperation sets up the cooling box at conveying chain return stroke end, can be through induced-draught cooling, reduce the temperature of conveying chain, prevent to be in the oven for a long time because of conveying the chain inside, cause the high temperature, influence the product expanding quality, through in the wind recycling oven that the cooling fan was taken out once more, it is extravagant to reduce the energy, and the wind that blows to in the oven can be blown the film and be in the showy state, prevent that the film from falling and causing the scratch, in addition for the segmentation heating in the oven, can adjust required segment number as required, be applicable to multiple product, and the expanding effect is better.

Drawings

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

FIG. 2 is a schematic view of the structure of the clamping device;

FIG. 3 is a schematic view of the installation structure of the guide sleeve;

FIG. 4 is a schematic view of the mounting structure of the first adjusting nut;

FIG. 5 is a schematic view of the mounting structure of the second adjusting nut;

FIG. 6 is a schematic structural view of an oven;

wherein: 1. longitudinal beam, 2, adjusting rack I, 3, adjusting gear I, 4, bracket, 5, adjusting support rod, 6, adjusting support sleeve, 7, tensioning sprocket, 8, blowing fan, 9, guide sprocket, 10, cooling box, 11, adjusting motor II, 12, oven, 13, adjusting screw rod I, 14, adjusting motor III, 15, adjusting screw rod II, 16, conveying chain, 17, driving disc, 18, conveying sprocket, 19, mounting longitudinal beam, 20, adjusting rack II, 21, adjusting motor IV, 22, supporting sliding sleeve, 23, adjusting nut II, 24, suction pipe, 25, adjusting nut I, 26, unfolding support beam, 27, guide groove, 28, air conveying pipe, 29, supporting transverse frame, 30, blowing pipe, 31, secondary cooling box, 32, a support frame plate, 33, a rotating rod, 34, a first guide sliding sleeve, 35, a fixed rod, 36, a second guide sliding sleeve, 37, a first connecting rod, 38, a guide sleeve, 39, a rolling support roller, 40, an air distribution pipe, 41, an inlet, 42, a heat insulation layer, 43, a partition plate, 44, a buffer tank, 45, a heater, 46, a cooling fan, 47, a main pipeline, 48, an air guide pipe, 49, an air speed adjusting valve, 50, a uniform distribution plate, 51, a conveying pipe, 52, a locking bolt, 53, a rolling bearing, 54, a fixed clamping plate, 55, a movable clamping plate, 56, a guide rod, 57, a guide sleeve, 58, a spring, 59, a second connecting rod, 60, a fourth connecting rod, 61, a third connecting rod, 62, a support plate, 63, an opening drive rod, 64, a rotating sleeve, 65 and a clamping bulge.

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 6, the invention is a PTFE electronic film production expanding apparatus, comprising a rack and an oven 12, wherein the rack is provided with a pair of conveying chains 16 for clamping two sides of a film and conveying the film through the oven 12, a return end of the conveying chain 16 is positioned outside the oven 12, a plurality of sections of cooling boxes 10 are arranged outside the return end of the conveying chain 16, each section of cooling box 10 is connected with a suction pipe 24, the suction pipe 24 is connected with a cooling fan 46, a secondary cooling box 31 is arranged outside a process end of the conveying chain 16 at the front end of the oven 12, blowing pipes 30 for blowing air against the conveying chain 16 are arranged at the front side and the rear side of the secondary cooling box 31, the blowing pipes 30 are connected with a blowing fan 8, and the top of the secondary cooling box 31 is also provided with the suction pipe 24 connected with the cooling fan 46; be equipped with a plurality of baffles 43 in oven 12, baffle 43 cuts apart into the multistage drying zone to oven 12, all be equipped with the import 41 that supplies conveying sprocket 18 to pass through on every baffle 43 and the lateral wall about oven 12, every multistage drying zone import 41 below all is equipped with heater 45, the lower extreme of every heater 45 all is equipped with evenly distributed plate 50, evenly be equipped with the gas pocket on evenly distributed plate 50, evenly distributed plate 50's below is equipped with along the cloth trachea 40 of fore-and-aft direction, evenly be equipped with the venthole on the cloth trachea 40 outer wall, the bottom mounting of cloth trachea 40 has conveyer pipe 51, be equipped with wind speed control valve 49 on the conveyer pipe 51, the bottom mounting of conveyer pipe 51 has guide duct 48, the one end fixedly connected with buffer tank 44 of guide duct 48, upper portion one side of buffer tank 44 is through pipe connection cooling fan 46, cooling fan 46's air intake connection main pipe 47, main pipe 47 connects suction tube 24.

The frame includes upper and lower two sets of crossbeams, be fixed with many longerons 1 between upper and lower two sets of crossbeams, frame left end upper portion is equipped with two horizontally support frame boards 32, support frame board 32's left end rotates the conveying sprocket 18 of installing drive conveyor chain 16, conveying sprocket 18 is connected with conveyor motor, support frame board 32's both ends bottom is fixed with can be at 1 rolling backing roll 39 in longeron top and the uide bushing 38 that can slide guide on longeron 1, uide bushing 38 is fixed through connecting rod 37 with support frame board 32, be fixed with regulation rack one 2 on the longeron 1, regulation rack one 2 meshes has adjusting

gear

3, 3 fixedly connected with adjusting motor one of adjusting gear, adjusting motor one passes through 4 fixedly connected support frame board 32 of support.

Two splayed unfolding support beams 26 are arranged on the left side of the oven 12, two parallel support cross frames 29 are arranged at the bottoms of two ends of each unfolding support beam 26, each adjustment nut 25 is connected with an adjustment screw rod 13, the other end of each adjustment screw rod 13 penetrates through the oven 12 and is connected with an adjustment motor II 11, two parallel support cross frames 29 are arranged at the right end of the oven 12, a support sliding sleeve 22 capable of sliding back and forth is sleeved on the longitudinal beam 1 at the rightmost end, a conveying chain wheel 18 driving the other end of a conveying chain 16 is rotatably arranged at the top of the support sliding sleeve 22, the conveying chain wheel 18 is fixedly connected with a conveying motor, the right end of each support cross frame 29 is fixed with the support sliding sleeve 22, an adjustment motor III 14 is fixed on the right side of the support sliding sleeve 22, an adjustment gear II is fixedly connected with an adjustment gear II, the adjustment gear II is meshed with an adjustment rack II 20 which is longitudinally arranged, an installation longitudinal beam 19 is fixed at the right end of the adjustment rack II 20, the installation longitudinal beam 19 is fixed on the cross beam, an adjustment nut II 23 is fixed at the bottom of the left end of the support cross frame 29, the adjustment nut II is connected with an adjustment screw rod 15, and the other end of the adjustment screw rod 12 penetrates through an adjustment motor IV 21.

The outer end of the conveying chain 16 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 54 fixed on the lower part of the outer side of the conveying chain 16, a movable clamping plate 55 is arranged on the outer side above the fixed clamping plate 54, a guide rod 56 is fixed on the top of the movable clamping plate 55, a guide sleeve 57 is sleeved on the outer side of the guide rod 56, a spring 58 sleeved on the guide rod 56 is arranged in the lower part of the guide sleeve 57, the top of the guide rod 56 is hinged with a second connecting rod 59, the top of the second connecting rod 59 is hinged with a third connecting rod 61, the top of the third connecting rod 61 is fixedly connected with a rotating sleeve 64, the rotating sleeve 64 is rotatably arranged on a pin shaft, the pin shaft is fixed on a support plate 62, the upper part of the rotating sleeve 64 is fixed with an opening driving rod 63, and the top of the conveying chain wheels 18 at the two ends of the conveying chain 16 is provided with a driving disc 17 for shifting the opening driving rod 63 to lift the movable clamping plate 55.

Clamping protrusions 65 are arranged on the inner side of the support plate 62, clamping grooves matched with the clamping protrusions 65 are formed in the outer side of the upper portion of the conveying chain 16, the clamping protrusions 65 are fixed on the conveying chain 16 through locking bolts 52, a connecting rod IV 60 is fixed on the inner side of the guide sleeve 57, and the upper end of the connecting rod IV 60 is fixed on the support plate 62.

The inner sides of the support frame plate 32, the unfolding support beam 26 and the support cross frame 29 are all provided with a guide groove 27, a rolling bearing 53 capable of rolling in the guide groove 27 is arranged in the guide groove 27, and the rolling bearing 53 is rotatably arranged at the bottom of the outer side of the conveying chain wheel 18.

The inner sides of the outer ends of the cooling boxes 10 at the left end and the right end are provided with guide chain wheels 9, the guide chain wheels 9 are rotatably installed on the cross beam, the outer ends of the guide chain wheels 9 are provided with tensioning chain wheels 7, the tensioning chain wheels are rotatably installed on the adjusting supporting rods 5, the outer side of each adjusting supporting rod 5 is sleeved with an adjusting supporting sleeve 6, and each adjusting supporting sleeve 6 is provided with a locking bolt 52.

An air delivery pipe 28 is fixedly connected to the outer side of the blowing pipe 30, and the air delivery pipe 28 is connected with the blowing fan 8.

The top of the adjusting nuts 25 at two ends are both fixed with a rotating rod 33, the top end of the rotating rod 33 is rotatably installed at the bottom of the expanded supporting beam 26, the bottom of the adjusting nuts 25 at two ends is fixed with a first guide sliding sleeve 34 sleeved on the longitudinal beam 1, the top of the adjusting nut 23 is fixed with a fixing rod 35, the top of the fixing rod 35 is fixed with the bottom of the left end of the supporting cross frame 29, and the bottom of the adjusting nut 23 is fixed with a second guide sliding sleeve 36 sleeved on the longitudinal beam 1.

The outer side of the oven 12 and the outer side of the cooling box 10 are both provided with insulating layers 42.

When the holding device on the conveying chain 16 moves to the driving disc 17, the opening driving rod 63 can be overturned outwards around the pin shaft, so as to drive the connecting rod three 61 and the connecting rod two 59 at the lower part to move upwards, so as to drive the guide rod 56 to move upwards against the elastic force of the spring 58, so that the movable clamping plate 55 and the fixed clamping plate 54 leave enough space, a film to be widened can be placed between the movable clamping plate 55 and the fixed clamping plate 54, after the opening driving rod 63 leaves the position of the driving disc 17, the movable clamping plate 55 can clamp the edge part of the film with the fixed clamping plate 54 again under the action of the spring 58, the conveying chains 16 at two sides can be adjusted through the adjusting motor one, the adjusting motor two 11, the adjusting motor three 14 and the adjusting motor four 21, and can adapt to different film rolls 12 and spread finished films with various widths, conveying chain 16 drives the film and moves from the left to the right, heat the film after the film movement gets into oven 12, in the time of the heating, can stretch the film gradually, make the film stretch to required width in oven 12, and the bottom of oven 12 is blowing the film through wind, make the film be in the state of floating, can not scrape brokenly the film, the film has gone out and has carried to rolling axle department under conveying chain 16's transport behind oven 12, and add the holding device when the driving-disc through the right-hand member, can make movable clamp plate and fixed clamp plate separate, the film is deviate from, get into the rolling axle, conveying chain 16 is in the transport and is accomplished to get into the back stroke stage back in addition, through cooling box 10 and suction tube 24, extract the temperature on the conveying chain 16, then carry in oven 12, promptly cool down conveying chain 16, and accomplish recycle heat energy.

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 products is influenced because the conveying chain is located in the oven for a long time is prevented, the air extracted by the cooling fan is recycled into the oven again, the energy waste is reduced, the air blown into the oven can blow the film to be in a floating state, the film is prevented from falling to cause scratches, in addition, the oven is heated in a segmented mode, the required number of segments can be adjusted according to needs, the expanding device is suitable for various products, and the expanding effect is better.

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 electronic film production expander equipment, includes frame and oven (12), is equipped with a pair of transport chain (16) of carrying the film both sides and carrying and passing oven (12) in the frame, its characterized in that: the return end of the conveying chain (16) is positioned on the outer side of the drying oven (12), a plurality of sections of cooling boxes (10) are arranged on the outer side of the return end of the conveying chain (16), a suction pipe (24) is connected to each section of cooling box (10), a cooling fan (46) is connected to each suction pipe (24), a secondary cooling box (31) is arranged on the outer side of the advancing end of the conveying chain (16) at the front end of the drying oven (12), blowing pipes (30) facing the conveying chain (16) for blowing are arranged on the front side and the rear side of the secondary cooling box (31), the blowing pipes (30) are connected with a blowing fan (8), and the suction pipe (24) connected with the cooling fan (46) is also arranged at the top of the secondary cooling box (31); a plurality of clapboards (43) are arranged in the oven (12), the clapboards (43) divide the oven (12) into a plurality of sections of drying areas, inlets (41) for the conveying chain wheels (18) to pass through are formed in the left side wall and the right side wall of each clapboard (43) and the oven (12), heaters (45) are arranged below the inlets (41) of each section of drying area, a uniform distribution plate (50) is arranged at the lower end of each heater (45), air holes are uniformly formed in the uniform distribution plate (50), air distribution pipes (40) in the front-back direction are arranged below the uniform distribution plates (50), air outlet holes are uniformly formed in the outer walls of the air distribution pipes (40), conveying pipes (51) are fixed at the bottom ends of the air distribution pipes (40), air speed adjusting valves (49) are arranged on the conveying pipes (51), air guide pipes (48) are fixed at the bottoms of the conveying pipes (51), one ends of the air guide pipes (48) are fixedly connected with buffer tanks (44), one side of the upper portions of the buffer tanks (44) are connected with cooling fans (46) through pipelines, air inlets of the cooling fans (47), and the cooling fans (24) are connected with main pipelines; the outer end of the conveying chain (16) is uniformly provided with a plurality of clamping devices for clamping the edge of a film, each clamping device comprises a fixed clamping plate (54) fixed to the lower portion of the outer side of the conveying chain (16), a movable clamping plate (55) is arranged on the outer side above the fixed clamping plate (54), a guide rod (56) is fixed to the top of the movable clamping plate (55), a guide sleeve (57) is sleeved on the outer side of the guide rod (56), a spring (58) sleeved on the guide rod (56) is arranged in the lower portion of the guide sleeve (57), a second connecting rod (59) is hinged to the top of the guide rod (56), a third connecting rod (61) is hinged to the top of the second connecting rod (59), a rotating sleeve (64) is fixedly connected to the top of the third connecting rod (61), the rotating sleeve (64) is rotatably mounted on a pin shaft, the pin shaft is fixed to the supporting plate (62), an opening driving rod (63) is fixed to the upper portion of the rotating sleeve (64), and a driving disc (17) for shifting the opening driving rod (63) to lift the movable clamping plate (55) is arranged at the top of a conveying chain wheel (18) at two ends of the conveying chain (16); the inner side of the support plate (62) is provided with a clamping protrusion (65), the outer side of the upper portion of the conveying chain (16) is provided with a clamping groove matched with the clamping protrusion (65), the clamping protrusion (65) is fixed on the conveying chain (16) through a locking bolt (52), the inner side of the guide sleeve (57) is fixed with a fourth connecting rod (60), and the upper end of the fourth connecting rod (60) is fixed on the support plate (62).

2. The PTFE electronic film production tentering apparatus of claim 1, wherein: the frame is including upper and lower two sets of crossbeams, be fixed with many longerons (1) between upper and lower two sets of crossbeams, frame left end upper portion is equipped with two horizontally support frame board (32), the left end of support frame board (32) rotates and installs conveying sprocket (18) of drive conveyor chain (16), conveying sprocket (18) are connected with conveyer motor, the both ends bottom of support frame board (32) is fixed with can be at longeron (1) top rolling backing roll (39) and can be at uide bushing (38) of longeron (1) last sliding guide, uide bushing (38) are fixed through connecting rod (37) with support frame board (32), be fixed with regulation rack (2) on longeron (1), regulation rack (2) meshing has regulation gear (3), regulation gear (3) fixedly connected with regulation motor one, regulation motor one passes through support (4) fixed connection support frame board (32).

3. The PTFE electronic film production tentering apparatus of claim 2, characterized in that: the left side of oven (12) is equipped with two and is the expansion supporting beam (26) of outer splayed form, the both ends bottom of expansion supporting beam (26) is equipped with adjusting nut (25), adjusting nut (25) are connected with adjusting screw (13), the other end of adjusting screw (13) passes oven (12) and is connected with adjusting motor two (11), the right-hand member of oven (12) is equipped with two parallel support crossbearers (29), the cover has support sliding sleeve (22) that can slide around on longeron (1) of rightmost end, support sliding sleeve (22) top is rotated and is installed drive conveyor chain (18) of conveying chain (16) other end, conveyor chain (18) fixedly connected with conveyor motor, support crossbearer (29) right-hand member is fixed with support sliding sleeve (22), the right side of support sliding sleeve (22) is fixed with adjusting motor three (14), adjusting motor three (14) fixedly connected with adjusting gear two, adjusting gear two meshes the adjusting rack two (20) that has vertical setting, adjusting rack two (20) right-hand member is fixed with installation crossbeam (19), installation crossbeam (19) is fixed on, support sliding sleeve (29) is connected with adjusting screw (23), adjusting screw (23) passes adjusting screw (15) bottom two adjusting screw (23), adjusting screw (15) of adjusting screw.

4. The PTFE electronic film production tentering apparatus of claim 3, characterized in that: guide grooves (27) are formed in the inner sides of the support frame plate (32), the unfolding support beam (26) and the support cross frame (29), rolling bearings (53) capable of rolling in the guide grooves are arranged in the guide grooves (27), and the rolling bearings (53) are rotatably installed at the bottom of the outer side of the conveying chain wheel (18).

5. The PTFE electronic film production tentering apparatus of claim 4, wherein: the outer end inner side of the cooling box (10) at the left end and the right end is provided with a guide chain wheel (9), the guide chain wheel (9) is rotatably installed on the cross beam, the outer end of the guide chain wheel (9) is provided with a tension chain wheel (7), the tension chain wheel is rotatably installed on the adjusting support rod (5), the outer side of the adjusting support rod (5) is sleeved with an adjusting support sleeve (6), and the adjusting support sleeve (6) is provided with a locking bolt (52).

6. The PTFE electronic film production tentering apparatus of claim 5, wherein: the outer side of the blowing pipe (30) is fixedly connected with an air delivery pipe (28), and the air delivery pipe (28) is connected with a blowing fan (8).

7. The PTFE electronic film production tentering apparatus of claim 6, wherein: the top of the first adjusting nuts (25) at two ends is fixed with a rotating rod (33), the top end of the rotating rod (33) is rotatably installed at the bottom of the expanded supporting beam (26), the bottom of the first adjusting nuts (25) at two ends is fixed with a first guide sliding sleeve (34) sleeved on the longitudinal beam (1), the top of the second adjusting nuts (23) is fixed with a fixing rod (35), the top of the fixing rod (35) is fixed with the bottom of the left end of the supporting cross frame (29), and the bottom of the second adjusting nuts (23) is fixed with a second guide sliding sleeve (36) sleeved on the longitudinal beam (1).

8. The PTFE electronic film production tentering apparatus of claim 7, wherein: and the outer sides of the drying oven (12) and the cooling box (10) are both provided with heat-insulating layers (42).