CN101905819B - Feeding mechanism for feeding polytetrafluoroethylene membrane into chain clamping device - Google Patents
Feeding mechanism for feeding polytetrafluoroethylene membrane into chain clamping device Download PDFInfo
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- CN101905819B CN101905819B CN 201010229452 CN201010229452A CN101905819B CN 101905819 B CN101905819 B CN 101905819B CN 201010229452 CN201010229452 CN 201010229452 CN 201010229452 A CN201010229452 A CN 201010229452A CN 101905819 B CN101905819 B CN 101905819B
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Abstract
The invention provides a feeding mechanism for horizontal extension production of polytetrafluoroethylene filter membrane, which has stable and reliable tension and speed, flat and no-damaged feeding via a longitudinal extension base band, and simple operation. The feeding mechanism comprises a supporting plate arranged between opposite static clamping plates, a pressure plate is arranged above the supporting plate, and clearance through which the polytetrafluoroethylene membrane can pass is arranged between the pressure plate and the supporting plate; the feeding mechanism further comprises an unwinding device for feeding the polytetrafluoroethylene membrane into the clearance with constant linear speed and constant tension; and two pairs of shearing rolls positioned at two sides of the polytetrafluoroethylene membrane are arranged between the unwinding device and the supporting plate, wherein each pair of shearing rolls is composed of an upper roll and a lower roll which are used for clamping a side part of the polytetrafluoroethylene membrane and parallel to each other.
Description
Technical field
The present invention relates to the horizontal intake mechanism that draws production of poly tetrafluoroethylene, belong to the manufacturing field of processing and manufacturing technical field, especially air filtration, clothes film and the water filtration poly tetrafluoroethylene of polytetrafluoroethylene (PTFE) miillpore filter.
Background technology
For the polytetrafluoroethylene (PTFE) miillpore filter; The way of many both at home and abroad employing biaxial tensiones is made; Its master operation is following: at first polytetrafluorethylepowder powder is proportioned into the paste shape with proper auxiliary agent oil, process cylindrical blank through blank shaper, put the machine of pushing into and under certain pressure, be extruded into the cylindric of certain diameter; Get into calender through guider and be pressed into calendared sheet, then through degreasing, vertically draw, planar structure that horizontal pull-shaped one-tenth microporous poly tetrafluoroethylene is bidimensional.Because the poly tetrafluoroethylene fabric width of producing at present both at home and abroad is many at 1～3 meter, the horizontal homogeneity of film is difficult to guarantee, and along with the increase of fabric width, inhomogeneity control difficulty is just bigger.Base band is carried out in the horizontal horizontal drawing device that draws; Has the chain pincers device that is used to clamp the base band dual-side; Chain pincers device comprises along the unit center line and is oppositely arranged on movably two chains on the base, on two chains relative chain pincers is set, and the chain pincers comprises quiet pincers plate and moving pincers plate; On frame, also be provided with and close the pincers device; When moving pincers plate when closing the pincers device and contact, close the pincers device and promote moving pincers plate action, and make the chain pincers closed, relative chain pincers is set on such two chains just clamps the base band of being sent into by intake mechanism.The purpose of intake mechanism will be sent into base band in the chain pincers device exactly, prepares for the chain pincers clamps base band.
The horizontal intake mechanism of researching and producing both at home and abroad at present that draws of poly tetrafluoroethylene; Mostly only comprise a unwinding device with can the inside and outside feeding mouth of regulating; Skew about the uncontrollable base band of its shortcoming, because of binding dust with the static base band is prone to crumple, crimping, scratch, and because the chain pincers is to realize the base band clamping by gravity fall; Can't really realize clamping and put forth effort evenly, what be prone to film takes off pincers and hole.And because staff, very easily causes the base band damage to contact, the stretching of base band.So just can't produce thickness, the evenly accurate controlled poly tetrafluoroethylene in aperture, and production efficiency is low, cost is high, and labor strength is big.
Summary of the invention
The purpose of this invention is to provide a tension force, velocity-stabilization is reliable, vertical smooth, the not damaged of base band feeding, the horizontal intake mechanism that draws production of teflon membrane filter simple to operate of drawing.
The objective of the invention is to realize like this:
Of the present invention poly tetrafluoroethylene is fed the intake mechanism in the chain pincers device, said chain pincers device comprises the chain pincers 12 that is oppositely arranged along the unit center line, and chain pincers 12 comprises quiet pincers plate and moving pincers plate; Said intake mechanism comprises the supporting plate 7 that is arranged between the relative quiet pincers plate, above supporting plate 7, is provided with pressing plate 5, and the gap that supplies poly tetrafluoroethylene to pass through is arranged between pressing plate 5 and the supporting plate 7; Said intake mechanism comprises the unwinding device that is used for poly tetrafluoroethylene is sent into the permanent tension force of permanent linear speed said gap; Be provided with two pairs of cut rolls 4 that are positioned at the poly tetrafluoroethylene both sides between unwinding device and the supporting plate 7, the every pair of cut roll 4 is by being used to clamp the top roll 41 poly tetrafluoroethylene sidepiece, that parallel and lower roll 42 is formed.
Beneficial effect of the present invention: the permanent tension force unwinding device of permanent linear speed unreels base band and carries out permanent Tension Control; Utilize 4 pairs of vertical both sides of base band of drawing of two pairs of cut rolls to carry out the flattening of tensioning broadening; Utilize 5 pairs of supporting plate 7 and pressing plates vertical draw base band support with and avoid base band to upper process, guaranteed that the vertical base band edge that draws extends and do not bounce back to the pincers mouth of chain pincers 12.Like this, base band is promptly sent in the chain pincers 12 in tension force and speed stably with being flattened, has avoided the damage of base band.
For described intake mechanism, the top roll 41 and the axis of lower roll 42 and the angle of unit center line are 60 °-90 °.Be positioned at the axis (being the axis of top roll or lower roll) of two pairs of cut rolls 4 of base band both sides and the angle of unit center line through adjusting; Can regulate 4 pairs of vertical tensioning broadenings of base band both sides that draw of cut roll and flatten effect, and make base band to be admitted in the chain pincers 12 along the unit center line.
For described intake mechanism, pressing plate 5 is made up of the high pars intermedia in centre, the low overlap portion in both sides; Gap b=0.01～the 2mm of overlap portion and supporting plate 7.High, the low structure in both sides in the middle of the pressing plate 5 make that the resistance of base band operation is moderate, and base band can not torn; The less gap of overlap portion and supporting plate 7 has guaranteed the smooth of base band both sides simultaneously, makes base band more entirely be admitted in the chain pincers 12 of both sides.Width c=1～the 3cm of every side overlap portion, pars intermedia is than the high e=2～5mm of overlap portion.
For described intake mechanism, about supporting plate 7 comprises two, be symmetrical set along the unit center line; Between two blocks of supporting plates distance is arranged.Like this, can adjust the gap length between two blocks of supporting plates according to different baseband widths, thereby make the width of supporting plate 7 and baseband width adapt.
For described intake mechanism, supporting plate 7 is at the length f=1～2.5m that extend on the unit centerline direction between the relative quiet pincers plate.Such length can guarantee that base band was effectively launched, flattening before being clamped by the chain pincers.
For described intake mechanism, unwinding device comprise unreel motor, with unreel let off roll 1, two ends that motor links to each other be provided with respectively counterweight 8 and floating roller 9 the fork that can swing 17, be used to detect the angular displacement sensor of fork 17 pendulum angles; The output of angular displacement sensor connects the frequency converter that control unreels motor speed; Floating roller 9 and let off roll 1 contact with poly tetrafluoroethylene between the cut roll 4.This unwinding device belongs to prior art, utilizes angular displacement sensor that base band is unreeled and carries out permanent Tension Control.
For described intake mechanism, floating roller 9, top roll 41, lower roll 42, pressing plate 5, supporting plate 7 all adopt the material of antiseized antistatic to process with the position of poly tetrafluoroethylene.Like this, can prevent that base band is bonded on the above-mentioned parts, also can prevent Electrostatic Absorption.
Description of drawings
Fig. 1 is the sketch map of intake mechanism of the present invention
Fig. 2 is the schematic top plan view in user mode such as pressing plate of the present invention, supporting plate, cut roll
Fig. 3 is the sketch map of chain pincers and pressing plate of the present invention, supporting plate etc.
Fig. 4 is the side view (analysing and observe) of chain pincers and pressing plate of the present invention, supporting plate etc.
The specific embodiment
To of the present invention be that an embodiment is following.
Referring to Fig. 1,2,4, intake mechanism comprises the supporting plate 7 that is arranged between the relative quiet pincers plate 16, above supporting plate 7, is provided with pressing plate 5.Pressing plate 5 is made up of the low overlap portion 52 in centre high pars intermedia 52, both sides.Gap b=0.01～the 2mm of overlap portion and supporting plate 7.Width c=1～the 3cm of every side overlap portion, pars intermedia is than the high e=2～5mm of overlap portion.The shaped somewhat of pressing plate 5 is " several " font, and pars intermedia is slightly high, is beneficial to indulge and draws base band to pass; The overlap portion on both sides works to flatten the base band both sides and base band is sent into chain pincers 12 pincers mouths.
Have the gap between pressing plate 5 and the supporting plate 7, intake mechanism also comprises the unwinding device that is used for poly tetrafluoroethylene (base band) 10 is sent into the permanent tension force of permanent linear speed said gap.
Unwinding device comprise unreel motor, with unreel let off roll 1 that motor links to each other, guide rollers 2, backing roll 3, counterweight roller 8, floating roller 9, fork 17 or the like.Fork 17 two ends are provided with counterweight roller 8 and floating roller 9 respectively, and can be around fulcrum 18 swings.The output that is used to detect the angular displacement sensor of fork pendulum angle connects the frequency converter that control unreels motor speed, unreels the constant of speed with control.Weight through regulating counterweight roller 8 realizes the constant of tension force.
Every pair of cut roll 4 is made up of top roll that parallels 41 and lower roll 42, between top roll 41 and the lower roll 42 tension spring is set, and can regulate the clamping force of top roll 41 and 42 pairs of poly tetrafluoroethylenes of lower roll through tension spring.The angle of the axis of top roll or lower roll and unit center line is a=60 °-90 °, regulates according to the thickness of Different products and base band and the actual effect of use.
The base band 10 of being emitted by let off roll 1 gets between the top roll 41 and lower roll 42 of two pairs of cut rolls 4 that are arranged on the base band both sides behind guide rollers 2, floating roller 9, backing roll 3, then, is admitted to the gap between pressing plate 5 and the supporting plate 7.
Supporting plate 7 comprises 72 two of left supporting plate 71, right supporting plates, and two blocks of supporting plates are symmetrical set along unit center line h; Between two blocks of supporting plates distance is arranged.Left side supporting plate 71, right supporting plate 72 are at the length f=1～2.5m that extend on the unit centerline direction between the relative quiet pincers plate 16.Planker 7 gets between the relative chain pincers along the motion track of chain pincers 12 fully, and length is at 1～2.5m.Can guarantee like this to draw base band to play abundant support, avoid vertical draw base band and 12 slippages of chain pincers vertical.
All adopt antiseized antistatic material with vertical surface of drawing base band to contact guide rollers 2, backing roll 3, floating roller 9, cut roll 4, pressing plate 5, supporting plate 7 etc.A left side supporting plate 71, right supporting plate 72 are screwed respectively on base, and screw places in the chute, can regulate moving up and down of left supporting plate 71, right supporting plate 72.
Chain pincers device belongs to and has mechanism, and it comprises being oppositely arranged on 19, two chains of two chains on the rotating disk 11 on the base 20 along the unit center line relative chain pincers 12 is set that the chain pincers comprises quiet pincers plate 16 and moving pincers plate 21; On frame, also be provided with and close pincers device 6.Rotating disk 11 rotates, and drives chain 19 and moves, and chain 19 drives chain pincers 12 and moves, and when moving to moving pincers plate and closing the pincers device and contact, closes pincers device 6 and promotes to move the pincers plate and move, and make chain pincers 12 closures, and base band is clamped between quiet pincers plate 16 and the moving pincers plate 21.Close pincers device 6 upper ends and be fixed on the support cover plate with screw 14, the lower end is suspended from chain pincers 12 inboards.Closing pincers device 6 lower end materials is silica gel.
The vertical base band of drawing flattens and bracing or strutting arrangement, is made up of cut roll 4, pressing plate 5, supporting plate 7 three parts.Each is a pair of for cut roll about 4, realizes that by tension spring every group of cut roll flattens the broadening of base band.Cut roll 4 is spent with angle a=60～90 of unit center line.
The present invention utilizes angular displacement sensor that base band is unreeled to carry out permanent Tension Control; Utilizing 4 pairs of two pairs of cut rolls to indulge draws base band to carry out tensioning, broadening, flattening; Utilizing 5 pairs of supporting plate 7 and pressing plates to indulge draws the base band mid portion to support and the undue projection of avoiding making progress; Make the vertical base band edge that draws extend and do not bounce back, utilize and close pincers device 6 and realize vertical clamping of drawing the base band both sides that track space can draw the base band fabric width to utilize leading screw that rail turntable 11 is regulated according to vertical to chain pincers 12 pincers mouths.Base band is in the process of feeding; Can not occur crumpling, crimping, scratch, take off phenomenon such as pincers, realize vertical even running of drawing base band, improve the yield rate that poly tetrafluoroethylene is produced; Reduce cost, improve the aperture uniformity of poly tetrafluoroethylene and the uniformity of mechanical property.The present invention has realized that the vertical permanent linear speed of permanent tension force of base band that draws unreels; Realized vertical no skew, not damaged, no wrinkle, no crimping, unpolarized stable feeding of drawing base band through cut roll, pressing plate, the planker of anti-binding dust antistatic; Accurately regulate vertical clamping degree of drawing base band through closing the pincers device, guarantee that stressed even nothing is damaged.Thereby realize drawing the high accuracy of production, simple, stable control to poly tetrafluoroethylene is horizontal.
The selected vertical specification of base band volume of drawing is: fabric width 170mm, and diameter 318.5mm, base band thickness 117mm, volume core length is 270mm, and volume core length is 270mm, and the volume core diameter is 89mm.It is mounted on the let off roll, and the adjustable track width is to 150mm, and overlap portion and the gap between the supporting plate 7 of regulating pressing plate 5 are 1.19mm.To indulge and draw base band to pass two guide rollers 2, floating roller 10, backing roll 3 successively; Lift the top roll of two pairs of cut rolls 4 then; To indulge and draw base band the right and left to penetrate, again top roll pressed, along the gap between smooth entering pressing plate 5 of the direction of arrow among Fig. 1 and the supporting plate 7 to send into track; Close pincers device 6 and close behind the pincers base band both sides are clamped, send into horizontal drawing in the body of heater with 12 runnings of chain pincers.The polytetrafluoroethylene (PTFE) film thickness is 2 ± 0.5 μ m, aperture 1.25 ± 0.25 μ m.
Claims (7)
1. one kind feeds the intake mechanism in the chain pincers device with poly tetrafluoroethylene, and chain pincers device comprises the chain pincers (12) that is oppositely arranged along the unit center line, and chain pincers (12) comprises quiet pincers plate and moving pincers plate; It is characterized in that: intake mechanism comprises the supporting plate (7) that is arranged between the relative quiet pincers plate, is provided with pressing plate (5) in supporting plate (7) top, and the gap that supplies poly tetrafluoroethylene to pass through is arranged between pressing plate (5) and the supporting plate (7); It also comprises the unwinding device that is used for poly tetrafluoroethylene is sent into the permanent tension force of permanent linear speed said gap; Be provided with the two pairs of cut rolls (4) that are positioned at the poly tetrafluoroethylene both sides between unwinding device and the supporting plate (7), every pair of cut roll (4) is by being used to clamp the top roll poly tetrafluoroethylene sidepiece, that parallel (41) and lower roll (42) is formed; Pressing plate (5) is made up of the high pars intermedia in centre, the low overlap portion in both sides; Gap b=0.01～the 2mm of overlap portion and supporting plate (7).
2. intake mechanism as claimed in claim 1 is characterized in that: the axis of top roll (41) and lower roll (42) and the angle of unit center line are 60 °-90 °.
3. intake mechanism as claimed in claim 1 is characterized in that: the width c=1～3cm of every side overlap portion, pars intermedia is than the high e=2～5mm of overlap portion.
4. intake mechanism as claimed in claim 1 is characterized in that: about supporting plate (7) comprises two, be symmetrical set along the unit center line; Between two blocks of supporting plates distance is arranged.
5. intake mechanism as claimed in claim 1 is characterized in that: supporting plate (7) is at the length f=1～2.5m that extend on the unit centerline direction between the relative quiet pincers plate.
6. intake mechanism as claimed in claim 1 is characterized in that: unwinding device comprise unreel motor, with unreel let off roll (1), two ends that motor links to each other be provided with respectively counterweight (8) and floating roller (9) the fork that can swing (17), be used to detect the angular displacement sensor of fork (17) pendulum angle; The output of angular displacement sensor connects the frequency converter that control unreels motor speed; Floating roller (9) and let off roll (1) contact with poly tetrafluoroethylene between the cut roll (4).
7. intake mechanism as claimed in claim 6 is characterized in that: the position that floating roller (9), top roll (41), lower roll (42), pressing plate (5), supporting plate (7) contact with poly tetrafluoroethylene all adopts the material of antiseized antistatic to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010229452 CN101905819B (en) | 2010-07-16 | 2010-07-16 | Feeding mechanism for feeding polytetrafluoroethylene membrane into chain clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010229452 CN101905819B (en) | 2010-07-16 | 2010-07-16 | Feeding mechanism for feeding polytetrafluoroethylene membrane into chain clamping device |
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| Publication Number | Publication Date |
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| CN101905819A CN101905819A (en) | 2010-12-08 |
| CN101905819B true CN101905819B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010229452 Active CN101905819B (en) | 2010-07-16 | 2010-07-16 | Feeding mechanism for feeding polytetrafluoroethylene membrane into chain clamping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103144989A (en) * | 2013-03-07 | 2013-06-12 | 金红叶纸业集团有限公司 | Automatic sheet transmission tension adjustment device and sheet post-processing system |
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| CN104175583A (en) * | 2014-07-30 | 2014-12-03 | 山东金宇实业股份有限公司 | Apex bonding production line |
| CN108407255B (en) * | 2018-04-12 | 2024-03-01 | 国材(苏州)新材料科技有限公司 | Feeding regulator of screw extruder |
| CN111453511B (en) * | 2020-04-09 | 2022-02-15 | 南京安顺自动化装备有限公司 | Guide roller arrangement device of splitting machine and film running method |
| CN113001855B (en) * | 2021-03-03 | 2022-11-25 | 浙江世鼎橡胶工业有限公司 | Rolling machine is used in production of sealed diaphragm |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5970589A (en) * | 1997-09-11 | 1999-10-26 | Hitachi, Ltd. | Simultaneous biaxial stretching apparatus and method |
| JP2004106422A (en) * | 2002-09-19 | 2004-04-08 | Fuji Photo Film Co Ltd | Tenter apparatus |
| JP4724481B2 (en) * | 2005-07-01 | 2011-07-13 | 出光ユニテック株式会社 | Biaxially stretched film manufacturing method and biaxially stretched film manufacturing apparatus |
| JP5448413B2 (en) * | 2007-12-27 | 2014-03-19 | ヒラノ技研工業株式会社 | Film overfeed device and film stretching machine |
| JP5292040B2 (en) * | 2008-09-30 | 2013-09-18 | 富士フイルム株式会社 | Film stretching apparatus and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144989A (en) * | 2013-03-07 | 2013-06-12 | 金红叶纸业集团有限公司 | Automatic sheet transmission tension adjustment device and sheet post-processing system |
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| CN101905819A (en) | 2010-12-08 |
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Effective date of registration: 20160420 Address after: Off road 277500 in Shandong province Zaozhuang city Tengzhou Economic Development Zone No. 996 Patentee after: Sinoma science and Technology (Shandong) Co., Ltd. membrane materials Address before: Jiangning District of Nanjing City, Jiangsu province 211100 Jiangning Science Park Tong Road No. 99 Patentee before: Zhongcai Science & Technology Co., Ltd. |