阅读说明：本技术 一种平板式刮膜装置 (Flat-plate film scraping device ) 是由 樊凯 于 2020-07-31 设计创作，主要内容包括：本发明涉及膜制备领域,公开了一种平板式刮膜装置,包括卷帘机构,卷帘机构包括释放辊、收卷辊、导向辊和张紧辊,释放辊和收卷辊均转动连接于机架,释放辊的圆周壁上缠绕有载体,载体远离释放辊的一端绕过导向辊和张紧辊后与收卷辊相连,导向辊转动连接于工作台的两侧,导向辊的底端与工作台之间的距离等于载体的厚度,张紧辊的两端均同轴转动连接有套环,套环固定连接有竖向设置的伸缩杆,伸缩杆的外周套设有弹性件Ⅰ,工作台的侧壁固定连接有支撑板,伸缩杆的底端与支撑板相连,弹性件Ⅰ的两端分别与套环、支撑板相抵。本发明中,能够快速更换工作台上的载体,避免工作人员拆卸旧载体后再安装新载体,从而提高制膜效率。(The invention relates to the field of film preparation, and discloses a flat plate type film scraping device which comprises a rolling mechanism, wherein the rolling mechanism comprises a releasing roller, a winding roller, a guide roller and a tensioning roller, the releasing roller and the winding roller are both rotationally connected to a rack, a carrier is wound on the circumferential wall of the releasing roller, one end, far away from the releasing roller, of the carrier is connected with the winding roller after bypassing the guide roller and the tensioning roller, the guide roller is rotationally connected to two sides of a workbench, the distance between the bottom end of the guide roller and the workbench is equal to the thickness of the carrier, two ends of the tensioning roller are coaxially and rotationally connected with a sleeve ring, the sleeve ring is fixedly connected with a vertically arranged telescopic rod, an elastic piece I is sleeved on the periphery of the telescopic rod, a support plate is fixedly connected to the side wall of the workbench, the bottom end of the telescopic rod is connected with the support plate. According to the invention, the carrier on the workbench can be quickly replaced, and the situation that a worker installs a new carrier after detaching an old carrier is avoided, so that the film making efficiency is improved.)

1. The utility model provides a flat knifing device, includes frame, workstation and knifing mechanism, its characterized in that: still include roll up curtain mechanism, roll up curtain mechanism including release roller, wind-up roll, guide roll and tensioning roller, release roller and wind-up roll all rotate to be connected in the frame, the winding has the carrier on the circumference wall of release roller, the carrier is kept away from the one end of release roller and is walked around behind the circumference wall of guide roll and tensioning roller and the circumference wall of wind-up roll links to each other, the guide roll rotates the both sides of connecting in the workstation, the distance between the bottom of guide roll and the workstation equals the thickness of carrier, the equal coaxial rotation in both ends of tensioning roller is connected with the lantern ring, the telescopic link of the vertical setting of lantern ring fixedly connected with, the periphery cover of telescopic link is equipped with elastic component I, the lateral wall fixedly connected with backup pad of workstation, the bottom and the backup pad of telescopic link to each other, the both ends of elastic component.

2. The flat blade type film scraping device according to claim 1, wherein: the equal coaxial fixedly connected with pivot I in both ends of release roller, the equal coaxial fixedly connected with pivot II in both ends of wind-up roll offer the mounting hole I that is used for installing pivot I in the frame and the mounting hole II that is used for installing pivot II, the internal perisporium fixedly connected with friction disc of mounting hole I, the periphery wall and the friction disc of pivot I are inconsistent tight, and fixed mounting has one-way bearing in the mounting hole II, pivot II and the coaxial fixed connection of one-way bearing.

3. The flat blade type film scraping device according to claim 2, wherein: the film scraping mechanism comprises an installation support, a telescopic cylinder, a film scraping seat and a traction rod, the bottom end of the installation support is fixedly connected with the side wall of the workbench, the telescopic cylinder is installed on the installation support, the output end of the telescopic cylinder is fixedly connected with the traction rod, the bottom end of the traction rod is fixedly connected with the film scraping seat, a groove is formed in the bottom of the film scraping seat, a slide plate is vertically slidably connected into the groove, a film scraping knife is fixedly connected with the bottom wall of the slide plate, a plurality of elastic pieces II are arranged between the slide plate and the top wall of the groove, two ends of the elastic pieces II are respectively fixedly connected with the slide plate and the top wall of the groove, a thread adjusting rod vertically arranged is in the thread scraping seat, and.

4. A flat blade type film scraping device according to claim 3, wherein: the workbench is positioned in the water tank, the bottom wall of the water tank is fixedly connected with an inflatable air bag, the inflatable air bag is communicated with an inflation tube and an air release tube, one end, far away from the inflatable air bag, of the inflation tube is connected with an inflation pump, and the air release tube is provided with an air release valve.

5. The flat blade type film scraping device according to claim 4, wherein: the mounting bracket is fixedly provided with a piston cylinder, a piston is connected to the inside of the piston cylinder in a horizontal sliding manner, the piston seals the inner space of the piston cylinder into a cavity, the piston is fixedly connected with a special-shaped piston rod, and one end of the piston rod, which is far away from the piston, is fixedly connected with the traction rod; the cavity of the piston cylinder is communicated with an air inlet pipe, an air outlet pipe and an air release pipe, the air inlet pipe is provided with a first one-way valve for guiding air into the cavity, the air outlet pipe is provided with a second one-way valve for guiding air out of the cavity, and the air release pipe is provided with an air release valve; the film scraping seat is characterized in that a cavity is formed in the film scraping seat, a plurality of air outlet holes communicated with the cavity are formed in the bottom of the film scraping seat, the air outlet pipe is communicated with an air supply hose, and one end, far away from the air outlet pipe, of the air supply hose is communicated with the cavity.

6. The flat blade type film scraping device according to claim 5, wherein: and the heating wire is fixedly arranged in the cavity.

7. A device according to claim 5 or 6, characterized in that: the air outlet pipe is positioned at the top of the piston cylinder.

8. The flat blade type film scraping device according to claim 2, wherein: the friction plate is a rubber plate.

9. The flat blade type film scraping device according to claim 2, wherein: and the end part of the rotating shaft II is fixedly connected with a handle.

10. A device according to claim 5 or 6, characterized in that: the exhaust vent sets up in the slope, and the exhaust vent that is located recess one side is opposite with the inclination direction that is located the exhaust vent of recess opposite side.

Technical Field

The invention relates to the field of film preparation, in particular to a flat plate type film scraping device.

Background

The ultrafiltration membrane is a microporous filtration membrane with the pore size specification being consistent and the rated pore size range being 0.001-0.02 mu m, solute molecules smaller than the pore size can be screened out by applying proper pressure on one side of the membrane so as to separate particles with the molecular weight being more than 500 daltons and the particle size being more than 10 nm.

At present, a flat ultrafiltration membrane used on a household water purifier is formed by a flat membrane scraping machine, and is mainly characterized in that after non-woven fabrics or other carriers are laid on a workbench of the membrane scraping machine, a membrane making solution is uniformly and flatly spread on the non-woven fabrics or other carriers by utilizing a membrane scraping mechanism, after membrane scraping is completed, the whole membrane body is flatly immersed in water for solidification, and finally, the membrane body is sent to be dried. In the process, before each membrane making, the non-woven fabric or other carriers need to be flatly laid on the workbench, the non-woven fabric or other carriers need to be fixed, when the non-woven fabric or other carriers are taken down, the carriers need to be removed after the fixation of the carriers is firstly released, the operation is troublesome, and the membrane making efficiency is reduced.

Disclosure of Invention

The invention aims to provide a flat-plate film scraping device, which solves the problem of low film forming efficiency caused by the trouble of carrier installation and removal operations of the conventional flat-plate film scraping device.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a flat knifing device, includes frame, workstation and knifing mechanism, still includes a roll curtain mechanism, it includes release roller, wind-up roll, guide roll and tensioning roller to roll up curtain mechanism, and release roller and wind-up roll all rotate to be connected in the frame, and the winding has the carrier on the circumference wall of release roller, and the carrier is kept away from the one end of release roller and is linked to each other with the circumference wall of wind-up roll after the circumference wall of guide roll and tensioning roller, and the guide roll rotates and connects in the both sides of workstation, and the distance between the bottom of guide roll and the workstation equals the thickness of carrier, the equal coaxial rotation in both ends of tensioning roller is connected with the lantern ring, the telescopic link of the vertical setting of lantern ring fixedly connected with, and the periphery cover of telescopic link is equipped with elastic component I, and the lateral wall fixedly connected with backup pad of workstation, the bottom of telescopic link to each other with.

The principle and the advantages of the scheme are as follows: during the in-service use, utilize the guide roll in rolling up curtain mechanism, make the carrier tiling on the workstation, and utilize the tensioning roller in rolling up curtain mechanism with the carrier tensioning, make the carrier be in the state of tightening, and elastic component I and telescopic link can avoid the carrier to tighten the degree too big and take place the tearing condition, in addition, in this scheme, only need avoid release roller and wind-up roll to change can with the carrier tiling and be fixed in the workstation on, make things convenient for subsequent membrane process, easy operation. Moreover, after the film making is completed, when the film making is needed for the next time, the new carrier can be tiled and fixed on the workbench only by rotating the winding roller and driving the carrier to move, so that the film making is performed for the next time quickly, the operation is simple and rapid, the new carrier is prevented from being installed again and fixed, and the film making efficiency is greatly improved.

Preferably, as an improvement, the equal coaxial fixedly connected with pivot I in both ends of release roller, the equal coaxial fixedly connected with pivot II in both ends of wind-up roll offer the mounting hole I that is used for installing pivot I and the mounting hole II that is used for installing pivot II in the frame, the internal perisporium fixedly connected with friction disc of mounting hole I, the periphery wall and the friction disc of pivot I are balanced tight, fixed mounting has one-way bearing in the mounting hole II, pivot II and the coaxial fixed connection of one-way bearing.

In this scheme, utilize the friction disc increase release roller to rotate the resistance that the in-process received to make the release roller can not take place to rotate at carrier tensioning process and membrane manufacturing in-process, simultaneously, utilize one-way bearing to restrict the wind-up roll and can only follow a direction and rotate, even make the wind-up roll can only the rolling carrier, unable release carrier, thereby make the carrier be in the state of tightening, so that the membrane is made smoothly.

Preferably, as an improvement, the film scraping mechanism includes installing support, telescopic cylinder, scrapes membrane seat and traction lever, the bottom of installing support and the lateral wall fixed connection of workstation, and telescopic cylinder installs on the installing support, telescopic cylinder's output and traction lever fixed connection, the bottom and the film scraping seat fixed connection of traction lever, the bottom of scraping the membrane seat is seted up flutedly, and vertical sliding connection has the slide in the recess, and the diapire fixedly connected with of slide scrapes the membrane sword, is equipped with a plurality of elastic components II between the roof of slide and recess, and the both ends of elastic component II respectively with the roof fixed connection of slide, recess, scrape the thread adjusting lever of the vertical setting of membrane seat threaded connection, the bottom and the slide of thread adjusting lever offset.

In this scheme, utilize telescopic cylinder to drive and scrape membrane seat reciprocating motion to evenly spread out the membrane-making liquid on the carrier, and, in this scheme, owing to scrape membrane sword fixed connection on the slide, and the vertical sliding connection of slide is in the recess of scraping the membrane seat, can adjust the position of slide through the screw thread adjusting lever, thereby adjusts the height of scraping the membrane sword, and then prepares out the membrane body of different thickness.

Preferably, as an improvement, still include the basin, the workstation is located the basin, and the diapire fixedly connected with of basin aerifys the gasbag, aerifys the gasbag intercommunication and has gas tube and bleeding pipe, and the one end that gas tube kept away from aerifys the gasbag is connected with the pump, installs the bleed valve on the bleeding pipe.

In this scheme, fill water in advance in the basin to inject the liquid level and be less than the upper surface of workstation, after the membrane making of knifing mechanism is accomplished, utilize the pump to pass through the gas tube and aerify to aerifing the gasbag in, aerify the gasbag and expand gradually, make the liquid level rise, then, the carrier on the workstation is walked to the water in the basin, makes the carrier immerse the aquatic completely, thereby makes the membrane body on the carrier solidify in aqueous. After the film body is solidified, the air release valve on the air release pipe is opened, the volume of the inflatable air bag is reduced, the liquid level is lowered, and the carrier and the film body are exposed, so that the film body enters a drying procedure.

Preferably, as an improvement, a piston cylinder is fixedly installed on the installation support, a piston is movably connected to a horizontal surface in the piston cylinder, the piston seals an inner space of the piston cylinder into a chamber, the piston is fixedly connected with a special-shaped piston rod, and one end of the piston rod, which is far away from the piston, is fixedly connected with the traction rod; the cavity of the piston cylinder is communicated with an air inlet pipe, an air outlet pipe and an air release pipe, the air inlet pipe is provided with a first one-way valve for guiding air into the cavity, the air outlet pipe is provided with a second one-way valve for guiding air out of the cavity, and the air release pipe is provided with an air release valve; the film scraping seat is characterized in that a cavity is formed in the film scraping seat, a plurality of air outlet holes communicated with the cavity are formed in the bottom of the film scraping seat, the air outlet pipe is communicated with an air supply hose, and one end, far away from the air outlet pipe, of the air supply hose is communicated with the cavity.

In this scheme, after the film body solidification, rotate the screw thread regulation pole for the slide goes up under the effect of elastic component II, thereby makes the knifing sword shift up, avoids the knifing sword scratch film body. Then open telescopic cylinder once more, telescopic cylinder drives piston rod reciprocating motion to make piston reciprocating motion, the inside interior pressure of cavity constantly changes, inhales the air in the cavity of external back through the outlet duct discharge again, and finally blows to the diaphragm through the exhaust vent of scraping on the diaphragm seat, accelerates the velocity of flow of near the diaphragm air, thereby accelerates the drying rate of diaphragm.

Preferably, as an improvement, a heating wire is fixedly installed in the chamber.

In this scheme, the heating wire can heat the air in the cavity to make the air current that blows to the diaphragm from the exhaust vent be the hot gas flow, and then accelerate the drying rate of diaphragm.

Preferably, as a modification, the air outlet pipe is located at the top of the piston cylinder.

In this scheme, when the outlet duct was located the top of piston cylinder, the height of supplying gas hose was higher, can avoid supplying gas hose at the removal in-process scratch film body on the workstation.

Preferably, as an improvement, the friction plate is a rubber plate.

In this scheme, the sheet rubber has elasticity, and pivot I can insert in mounting hole I better.

Preferably, as an improvement, the end of the rotating shaft ii is fixedly connected with a handle.

In this scheme, the staff can comparatively easily rotate the wind-up roll through the handle.

Preferably, as an improvement, the exhaust vent is arranged obliquely, and the exhaust vent on one side of the groove is opposite to the exhaust vent on the other side of the groove in oblique direction.

In this scheme, compare in the vertical setting of exhaust vent, when the exhaust vent slope set up, can make the air current blow to the edge of the membrane body to dry the membrane body better.

Drawings

FIG. 1 is a front sectional view of a flat type film scraping device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a top view of FIG. 1 (without the film scraping mechanism);

FIG. 5 is a top view of a flat-plate type film scraping device according to a second embodiment of the present invention;

fig. 6 is a longitudinal sectional view of a doctor blade base according to a second embodiment of the invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a frame 1, a workbench 2, a water tank 3, a release roller 4, a wind-up roller 5, a guide roller 6, a tension roller 7, a one-way bearing 8, a handle 9, non-woven fabrics 10, a mounting plate 11, a lantern ring 12, an expansion rod 13, an elastic piece I14, a support plate 15, a mounting bracket 16, a telescopic cylinder 17, a film scraping seat 18, a traction rod 19, a groove 20, a sliding plate 21, a film scraping knife 22, an elastic piece II 23, a thread adjusting rod 24, an inflatable air bag 25, an inflatable pipe 26, an air release pipe 27, an inflator pump 28, an air release valve 29, a piston cylinder 30, a piston 31, a cavity 32, an electric heating wire 33, a piston rod 34, an air inlet pipe 35, an air release pipe 36, a.