CN110625865A - Heat setting and moisture regaining device for water-soluble polyvinyl alcohol film - Google Patents
Heat setting and moisture regaining device for water-soluble polyvinyl alcohol film Download PDFInfo
- Publication number
- CN110625865A CN110625865A CN201910887093.7A CN201910887093A CN110625865A CN 110625865 A CN110625865 A CN 110625865A CN 201910887093 A CN201910887093 A CN 201910887093A CN 110625865 A CN110625865 A CN 110625865A
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- China
- Prior art keywords
- box
- polyvinyl alcohol
- cotton
- fixedly connected
- alcohol film
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0092—Drying moulded articles or half products, e.g. preforms, during or after moulding or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/46—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a heat setting and moisture regaining device of a water-soluble polyvinyl alcohol film, which comprises a box body, a motor and a heating resistance wire, wherein the motor is fixedly connected to the outer side wall of the box body, the inner side wall of the box body is rotatably connected with a drying cylinder through a rotating shaft, the heating resistance wire is positioned in the drying cylinder, material conveying mechanisms are arranged on two sides of the drying cylinder, the material conveying mechanisms are rotatably connected to the inner side wall of the box body, the motor is in transmission connection with the material conveying mechanisms and the drying cylinder through a belt, smearing cotton is arranged on the top and the bottom of the box body, and the smearing cotton is matched with the material conveying mechanisms; the invention not only can heat and dry the polyvinyl alcohol film, but also can improve the heat dissipation efficiency of the polyvinyl alcohol film, and can automatically paint the anti-sticking agent on the roller, thereby avoiding the sticking of the polyvinyl alcohol film and bringing convenience to workers.
Description
Technical Field
The invention relates to the technical field of polyvinyl alcohol production equipment, in particular to a heat setting and moisture regaining device for a water-soluble polyvinyl alcohol film.
Background
The existing production equipment of polyvinyl alcohol films is basically produced by adopting a wet-process tape casting mode, the used equipment is basically a steel belt or a roller, the polyvinyl alcohol needs to be dissolved into a solution with the concentration of 20-30% in the production, a large amount of water in the polyvinyl alcohol needs to be evaporated during tape casting production to form a film with certain strength, the strength of the film is different due to different water contents, the film is low in strength and easy to tear when the film is stripped from the steel belt or the roller, the water content of the film in the production is relatively high, and the film is easy to be fragile to influence the use after the water content of the film is low to a certain degree in the subsequent drying process, so that many production enterprises use a low-temperature drying process for production, and a series of production and quality problems that the film is easy to adhere, the transverse and longitudinal performances of the rolled rib are seriously uneven and the like are.
The invention discloses a heat setting and moisture regaining device of a water-soluble polyvinyl alcohol film in Chinese invention patent with the publication number of CN207889120U, the device comprises a heat setting box body and a constant temperature and humidity box, a cold air device is arranged between the heat setting box body and the constant temperature and humidity box, the cold air device is arranged at the outlet of the heat setting box body, a heat setting oven comprises the heat setting box body, one group or two groups of drying rollers are arranged in the heat setting box body, the rollers are heated by adopting a heat conduction oil heating mode, each group of drying rollers are connected through a variable frequency motor, a variable speed motor and a belt, a plurality of guide rollers and a first flattening roller are arranged in the heat setting box body, the first flattening roller is arranged between the two groups of drying rollers, the two sides of the heat setting box body are also provided with an inlet and an outlet of the film, the top of the heat setting box body is provided with an exhaust outlet, one group or, the driving roller is driven by a motor, a speed changer and a chain or a belt to rotate.
Other anti-sticking material processing such as dull polish or surface spraying teflon of roller surface process among the device, although can prevent gluing of polyvinyl alcohol film, and wearing and tearing appear along with the live time's of roller extension in other anti-sticking material such as the teflon of surface dull polish or spraying, and when roller surface dull polish appeared wearing and tearing, then need not the roller to change, thereby can cause certain wasting of resources, if other anti-sticking material such as the teflon of roller surface spraying appeared wearing and tearing, need artifical manual other anti-sticking material such as teflon of spraying to the roller surface, it paints anti-sticking agent by oneself to be difficult to, it is inconvenient to have brought for the staff, for this reason we propose a water-soluble polyvinyl alcohol film's heat setting and moisture regain device and be used for solving above-mentioned problem.
Disclosure of Invention
The present invention is directed to a heat setting and moisture regaining apparatus for water-soluble polyvinyl alcohol film, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a heat setting and moisture regain device of water-soluble polyvinyl alcohol film, includes box, motor and heating resistor silk, motor fixed connection is on the lateral wall of box, it is connected with a stoving section of thick bamboo to rotate through the axis of rotation on the inside wall of box, the heating resistor silk is located inside the stoving section of thick bamboo, the both sides of stoving section of thick bamboo all are provided with defeated material mechanism, defeated material mechanism rotates and connects on the inside wall of box, the motor passes through the belt and is connected with defeated material mechanism, the transmission of stoving section of thick bamboo, the top and the bottom of box all are provided with paints the cotton, paint the cotton and match with defeated material mechanism.
Preferably, the opposite side walls of the box body are provided with strip-shaped through holes, and the strip-shaped through holes are matched with the material conveying mechanism.
Preferably, defeated material mechanism is including the cylinder that the symmetry set up, cylinder fixedly connected with dwang, the both ends of dwang are rotated and are connected on the inside wall of box.
Preferably, both ends of the drying cylinder are closed, the rotating shaft is fixedly connected to both ends of the drying cylinder, and one end of the rotating shaft, which is far away from the drying cylinder, is rotatably connected to the inner side wall of the cover body;
one of them the axis of rotation all runs through the lateral wall and the first belt pulley of fixedly connected with of box with the one end of dwang, fixedly connected with second belt pulley on the output shaft of motor, the belt cover is established on first belt pulley and second belt pulley.
Preferably, a containing cavity is formed in the rotating shaft, the heating resistance wire is fixedly connected to the inner side wall of the drying drum, and one end of the heating resistance wire penetrates through the side wall of the drying drum and extends into the containing cavity.
Preferably, the top fixedly connected with of box holds the box, the up end that holds the box runs through the roof of box and parallel and level mutually with the roof upper surface of box, is located the cotton fixed connection of paining at box top is on the lateral wall that holds the box, and paints cotton up end fixedly connected with bar cotton, the bar cotton is kept away from and is paintd a terminal surface of cotton and run through the lateral wall that holds the box and contact with the bottom that holds the box.
Preferably, the bottom plate lower surface of box is located the equal fixedly connected with bracing piece in four corners department, fixedly connected with carries the thing board on the lateral wall of bracing piece, it has placed and has carried the thing box to carry on the thing board, is located the bottom of smearing the cotton lower extreme of bottom half and carrying the thing box contacts, the upper end of smearing the cotton top of running through and carrying the top of thing box and the bottom of box and extending to in the box.
Preferably, fixedly connected with fan on box and the drying cylinder looks vertically lateral wall, the lateral wall that the drying cylinder was kept away from to the fan runs through the lateral part of box and with the lateral wall parallel and level of box, the ventilation hole has been seted up to the equidistance on the lateral wall that box and fan are relative.
Compared with the prior art, the invention has the beneficial effects that: the drying cylinder is arranged in the box body, so that drying treatment of the polyvinyl alcohol film is facilitated, the heating resistance wire is arranged in the drying cylinder, so that heating treatment of the drying cylinder is facilitated, the fan is arranged on one side of the drying cylinder, circulation of air in the box body can be increased, the heat dissipation efficiency of the polyvinyl alcohol film is improved, the rollers are arranged on two sides of the drying cylinder, so that input and output of the polyvinyl alcohol film are facilitated, the smearing cotton is arranged on one side of the drying cylinder, so that the anti-sticking agent is conveniently smeared on the rollers, and sticking of the polyvinyl alcohol film is avoided; this kind of heat setting and moisture regain device of water-soluble polyvinyl alcohol film not only can heat the stoving to the polyvinyl alcohol film, can improve the radiating efficiency of polyvinyl alcohol film simultaneously, can paint the antiseized agent to the cylinder by oneself moreover, avoids the gluing of polyvinyl alcohol film, has brought conveniently for the staff.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic front view of the internal structure of the present invention;
fig. 3 is a schematic view of the internal structure of the depression plane according to the present invention.
In the figure: 1 box, 11 bar through-holes, 12 carry the thing box, 13 hold the box, 14 bracing pieces, 15 carry the thing board, 16 fans, 17 ventilation holes, 2 motors, 21 second belt pulleys, 3 heating resistor silk, 4 drying cylinders, 5 defeated material mechanisms, 51 cylinders, 52 dwang, 6 belts, 7 axis of rotation, 71 first belt pulley, 72 hold the chamber, 8 paint cotton, 81 bar cotton.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a heat setting and moisture regain device of water-soluble polyvinyl alcohol film, the power distribution box comprises a box body 1, motor 2 and heating resistor silk 3, motor 2 is prior art with the theory of operation and the structure of heating resistor silk 3, the event is not repeated herein in detail, 2 fixed connection of motor are on the lateral wall of box, it is connected with drying cylinder 4 to rotate through axis of rotation 7 on box 1's the inside wall, heating resistor silk 3 is located inside drying cylinder 4, drying cylinder 4's both sides all are provided with defeated material mechanism 5, defeated material mechanism 5 rotates and connects on box 1's inside wall, motor 2 passes through belt 6 and defeated material mechanism 5, drying cylinder 4 transmission is connected, box 1's top and bottom all are provided with paints cotton 8, paint cotton 8 and defeated material mechanism 5 cooperations.
The opposite side walls of the box body 1 are provided with strip-shaped through holes 11, and the strip-shaped through holes 11 are matched with the material conveying mechanism 5, so that the polyvinyl alcohol film can be conveniently input and output.
The conveying mechanism 5 comprises symmetrically arranged rollers 51, the rollers 51 are fixedly connected with rotating rods 52, the two ends of the rotating rods 52 are rotatably connected to the inner side wall of the box body 1, and the conveying mechanism is convenient to rotate through the rollers 51, so that a polyvinyl alcohol film is input into the box body 1 through the strip-shaped through hole 11 on one side of the box body 1 and is output through the strip-shaped through hole 11 on the other side.
The two end parts of the drying cylinder 4 are closed, the rotating shafts 7 are fixedly connected to the two end parts of the drying cylinder 4, and one end of each rotating shaft 7, which is far away from the drying cylinder 4, is rotatably connected to the inner side wall of the cover body 1, so that the rotating shafts 7 are fixedly connected to the end parts of the drying cylinder 4;
one end of one of the rotating shaft 7 and the rotating rod 52 all runs through the side wall of the box body 1 and is fixedly connected with the first belt pulley 71, the output shaft of the motor 2 is fixedly connected with the second belt pulley 21, the belt 6 is sleeved on the first belt pulley 71 and the second belt pulley 21, the output shaft of the motor 2 is convenient to drive the rotating shaft 7 and the rotating rod 52 to rotate through the belt 6, and therefore the drying cylinder 4 and the roller 51 are driven to rotate.
It holds chamber 72 to have seted up in the axis of rotation 7 that is fixed with first belt pulley 71, heating resistor wire 3 fixed connection is on the inside wall of drying cylinder 4, heating resistor wire 3 is heliciform fixed connection on the inside wall of drying cylinder 4, thereby it is comparatively all to make drying cylinder 4 be heated, and drying cylinder 4's material is heat conducting material, and heating resistor wire 3's one end runs through drying cylinder 4's lateral wall and extends to holding in the chamber 72, can install electrical storage equipment such as battery in holding chamber 72, and make wire on the heating resistor wire 3 pass through control switch and be connected with the electrical storage equipment electricity, thereby ensure heating resistor wire 3's normal work.
The box 13 is held to the top fixedly connected with of box 1, the up end that holds box 13 runs through the roof of box 1 and is parallel and level mutually with the roof upper surface of box 1, the cotton 6 fixed connection that paints that is located the box 1 top is on the lateral wall that holds box 13, and paint the upper end fixedly connected with bar cotton 81 of cotton 8, bar cotton 81 keeps away from the terminal surface that paints cotton 8 and runs through the lateral wall that holds box 13 and contact with the bottom that holds box 13, it is the sponge material with the material of bar cotton 81 to paint cotton 8, be convenient for absorb the antiseize agent of loading in holding box 13, and paint the antiseize agent to on the cylinder 51 that lies in the upper portion in defeated material mechanism 5, avoid the polyvinyl alcohol film adhesion on the cylinder in defeated material mechanism 5.
The bottom plate lower surface of box 1 is located the equal fixedly connected with bracing piece 14 of four corners department, fixedly connected with carries thing board 15 on the lateral wall of bracing piece 14, it carries thing box 12 to have placed on carrying thing board 15, the lower extreme that paints cotton 8 that is located the box 1 bottom contacts with the bottom that carries thing box 15, the upper end of painting cotton 8 runs through the top that carries thing box 15 and the bottom of box 1 and extends to in the box 1, be convenient for paint the antiseized agent that cotton 8 absorption loaded in carrying thing box 12, and paint antiseized agent on the cylinder 51 that is located the lower part in defeated material mechanism 5.
Fixedly connected with fan 16 on the lateral wall of box 1 and a stoving section of thick bamboo 4 looks vertically, fan 16 keep away from a stoving section of thick bamboo 4 the lateral wall run through box 1 the lateral part and with box 1's lateral wall parallel and level mutually, the ventilation hole 17 has been seted up to the equidistance on the lateral wall that box 1 and fan 16 are relative, is convenient for improve the radiating efficiency of polyvinyl alcohol film, avoids the heat dwell time overlength on the polyvinyl alcohol film, and causes the polyvinyl alcohol film to be the fragility.
The working principle is as follows: in the using process of the invention, a lead on the motor 2 is connected with a power supply, then a lead on the fan 16 is electrically connected with an electric power storage device, and a control switch connected with the heating resistance wire 3 is turned on, so that the heating resistance wire 3 heats the drying cylinder 4; when the motor 2 works, the output shaft of the motor 2 drives the rotating rod 52 and the rotating shaft 7 to rotate through the belt 6, so that the polyvinyl alcohol film is conveyed to the interior of the box body 1 through the strip-shaped through hole 11, close to the smearing surface 8, on the box body 1 through the rotation of the roller 51 and then is output through the strip-shaped through hole 11 far away from the smearing cotton 8; when the polyvinyl alcohol film bypasses the drying cylinder 4 downwards, the drying cylinder 4 transfers heat to the polyvinyl alcohol film, so that the polyvinyl alcohol film is dried, when the fan 16 works, the fan 16 can improve the air circulation in the box body 1, the heat dissipation efficiency of the polyvinyl alcohol film is improved, and the phenomenon that the heat stays on the polyvinyl alcohol film for too long time and only the polyvinyl alcohol film is brittle is avoided.
Inject into anti-sticking agent solution and carry thing box 12 and hold in the box 13, because the material of paining cotton 8 and bar cotton 81 is sponge material, thereby can make to paint cotton 8 and absorb the anti-sticking agent solution of carrying thing box 12 and holding in the box 13, when paining cotton 8 and go up absorbent anti-sticking agent solution and reach the saturation state, because the rotation of cylinder 51, thereby make to paint cotton 8 and paint anti-sticking agent solution on cylinder 51, when the polyvinyl alcohol film got into in the box 1 through being close to the bar through-hole 11 of paining cotton 8, because polyvinyl alcohol film surface adhesion has anti-sticking agent solution, thereby make the polyvinyl alcohol film in drying section of thick bamboo 4 and keeping away from when paining the cylinder 51 of bar through-hole 11 department of cotton 8, can avoid the polyvinyl alcohol film to glue on drying section of thick bamboo 4 and keeping away from paining cotton 8's cylinder 51, it is convenient to have brought for the staff.
"fixedly connected" as described in the present invention means that two parts connected to each other are fixed together, typically by welding, screwing or gluing; "rotationally coupled" means that two components are coupled together and capable of relative motion.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a heat setting and moisture regain device of water-soluble polyvinyl alcohol film, includes box (1), motor (2) and heating resistor silk (3), motor (2) fixed connection is on the lateral wall of box, its characterized in that: the utility model discloses a drying machine, including box (1), drying cylinder (4), heating resistor silk (3), motor (2), drying cylinder (4), the both sides of drying cylinder (4) all are provided with defeated material mechanism (5), defeated material mechanism (5) rotate to be connected on the inside wall of box (1), motor (6) are connected with defeated material mechanism (5), drying cylinder (4) transmission through belt (6), the top and the bottom of box (1) all are provided with paints cotton (8), paint cotton (8) and match with defeated material mechanism (5).
2. The heat-setting and moisture-regaining apparatus for water-soluble polyvinyl alcohol film according to claim 1, wherein: the lateral wall that box (1) is relative has all seted up bar through-hole (11), bar through-hole (11) cooperate with defeated material mechanism (5).
3. The heat-setting and moisture-regaining apparatus for water-soluble polyvinyl alcohol film according to claim 1, wherein: defeated material mechanism (5) are including cylinder (51) that the symmetry set up, cylinder (51) fixedly connected with dwang (52), the both ends of dwang (52) are rotated and are connected on the inside wall of box (1).
4. The heat-setting and moisture-regaining apparatus for water-soluble polyvinyl alcohol film according to claim 3, wherein: the two end parts of the drying cylinder (4) are closed, the rotating shaft (7) is fixedly connected to the two end parts of the drying cylinder (4), and one end, far away from the drying cylinder (4), of the rotating shaft (7) is rotatably connected to the inner side wall of the cover body (1);
one of them axis of rotation (7) all run through the lateral wall of box (1) and first belt pulley of fixedly connected with (71) with the one end of dwang (52), fixedly connected with second belt pulley (21) on the output shaft of motor (2), belt (6) cover is established on first belt pulley (71) and second belt pulley (21).
5. The heat-setting and moisture-regaining apparatus of claim 4, wherein: the drying drum is characterized in that a containing cavity (72) is formed in the rotating shaft (7), the heating resistance wire (3) is fixedly connected to the inner side wall of the drying drum (4), and one end of the heating resistance wire (3) penetrates through the side wall of the drying drum (4) and extends into the containing cavity (72).
6. The heat-setting and moisture-regaining apparatus for water-soluble polyvinyl alcohol film according to claim 1, wherein: the top fixedly connected with of box (1) holds box (13), the up end that holds box (13) runs through the roof of box (1) and is parallel and level mutually with the roof upper surface of box (1), is located scribbling cotton (6) fixed connection at box (1) top is on the lateral wall that holds box (13), and paints the upper end fixedly connected with bar cotton (81) of cotton (8), bar cotton (81) are kept away from a terminal surface of scribbling cotton (8) and are run through the lateral wall that holds box (13) and contact with the bottom that holds box (13).
7. The heat-setting and moisture-regaining apparatus of claim 6, wherein: the utility model discloses a box, including box (1), bottom plate, thing board (15), thing box (12), thing box (15) are carried to fixedly connected with on the lateral wall of bracing piece (14), the bottom plate lower surface of box (1) is located the equal fixedly connected with bracing piece (14) of four corners department, fixedly connected with carries thing board (15) on the lateral wall of bracing piece (14), it carries thing box (12) to have placed on carrying thing board (15), is located the lower extreme of paining cotton (8) of box (1) bottom contacts with the bottom of carrying thing box (15), the upper end of paining cotton (8) runs through the top of carrying thing.
8. The heat-setting and moisture-regaining apparatus for water-soluble polyvinyl alcohol film according to claim 1, wherein: fixedly connected with fan (16) on box (1) and drying cylinder (4) looks vertically lateral wall, the lateral wall that drying cylinder (4) was kept away from in fan (16) runs through the lateral part of box (1) and with the lateral wall parallel and level of box (1), ventilation hole (17) have been seted up to the equidistance on the lateral wall that box (1) and fan (16) are relative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887093.7A CN110625865A (en) | 2019-09-19 | 2019-09-19 | Heat setting and moisture regaining device for water-soluble polyvinyl alcohol film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887093.7A CN110625865A (en) | 2019-09-19 | 2019-09-19 | Heat setting and moisture regaining device for water-soluble polyvinyl alcohol film |
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| Publication Number | Publication Date |
|---|---|
| CN110625865A true CN110625865A (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910887093.7A Pending CN110625865A (en) | 2019-09-19 | 2019-09-19 | Heat setting and moisture regaining device for water-soluble polyvinyl alcohol film |
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| CN (1) | CN110625865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896345A (en) * | 2020-07-30 | 2020-11-06 | 上海化工研究院有限公司 | Device for uniformly coating medicine film on inner wall of container in toxicity contact experiment |
-
2019
- 2019-09-19 CN CN201910887093.7A patent/CN110625865A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896345A (en) * | 2020-07-30 | 2020-11-06 | 上海化工研究院有限公司 | Device for uniformly coating medicine film on inner wall of container in toxicity contact experiment |
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