CN112873814A - Flattening and finishing method for nylon film processing semi-finished product - Google Patents
Flattening and finishing method for nylon film processing semi-finished product Download PDFInfo
- Publication number
- CN112873814A CN112873814A CN202011554702.6A CN202011554702A CN112873814A CN 112873814 A CN112873814 A CN 112873814A CN 202011554702 A CN202011554702 A CN 202011554702A CN 112873814 A CN112873814 A CN 112873814A
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- Prior art keywords
- containing box
- nylon film
- liquid
- film
- rollers
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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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- 229920006284 nylon film Polymers 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000011265 semifinished product Substances 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000005192 partition Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 231100000053 low toxicity Toxicity 0.000 claims abstract description 4
- 231100000252 nontoxic Toxicity 0.000 claims abstract description 3
- 230000003000 nontoxic effect Effects 0.000 claims abstract description 3
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 10
- 229920002545 silicone oil Polymers 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 230000037303 wrinkles Effects 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/16—Straightening or flattening
- B29C53/18—Straightening or flattening of plates or sheets
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
- B29C2035/1625—Cooling using liquids other than water
- B29C2035/1633—Cooling using liquids other than water oil
-
- 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)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention relates to the technical field of nylon film processing, in particular to a flattening and finishing method for a nylon film processing semi-finished product, which has simple flow, enables a stretched film to retract in liquid, improves the deformation uniformity of the film and prevents wrinkles; the method comprises the following steps: s1, installing a containing box at an outlet of the stretching box, wherein the containing box is hollow and has an opening at the top, low-toxicity or nontoxic, low viscosity, difficult volatilization and no water-containing liquid is added into the containing box, N lower rollers are installed in the lower half area of the containing box and are all positioned in the liquid, N +1 upper rollers are installed in the upper half area of the containing box, and a height lifting section is arranged at a film outlet of the containing box; s2, arranging N-1 partition plates at the bottom in the containing box, and dividing the inside of the containing box into N areas; s3, the film from the stretching box passes through N +1 upper rollers and N lower rollers in an S shape, then the liquid on the surface of the nylon film is removed through a height lifting section, and the next procedure is carried out.
Description
Technical Field
The invention relates to the technical field of nylon film processing, in particular to a flattening and finishing method for a nylon film processing semi-finished product.
Background
The nylon film is a very tough film, has good transparency, good luster, high tensile strength and tensile strength, good heat resistance, cold resistance, oil resistance and organic solvent resistance, excellent wear resistance and puncture resistance, is softer, has excellent oxygen resistance, has poor barrier property to water vapor, has high moisture absorption and moisture permeability and poor heat sealability, and is suitable for packaging hard articles such as greasy food, meat products, fried food, vacuum packaged food, steamed food and the like.
In the production of a polymer film, biaxial stretching or uniaxial stretching is needed, the stretching temperature is high, the temperature needs to be reduced after the polymer film is taken out of a stretching box, and the wrinkles are formed on the surface of the film due to uneven film thickness, uneven temperature and the defects of equipment per se during temperature reduction; the mechanical type easily causes the film to be excessively pulled, so that the film is damaged; therefore, it is necessary to develop a method for smoothing and finishing nylon film processing semi-finished products to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a flattening and finishing method for a nylon film processing semi-finished product, which has simple flow, enables the stretched film to retract in liquid, improves the deformation uniformity of the film and prevents wrinkles.
The invention relates to a flattening and finishing method of a nylon film processing semi-finished product, which comprises the following steps:
s1, installing a containing box at an outlet of the stretching box, wherein the containing box is hollow and has an opening at the top, low-toxicity or nontoxic, low viscosity, difficult volatilization and no water-containing liquid is added into the containing box, N lower rollers are installed in the lower half area of the containing box, the N lower rollers are all positioned in the liquid, N +1 upper rollers are installed in the upper half area of the containing box, the N +1 upper rollers are all positioned above the liquid, and a height lifting section is arranged at a film outlet of the containing box;
s2, arranging N-1 partition plates at the bottom in the containing box, dividing the inside of the containing box into N areas, and gradually reducing the temperature of the N areas to room temperature along the trend of the nylon film;
s3, the film from the stretching box passes through N +1 upper rollers and N lower rollers in an S shape, then the liquid on the surface of the nylon film is removed through a height lifting section, and the next procedure is carried out.
According to the flattening and finishing method for the nylon film processing semi-finished product, disclosed by the invention, in the step S1, the liquid is isobutanol or silicone oil.
According to the flattening and finishing method of the nylon film processing semi-finished product, the viscosity in the step S1 is 1-11 cps.
According to the leveling and finishing method for the nylon film processing semi-finished product, the lower roller and the upper roller are both made of stainless steel materials.
According to the flattening and finishing method of the nylon film processing semi-finished product, N is more than or equal to 4 in the steps S1, S2 and S3.
According to the leveling and finishing method of the nylon film processing semi-finished product, the height lifting section sequentially comprises a transition roller contacted with the front surface of the nylon film, a liquid scraping roller contacted with the back surface of the nylon film, a first air knife facing the front surface of the nylon film, a second air knife facing the back surface of the nylon film, a first traction roller and a second traction roller for driving the nylon film to move from bottom to top.
According to the method for flattening and finishing the nylon film processed semi-finished product, the upper roller and the lower roller are driven by the motor, and the speed between the adjacent upper roller and the lower roller is adjusted through a speed ratio mode.
According to the flattening and finishing method for the nylon film processing semi-finished product, N areas in the step S2 are independently controlled by temperature.
According to the leveling and finishing method for the nylon film processing semi-finished product, the top of the containing box is rotatably provided with the plurality of visual windows.
According to the leveling and finishing method for the nylon film processing semi-finished product, the heights of the N lower rollers can be adjusted.
Compared with the prior art, the invention has the beneficial effects that: firstly, the temperature of liquid in the containing box is gradually reduced to room temperature along the trend of the film, the film from the stretching box shrinks in the liquid, compared with the mode of directly exposing the film in the air for shrinking in the prior art, the shrinkage is more uniform, and wrinkles cannot be generated in the subsequent working section; secondly, the selected liquid is isobutanol and silicone oil which are low in toxicity, low in viscosity, not easy to volatilize and free of water, the nylon film cannot be damaged, the isobutanol and the silicone oil can remove the liquid on the surface of the film through the liquid scraping roller, the first air knife and the second air knife, no residue is generated, and no harm is generated in subsequent use; the height of third, lower roller can be adjusted, and the nylon film of being more convenient for passes and holds the case.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the drawings, the reference numbers: 1. a containing box; 2. a lower roller; 3. a roller is arranged; 4. a partition plate; 5. a transition roll; 6. a liquid scraping roller; 7. a first air knife; 8. a second air knife; 9. a first pull roll; 10. a second pull roll.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
the method comprises the following steps:
s1, installing a containing box 1 at an outlet of a stretching box, wherein the containing box 1 is hollow and has an open top, low-toxicity or non-toxicity, low viscosity of 1-11cps, and non-volatile and non-aqueous silicone oil is added into the containing box 1, 4 lower rollers 2 are installed in the lower half area of the containing box 1, the heights of the 4 lower rollers 2 can be adjusted, the 4 lower rollers 2 are all positioned in the silicone oil, 5 upper rollers 3 are installed in the upper half area of the containing box 1, the 5 upper rollers 3 are all positioned above the silicone oil, a transition roller 5, a liquid scraping roller 6, a first air knife 7, a second air knife 8, a first traction roller 9 and a second traction roller 10 are arranged at a film outlet of the containing box 1, and the height lifting section of the transition roller 5, the liquid scraping roller 6, the first air knife 7, the second air knife 8 and the second traction roller are sequentially arranged from bottom to top and are in contact with the front surface of the nylon film, the upper roller 3 and the lower roller 2 are driven by a motor, and the speed between the adjacent upper roller 3 and the lower roller 2 is adjusted by a speed ratio mode;
s2, arranging 3 partition plates 4 at the bottom in the containing box 1, dividing the inside of the containing box 1 into 4 areas, gradually reducing the temperature of the 4 areas to room temperature along the trend of the nylon film, and independently controlling the temperature of the 4 areas;
s3, enabling the film from the stretching box to pass through 5 upper rollers 3 and 4 lower rollers 2 in an S shape, then removing silicone oil on the surface of the nylon film through a height lifting section, and then carrying out the next process;
example 2:
the silicone oil in example 1 was replaced with isobutanol;
comparative example:
the film from the stretching box passes through 4 lower rolls 2 and 5 lower rolls 2 in an S-shape, and at least 4 sets of mechanical flattening rolls are provided in the meantime.
The films obtained in examples 1-2 and comparative example were tested and the following results were obtained:
| thickness range mm | Flatness of the steel sheet | Scratch strip/100 square meter | Residual amount of liquid | |
| Example 1 | ±0.6 | A | 1 | 0 |
| Example 2 | ±0.7 | A | 0 | 0 |
| Comparative example | ±1.6 | C | 24 | - |
From the above data, it can be seen that the thin film prepared by the method of the present invention has a smaller thickness variation, a more uniform thickness distribution, better flatness, and substantially no scratch, and no liquid residue.
The invention relates to a method for flattening and finishing a nylon film processed semi-finished product, wherein the mounting mode, the connection mode or the arrangement mode of all the components are welding, riveting or other common mechanical modes, the slidable/rotary fixing mode is that the components do not fall off under the sliding/rotary state, the sealing communication is that two connecting pieces are communicated and simultaneously sealed, the specific structures, the models and the coefficient indexes of all the components are self-contained technologies, the implementation can be carried out as long as the beneficial effects of the components are achieved, all the electric modules and electric appliances are common electric appliances in the market, the electric modules and the electric appliances can be used after being bought and used only by being electrically connected with each other according to the use instructions bought and returned together, and the control module is a common self-contained module, so the details are not repeated.
The invention relates to a method for flattening and finishing a nylon film processing semi-finished product, which comprises the following steps of, the directional terms "up, down, left, right, front, back, inside, and outside, and vertical and horizontal" included in the term merely represent the orientation of the term in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A flattening and finishing method for nylon film processing semi-finished products is characterized by comprising the following steps:
s1, installing a containing box at an outlet of the stretching box, wherein the containing box is hollow and has an opening at the top, low-toxicity or nontoxic, low viscosity, difficult volatilization and no water-containing liquid is added into the containing box, N lower rollers are installed in the lower half area of the containing box, the N lower rollers are all positioned in the liquid, N +1 upper rollers are installed in the upper half area of the containing box, the N +1 upper rollers are all positioned above the liquid, and a height lifting section is arranged at a film outlet of the containing box;
s2, arranging N-1 partition plates at the bottom in the containing box, dividing the inside of the containing box into N areas, and gradually reducing the temperature of the N areas to room temperature along the trend of the nylon film;
s3, the film from the stretching box passes through N +1 upper rollers and N lower rollers in an S shape, then the liquid on the surface of the nylon film is removed through a height lifting section, and the next procedure is carried out.
2. The method of claim 1, wherein the liquid in step S1 is isobutanol or silicone oil.
3. The finishing method of claim 2, wherein the viscosity of the nylon film processing semi-finished product in the step S1 is 1 to 11 cps.
4. The method of claim 3, wherein the lower roller and the upper roller are made of stainless steel.
5. The method of claim 4, wherein N is 4 or more in steps S1, S2 and S3.
6. The method for flattening and finishing the nylon film processing semi-finished product according to claim 5, wherein the height lifting section comprises a transition roller contacting with the front surface of the nylon film, a liquid scraping roller contacting with the back surface of the nylon film, a first air knife facing the front surface of the nylon film, a second air knife facing the back surface of the nylon film, a first traction roller and a second traction roller for driving the nylon film to move in sequence from bottom to top.
7. The method as claimed in claim 6, wherein the upper and lower rollers are driven by a motor, and the speed between the adjacent upper and lower rollers is adjusted by a speed ratio mode.
8. The method as claimed in claim 7, wherein the N zones are independently controlled in temperature in step S2.
9. The method as claimed in claim 8, wherein a plurality of visual windows are rotatably installed on the top of the container.
10. The method as claimed in claim 9, wherein the heights of the N lower rollers are adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011554702.6A CN112873814A (en) | 2020-12-24 | 2020-12-24 | Flattening and finishing method for nylon film processing semi-finished product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011554702.6A CN112873814A (en) | 2020-12-24 | 2020-12-24 | Flattening and finishing method for nylon film processing semi-finished product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112873814A true CN112873814A (en) | 2021-06-01 |
Family
ID=76043933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011554702.6A Pending CN112873814A (en) | 2020-12-24 | 2020-12-24 | Flattening and finishing method for nylon film processing semi-finished product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112873814A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH319677A (en) * | 1952-01-23 | 1957-02-28 | Ici Ltd | Process for the production of plastic films |
| US3460194A (en) * | 1965-09-08 | 1969-08-12 | Du Pont | Apparatus for dimensional stabilization of thermoplastic film |
| CN104827614A (en) * | 2015-05-29 | 2015-08-12 | 南京京锦元科技实业有限公司 | Cooling unit for modification process of long glass fiber reinforced plastic |
| CN109878004A (en) * | 2019-03-12 | 2019-06-14 | 上海圣奎塑业有限公司 | Stage temperature control production equipment |
| CN209307625U (en) * | 2018-09-14 | 2019-08-27 | 无锡市天幕特阔印染有限公司 | A kind of dye gigging woven fabric convenient to use removes liquid device |
-
2020
- 2020-12-24 CN CN202011554702.6A patent/CN112873814A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH319677A (en) * | 1952-01-23 | 1957-02-28 | Ici Ltd | Process for the production of plastic films |
| US3460194A (en) * | 1965-09-08 | 1969-08-12 | Du Pont | Apparatus for dimensional stabilization of thermoplastic film |
| CN104827614A (en) * | 2015-05-29 | 2015-08-12 | 南京京锦元科技实业有限公司 | Cooling unit for modification process of long glass fiber reinforced plastic |
| CN209307625U (en) * | 2018-09-14 | 2019-08-27 | 无锡市天幕特阔印染有限公司 | A kind of dye gigging woven fabric convenient to use removes liquid device |
| CN109878004A (en) * | 2019-03-12 | 2019-06-14 | 上海圣奎塑业有限公司 | Stage temperature control production equipment |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210601 |
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| RJ01 | Rejection of invention patent application after publication |