CN205601147U - Outer asymmetric film of nylon prevent crimping device - Google Patents
Outer asymmetric film of nylon prevent crimping device Download PDFInfo
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- CN205601147U CN205601147U CN201620437000.2U CN201620437000U CN205601147U CN 205601147 U CN205601147 U CN 205601147U CN 201620437000 U CN201620437000 U CN 201620437000U CN 205601147 U CN205601147 U CN 205601147U
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- water bath
- sea water
- guide roller
- film
- roller set
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Abstract
The utility model relates to an outer asymmetric film of nylon prevent crimping device, including sea water bath fixed guide roller set and the portable guide roller set inside with being located the sea water bath, portable guide roller set is located fixed guide roller set's top, and portable guide roller set can reciprocate, and temperature control device is installed to the sea water bath bottom, and the top of sea water bath one side is equipped with at least a set of pressure roller, and the pressure roller top is equipped with two at least first deflector rolls of upper and lower direction installation, and the upper portion of first deflector roll all is equipped with the air knife rather than the parallel, and vertical drying cabinet is installed to the top of first deflector roll, the inside of vertical drying cabinet is equipped with two at least second deflector rolls. The beneficial effects of the utility model are that: does film after this device is handled have better physical -mechanical properties, better transparency, more excellent thermoforming dark tensile properties, more soft and better dimensional stability.
Description
Technical field
This utility model relates to the device blowing thin film in a kind of co-extrusion, particularly relates to a kind of thin film Anti-curling dress
Put, belong to thin film fabrication techniques field.
Background technology
Nylon blows thin film in the coextrusion of outer layer, such as PA/TIE/PO, PA/EVOH/PA/TIE/PO, combines
Close multiple excellent function such as: surface printing, thermoforming, heat-sealing.But due in multiple structure each group
Divide different crystallization kinetics factors, i.e. recrystallization and shrinkage characteristics so that such thin film is to polyolefinic
Direction crimps.This curling will make troubles to the subsequent applications of thin film: either rolling, printing, point
Cut or fill.Traditional approach improves this problem, such as by the design of the more number of plies: with
The seven-layer structure of PA/TIE/PO/TIE/PA/TIE/PO replaces PA/TIE/PO three-decker；With
Nine Rotating fields of PA/TIE/PO/TIE/PA/EVOH/PA/TIE/PO replace PA/EVOH/PA/TIE/PO five
Rotating fields.The problem thus brought except more expensive equipment purchase cost and the higher cost of raw material it
Outward, some more excellent properties of unsymmetric structure thin film are also sacrificed: deep drawn, transparency etc..
Curling problem Producing reason is the gap of layer materials crystallization temperature, and thin film is at extrusion
In, material produces contraction from melt state during being cooled to crystallization temperature, when film temperature declines
Under the crystallization temperature of high crystallization temperature material on the crystallization temperature of low crystallization temperature material
Interval interior, high crystallization temperature material solidifies, and stops deformation, and low crystallization temperature material continues because crystallizing
Process and shrink, thus cause thin film to low crystallization temperature material direction crimp.As: PA/TIE/PP
Thin film can crimp to PP direction；And PE/PP thin film can crimp to PE direction.Cooling (class drastically
Like cast film, or downward-blowing water-cooling) make coextruded film temperature drop to all material in the extremely short time
Crystallization temperature below, layer materials solidifies the most simultaneously and stops continuing crystallization, and then almost simultaneously
Stop shrinking deformation, the curling of non-symmetric thin-film can be effectively improved.
But for the coextruded film of upper blowing method, to reach above-mentioned cooling effectiveness be difficult to.Luckily
, for nylon is at the non-symmetric thin-film (such as PA/TIE/PE) of outer layer, due to nylon material
Particularity, by the thin film of modified outer layer nylon material blowing, (control water through online processed by hot bath
Bath temperature and the time of staying, follow corresponding time temperature equivalence principle simultaneously), outer layer nylon material can be made
After absorbing moisture, there is recrystallization, and then bring secondary to shrink, thus improve and even eliminate normal blown film
The curling that process is brought.In short, for co-extrusion non-symmetric thin-film that outer layer is nylon: adjust outer layer
Nylon crystalline state through online hot bath, is the effective improvement solution that even eliminates the curling of thin film
Scheme.
This solution must comprise following essential condition simultaneously:
1) thin film efficient cooling at film mouth: preferably cooling effect can at utmost reduce nylon
Crystallization degree.
2) outer layer application modification of nylon: add the modification of proper proportion in general nylon material (PA6)
Nylon reduces its crystallization degree.
3) the online hot bath of thin film, by surface modification nylon for the absorption of moisture, does not partly crystallize
Region recrystallization causes the secondary of surface nylon to shrink and then reaches to improve and eliminate the curling of monolithic film membrane.
(this process must produce in blown film and carry out online)
Process conditions suitable during processed by hot bath, mainly water temperature and the thin film time of staying in hot bath
Control.Suitable process conditions can obtain smooth thin film；Treatment conditions are not enough, including modified Buddhist nun
Dragon addition is very few, and water temperature is low, and the time of staying short meeting makes thin film still crimp to polyolefin direction；Process
Condition is excessive, and too much including modification of nylon addition, water temperature is higher, and the time of staying is long, can make thin film
Outer layers nylon direction crimps.
Utility model content
The crimp that this utility model occurs in producing for existing non-symmetric thin-film, it is provided that a kind of outer layer
Anti-curling device for the non-symmetric thin-film of nylon.
The technical scheme that this utility model solves above-mentioned technical problem is as follows:
The Anti-curling device of a kind of nylon outer layer non-symmetric thin-film, it is characterised in that include sea water bath and position
In the stationary guide roller group within sea water bath and removable guide roller set, described removable guide roller set is positioned at fixing leading
The top of roller group, described removable guide roller set can move up and down, and is provided with temperature control dress bottom described sea water bath
Put, described sea water bath side be arranged over least one set pressure roll, described pressure roll is arranged over,
At least two the first deflector roll that lower direction is installed, the top of described first deflector roll is equipped with gas in parallel
Cutter, described first deflector roll be arranged above vertical drying case, the inside of described vertical drying case be provided with to
Few two the second deflector rolls.
The beneficial effects of the utility model are:
1) recrystallization and secondary after utilizing nylon material to absorb moisture shrink and can significantly improve or eliminate film rolling
Bent phenomenon；
2) rise/fall of removable guide roller set can be increased or decreased thin film stroke in hot bath, maximum
Progressive error is away from up to more than 4 times, and this design can ensure that the thin film of different-thickness energy under different linear velocities
Enough stopping the identical time in hot bath, the thickness range for thin film has the widest suitability；
3) thin film after this device processes has a physically better mechanical performance, more preferable transparency, more excellent
Different thermoforming-deep drawn performance, more soft and more preferable dimensional stability.
On the basis of technique scheme, this utility model can also do following improvement.
Further, the side of described sea water bath is provided with level detection and automatic water supply device.
Use above-mentioned further scheme to provide the benefit that, can automatically carry out liquid level monitoring and according to detecting
Result sea water bath is carried out automatic water-supply.
Further, the side of described sea water bath is provided with overfall.
Use above-mentioned further scheme to provide the benefit that, when the water yield is too high in sea water bath, can overflow many
Remaining water, suitable water level in being beneficial to keep sea water bath.
Further, the top of described sea water bath is provided with openable upper cover.
The beneficial effect using above-mentioned further technical scheme it is possible to reduce dissipating of heat as far as possible
Lose, make sea water bath form a semiclosed system, be beneficial to accurately control the temperature of water-bath system.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model Anti-curling device；
In Fig. 1,1, sea water bath；2, attemperating unit；3, stationary guide roller group；4, removable guide roller set；5、
Pressure roll；6, the first deflector roll；7, air knife；8, vertical drying case；9, the second deflector roll；10, upper cover；
11, level detection and automatic water supply device；12, overfall
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with example, example is served only for solving
Release this utility model, be not intended to limit scope of the present utility model.
As it is shown in figure 1, the Anti-curling device of a kind of nylon outer layer non-symmetric thin-film, including sea water bath 1 He
Being positioned at the stationary guide roller group 3 within sea water bath 1 and removable guide roller set 4, stationary guide roller group 3 is by 3
Deflector roll composition arranged in parallel, removable guide roller set 4 is made up of 2 deflector rolls arranged in parallel, removable
Guide roller set 4 is positioned at the top of stationary guide roller group 3, and removable guide roller set 4 can move up and down, sea water bath 1
Bottom attemperating unit 2 is installed, sea water bath 1 side be arranged over one group of pressure roll 5, described pressure
Roller 5 is arranged over the upper and lower two the first deflector rolls 6 to installation, and the top of the first deflector roll 6 is equipped with
Air knife 7 in parallel, described first deflector roll 6 be arranged above vertical drying case 8, described vertical
The inside of drying baker 8 is provided with the second deflector roll 9 of two upper and lower installations, is provided with liquid on the left of sea water bath 1
Face detection and automatic water supply device 11, be provided with overfall 12, the top of sea water bath 1 on the right side of sea water bath 1
Being additionally provided with can the upper cover 10 of folding.
The use process of above-mentioned Anti-curling device is as follows:
1) thin film enters in sea water bath, direction as shown in Figure 1, respectively through stationary guide roller group 3 and can
Mobile guide roller set 4 so that the modification of nylon of film surface fully absorbs moisture and carries out recrystallization；
2) from sea water bath out after thin film get rid of the moisture on surface through pressure roll 5, rear enter two
First deflector roll 6, the moisture that film surface is remained by the air knife 7 on the first deflector roll 6 top is carried out further
It is dried, simultaneously by the surface being fixed on the first deflector roll smooth for thin film；
3) carry out in entering the vertical drying case 8 above the first deflector roll 6 with rear film along the second deflector roll 9
It is dried, it is ensured that the drying effect of thin film.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (4)
1. the Anti-curling device of a nylon outer layer non-symmetric thin-film, it is characterised in that include sea water bath
With the stationary guide roller group being positioned within sea water bath and removable guide roller set, described removable guide roller set is positioned at solid
Determining the top of guide roller set, described removable guide roller set can move up and down, and is provided with temperature bottom described sea water bath
Control device, described sea water bath side be arranged over least one set pressure roll, described pressure roll is arranged over
Upper and lower is at least two the first deflector roll installed, and the top of described first deflector roll is equipped with in parallel
Air knife, described first deflector roll be arranged above vertical drying case, the inside of described vertical drying case sets
There is at least two the second deflector roll.
The Anti-curling device of nylon outer layer non-symmetric thin-film the most according to claim 1, its feature
Being, the side of described sea water bath is provided with level detection and automatic water supply device.
The Anti-curling device of nylon outer layer non-symmetric thin-film the most according to claim 1, its feature
Being, the side of described sea water bath is provided with overfall.
4. fill according to the Anti-curling of the nylon outer layer non-symmetric thin-film according to any one of claim 1-3
Put, it is characterised in that the top of described sea water bath is provided with openable upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620437000.2U CN205601147U (en) | 2016-05-12 | 2016-05-12 | Outer asymmetric film of nylon prevent crimping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620437000.2U CN205601147U (en) | 2016-05-12 | 2016-05-12 | Outer asymmetric film of nylon prevent crimping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205601147U true CN205601147U (en) | 2016-09-28 |
Family
ID=56967391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620437000.2U Active CN205601147U (en) | 2016-05-12 | 2016-05-12 | Outer asymmetric film of nylon prevent crimping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205601147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527898A (en) * | 2018-04-02 | 2018-09-14 | 江阴市格瑞包装材料有限公司 | A kind of coiling-resistant treatment process of PP TYPE |
-
2016
- 2016-05-12 CN CN201620437000.2U patent/CN205601147U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527898A (en) * | 2018-04-02 | 2018-09-14 | 江阴市格瑞包装材料有限公司 | A kind of coiling-resistant treatment process of PP TYPE |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Outer asymmetric film of nylon prevent crimping device Effective date of registration: 20200617 Granted publication date: 20160928 Pledgee: Yantai re Company limited by guarantee Pledgor: YANTAI FENGFULAI FILM TECHNOLOGY Co.,Ltd. Registration number: Y2020980003176 |