CN205588731U - Anti membrane of tearing of isotropic tensile and manufacturing installation thereof - Google Patents
Anti membrane of tearing of isotropic tensile and manufacturing installation thereof Download PDFInfo
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- CN205588731U CN205588731U CN201620062839.2U CN201620062839U CN205588731U CN 205588731 U CN205588731 U CN 205588731U CN 201620062839 U CN201620062839 U CN 201620062839U CN 205588731 U CN205588731 U CN 205588731U
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Abstract
The utility model discloses an anti membrane of tearing of isotropic tensile and manufacturing installation thereof, include the tubulose film through biaxial stretching, the tubulose film at least one side with it integrative heat recombination have earlier through behind the biaxial stretching, again through 45 degrees synchro -draw membranes of cutting sth. Askew after cutting sth. Askew. This kind of membrane furthest's performance the tensile properties and the tear resistance of material, the mechanics loss is little, simple process is easily capable, has realized the anti isotropic that tears of the most genuine tensile.
Description
Technical field
The utility model relates to a kind of isotropism tensile tear-resistant film and manufacture device, near particularly to one
The composite membrane of 360 ° of all directions tensile tear-resistant intensity equivalents, it uses synchro-draw film in blocks according to certain angle cutting
Shape, is heated by direct contact type, fast melt surface, makes the direct heat bonding of at least two sheets together, forms one
Isotropism tensile tear-resistant film.
Background technology
Cross-level press mold is that plastic sheeting solves tensile strength and tearing toughness intensity the good method deposited, international and domestic
The mode all using monodirectional tension film intersection compound realizes.Such as domestic patent (patent No. ZL200710050055.3), this
Technology is disclosed that and oblique cuts in flakes with simple tension film along 15 ~ 75 °, at least two membranes is bonded together with binding agent
's.Owing to polyethylene is straight chain type structure and nonpolarity, any binding agent is not the most fine to the bonding effect of polyethylene, institute
Expected effect is not reached with this production method.And the thin film only one of which direction tensile strength of simple tension is high, perpendicular
Direction tearing toughness high, the tensile tear-resistant performance in other directions is the most very poor, only could solve respectively by the compound of multilamellar
To same sex chromosome mosaicism, and for any one assigned direction, the most only one layer is being born tension or anti tear, can only can be regarded as complementation,
The performance efficiency of combination property is the lowest.
For another example United States Patent (USP) (US3342657), uses multi-layer co-extruded simple tension film, and the outer layer of co-extrusion film uses melted temperature
Spending lower slightly material, such as EVA, so, oblique cut by 30 ~ 60 °, simple tension film more than two-layer intersects hot melt and is laminated it
After, then carry out the progressively stretching of portraitlandscape, form tensile tear-resistant film.But the bonding of this composite membrane is gathered by low melting point
The restriction of compound intensity, adhesion strength is the lowest；Succeeding stretch process is the most also the process of disorientation besides, right
The loss of strength that a front drawing process produces is very big, finds that General Loss is more than 30 ~ 40% aborning, it is also difficult to have good
Good is each to comprehensive tensile tear-resistant performance.
In addition with a lot of methods, if thin film is with non-woven fabric compounded, both added cost, it is also difficult to really realize material and exist
Isotropism in terms of tensile tear-resistant.
Summary of the invention
The purpose of this utility model is that the defect for above-mentioned prior art provides a kind of isotropism tension to resist
Tearing film and manufacture device thereof；Compared with prior art, this utility model has the advantage that intensity is high, performance is good.
For reaching above-mentioned purpose, this utility model following technological means of employing:
A kind of isotropism tensile tear-resistant film, including the tubular film through biaxial tension, in tubular film at least side
Heat in conjunction be compounded with first after biaxial tension, synchro-draw film of cutting sth. askew after 45 degree are cut sth. askew again.
Preferably, each heat in tubular film both sides is compounded with synchro-draw film of cutting sth. askew.
A kind of manufacture method of isotropism tensile tear-resistant film,
A, the extruded blowing of raw material, Quench will be plastified, and control degree of crystallinity, form unformed state, it is simple to stretching, be shaped to
Tubular film embryo；
B, after above-mentioned tubular film embryo heating, carry out horizontal and longitudinal synchro-draw, form tubular film；
C, above-mentioned tubular film is carried out 45 degree cut sth. askew, form synchro-draw film of cutting sth. askew；
D, in the synchro-draw film of cutting sth. askew of hot composite steps C at least side of step B tubular film, form isotropism and resist
Draw Tear resistant film.
Preferably, the Quench in step A is water-cooled, water temperature 10 DEG C ± 2 DEG C, chill time 10 ~ 30 seconds.
Preferably, step B be heated to be heating in water bath, water temperature maximum crystallization rate ± 30 degrees Celsius in, water-bath adds
Heat time 1 ~ 5min.
Preferably, described stretching ratio is 4-8 times.
Preferably, hot combined temp is between above 5-50 degree Celsius of melt temperature.
Preferably, tubular film embryo diameter 100-1000mm, thick 0.1-5mm.
Preferably, tubular film diameter is at 4-8 times of tubular film embryo diameter, and thickness is the 1/4 1/ of tubular film flake thickness degree
Between 40.
A kind of manufacture device of isotropism tensile tear-resistant film, including:
Extrusion device: include the plastic extruder being sequentially connected with, the end of plastic extruder is provided with round screw thread pipe embryo
Head；The lower end of round screw thread pipe head is provided with the cooling vane passed for extrusion plastic pipe embryo；Also include water cooling pond I,
Being soaked with one group of traction guide roller in water cooling pond I, the front end of traction guide roller is provided with man-like shelf, is provided with at least three after traction guide roller
Individual guide roller, finally connects and has rolling forming machine.
Stretching device: described stretching device by by lower fixed station, leading screw, man-like shelf, upper fixed station, draw roll group, on
Carry-over pinch rolls, gas tube of twitching one's mouth are constituted；
Wherein go up fixed station and be positioned at the surface of lower fixed station, between upper and lower fixed station, be provided with vertically arranged leading screw；Silk
Coordinate on thick stick and be provided with draw roll group, rotated the up and down motion realizing draw roll group by leading screw；Draw roll group lower end is provided with therewith
Synchronize the man-like shelf moved up and down；Upper carry-over pinch rolls are positioned at the top of fixed station and are arranged above, at upper carry-over pinch rolls, inflation of twitching one's mouth
Pipe, for being inflated pipe embryo；
It is provided with transition roller and tubular blank in the front end of conveying roller group along conveying direction；It is provided with at the rear of upper carry-over pinch rolls
Guide roller and winder；
Being provided with water cooling pond II, above-mentioned lower fixed station, conveying roller group are dipped in this water cooling pond II.
Guillotine: described guillotine includes the most vertically arranged upper holder, lower fixed frame；On lower fixed frame
End is provided with vertically arranged rotary shaft, and the upper end of rotary shaft is arranged with swivel mount, swivel mount and rotary shaft synchronous axial system, swivel mount
Upper end rotates the lower end being fixed on upper holder, is provided with roller bearing in swivel mount, and roller bearing is added is provided with biaxial stretching film；At swivel mount
Side be provided with and cut open cutter and rolling frame, cut open cutter and rolling frame be 45 degree and be obliquely installed；Biaxial stretching film is through cuing open cutter along rotary shaft
Carrying out in 45 ° of directions rotating cutting, Cheng Yuyuan draw direction is the biaxial stretching film of 45 degree, finally by being 45 ° with rotary shaft
Winder rolling；
Heat composite apparatus, described heat composite apparatus includes calandria, and the both sides of calandria are provided with the axis of guide, outside guide roller
Side is respectively provided with a unreeling machine；The port of export at calandria is provided with and is sequentially provided with composite roll group, guide roller, winder；Wherein, add
The outer surface of hot body scribbles the teflon coating of anti.
Preferably, calandria front end is half elliptic, regulates contact area by height change.
Technical process of the present utility model and having the beneficial effect that:
Extruded for polyolefin polymers blowing, Quench are shaped to tubular film, through synchro-draw by this utility model
Mechanism, stretches i.e. simultaneously in machine and transverse direction, draft temperature control temperature required in the fastest crystallization rate ± 30 DEG C
In the range of, vertically and horizontally stretching ratio is all between 4 ~ 8, can be sufficiently tensile；Again by above-mentioned stretched tubular film
It is being that 45 ° of directions cut into lamellar with draw direction, then, by the above-mentioned film through 45 ° of film sheet cut Yu former synchro-draw
It is compound that sheet material carries out heating, to obtain isotropic tensile tear-resistant thin film.
Thin film after biaxial tension can realize isotropism；Use 45 degree to cut sth. askew, acquirement be thin film double orientation
Weak position, is also the cutting mode being easier to realize and control, and makes the weighing again of stretch orientation direction of two-way film
Improved in the most compound, it is achieved isotropism.
The tubular film of bi-directional synchronization of the present utility model stretching rotates cuttings through 45 °, then same with the most rotated cutting
Step drawing polyolefin film, the isotropism tensile tear-resistant film being composited through contact heat and manufacture method thereof.Heat seal process
The direct Flashmelt heat seal of two-layer diaphragm, firm in conjunction with aspect, it is possible to reduce the tensile strength loss of material, it is ensured that high-performance
Isotropism tensile tear-resistant characteristic.
The isotropism tensile tear-resistant film that this utility model is illustrated is lightweight, and tensile strength is high, and tear resistance is good,
Resistance to nail thorn good leak-proof effect, durable in use, on 360 ° of directions, combination property is the most completely the same, hence it is evident that be better than noted earlier its
The Tear resistant film that simple tension film manufactured by his patent is compound.
Every tunic is all bi-directional synchronization stretching, and intensity is high, and tear resistance is good, and two-layer then can solve each anti-tear to tension
Split same sex performance, strong combination, it is ensured that material is the performance of maximum efficiency in terms of tensile tear-resistant.
Isotropism tensile tear-resistant film, it is only necessary to two-layer biaxial stretching film is compound just can obtain isotropic high-strength
The composite membrane of degree tensile tear-resistant, is combined more scientific than the film of simple tension, the most more economical.
Accompanying drawing explanation
Fig. 1 is bilateral being combined to same sex tensile tear-resistant film；
Fig. 2 is monolateral being combined to same sex tensile tear-resistant film；
Fig. 3 is the extrusion device schematic diagram of extrusion tubular blank；
Fig. 4 is the synchro-draw production process state signal 1 of tubular film；
Fig. 5 is the synchro-draw production process state signal 2 of tubular film；
Fig. 6 is that tubular film rotates guillotine structural representation；
Fig. 7 is tubular film heat composite apparatus structural representation；
Fig. 8 is the flat tubular thin film stress schematic diagram after biaxial tension；
Fig. 9 is the synchro-draw film stress schematic diagram of cutting sth. askew after 45 degree are cut sth. askew；
Figure 10 is isotropism tensile tear-resistant film schematic diagram.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with this utility model.On the contrary, they be only with such as
The example of the device that aspects that described in detail in appended claims, more of the present utility model are consistent.
A kind of isotropism tensile tear-resistant film, including flat tubular thin film, multiple at least side of flat tubular thin film
Conjunction is cut sth. askew synchro-draw film, and Fig. 2 is that side is compound to be arranged, and Fig. 1 is that both sides are compound to be arranged, and Figure 10 is that it is respectively to Impact direction.
Above-mentioned flat tubular thin film is to be formed after biaxial tension, and its Impact direction is as shown in Figure 8；
Cut sth. askew synchro-draw film first after biaxial tension, formation after 45 degree are cut sth. askew again, its Impact direction such as Fig. 9 institute
Show；
It is compounded to form employing hot melt integration combination process.
Above-mentioned flat tubular thin film and synchro-draw film production process of cutting sth. askew are as follows:
The first step, production tubular blank.
As it is shown on figure 3, by plastifying the extruded blowing of raw material, Quench is shaped to tubular film embryo, specific as follows:
Plastic raw materials polyolefin polymers is at plastic extruder 1 fusion plastification, by round screw thread pipe embryo head
2, cooling vane 3, extrusion plastic pipe embryo 4, pipe embryo cools down in water cooling pond I, water temperature 10 DEG C ± 2 DEG C, and chill time 10 ~ 30 seconds is fast
Speed crystallization, sizing, this is the key production technology thereof control point of biaxial tension product.
Through the man-like shelf 5 being immersed in water cooling pond I, one group of traction guide roller 6, guided by guide roller 7,8,9, by rolling
Molding 10 rolling molding.
Second step, tubular film embryo that will be above-mentioned carry out horizontal and longitudinal synchro-draw after heating, and form tubular film,
Specific as follows:
As shown in Figure 4, the tubular blank 11 after first step rolling molding is being put by transition roller 12,13 on rod frame, logical
Crossing conveying roller group 14, enter in pipe embryo water tank II and preheat, above-mentioned transition roller 13, conveying roller group 14 are positioned in pipe embryo water tank II.
Tubular blank after preheated is subsequently into drawing mechanism；
Drawing mechanism is by lower fixed station 15, leading screw 17, man-like shelf 18, upper fixed station 19, draw roll group 20, upper carry-over pinch rolls
21, inflate pipe 22 of twitching one's mouth and constitute；
Wherein go up fixed station and be positioned at the surface of lower fixed station 15, between upper and lower fixed station, be provided with vertically arranged leading screw
17；Coordinate on leading screw 17 and be provided with draw roll group 20, rotated the up and down motion realizing draw roll group 20, draw roll group 20 by leading screw
Lower end is provided with the man-like shelf 18 synchronizing up and down motion.
Upper fixed station be arranged over gas tube 22 of twitching one's mouth, for pipe embryo 16 is inflated.
As shown in Figure 4, first by gas tube 22 of twitching one's mouth, pipe embryo 16 carried out sufficient air, it is ensured that the diameter of pipe.
Rotated by leading screw, draw roll group 20 is displaced downwardly to position as shown in Figure 5, pipe embryo 16 is compressed, compression
To the 1/4 1/8 of original height, namely pipe embryo is carried out cross directional stretch, form cross directional stretch film 25, by conveying roller group 14
With the speed difference between draw roll group 20 produces the longitudinal stretching to pipe embryo 16, so, be achieved that to pipe embryo 16 longitudinal,
Synchronous cross stretches, and forms biaxial stretching film 26, by guide roller 23, is finally wound into synchro-draw tubular film 24.
3rd step, the rotation cutting of biaxial stretching film
Synchro-draw tubular film by rotate guillotine carry out angled cutting, guillotine as shown in Figure 6, including
The most vertically arranged upper holder 28, lower fixed frame 27；Lower fixed frame 27 upper end is provided with vertically arranged rotary shaft 31, rotates
The upper end of axle 31 is arranged with swivel mount 29, swivel mount 29 and rotary shaft 31 synchronous axial system, and swivel mount frame 29 upper end rotates and is fixed on
The lower end of upper holder 28, is provided with roller bearing in swivel mount, roller bearing is provided with biaxial stretching film 30.It is provided with in the side of swivel mount and cuts open
Cutter 32 and rolling frame 34, the present embodiment cut open cutter 32 and rolling frame 34 is obliquely installed in 45 degree.
Biaxial stretching film 30 carries out rotating cutting through cuing open cutter 32 along rotary shaft 31 in 45 ° of directions, swivel mount 29 and rotating
Axle 31 runs simultaneously, thus cutting Cheng Yuyuan draw direction is the biaxial stretching film 33 of 45 degree, finally by with rotary shaft 31 in 45 °
Winder 34 rolling.
4th step, biaxial stretching film are combined into isotropism tensile tear-resistant film
The compound of the present embodiment is to realize by heat is compound, and thermal composite machine structure, as it is shown in fig. 7, comprises calandria 39, heats
The both sides of body 39 are provided with the axis of guide 38, are respectively provided with unreeling machine 36 outside guide roller 38；The port of export at calandria 39 is provided with sequentially
It is provided with composite roll group 40,41；Guide roller 42, winder 43.
Wherein, the outer surface of calandria scribbles the teflon coating of anti.
Preferably, this calandria is designed to half elliptic, contact area can be regulated by height change.
By the synchro-draw film 45 without cutting described in synchro-draw film 44 and Fig. 9 good for the rotation cutting described in Fig. 8
It is individually placed on the unwinding rack 36 shown in Fig. 7, turns to through the little axis of guide 38, carry out contact heating on the surface of calandria 37,
The surface of fused films rapidly, and under the pressure effect of composite roll group 40,41, be combined with each other, formed as shown in Figure 10
Isotropism tensile tear-resistant film 46.
Example 1
High density polyethylene forms diameter (diameter is typically at 100 1000mm) through the lower blowing water cooling of extrusion,
Thick 2mm(thickness general control is between 0.1---5mm) tubular film embryo, in water-bath (II), (temperature is in maximum crystallization rate institute
Need temperature ± 30 DEG C) in heat, carry out synchro-draw through tubulose synchro-draw mechanism, (diameter is general to produce diameter
Control 4-8 times at pipe embryo diameter), thickness 0.1mm(thickness general control is between the 1/4 1/40 of original pipe flake thickness degree),
Through 45 ° of cuttings, form the oblique synchro-draw film of width 1250-1300mm, be combined with the thin film two-layer of the most rotated cutting
(combined temp be typically based on speed controlling more than melt temperature between 5 50 DEG C), form tensile tear-resistant isotropism
Thin film.
Example 2
High density polyethylene (HDPE) MDPE forms diameter (diameter is typically at 100 1000mm), thick 1.8mm through extrusion-blown modling
The tubular film embryo of (thickness general control is between 0.1---5mm), water-bath (temperature temperature required in maximum crystallization rate ±
30 DEG C) in heat, carry out synchro-draw through tubulose synchro-draw mechanism, (diameter general control is at pipe embryo to produce diameter
4-8 times of diameter), thickness 0.1mm(thickness general control is between the 1/4 1/40 of original pipe flake thickness degree), cut open through 45 °
Cut, form the oblique synchro-draw film of width 1050-1100mm, the compound (combined temp with the thin film two-layer of the most rotated cutting
It is typically based on speed controlling more than melt temperature between 5 50 DEG C), form the isotropic thin film of tensile tear-resistant.
Above-described this utility model embodiment, is not intended that the restriction to this utility model protection domain.Any
Amendment, equivalent and the improvement etc. made within spirit of the present utility model and principle, should be included in this utility model
Protection domain within.
Claims (4)
1. an isotropism tensile tear-resistant film, it is characterised in that include the tubular film through biaxial tension, at tubular film
At least side heat in conjunction be compounded with first after biaxial tension, synchro-draw film of cutting sth. askew after 45 degree are cut sth. askew again.
Isotropism tensile tear-resistant film the most according to claim 1, it is characterised in that each heat in tubular film both sides is combined
Cut sth. askew synchro-draw film.
3. the manufacture device manufacturing isotropism tensile tear-resistant film as claimed in claim 1 or 2, it is characterised in that bag
Include manufacture extrusion device, manufacture stretching device, manufacture guillotine, manufacture heat composite apparatus；
Described manufacture extrusion device includes: the plastic extruder, the end of plastic extruder that are sequentially connected with are provided with circular spiral shell
Coil embryo head；The lower end of round screw thread pipe head is provided with the cooling vane passed for extrusion plastic pipe embryo；Also include cold
Pond I, is soaked with one group of traction guide roller in water cooling pond I, the front end of traction guide roller is provided with man-like shelf, is provided with after traction guide roller
At least three guide roller, finally connects and has rolling forming machine；
Manufacture stretching device by lower fixed station, leading screw, man-like shelf, upper fixed station, draw roll group, upper carry-over pinch rolls, gas tube of twitching one's mouth
Constitute；Wherein go up fixed station and be positioned at the surface of lower fixed station, between upper and lower fixed station, be provided with vertically arranged leading screw；On leading screw
Coordinate and be provided with draw roll group, rotated the up and down motion realizing draw roll group by leading screw；Draw roll group lower end is provided with and synchronizes
The man-like shelf moved up and down；Upper carry-over pinch rolls are positioned at the top of fixed station and at the gas tube of twitching one's mouth that is arranged above of upper carry-over pinch rolls, use
In pipe embryo is inflated；It is provided with transition roller and tubular blank in the front end of conveying roller group along conveying direction；At upper carry-over pinch rolls
Rear be provided with guide roller and winder；Being provided with water cooling pond II, above-mentioned lower fixed station, conveying roller group are dipped in this water cooling pond II
In；
The described guillotine that manufactures includes the most vertically arranged upper holder, lower fixed frame；Lower fixed frame upper end is provided with perpendicular
To the rotary shaft arranged, the upper end of rotary shaft is arranged with swivel mount, swivel mount and rotary shaft synchronous axial system, and swivel mount upper end rotates
Being fixed on the lower end of upper holder, be provided with roller bearing in swivel mount, roller bearing is added is provided with biaxial stretching film；Set in the side of swivel mount
Cut open cutter and rolling frame, cut open cutter and rolling frame is 45 degree and is obliquely installed；Biaxial stretching film is 45 ° of sides through cuing open cutter along rotary shaft
To carrying out rotation cutting, Cheng Yuyuan draw direction is the biaxial stretching film of 45 degree, is finally received by the winder with rotary shaft being 45 °
Volume；
Described manufacture heat composite apparatus includes calandria, and the both sides of calandria are provided with the axis of guide, is respectively provided with one outside guide roller
Individual unreeling machine；The port of export at calandria is provided with and is sequentially provided with composite roll group, guide roller, winder；Wherein, the appearance of calandria
Topcoating has the teflon coating of anti.
The manufacture device of isotropism tensile tear-resistant film the most according to claim 3, it is characterised in that calandria front end
For half elliptic, regulate contact area by height change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620062839.2U CN205588731U (en) | 2016-01-22 | 2016-01-22 | Anti membrane of tearing of isotropic tensile and manufacturing installation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620062839.2U CN205588731U (en) | 2016-01-22 | 2016-01-22 | Anti membrane of tearing of isotropic tensile and manufacturing installation thereof |
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| Publication Number | Publication Date |
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| CN205588731U true CN205588731U (en) | 2016-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904811A (en) * | 2016-01-22 | 2016-08-31 | 范吉廷 | Isotropic tensile and tearing resistant film and manufacture method thereof |
-
2016
- 2016-01-22 CN CN201620062839.2U patent/CN205588731U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904811A (en) * | 2016-01-22 | 2016-08-31 | 范吉廷 | Isotropic tensile and tearing resistant film and manufacture method thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20170122 |