CN206277651U - A kind of material two-way stretch device - Google Patents
A kind of material two-way stretch device Download PDFInfo
- Publication number
- CN206277651U CN206277651U CN201621321125.5U CN201621321125U CN206277651U CN 206277651 U CN206277651 U CN 206277651U CN 201621321125 U CN201621321125 U CN 201621321125U CN 206277651 U CN206277651 U CN 206277651U
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- Prior art keywords
- boss
- stretched
- way stretch
- tensioning wheel
- stretching
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- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The utility model discloses a kind of material two-way stretch device, including plasticizing equipment, transitional facility, mouth mold, calender, transversal stretching device, longitudinal tensile fixture and traction wrap-up, they are sequentially connected in series and form, so as to constitute the system that can carry out biaxial tension to plastic sheet, film；Described transversal stretching device includes tensioning wheel A, lift, streamlined boss, arch nip rolls and tensioning wheel B；After the material that is stretched enters transverse drawing mill, material is tensed by the tensioning wheel A of rear and front end and tensioning wheel B；The upward power that the material that is stretched is given by boss, boss is fixed on lifting platform, and when lifting platform rises, the difference in height between boss and the material inlet that is stretched becomes big, boss increases with the contact area of the storeroom that is stretched with active force, and the cross directional stretch rate of the material that is stretched becomes big；Longitudinal stretching machine uses differential stretching mode, is made up of one group of different roller of rotating speed, and longitudinal stretching is realized by the speed discrepancy between front and rear roller.
Description
Technical field
The present invention relates to the stretching technique of stretching technique field, especially plastic material.
Background technology
Planar stretch method is that the melt or solution of high molecular polymer are made into sheet material or film by long and narrow head first,
Then in special stretching-machine, at a certain temperature with the speed of setting under, while or being distributed in vertical both direction
On stretched, and by appropriate cooling and heat treatment or special be processed into.
In the production technology of biaxial tension, high polymer changes high polymer point in the stretching respectively of transverse and longitudinal both direction
The arrangement of son and segment, makes it have the planar orientation of height, and crystallinity is improved, and its aggregated structure changes material
Performance.
And it is most of at present all using simple tension, the cross directional stretch machinery structure in biaxial tension equipment is often more multiple
Miscellaneous, relatively costly, draw efficiency is low, and stretching uniformity has much room for improvement.
The content of the invention
The invention provides a kind of straightforward procedure that biaxial tension can be carried out to plastic sheet, film.
The present invention is as follows using technical scheme：
A kind of material two-way stretch device, including plasticizing equipment, transitional facility, mouth mold, calender, transversal stretching device,
Longitudinal tensile fixture and traction wrap-up, they are sequentially connected in series and form, thus constitute plastic sheet, film can be carried out it is two-way
The system of stretching.Described transversal stretching device includes tensioning wheel A, lift, streamlined boss, arch nip rolls and tensioning wheel
B。
A kind of material two-way stretch device of the present invention, plastics are by plasticizing equipment output by transitional facility and mouth mold and pressure
Obtained after ray machine.Wherein transitional facility can be stacking device, the every mechanical property for improving material, be easy to behind
Stretch processing is carried out, mouth mold determines the specification of material, and calender improves the surface smoothness of material, ensures that thickness is uniform.
Tensioning wheel gives tensile force to a certain extent.During by streamlined boss, because boss height is highly and convex higher than material
The reason for playscript with stage directions figure shape, stretched laterally.Extensibility can be adjusted by the height of lifting platform adjustment boss
It is whole.It is unfolded laterally when the material after cross directional stretch is by nip rolls, drawn into longitudinal direction by is tensioned after tensioning wheel B
Machine is stretched, is finally collected by traction wrap-up.
A kind of material two-way stretch device of the present invention, after the material that is stretched enters transverse drawing mill, material is by rear and front end
Tensioning wheel A and tensioning wheel B tense, because the height of now boss is higher than material inlet is stretched highly, the material that is stretched is received
To the upward power that boss gives, so as to be stretched along boss surface, the purpose of cross directional stretch is reached.Boss is fixed on lifting
On platform, when lifting platform rises, the difference in height between boss and the material inlet that is stretched becomes big, and boss connects with the storeroom that is stretched
Contacting surface product increases with active force, and the cross directional stretch rate of the material that is stretched becomes big.When lifting platform declines, boss and the material that is stretched
Difference in height between material entrance diminishes, and boss reduces with the contact area of the storeroom that is stretched with active force, and be stretched material
Cross directional stretch rate diminishes.
A kind of material two-way stretch device of the present invention, when the material that is stretched passes through boss, the center section of material is by boss
Jack-up, and boss radian is bigger, by the higher of jack-up, more by the part of jack-up, material is by the extensibility of cross directional stretch for material
It is bigger.
A kind of material two-way stretch device of the present invention, the height of projection of boss gradually increases, and sectional curvature from high to low, is protected
The cross directional stretch for having demonstrate,proved material steadily and can be carried out rapidly.
A kind of material two-way stretch device of the present invention, for the film of thinner thickness, if being directly over volume after cross directional stretch
Cylinder easily produces fold, now can be as follows using scheme：In horizontal degree of crook from high to low, be stretched boss material
Gradually become gentle by bending when being stretched along boss surface, be finally flattened in boss end.
A kind of material two-way stretch device of the present invention, if material can not be fully contacted with boss surface will make material not
Can be sufficiently tensile, a series of cylindrical roller can be arranged in boss surface, so that material laminating boss surface.
A kind of material two-way stretch device of the present invention, nip rolls used can be according to actually used material quilt after cross directional stretch
Specific situation after stretching is selected, such as arch nip rolls, edge nip rolls, left and right screw thread nip rolls.
A kind of material two-way stretch device of the present invention, longitudinal stretching machine uses differential stretching mode, different by one group of rotating speed
Roller composition, realize longitudinal stretching by the speed discrepancy between front and rear roller.
A kind of material two-way stretch device of the present invention, needs to be equipped with corresponding heat conduction, heating and cooling system when actually used
System.
A kind of material two-way stretch device of the present invention uses new horizontal stretching structure, it is easy to accomplish with operation, can be effective
Restrained stretching multiplying power, equipment operates steadily, it is possible to decrease bidirectional stretching system cost, improve production efficiency.
Brief description of the drawings
Fig. 1 is a kind of structural representation of material two-way stretch device of the invention.
Fig. 2 is a kind of stretching change schematic diagram of material two-way stretch device of the invention.
Fig. 3 is that a kind of material two-way stretch device of the invention is stretched position view of the material on all parts.
Fig. 4 is a kind of material two-way stretch device transversal stretching device schematic diagram of the invention.
Fig. 5 is a kind of material two-way stretch device longitudinal tensile fixture schematic diagram of the invention.
Fig. 6 is a kind of shape graph of the material two-way stretch device material of the invention on boss top layer.
Fig. 7 is the longitdinal cross-section diagram of streamlined boss in a kind of material two-way stretch device of the invention.
Fig. 8 is a series of view in transverse section groups of streamlined boss edge longitudinal direction in a kind of material two-way stretch device of the invention
Figure.
Fig. 9 is a series of longitudinal cross-section of streamlined boss and cylinder contacts in a kind of material two-way stretch device of the invention
Figure.
Figure 10 is a series of transverse cutting of streamlined boss and cylinder contacts in a kind of material two-way stretch device of the invention
Face figure.
In figure, 1- plasticizing equipment, 2- transitional facilities, 3- mouth molds, 4- calenders, 5- tensioning wheels A, 6- lift, 7- streamlines
Type boss, 8- nip rolls, 9- tensioning wheels B, 10- longitudinal tensile fixture, 11- traction wrap-ups, 12- is stretched material.
Specific embodiment
A kind of material two-way stretch device of the present invention, as shown in figure 1, including plasticizing equipment 1, transitional facility 2, mouth mold 3, pressure
Ray machine 4, transversal stretching device, longitudinal tensile fixture 10 and traction wrap-up 11, are sequentially connected in series and form, so that constitute can be to modeling
The system that media sheet, film carry out biaxial tension.Described transversal stretching device includes tensioning wheel A5, lift 6, streamlined convex
Platform 7, nip rolls 8 and tensioning wheel B9.
A kind of material two-way stretch device of the present invention, as shown in Figure 2,3, plastics are extruded by plasticizing equipment 1 and set by transition
Standby 2 and mouth mold 3 and calender 4 after obtain.Wherein transitional facility 2 can be stacking device, the every mechanics for improving material
Combination property, is easy to followed by stretch processing, and mouth mold 3 determines the specification of material, and calender 4 improves the surface light of material
Cleanliness, guarantee thickness are uniform.Tensioning wheel 5 gives tensile force to a certain extent.During by streamlined boss 7, because boss is high
Degree higher than material height and boss in itself shape the reason for, laterally stretched.Extensibility can be adjusted by lifting platform 6
The height of whole boss is adjusted.It is unfolded laterally when the material after cross directional stretch is by nip rolls 8, by opening
It is tensioned after bearing up pulley B9 into longitudinal stretching machine 10, is finally collected by traction wrap-up 11.
A kind of material two-way stretch device of the present invention, as shown in figure 4, after the material that is stretched enters transverse drawing mill, material
Tensed by the tensioning wheel A5 of rear and front end and tensioning wheel B9, because now the height of boss is higher than to be stretched material inlet highly,
The upward power that the material that is stretched is given by boss, so as to be stretched along boss surface, reaches the purpose of cross directional stretch.It is convex
Platform 7 is fixed on lifting platform 6, and when lifting platform 6 rises, difference in height between boss and the material inlet that is stretched becomes big, boss with
The contact area of storeroom that is stretched and active force increase, and the cross directional stretch rate of the material that is stretched becomes big.When lifting platform 6 declines
When, under the difference in height between boss and the material inlet that is stretched becomes, boss is equal with active force with the contact area of the storeroom that is stretched
Reduce, the cross directional stretch rate of the material that is stretched diminishes.
A kind of material two-way stretch device of the present invention, as shown in fig. 6, when the material 12 that is stretched is by boss, in material
Between part by boss jack-up, and boss radian is bigger, and, by the higher of jack-up, more by the part of jack-up, material is by transverse direction for material
The extensibility of stretching is bigger.
A kind of material two-way stretch device of the present invention, as shown in fig. 7, the height of projection of boss gradually increases, sectional curvature
From high to low, it is ensured that the cross directional stretch of material steadily can be rapidly performed by again.
A kind of material two-way stretch device of the present invention, for the film of thinner thickness, if being directly over volume after cross directional stretch
Cylinder easily produces fold, can now use scheme as shown in Figure 8, and boss from high to low, is drawn in horizontal sectional curvature
Stretch and gradually become gentle by bending when material is stretched along boss surface, be finally flattened in boss end.
A kind of material two-way stretch device of the present invention, if material can not be fully contacted with boss surface will make material not
Can be sufficiently tensile, as shown in Fig. 9,10, a series of cylindrical roller can be arranged in boss surface, so that material laminating is convex
Platform surface.
A kind of material two-way stretch device of the present invention, as shown in figure 4, nip rolls 8 used after cross directional stretch can be according to reality
Specific situation after border material therefor is stretched is selected, such as arch nip rolls, edge nip rolls, left and right screw thread nip rolls
Deng.
A kind of material two-way stretch device of the present invention, as shown in figure 5, longitudinal stretching machine 10 uses differential stretching mode, by
The different roller composition of one group of rotating speed, longitudinal stretching is realized by the speed discrepancy between front and rear roller.
A kind of material two-way stretch device of the present invention, needs to be equipped with corresponding heat conduction, heating and cooling system when actually used
System.
Claims (8)
1. a kind of material two-way stretch device, it is characterised in that：Including plasticizing equipment, transitional facility, mouth mold, calender, transverse direction
Stretching device, longitudinal tensile fixture and traction wrap-up, they are sequentially connected in series and form, so that constitute can be to plastic sheet, thin
The system that film carries out biaxial tension；Described transversal stretching device includes tensioning wheel A, lift, streamlined boss, arch flattening
Roller and tensioning wheel B；After the material that is stretched enters transverse drawing mill, material is tensed by the tensioning wheel A of rear and front end and tensioning wheel B；
The upward power that the material that is stretched is given by boss, boss is fixed on lifting platform, when lifting platform rises, boss with drawn
Stretch the difference in height between material inlet and become big, boss increases with the contact area of the storeroom that is stretched with active force, and be stretched material
The cross directional stretch rate of material becomes big；Longitudinal stretching machine uses differential stretching mode, is made up of one group of different roller of rotating speed, by preceding
Speed discrepancy between roller realizes longitudinal stretching afterwards.
2. a kind of material two-way stretch device according to claim 1, it is characterised in that：Transitional facility is stacking device.
3. a kind of material two-way stretch device according to claim 1, it is characterised in that：The height of projection of boss gradually increases
Height, sectional curvature is from high to low.
4. a kind of material two-way stretch device according to claim 1, it is characterised in that：Boss is in horizontal degree of crook
From high to low, the material that is stretched gradually becomes gentle when being stretched along boss surface by bending, is finally flattened in boss end.
5. a kind of material two-way stretch device according to claim 1, it is characterised in that：Arrange a series of in boss surface
Cylindrical roller so that material laminating boss surface.
6. a kind of material two-way stretch device according to claim 1, it is characterised in that：Flattening used after cross directional stretch
Specific situation after roller can be stretched according to actually used material is selected.
7. a kind of material two-way stretch device according to claim 1, it is characterised in that：Arch nip rolls is replaced by side
Edge nip rolls or left and right screw thread nip rolls.
8. a kind of material two-way stretch device according to claim 1, it is characterised in that：Each device needs to be equipped with accordingly
Heat conduction, heating and cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321125.5U CN206277651U (en) | 2016-12-05 | 2016-12-05 | A kind of material two-way stretch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321125.5U CN206277651U (en) | 2016-12-05 | 2016-12-05 | A kind of material two-way stretch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206277651U true CN206277651U (en) | 2017-06-27 |
Family
ID=59075930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621321125.5U Expired - Fee Related CN206277651U (en) | 2016-12-05 | 2016-12-05 | A kind of material two-way stretch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206277651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378925A (en) * | 2016-12-05 | 2017-02-08 | 北京化工大学 | Bidirectional stretching device for material |
-
2016
- 2016-12-05 CN CN201621321125.5U patent/CN206277651U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378925A (en) * | 2016-12-05 | 2017-02-08 | 北京化工大学 | Bidirectional stretching device for material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170627 Termination date: 20191205 |