CN208841826U - Film Uniform Tension device - Google Patents
Film Uniform Tension device Download PDFInfo
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- CN208841826U CN208841826U CN201820729118.1U CN201820729118U CN208841826U CN 208841826 U CN208841826 U CN 208841826U CN 201820729118 U CN201820729118 U CN 201820729118U CN 208841826 U CN208841826 U CN 208841826U
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- Prior art keywords
- diaphragm
- heating
- uniform tension
- tension device
- film uniform
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Abstract
The utility model discloses film Uniform Tension devices comprising for guiding the guide structure of diaphragm and carrying out stretching structure stretching in the transverse direction to diaphragm；It further includes carrying out heating structure to diaphragm edge during stretching, and the heating structure includes the uniformly distributed heating blowing component of several channeling directions along the diaphragm；The edge of diaphragm is heated by each heating blowing component of heating structure during stretching, so that the edge of diaphragm is easy to be stretched, greatly increase the uniform region of membrane thicknesses, so that the membrane thicknesses uniformity of production is more preferable, the utilization rate of raw material significantly improves, while improving the production efficiency of diaphragm.
Description
Technical field
The utility model relates to perforated membrane preparation technical fields, and in particular to a kind of film Uniform Tension device.
Background technique
Currently, lithium ion battery separator preparation method is divided into dry and wet；Wherein, wet process is also known as phase separation method or thermotropic
Phase separation method mixes liquid hydrocarbon or some small-molecule substances with polyolefin resin, after heating melting, forms uniform mixing
Object, then cooling is mutually separated, and suppresses to obtain diaphragm, then diaphragm is heated to close to melting temperature, and progress biaxial tension makes point
Subchain orientation, last held for some time elute remaining solvent with volatile substances, can prepare the microporous barrier being mutually communicated
Material.
Wet process diaphragm generally uses ultra-high molecular weight polyethylene as diaphragm main body, and paraffin oil is as pore former, dichloromethane
Alkane is as extract liquor.In the draw stage of the preparation process of diaphragm, the diaphragm after slab is needed by primary longitudinal drawing
It stretches, horizontal drawing twice, in order to obtain the preferable diaphragm of consistency, it is necessary to a large amount of portions in uneven thickness are cut away after drawing process
Point, waste very serious is caused, the practical efficiency of diaphragm is caused generally there was only 40%-60%.Therefore, how diaphragm is improved
It is the key that improve diaphragm production efficiency in the uniformity of draw stage.
To sum up, a kind of film Uniform Tension device improving draw stage uniformity is now provided.
Utility model content
For this purpose, the utility model provides a kind of film Uniform Tension device comprising for guide diaphragm guide structure,
And stretching structure stretching in the transverse direction is carried out to diaphragm；It further includes carrying out heating structure to diaphragm edge during stretching,
The heating structure includes the uniformly distributed heating blowing component of several channeling directions along the diaphragm.
The heating blowing component includes the top for being symmetricly set on the diaphragm above and below, two heating of lower section blowing
Part, the spacing between the heating blowing part and the diaphragm are 1-300mm.
The blow gun of the heating blowing part is set as inclined flat pattern tuyere or round tuyere.
The heating blowing part vertically axis rotation installation.
The hot blast temperature of the heating blowing part is set as 100-180 DEG C, and the frequency of the heating blowing part is 20-80Hz.
The stretching structure is set as horizontal pull-up structure, and the horizontal pull-up structure includes that several length directions along the diaphragm are uniformly distributed
Several horizontal drawing fixtures.
The horizontal drawing fixture is set as round fixture, square fixture or chain-type fixture.
The utility model compared with the existing technology, has the following advantages that place:
Heating structure is set in the present invention, passes through each heating blowing component pair of heating structure during stretching
The edge of diaphragm is heated, so that the edge of diaphragm is easy to be stretched, greatly increases the uniform region of membrane thicknesses,
So that the membrane thicknesses uniformity of production is more preferable, the utilization rate of raw material significantly improves, while improving the production of diaphragm
Efficiency.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is film Uniform Tension schematic device described in the utility model；
Fig. 2 is another schematic diagram of film Uniform Tension device described in the utility model；
Fig. 3 is film Uniform Tension device schematic cross-section described in the utility model；
Description of symbols: the horizontal drawing fixture of 1-；2- heating blowing part；3- diaphragm.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
As shown in Figure 1,2 and 3, a kind of film Uniform Tension device is present embodiments provided comprising for guiding diaphragm 3
Guide structure and stretching structure stretching in the transverse direction is carried out to diaphragm 3；Its further include during stretching to 3 edge of diaphragm into
Row heating structure, the heating structure include the uniformly distributed heating blowing component of several channeling directions along the diaphragm 3.
Heating structure is set in the present embodiment, component is dried to diaphragm by each heating of heating structure during stretching
3 edge is heated, so that the edge of diaphragm 3 is easy to be stretched, greatly increases the region in homogeneous thickness of diaphragm 3,
So that 3 the thickness uniformity of diaphragm of production is more preferable, the utilization rate of raw material significantly improves, while improving the life of diaphragm 3
Produce efficiency.
As preferred embodiment, the heating blowing component includes be symmetricly set on the diaphragm 3 above and below upper
Two heating blowing part 2 of side, lower section, the spacing between the heating blowing part 2 and the diaphragm 3 is 1-300mm.
Wherein, the blow gun of the heating blowing part 2 is set as inclined flat pattern tuyere or round tuyere.
Further, the heating blowing part 2 vertically axis rotation installation, to realize the heating blowing part 2 around upper and lower
360 ° of rotations of axis.
Specifically, the hot blast temperature of the heating blowing part 2 is set as 100-180 DEG C, and the frequency of the heating blowing part 2 is
20-80Hz。
The stretching structure is set as horizontal pull-up structure, and the horizontal pull-up structure includes that several length directions along the diaphragm 3 are equal
Several horizontal drawing fixtures 1 of cloth.
As preferred embodiment, the horizontal drawing fixture 1 is set as round fixture, square fixture or chain-type fixture.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (7)
1. film Uniform Tension device comprising for guiding the guide structure of diaphragm (3) and carrying out lateral drawing to diaphragm (3)
The stretching structure stretched, it is characterised in that: it further includes carrying out heating structure to diaphragm (3) edge during stretching, described to add
Heat structure includes the uniformly distributed heating blowing component of several channeling directions along the diaphragm (3).
2. film Uniform Tension device according to claim 1, it is characterised in that: the heating blowing component includes upper and lower
Be symmetricly set on two heating blowing part (2) of the tops of the diaphragm (3), lower section, heating blowing part (2) with it is described every
Spacing between film (3) is 1-300mm.
3. film Uniform Tension device according to claim 2, it is characterised in that: the blow gun of heating blowing part (2) is set
For inclined flat pattern tuyere or round tuyere.
4. film Uniform Tension device according to claim 2, it is characterised in that: heating blowing part (2) vertically axis
Rotation installation.
5. film Uniform Tension device according to claim 2, it is characterised in that: the hot wind temperature of heating blowing part (2)
Degree is set as 100-180 DEG C, and the frequency of heating blowing part (2) is 20-80Hz.
6. film Uniform Tension device according to claim 1, it is characterised in that: the stretching structure is set as horizontal pull-up structure,
The horizontal pull-up structure includes the uniformly distributed several horizontal drawing fixtures (1) of several length directions along the diaphragm (3).
7. film Uniform Tension device according to claim 6, it is characterised in that: the horizontal drawing fixture (1) is set as round folder
Tool, square fixture or chain-type fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820729118.1U CN208841826U (en) | 2018-05-16 | 2018-05-16 | Film Uniform Tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820729118.1U CN208841826U (en) | 2018-05-16 | 2018-05-16 | Film Uniform Tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208841826U true CN208841826U (en) | 2019-05-10 |
Family
ID=66351539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820729118.1U Active CN208841826U (en) | 2018-05-16 | 2018-05-16 | Film Uniform Tension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208841826U (en) |
-
2018
- 2018-05-16 CN CN201820729118.1U patent/CN208841826U/en active Active
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