CN208615265U - Wet process diaphragm membrane preparation facilities - Google Patents
Wet process diaphragm membrane preparation facilities Download PDFInfo
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- CN208615265U CN208615265U CN201820659199.2U CN201820659199U CN208615265U CN 208615265 U CN208615265 U CN 208615265U CN 201820659199 U CN201820659199 U CN 201820659199U CN 208615265 U CN208615265 U CN 208615265U
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- Prior art keywords
- diaphragm
- wet process
- preparation facilities
- membrane preparation
- temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses wet process diaphragm membrane preparation facilities comprising the cooling and shaping structure for the extrusion structure of extruded polymer melt and for forming diaphragm；It further includes that control is adjusted to obtain the thickness control structure of the thin diaphragm in thick middle periphery to diaphragm thickness when forming close to the cooling and shaping structure setting；Diaphragm thickness is adjusted by the thickness control structure in diaphragm forming process, to obtain the thin diaphragm in thick middle periphery, and then the uniform diaphragm of thickness can be obtained after diaphragm drawn；So not only diaphragm improves draw stage uniformity, but also improves diaphragm utilization rate, avoids waste of material as far as possible.
Description
Technical field
The utility model relates to perforated membrane preparation technical fields, and in particular to a kind of wet process diaphragm membrane preparation facilities.
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 wet process diaphragm membrane preparation facilities can be improved draw stage uniformity is now provided.
Utility model content
For this purpose, the utility model provides a kind of wet process diaphragm membrane preparation facilities comprising molten for extruded polymer
The extrusion structure of body and cooling and shaping structure for forming diaphragm；It further includes close to the cooling and shaping structure setting
Control is adjusted to obtain the thickness control structure of the thin diaphragm in thick middle periphery in diaphragm thickness when to molding.
The cooling and shaping structure includes roller rest and forming roller, and the thickness control structure includes setting close to the forming roller
Adjusting mould and carrying out temperature to the adjusting mould for setting adjusts the temperature adjustment component controlled, wherein described in the adjusting mould contact
Diaphragm adjusts the concave structure that face is in two head process of middle concave.
The temperature adjustment component includes several heating elements being evenly arranged below the adjusting face for adjusting mould, the heating unit
Part makes the adjusting face form the heating intervals of several independent temperature controls.
The number of the heating interval is set as 5~15, and the temperature control range of the heating interval is 60 °~250 °.
Temperature sensor is additionally provided in the heating interval and according to the detection temperature of temperature sensor in heating interval
Heating element carry out temperature adjusting PLC controller.
The thickness control structure further includes pressure regulating mechanism.
The pressure regulating mechanism includes several screw-rod structures being distributed in below the adjusting mould, the screw-rod structure
Screw rod end offsets with the bottom surface for adjusting mould.
The pressure limit of the pressure regulating mechanism is 700Kgf~2500Kgf.
The utility model compared with the existing technology, has the following advantages that place:
In the present invention, diaphragm thickness is adjusted by the thickness control structure in diaphragm forming process,
To obtain the thin diaphragm in thick middle periphery, and then the uniform diaphragm of thickness can be obtained after diaphragm drawn；So not
Only diaphragm improves draw stage uniformity, and improves diaphragm utilization rate, avoids waste of material as far as possible.
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 wet process diaphragm membrane preparation facilities schematic diagram described in the utility model；
Fig. 2 is another schematic diagram of wet process diaphragm membrane preparation facilities described in the utility model；
Fig. 3 is wet process diaphragm membrane preparation facilities schematic cross-section described in the utility model；
Description of symbols: 1- diaphragm；2- roller rest；3- forming roller；4- adjusts mould；5- heating element；6- pressure adjusts knot
Structure.
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 wet process diaphragm membrane preparation facilities is present embodiments provided comprising for squeezing out
The extrusion structure of polymer melt and cooling and shaping structure for forming diaphragm 1；It further includes close to the cooling and shaping
Control is adjusted to obtain the thickness control knot of the thin diaphragm 1 in thick middle periphery in 1 thickness of diaphragm when structure setting is to molding
Structure.
In the present embodiment, 1 thickness of diaphragm is adjusted by the thickness control structure in 1 forming process of diaphragm,
To obtain the thin diaphragm 1 in thick middle periphery, and then the uniform diaphragm of thickness can be obtained after 1 drawn of diaphragm；So
Not only diaphragm 1 improves draw stage uniformity, but also improves 1 utilization rate of diaphragm, avoids waste of material as far as possible.
Specifically, the cooling and shaping structure includes roller rest 2 and forming roller 3, and the thickness control structure includes close to institute
State the temperature adjustment component for adjusting mould 4 and temperature adjusting control is carried out to the adjusting mould 4 of the setting of forming roller 3, wherein the tune
Section mould 4 contacts the adjusting face of the diaphragm 1 in the concave structure of two head process of middle concave.
Further, the temperature adjustment component includes several heating elements 5 being evenly arranged below the adjusting face for adjusting mould 4,
The heating element 5 makes the adjusting face form the heating intervals of several independent temperature controls.Wherein, the number of the heating interval is set
It is 5~15, the temperature control range of the heating interval is 60 °~250 °.As preferred embodiment, temperature control range is 150 °
~250 DEG C；In this way, so that diaphragm after molding 1 has multiple and different thickness, so as to sufficiently meet draw stage
Deformation Demands, and then guarantee drawn to the full extent treated the thickness uniformity of diaphragm.
As preferred embodiment, temperature sensor is additionally provided in the embodiment of the present invention heating interval and according to temperature
The detection temperature of sensor carries out the PLC controller of temperature adjusting to the heating element 5 in heating interval；So as to right in time
The heating temperature of heating interval is adjusted.
The thickness control structure further includes pressure regulating mechanism 6.
The pressure regulating mechanism 6 includes several screw-rod structures for being distributed in 4 lower section of adjusting mould, the screw-rod structure
Screw rod end and it is described adjust mould 4 bottom surface offset, wherein the pressure limit of the pressure regulating mechanism 6 be 700Kgf~
2500Kgf；The spacing adjusted between face and the forming roller 3 for adjusting mould 4 can be carried out by the screw-rod structure
Whole fine tuning or region fine tuning, to realize the adjusting to the molding thickness of the diaphragm 1.
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 (8)
1. wet process diaphragm membrane preparation facilities comprising for the extrusion structure of extruded polymer melt and for shaping membrane
The cooling and shaping structure of piece (1), it is characterised in that: it further includes close to the cooling and shaping structure setting to diaphragm when forming
(1) control is adjusted to obtain the thickness control structure of the thin diaphragm in thick middle periphery (1) in thickness.
2. wet process diaphragm membrane preparation facilities according to claim 1, it is characterised in that: the cooling and shaping structure includes
Roller rest (2) and forming roller (3), the thickness control structure include the adjusting mould (4) and right close to the forming roller (3) setting
Described adjust mould (4) carry out the temperature adjustment component that temperature adjusts control, wherein the tune for adjusting mould (4) and contacting the diaphragm (1)
Nodal section is in the concave structure of two head process of middle concave.
3. wet process diaphragm membrane preparation facilities according to claim 2, it is characterised in that: the temperature adjustment component includes several
The heating element (5) being evenly arranged below the adjusting face for adjusting mould (4), the heating element (5) form the adjusting face
The heating interval of several independent temperature controls.
4. wet process diaphragm membrane preparation facilities according to claim 3, it is characterised in that: the number of the heating interval is set
It is 5~15, the temperature control range of the heating interval is 60 °~250 °.
5. wet process diaphragm membrane preparation facilities according to claim 3, it is characterised in that: be additionally provided in the heating interval
Temperature sensor and temperature adjusting is carried out to the heating element (5) in heating interval according to the detection temperature of temperature sensor
PLC controller.
6. wet process diaphragm membrane preparation facilities according to claim 2, it is characterised in that: the thickness control structure is also wrapped
Include pressure regulating mechanism (6).
7. wet process diaphragm membrane preparation facilities according to claim 6, it is characterised in that: the pressure regulating mechanism (6)
Including several screw-rod structures being distributed in below adjusting mould (4), the screw rod end of the screw-rod structure and the adjusting mould
(4) bottom surface offsets.
8. wet process diaphragm membrane preparation facilities according to claim 6, it is characterised in that: the pressure regulating mechanism (6)
Pressure limit be 700Kgf~2500Kgf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820659199.2U CN208615265U (en) | 2018-05-04 | 2018-05-04 | Wet process diaphragm membrane preparation facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820659199.2U CN208615265U (en) | 2018-05-04 | 2018-05-04 | Wet process diaphragm membrane preparation facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208615265U true CN208615265U (en) | 2019-03-19 |
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ID=65700125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820659199.2U Active CN208615265U (en) | 2018-05-04 | 2018-05-04 | Wet process diaphragm membrane preparation facilities |
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| Country | Link |
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| CN (1) | CN208615265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466415A (en) * | 2018-05-04 | 2018-08-31 | 湖南烁普新材料有限公司 | Wet method diaphragm membrane preparation facilities and preparation method |
-
2018
- 2018-05-04 CN CN201820659199.2U patent/CN208615265U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466415A (en) * | 2018-05-04 | 2018-08-31 | 湖南烁普新材料有限公司 | Wet method diaphragm membrane preparation facilities and preparation method |
| CN108466415B (en) * | 2018-05-04 | 2023-11-24 | 湖南烁普新材料有限公司 | Wet diaphragm membrane preparation device and preparation method |
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