CN204869423U - Fuse -element temperature regulating device suitable for production lithium battery separator curtain coating base film - Google Patents
Fuse -element temperature regulating device suitable for production lithium battery separator curtain coating base film Download PDFInfo
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- CN204869423U CN204869423U CN201520588154.7U CN201520588154U CN204869423U CN 204869423 U CN204869423 U CN 204869423U CN 201520588154 U CN201520588154 U CN 201520588154U CN 204869423 U CN204869423 U CN 204869423U
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Abstract
The utility model belongs to the technical field of the technique of lithium battery separator apparatus for producing and specifically relates to a fuse -element temperature regulating device suitable for production lithium battery separator curtain coating base film, including the mount, fixed mounting has an infrared heating board on the mount, and the infrared heating board is on a parallel with fuse -element outflow orientation and sets up with the fuse -element interval, evenly be provided with a plurality of accuse temperature table and a plurality of temperature sensor on the length direction of infrared heating board, accuse temperature table mainly used sets up different temperature, controls the radiant power of infrared heating board, realizes the temperature control of fuse -element, temperature sensor mainly used realizes the control in temperature field. This fuse -element temperature regulating device can pass through the temperature of the hot radiation control fuse -element of infrared heating board in the lithium cell base film is produced, make die head department fuse -element temperature homogeneous, reduces the cooling rate's of fuse -element difference, and the curtain coating base film of producing has the advantage that degree of crystallinity is undulant little, oriented stably, the face outward appearance is good, is favorable to improving the homogeneity of unfamiliar performance.
Description
Technical field
The utility model relates to the technical field of lithium battery diaphragm process units, especially a kind of melt temperature regulating device being applicable to production lithium battery diaphragm curtain coating basement membrane.
Background technology
The technique of producing lithium battery diaphragm mainly contains two kinds: wet processing and dry process.Dry process can be subdivided into again dry method list drawing process and the two drawing process of dry method.Wherein, the master operation adopting dry method list drawing process to produce lithium battery diaphragm has curtain coating, heat treatment, stretching etc.
Curtain coating is the most important operation adopting dry method list drawing process to produce lithium battery diaphragm, its cardinal principle is the lamellar structure of height of formation orientation in a longitudinal direction of being stretched through high magnification by melt polypropylene 3, through casting roller 2 cooling and shaping film forming, obtain curtain coating basement membrane finally by rolling.The curtain coating basement membrane adopting dry method list drawing process to produce has height-oriented lamellar structure and higher rebound degree.Wherein, the regularity of platelet, orientation are one of key indexs of curtain coating basement membrane performance.The performance such as porosity, air permeability, pore-size distribution of performance on barrier film of basement membrane has significant impact.
See accompanying drawing 1, during curtain coating is produced, it is very important that melt 3 flows out to from die head 1 this segment distance dropped on casting roller 2, and the stretching of melt 3 and crystallization are mainly formed on this segment distance.Temperature is the key parameter affecting polyacrylic crystallization process, and the cooldown rate of melt polypropylene 3 directly has influence on the regularity of crystal structure, platelet, even has influence on the stability of melt 3 drawing process.In the production of reality, melt 3 is directly exposed to air after die head 1 flows out, be in the state of nature cooling, its cooldown rate depends primarily on and the heat exchange of external environment, self thermal-radiating impact, therefore after melt polypropylene 3 flows out from die head 1, the cooldown rate of melt 3 is in uncontrolled state, and then makes that the difference in crystallinity of basement membrane becomes large, platelet regularity is deteriorated, and affects the homogeneous of basement membrane performance.When melt 3 cooldown rate difference is larger, can there is flow instabilities in melt 3 under high magnification stretches, and even melt 3 fracture phenomena occurs, have a strong impact on the stability of technique.
Utility model content
The technical problems to be solved in the utility model is: in order to solve the problem proposed in above-mentioned background technology, and the utility model provides a kind of melt temperature regulating device being applicable to produce lithium battery diaphragm curtain coating basement membrane.
The utility model solves the technical scheme that its technical problem adopts: be a kind ofly applicable to the melt temperature regulating device producing lithium battery diaphragm curtain coating basement membrane, comprise fixed mount, described fixed mount is installed with infrared hot plate, described infrared hot plate be parallel to melt flow out direction and and melt interval arrange; The length direction of infrared hot plate is evenly provided with several temperature control tables and several temperature sensors; Described temperature control table is mainly used in arranging different temperature, controls the radiant power of infrared hot plate, and the temperature realizing melt controls; Described temperature sensor is mainly used in the monitoring realizing temperature field.
Further, the infrared hot plate distance melt 1 ~ 3cm described in technique scheme.
Further, the infrared hot plate described in technique scheme is positioned at the top of melt.
The beneficial effects of the utility model: a kind of melt temperature regulating device being applicable to production lithium battery diaphragm curtain coating basement membrane of the present utility model, the temperature of melt can be controlled by the heat radiation of infrared hot plate in lithium battery basement membrane is produced, make die head place melt temperature homogeneous, reduce the difference of the rate of temperature fall of melt, the curtain coating basement membrane produced has the advantage that degree of crystallinity fluctuation is little, orientation is stablized, face outward appearance is good, is conducive to the homogeneity improving membrane properties.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the production structure schematic diagram of curtain coating basement membrane;
Fig. 2 is structural representation of the present utility model.
Label in accompanying drawing is: 1, die head, 2, casting roller, 3, melt, 4, fixed mount, 5, infrared hot plate, 6, temperature control table.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
The utility model is as shown in Figure 2 a kind of is applicable to the melt temperature regulating device producing lithium battery diaphragm curtain coating basement membrane, comprise fixed mount 4, fixed mount 4 is installed with infrared hot plate 5, infrared hot plate 5 is controlled within the scope suitable apart from melt 3 by fixed mount 4, infrared hot plate 5 be parallel to melt 3 flow out direction and and melt 3 interval arrange, infrared hot plate 5 is 1 ~ 3cm apart from the interval of melt 3; The length direction of infrared hot plate 5 is evenly provided with several temperature control tables 6 and several temperature sensors; Temperature control table 6 is mainly used in arranging different temperature, controls the radiant power of infrared hot plate 5, and the temperature realizing melt 3 controls, and the temperature controlled interval of melt 3 is 110 ~ 125 DEG C; Temperature sensor is mainly used in the monitoring realizing temperature field.
Infrared hot plate 5 is positioned at the top of melt, be about to expose the below that aerial melt 3 is placed in infrared hot plate 5, by the effect of infrared hot plate 5 heat radiation heating, the temperature of melt 3 is controlled within limits, realize the controlled of melt 3 rate of temperature fall, improve the regularity of platelet, the stability of technique.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to right.
Claims (3)
1. one kind is applicable to the melt temperature regulating device producing lithium battery diaphragm curtain coating basement membrane, it is characterized in that: comprise fixed mount (4), described fixed mount (4) is installed with infrared hot plate (5), described infrared hot plate (5) be parallel to melt (3) flow out direction and and melt (3) interval arrange; The length direction of infrared hot plate (5) is evenly provided with several temperature control table (6) and several temperature sensors; Described temperature control table (6) is mainly used in arranging different temperature, controls the radiant power of infrared hot plate (5), and the temperature realizing melt (3) controls; Described temperature sensor is mainly used in the monitoring realizing temperature field.
2. a kind of melt temperature regulating device being applicable to production lithium battery diaphragm curtain coating basement membrane according to claim 1, is characterized in that: described infrared hot plate (5) distance melt 1 ~ 3cm.
3. a kind of melt temperature regulating device being applicable to production lithium battery diaphragm curtain coating basement membrane according to claim 1, is characterized in that: described infrared hot plate (5) is positioned at the top of melt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588154.7U CN204869423U (en) | 2015-08-06 | 2015-08-06 | Fuse -element temperature regulating device suitable for production lithium battery separator curtain coating base film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588154.7U CN204869423U (en) | 2015-08-06 | 2015-08-06 | Fuse -element temperature regulating device suitable for production lithium battery separator curtain coating base film |
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| Publication Number | Publication Date |
|---|---|
| CN204869423U true CN204869423U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520588154.7U Active CN204869423U (en) | 2015-08-06 | 2015-08-06 | Fuse -element temperature regulating device suitable for production lithium battery separator curtain coating base film |
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| CN (1) | CN204869423U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785613A (en) * | 2016-12-01 | 2018-03-09 | 万向二三股份公司 | Lithium battery diaphragm online dry technology |
-
2015
- 2015-08-06 CN CN201520588154.7U patent/CN204869423U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785613A (en) * | 2016-12-01 | 2018-03-09 | 万向二三股份公司 | Lithium battery diaphragm online dry technology |
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