CN204208768U - A kind of coating machine drying box - Google Patents
A kind of coating machine drying box Download PDFInfo
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- CN204208768U CN204208768U CN201420581777.7U CN201420581777U CN204208768U CN 204208768 U CN204208768 U CN 204208768U CN 201420581777 U CN201420581777 U CN 201420581777U CN 204208768 U CN204208768 U CN 204208768U
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Abstract
The utility model discloses a kind of coating machine drying box, comprise casing, box house is provided with heater, also carrying roller is provided with in casing dry section, by coating rear electrode sheet on carrying roller, casing is divided into the first air intake district and the second air intake district, is provided with the first blast pipe and heater in the first air intake district, and the outlet air end in the first air intake district is provided with the first dry section; Second inside, air intake district is provided with the second blast pipe and heater, and the outlet air end in the second air intake district is provided with the second dry section, the second dry section is provided with the dry tuyere of interlude and the dry tuyere of end.The purpose of this utility model is intended to provide a kind of drying efficiency high, to maintain an equal level stream mode, effectively can eliminate the laminar condition in boundary layer, can not cause the coating machine drying box of disadvantage to coating in drying at the initial stage of drying coating protection of coating.
Description
Technical field
The utility model belongs to lithium battery technical field of processing equipment, specifically relates to a kind of coating machine drying box.
Background technology
In lithium battery manufacture process, on electrode slice after painting process, need to carry out drying and processing to the coating that electrode slice is coated with, in drying course, the cated electrode slice of coating being placed in the drying channel of coating machine through being made up of multiple baking oven on conveyer, in baking oven, to conveyer blowing hot-air, the moisture in coating being evaporated by tuyere.
Existing drying box is mostly impact type drying box, and namely the hot-air of drying box heating clamber directly blows to the desiccated surface of electrode slice by blower fan, and this drying mode air velocity is soft, can not damage coating surface, can be good at the uniformity keeping coating.But in this drying mode, the place that the coating surface of electrode slice contacts with hot blast and boundary layer are laminar condition.Drying box provides enough heats makes solvent move to coating surface, in this process, boundary layer becomes laminar condition very soon, and evaporation stopped, even if input energy again, the heating-up temperature of coating is raised, but it is less to the desiccation of coating, coating shortened in the drying time of constant rate drying period, and rate of drying reduces, and caused staff to need to regulate the output speed of live-roller, keep dry effect, and drying efficiency is lower.
Utility model content
For above-mentioned weak point of the prior art, the purpose of this utility model is intended to provide a kind of drying efficiency high, to maintain an equal level stream mode at the initial stage of drying coating protection of coating, effectively can eliminate the laminar condition in boundary layer in drying, the coating machine drying box of disadvantage can not be caused coating.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of coating machine drying box, it comprises casing, box house is provided with heater, is also provided with carrying roller in casing dry section, by coating rear electrode sheet on carrying roller, casing is divided into the first air intake district and the second air intake district, be provided with the first blast pipe and heater in first air intake district, the outlet air end in the first air intake district is provided with the first dry section, the first dry section is provided with the dry tuyere of initial segment, second inside, air intake district is provided with the second blast pipe and heater, and the outlet air end in the second air intake district is provided with the second dry section, the second dry section is provided with the dry tuyere of interlude and the dry tuyere of end, the outlet air end of the dry tuyere of initial segment to the distance values on electrode slice surface is greater than the distance values of outlet air end to electrode slice surface of the dry tuyere of interlude and the dry tuyere of end, because the coating contained humidity of initial segment is more, if the hypotelorism between the dry tuyere outlet air end of initial segment and electrode slice surface, the dry tuyere of initial segment hot blast out can produce the disadvantage of hole shape in coating, have impact on the uniformity of coating, electrode slice quality is impacted, in order to eliminate hole shape disadvantage, require that the outlet air end of the dry tuyere of initial segment makes coating condense away from providing enough hot blasts while electrode slice surface, first dry section and the second dry section are juxtaposed on box house, carrying roller is provided with in first dry section and the second dry section, carrying roller in first dry section is drive roll, carrying roller in second dry section is driven roll, the setting of drive roll makes, in order to make electrode slice keep flat state, to prevent electrode slice from bending and impact the uniformity of coating.
Preferably, the outlet air end internal diameter of the dry tuyere of adjacent two initial segments is identical, and the outlet air end internal diameter of the dry tuyere of adjacent two interludes is identical, and the outlet air end internal diameter of the dry tuyere of adjacent end varies in size; The outlet air end internal diameter of the dry tuyere of interlude is greater than the outlet air end internal diameter of the dry tuyere of initial segment.The outlet air end internal diameter of the dry tuyere of initial segment is identical is to make coating suitable by its condensation degree when the first dry section, because within the identical time, the hot blast air quantity arriving electrode slice surface is identical, because the material of coating is suitable with water content, under identical environment, the moisture that coating is evaporated is identical, and then the condensation degree of coating is suitable, there will not be partial coating also not condensing through after the first dry section; The outlet air end internal diameter of the dry tuyere of interlude is greater than the outlet air end internal diameter of the dry tuyere of initial segment, arranging so further makes coating condense, from common practise, the dry tuyere outlet air end of interlude hot-air flow pressure is out less relative to the dry tuyere outlet air end of initial segment hot-air flow pressure out, and electrode slice surface distance is nearer in the outlet air end of the dry tuyere of interlude, less stream pressure can not impact coating, and the dry tuyere of interlude also carries out drying to it while realizing condensation further to the coating entering the second dry section.
Preferably, the outlet air end internal diameter of the dry tuyere of end reduces from left to right successively.Coating through the drying of the interlude dry tuyere nuclei of condensation is enough solid, but also contain a certain amount of moisture in coating for getting rid of, namely coating does not also reach dry requirement, coating moisture through the drying of the interlude dry tuyere nuclei of condensation has been reduced to a specific numerical value, at this time in order to ensure that this part moisture can remove from layer, require that the dry tuyere of end can provide enough hot blasts and enough hot-air flow pressure, the outlet air end internal diameter of the dry tuyere of end reduces to guarantee that hot-air flow pressure increases successively from left to right successively, and the increase of stream pressure can not impact the uniformity of coating and outward appearance.
Preferably, filter is provided with between the outlet air end of the dry tuyere of initial segment and electrode slice.Arranging of filter can guarantee that the dry tuyere of initial segment hot-air flow out can not cause damage to coating, broken up after the dry tuyere of initial segment thermal current out arrives filter, because filter is network structure, these are passed filter to coating surface by the air-flow broken up, in this process, filter is equivalent to the dry tuyere of initial segment hot blast kinetic energy arrester out, filter consumes a part of airflow kinetic energy, the hot blast kinetic energy of arrival coating surface is reduced, prevents hot-air flow to the infringement of coating.
Preferably, the first dry section is also provided with discharge pipe, the outlet air end of discharge pipe is connected with the second dry section.Because the tuyere in the second dry section is more, the hot blast deficiency that only just dependence second air intake district provides thinks that the second dry section provides enough hot blast air quantity, in order to ensure the hot blast having q.s in the second dry section, by discharge pipe, hot blast two unnecessary in the first dry section is guided in the second dry section, the hot blast air quantity of the second dry section is supplemented.
Preferably, discharge pipe inside is provided with check-valves.As convention, stream pressure in second dry section can lower than the stream pressure in the first dry section, but, at work, if the gas flow temperature in the second dry section is too high, can make in airflow reflux to the first dry section in the second dry section, stream pressure in the second dry section is caused to reduce, further the drying of coating being impacted, in order to prevent the backflow of air-flow in the second dry section, it is necessary that check-valves being set in discharge pipe.
Preferably, the spacing between adjacent two drive roll outer rims is less than the spacing between adjacent two driven roll outer rims.The Main Function of drive roll prevents from electrode slice from bending at initial segment to impact the uniformity of coating, if drive roll arrangement is too loose, electrode slice can be bending under the acting in conjunction of stream pressure and coating gravity, causes the uniformity of coating to be affected.
Operation principle of the present utility model is:
Heater in first air intake district heats the cold wind that the first blast pipe is come in, cold wind is become hot blast, hot blast enters the first dry section, a hot blast part in first dry section is heated the electrode slice coating just entering drying box through filter by the dry tuyere of initial segment, and another part hot blast enters the second dry section by discharge pipe; Heater in second air intake district heats the cold wind that the second blast pipe is come in, and the cold wind that the second blast pipe is come in is become hot blast, discharges the drying realized coating after hot blast enters the second dry section by the dry tuyere of interlude and the dry tuyere of end.
At work, the electrode slice coating solvents just having entered the first dry section is more, coating is in disperse state, the dry tuyere of initial segment hot blast out carries out drying to the electrode slice coating entering housing, make to be condensed by the electrode slice coating of the first dry section, after the coating of condensing enters the second dry section, blowing mouth while strengthening the second dry section hot blast output quantity, is used to eliminate the laminar condition in boundary layer.
At work, in order to ensure the air output of the second dry section, first dry section and the second dry section realize complementation by discharge pipe, namely the main purpose of the first dry section is the condensation of electrode slice coating, because the condensation of electrode slice coating is little to hot blast demand, discharge pipe on first dry section is implemented to supplement to the hot blast rate in the second dry section, guarantees the air output of the second dry section.
Compared with prior art, the beneficial effects of the utility model are:
Eliminate the disadvantage that coating initial stage of drying hot blast produces coating, improve the dry mass of coating, indirectly improve the product quality of electrode slice; In whole dry run, boundary layer there will not be laminar condition, improves the drying efficiency of coating; In whole dry run, the uniformity of coating is guaranteed, and there will not be the bending problem causing coating uneven due to electrode slice; In whole dry run, coating is condensation slowly, eliminates the dry excessive hidden danger of coating.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
As shown in Figure 1, a kind of coating machine drying box, comprise casing 1, casing 1 inside is provided with heater 4, also carrying roller is provided with in casing 1 dry section, by coating rear electrode sheet 17 on carrying roller, casing 1 is divided into the first air intake district 2 and the second air intake district 9, the first blast pipe 3 and heater 4 is provided with in first air intake district 2, the outlet air end in the first air intake district 2 is provided with the first dry section 5, first dry section 5 is provided with the dry tuyere 6 of initial segment, the outlet air end of the dry tuyere 6 of initial segment to the distance values on electrode slice 17 surface is greater than the distance values of outlet air end to electrode slice 17 surface of the dry tuyere 13 of interlude and the dry tuyere 14 of end, the outlet air end that second inside, air intake district 9 is provided with the second blast pipe 8 and heater 4, second air intake district 9 is provided with on the second dry section 10, second dry section 10 and is provided with the dry tuyere 13 of interlude and the dry tuyere 14 of end, it is inner that first dry section 5 and the second dry section 10 are juxtaposed on casing 1, carrying roller is provided with in first dry section 5 and the second dry section 10, carrying roller in first dry section 5 is drive roll 15, carrying roller in second dry section 10 is driven roll 16, the outlet air end internal diameter of the dry tuyere 6 of adjacent two initial segments is identical, the outlet air end internal diameter of the dry tuyere 13 of adjacent two interludes is identical, and the outlet air end internal diameter of the dry tuyere 14 of adjacent end varies in size, the outlet air end internal diameter of the dry tuyere 13 of interlude is greater than the outlet air end internal diameter of the dry tuyere 6 of initial segment, and the outlet air end internal diameter of the dry tuyere 14 of end reduces from left to right successively, is provided with filter 7 between the outlet air end of the dry tuyere 6 of initial segment and electrode slice 17, first dry section 5 is also provided with discharge pipe 11, and the outlet air end of discharge pipe 11 is connected with the second dry section 10, and discharge pipe 11 inside is provided with check-valves 12, and the spacing between adjacent two drive roll 15 outer rims is less than the spacing between adjacent two driven roll 16 outer rims.
Claims (7)
1. a coating machine drying box, comprise casing (1), casing (1) inside is provided with heater (4), also carrying roller is provided with in casing (1) dry section, by coating rear electrode sheet (17) on carrying roller, it is characterized in that: casing (1) is divided into the first air intake district (2) and the second air intake district (9), the first blast pipe (3) and heater (4) is provided with in first air intake district (2), the outlet air end in the first air intake district (2) is provided with the first dry section (5), the first dry section (5) is provided with the dry tuyere (6) of initial segment; Second air intake district (9) inside is provided with the second blast pipe (8) and heater (4), the outlet air end in the second air intake district (9) is provided with the second dry section (10), the second dry section (10) is provided with the dry tuyere (13) of interlude and the dry tuyere (14) of end; Outlet air end to the distance values that electrode slice (17) is surperficial of the dry tuyere (6) of initial segment is greater than the distance values of outlet air end to electrode slice (17) surface of the dry tuyere (13) of interlude and the dry tuyere (14) of end; It is inner that first dry section (5) and the second dry section (10) are juxtaposed on casing (1), carrying roller is provided with in first dry section (5) and the second dry section (10), carrying roller in first dry section (5) is drive roll (15), and the carrying roller in the second dry section (10) is driven roll (16).
2. a kind of coating machine drying box according to claim 1, it is characterized in that: the outlet air end internal diameter of the dry tuyere (6) of adjacent two initial segments is identical, the outlet air end internal diameter of the dry tuyere (13) of adjacent two interludes is identical, and the outlet air end internal diameter of the dry tuyere (14) of adjacent end varies in size; The outlet air end internal diameter of the dry tuyere (13) of interlude is greater than the outlet air end internal diameter of the dry tuyere (6) of initial segment.
3. a kind of coating machine drying box according to claim 2, is characterized in that: the outlet air end internal diameter of the dry tuyere (14) of end reduces from left to right successively.
4. a kind of coating machine drying box according to claim 3, is characterized in that: be provided with filter (7) between the outlet air end of the dry tuyere (6) of initial segment and electrode slice (17).
5. a kind of coating machine drying box according to claim 4, is characterized in that: the first dry section (5) is also provided with discharge pipe (11), the outlet air end of discharge pipe (11) is connected with the second dry section (10).
6. a kind of coating machine drying box according to claim 5, is characterized in that: discharge pipe (11) inside is provided with check-valves (12).
7. a kind of coating machine drying box according to claim 6, is characterized in that: the spacing between adjacent two drive roll (15) outer rims is less than the spacing between adjacent two driven roll (16) outer rims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420581777.7U CN204208768U (en) | 2014-10-10 | 2014-10-10 | A kind of coating machine drying box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420581777.7U CN204208768U (en) | 2014-10-10 | 2014-10-10 | A kind of coating machine drying box |
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| Publication Number | Publication Date |
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| CN204208768U true CN204208768U (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420581777.7U Active CN204208768U (en) | 2014-10-10 | 2014-10-10 | A kind of coating machine drying box |
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| CN (1) | CN204208768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687019A (en) * | 2020-06-16 | 2020-09-22 | 苏州清陶新能源科技有限公司 | Baking process for lithium ion battery anode |
-
2014
- 2014-10-10 CN CN201420581777.7U patent/CN204208768U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687019A (en) * | 2020-06-16 | 2020-09-22 | 苏州清陶新能源科技有限公司 | Baking process for lithium ion battery anode |
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