CN202655193U - Extrusion coating device - Google Patents
Extrusion coating device Download PDFInfo
- Publication number
- CN202655193U CN202655193U CN 201220104108 CN201220104108U CN202655193U CN 202655193 U CN202655193 U CN 202655193U CN 201220104108 CN201220104108 CN 201220104108 CN 201220104108 U CN201220104108 U CN 201220104108U CN 202655193 U CN202655193 U CN 202655193U
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- filter
- pump
- extrusion coated
- storage tank
- valve
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Abstract
The utility model belongs to the technical field of manufacturing of lithium ion batteries and particularly relates to an extrusion coating device comprising a storage tank, a feeding pump, a main filter, a coating roller for holding base material and an extrusion coating head for coating the base material, wherein the feeding pump is respectively connected with the storage tank and the main filter through pipelines; the main filter is connected with the extrusion coating head through a pipeline; a bypass filter connected in parallel with the main filter is connected between the feeding pump and the extrusion coating head through a pipeline; and a circulating pump connected in parallel with the feeding pump is connected between the bypass filter and the storage tank through a pipeline. Compared with the prior art, the extrusion coating device has the advantages that the main filter and the bypass filter can be used in turn, and the filter is replaced without stopping; meanwhile, due to the adoption of the circulating pump, the exhaust time of the filter is completely eliminated, the utilization ratio of machines is increased by 7%, and the production efficiency is increased; and the defect that air is mixed into a solid-liquid mixture to form a coating is avoided, and the quality of a product is improved.
Description
Technical field
The utility model belongs to technical field of lithium-ion battery, relates in particular to a kind of extrusion coated device of electrodes of lithium-ion batteries coating usefulness.
Background technology
The production technology of lithium ion battery generally comprises stirring, is coated with, colds pressing, cut-parts, coiling or lamination, fluid injection, encapsulate, change into and the operations such as capacity.Wherein, agitating procedure is that solvent, active material, conductive agent, binding agent, thickener and other additives are mixed into solidliquid mixture by certain prescription, painting process then is that the solidliquid mixture that agitating procedure obtains is coated on the thin conductive base, and then oven dry obtains pole piece to be colded pressing.
At present, the coating process of electrodes of lithium-ion batteries mainly contains two kinds of transfer coated method and extrusion coated methods, although wherein the extrusion coated method is emerging coating process, but because the product quality that adopts the extrusion coated method to obtain is high, defective is few, vertical and horizontal weight high conformity, therefore obtain rapidly development, showed gradually the trend that replaces traditional transfer coated method.
The extrusion coated device that the extrusion coated method adopts mainly comprises storage tank, charging pump, filter, extrusion coated head, paint roller and base material, storage tank is connected with filter by charging pump, filter is connected with the extrusion coated head simultaneously, extrusion coated head and paint roller are oppositely arranged, distance between the two is very little, base material pile warp paint roller.Coating process is: after slurry is fed pump and is transported to filter and filters from storage tank, enter the extrusion coated head, owing to keep slight distance between extrusion coated head and paint roller, so slurry can be sprayed on the base material of pile warp paint roller, through super-dry, obtain battery pole piece again.
The defective of this extrusion coated production technology is:
The employed slurry of coating of lithium-ion battery is for stirring the solidliquid mixture that obtains, grain diameter in this solidliquid mixture is 0.1～100 μ m, very easily occur to reunite or sedimentation, the bulky grain that reunion and sedimentation produce is blocked in and forms filter cake in the filter, affects the stability of slurry flow.Need in time replacing filter this moment, usually, needed to change a filter in average per 4 hours, behind the replacing filter, need further to get rid of the air in the filter, avoid air to sneak into and form coating defects in the solidliquid mixture.Each change the time that filter adds deaeration and need about 1～1.5 hour, affect production efficiency.Slurry in the extrusion coated head occurs to reunite and precipitation because shutdown remains static simultaneously, affects product quality.
In view of this, necessaryly provide a kind of extrusion coated device, so that can either remove in process of production bulky grain and impurity in the slurry, not needing again to shut down is replaceable filter, thereby enhances productivity, and guarantees product quality.
The utility model content
The purpose of this utility model is: for the deficiencies in the prior art; and a kind of extrusion coated device is provided, so that can either remove in process of production bulky grain and impurity in the slurry, not needing again to shut down is replaceable filter; thereby enhance productivity, guarantee product quality.
To achieve these goals, the utility model adopts following technical scheme:
A kind of extrusion coated device, the paint roller that comprise storage tank, charging pump, main filter, is used for placing base material be connected the extrusion coated head to described substrate coating, described charging pump respectively by pipeline and described storage tank be connected filter and be connected, described main filter is connected with described extrusion coated head by pipeline, be connected with the bypass strainer that is arranged in parallel with described main filter by pipeline between described charging pump and the described extrusion coated head, be connected with the circulating pump that is arranged in parallel with described charging pump by pipeline between described bypass strainer and the described storage tank.Wherein, the changeable use of main filter and bypass strainer, when one of them filter was in running order, another filter was inputted slurry by circulating pump, then got rid of the inner air rear enclosed, was in stand-by state.When needing to switch, need not to shut down, only need switched path can enable reserve filter.Begin simultaneously to clean blocking filter, clean complete installation after, same procedure makes it be in stand-by state, can realize continuous production.
Wherein, the order number of main filter and bypass strainer is 100～200 orders, and operating pressure is 0.02～0.6Mpa, and flow is 0.5～2L/min, and temperature is 20～50 ℃.
A kind of improvement as the utility model extrusion coated device, be provided with the first valve between described circulating pump and the described bypass strainer, be provided with the second valve between described charging pump and the described bypass strainer, be provided with the 3rd valve between described charging pump and the main filter, be provided with the 4th valve between described extrusion coated head and the described main filter, be provided with the 5th valve between described extrusion coated head and the described bypass strainer, be provided with the 6th valve between described bypass strainer and the storage tank, be provided with the 7th valve between described circulating pump and the storage tank.
As a kind of improvement of the utility model extrusion coated device, described charging pump is screw pump or gear pump.
As a kind of improvement of the utility model extrusion coated device, described circulating pump is screw pump, gear pump or air driven pump.
As a kind of improvement of the utility model extrusion coated device, described bypass strainer is at least one.
With respect to prior art, the utility model has the following advantages at least:
The first, main filter and bypass strainer can switch use in turn, need not when changing filter to shut down, and the filter evacuation time has been eliminated in the simultaneously employing of circulating pump fully, and the utilization rate of machine has improved 7%, has improved production efficiency; And avoided air to sneak into forming coating defects in the solidliquid mixture, improved product quality;
The second, when main filter uses, by the open and close of different valves, can keep bypass strainer to be in channel status, can play the effect of slurry in the circulating filtration storage tank;
The 3rd, need not to shut down owing to change filter, avoided slurry in the extrusion coated head, to occur to reunite and precipitate and cause forming coating defects, improved coating quality;
The 4th, a plurality of bypass strainers can share a cover circulating pump, have saved production cost; Filter can recycle, and is with low cost, and it is convenient to install and change;
The 5th, the utility model is reasonable in design, and is simple in structure, with low cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model and useful technique effect thereof are elaborated, but the utility model is not limited to this.
As shown in Figure 1, a kind of extrusion coated device of the utility model, comprise storage tank 1, charging pump 2, main filter 3, be used for to place the paint roller 15 of base material 16 and be used for to the extrusion coated of described base material 16 coatings 14, described charging pump 2 respectively by pipeline and described storage tank 1 be connected filter 3 and be connected, described main filter 3 is connected by pipeline and described extrusion coated 14, be connected with the bypass strainer 4 that is arranged in parallel with described main filter 3 by pipeline between described charging pump 2 and the described extrusion coated 14, be connected with the circulating pump 5 that is arranged in parallel with described charging pump 2 by pipeline between described bypass strainer 4 and the described storage tank 1.
Wherein, main filter 3 is 100～200 orders with the order number of bypass strainer 4, and operating pressure is 0.02～0.6Mpa, and flow is 0.5～2L/min, and temperature is 20～50 ℃.
Wherein, be provided with the first valve 6 between described circulating pump 5 and the described bypass strainer 4, be provided with the second valve 7 between described charging pump 2 and the described bypass strainer 4, be provided with the 3rd valve 8 between described charging pump 2 and the main filter 3, be provided with the 4th valve 11 between described extrusion coated 14 and the described main filter 3, be provided with the 5th valve 12 between described extrusion coated 14 and the described bypass strainer 4, be provided with the 6th valve 13 between described bypass strainer 4 and the storage tank 1, be provided with the 7th valve 17 between described circulating pump 5 and the storage tank 1.
Described charging pump 2 is screw pump or gear pump.
Described circulating pump 5 is screw pump, gear pump or air driven pump.
Described bypass strainer 4 is at least one.
During concrete the use, slurry enters bypass strainer 4 by charging pump 2, and keep the second valve 7 and the 5th valve 12 to close this moment, and the 3rd valve 8 and the 4th valve 11 are opened, slurry enters extrusion coated 14 via main road filter 3, is coated on the base material 16 of pile warp paint roller 15.Bypass strainer 4 outputs link to each other with the output of circulating pump 5 by the first valve 6, the 6th valve 13 links to each other with storage tank 1 by pipeline, one end of circulating pump 5 links to each other with storage tank 1, the first valve 6, the 6th valve 13 and the 7th valve 17 are opened, running by circulating pump 5 is transported to bypass strainer 4 to slurry from storage tank 1, the air in the emptying bypass strainer 4.Bas Discharged is complete, closes the first valve 6 and the 6th valve 13, and bypass strainer 4 is in stand-by state.In case main filter 3 needs to change, close the 3rd valve 8 and the 4th valve 11 is closed, open the second valve 7 and the 5th valve 12, enable bypass strainer 4 and produce continuously.More behind the change owner filter 3, adopt preceding method to make it be in stand-by state, so circulation guarantees the machine consecutive production.
In a word, main filter 3 and bypass strainer 4 changeable uses, when one of them filter was in running order, then another filter got rid of the inner air rear enclosed by circulating pump 5 input slurries, is in stand-by state.When needing to switch, need not to shut down, only need switched path can enable reserve filter.Begin simultaneously to clean blocking filter, clean complete installation after, same procedure makes it be in stand-by state, can realize continuous production.
Use the extrusion coated device of prior art, need shut down 4～5 every day, and after adopting extrusion coated device of the present utility model, shut down number of times to reduce to 0 time, can save 4～6 hours production times every day.And the utility model can be avoided fully owing to shut down the coating defects that slurry sediment causes in the extrusion coated head that causes, and the bad product loss that this defective is caused is reduced to 0 from 0.5%.
In sum, the utility model has the following advantages at least:
The first, main filter 3 and bypass strainer 4 can switch use in turn, need not when changing filter to shut down, and the filter evacuation time has been eliminated in the simultaneously employing of circulating pump 5 fully, and the utilization rate of machine has improved 7%, has improved production efficiency; And avoided air to sneak into forming coating defects in the solidliquid mixture, improved product quality;
The second, when main filter 3 uses, by the open and close of different valves, can keep bypass strainer 4 to be in channel status, can play the effect of slurry in the circulating filtration storage tank 1;
The 3rd, need not to shut down owing to change filter, avoided slurry in extrusion coated 14, to occur to reunite and precipitation and cause forming coating defects, improved coating quality;
The 4th, a plurality of bypass strainers 4 can share a cover circulating pump, have saved production cost; Filter can recycle, and is with low cost, and it is convenient to install and change;
The 5th, the utility model is reasonable in design, and is simple in structure, with low cost.
The according to the above description announcement of book and guidance, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the specific embodiment that discloses and describe above the utility model is not limited to also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not consist of any restriction to the utility model just for convenience of description.
Claims (5)
1. extrusion coated device, comprise storage tank (1), charging pump (2), main filter (3), for the paint roller (15) of placing base material (16) with for the extrusion coated head (14) to described base material (16) coating, described charging pump (2) respectively by pipeline and described storage tank (1) be connected filter (3) and be connected, described main filter (3) is connected with described extrusion coated head (14) by pipeline, it is characterized in that: be connected with the bypass strainer (4) that is arranged in parallel with described main filter (3) by pipeline between described charging pump (2) and the described extrusion coated head (14), be connected with the circulating pump (5) that is arranged in parallel with described charging pump (2) by pipeline between described bypass strainer (4) and the described storage tank (1).
2. extrusion coated device according to claim 1, it is characterized in that: be provided with the first valve (6) between described circulating pump (5) and the described bypass strainer (4), be provided with the second valve (7) between described charging pump (2) and the described bypass strainer (4), be provided with the 3rd valve (8) between described charging pump (2) and the main filter (3), be provided with the 4th valve (11) between described extrusion coated head (14) and the described main filter (3), be provided with the 5th valve (12) between described extrusion coated head (14) and the described bypass strainer (4), be provided with the 6th valve (13) between described bypass strainer (4) and the storage tank (1), be provided with the 7th valve (17) between described circulating pump (5) and the storage tank (1).
3. extrusion coated device according to claim 1, it is characterized in that: described charging pump (2) is screw pump or gear pump.
4. extrusion coated device according to claim 1, it is characterized in that: described circulating pump (5) is screw pump, gear pump or air driven pump.
5. extrusion coated device according to claim 1 is characterized in that: described bypass strainer (4) is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220104108 CN202655193U (en) | 2012-03-19 | 2012-03-19 | Extrusion coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220104108 CN202655193U (en) | 2012-03-19 | 2012-03-19 | Extrusion coating device |
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| Publication Number | Publication Date |
|---|---|
| CN202655193U true CN202655193U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220104108 Expired - Lifetime CN202655193U (en) | 2012-03-19 | 2012-03-19 | Extrusion coating device |
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| CN (1) | CN202655193U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008184A (en) * | 2013-01-11 | 2013-04-03 | 常州工学院 | Fully-automatic loading device for pole plate coating of lithium battery and adjustment method thereof |
| CN103551286A (en) * | 2013-11-15 | 2014-02-05 | 四川长虹电源有限责任公司 | Lithium battery coating feeding system and coating method thereof |
| CN109847993A (en) * | 2019-01-03 | 2019-06-07 | 力神电池（苏州）有限公司 | A kind of control system being exclusively used in the coating of lithium ion battery squash type gap |
| US10558117B2 (en) | 2015-05-20 | 2020-02-11 | Canon Kabushiki Kaisha | Imprint apparatus and article manufacturing method |
-
2012
- 2012-03-19 CN CN 201220104108 patent/CN202655193U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008184A (en) * | 2013-01-11 | 2013-04-03 | 常州工学院 | Fully-automatic loading device for pole plate coating of lithium battery and adjustment method thereof |
| CN103551286A (en) * | 2013-11-15 | 2014-02-05 | 四川长虹电源有限责任公司 | Lithium battery coating feeding system and coating method thereof |
| US10558117B2 (en) | 2015-05-20 | 2020-02-11 | Canon Kabushiki Kaisha | Imprint apparatus and article manufacturing method |
| CN109847993A (en) * | 2019-01-03 | 2019-06-07 | 力神电池（苏州）有限公司 | A kind of control system being exclusively used in the coating of lithium ion battery squash type gap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |