CN213914551U - Transfer coating automatic feeding system for lithium battery - Google Patents
Transfer coating automatic feeding system for lithium battery Download PDFInfo
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- CN213914551U CN213914551U CN202021730122.3U CN202021730122U CN213914551U CN 213914551 U CN213914551 U CN 213914551U CN 202021730122 U CN202021730122 U CN 202021730122U CN 213914551 U CN213914551 U CN 213914551U
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Abstract
The utility model provides a lithium cell is with shifting coating automatic feeding system, include: the feeding system comprises a storage tank and a transfer tank; the slurry liquid level control system comprises a buffer material groove and a coating roller material groove which are communicated, and liquid level sensors are respectively arranged in the buffer material groove and the coating roller material groove; the feeding pump is arranged between the transfer tank and the slurry liquid level control system; the slurry backflow system is arranged between the transfer tank and the slurry liquid level control system; and the control system controls the feeding speed of the feeding pump according to the liquid level pressure detected by the liquid level sensor. The utility model provides a lithium cell is with shifting coating automatic feeding system, equipment intensification design can satisfy the automatic feeding demand of transfer formula coating, can realize automatic level control, realizes that coating process thick liquids liquid level developments are controllable, and then makes lithium cell coating surface density uniformity higher, and coating surface quality is good, and loading system's use need not artificial intervention, and degree of automation is high.
Description
Technical Field
The utility model belongs to the technical field of the battery is made, more specifically say, relate to a lithium cell is with shifting coating automatic feeding system.
Background
The new energy automobile industry has rapidly developed in recent years, and the power battery technology has also advanced rapidly. With the gradual expansion of market share of new energy automobiles, products released by new energy host plants in the market are different, and the requirements on power battery enterprises are numerous, so that the efficiency needs to be improved in the field of research and development of power battery cores to quickly match the requirements of the host plants. The coating is an important link for manufacturing the power battery cell, and the coating efficiency and the coating quality directly influence the performance of the cell.
Transfer coating is a common coating means for cell development, and is often used in cell laboratories and small-scale production. However, the existing transfer type coating feeding control equipment is too simple, the automation degree of the equipment is low, slurry needs to be added manually, and then a series of problems that the slurry is placed for a long time to cause sedimentation and agglomeration to influence the coating surface quality, the liquid level of a trough is unstable to cause the unstable coating surface density and the like are caused.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a lithium cell is with shifting coating automatic feeding system to solve the degree of automation that exists among the prior art and hang down, the relatively poor technical problem of coating quality.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a transfer coating automatic feeding system for a lithium battery, including:
the feeding system comprises a storage tank and a transfer tank;
the slurry liquid level control system comprises a buffer material groove and a coating roller material groove which are communicated, wherein liquid level sensors are respectively arranged in the buffer material groove and the coating roller material groove, and a coating end is arranged on one side of the coating roller material groove;
the feeding pump is arranged between the transfer tank and the slurry liquid level control system and is used for feeding materials to the buffer material groove and the coating roller material groove;
the slurry backflow system is arranged between the transfer tank and the slurry liquid level control system and is used for adjusting the feeding speed of the feeding system to the slurry liquid level control system;
the control system is respectively in communication connection with the feeding pump and each liquid level sensor so as to control the feeding speed of the feeding pump according to the liquid level pressure detected by the liquid level sensors;
the material storage tank is connected and communicated with the feeding pump, the feeding pump is connected with the transfer tank, and the buffer trough is connected and communicated with the coating roller trough through pipelines.
Through adopting above-mentioned technical scheme, equipment intensification design can satisfy transfer formula coating automatic feed demand, is provided with charge-in system, thick liquids liquid level control system, thick liquids reflux system and control system, can realize automatic liquid level control, realizes that coating process thick liquids liquid level developments are controllable, and then makes lithium cell coating surface density uniformity higher, and coating surface quality is good, and loading system's use need not artificial intervention, and degree of automation is high.
In one embodiment, the side of the coating roller channel remote from the buffer channel forms the coating end, which matches the profile of the side of the reference roller of the coating device.
By adopting the technical scheme, the coating end of the coating roller trough is matched with the profile of one side of the reference roller, the coating head can be omitted, the cost is saved, the whole structure of the equipment is compact, and the occupied space of the equipment can be reduced.
In one embodiment, a stirring paddle capable of stirring the slurry in the buffer tank is arranged in the buffer tank, and a stirring motor for driving the stirring paddle to rotate is arranged above the buffer tank.
By adopting the technical scheme, the slurry can be continuously stirred in the whole using process, and the problems of agglomeration and caking caused by long-time placement of the slurry are avoided.
In one embodiment, the buffer trough and the coating roller trough are arranged on the same horizontal line, and the bottom liquid level and the highest liquid level inside the buffer trough and the coating roller trough are respectively positioned on the same horizontal line; the liquid level sensor is a pressure type liquid level sensor, and through holes for mounting the pressure type liquid level sensor are respectively formed in the bottoms of the buffer trough and the coating roller trough.
By adopting the technical scheme, the liquid level in the trough can be effectively controlled through the principle of the U-shaped pipe, the control difficulty is reduced, and the manufacturing and using cost of the feeding system is reduced; install pressure type level sensor in the through-hole of each silo bottom, be convenient for monitor the liquid level in the silo, the installation of part is convenient.
In one embodiment, a material conveying pump and a first pipeline filter are sequentially arranged between the material storage tank and the transfer tank, the material conveying pump is used for conveying the slurry in the material storage tank to the transfer tank, and the first pipeline filter is used for filtering the slurry conveyed by the material conveying pump.
Through adopting above-mentioned technical scheme, set up first pipeline filter, can guarantee the smooth and easy of defeated material between storage tank and the transfer tank, avoid the reunion of thick liquids, the caking problem, improve the stability of material loading.
In one embodiment, the first pipeline filter is connected and communicated with the feed delivery pump and the transfer tank through stainless steel pipelines respectively.
Through adopting above-mentioned technical scheme, through setting up stainless steel pipeline for form stable being connected between storage tank and the transfer jar, stainless steel pipeline long service life improves system safety in utilization.
In one embodiment, the slurry backflow system comprises a backflow pump and a backflow flow meter, wherein the backflow pump is used for adjusting the feeding speed, and the backflow flow meter is linked with the backflow pump to monitor the backflow flow.
Through adopting above-mentioned technical scheme, through setting up backwash pump and backward flow flowmeter, can monitor the backward flow dynamically, and then control backward flow, avoid the liquid level in the silo to hang down excessively.
In one embodiment, the reflux pump is a variable frequency pump with the function of dynamically adjusting the feed rate.
Through adopting above-mentioned technical scheme, the backwash pump adopts the inverter pump for the return-flow system can dynamically adjust feed rate.
In one embodiment, a second pipe filter is arranged between the return pump and the slurry level control system.
Through adopting above-mentioned technical scheme, the impurity in the second pipe filter filterable backward flow thick liquids of setting to the thick liquids that avoids the backward flow blocks up the backwash pump, and the use of cooperation return-flow system can avoid the reunion of thick liquids, the caking problem.
In one embodiment, the second pipeline filter is respectively connected and communicated with the bottoms of the buffer material groove and the coating roller material groove through corrosion-resistant hoses, and a backflow control valve is arranged on each corrosion-resistant hose and is in communication connection with the control system.
Through adopting above-mentioned technical scheme, corrosion-resistant hose can be suitable for long-term the use, improves system life, and the break-make of the steerable backward flow control valve of control system, and then control backward flow avoids the liquid level in the silo to hang down excessively.
The utility model provides a lithium cell lies in with shifting coating automatic feeding system's beneficial effect: compared with the prior art, the utility model discloses lithium cell is with shifting coating automatic feeding system is provided with feed system, thick liquids level control system, thick liquids reflux system and control system, and the design of equipment intensification can satisfy the automatic feeding demand of transfer formula coating, can realize automatic level control, realizes that coating process thick liquids liquid level developments are controllable, and then makes lithium cell coating surface density uniformity higher, and coating surface quality is good, and the use of feed system need not artificial intervention, and degree of automation is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a transfer coating automatic feeding system for a lithium battery provided by an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
100-a feed system; 200-a slurry level control system; 300-a feeding pump; 400-slurry recirculation system; 500-a coating device; 110-a storage tank; 120-a transfer tank; 130-a delivery pump; 140-a first pipe filter; 150-stainless steel tubing; 210-a buffer trough; 220-coating roller trough; 230-a liquid level sensor; 240-slurry feed-through tubes; 211-stirring paddle; 212-a stirring motor; 221-coating end; 310-a feed flowmeter; 320-a feed conduit; 330-a feed valve; 410-reflux pump; 420-reflux flow meter; 430-a second pipeline filter; 440-corrosion resistant hose; 450-a reflux control valve; 510-a reference roller; 520-a coating transfer roll; 530-rubber backing roll; 540-foil.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an automatic transfer coating feeding system for a lithium battery according to an embodiment of the present invention will be described. The transfer coating automatic feeding system for the lithium battery comprises a feeding system 100, a slurry liquid level control system 200, a feeding pump 300, a slurry backflow system 400 and a control system (not shown).
The feed system 100 includes a storage tank 110 and a transfer tank 120. A stirring mechanism capable of stirring the slurry can be arranged in the storage tank 110 and the transfer tank 120, the volume of the storage tank 110 is larger than that of the transfer tank 120, the storage tank 110 is mainly used for storing a large amount of slurry, and the volume of the storage tank is designed to be 30-300L; the transfer tank 120 mainly serves as a slurry transfer, and has a small volume, and the capacity can be designed to be 5-30L.
The slurry liquid level control system 200 comprises a buffer trough 210 and a coating roller trough 220, wherein liquid level sensors 230 are respectively arranged in the buffer trough 210 and the coating roller trough 220, and the liquid level sensors 230 respectively monitor the liquid levels in the corresponding troughs in real time. The coating roller slot 220 has a coating end 221 at one side thereof, and the coating end 221 can coat the slurry onto the foil 540 wound on the reference roller 510.
The feeding pump 300 is arranged between the transfer tank 120 and the slurry liquid level control system 200, and the feeding pump 300 is used for feeding materials to the buffer material groove 210 and the coating roller material groove 220; at the outlet of the feed pump 300, a feed flow meter 310 may be connected, the feed flow meter 310 being in communication with the control system.
The slurry backflow system 400 is disposed between the transfer tank 120 and the slurry level control system 200, and the slurry backflow system 400 is used for adjusting the feeding speed of the feeding system 100 to the slurry level control system 200, so that the liquid level in the trough can be prevented from being too low.
The control system is in communication connection with the feeding pump 300 and each liquid level sensor 230, the control system controls the feeding speed of the feeding pump 300 according to the liquid level pressure detected by the liquid level sensor 230, and the control system can be but is not limited to a PLC (Programmable Logic Controller) control system.
The storage tank 110 is connected and communicated with the feeding pump 300, the feeding pump 300 is connected with the transfer tank 120, and the buffer tank 210 is communicated with the coating roller tank 220 through pipelines. The two material tanks can be fed by controlling a feeding valve 330, the feeding flowmeter 310 and the buffer material tank 210, and the feeding flowmeter 310 and the coating roller material tank 220 can be connected and communicated through a feeding pipeline 320, the feeding pipeline 320 can realize parallel feeding, and the feeding pipeline 320 is a corrosion-resistant plastic hose; the buffer trough 210 is communicated with the bottom of the coating roller trough 220 through a slurry communicating pipe 240; the bottom of the transfer tank 120 may be connected to the charge pump 300 by a stainless steel removable pipe. Control system can control feeding volume and input speed, need not manual interpolation thick liquids during the use, and control system can control the silo liquid level, and the silo liquid level can influence coating feed pressure, and control system is to the centralized control of each part for lithium cell coating surface density uniformity is higher, and coating surface quality is good, and equipment degree of automation is high, and economic efficiency can promote.
The utility model provides a lithium cell is with shifting coating automatic feeding system, compared with the prior art, be provided with charge-in system 100, thick liquids level control system 200, thick liquids return-flow system 400 and control system, the design of equipment intensification, can satisfy transfer formula coating automatic feed demand, can realize automatic level control, it is controllable to realize coating process thick liquids liquid level developments, and then make lithium cell coating surface density uniformity higher, coating surface quality is good, manual intervention is not needed in charge-in system's use, degree of automation is high.
In one embodiment, as shown in fig. 1, one side of the feeding system is provided with a coating device 500, the coating device 500 comprises a reference roller 510, a coating transfer roller 520 and a rubber back roller 530 which are oppositely arranged, the reference roller 510 and the coating transfer roller 520 are oppositely arranged, the reference roller 510 is positioned right above the coating transfer roller 520, the rubber back roller 530 is positioned at the side of the coating transfer roller 520, and the diameter of the reference roller 510 is larger than that of the coating transfer roller 520; the reference roll 510 is typically a stainless steel chrome plated hardened roll and the coating transfer roll 520 is typically a stainless steel chrome plated hardened roll; a coating end is arranged on one side of the coating roller trough 220, and the reference roller 510 and the coating roller trough 220 can be sealed through silica gel; the rubber back roll 530 is attached to the coating transfer roll 520 using an air cylinder; the foil 540 may be fed along the underside, and the foil 540 may be one of an aluminum foil or a copper foil.
The side of the coating roller channel 220 remote from the buffer channel 210 forms the coating end 221, and the coating end 221 matches the profile of the reference roller 510 side of the coating apparatus 500. The coating end 221 of the coating roller trough 220 is matched with the profile of one side of the reference roller 510, so that the arrangement of a coating head connected with a discharge port of the coating roller trough 220 can be omitted, components are reduced, the cost is saved, the whole structure of the equipment is compact, and the occupied space of the equipment can be reduced.
In an embodiment, referring to fig. 1, a stirring paddle 211 capable of stirring the slurry in the buffer tank 210 is disposed in the buffer tank 210, a stirring motor 212 for driving the stirring paddle 211 to rotate is disposed above the buffer tank 210, the stirring motor 212 can be in communication connection with a control system, and the control system can control the stirring speed. Due to the arrangement of the stirring motor 212 and the stirring paddle 211, the slurry can be continuously stirred in the whole using process, and the problems of agglomeration and caking caused by long-time placement of the slurry are avoided.
In one embodiment, referring to FIG. 1, the buffer tank 210 and the coating roller tank 220 are disposed on the same horizontal line, and the bottom level and the top level inside the two are located on the same horizontal line. The position design and the inside liquid level design of buffering silo 210 and coating roller silo 220 for two silos pass through U type pipe principle, can control the liquid level in the silo effectively, reduce the control degree of difficulty, also can reduce the holistic preparation of feeding system and use cost simultaneously.
The liquid level sensor 230 is a pressure type liquid level sensor, through holes are respectively arranged at the bottoms of the buffer material groove 210 and the coating roller material groove 220, and the pressure type liquid level sensor is arranged at the through hole of each material groove. Install pressure type level sensor in the through-hole of each silo bottom, be convenient for monitor the liquid level in the silo, pressure type level sensor's installation is convenient. That is, pressure type liquid level sensors are installed at the bottoms of the buffer material groove 210 and the coating roller material groove 220, and the control system monitors the material level state in real time according to the liquid level pressure in the material groove and controls feeding in linkage with the feeding pump 300.
In an embodiment, referring to fig. 1, a material delivery pump 130 and a first pipeline filter 140 are sequentially disposed between the material storage tank 110 and the transfer tank 120, the material delivery pump 130 is used for delivering the slurry in the material storage tank 110 to the transfer tank 120, and the first pipeline filter 140 is used for filtering the slurry delivered by the material delivery pump 130. The first pipeline filter 140 is arranged, so that smooth material conveying between the storage tank 110 and the transfer tank 120 can be ensured, the problems of slurry agglomeration and caking are avoided, and the feeding stability is improved.
The feed delivery pump 130 may be a diaphragm pump or a rotor pump. And a diaphragm pump or a rotor pump is adopted, so that the control is easy, and the accurate control of the feeding speed is easy to realize.
In one embodiment, referring to fig. 1, the first pipe filter 140 is connected to and communicates with the feed pump 130 and the transfer tank 120 through stainless pipes 150, respectively. Through setting up stainless steel pipeline 150 for form stable being connected between storage tank 110 and the transfer tank 120, stainless steel pipeline 150 long service life improves system safety in utilization.
In one embodiment, referring to fig. 1, the slurry recirculation system 400 includes a recirculation pump 410 and a recirculation flow meter 420, wherein the recirculation pump 410 is used for adjusting the feeding speed, and the recirculation flow meter 420 is linked with the recirculation pump 410 to monitor the recirculation flow rate. Reflux flowmeter 420 can adopt electromagnetic flowmeter, and electromagnetic flowmeter can monitor the backward flow dynamically to can with reflux pump 410 linkage, dynamic control backward flow avoids the liquid level to hang down excessively in the silo.
In one embodiment, referring to FIG. 1, the reflux pump 410 is a variable frequency pump with dynamic feed rate adjustment. The recirculation pump 410 employs a variable frequency pump such that the slurry recirculation system 400 can dynamically adjust the feed rate. The reflux pump 410 may specifically employ a rotor pump or a screw pump.
In one embodiment, referring to FIG. 1, a second pipe filter 430 is disposed between the recirculation pump 410 and the slurry level control system 200. The second pipeline filter 430 can filter impurities in the backflow slurry to prevent the backflow slurry from blocking the backflow pump 410, and the problems of agglomeration and caking of the slurry can be avoided by matching with the use of the slurry backflow system 400.
In one embodiment, referring to fig. 1, the second pipe filter 430 is connected and communicated with the bottom of the buffer tank 210 and the coating roller tank 220 through the corrosion-resistant hose 440, the corrosion-resistant hose 440 is provided with a backflow control valve 450, and the backflow control valve 450 is in communication connection with the control system, that is, the corrosion-resistant hose 440 between the buffer tank 210 and the second pipe filter 430 and the corrosion-resistant hose 440 between the coating roller tank 220 and the second pipe filter 430 are respectively provided with one backflow control valve 450. The corrosion-resistant hose 440 can be suitable for long-term use, the service life of the system is prolonged, the on-off of the backflow control valve 450 can be controlled by the control system, the backflow flow rate is further controlled, and the situation that the liquid level in the trough is too low is avoided.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a lithium cell is with transferring coating automatic feeding system which characterized in that: the method comprises the following steps:
the feeding system comprises a storage tank and a transfer tank;
the slurry liquid level control system comprises a buffer material groove and a coating roller material groove which are communicated, wherein liquid level sensors are respectively arranged in the buffer material groove and the coating roller material groove, and a coating end is arranged on one side of the coating roller material groove;
the feeding pump is arranged between the transfer tank and the slurry liquid level control system and is used for feeding materials to the buffer material groove and the coating roller material groove;
the slurry backflow system is arranged between the transfer tank and the slurry liquid level control system and is used for adjusting the feeding speed of the feeding system to the slurry liquid level control system;
the control system is respectively in communication connection with the feeding pump and each liquid level sensor so as to control the feeding speed of the feeding pump according to the liquid level pressure detected by the liquid level sensors;
the material storage tank is connected and communicated with the feeding pump, the feeding pump is connected with the transfer tank, and the buffer trough is connected and communicated with the coating roller trough through pipelines.
2. The transfer coating automatic feeding system for a lithium battery as claimed in claim 1, wherein: and the side of the coating roller trough, which is far away from the buffer trough, forms the coating end, and the coating end is matched with the profile of one side of a reference roller of the coating device.
3. The transfer coating automatic feeding system for a lithium battery as claimed in claim 1, wherein: the buffer material groove and the coating roller material groove are arranged on the same horizontal line, and the bottom liquid level and the highest liquid level inside the buffer material groove and the coating roller material groove are respectively positioned on the same horizontal line; the liquid level sensor is a pressure type liquid level sensor, and through holes for mounting the pressure type liquid level sensor are respectively formed in the bottoms of the buffer trough and the coating roller trough.
4. The transfer coating automatic feeding system for a lithium battery as claimed in claim 1, wherein: the stirring device is characterized in that a stirring paddle capable of stirring slurry in the buffering trough is arranged in the buffering trough, and a stirring motor used for driving the stirring paddle to rotate is arranged above the buffering trough.
5. The transfer coating automatic feeding system for a lithium battery as claimed in claim 1, wherein: the slurry filtering device is characterized in that a material conveying pump and a first pipeline filter are sequentially arranged between the storage tank and the transfer tank, the material conveying pump is used for conveying slurry in the storage tank to the transfer tank, and the first pipeline filter is used for filtering the slurry conveyed by the material conveying pump.
6. The transfer coating automatic feeding system for a lithium battery as claimed in claim 5, wherein: the first pipeline filter is connected and communicated with the material delivery pump and the transfer tank through stainless steel pipelines respectively.
7. The transfer coating automatic charging system for lithium battery as claimed in any one of claims 1 to 6, wherein: the slurry backflow system comprises a backflow pump and a backflow flowmeter, wherein the backflow pump is used for adjusting the feeding speed, and the backflow flowmeter is linked with the backflow pump to monitor the backflow flow.
8. The transfer coating automatic feeding system for a lithium battery as claimed in claim 7, wherein: the reflux pump is a variable frequency pump with the function of dynamically adjusting the feeding speed.
9. The transfer coating automatic feeding system for a lithium battery as claimed in claim 7, wherein: and a second pipeline filter is arranged between the reflux pump and the slurry liquid level control system.
10. The transfer coating automatic feeding system for a lithium battery as claimed in claim 9, wherein: the second pipeline filter is respectively connected and communicated with the bottoms of the buffer material groove and the coating roller material groove through corrosion-resistant hoses, and a backflow control valve is arranged on each corrosion-resistant hose and is in communication connection with the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021730122.3U CN213914551U (en) | 2020-08-18 | 2020-08-18 | Transfer coating automatic feeding system for lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021730122.3U CN213914551U (en) | 2020-08-18 | 2020-08-18 | Transfer coating automatic feeding system for lithium battery |
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| Publication Number | Publication Date |
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| CN213914551U true CN213914551U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021730122.3U Active CN213914551U (en) | 2020-08-18 | 2020-08-18 | Transfer coating automatic feeding system for lithium battery |
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| CN (1) | CN213914551U (en) |
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- 2020-08-18 CN CN202021730122.3U patent/CN213914551U/en active Active
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