CN209465269U - A kind of extrusion coated device - Google Patents
A kind of extrusion coated device Download PDFInfo
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- CN209465269U CN209465269U CN201821793564.5U CN201821793564U CN209465269U CN 209465269 U CN209465269 U CN 209465269U CN 201821793564 U CN201821793564 U CN 201821793564U CN 209465269 U CN209465269 U CN 209465269U
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- pressure
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- feeding device
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Abstract
The utility model provides a kind of extrusion coated device, the extrusion coated device includes the filter device for squeezing feeding device and being connected to after extruding feeding device, at least one pressure sensor is arranged in the filter device outlet, the pressure sensor is connected with pressure control device, and the control pressurer system is connected with the extruding feeding device.The extrusion coated device includes the filter device for squeezing feeding device and being connected to after decompression feeding device, the filter device outlet is set to pressure sensor, the pressure sensor leads to pressure control system and is connected, and the control pressurer system is connected with the extruding feeding device.
Description
Technical field
The utility model belongs to lithium ion battery production field, is related to a kind of lithium ion battery production equipment, more particularly to
A kind of extrusion coated device.
Background technique
Coating waste water technology and coating apparatus early stage are widely used in the production fields such as printing packaging, adhesive film.Cause
The characteristic of product is different, and there are many type of coating waste water technology, transfer coated and extrusion coated two major classes are roughly divided into, with row
Industry is higher and higher to efficiency and the uniformity requirement of coating, and extrusion coated mode is the most universal in existing actual production, and principle is
Slurry is uniformly applied to substrate surface by the pressure inside control die cavity.At present in lithium battery manufacturing process, storage tank
Extruding feeding is carried out essentially by screw pump between coating die head, and has after screw pump and is filled together by the filtering of sieve
Set, because size performance is unstable, as material difference, be dispersed with stirring effect different, the live residence time and be differently formed reunion
Grain or process siccative are brought into, so that the blocking of filter screen causes cavity internal pressure unstable, this has very pole piece weight consistency
Big influence.
CN 206009131U discloses a kind of apparatus for coating, including feeding mechanism, connectivity structure, coater head and pressure
Control mechanism；The connectivity structure includes the first opening, the second opening and third opening, and first opening, described second open
Mouth and the third open communication, and first opening is connected to the feeding mechanism, second opening and the coating
Head connection, the third opening are connected to the pressure control mechanism, and the pressure control mechanism is for controlling the connection
Pressure in structure, so that the rate for making material squeeze out the coater head from the feeding mechanism changes.The application can lead to
Excess pressure control mechanism adjusts coating pressure, keeps coating weight uniform, guarantees the quality of coating, improves the qualification rate of battery core.It should
Device, which converges always by itself adjusting of pressure control device, controls internal pipe pressure.
106984499 A of CN discloses a kind of extrusion coated die pressure control device.It includes between upper die and lower die
The slurry chamber of formation, the feedstock direction of slurry chamber are provided with plunger cavity, and plunger, the top installation of plunger cavity are equipped in plunger cavity
There is the servo motor for keeping piston reciprocation mobile by driver driving, the side of slurry chamber is additionally provided with for detecting slurry pressure
Pressure sensor, pressure sensor connect driver by controller, and pressure sensor can obtain slurry chamber internal pressure simultaneously
Pressure value is transferred to servo motor by controller, by the movement of Serve Motor Control plunger.After above-mentioned structure, when
After pressure sensor detects slurry chamber internal pressure, pressure value is transferred to servo motor by controller, by servo motor
The movement of control plunger ensure that internal slurry pressure constant to realize the control of extrusion coated mold cavity pressure
In numerical value, to ensure that the consistency of extrusion coated, Painting effect is improved.Pressure control device is arranged when the device
Coating die head position controls the pressure of coating die head.
Utility model content
For the technical problems in the prior art, the utility model provides a kind of extrusion coated device, the painting
Cloth apparatus can improve that coated face density is unstable, and slurry blocks the problem for causing surface density bad, control coated face density not by
The influence of sieve blocking, improves the consistency of surface density.
In order to achieve the above object, the utility model uses following technical scheme:
The utility model provides a kind of extrusion coated device, and the extrusion coated device includes squeezing feeding device and company
The filter device being connected to after decompression feeding device, the filter device outlet are set to pressure sensor, the pressure sensing
Device leads to pressure control system and is connected, and the control pressurer system is connected with the extruding feeding device.
As the preferred technical solution of the utility model, the extruding feeding device passes through pipeline phase with the filter device
Connection.
As the preferred technical solution of the utility model, the filter device is internally provided with filter screen.
It is electricity as the preferred technical solution of the utility model, between the pressure sensor and the pressure control device
Connection.
As the preferred technical solution of the utility model, it is between the pressure control device and the extruding feeding device
Electrical connection.
As the preferred technical solution of the utility model, the extruding feeding device is screw pump, the pressure control
Device processed is connected with the variable speed drive of the screw pump.
As the preferred technical solution of the utility model, the extrusion coated device includes storage device and by the storage
Expect the sequentially connected extruding feeding device of device, filter device, valve and coating die head, is set between the filter device and valve
It is equipped with pressure sensor, the pressure sensor leads to pressure control system and is connected, on the control pressurer system and the extruding
Expect that device is connected.
As the preferred technical solution of the utility model, the storage device squeezes feeding device, filter device, valve
And it is connected between coating die head using pipeline.
As the preferred technical solution of the utility model, the pressure sensor is set to the pipe between filter device and valve
Any position in road.
As the preferred technical solution of the utility model, the valve includes coating valve and return valve.
Compared with prior art, the utility model is at least had the advantages that
The utility model provides a kind of extrusion coated device, and it is unstable that the apparatus for coating can improve coated face density,
Slurry blocks the problem for causing surface density bad, and control coated face density is not influenced by sieve blocking, improves the one of surface density
Cause property, surface density process capability CPK value are improved by 0.49 to 1.58.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of extrusion coated device provided by the utility model；
Fig. 2 is the process capability figure of longitudinal surface density of positive plate provided by the embodiment of the utility model；
Fig. 3 is the process capability figure of the longitudinal surface density for the positive plate that the utility model comparative example provides；
In figure: 1- storage device, 2- pressure control device, 3- coating die head, 4- pressure sensor, 5- valve, 6- filtering
Device, 7- squeeze feeding device.
The utility model is further described below.But following examples is only the simple example of the utility model
Son, does not represent or limits the rights protection scope of the utility model, and the protection scope of the utility model is with claims
It is quasi-.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Specific embodiment of the present invention part provides a kind of extrusion coated device, the extrusion coated device include according to
The storage device 1 of secondary connection, pressure control device 2, coating die head 3, pressure sensor 4, valve 5, filter device 6 and extruding
Feeding device 7, installation squeezes feeding device 7 after storage tank 1, and the supply amount for controlling slurry is basicly stable, is squeezing feeding dress
Filter device 6 is equipped with after setting 7, the foreign matters such as impurity, particle inside filter slurry, but because of the control difficulty of slurry process consistency
It is higher, therefore control pressurer system 2 is fed back to equipped with pressure sensor 4 after its strainer, it is squeezed by the control of pressure control device 2
The revolving speed for expecting device 7, makes its pressure sensor 4 and squeezes feeding device 7 to form closed-loop control, allows 3 cavity pressure of coating die head
Stable state is kept, to guarantee the stability of coated face density, when stopping pressure control, 3 cavity pressure of coating die head becomes
Change the fluctuation for directly affecting coated face density.
Since the performance of the slurry of coating is unstable, i.e., viscosity profile is uneven, material is unevenly distributed, expects granularity not admittedly admittedly
, the factors such as dough is poly- admittedly, will cause and generate blocking when slurry passes through filter device inside filter device, to cause to be coated with
Die cavity pressure transient, influences the stability of coating, therefore at least one pressure sensing is arranged in filter device outlet portion
Device is monitored coating die head chamber pressure, and pressure parameter is fed back to control pressurer system by pressure sensor, when coating mould
When head chamber pressure is below or above threshold value set by control pressurer system, i.e., extruding feeding device is regulated and controled, passed through
It reduces or accelerates feeding speed and controlled coating die head chamber pressure to set threshold value with realizing.
In the utility model, the extruding feeding device is connected with the filter device by pipeline, and the pipeline can
It to be linear type or flexure type pipeline, can be adjusted according to the requirement of device fabricating yard, the material of the pipeline can be
Steel pipe or PVC pipeline etc. can be selected according to the property of slurry, and slurry of being subject to does not cause corrosion to pipeline.
In the utility model, the filter device is internally provided with filter screen, i.e., the described filter device is by strainer to slurry
Material is filtered, therefore slurry can result in blockage to strainer situation in the operation process of apparatus for coating, to cause coating mould
The variation of head chamber pressure.
In the utility model, it can take and be electrically connected between the pressure sensor and the pressure control device, that is, press
Pressure data is fed back to pressure control device by force snesor as electronic signals.The pressure sensor can also be by pressure
Data are converted to electromagnetic wave signal, and the pressure control device is by receiving the electromagnetic wave signal, to realize to pressure data
Acquisition, i.e., can be without actual connection medium between pressure sensor and pressure control device.Similarly, institute in the utility model
Extrusion coated device can be controlled by electric signal by stating pressure control device, can also be applied by electromagnetic wave signal to extruding
Cloth apparatus is controlled, but when carrying out control information transmitting using electromagnetic wave signal, needs to carry out extrusion coated device
Certain repacking, installs electromagnetic wave signals receiver and processing unit such as inside extrusion coated device.When extrusion coated fills
When being set to screw pump, i.e., the described pressure control device by electric signal or electromagnetic wave signal to the variable speed drive of screw pump into
Row control, to change the speed of screw pump transmitting slurry.
In the utility model, in addition to squeezing feeding device, filter device and pressure sensing in the extrusion coated device
It further include storage device, valve and coating die head, in addition to pressure sensor and pressure control dress outside device and pressure control device
Outside setting, other each sections are connected by pipeline, between the setting of each pipeline and the extruding feeding device and the filter device
Pipeline it is identical, duct length can be adjusted according to actual place installation requirements, but pipe radius and material should use up
Amount is kept always, and changes in flow rate caused by the variation to avoid pipe radius and material in turn results in the change of manifold pressure
Change.
In the utility model, the pressure sensor may be disposed at any position between filter device and valve, Ji Keshe
It is placed in any position for connecting the pipeline enclosure of the pressure sensor and the valve, it, can in order to realize the accurate of pressure control
Pressure sensor is adjusted in the multiple positions of pipeline, is in different location individually to the product of coating in pressure sensor
Tested, to determine the most ideal position of pressure sensor, avoid internal pipe pressure be unevenly distributed and caused by pressure
The influence of control.Can also be arranged on pipeline it is more can sensor, the data that pressure control device feeds back multiple pressure sensors
Summarized and counted, pressure value is adjusted flow velocity so that treated, keeps pressure control more accurate.
In the utility model, valve includes coating valve and return valve, and the effect for being coated with valve is opening for die head slurry supply
Lock is closed, the unlatching and finishing control realizing coating pole piece coating, being left white, the effect of return valve are slurry when control coating valve is closed
Reflux, the switch of synchronous coating valve.
For the utility model is better described, it is easy to understand the technical solution of the utility model, the typical case of the utility model
But non-limiting embodiment is as follows:
Embodiment
The present embodiment provides a kind of extrusion coated device, the extrusion coated device includes sequentially connected storage device 1,
Pressure control device 2, coating die head 3, pressure sensor 4, valve 5, filter device 6 and extruding feeding device 7, in storage tank
Installation squeezes feeding device 7 after 1, and the supply amount for controlling slurry is basicly stable, and filter device 6 is equipped with after squeezing feeding device 7,
The foreign matters such as impurity, particle inside filter slurry, but because the control difficulty of slurry process consistency is higher, therefore filled after its strainer
There is pressure sensor 4 to feed back to control pressurer system 2, the revolving speed for squeezing feeding device 7 is controlled by pressure control device 2, makes it
Pressure sensor 4 and extruding feeding device 7 form closed-loop control, and 3 cavity pressure of coating die head is allowed to keep stable state, to protect
The stability for demonstrate,proving coated face density, when stopping pressure control, the variation of 3 cavity pressure of coating die head directly affects coated face density
Fluctuation.
Using the process flow of above-mentioned apparatus, the coating of positive plate of lithium battery is carried out, coating major ingredient is nickle cobalt lithium manganate, base
Material is copper foil, and pole piece surface density is major control point, and control positive plate surface density is 470g/m2±5 g/m2, pass through online check weighing
Instrument detection device is monitored online.The process capability for being coated with longitudinal surface density of obtained positive plate is as described in Figure 2.
Comparative example
In addition to stop pressure sensor 4 and pressure control device 2 work it is outer, remaining process flow and technological parameter and
Embodiment is identical, and the positive plate major ingredient and substrate of coating are also identical as embodiment.The longitudinal surface for being coated with obtained positive plate is close
The process capability of degree is as described in Figure 3.
It can be seen that by the comparison of Fig. 2 and Fig. 3 and positive plate of lithium battery painting carried out using device described in the utility model
Cloth, the margin of tolerance of the final products relative to the dispersion degree of the technical indicator of setting, than stopping pressure sensor 4 and pressure
Tolerance model of the anode pole piece that device after the work of control device 2 is coated with relative to the dispersion degree of the technical indicator of setting
Enclose smaller, i.e., the surface density process capability of device described in the utility model is more preferably.
The Applicant declares that the utility model illustrates the detailed construction feature of the utility model through the foregoing embodiment, but
The utility model is not limited to above-mentioned detailed construction feature, that is, does not mean that the utility model must rely on above-mentioned detailed construction
Feature could be implemented.It should be clear to those skilled in the art, any improvement to the utility model, practical new to this
The equivalence replacement of component selected by type and increase, the selection of concrete mode of accessory etc., all fall within the utility model
Within protection scope and the open scope.
Preferred embodiments of the present invention are described in detail above, still, the utility model is not limited to above-mentioned reality
Apply the detail in mode, in the range of the technology design of the utility model, can to the technical solution of the utility model into
The a variety of simple variants of row, these simple variants belong to the protection scope of the utility model.
It is further to note that specific technical features described in the above specific embodiments, in not lance
It in the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the utility model is to each
No further explanation will be given for the possible combination of kind.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed
The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.
Claims (10)
1. a kind of extrusion coated device, which is characterized in that the extrusion coated device includes squeezing feeding device and being connected to
The filter device after feeding device is decompressed, at least one pressure sensor is arranged in the filter device outlet, and the pressure passes
Sensor is connected with pressure control device, and the pressure control device is connected with the extruding feeding device.
2. apparatus for coating according to claim 1, which is characterized in that the extruding feeding device and the filter device are logical
Piping is connected.
3. apparatus for coating according to claim 1, which is characterized in that the filter device is internally provided with filter screen.
4. apparatus for coating according to claim 1, which is characterized in that the pressure sensor and the pressure control device
Between for electrical connection.
5. apparatus for coating according to claim 1, which is characterized in that the pressure control device and the extruding feeding fill
It is electrical connection between setting.
6. apparatus for coating according to claim 1, which is characterized in that the extruding feeding device is screw pump, the pressure
Force control device is connected with the variable speed drive of the screw pump.
7. apparatus for coating according to claim 1, which is characterized in that the extrusion coated device include storage device and
By the sequentially connected extruding feeding device of the storage device, filter device, valve and coating die head, the filter device with
Pressure sensor is provided between valve, the pressure sensor is connected with control pressurer system, the control pressurer system and institute
Extruding feeding device is stated to be connected.
8. apparatus for coating according to claim 7, which is characterized in that the storage device squeezes feeding device, filtering dress
It sets, use pipeline to connect between valve and coating die head.
9. apparatus for coating according to claim 8, which is characterized in that the pressure sensor is set to filter device and valve
Any position between door.
10. apparatus for coating according to claim 7, which is characterized in that the valve includes coating valve and return valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821793564.5U CN209465269U (en) | 2018-11-01 | 2018-11-01 | A kind of extrusion coated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821793564.5U CN209465269U (en) | 2018-11-01 | 2018-11-01 | A kind of extrusion coated device |
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| Publication Number | Publication Date |
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| CN209465269U true CN209465269U (en) | 2019-10-08 |
Family
ID=68087114
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821793564.5U Active CN209465269U (en) | 2018-11-01 | 2018-11-01 | A kind of extrusion coated device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109569958A (en) * | 2018-11-01 | 2019-04-05 | 横店集团东磁股份有限公司 | A kind of extrusion coated device |
| CN111530711A (en) * | 2020-05-14 | 2020-08-14 | 珠海冠宇电池股份有限公司 | Control method of coating equipment and device for detecting coating weight increase |
| CN112170121A (en) * | 2020-09-01 | 2021-01-05 | 东莞维科电池有限公司 | Extrusion coating machine reflux pressure calculation method and device and storage medium |
-
2018
- 2018-11-01 CN CN201821793564.5U patent/CN209465269U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109569958A (en) * | 2018-11-01 | 2019-04-05 | 横店集团东磁股份有限公司 | A kind of extrusion coated device |
| CN111530711A (en) * | 2020-05-14 | 2020-08-14 | 珠海冠宇电池股份有限公司 | Control method of coating equipment and device for detecting coating weight increase |
| CN112170121A (en) * | 2020-09-01 | 2021-01-05 | 东莞维科电池有限公司 | Extrusion coating machine reflux pressure calculation method and device and storage medium |
| CN112170121B (en) * | 2020-09-01 | 2022-03-01 | 东莞维科电池有限公司 | Extrusion coating machine reflux pressure calculation method and device and storage medium |
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