CN118089906A - Diaphragm detection mechanism, coating device and diaphragm coating method - Google Patents

Diaphragm detection mechanism, coating device and diaphragm coating method Download PDF

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Publication number
CN118089906A
CN118089906A CN202410488102.6A CN202410488102A CN118089906A CN 118089906 A CN118089906 A CN 118089906A CN 202410488102 A CN202410488102 A CN 202410488102A CN 118089906 A CN118089906 A CN 118089906A
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CN
China
Prior art keywords
coating
diaphragm
weight
film
humidity
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Granted
Application number
CN202410488102.6A
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Chinese (zh)
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CN118089906B (en
Inventor
朱鸿鹏
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Priority to CN202410488102.6A priority Critical patent/CN118089906B/en
Publication of CN118089906A publication Critical patent/CN118089906A/en
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Publication of CN118089906B publication Critical patent/CN118089906B/en
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0272—After-treatment with ovens
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

The application discloses a diaphragm detection mechanism, a coating device and a diaphragm coating method. The diaphragm detection mechanism includes: the device comprises a shell assembly, a weight measuring assembly, a humidity measuring piece and an isolation piece, wherein the shell assembly forms a measuring cavity for arranging a diaphragm to be measured; the measuring and recombining component is arranged on the shell component and is used for obtaining the weight of the diaphragm to be measured; the humidity measuring piece is arranged on the shell assembly and used for obtaining the humidity of the membrane to be measured; wherein the housing assembly comprises two housings; the measuring and recombining piece comprises a transmitting piece and a receiving piece, wherein the transmitting piece and the receiving piece are respectively arranged on the two shells, the isolating piece is arranged on the shell provided with the humidity measuring piece, and the humidity measuring piece and the transmitting piece or the receiving piece are positioned on the same shell. The membrane detection mechanism can improve the efficiency of confirming the dry film quality of the membrane to be detected through the membrane detection mechanism, so that the risk of the membrane to be detected on the sunny and shady surface can be reduced; and the mode can improve the integration level of the diaphragm detection mechanism and improve the measurement accuracy.

Description

Diaphragm detection mechanism, coating device and diaphragm coating method
Technical Field
The application relates to the technical field of membrane detection, in particular to a membrane detection mechanism, a coating device and a membrane coating method.
Background
Before the battery is produced, the pole piece of the battery needs to be subjected to a dyeing work so that the pole piece is formed with a membrane. When the polar plate is coated and dyed, the existing coating device can be applied, but the membrane detection mechanism of the existing coating device has two functions of membrane appearance and membrane weight monitoring, and cannot acquire the humidity of the membrane, so that the dry film weight of the membrane cannot be confirmed in time, the risk of a sunny and shady surface exists, and if the sunny and shady surface exists, the membrane is pulled in a flowing way, so that the risk of lithium precipitation exists in the battery; and the existing coating device also needs staff to manually adjust the oven, and hysteresis exists.
Disclosure of Invention
The application provides a diaphragm detection mechanism, a coating device and a diaphragm coating method, and aims to solve the problems.
The application provides a diaphragm detection mechanism, which comprises: the device comprises a shell assembly, a weight measuring assembly, a humidity measuring piece and an isolation piece, wherein the shell assembly forms a measuring cavity for arranging a diaphragm to be measured; the measuring and recombining component is arranged on the shell component and is used for obtaining the weight of the diaphragm to be measured; the humidity measuring piece is arranged on the shell assembly and used for obtaining the humidity of the membrane to be measured; the shell assembly comprises two shells, and the two shells are arranged at intervals to form a measuring cavity; the recombination detecting component comprises a transmitting component and a receiving component, the transmitting component and the receiving component are respectively arranged on the two shells, and the humidity detecting component is arranged on one of the shells; the isolation member is arranged on the shell provided with the humidity measuring member and is positioned between the humidity measuring member and the transmitting member or the receiving member on the same shell. Therefore, the weight and the humidity of the diaphragm to be detected can be detected and obtained through the diaphragm detection mechanism, and the efficiency of confirming the dry film quality of the diaphragm to be detected can be improved, so that the risk of the diaphragm to be detected on the sunny and shady side can be reduced; the method can improve the integration level of the diaphragm detection mechanism and the measurement precision; in addition, install the humidity and the weight of measuring diaphragm coplanar with each other that can test the diaphragm that awaits measuring on a casing with weight measurement subassembly and wet piece, be convenient for follow-up calculation the dry film quality of diaphragm that awaits measuring, and set up the isolation piece between wet piece and the transmitting piece or the receiving piece that awaits measuring on same casing, can further reduce the signal interference between wet piece and transmitting piece or the receiving piece, improve the accuracy of weight and humidity that obtains.
In some embodiments, the emitting element and the receiving element are overlapped along the arrangement direction of the two shells, and the humidity measuring element and the emitting element or the receiving element which are positioned on the same shell are arranged at intervals. Therefore, the emitting piece and the receiving piece are overlapped along the arrangement direction of the two shells, the receiving piece is favorable for receiving the emitting signal of the emitting piece penetrating the membrane to be tested, the efficiency of the weight testing of the membrane to be tested by the weight testing piece can be improved, and the humidity testing piece and the emitting piece or the receiving piece are arranged at intervals, so that the signal interference related to the temperature between the humidity testing piece and the emitting piece or the receiving piece can be reduced.
In some embodiments, the diaphragm detection mechanism further includes a temperature sensor disposed on the isolation member for acquiring a temperature of the diaphragm to be detected. Therefore, the temperature sensor can acquire the temperature of the diaphragm to be measured, so that the interference of the temperature on the weight measuring assembly and the humidity measuring piece is reduced.
In some embodiments, a first guide rail and a second guide rail are respectively arranged on the two shells, and the extending directions of the first guide rail and the second guide rail are perpendicular to the transmission direction and the arrangement direction of the to-be-detected membrane. Therefore, the first guide rail and the second guide rail are arranged to enable the diaphragm detection mechanism to be matched with other mechanisms to move, and in addition, the extending direction of the first guide rail and the extending direction of the second guide rail are perpendicular to the transmission direction and the arrangement direction of the diaphragms to be detected, so that the diaphragm detection mechanism can conveniently detect the diaphragms to be detected at any position on the workbench.
In some embodiments, the measurement assembly comprises an areal densitometer assembly; and/or the moisture meter comprises a moisture meter. Therefore, the accuracy of acquiring the weight of the membrane to be measured can be improved by arranging the measuring and recombination part as an area density meter component, and the accuracy of acquiring the humidity of the membrane to be measured can be improved by arranging the humidity measuring and recombination part as a moisture meter.
The application also provides a coating device which comprises the membrane detection mechanism, the oven mechanism and the control mechanism, wherein the oven mechanism is used for drying the membrane to be tested; the film detection mechanism is used for acquiring the weight and the humidity of the film to be detected output from the oven mechanism; the control mechanism is respectively in communication connection with the oven mechanism and the diaphragm detection mechanism, and is used for processing the weight and the humidity to obtain control signals, and the oven mechanism is controlled by the control signals. Therefore, the coating device of the embodiment can process the weight and the humidity to obtain the dry film quality of the to-be-detected membrane, and generate a control signal, so that the control signal is utilized to control the oven mechanism, the intelligent control of the oven mechanism can be realized, manual adjustment is not needed, and the loss of the to-be-detected membrane caused by the occurrence of defects is reduced.
In some embodiments, the coating device further comprises an unreeling mechanism, a reeling mechanism, and a workbench; the diaphragm detection mechanism, the unreeling mechanism, the reeling mechanism and the oven mechanism are connected with the workbench, and the oven mechanism is arranged between the unreeling mechanism and the reeling mechanism; the diaphragm detection mechanism is arranged between the oven mechanism and the winding mechanism; the unreeling mechanism is used for releasing the membrane to be tested onto the workbench; the winding mechanism is used for winding the dried membrane to be measured. Therefore, the diaphragm detection mechanism is arranged between the oven mechanism and the winding mechanism, so that the diaphragm detection mechanism can timely detect the diaphragm to be detected after being dried by the oven mechanism, and the control mechanism can timely adjust the oven mechanism, thereby reducing the loss of the diaphragm to be detected.
In some embodiments, the coating device further comprises an appearance detection mechanism, wherein the appearance detection mechanism is arranged between the oven mechanism and the membrane detection mechanism and is used for obtaining appearance information of the membrane to be detected on the workbench; the control mechanism is also in communication connection with the appearance detection mechanism, and is also used for processing the appearance information to obtain a defect type and controlling the oven mechanism by utilizing the defect type and the control signal. From this, set up outward appearance detection mechanism and can acquire the visual defect of the diaphragm that awaits measuring fast to be favorable to control mechanism in time to adjust oven mechanism, thereby further reduce the loss of the diaphragm that awaits measuring.
In some embodiments, the coating device further comprises a coating mechanism, wherein the coating mechanism is connected with the workbench and arranged between the unreeling mechanism and the oven mechanism, and is used for performing a coating and dyeing work; the control mechanism is also in communication connection with the coating mechanism and is also used for controlling the coating mechanism based on the control signal. Therefore, the control mechanism can acquire the dry film quality of the to-be-measured membrane based on the weight and the humidity, and generate a control signal based on the dry film quality, and if the dry film quality of the to-be-measured membrane does not reach the standard, the control mechanism can adjust the coating mechanism in time, so that the loss caused by the fact that the dry film quality does not reach the standard is reduced.
In some embodiments, the paint mechanism includes a paint tank assembly for storing paint and a screw pump assembly connected to the paint tank assembly for painting the diaphragm to be measured. Therefore, the weight of the diaphragm to be measured can be adjusted by controlling the pump speed of the screw pump assembly.
The application also provides a film coating method, which is applied to a coating device, wherein the coating device comprises the film detection mechanism of any one of the above steps, and the film coating method further comprises the following steps: the weight and the humidity of the membrane to be detected are obtained by using a membrane detection mechanism; the drying parameters of the coating device are adjusted based on weight and humidity. Therefore, the embodiment can realize simultaneous testing of the weight and the humidity of the to-be-tested membrane, and accordingly the drying parameters of the coating device can be adjusted based on the weight and the humidity, and the to-be-tested membrane meets preset requirements when being shipped.
In some embodiments, the coating apparatus further comprises an appearance detection mechanism and a workbench, and the step of adjusting the drying parameters of the coating apparatus based on weight and humidity comprises: the appearance information of the membrane to be detected on the workbench is obtained by using an appearance detection mechanism; acquiring the dry film weight of the film to be tested based on the weight and the humidity; determining whether the diaphragm to be detected has defects or not based on the appearance information; if the defects exist, the defect type is obtained based on the defects, and the drying parameters of the coating device are adjusted based on the defect type and the dry film weight. Therefore, the appearance information, weight and humidity of the film to be measured can be obtained, and the drying parameters of the coating device can be adjusted based on the appearance information, the weight and the humidity, so that the film shipment rate of the coating device can be improved.
In some embodiments, the step of adjusting the drying parameters of the coating apparatus based on the defect type and dry film weight comprises: and controlling the coating device to stop working in response to the defect type being any one or any combination of scratch, bubble and coating leakage. Therefore, when the defect type is any one or any combination of scraping, air bubble and coating leakage, the coating device is controlled to stop working, so that the loss of the to-be-detected membrane caused by the occurrence of scraping, air bubble or coating leakage of the to-be-detected membrane can be reduced.
In some embodiments, the step of adjusting the drying parameters of the coating apparatus based on the defect type and dry film weight comprises: and in response to the defect type being that the film width is larger or smaller, adjusting the width of the film to be measured so that the film width reaches the preset film width under the condition that the difference between the dry film weight and the preset target weight is smaller than the preset difference. Therefore, the film to be tested of the coating device meets the requirement of the preset film width, and the film shipment rate of the coating device is improved.
In some embodiments, the coating apparatus further comprises an oven mechanism, the drying parameters comprising temperature and air frequency of the oven mechanism, the step of adjusting the drying parameters of the coating apparatus based on the defect type and dry film weight comprising: in response to the defect type being cracking and/or wrinkling, reducing the temperature and/or wind frequency of the oven mechanism while maintaining the difference between the dry film weight and the preset target weight less than the preset difference. Therefore, when the defect type is cracking and/or wrinkling, the temperature and/or wind frequency of the oven mechanism are reduced, and the loss of the to-be-detected membrane caused by cracking and/or wrinkling can be reduced.
In some embodiments, the coating apparatus further comprises a coating mechanism, the drying parameter further comprises a pump speed of the coating mechanism, and the step of adjusting the drying parameter of the coating apparatus based on the defect type and dry film weight comprises: and adjusting the pump speed to enable the dry film weight to reach the preset target weight in response to the difference between the dry film weight and the preset target weight being greater than or equal to the preset difference. Therefore, the film to be tested of the coating device meets the requirement of the preset target weight, and the film shipment rate of the coating device is improved.
In some embodiments, the film coating method further comprises: and controlling the coating device to stop working and giving an alarm when the number of times of adjusting the drying parameters of the coating device is larger than a preset number of times threshold and the membrane to be tested still has defects. Therefore, the loss of the membrane to be tested caused by the scheme problem can be reduced, and the cost is reduced.
Unlike the prior art, the diaphragm detection mechanism of the present application includes: the device comprises a shell assembly, a weight measuring assembly, a humidity measuring piece and an isolation piece, wherein the shell assembly forms a measuring cavity for arranging a diaphragm to be measured; the measuring and recombining component is arranged on the shell component and is used for obtaining the weight of the diaphragm to be measured; the humidity measuring piece is arranged on the shell assembly and used for obtaining the humidity of the membrane to be measured; the shell assembly comprises two shells, and the two shells are arranged at intervals to form a measuring cavity; the recombination detecting component comprises a transmitting component and a receiving component, the transmitting component and the receiving component are respectively arranged on the two shells, and the humidity detecting component is arranged on one of the shells; the isolation member is arranged on the shell provided with the humidity measuring member and is positioned between the humidity measuring member and the transmitting member or the receiving member on the same shell. Through the mode, the diaphragm detection mechanism can detect and acquire the weight and the humidity of the diaphragm to be detected through the diaphragm detection mechanism, and the efficiency of confirming the dry film quality of the diaphragm to be detected can be improved, so that the risk of the diaphragm to be detected on the sunny and shady side can be reduced; the method can improve the integration level of the diaphragm detection mechanism and the measurement precision; in addition, install the humidity and the weight of measuring diaphragm coplanar with each other that can test the diaphragm that awaits measuring on a casing with weight measurement subassembly and wet piece, be convenient for follow-up calculation the dry film quality of diaphragm that awaits measuring, and set up the isolation piece between wet piece and the transmitting piece or the receiving piece that awaits measuring on same casing, can further reduce the signal interference between wet piece and transmitting piece or the receiving piece, improve the accuracy of weight and humidity that obtains.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a side view of one embodiment of a diaphragm sensing mechanism of the present application;
FIG. 2 is a front view of an embodiment of a diaphragm sensing mechanism of the present application;
FIG. 3 is a top view of one embodiment of a diaphragm sensing mechanism of the present application;
FIG. 4 is a schematic view of an embodiment of a coating apparatus according to the present application;
FIG. 5 is a schematic flow chart of a first embodiment of the film coating method of the present application;
FIG. 6 is a flow chart of a second embodiment of the film coating method of the present application.
Description of the reference numerals: diaphragm detecting mechanism 100, housing assembly 10, first housing 11, second housing 12, measuring chamber 13, measuring recombination member 30, emitting member 31, receiving member 32, moisture measuring member 20, insulating member 40, temperature sensor 50, first guide rail 60, second guide rail 70, coating apparatus 200, table 210, unreeling mechanism 220, coating mechanism 230, coating tank assembly 231, screw pump assembly 232, control mechanism 240, oven mechanism 250, appearance detecting mechanism 260, and reeling mechanism 270.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.
In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).
In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.
At present, from the market development prospect and application trend, the battery has the advantages of high energy density, high power density, multiple recycling times, long storage time and the like, and is widely used in various fields. The device is applied to various energy storage power supply systems such as hydraulic power, firepower, wind power, solar power stations and the like, and provides power for high-power devices, such as electric bicycles, electric motorcycles, electric automobiles and the like, and various fields such as military equipment, aerospace and the like.
As an energy storage power source, the battery includes an end cap, a case, an electrode assembly, and other functional components. The electrode assembly is a component of electrochemical reaction in the battery cell, wherein the electrode assembly is mainly formed by winding a positive electrode plate and a negative electrode plate, and a separator is generally arranged between the positive electrode plate and the negative electrode plate.
Therefore, before the battery is produced, the pole piece of the battery needs to be subjected to a dyeing work so that the pole piece is formed with a membrane. When the pole piece is coated and dyed, the existing coating device can be applied, but the membrane detection mechanism of the existing coating device has two functions of membrane appearance and membrane weight monitoring, the humidity of the membrane cannot be obtained, so that the dry film weight of the membrane cannot be confirmed in time, the risk of a sunny and shady surface can be caused, if the sunny and shady surface of the membrane exists, the risk of lithium precipitation in the battery can be caused by membrane flow pulling, and the existing coating device also needs staff to manually adjust an oven, so that hysteresis quality exists.
In order to solve the above-mentioned problems, the present application firstly proposes a diaphragm detecting mechanism, please refer to fig. 1 to 3, fig. 1 is a side view of an embodiment of the diaphragm detecting mechanism of the present application; FIG. 2 is a front view of an embodiment of a diaphragm sensing mechanism of the present application; fig. 3 is a top view of an embodiment of the diaphragm detecting mechanism of the present application, and as shown in fig. 1 to 3, the diaphragm detecting mechanism 100 of the present embodiment includes a housing assembly 10, a detecting member 30, a detecting member 20 and an isolating member 40.
Wherein the housing assembly 10 forms a measuring chamber 13 for setting a diaphragm to be measured; the measuring and recombining component 30 is arranged on the shell component 10 and is used for acquiring the weight of the diaphragm to be measured; the humidity measuring member 20 is mounted on the housing assembly 10, and is used for obtaining the humidity of the membrane to be measured.
As shown in fig. 1, the housing assembly 10 is provided with a measuring cavity 13 as shown in fig. 1, and when the membrane to be measured passes through the measuring cavity 13, the measuring recombination member 30 and the humidity measuring member 20 are arranged on the housing assembly 10 and can detect the membrane to be measured at the same time, thereby obtaining the humidity and the weight of the membrane to be measured at the same position.
Wherein, in the present embodiment, the housing assembly 10 comprises two housings spaced apart to form a measurement cavity 13; the recombination member 30 includes a transmitting member 31 and a receiving member 32, the transmitting member 31 and the receiving member 32 are respectively disposed on two housings, and the humidity measuring member 20 is disposed on one of the housings.
As shown in fig. 1, the housing assembly 10 includes two housings, namely a first housing 11 and a second housing 12, where the first housing 11 is disposed on one side of a to-be-measured diaphragm, the second housing 12 is disposed on the other side of the to-be-measured diaphragm, and an interval between the first housing 11 and the second housing 12 is a measurement cavity 13, and when the to-be-measured diaphragm passes through the measurement cavity 13, the measurement recombination member 30 and the humidity measurement member 20 can detect one position of the to-be-measured diaphragm at the same time, so as to obtain humidity and weight of the same position of the to-be-measured diaphragm.
As shown in fig. 1 and 2, the transmitting member 31 and the humidity measuring member 20 are disposed on the first housing 11 in a penetrating manner, the testing end surfaces of the transmitting member 31 and the humidity measuring member 20 are disposed on one side of the first housing 11 close to the membrane to be tested, the receiving member 32 is disposed on the second housing 12, and the receiving end surface of the receiving member 32 is disposed on one side of the second housing 12 close to the membrane to be tested.
In other embodiments, the transmitting member 31 may be disposed through the first housing 11, and the receiving member 32 and the humidity measuring member 20 may be disposed through the second housing 12.
In this embodiment, the isolation member 40 is disposed on the housing provided with the humidity measuring member 20, and is located between the humidity measuring member 20 and the transmitting member 31 or the receiving member 32 on the same housing.
As shown in fig. 1 to 3, the insulating member 40 is disposed on the first housing 11 and between the humidity measuring member 20 and the emitting member 31, for reducing signal interference and temperature interference between the humidity measuring member 20 and the emitting member 31.
In other embodiments, if the moisture meter 20 is disposed on the second housing 12 and spaced apart from the receiving member 32, the isolation member 40 is disposed between the moisture meter 20 and the receiving member 32 as described above.
In the above scheme, the weight and the humidity of the to-be-detected diaphragm can be detected and obtained simultaneously through the diaphragm detecting mechanism 100, so that the efficiency of confirming the dry film quality of the to-be-detected diaphragm can be improved, and the risk of the to-be-detected diaphragm having a sunny and shady surface can be reduced; and the mode can improve the integration level of the diaphragm detection mechanism and improve the measurement accuracy. In addition, the humidity and weight of the same position of the membrane to be measured can be measured by installing the measuring recombination member 30 and the humidity measuring member 20 on one shell, so that the dry film quality of the membrane to be measured can be calculated conveniently, and the signal interference between the humidity measuring member 20 and the transmitting member 31 or the receiving member 32 can be further reduced by arranging the isolation member 40 between the humidity measuring member 20 and the transmitting member 31 or the receiving member 32 on the same shell, so that the accuracy of the obtained weight and humidity is improved.
In some embodiments, the emitting element 31 and the receiving element 32 are overlapped along the arrangement direction of the two shells, and the humidity measuring element 20 and the emitting element 31 or the receiving element 32 on the same shell are arranged at intervals.
As shown in fig. 1 to 3, the emitting member 31 and the receiving member 32 are disposed to overlap in the arrangement direction of the first housing 11 and the second housing 12. As shown in fig. 1 and 3, the humidity measuring member 20 and the emitting member 31 are disposed on the first housing 11 at intervals. In other embodiments, if the moisture meter 20 is disposed on the second housing 12, the moisture meter 20 and the receiving member 32 are also disposed at intervals.
In the above scheme, overlapping the emitting piece 31 and the receiving piece 32 along the arrangement direction of the two shells is beneficial for the receiving piece 32 to receive the emitting signal of the emitting piece 31 penetrating the membrane to be tested, so that the efficiency of the weight testing of the membrane to be tested by the weight testing and recombination piece 30 can be improved, and the signal interference between the humidity testing piece 20 and the emitting piece 31 or the receiving piece 32 can be reduced by interval arrangement.
In some embodiments, the diaphragm sensing mechanism 100 further includes a temperature sensor 50, where the temperature sensor 50 is disposed on the isolation member 40 for acquiring the temperature of the diaphragm to be measured.
As shown in fig. 1, a temperature sensor 50 may also be provided on the insulating member 40, and the temperature sensor 50 is used to obtain the temperature of the diaphragm to be measured. The testing end surface of the temperature sensor 50 is disposed on one side of the housing assembly 10 close to the diaphragm to be tested.
In the above-mentioned scheme, the temperature sensor 50 is provided to obtain the temperature of the diaphragm to be measured, so as to reduce the interference of the temperature to the weight measuring assembly and the humidity measuring member 20.
In some embodiments, a first guide rail 60 and a second guide rail 70 are respectively disposed on the two housings, and the extending directions of the first guide rail 60 and the second guide rail 70 are perpendicular to the conveying direction and the arrangement direction of the to-be-tested films.
As shown in fig. 1 to 3, two first guide rails 60 are provided on both sides of the first housing 11, and two second guide rails 70 are provided on both sides of the second housing 12. The shapes of the first rail 60 and the second rail 70 are not limited to those shown in the drawings.
In the above-mentioned scheme, the first guide rail 60 and the second guide rail 70 are provided to enable the diaphragm detecting mechanism 100 to move in cooperation with other mechanisms, and in addition, the extending direction of the first guide rail 60 and the second guide rail 70 is set to be perpendicular to the transmission direction and the arrangement direction of the diaphragms to be detected, so that the diaphragm detecting mechanism 100 can conveniently detect the diaphragms to be detected at any position on the workbench.
In some embodiments, the measurement assembly 30 includes an areal densitometer assembly; and/or the moisture meter 20 includes a moisture meter.
That is, in the present embodiment, the weight 30 may be provided as an area densitometer assembly, and/or the moisture meter 20 may be provided as a moisture meter.
In the above-mentioned scheme, the accuracy of obtaining the weight of the diaphragm to be measured can be improved by setting the measurement recombination member 30 as an area density meter assembly, and the accuracy of obtaining the humidity of the diaphragm to be measured can be improved by setting the humidity measurement member 20 as a moisture meter.
In some embodiments, as shown in fig. 1 to 3, the diaphragm detecting mechanism 100 of the present embodiment includes a housing assembly 10, a measuring assembly 30, a humidity measuring assembly 20, an isolating member 40 and a temperature sensor 50.
Wherein the housing assembly 10 forms a measuring chamber 13 for setting a diaphragm to be measured; the measuring and recombining component 30 is arranged on the shell component 10 and is used for acquiring the weight of the diaphragm to be measured; the humidity measuring member 20 is mounted on the housing assembly 10, and is used for obtaining the humidity of the membrane to be measured. The housing assembly 10 comprises two housings spaced apart to form a measurement cavity 13; the recombination member 30 includes a transmitting member 31 and a receiving member 32, the transmitting member 31 and the receiving member 32 are respectively disposed on two housings, and the humidity measuring member 20 is disposed on one of the housings. The emitting piece 31 and the receiving piece 32 are overlapped along the arrangement direction of the two shells, and the humidity measuring piece 20 and the emitting piece 31 or the receiving piece 32 which are positioned on the same shell are arranged at intervals. The insulating member 40 is provided on the housing provided with the wetness detecting member 20, and is located between the wetness detecting member 20 and the emitting member 31 or the receiving member 32 on the same housing. The temperature sensor 50 is disposed on the insulating member 40, and is used for acquiring the temperature of the diaphragm to be measured. In this embodiment, the two housings are further provided with a first guide rail 60 and a second guide rail 70, respectively, and the extending directions of the first guide rail 60 and the second guide rail 70 are perpendicular to the conveying direction and the arrangement direction of the to-be-tested membrane.
Wherein the recombinant measurement component 30 comprises an areal density meter assembly; and/or the moisture meter 20 includes a moisture meter.
In addition, the beneficial effects of the diaphragm detecting mechanism 100 of the present embodiment are as described above, and are not described herein.
The present application further provides a coating apparatus, please refer to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of the coating apparatus of the present application, and as shown in fig. 4, a coating apparatus 200 of the present embodiment includes a film detecting mechanism 100, an oven mechanism 250 and a control mechanism 240 according to any of the above embodiments.
The oven mechanism 250 is used for drying the membrane to be tested; the film detection mechanism 100 is used for acquiring the weight and humidity of the film to be detected output from the oven mechanism 250; the control mechanism 240 is communicatively connected to the oven mechanism 250 and the diaphragm detecting mechanism 100, and is configured to process the weight and the humidity to obtain control signals, and control the oven mechanism 250 using the control signals.
In this embodiment, after the weight and humidity of the to-be-measured diaphragm are obtained by the diaphragm detecting mechanism 100, the weight and humidity of the to-be-measured diaphragm are sent to the control mechanism 240, if the temperature sensor 50 is disposed in the diaphragm detecting mechanism 100, the diaphragm detecting mechanism 100 can also send the temperature, the weight and the humidity to the control mechanism 240, the control mechanism 240 can process and analyze the to-be-measured diaphragm after obtaining the weight, the humidity and the temperature of the to-be-measured diaphragm, so as to obtain the dry film quality of the to-be-measured diaphragm, and generate a control signal based on the dry film quality, and the control mechanism 240 can send the control signal to the oven mechanism 250, so as to adjust the oven mechanism 250, thereby enabling the to-be-measured diaphragm subjected to the drying treatment of the oven mechanism 250 to meet the preset requirements.
Therefore, the coating device 200 of the embodiment can process the weight and the humidity to obtain the dry film quality of the to-be-detected membrane, and generate the control signal, so that the control signal is utilized to control the oven mechanism 250, the intelligent control of the oven mechanism 250 can be realized, manual adjustment is not needed, and the loss of the to-be-detected membrane caused by the occurrence of defects is reduced.
In some embodiments, the coating apparatus 200 further comprises an unwind mechanism 220, a wind-up mechanism 270, and a stage 210; the diaphragm detection mechanism 100, the unreeling mechanism 220, the reeling mechanism 270 and the oven mechanism 250 are connected with the workbench 210, and the oven mechanism 250 is arranged between the unreeling mechanism 220 and the reeling mechanism 270; the film detection mechanism 100 is arranged between the oven mechanism 250 and the winding mechanism 270; wherein the unreeling mechanism 220 is used for releasing the film to be tested onto the workbench 210; the winding mechanism 270 is used for winding the dried membrane to be measured.
As shown in fig. 4, in the present embodiment, the coating apparatus 200 further includes an unreeling mechanism 220, a reeling mechanism 270, and a workbench 210, and the unreeling mechanism 220, the reeling mechanism 270, and the oven mechanism 250 are all connected to the workbench 210. The working process of the coating device 200 is as follows: by controlling the unwinding mechanism 220 to start working, the unwinding mechanism 220 can drive the rotating wheel to start working so that the substrate (such as a pole piece) on the rotating wheel starts to drive on the workbench 210, after the substrate is subjected to the dyeing operation, the substrate coated with the film to be measured is conveyed into the oven mechanism 250, the oven mechanism 250 performs drying treatment on the substrate coated with the film to be measured, and after the drying treatment, the substrate with the film to be measured is subjected to rolling operation by the rolling wheel in the rolling mechanism 270. The film detecting mechanism 100 is disposed between the oven mechanism 250 and the winding mechanism 270.
In the above scheme, the diaphragm detecting mechanism 100 is disposed between the oven mechanism 250 and the winding mechanism 270, so that the diaphragm detecting mechanism 100 can timely detect the diaphragm to be detected after being dried by the oven mechanism 250, and the control mechanism 240 can timely adjust the oven mechanism 250, thereby reducing the loss of the diaphragm to be detected.
In some embodiments, the coating apparatus 200 further includes an appearance detection mechanism 260, where the appearance detection mechanism 260 is disposed between the oven mechanism 250 and the film detection mechanism 100, and is used for obtaining appearance information of the film to be tested on the workbench 210; the control mechanism 240 is further in communication with the appearance detecting mechanism 260, and the control mechanism 240 is further configured to process the appearance information to obtain a defect type, and control the oven mechanism 250 by using the defect type and the control signal.
As shown in fig. 4, the coating apparatus 200 of the present embodiment further includes an appearance detection mechanism 260, where the appearance detection mechanism 260 is disposed between the oven mechanism 250 and the film detection mechanism 100, and in this embodiment, the appearance detection apparatus may be configured as an image capturing device for capturing images of the film to be tested that is driven on the workbench 210, so as to obtain appearance information of the film to be tested. The appearance detection mechanism 260 is also in communication connection with the control mechanism 240, at this time, the appearance detection mechanism 260 can send the appearance information of the to-be-detected membrane dried by the oven mechanism 250 to the control mechanism 240, the control mechanism 240 can analyze and process the appearance information, so as to obtain the defect type of the to-be-detected membrane, at this time, the control mechanism 240 can adjust the oven mechanism 250 by using the defect type and the control signal, so that the defect of the to-be-detected membrane dried by the oven mechanism 250 can be eliminated.
In other embodiments, the appearance detecting mechanism 260 may analyze the appearance information to obtain the defect type, and send the defect type to the control mechanism 240. In addition, after the appearance detecting mechanism 260 or the control mechanism 240 obtains the defect type of the to-be-detected film, an alarm process is required to make the staff know that the to-be-detected film currently passing through the oven mechanism 250 has a defect.
In the above scheme, the diaphragm detecting mechanism 100 is disposed between the oven mechanism 250 and the winding mechanism 270, so that the diaphragm detecting mechanism 100 can timely detect the diaphragm to be detected after being dried by the oven mechanism 250, and the control mechanism 240 can timely adjust the oven mechanism 250, thereby reducing the loss of the diaphragm to be detected.
In some embodiments, the coating device 200 further comprises a coating mechanism 230, the coating mechanism 230 is connected to the workbench 210 and disposed between the unreeling mechanism 220 and the oven mechanism 250, and the coating mechanism 230 is used for performing a coating and dyeing operation; wherein the control mechanism 240 is also communicatively coupled to the coating mechanism 230 and is further configured to control the coating mechanism 230 based on the control signal.
As shown in fig. 4, the coating mechanism 230 is connected to the table 210 and is disposed between the unreeling mechanism 220 and the oven mechanism 250. As described above, the coating mechanism 230 is used to perform a coating operation on the substrate on the platen 210; furthermore, in the present embodiment, the control mechanism 240 may also be communicatively coupled to the coating mechanism 230 for controlling the coating mechanism 230 based on the control signal.
In the above scheme, the control mechanism 240 may obtain the dry film quality of the to-be-measured membrane based on the weight and the humidity, and generate the control signal based on the dry film quality, if the dry film quality of the to-be-measured membrane does not reach the standard, the control mechanism 240 may adjust the coating mechanism 230 in time, thereby reducing the loss caused by the fact that the dry film quality does not reach the standard.
In some embodiments, the paint mechanism 230 includes a paint tank assembly 231 and a screw pump assembly 232, the paint tank assembly 231 for storing paint, and the screw pump assembly 232 is connected to the paint tank assembly 231 for painting the diaphragm to be measured.
As shown in fig. 4, the paint mechanism 230 includes a paint tank assembly 231 and a screw pump assembly 232, with the paint tank assembly 231 for storing paint. The screw pump assembly 232 is generally composed of a central shaft (screw pump shaft) and one or more blades, and the screw pump assembly 232 sucks the paint from the paint tank assembly 231 by using centrifugal force, torsion force and establishment of a sealed space through rotation and movement of the blades, and then ejects the paint through a nozzle, thereby achieving the purpose of painting and dyeing the substrate.
That is, in the above-described scheme, the present embodiment can achieve adjustment of the weight of the diaphragm to be measured by controlling the pump speed of the screw pump assembly 232.
In one embodiment, as shown in fig. 4, the coating apparatus 200 of the present embodiment includes the film detecting mechanism 100, the workbench 210, the unreeling mechanism 220, the coating mechanism 230, the control mechanism 240, the oven mechanism 250, the appearance detecting mechanism 260, and the reeling mechanism 270 of any one of the above embodiments.
The film detection mechanism 100, the unreeling mechanism 220, the coating mechanism 230, the oven mechanism 250, the appearance detection mechanism 260 and the reeling mechanism 270 are all connected with the workbench 210, the oven mechanism 250 is arranged between the unreeling mechanism 220 and the reeling mechanism 270, and the oven mechanism 250 is used for drying the film to be detected; the film detection mechanism 100 is disposed between the oven mechanism 250 and the winding mechanism 270, and the film detection mechanism 100 is used for acquiring the weight and humidity of the film to be detected output from the oven mechanism 250; the unreeling mechanism 220 is used for driving the membrane to be tested on the workbench 210; the winding mechanism 270 is used for winding the membrane to be measured; the appearance detecting mechanism 260 is disposed between the oven mechanism 250 and the membrane detecting mechanism 100, and is used for obtaining appearance information of the membrane to be detected on the workbench 210.
The control mechanism 240 is respectively in communication connection with the oven mechanism 250, the appearance detecting mechanism 260 and the membrane detecting mechanism 100, and the control mechanism 240 is used for processing appearance information to obtain a defect type, processing weight and humidity to obtain a control signal, and finally controlling the oven mechanism 250 by using the defect type and the control signal.
The control mechanism 240 is also communicatively coupled to the coating mechanism 230 and is also configured to control the coating mechanism 230 based on the control signal.
As shown in fig. 4, the coating mechanism 230 includes a coating tank assembly 231 and a screw pump assembly 232, the coating tank assembly 231 is used for storing coating, and the screw pump assembly 232 is connected with the coating tank assembly 231 and is used for coating and dyeing the membrane to be tested.
In addition, the beneficial effects of the coating device 200 of the present embodiment are as described above, and are not described herein.
The present application also provides a film coating method, which can be applied to the coating apparatus 200 of the above embodiment, referring to fig. 5, fig. 5 is a schematic flow chart of a first embodiment of the film coating method of the present application. As shown in fig. 5, the film coating method of the present embodiment specifically includes steps S101 to S102: step S101: and acquiring the weight and the humidity of the membrane to be detected by using a membrane detection mechanism. Step S102: the drying parameters of the coating device are adjusted based on weight and humidity.
In this embodiment, the weight and humidity of the film to be measured at the same position can be obtained by the film detection mechanism 100 shown in fig. 1 to 3, and then the control mechanism 240 of the coating device 200 shown in fig. 4 is used to receive the weight and humidity of the film to be measured at the same position, and the dry film quality of the film to be measured is obtained by using the weight and humidity, so that the drying parameters of the coating device 200 are adjusted based on the dry film quality.
In the above-mentioned scheme, the present embodiment can realize simultaneous testing of the weight and humidity of the to-be-tested film, so that the drying parameters of the coating device 200 can be adjusted based on the weight and humidity, so that the to-be-tested film meets the preset requirements when being shipped.
In some embodiments, the step of adjusting the drying parameters of the coating device based on weight and humidity comprises: the appearance information of the membrane to be detected on the workbench is obtained by using an appearance detection mechanism; acquiring the dry film weight of the film to be tested based on the weight and the humidity; determining whether the diaphragm to be detected has defects or not based on the appearance information; if the defects exist, the defect type is obtained based on the defects, and the drying parameters of the coating device are adjusted based on the defect type and the dry film weight.
In this embodiment, the appearance detection mechanism 260 shown in fig. 4 may obtain the appearance information of the film to be tested on the workbench 210, the control mechanism 240 may obtain the appearance information and analyze the same to obtain the defect type, in addition, the control mechanism 240 may obtain the dry film weight of the film to be tested based on the weight and the humidity as described above, and if the film to be tested currently has a defect, the control mechanism 240 may adjust the drying parameters of the coating apparatus 200 based on the current defect type and dry film quality. Specific methods of regulation are described below.
In the above-mentioned scheme, the present embodiment can obtain the appearance information, weight and humidity of the film to be tested, and adjust the drying parameters of the coating device 200 based on the three, so as to be beneficial to improving the film shipment rate of the coating device 200.
In some embodiments, the step of adjusting the drying parameters of the coating apparatus based on the defect type and dry film weight comprises: and controlling the coating device to stop working in response to the defect type being any one or any combination of scratch, bubble and coating leakage.
If the control mechanism 240 analyzes that the defect type of the film to be tested is any one or any combination of scraping, air bubble and coating leakage, it represents that there is a large problem with the coating device 200, and at this time, adjusting the drying parameters cannot solve the defect, it is necessary to control the coating device 200 to stop working, and the coating device 200 can continue working after improvement and adjustment.
In the above scheme, when the defect type is any one or any combination of scratch, bubble and coating leakage, the coating device 200 is controlled to stop working, so that the loss of the to-be-measured membrane caused by the scratch, bubble or coating leakage of the to-be-measured membrane can be reduced.
In some embodiments, the step of adjusting the drying parameters of the coating apparatus based on the defect type and dry film weight comprises: and in response to the defect type being that the film width is larger or smaller, adjusting the width of the film to be measured so that the film width reaches the preset film width under the condition that the difference between the dry film weight and the preset target weight is smaller than the preset difference.
If the control mechanism 240 analyzes that the defect type of the measured diaphragm is that the film width is larger or smaller, the width of the measured diaphragm needs to be adjusted to make the film width reach the preset film width, and in the adjusting process, the dry film quality of the measured diaphragm needs to be kept unchanged, that is, in the adjusting process, the difference between the dry film weight and the preset target weight needs to be smaller than the preset difference. The preset difference value can be set based on actual conditions.
In the above scheme, the film to be tested of the coating device 200 can meet the requirement of the preset film width, and the film shipment rate of the coating device 200 can be improved.
In some embodiments, the drying parameters include temperature and air frequency of the oven mechanism, and the step of adjusting the drying parameters of the coating apparatus based on the defect type and dry film weight includes: in response to the defect type being cracking and/or wrinkling, reducing the temperature and/or wind frequency of the oven mechanism while maintaining the difference between the dry film weight and the preset target weight less than the preset difference.
If the control mechanism 240 analyzes that the defect type of the measured film is cracking and/or wrinkling, it indicates that the temperature and/or wind frequency of the current oven mechanism 250 is too high, so that the film to be measured is cracked or wrinkled, and at this time, the control mechanism 240 needs to reduce the temperature and/or wind frequency of the oven mechanism 250 under the condition that the difference between the dry film weight and the preset target weight is kept smaller than the preset difference.
In the above scheme, when the defect type is cracking and/or wrinkling, the temperature and/or wind frequency of the oven mechanism 250 are reduced, so that the loss of the to-be-tested membrane caused by cracking and/or wrinkling can be reduced.
In some embodiments, the drying parameters further comprise a pump speed of the coating mechanism, and the step of adjusting the drying parameters of the coating device based on the defect type and dry film weight comprises: and adjusting the pump speed to enable the dry film weight to reach the preset target weight in response to the difference between the dry film weight and the preset target weight being greater than or equal to the preset difference.
If the difference between the dry film mass obtained by the control mechanism 240 based on the weight and the humidity analysis and the preset target weight is greater than or equal to the preset difference, it represents that the dry film mass of the currently-measured film does not meet the shipment requirement, and at this time, the control mechanism 240 needs to adjust the pump speed of the screw pump assembly 232 in the coating mechanism 230 so that the dry film weight reaches the preset target weight.
In the above-mentioned scheme, the present embodiment can make the to-be-measured film of the coating device 200 meet the requirement of the preset target weight, and improve the film shipment rate of the coating device 200.
In the above embodiment of the drying parameters of the coating apparatus 200, after the control mechanism 240 adjusts, the control mechanism 240 gives an alarm to prompt the operator that the coating apparatus 200 has been automatically adjusted after the defect of the film to be measured has disappeared.
In some embodiments, the film coating method further comprises: and controlling the coating device to stop working and giving an alarm when the number of times of adjusting the drying parameters of the coating device is larger than a preset number of times threshold and the membrane to be tested still has defects.
As described above, when the control mechanism 240 adjusts the drying parameters of the coating apparatus 200, there are cases where the parameters are over-adjusted or under-adjusted, and in this case, multiple adjustments are required to eliminate the defects of the film to be tested. If the adjustment is performed multiple times, the appearance detection mechanism 260 or the control mechanism 240 still finds that the film to be measured has defects, that is, the number of times of adjusting the drying parameters of the coating device 200 is greater than the preset number of times threshold, and the film to be measured has defects, which means that the current defects cannot be improved by adjusting the drying parameters, the coating device 200 needs to be controlled to stop working, and an alarm is given to prompt a worker to improve the scheme. The preset number of times threshold for adjusting the coating device 200 is set to 3 times in the present embodiment, and in other embodiments, the preset number of times threshold may be set based on actual situations.
In the above scheme, the film coating method of the embodiment can reduce the loss of the film to be tested caused by the scheme problem and reduce the cost.
Referring to fig. 6, fig. 6 is a flow chart of a second embodiment of the film coating method of the present application. As shown in fig. 6, the film coating method of the present embodiment specifically includes steps S201 to S206:
step S201: and acquiring the weight and the humidity of the membrane to be detected by using a membrane detection mechanism.
In this embodiment, the weight and humidity of the film to be measured at the same position can be obtained by the film detecting mechanism 100 shown in fig. 1 to 3, and the weight and humidity of the film to be measured are sent to the control mechanism 240 of the coating device 200 shown in fig. 4, and if the film detecting mechanism 100 is further provided with the temperature sensor 50, the temperature of the film to be measured is also required to be sent to the control mechanism 240.
Step S202: and obtaining appearance information of the membrane to be tested on the workbench by using an appearance detection mechanism.
The appearance detection mechanism 260 shown in fig. 4 can take the appearance information of the film to be tested on the workbench 210 and send the appearance information to the control mechanism 240.
Step S203: and acquiring the dry film weight of the film to be tested based on the weight and the humidity.
The control mechanism 240 may calculate the dry film weight of the to-be-measured diaphragm based on the weight and humidity analysis of the to-be-measured diaphragm, and if the diaphragm detecting mechanism 100 sends the temperature of the to-be-measured diaphragm to the control mechanism 240, the control mechanism 240 may calculate the dry film weight of the to-be-measured diaphragm based on the weight and humidity and temperature analysis of the to-be-measured diaphragm.
Step S204: and determining whether the to-be-detected membrane has defects or not based on the appearance information.
The control mechanism 240 also obtains appearance information of the to-be-detected membrane, and at this time, the control mechanism 240 can analyze based on the appearance information to determine whether the to-be-detected membrane has a defect.
If there is a defect, the process goes to step S205.
Step S205: and acquiring a defect type based on the defect, and adjusting a drying parameter of the coating device based on the defect type and the dry film weight.
The drying parameters include, among others, the temperature and air frequency of the oven mechanism 250 and the pump speed of the coating mechanism 230.
If the control mechanism 240 analyzes that the defect type of the to-be-detected film is any one or any combination of scraping, air bubble and coating leakage, it represents that there is a large problem in the coating device 200, and the coating device 200 needs to be controlled to stop working, and the coating device 200 can continue working after improvement and adjustment; if the control mechanism 240 analyzes that the defect type of the film to be measured is that the film width is larger or smaller, the width of the film to be measured needs to be adjusted to enable the film width to reach the preset film width, and in the adjusting process, the dry film quality of the film to be measured needs to be kept unchanged; if the control mechanism 240 analyzes that the defect type of the measured film is cracking and/or wrinkling, it represents that the temperature and/or wind frequency of the current oven mechanism 250 is too high, so that the film to be measured is cracked or wrinkled, and at this time, the control mechanism 240 needs to reduce the temperature and/or wind frequency of the oven mechanism 250 under the condition that the difference between the dry film weight and the preset target weight is kept smaller than the preset difference; if the difference between the dry film mass obtained by the control mechanism 240 based on the weight and humidity analysis and the preset target weight is greater than or equal to the preset difference, it represents that the dry film mass of the currently-measured film does not meet the shipment requirement, and at this time, the control mechanism 240 needs to adjust the pump speed of the screw pump assembly 232 in the coating mechanism 230 so that the dry film weight reaches the preset target weight.
After the control mechanism 240 performs adjustment, the control mechanism 240 performs alarm prompt to prompt the operator that the coating device 200 has been automatically adjusted after the defect of the to-be-measured membrane disappears.
Step S206: and controlling the coating device to stop working and giving an alarm when the number of times of adjusting the drying parameters of the coating device is larger than a preset number of times threshold and the membrane to be tested still has defects.
When the control mechanism 240 adjusts the drying parameters of the coating apparatus 200, there are cases where the parameters are over-adjusted or under-adjusted, and in this case, multiple adjustments are required to eliminate the defects of the film to be measured. When the control mechanism 240 performs multiple adjustments, the appearance detecting mechanism 260 or the control mechanism 240 still finds that the film to be measured has defects, that is, the number of times of adjusting the drying parameter of the coating device 200 is greater than the preset number of times threshold, and the film to be measured has defects, which means that the current defects cannot be improved by adjusting the drying parameter, and the coating device 200 needs to be controlled to stop working, and an alarm is given to prompt a worker to improve the scheme.
In addition, the beneficial effects of the film coating method of the present embodiment are as described above, and are not described herein.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., the units or components may be combined or integrated into another subsystem, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical, or other forms.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units. The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Claims (17)

1. A diaphragm detection mechanism, characterized in that the diaphragm detection mechanism comprises:
a housing assembly forming a measurement cavity for setting a diaphragm to be measured;
the weight measuring assembly is arranged on the shell assembly and is used for acquiring the weight of the diaphragm to be measured;
the humidity measuring piece is arranged on the shell assembly and used for obtaining the humidity of the membrane to be measured;
Wherein the housing assembly comprises two housings arranged at intervals to form the measurement cavity; the humidity measuring component is arranged on one of the two shells;
and the isolation piece is arranged on the shell provided with the humidity measuring piece and is positioned between the humidity measuring piece and the transmitting piece or the receiving piece on the same shell.
2. The diaphragm detecting mechanism of claim 1, wherein the emitting member and the receiving member are arranged in an overlapping manner along the arrangement direction of the two housings, and the humidity detecting member and the emitting member or the receiving member on the same housing are arranged at intervals.
3. The diaphragm sensing mechanism of claim 1, further comprising: and the temperature sensor is arranged on the isolation piece and is used for acquiring the temperature of the diaphragm to be detected.
4. The diaphragm detecting mechanism according to claim 2, wherein the two housings are respectively provided with a first guide rail and a second guide rail, and the extending directions of the first guide rail and the second guide rail are perpendicular to the conveying direction and the arrangement direction of the diaphragms to be detected.
5. The diaphragm sensing mechanism of claim 1, wherein the sensing assembly comprises an areal density meter assembly; and/or the moisture meter comprises a moisture meter.
6. A coating apparatus, characterized by comprising:
The oven mechanism is used for drying the membrane to be tested;
The diaphragm detecting mechanism according to any one of claims 1 to 5, for acquiring the weight and humidity of the diaphragm to be detected output from the oven mechanism;
And the control mechanism is respectively in communication connection with the oven mechanism and the diaphragm detection mechanism, is used for processing the weight and the humidity to obtain a control signal, and controls the oven mechanism by utilizing the control signal.
7. The coating device of claim 6, further comprising an unwind mechanism, a wind-up mechanism, and a work table; the diaphragm detection mechanism, the unreeling mechanism, the reeling mechanism and the oven mechanism are all connected with the workbench, and the oven mechanism is arranged between the unreeling mechanism and the reeling mechanism; the diaphragm detection mechanism is arranged between the oven mechanism and the winding mechanism;
The unreeling mechanism is used for releasing the film to be tested onto the workbench; the winding mechanism is used for winding the dried membrane to be measured.
8. The coating apparatus of claim 7, further comprising an appearance detection mechanism disposed between the oven mechanism and the film detection mechanism for obtaining appearance information of the film to be tested on the table;
The control mechanism is also in communication connection with the appearance detection mechanism, and is also used for processing the appearance information to obtain a defect type and controlling the oven mechanism by utilizing the defect type and the control signal.
9. The coating device according to claim 7, further comprising a coating mechanism connected to the table and disposed between the unreeling mechanism and the oven mechanism, wherein the coating mechanism is used for performing a dyeing operation on the film to be measured on the table;
Wherein the control mechanism is also in communication with the coating mechanism and is further configured to control the coating mechanism based on the control signal.
10. The coating apparatus of claim 9, wherein the coating mechanism comprises a coating tank assembly for storing coating material and a screw pump assembly connected to the coating tank assembly for performing a coating operation.
11. A film coating method, characterized by being applied to a coating apparatus including the film detection mechanism according to any one of claims 1 to 5, comprising:
The weight and the humidity of the membrane to be detected are obtained by using the membrane detection mechanism;
and adjusting the drying parameters of the coating device based on the weight and the humidity.
12. The film coating method according to claim 11, wherein the coating apparatus further comprises an appearance detecting mechanism and a table, and the step of adjusting a drying parameter of the coating apparatus based on the weight and the humidity comprises:
The appearance detection mechanism is utilized to obtain the appearance information of the membrane to be detected on the workbench;
Acquiring the dry film weight of the film to be tested based on the weight and the humidity;
determining whether the to-be-detected membrane has defects or not based on the appearance information;
If the defect exists, acquiring a defect type based on the defect, and adjusting the drying parameter of the coating device based on the defect type and the dry film weight.
13. The film coating method according to claim 12, wherein the step of adjusting a drying parameter of the coating apparatus based on the defect type and the dry film weight comprises:
and controlling the coating device to stop working in response to the defect type being any one or any combination of scratch, bubble and coating leakage.
14. The film coating method according to claim 12, wherein the step of adjusting a drying parameter of the coating apparatus based on the defect type and the dry film weight comprises:
And in response to the defect type being that the film width is larger or smaller, adjusting the width of the film to be detected so that the film width reaches the preset film width under the condition that the difference between the dry film weight and the preset target weight is kept smaller than the preset difference.
15. The film coating method of claim 12, wherein the coating apparatus further comprises an oven mechanism, the drying parameters include a temperature and an air frequency of the oven mechanism, the step of adjusting the drying parameters of the coating apparatus based on the defect type and the dry film weight comprises:
And in response to the defect type being cracking and/or wrinkling, reducing the temperature and/or wind frequency of the oven mechanism while maintaining the difference between the dry film weight and the preset target weight to be less than a preset difference.
16. The film coating method of claim 12, wherein the coating apparatus further comprises a coating mechanism, the drying parameter further comprises a pump speed of the coating mechanism, and the step of adjusting the drying parameter of the coating apparatus based on the defect type and the dry film weight comprises:
and adjusting the pump speed to enable the dry film weight to reach the preset target weight in response to the difference value between the dry film weight and the preset target weight being greater than or equal to the preset difference value.
17. The film coating method according to claim 12, further comprising:
And controlling the coating device to stop working and carrying out alarm prompt in response to the fact that the number of times of adjusting the drying parameters of the coating device is larger than a preset number of times threshold and the membrane to be tested still has defects.
CN202410488102.6A 2024-04-23 2024-04-23 Diaphragm detection mechanism, coating device and diaphragm coating method Active CN118089906B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112082901A (en) * 2019-06-13 2020-12-15 宁德时代新能源科技股份有限公司 Surface density measurement compensation system
US20220293904A1 (en) * 2021-03-12 2022-09-15 Prime Planet Energy & Solutions, Inc. Method of producing electrode for secondary battery, electrode, and secondary battery including electrode
CN115753496A (en) * 2022-11-08 2023-03-07 东莞市爱康智能技术有限公司 Online surface density measuring instrument for battery pole piece
CN218655193U (en) * 2022-11-04 2023-03-21 蔚来汽车科技(安徽)有限公司 Coating device for battery diaphragm
CN117139104A (en) * 2023-11-01 2023-12-01 江苏时代新能源科技有限公司 Drying system, battery production equipment and pole piece coating and drying method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112082901A (en) * 2019-06-13 2020-12-15 宁德时代新能源科技股份有限公司 Surface density measurement compensation system
US20220293904A1 (en) * 2021-03-12 2022-09-15 Prime Planet Energy & Solutions, Inc. Method of producing electrode for secondary battery, electrode, and secondary battery including electrode
CN218655193U (en) * 2022-11-04 2023-03-21 蔚来汽车科技(安徽)有限公司 Coating device for battery diaphragm
CN115753496A (en) * 2022-11-08 2023-03-07 东莞市爱康智能技术有限公司 Online surface density measuring instrument for battery pole piece
CN117139104A (en) * 2023-11-01 2023-12-01 江苏时代新能源科技有限公司 Drying system, battery production equipment and pole piece coating and drying method

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