Film coating system

Abstract

The utility model provides a film coating system. The film coating system comprises a thickness measuring module and a film coating machine, the thickness measuring module is arranged at a battery cell feeding end of the coating machine; the thickness measuring module is suitable for measuring flatness data of the battery cell; and the coating machine is suitable for coating the battery cell according to the flatness data. The thickness measuring module is arranged at the battery cell feeding end of the film coating machine to detect the flatness data of the battery cell, so that the convexity of the passing roller can be adjusted in time according to the flatness data of the battery cell, the reject ratio of a film is reduced, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of lithium batteries, in particular to a coating system. Background Art

[0002] At present, in the production process of blue film wrapping of battery cells in the lithium battery industry, the film wrapping yield is affected by the convexity of the battery cell materials, resulting in a low film wrapping yield, which increases production costs. For pits ≤ 1mm, the yield is 99.5%; for pits 1mm ≤ ≤ 1.5mm, the yield is 99%; for pits ≥ 1.5mm, the yield is lower than 99%. At the same time, defective batteries need to be manually torn off, resulting in a waste of manpower and increased production costs. For batteries with pits ≥ 1.5mm, the film wrapping roller needs to be replaced for rework, affecting the production cycle.

[0003] The above problems need to be solved urgently. Utility Model Content

[0004] The utility model aims to provide a film encapsulation system.

[0005] In order to solve the above technical problems, the utility model provides a film coating system, comprising:

[0006] Thickness measurement module and coating machine;

[0007] The thickness measuring module is arranged at the battery cell feeding end of the coating machine;

[0008] The thickness measurement module is suitable for measuring the flatness data of the battery cell;

[0009] The coating machine is suitable for coating the battery core according to the flatness data.

[0010] Furthermore, the coating machine comprises: a control module, a convexity adjustment module and an airbag type pressing roller;

[0011] The thickness measuring module is electrically connected to the control module;

[0012] The control module is electrically connected to the convexity adjustment module;

[0013] The control module is suitable for receiving the flatness data measured by the thickness measuring module and adjusting the convexity of the airbag pressure roller through the convexity adjustment module.

[0014] Furthermore, the convexity adjustment module includes a compressed air source and a three-position three-way solenoid valve;

[0015] The compressed air source, the three-position three-way solenoid valve and the airbag of the airbag type pressing roller are connected to form a convexity adjustment loop.

[0016] Furthermore, the three-position three-way solenoid valve is electrically connected to the control module.

[0017] Furthermore, the convexity adjustment circuit includes an air intake path and an air discharge path.

[0018] Furthermore, the air inlet route is formed by sequentially connecting a compressed air source, a three-dimensional three-way solenoid valve and an airbag type pressure roller;

[0019] The air outlet of the compressed air source, the first air inlet of the three-position three-way solenoid valve, the first air outlet of the three-position three-way solenoid valve and the airbag air inlet of the airbag type pressure roller are connected in sequence.

[0020] Furthermore, the deflation route is formed by sequentially connecting an airbag type pressure roller and a three-dimensional three-way solenoid valve;

[0021] The airbag outlet of the airbag type pressure roller, the second air inlet of the three-position three-way solenoid valve and the second air outlet of the three-position three-way solenoid valve are connected in sequence.

[0022] Furthermore, an airbag pressure sensor is arranged inside the airbag pressure roller.

[0023] Furthermore, the control module includes a PLC logic control unit and a host computer;

[0024] The PLC logic control unit is communicatively connected with the host computer;

[0025] The thickness measuring module is electrically connected to the PLC logic control unit;

[0026] The thickness measuring module is communicatively connected with the host computer.

[0027] Furthermore, the thickness measuring module is an optical distance sensor.

[0028] The beneficial effect of the utility model is that the utility model provides a coating system, in which a thickness measuring module is arranged at the battery cell feeding end of the coating machine to detect the flatness data of the battery cell, so that the convexity of the roller can be adjusted in time according to the battery cell flatness data, thereby reducing the film defect rate, improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] Figure 1 The invention is a membrane encapsulation system provided by an embodiment of the invention. DETAILED DESCRIPTION

[0031] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0032] Example 1

[0033] See also Figure 1 This embodiment provides a coating system, including: a thickness measuring module and a coating machine; the thickness measuring module is arranged at the cell feeding end of the coating machine; the thickness measuring module is suitable for measuring the flatness data of the cell; the coating machine is suitable for coating the cell according to the flatness data. The thickness measuring module is arranged at the cell feeding end of the coating machine to detect the flatness data of the cell, so that the convexity of the roller can be adjusted in time according to the cell flatness data, the defective rate of the film can be reduced, the production efficiency can be improved and the production cost can be reduced.

[0034] Wherein, the thickness measuring module is an optical distance sensor.

[0035] The composition of the coating machine is described below.

[0036] In this embodiment, the coating machine includes: a control module, a convexity adjustment module and an airbag pressure roller; the thickness measuring module is electrically connected to the control module; the control module is electrically connected to the convexity adjustment module; the control module is suitable for receiving the flatness data measured by the thickness measuring module and adjusting the convexity of the airbag pressure roller through the convexity adjustment module.

[0037] When the control module receives the flatness data sent by the thickness measuring module, it queries the corresponding data table to obtain the corresponding convexity data, and then controls the convexity adjustment module to adjust the airbag convexity of the airbag type pressure roller.

[0038] Specifically, the convexity adjustment module includes a compressed air source and a three-position three-way solenoid valve; the compressed air source, the three-position three-way solenoid valve and the airbag of the airbag type pressure roller are connected to form a convexity adjustment loop. The three-position three-way solenoid valve is provided with a double coil, and the airbag of the airbag type pressure roller is controlled to be inflated or deflated by controlling the on and off of the double coil.

[0039] In order to achieve inflation or deflation of the airbag, in this embodiment, the convexity adjustment circuit includes an air intake path and an air deflation path.

[0040] The air inlet route is formed by the compressed air source, the three-dimensional three-way solenoid valve and the airbag roller being connected in sequence; the air outlet of the compressed air source, the first air inlet of the three-position three-way solenoid valve, the first air outlet of the three-position three-way solenoid valve and the airbag air inlet of the airbag roller are connected in sequence. The deflation route is formed by the airbag roller and the three-dimensional three-way solenoid valve being connected in sequence; the airbag outlet of the airbag roller, the second air inlet of the three-position three-way solenoid valve and the second air outlet of the three-position three-way solenoid valve are connected in sequence.

[0041] In order to monitor the convexity of the airbag type pressure roller, the present application provides an airbag pressure sensor in the airbag type pressure roller. The airbag pressure sensor is used to monitor the convexity of the airbag, thereby accurately adjusting the convexity of the airbag type pressure roller.

[0042] In order to control the on-off of the double coils in the three-position three-way solenoid valve, in this embodiment, the three-position three-way solenoid valve is electrically connected to the control module.

[0043] The composition of the control module is described below.

[0044] In this embodiment, the control module includes a PLC logic control unit and a host computer; the PLC logic control unit is communicatively connected to the host computer; the thickness measuring module is electrically connected to the PLC logic control unit; and the thickness measuring module is communicatively connected to the host computer.

[0045] The airbag pressure sensor is electrically connected to the PLC logic control unit.

[0046] The control process is as follows: after the battery cell enters the scanning area of ​​the coating machine, the battery cell barcode is sent to the host computer. After the host computer obtains the battery cell barcode, the thickness measurement signal below is sent to the PLC logic control unit. The PLC logic control unit controls the thickness measurement module to measure the thickness, obtain the flatness data of the battery cell, and send it to the host computer. The host computer queries the corresponding data table, obtains the corresponding convexity data, and sends a signal to the PLC logic control unit. The PLC logic control unit sends an inflation signal or a deflation signal according to the convexity data to control the three-position three-way solenoid valve to complete the convexity adjustment of the airbag pressure roller.

[0047] In summary, the utility model provides a coating system, in which a thickness measuring module is arranged at the battery cell feeding end of the coating machine to detect the flatness data of the battery cell, so that the convexity of the roller can be adjusted in time according to the battery cell flatness data, thereby reducing the film defect rate, improving production efficiency and reducing production costs.

[0048] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0049] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0052] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0053] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0054] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A coating system, characterized in that: include: Thickness measurement module and coating machine; The thickness measuring module is arranged at the battery cell feeding end of the coating machine; The thickness measurement module is suitable for measuring the flatness data of the battery cell; The coating machine is suitable for coating the battery core according to the flatness data.

2. The encapsulation system according to claim 1, characterized in that The coating machine comprises: a control module, a convexity adjustment module and an airbag type pressing roller; The thickness measuring module is electrically connected to the control module; The control module is electrically connected to the convexity adjustment module; The control module is suitable for receiving the flatness data measured by the thickness measuring module and adjusting the convexity of the airbag pressure roller through the convexity adjustment module.

3. The encapsulation system according to claim 2, characterized in that The convexity adjustment module includes a compressed air source and a three-position three-way solenoid valve; The compressed air source, the three-position three-way solenoid valve and the airbag of the airbag type pressing roller are connected to form a convexity adjustment loop.

4. The encapsulation system according to claim 3, characterized in that The three-position three-way solenoid valve is electrically connected to the control module.

5. The coating system according to claim 3, characterized in that: The convexity adjustment circuit includes an air intake path and an air discharge path.

6. The encapsulation system according to claim 5, characterized in that The air inlet route is formed by sequentially connecting a compressed air source, a three-dimensional three-way solenoid valve and an airbag type pressure roller; The air outlet of the compressed air source, the first air inlet of the three-position three-way solenoid valve, the first air outlet of the three-position three-way solenoid valve and the airbag air inlet of the airbag type pressure roller are connected in sequence.

7. The coating system according to claim 5, characterized in that The deflation route is formed by sequentially connecting an airbag type pressure roller and a three-dimensional three-way electromagnetic valve; The airbag outlet of the airbag type pressure roller, the second air inlet of the three-position three-way solenoid valve and the second air outlet of the three-position three-way solenoid valve are connected in sequence.

8. The encapsulation system according to claim 5, characterized in that An airbag pressure sensor is arranged inside the airbag type pressure roller.

9. The encapsulation system according to claim 2, characterized in that: The control module includes a PLC logic control unit and a host computer; The PLC logic control unit is communicatively connected with the host computer; The thickness measuring module is electrically connected to the PLC logic control unit; The thickness measuring module is communicatively connected with the host computer.

10. The coating system according to claim 1, characterized in that: The thickness measuring module is an optical distance sensor.

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