Control method of film coating equipment, film coating equipment and computer storage medium

Abstract

The invention discloses a control method of film coating equipment, the film coating equipment and a computer storage medium, the film coating equipment comprises a film guide mechanism and a detection mechanism, the film guide mechanism is used for providing a film, the detection mechanism is used for detecting a film layer structure of the film provided by the film guide mechanism, and the detection mechanism is used for detecting the film layer structure of the film provided by the film guide mechanism. The control method comprises the following steps: when it is detected that the film layer structure is a non-single-layer film, determining a target cell pre-packaged by the non-single-layer film in a film coating process; and after coating of the target battery cell is completed, waste discharge treatment is performed on the target battery cell. By adopting the control method, the film coating speed and the film coating quality of the equipment can be improved, the manual intervention cost is reduced, and the waste of a film coating material is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of film coating, and in particular to a control method of film coating equipment, film coating equipment and computer storage medium. Background Art

[0002] In the related art, during the cell wrapping process, since the length of a roll of film is limited and a certain length is inside the wrapping machine, in order to avoid a large amount of waste due to replacing a new film, it is necessary to splice the tail end of the film that is about to be used up with the new film. However, manual film replacement and splicing will cause wrinkles, bubbles and other problems between the two layers of film, which will have a certain impact on the quality of subsequent cell wrapping with joints. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a control method for a coating device, which can improve the coating speed and coating quality of the device, reduce the cost of manual intervention, and reduce the waste of coating materials.

[0004] A second object of the present invention is to provide a film coating device.

[0005] A third object of the present invention is to provide a computer storage medium.

[0006] A fourth object of the present invention is to provide a coating device.

[0007] In order to solve the above problems, a first aspect of an embodiment of the present invention provides a control method for a coating device, wherein the coating device includes a film guiding mechanism and a detection mechanism, wherein the film guiding mechanism is used to provide a film, and the detection mechanism is used to detect a film layer structure of the film provided by the film guiding mechanism, and the control method includes: when it is detected that the film layer structure is a non-single-layer film, determining a target battery cell pre-packaged with the non-single-layer film during the coating process; and after the target battery cell is coated, performing waste treatment on the target battery cell.

[0008] According to the control method of the coating equipment of the embodiment of the present invention, in order to avoid the problem of affecting the quality of the battery cells due to the use of spliced ​​film to package the battery cells, during the coating process, the film layer structure of the film provided by the film guiding mechanism is detected by a detection mechanism to determine whether the film provided by the film guiding mechanism is a single layer, and when it is detected that the film layer structure is a non-single-layer film, the target battery cells packaged by the non-single-layer film are automatically discharged for waste treatment, thereby eliminating the need for subsequent testing of the target battery cells and not affecting the progress of the next coating. This not only ensures the coating speed of the equipment, but also improves the coating quality, reduces the cost of manual intervention, and reduces the waste of coating materials.

[0009] In some embodiments, determining the target battery cell to be pre-packaged with the non-single-layer film during the coating process includes: determining the remaining coating length required for the battery cell to be currently coated; obtaining the position interval length from the detection position of the detection mechanism to the film guiding position of the film guiding mechanism, and the membrane joint length of the non-single-layer film; determining the target battery cell to be pre-packaged with the non-single-layer film during the coating process based on the remaining coating length, the position interval length and the membrane joint length.

[0010] In some embodiments, the coating device includes a feeding mechanism, and determining the remaining coating length required for the current battery cell to be coated includes: obtaining the total coating length required for each battery cell; when the current battery cell to be coated is pushed by the feeding mechanism for coating, obtaining the current actual position of the feeding mechanism and the target feeding position of the feeding mechanism; obtaining the coated length of the current battery cell to be coated according to the current actual position and the target feeding position; and determining the remaining coating length according to the total coating length and the coated length.

[0011] In some embodiments, the coating device includes a material receiving mechanism, which determines the remaining coating length required for the current battery cell to be coated, including: when the current battery cell to be coated is pushed for coating by the material receiving mechanism, obtaining the current movement position of the material receiving mechanism and the target material pulling position of the material receiving mechanism; determining the remaining coating length according to the current movement position and the target material pulling position.

[0012] In some embodiments, the target battery cell for the non-single-layer film pre-package during the coating process is determined based on the remaining coating length, the position interval length and the membrane joint length, including: if the remaining coating length is less than the position interval length, the target battery cell is determined to be the next battery cell to be coated of the current battery cell to be coated; if the remaining coating length is greater than the position interval length, and the remaining coating length is less than the sum of the position interval length and the membrane joint length, the target battery cell is determined to be the current battery cell to be coated and the next battery cell to be coated of the current battery cell to be coated; if the remaining coating length is greater than the sum of the lengths, the target battery cell is determined to be the current battery cell to be coated.

[0013] In some embodiments, the detection mechanism includes a first detection member and a second detection member, the film guiding mechanism includes an upper film mechanism and a lower film mechanism, the first detection member is used to detect the film layer structure of the film provided by the upper film mechanism, and the second detection member is used to detect the film layer structure of the film provided by the lower film mechanism, and the method also includes: if the first detection member detects that the film layer structure is a non-single-layer film, then the detection position of the detection mechanism is determined to be the detection position of the first detection member; if the second detection member detects that the film layer structure is a non-single-layer film, then the detection position of the detection mechanism is determined to be the detection position of the second detection member.

[0014] The second aspect of the present invention provides a coating device, comprising: at least one processor; a memory communicatively connected to at least one of the processors; wherein the memory stores a computer program executable by at least one of the processors, and when at least one of the processors executes the computer program, the control method of the coating device described in the above embodiment is implemented.

[0015] According to the coating device of the embodiment of the present invention, the coating speed and coating quality of the device can be improved, the cost of manual intervention can be reduced, and the waste of coating materials can be reduced.

[0016] A third aspect of the present invention provides a computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the control method of the coating device described in the above embodiment.

[0017] A fourth aspect of the present invention provides a coating device, comprising: a film guiding mechanism, which is used to provide a film; a detection mechanism, which is used to detect the film layer structure of the film provided by the film guiding mechanism; and a controller, which is connected to the detection mechanism and is used to execute the control method of the coating device described in the above embodiment.

[0018] According to the coating device of the embodiment of the present invention, the coating speed and coating quality of the device can be improved, the cost of manual intervention can be reduced, and the waste of coating materials can be reduced.

[0019] In some embodiments, the detection mechanism includes a first detection member and a second detection member, and the film wrapping equipment also includes: a film guiding mechanism, the film guiding mechanism includes an upper film mechanism and a lower film mechanism; wherein, the first detection member is used to detect the film layer structure of the film provided by the upper film mechanism, and the second detection member is used to detect the film layer structure of the film provided by the lower film mechanism.

[0020] In some embodiments, the detection mechanism is an ultrasonic detection mechanism, and the ultrasonic detection mechanism includes: a transmitter and a receiver, and the transmitter and the receiver are respectively arranged on two sides of the film provided by the film guiding mechanism.

[0021] In some embodiments, the film coating device also includes: a feeding mechanism and a receiving mechanism; a display device, wherein the display device is connected to the controller and is used to display the position of the non-single-layer film, the current movement position of the feeding mechanism, and the current movement position of the receiving mechanism.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a flow chart of a control method of a coating device according to an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of a membrane connector according to an embodiment of the present invention;

[0026] Figure 3 is a schematic structural diagram of a detection mechanism according to an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of the installation of a detection mechanism according to an embodiment of the present invention;

[0028] Figure 5 is a schematic diagram of a cell coating process according to an embodiment of the present invention;

[0029] Figure 6 is a structural block diagram of a coating device according to an embodiment of the present invention;

[0030] Figure 7 is a structural block diagram of a coating device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0032] Since the total length of a roll of film is limited, when each roll of film is used up, the blue film is removed from the reel to the battery cell film attachment mechanism, which will cause waste of the removed film. From the perspective of the mechanical structure of the film coating equipment, the length of the wasted film is 3 to 5 meters or longer. Under normal circumstances, the wasted film can still wrap more than 5 cells. In particular, the blue film needs to be replaced many times a day, and the accumulated waste will be greater. In addition, after the film is removed, a new blue film needs to be pulled into the machine, which will cause too long downtime, reduce production time, and reduce output.

[0033] In order to solve the above problems, an object of the present invention is to provide a control method for coating equipment, which can improve the coating speed and coating quality of the equipment, reduce the cost of manual intervention, and reduce the waste of coating materials.

[0034] Reference below Figure 1 The control method of the film coating device according to the embodiment of the present invention is described with reference to Figure 1 As shown, the control method at least includes step S1-step S2.

[0035] Step S1, when it is detected that the film layer structure is a non-single-layer film, determining a target battery cell pre-packaged with a non-single-layer film during a coating process.

[0036] Step S2, after the target battery cell is coated, the target battery cell is subjected to waste treatment.

[0037] The film coating equipment includes a film guiding mechanism and a detection mechanism. The film guiding mechanism is used to provide the film, and the detection mechanism is used to detect the film layer structure of the film provided by the film guiding mechanism. The specific working principle is that when the battery cell is moved under the film guiding mechanism, the film guiding mechanism sticks the film to the surface of the battery cell, and then the roller rolls on the surface of the battery cell to make the film close to the surface of the battery cell. The servo motor pushes / pull the battery cell to move and drive the film to coat the film on the surface of the battery cell. The film guiding mechanism can provide the film to the battery cell in the form of clamping or adsorption, which is not limited.

[0038] Specifically, since the total length of a roll of film is limited, from the perspective of the mechanical structure of the film coating equipment, a considerable portion of each roll of film cannot be used when it is used up, resulting in a waste of raw materials. In order to reduce the waste of film materials, the film will be spliced ​​and a membrane joint will be generated during the film replacement process, such as Figure 2 As shown, however, if the membrane joint is wrapped on the battery cell, it will affect the insulation and other performances of the battery. In order to solve the above problems, in the present application, the membrane is spliced ​​after the membrane is used up, and the membrane layer structure of the membrane provided by the membrane guiding mechanism is detected by a detection mechanism to determine whether the membrane provided by the membrane guiding mechanism is a single layer. When it is detected that the membrane layer structure is a non-single-layer membrane, it means that the membrane joint is detected, and then the target battery cell packaged by the non-single-layer membrane is automatically discharged directly. This avoids the waste of coating materials and can effectively exclude the battery cell with the membrane joint, so that there is no need to conduct subsequent testing on the target battery cell, avoiding the impact on the subsequent process and the performance of the entire battery pack. Moreover, after the target battery cell is coated, it is discharged, which will not affect the progress of the next coating, thereby ensuring the coating speed of the equipment, improving the coating quality, and reducing the cost of manual intervention.

[0039] Among them, for the waste discharge treatment of the target battery cell, the specific process is that after the controller determines the target battery cell with a membrane connector, it will be displayed on the touch screen, and an NG signal will be provided for the target battery cell with a membrane connector, and it will be transmitted to the subsequent stations of the machine in sequence, so that the target battery cell will not be subjected to subsequent testing after the film is wrapped, and will be directly placed in the waste discharge station to distinguish it from normal batteries; the controller will also give a signal to the next machine at the waste discharge station to remove the target battery cell from the waste and take it out to the waste discharge rack. When the waste discharge rack is full, a prompt will be actively issued to remind the relevant personnel, and then the film of the target battery cell will be manually peeled off and placed at the loading station of the coated battery cell to re-perform the coating and other processes.

[0040] In an embodiment, the detection mechanism can detect the film structure in the form of ultrasound. Specifically, refer to Figure 3 and Figure 4 As shown, the detection mechanism is an ultrasonic detection mechanism, which includes a transmitter and a receiver, and the transmitter and the receiver are respectively installed on both sides of the membrane, the distance between the transmitter and the receiver is fixed, and the membrane is placed between the transmitter and the receiver and has a certain inclination angle. The ultrasonic detection mechanism has multiple switch output states. When the ultrasonic wave penetrates a single-layer membrane and when the ultrasonic wave penetrates a non-single-layer membrane such as a double membrane, the ultrasonic signal received by the receiver is different. Based on this, when detecting the membrane layer structure, if the ultrasonic signal received by the receiver is consistent with the ultrasonic signal when the ultrasonic wave penetrates the non-single-layer membrane, the membrane layer structure is determined to be a non-single-layer membrane, and the corresponding switch output state is output to the controller of the film coating device such as a PLC controller. After receiving the corresponding switch output state, the controller triggers a rising edge pulse to determine the target battery cell pre-packaged by the non-single-layer membrane, and discharges the target battery cell containing the non-single-layer membrane; if the ultrasonic signal received by the receiver is consistent with the ultrasonic signal when the ultrasonic wave penetrates a single-layer membrane, the membrane layer structure is determined to be a single-layer membrane, and the corresponding switch output state is output to the controller of the film coating device such as a PLC controller to inform the controller to perform normal film coating control.

[0041] In some embodiments, in order to improve the coating efficiency and quality, the blue film and its protective film are separated in advance at other workstations, and a certain length of blue film is cached by a blue film cache component to avoid the problem of the film falling off from the surface of the battery cell due to too little tension or the film breaking due to too much tension during the coating process.

[0042] According to the control method of the coating equipment of the embodiment of the present invention, in order to avoid the problem of affecting the quality of the battery cells due to the use of spliced ​​film to package the battery cells, during the coating process, the film layer structure of the film provided by the film guiding mechanism is detected by a detection mechanism to determine whether the film provided by the film guiding mechanism is a single layer, and when it is detected that the film layer structure is a non-single-layer film, the target battery cells packaged by the non-single-layer film are automatically discharged for waste treatment, thereby eliminating the need for subsequent testing of the target battery cells and not affecting the progress of the next coating. This not only ensures the coating speed of the equipment, but also improves the coating quality, reduces the cost of manual intervention, and reduces the waste of coating materials.

[0043] In some embodiments, since the battery cells are pulled and pasted while being wrapped, and the specific length of a roll of film is unknown, the reeling and unwinding part only detects the diameter of the film roll, which is related to the thickness of the blue film. It is impossible to calculate how long the blue film to be used is, nor is it possible to predict in advance where the membrane joint will appear. Therefore, it is necessary to judge the membrane joint during the wrapping process, specifically including: determining the remaining wrapping length required for the battery cell to be wrapped; obtaining the position interval length from the detection position of the detection mechanism to the film guiding position of the film guiding mechanism, and the membrane joint length of the non-single-layer film; determining the target battery cell to be pre-packaged with a non-single-layer film during the wrapping process according to the remaining wrapping length, the position interval length and the membrane joint length. Therefore, by calculating the length of the battery cell that needs to be coated, that is, the remaining coating length, and comparing it with the position interval length from the detection position of the detection mechanism to the film guiding position of the film guiding mechanism and the length of the membrane joint, it is possible to determine in advance which battery cell the membrane joint will appear on, and discharge it accordingly, i.e., the target battery cell, without the need for subsequent testing of the target battery cell, and without affecting the progress of the next coating, which not only ensures the coating speed of the equipment, but also improves the coating quality and reduces the cost of manual intervention.

[0044] In some embodiments, reference Figure 4 As shown, the detection mechanism includes a first detection member and a second detection member, and the film guiding mechanism includes an upper membrane mechanism and a lower membrane mechanism. The first detection member is used to detect the membrane layer structure of the membrane provided by the upper membrane mechanism, and the second detection member is used to detect the membrane layer structure of the membrane provided by the lower membrane mechanism. Based on this, the different positions of the membrane joint will affect the length of the position interval. Therefore, when the controller receives the output signal of the non-single-layer membrane, it will trigger the judgment of the position of the membrane joint, that is, judge whether the membrane joint appears in the upper membrane mechanism or the lower membrane mechanism. Specifically, if the first detection member detects that the membrane layer structure is a non-single-layer membrane, the detection position of the detection mechanism is determined to be the detection position of the first detection member, that is, the output signal of the non-single-layer membrane is provided by the first detection member, and the membrane joint appears in the upper membrane mechanism; if the second detection member detects that the membrane layer structure is a non-single-layer membrane, the detection position of the detection mechanism is determined to be the detection position of the second detection member, that is, the output signal of the non-single-layer membrane is provided by the second detection member, and the membrane joint appears in the lower membrane mechanism.

[0045] In some embodiments, the coating device includes a feeding mechanism to determine the remaining coating length required for the current battery cell to be coated, including: obtaining the total coating length required for each battery cell; when the current battery cell to be coated is pushed by the feeding mechanism for coating, obtaining the current actual position of the feeding mechanism and the target feeding position of the feeding mechanism; obtaining the coated length of the current battery cell to be coated according to the current actual position and the target feeding position; and determining the remaining coating length according to the total coating length and the coated length.

[0046] In some embodiments, the coating device includes a material receiving mechanism to determine the remaining coating length required for the current battery cell to be coated, including: when the current battery cell to be coated is pushed for coating by the material receiving mechanism, obtaining the current movement position of the material receiving mechanism and the target material pulling position of the material receiving mechanism; determining the remaining coating length based on the current movement position and the target material pulling position.

[0047] Specifically, the total length of the film required for each battery cell can be calculated based on the relative distance between the feeding mechanism and the receiving mechanism at different positions. Figure 5 As shown, the coating length S = (A2-A1) + (B1-B2), where A1 is the initial position of the battery cell entering the feeding mechanism, A2 is the target feeding position of the feeding mechanism each time the feeding mechanism feeds, B1 is the initial position of the battery cell entering the receiving mechanism, B2 is the target pulling position of the receiving mechanism each time the material is pulled, and A1<A2,B1> B2. Furthermore, based on the total length of film required for each battery cell, and according to the current moving position of the feeding mechanism or the pulling mechanism, the remaining film length required for the current battery cell to be coated is calculated in real time. That is, when the current battery cell to be coated is pushed for coating by the feeding mechanism, the coated length at this time is S1, that is, the distance the feeding mechanism pushes the battery cell forward, and the remaining coating length L required for the battery cell to be coated is L=S-S1=S-(A-A1), where A is the current actual position of the feeding mechanism; and when the current battery cell to be coated is pushed for coating by the receiving mechanism, the remaining coating length L required for coating is L=B-B2, where B is the current moving position of the receiving mechanism.

[0048] In some embodiments, when the film structure is detected to be a non-single-layer film, the detection mechanism will output the corresponding switch output state to the controller, and the controller will trigger a rising edge pulse, and determine the target cell pre-packaged with a non-single-layer film during the film coating process based on the remaining film coating length, the position interval length, and the film joint length, that is, determine which cell the film joint will appear on. Specifically, the length and value N of the position interval length M and the film joint length L1 are calculated, that is, N = M + L1; refer to Figure 4 and Figure 5As shown, if the remaining coating length L is less than the position interval length, the target cell is determined to be the next cell to be coated of the current cell to be coated; if the remaining coating length is greater than the position interval length, and the remaining coating length is less than the length sum value N, the target cell is determined to be the current cell to be coated and the next cell to be coated of the current cell to be coated; if the remaining coating length is greater than the length sum value N, the target cell is determined to be the current cell to be coated.

[0049] It should be noted that, if the detection position of the detection mechanism is the detection position of the first detection member, the position interval length is L2; ​​if the detection position of the detection mechanism is the detection position of the second detection member, the position interval length is L3.

[0050] In addition, it is understandable that due to the different mechanical structures of the film coating equipment, the length of the position interval between the detection position of the detection mechanism and the film guiding position of the film guiding mechanism may be different, but the judgment method is consistent with the principle of the above method.

[0051] A second embodiment of the present invention provides a coating device, such as Figure 6 As shown, the encapsulating device 10 includes at least one processor 11 and a memory 12 communicatively connected to the at least one processor 11 .

[0052] The memory 12 stores a computer program that can be executed by at least one processor 11 , and the at least one processor 11 implements the control method of the coating device of the above embodiment when executing the computer program.

[0053] According to the coating device 10 of the embodiment of the present invention, the coating speed and coating quality of the device can be improved, the cost of manual intervention can be reduced, and the waste of coating materials can be reduced.

[0054] A third aspect of the present invention provides a computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the control method of the coating device of the above embodiment.

[0055] A fourth aspect of the present invention provides a coating device, such as Figure 7 As shown, the film coating device 10 includes a detection mechanism 1 , a controller 2 and a film guiding mechanism 3 .

[0056] The film guiding mechanism 3 is used to provide the film; the detection mechanism 1 is used to detect the film layer structure of the film provided by the film guiding mechanism 3; the controller 2 is connected to the detection mechanism 1 and is used to execute the control method of the film coating device of the above embodiment.

[0057] According to the coating device 10 of the embodiment of the present invention, the coating speed and coating quality of the device can be improved, the cost of manual intervention can be reduced, and the waste of coating materials can be reduced.

[0058] In some embodiments, Figure 4 As shown, the detection mechanism 1 includes a first detection member 13 and a second detection member 14 , and the film guiding mechanism 3 includes an upper film mechanism 31 and a lower film mechanism 32 .

[0059] The first detection member 13 is used to detect the film layer structure of the film provided by the upper film mechanism 31 , and the second detection member 14 is used to detect the film layer structure of the film provided by the lower film mechanism 32 .

[0060] In some embodiments, Figure 3 and Figure 4 As shown, the detection mechanism 1 is an ultrasonic detection mechanism, which includes a transmitter 15 and a receiver 16 , and the transmitter 15 and the receiver 16 are respectively arranged on both sides of the film provided by the film guiding mechanism 3 .

[0061] Exemplarily, the ultrasonic detection mechanism has multiple switch output states. The ultrasonic detection mechanism can be set to have an output signal when a single-layer film is detected, and no signal output when a non-single-layer film is detected. The signal of the ultrasonic detection mechanism is fed back to the controller in real time. The controller determines whether the film layer structure is a non-single-layer film based on the output signal of the ultrasonic detection mechanism, and calculates the target battery cell pre-packaged with the non-single-layer film, that is, determines the position of the waste battery cell.

[0062] In some embodiments, Figure 7 As shown, the film wrapping device 10 also includes a feeding mechanism 4 , a receiving mechanism 5 and a display device 6 .

[0063] The display device 6 is connected to the controller 2 and is used to display the position of the non-single-layer film, the current movement position of the feeding mechanism 4 and the current movement position of the receiving mechanism 5 .

[0064] Specifically, the display device 6, such as a touch screen, can communicate with the controller 2 via EtherNet / IP, and the target value of each servo axis at each working position, i.e., the target feeding position of the feeding mechanism 4 and the target pulling position of the receiving mechanism 5, is set on the display device 6, and is fed back to the controller 2, and the approximate position of the membrane joint detected by the controller 2, i.e., the target battery cell, is displayed on the display device 6.

[0065] In addition, the servo motors in the coating device 10, such as the feeding mechanism 4 and the receiving mechanism 5, can communicate with the controller 2 via EtherCat, and the controller 2 controls the movement of each servo motor to make it reach the corresponding position and complete the instructions given by the controller 2 to the servo motor.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0067] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A control method for a coating device, characterized in that: The film coating device comprises a film guiding mechanism and a detection mechanism, wherein the film guiding mechanism is used to provide a film, and the detection mechanism is used to detect the film layer structure of the film provided by the film guiding mechanism. The control method comprises: When it is detected that the film layer structure is a non-single-layer film, determining a target battery cell pre-packaged with the non-single-layer film during the film coating process; After the target battery cell is coated, the target battery cell is subjected to waste treatment.

2. The control method of the coating equipment according to claim 1, characterized in that: Determine the target battery cells for non-single-layer film pre-packaging during the coating process, including: Determine the remaining coating length required for the current cell to be coated, the distance between the detection position of the detection mechanism and the film guiding position of the film guiding mechanism, and the membrane joint length of the non-single-layer membrane; The target battery cell for pre-packaging with the non-single-layer film during the film coating process is determined according to the remaining film coating length, the position interval length and the film joint length.

3. The control method of the coating equipment according to claim 2, characterized in that: The coating device includes a feeding mechanism, which determines the remaining coating length required for the current battery cell to be coated, including: Get the total length of the film required for each cell; When the battery cell to be coated is pushed by the feeding mechanism to be coated, obtaining the current actual position of the feeding mechanism and the target feeding position of the feeding mechanism; Acquire the coated length of the current battery cell to be coated according to the current actual position and the target feeding position; The remaining envelope length is determined according to the total envelope length and the enveloped length.

4. The control method of the coating equipment according to claim 2, characterized in that: The coating device includes a material receiving mechanism, which determines the remaining coating length required for the current battery cell to be coated, including: When the current cell to be coated is pushed by the material receiving mechanism to be coated, the current moving position of the material receiving mechanism and the target material pulling position of the material receiving mechanism are obtained; The remaining film coating length is determined according to the current moving position and the target material pulling position.

5. The control method of the coating equipment according to any one of claims 2 to 4, characterized in that: Determining the target battery cell pre-packaged with the non-single-layer film during the film coating process according to the remaining film coating length, the position interval length, and the film joint length includes: If the remaining coating length is less than the position interval length, determining that the target cell is the next cell to be coated of the current cell to be coated; If the remaining coating length is greater than the position interval length, and the remaining coating length is less than the sum of the position interval length and the membrane joint length, the target cell is determined to be the current cell to be coated and the next cell to be coated of the current cell to be coated; If the remaining coating length is greater than the length sum value, the target cell is determined to be the current cell to be coated.

6. The control method of the coating equipment according to claim 2, characterized in that: The detection mechanism includes a first detection member and a second detection member, the film guiding mechanism includes an upper film mechanism and a lower film mechanism, the first detection member is used to detect the film layer structure of the film provided by the upper film mechanism, and the second detection member is used to detect the film layer structure of the film provided by the lower film mechanism, and the method further includes: If the first detection element detects that the film layer structure is not a single-layer film, determining the detection position of the detection mechanism to be the detection position of the first detection element; If the second detection component detects that the film layer structure is a non-single-layer film, the detection position of the detection mechanism is determined to be the detection position of the second detection component.

7. A coating device, characterized in that: include: at least one processor; a memory communicatively coupled to at least one of the processors; Wherein, the memory stores a computer program executable by at least one of the processors, and when at least one of the processors executes the computer program, the control method of the coating device according to any one of claims 1 to 6 is implemented.

8. A computer storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the coating device according to any one of claims 1 to 6 is implemented.

9. A coating device, characterized in that: include: A film guiding mechanism, the film guiding mechanism is used to provide a film; A detection mechanism, the detection mechanism is used to detect the film layer structure of the film provided by the film guiding mechanism; A controller, wherein the controller is connected to the detection mechanism and is used to execute the control method of the coating device according to any one of claims 1 to 6.

10. The coating device according to claim 9, characterized in that: The detection mechanism includes a first detection member and a second detection member, and the film guiding mechanism includes an upper film mechanism and a lower film mechanism; Wherein, the first detection member is used to detect the film layer structure of the film provided by the upper film mechanism, and the second detection member is used to detect the film layer structure of the film provided by the lower film mechanism.

11. The coating device according to claim 9 or 10, characterized in that: The detection mechanism is an ultrasonic detection mechanism, and the ultrasonic detection mechanism includes: A transmitter and a receiver are respectively arranged on two sides of the film provided by the film guiding mechanism.

12. The coating device according to any one of claims 9 to 11, characterized in that: The coating device also includes: Feeding mechanism and receiving mechanism; A display device is connected to the controller and is used to display the position of the non-single-layer film, the current movement position of the feeding mechanism and the current movement position of the receiving mechanism.

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