Envelope shaping device and its method

Abstract

The present invention discloses a film covering and shaping device and a method thereof, relating to the technical field of battery processing equipment. The film covering and shaping device includes a frame, a first driver, a first shaping structure, a second driver, and a second shaping structure. The first driver drives the first shaping structure to move. Under the movement of the first shaping structure, the first shaping structure is configured to be a flat structure for smoothing and shaping the insulating film on the side of the battery. A second shaping structure matching the shape of the large surface of the battery is set, and the second driver drives the second shaping structure to move. The second shaping structure has a rolling channel configured to allow the battery to pass through, and the second shaping structure is configured to shape the insulating film on the large surface of the battery when the battery passes through the rolling channel. The technical solution provided by the present invention solves the problem that air bubbles on the insulating film on the side of the battery cannot be discharged in time, resulting in bubble wrinkles.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing equipment, and in particular to a film shaping device and a shaping method. Background Art

[0002] During the battery production process, an insulating film needs to be coated on the surface of the battery so that the insulating film wraps the surface of the battery to prevent damage to the internal pole pieces and prevent the pole pieces from overlapping with other metals and causing a short circuit.

[0003] In the related art, the same convex roller is usually used to shape the insulating film on the large surface and the side of the battery. Since the flatness of the side of the battery is greater than the flatness of the large surface of the battery, when the convex roller is used to shape the insulating film on the side of the battery, the bubbles cannot be discharged in time, resulting in the problem of bubble wrinkles. Summary of the invention

[0004] In view of the above problems, the present application provides a film shaping device and method thereof, which aims to solve the problem that bubbles in the insulating film on the side of the battery cannot be discharged in time, resulting in bubble wrinkles.

[0005] The present application provides a film shaping device, including a frame, a first driver, a first shaping structure, a second driver and a second shaping structure; the first driver is arranged on the frame; the first shaping structure is arranged on the frame and is transmission-connected to the first driver, the first driver drives the first shaping structure to move, under the movement of the first shaping structure, the first shaping structure is configured as a flat structure, which is used to flatten and shape the insulating film on the side of the battery; the second driver is arranged on the frame; a second shaping structure matching the shape of the large surface of the battery is arranged according to the shape of the large surface of the battery, the second shaping structure is arranged on the frame, and is spaced apart from the first shaping structure, and is transmission-connected to the second driver, the second driver drives the second shaping structure to move, the second shaping structure has a rolling channel, the rolling channel is configured for the battery to pass through, and the second shaping structure is configured to shape the insulating film on the large surface of the battery when the battery passes through the rolling channel.

[0006] In the technical solution of the embodiment of the present application, the technical solution of the present invention uses a first shaping structure and a second shaping structure to shape the insulating film on the side surface of the battery and the insulating film on the large surface of the battery respectively. Among them, under the movement of the first shaping structure, the insulating film on the side surface of the battery is scraped by the first shaping structure. Since the first shaping structure is a flat structure, it can smooth and shape the insulating film on the side surface of the battery, so that each position of the insulating film on the side surface of the battery can be shaped in place; the second shaping structure has a rolling channel. Since the large surface of the battery is an uneven surface, the second shaping structure matching the shape of the large surface of the battery can be set accordingly. During the process of the battery passing through the rolling channel, the insulating film on the large surface of the battery can be smoothed and shaped by the second shaping structure. Therefore, when shaping the side surface and the large surface of the battery, the first shaping structure and the second shaping structure can be used to shape the insulating film on the side surface of the battery and the insulating film on the large surface of the battery respectively. Instead of using a convex roller to shape the insulating film on the side surface of the battery with a relatively large flatness, a relatively flat first shaping structure is used to smooth and shape the insulating film on the side surface of the battery, so as to effectively solve the problem that the air bubbles in the insulating film on the side surface of the battery cannot be discharged in time, resulting in bubble wrinkles.

[0007] In some embodiments, the first shaping structure is a flat roller or a rubber-coated block; the outer peripheral side of the flat roller has a shaping contact line; the rubber-coated block has a shaping contact surface, and multiple shaping contact lines form the shaping contact surface; the shaping contact line is configured to be parallel to the side surface of the battery. Under the movement of the first shaping structure, the shaping contact line is configured to shape the insulating film on the side surface of the battery. With such a design, when the first shaping structure is a flat roller, the shaping contact line on the outer peripheral side of the flat roller can contact the insulating film on the side surface of the battery, and then repeatedly scrape the insulating film on the side surface of the battery under the movement of the flat roller. Moreover, the flat roller can rotate while repeatedly scraping, so as to fully discharge the air bubbles in the insulating film on the side surface of the battery in time, and at the same time reduce the wear of the insulating film. When the first shaping structure is a rubber-coated block, the shaping contact surface on the side of the rubber-coated block can contact the insulating film on the side surface of the battery, and then repeatedly scrape the insulating film on the side surface of the battery under the movement of the rubber-coated block. Since the rubber-coated block uses a shaping contact surface with a relatively large area to scrape the insulating film on the side surface of the battery, it can improve the efficiency and effect of discharging the air bubbles in the insulating film, and the rubber-coated block has elasticity, which can also reduce the wear of the insulating film.

[0008] In some embodiments, the second shaping structure includes a first pressing roller and a second pressing roller which are oppositely arranged. A rolling channel is formed between the first pressing roller and the second pressing roller. The first pressing roller and the second pressing roller are configured to shape the insulating film on the large surface of the battery when the battery passes through the rolling channel. With such a design, since the large surface of the battery is an uneven surface, the first pressing roller and the second pressing roller can be set to match the shape of the large surface of the battery. During the process of the battery passing through the rolling channel between the first pressing roller and the second pressing roller, the insulating film on the large surface of the battery can be smoothed and shaped by the first pressing roller and the second pressing roller.

[0009] In some embodiments, the first pressing roller is a convex roller or a concave roller, and the second pressing roller is a convex roller or a concave roller. With such a design, since the large surface of the battery is an uneven surface, a convex roller or a concave roller that matches the shape of the large surface of the battery can be selected as the first pressing roller and the second pressing roller to improve the shaping accuracy of the insulating film on the large surface of the battery.

[0010] In some embodiments, the first driver and the second driver respectively drive the first shaping structure and the second shaping structure to move up and down. With such a design, the first shaping structure and the second shaping structure are installed on the frame in a liftable manner. Thus, when shaping the insulating film on the side surface of the battery and the insulating film on the large surface of the battery, the first shaping structure and the second shaping structure only need to move in the vertical direction, which can reduce the occupied space in the horizontal direction.

[0011] In some embodiments, the frame includes a frame body, a first lifting plate, and a second lifting plate. The first lifting plate is arranged on the frame body. The first driver drives the first lifting plate to move up and down. The first shaping structure and the first pressing roller are connected to the first lifting plate. The second lifting plate is arranged on the frame body and is located below the first lifting plate. The second driver drives the second lifting plate to move up and down. The second pressing roller is connected to the second lifting plate. With such a design, by connecting the first shaping structure and the first pressing roller together to the first lifting plate, the first lifting plate can drive the first shaping structure and the first pressing roller of the second shaping structure to move up and down simultaneously, without the need to use two lifting structures to separately install the first shaping structure and the first pressing roller, which can simplify the structural design.

[0012] In some embodiments, an avoidance channel opposite to the rolling channel is formed between the first lifting plate and the second lifting plate. The frame body is provided with an avoidance opening opposite to the avoidance channel. With such a design, after the battery passes through the rolling channel, it can then pass through the avoidance channel and the avoidance opening in sequence, which can prevent the first lifting plate, the second lifting plate, and the frame body from blocking the battery, enabling the insulating film on the entire large surface of the battery to be rolled in place by the first pressing roller and the second pressing roller of the second shaping structure, and discharging the bubbles in the insulating film on the large surface of the battery in a timely manner, thereby improving the shaping effect of the insulating film on the large surface of the battery.

[0013] In some embodiments, the second shaping structure includes a first pressing roller and a second pressing roller which are oppositely arranged, and a roller pressing channel is formed between the first pressing roller and the second pressing roller; the first shaping structure is located on the side of the first pressing roller away from the second pressing roller. Such a design can arrange the first shaping structure, the first pressing roller and the second pressing roller in sequence from top to bottom, and can fully reduce the occupied space of the overall film wrapping and shaping device in the horizontal direction.

[0014] In some embodiments, the frame further includes a first connecting plate and a second connecting plate; the first shaping structure and the first pressing roller are connected to the first lifting plate through the first connecting plate; the second pressing roller is connected to the second lifting plate through the second connecting plate. Such a design can install the first shaping structure and the first pressing roller on the first connecting plate, and then install the first connecting plate on the first lifting plate, so as to facilitate the installation of the first shaping structure and the first pressing roller; similarly, the second pressing roller can be installed on the second connecting plate, and then the second connecting plate can be installed on the second lifting plate, so as to facilitate the installation of the second pressing roller.

[0015] In some embodiments, the frame further includes a first pressure sensor and a second pressure sensor; the first connecting plate is connected to the first lifting plate through the first pressure sensor, and the first pressure sensor is located on the side of the first pressing roller away from the second pressing roller; the second connecting plate is connected to the second lifting plate through the second pressure sensor, and the second pressure sensor is located on the side of the second pressing roller away from the first pressing roller. Such a design is to connect the first connecting plate to the first lifting plate by using the first pressure sensor, so as to obtain the first pressure value of the first pressing roller on the battery through the first pressure sensor, and connect the second connecting plate to the second lifting plate by using the second pressure sensor, so as to obtain the second pressure value of the second pressing roller on the battery through the second pressure sensor; when the first pressure value and the second pressure value are greater than the preset pressure value, adjust the positions of the first pressing roller and / or the second pressing roller to increase the width of the roller pressing channel, so that the first pressure value and the second pressure value are within the preset pressure value range; when the first pressure value and the second pressure value are less than the preset pressure value, adjust the positions of the first pressing roller and / or the second pressing roller to narrow the width of the roller pressing channel, so that the first pressure value and the second pressure value are within the preset pressure value range. Thus, the pressure of the first pressing roller and the second pressing roller on the battery can be monitored in real time to quickly find a better shaping position and pressure.

[0016] In some embodiments, the frame is provided with a guide rail extending in the vertical direction; the first lifting plate is provided with a first slider, and the first slider is slidably matched with the guide rail; the second lifting plate is provided with a second slider, and the second slider is slidably matched with the guide rail. Such a design can improve the lifting stability of the first lifting plate under the sliding cooperation of the first slider and the guide rail, and further improve the lifting stability of the first shaping structure and the first pressing roller. Similarly, the lifting stability of the second lifting plate can be improved under the sliding cooperation of the second slider and the guide rail, and further improve the lifting stability of the second pressing roller.

[0017] In some embodiments, a first temperature-changing structure is provided inside the first shaping structure; a second temperature-changing structure is provided inside the second shaping structure. With such a design, by providing the first temperature-changing structure inside the first shaping structure, when the first shaping structure shapes the insulating film on the side of the battery, the first temperature-changing structure can be used to heat or cool the insulating film, so as to increase or decrease the viscosity value of the insulating film to within a preset viscosity value, thereby improving the sticking effect between the insulating film and the side of the battery. Similarly, by providing the second temperature-changing structure inside the second shaping structure, when the second shaping structure shapes the insulating film on the large surface of the battery, the second temperature-changing structure can be used to heat or cool the insulating film, so as to increase or decrease the viscosity value of the insulating film to within a preset viscosity value, thereby improving the sticking effect between the insulating film and the large surface of the battery.

[0018] In some embodiments, the first temperature-changing structure is a heater or a cooler; and / or, the second temperature-changing structure is a heater or a cooler. With such a design, when using an insulating film with a viscosity value less than the preset viscosity value, the first temperature-changing structure and the second temperature-changing structure can be designed as heaters. When the first shaping structure shapes the insulating film on the side of the battery, the insulating film is heated by the first temperature-changing structure, so that the viscosity value of the insulating film is controlled within the preset viscosity value, and thus the sticking effect between the insulating film and the side of the battery can be improved; when the second shaping structure shapes the insulating film on the large surface of the battery, the insulating film is heated by the second temperature-changing structure, so that the viscosity value of the insulating film is controlled within the preset viscosity value, and thus the sticking effect between the insulating film and the large surface of the battery can be improved. When using an insulating film with a viscosity value greater than the preset viscosity value, the first temperature-changing structure and the second temperature-changing structure can be designed as coolers. When the first shaping structure shapes the insulating film on the side of the battery, the insulating film is cooled by the first temperature-changing structure, so that the viscosity value of the insulating film is controlled within the preset viscosity value, and thus the sticking effect between the insulating film and the side of the battery can be improved; when the second shaping structure shapes the insulating film on the large surface of the battery, the insulating film is cooled by the second temperature-changing structure, so that the viscosity value of the insulating film is controlled within the preset viscosity value, and thus the sticking effect between the insulating film and the large surface of the battery can be improved.

[0019] The present application also provides a film wrapping and shaping method, including the following steps:

[0020] Control the first shaping structure to face the side of the battery;

[0021] Make the first shaping structure scrape the insulating film on the side of the battery to shape the insulating film on the side of the battery;

[0022] Control the rolling channel of the second shaping structure to face the side of the battery;

[0023] When the battery passes through the rolling channel, control the second shaping structure to shape the insulating film on the large surface of the battery.

[0024] In such a design, first control the first shaping structure to move so that the first shaping structure moves to a position opposite to the side of the battery, and make the first shaping structure scrape the insulating film on the side of the battery to smooth and shape the insulating film on the side of the battery, so that each position of the insulating film on the side of the battery can be shaped in place; then control the second shaping structure to move so that the rolling channel of the second shaping structure is opposite to the side of the battery, and then control the battery to pass through the rolling channel to smooth and shape the insulating film on the large surface of the battery through the second shaping structure. Therefore, when shaping the side and the large surface of the battery, the first shaping structure and the second shaping structure can be used to shape the insulating film on the side and the large surface of the battery respectively. Instead of using a convex roller to shape the insulating film on the side of the battery with a relatively large flatness, a relatively flat first shaping structure is used to smooth and shape the insulating film on the side of the battery, thereby effectively solving the problem that the air bubbles in the insulating film on the side of the battery cannot be discharged in time and causing bubble wrinkles.

[0025] In some embodiments, when the battery passes through the rolling channel, controlling the second shaping structure to shape the insulating film on the large surface of the battery further includes:

[0026] Obtain the first pressure value of the first pressing roller of the second shaping structure on the battery, and obtain the second pressure value of the second pressing roller of the second shaping structure on the battery;

[0027] When the first pressure value and the second pressure value are within the preset pressure value range, control the battery to continue passing through the rolling channel;

[0028] When the first pressure value and the second pressure value are outside the preset pressure value range, control the battery to stop passing through the rolling channel.

[0029] In such a design, the first pressure value of the first pressing roller on the battery can be obtained, and the second pressure value of the second pressing roller on the battery can be obtained, and the first pressure value and the second pressure value are transmitted to the control end, and the control end judges whether the first pressure value and the second pressure value are within the preset pressure value range. When the first pressure value and the second pressure value are within the preset pressure value range, control the battery to continue passing through the rolling channel to continue shaping the insulating film on the large surface of the battery through the first pressing roller and the second pressing roller; when the first pressure value and the second pressure value are outside the preset pressure value range, control the battery to stop passing through the rolling channel, and then adjust the positions of the first pressing roller and the second pressing roller so that the battery can be controlled to continue passing through the rolling channel only when the first pressure value and the second pressure value are finally within the preset pressure value range. Thus, the pressure of the first pressing roller and the second pressing roller on the battery can be monitored in real time to quickly find a better shaping position and pressure.

[0030] In some embodiments, when the first pressure value and the second pressure value are outside the preset pressure value range, after controlling the battery to stop passing through the rolling channel, it further includes:

[0031] When the first pressure value and the second pressure value are greater than the preset pressure value, controlling the first pressure roller and the second pressure roller to move away from each other;

[0032] When the first pressure value and the second pressure value are less than the preset pressure value, controlling the first pressure roller and the second pressure roller to move closer to each other.

[0033] With such a design, when the obtained first pressure value and second pressure value are greater than the preset pressure value, the control end can control the first pressure roller and the second pressure roller to move away from each other to increase the width of the rolling channel, so that the first pressure value and the second pressure value are within the preset pressure value range; and when the obtained first pressure value and second pressure value are less than the preset pressure value, the first pressure roller and the second pressure roller can be controlled to move closer to each other to narrow the width of the rolling channel, so that the first pressure value and the second pressure value are within the preset pressure value range.

[0034] In some embodiments, when the first shaping structure scratches the insulating film on the side of the battery to shape the insulating film on the side of the battery, it further includes:

[0035] Obtaining the viscosity value of the insulating film;

[0036] When the viscosity value of the insulating film is less than the preset viscosity value, heating the insulating film on the side of the battery by using the first temperature-changing structure;

[0037] When the viscosity value of the insulating film is greater than the preset viscosity value, cooling the insulating film on the side of the battery by using the first temperature-changing structure.

[0038] With such a design, when using an insulating film with a viscosity value less than the preset viscosity value, the first temperature-changing structure can be designed as a heater. When the first shaping structure shapes the insulating film on the side of the battery, the insulating film is heated by the first temperature-changing structure to control the viscosity value of the insulating film within the preset viscosity value, thereby improving the adhesion effect between the insulating film and the side of the battery; and when using an insulating film with a viscosity value greater than the preset viscosity value, the first temperature-changing structure can be designed as a cooler. When the first shaping structure shapes the insulating film on the side of the battery, the insulating film is cooled by the first temperature-changing structure to control the viscosity value of the insulating film within the preset viscosity value, thereby improving the adhesion effect between the insulating film and the side of the battery.

[0039] In some embodiments, when the battery passes through the rolling channel, controlling the second shaping structure to shape the insulating film on the large surface of the battery, it further includes:

[0040] Obtaining the viscosity value of the insulating film;

[0041] Under the condition that the viscosity value of the insulating film is less than the preset viscosity value, the second variable temperature structure is used to heat the insulating film on the large surface of the battery;

[0042] Under the condition that the viscosity value of the insulating film is greater than the preset viscosity value, the second variable temperature structure is used to cool down the insulating film on the large surface of the battery.

[0043] With such a design, when using an insulating film with a viscosity value less than the preset viscosity value, the second variable temperature structure can be designed as a heater. When the first pressing roller and the second pressing roller of the second shaping structure shape the insulating film on the large surface of the battery, the insulating film is heated through the second variable temperature structure to control the viscosity value of the insulating film within the preset viscosity, thereby improving the sticking effect between the insulating film and the large surface of the battery; when using an insulating film with a viscosity value greater than the preset viscosity value, the second variable temperature structure can be designed as a cooler. When the first pressing roller and the second pressing roller of the second shaping structure shape the insulating film on the large surface of the battery, the insulating film is cooled down through the second variable temperature structure to control the viscosity value of the insulating film within the preset viscosity, thereby improving the sticking effect between the insulating film and the large surface of the battery.

[0044] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the other purposes, features and advantages of the present application more obvious and understandable, the following specifically illustrates the specific embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0046] Figure 1 It is a schematic structural diagram of an embodiment of the film wrapping and shaping device of the present application;

[0047] Figure 2 It is a schematic structural diagram of an embodiment of the film wrapping and shaping device of the present application when shaping the side surface of the battery;

[0048] Figure 3 It is a schematic structural diagram of an embodiment of the film wrapping and shaping device of the present application when shaping the large surface of the battery;

[0049] Figure 4 It is a rear view of an embodiment of the film wrapping and shaping device of the present application;

[0050] Figure 5It is a partial structural schematic diagram of an embodiment of the film coating shaping device of the present application;

[0051] Figure 6 It is a step flow chart of an embodiment of the film coating shaping method of the present application;

[0052] Figure 7 It is a step flow chart of an embodiment of the film coating shaping method of the present application;

[0053] Figure 8 It is a step flow chart of an embodiment of the film coating shaping method of the present application;

[0054] Figure 9 It is a step flow chart of an embodiment of the film coating shaping method of the present application.

[0055] Explanation of the reference numerals in the attached drawings:

[0056]

[0057] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0058] Next, embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0060] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, "a plurality" means more than two unless otherwise specifically defined.

[0061] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0062] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0063] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0064] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0065] During the battery production process, it is necessary to coat an insulating film on the surface of the battery to wrap the surface of the battery, prevent the internal electrode sheets from being damaged, and prevent the electrode sheets from being short-circuited due to being lapped with other metals.

[0066] In the related art, usually the same convex roller is used to shape the insulating film on the large surface and the side surface of the battery. Since the flatness of the side surface of the battery is greater than that of the large surface of the battery, when using the convex roller to shape the insulating film on the side surface of the battery, the air bubbles cannot be discharged in time, resulting in the problem of air bubble wrinkles.

[0067] Based on the above problems, the present invention proposes a film coating and shaping device 100, aiming to solve the problem that the air bubbles in the insulating film 300 on the side surface of the battery 200 cannot be discharged in time, resulting in air bubble wrinkles. The following will be described in detail with specific drawings and embodiments.

[0068] Please refer to Figures 1 to 3, in an embodiment of the present invention, the film wrapping and shaping device 100 includes a frame 10, a first driver 40, a first shaping structure 20, a second driver 50, and a second shaping structure 30; the first driver 40 is arranged on the frame 10; the first shaping structure 20 is arranged on the frame 10 and is drivingly connected to the first driver 40. The first driver 40 drives the first shaping structure 20 to move. Under the movement of the first shaping structure 20, the first shaping structure 20 is configured as a flat structure for smoothing and shaping the insulating film 300 on the side of the battery 200; the second driver 50 is arranged on the frame 10; the second shaping structure 30 is set to match the shape of the large surface of the battery 200. The second shaping structure 30 is arranged on the frame 10, is spaced from the first shaping structure 20, and is drivingly connected to the second driver 50. The second driver 50 drives the second shaping structure 30 to move. The second shaping structure 30 has a rolling channel 30a which is configured to allow the battery 200 to pass through. The second shaping structure 30 is configured to shape the insulating film 300 on the large surface of the battery 200 when the battery 200 passes through the rolling channel 30a.

[0069] In this embodiment, the frame 10 refers to a structure for installing and fixing the first shaping structure 20 and the second shaping structure 30 to support the first shaping structure 20 and the second shaping structure 30.

[0070] In practical applications, the film wrapping and shaping device 100 may include a pushing mechanism for driving the battery 200 to pass through the rolling channel 30a. Alternatively, the pushing mechanism may also be a structural member of an external device, as long as it can drive the battery 200 to pass through the rolling channel 30a smoothly.

[0071] The first shaping structure 20 refers to a flat structure for smoothing and shaping the insulating film 300 on the side of the battery 200. The first shaping structure 20 can be lifted or lowered relative to the frame 10, or can move horizontally or rotate relative to the frame 10, as long as the first shaping structure 20 scrapes the side of the battery 200 under movement. The first shaping structure 20 can be a flat roller, or can be structures such as a rubber-coated block, a scraper, a blade, etc.

[0072] The second shaping structure 30 refers to a structure for smoothing and shaping the insulating film 300 on the large surface of the battery 200. The second shaping structure 30 can be lifted and lowered relative to the frame 10 or horizontally moved relative to the frame 10, as long as it can move to a position where the rolling channel 30a faces the side of the battery 200, so that the large surface of the battery 200 can be shaped by the second shaping structure 30 during the process of the battery 200 passing through the rolling channel 30a. The second shaping structure 30 can use the first pressing roller 31 and the second pressing roller 32 to smooth and shape the insulating film 300 on the large surface of the battery 200. The first pressing roller 31 and the second pressing roller 32 can be convex rollers, or can be rollers with shapes such as concave rollers, flat rollers, concave-convex rollers, etc., and are specifically set according to the shape of the large surface of the battery 200.

[0073] The first driver 40 and the second driver 50 are respectively structures for driving the first shaping structure 20 and the second shaping structure 30 to move. Optionally, the first driver 40 and the second driver 50 can be cylinders. Of course, in other embodiments, the first driver 40 and the second driver 50 can also be a structure of a motor cooperating with a rack and pinion.

[0074] In summary, in the technical solution of the embodiment of the present application, the technical solution of the present invention uses the first shaping structure 20 and the second shaping structure 30 to respectively shape the insulating film 300 on the side of the battery 200 and the insulating film 300 on the large surface of the battery 200. Among them, under the movement of the first shaping structure 20, the insulating film 300 on the side of the battery 200 is scraped by the first shaping structure 20. Since the first shaping structure 20 is a flat structure, it can smooth and shape the insulating film 300 on the side of the battery 200, so that each position of the insulating film 300 on the side of the battery 200 can be shaped in place; the second shaping structure 30 has a rolling channel 30a. Since the large surface of the battery 200 is an uneven surface, the second shaping structure 30 can be set to match the shape of the large surface of the battery 200. During the process of the battery 200 passing through the rolling channel 30a, the insulating film 300 on the large surface of the battery 200 can be smoothed and shaped by the second shaping structure 30. Therefore, when shaping the side of the battery 200 and the large surface of the battery 200, the first shaping structure 20 and the second shaping structure 30 can be used to respectively shape the insulating film 300 on the side of the battery 200 and the insulating film 300 on the large surface of the battery 200. Instead of using a convex roller to shape the insulating film 300 on the side of the battery 200 with a relatively large flatness, a relatively flat first shaping structure 20 is used to smooth and shape the insulating film 300 on the side of the battery 200, thereby effectively solving the problem that the air bubbles on the insulating film 300 on the side of the battery 200 cannot be discharged in time and bubble wrinkles appear.

[0075] Please refer to Figure 1 、 Figure 2, in an embodiment of the present invention, the first shaping structure 20 is a flat roller or a rubber-coated block; the outer peripheral side of the flat roller has a shaping contact line 21; the rubber-coated block has a shaping contact surface, and multiple shaping contact lines 21 form the shaping contact surface; the shaping contact line 21 is configured to be parallel to the side surface of the battery 200, and under the movement of the first shaping structure 20, the shaping contact line 21 is configured to shape the insulating film on the side surface of the battery 200.

[0076] The shaping contact line 21 refers to the line used to contact the side surface of the battery 200, and the shaping contact line 21 can be a straight line or a curve.

[0077] With such a design, when the first shaping structure 20 is a flat roller, the shaping contact line 21 on the outer peripheral side of the flat roller can contact the insulating film 300 on the side surface of the battery 200, and then repeatedly scrape the insulating film 300 on the side surface of the battery 200 under the movement of the flat roller. Moreover, the flat roller can rotate while repeatedly scraping, so that the bubbles in the insulating film 300 on the side surface of the battery 200 can be fully discharged in time, and at the same time, the wear on the insulating film 300 can be reduced. When the first shaping structure 20 is a rubber-coated block, the shaping contact surface on the side of the rubber-coated block can contact the insulating film 300 on the side surface of the battery 200, and then repeatedly scrape the insulating film 300 on the side surface of the battery 200 under the movement of the rubber-coated block. Since the rubber-coated block uses a shaping contact surface with a larger area to scrape the insulating film 300 on the side surface of the battery 200, the efficiency and effect of discharging the bubbles in the insulating film 300 can be improved, and the rubber-coated block has elasticity, which can also reduce the wear on the insulating film 300.

[0078] It can be understood that the rubber-coated block is an elastic block structure. Specifically, the rubber-coated block can be in the shape of a cuboid, a cylinder, a prism, etc., as long as it has a shaping contact surface parallel to the side surface of the battery 200.

[0079] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the second shaping structure 30 includes a first pressing roller 31 and a second pressing roller 32 arranged oppositely. A roller pressing channel 30a is formed between the first pressing roller 31 and the second pressing roller 32, and the first pressing roller 31 and the second pressing roller 32 are configured to shape the insulating film 300 on the large surface of the battery 200 when the battery 200 passes through the roller pressing channel 30a.

[0080] The first pressing roller 31 and the second pressing roller 32 refer to two rotating rollers arranged parallel to the axis, so as to form a roller pressing channel 30a for the battery 200 to pass through between the first pressing roller 31 and the second pressing roller 32. The size of the first pressing roller 31 and the second pressing roller 32 can be the same or different.

[0081] With such a design, since the large surface of the battery 200 is an uneven surface, the first pressing roller 31 and the second pressing roller 32 that match the shape of the large surface of the battery 200 can be set accordingly. During the process of the battery 200 passing through the rolling channel 30a between the first pressing roller 31 and the second pressing roller 32, the insulating film 300 on the large surface of the battery 200 can be smoothed and shaped by the first pressing roller 31 and the second pressing roller 32.

[0082] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the first pressing roller 31 is a convex roller or a concave roller, and the second pressing roller 32 is a convex roller or a concave roller.

[0083] A convex roller refers to a roller body with a surface part protruding outward relative to a flat roller; a concave roller refers to a roller body with a surface part recessed inward relative to a flat roller.

[0084] With such a design, since the large surface of the battery 200 is an uneven surface, a convex roller or a concave roller that matches the shape of the large surface of the battery 200 can be selected as the first pressing roller 31 and the second pressing roller 32, so as to improve the shaping accuracy of the insulating film 300 on the large surface of the battery 200.

[0085] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the first driver 40 and the second driver 50 respectively drive the first shaping structure 20 and the second shaping structure 30 to move up and down.

[0086] With such a design, by using the first driver 40 and the second driver 50 to respectively drive the first shaping structure 20 and the second shaping structure 30 to move up and down, when shaping the insulating film 300 on the side surface of the battery 200 and the insulating film 300 on the large surface of the battery 200, the first shaping structure 20 and the second shaping structure 30 only need to move in the vertical direction, which can reduce the occupied space in the horizontal direction.

[0087] In actual application, the first shaping structure 20 and the second shaping structure 30 can be arranged vertically or horizontally.

[0088] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the frame 10 includes a frame body 11, a first lifting plate 12 and a second lifting plate 13; the first lifting plate 12 is arranged on the frame body 11, the first driver 40 drives the first lifting plate 12 to move up and down, and the first shaping structure 20 and the first pressing roller 31 are connected to the first lifting plate 12; the second lifting plate 13 is arranged on the frame body 11 and is located below the first lifting plate 12, the second driver 50 drives the second lifting plate 13 to move up and down, and the second pressing roller 32 is connected to the second lifting plate 13.

[0089] In this embodiment, by connecting the first shaping structure 20 and the first pressing roller 31 to the first lifting plate 12, they can be lifted and lowered along with the first lifting plate 12, and connecting the second pressing roller 32 to the second lifting plate 13, which can be lifted and lowered along with the second lifting plate 13. When shaping the side of the battery 200, the first lifting plate 12 drives the first shaping structure 20 and the first pressing roller 31 of the second shaping structure 30 to rise until the first shaping structure 20 faces the side of the battery 200. Then, the first lifting plate 12 drives the first shaping structure 20 and the first pressing roller 31 to reciprocate up and down, so that the shaping contact line 21 of the first shaping structure 20 repeatedly scrapes the insulating film 300 on the side of the battery 200 to smooth and shape the insulating film 300 on the side of the battery 200. Additionally, before the first lifting plate 12 drives the first shaping structure 20 and the first pressing roller 31 to reciprocate up and down, the second lifting plate 13 drives the second pressing roller 32 of the second shaping structure 30 to descend a certain distance to prevent the second pressing roller 32 from colliding with the first pressing roller 31. When shaping the large surface of the battery 200, the first lifting plate 12 drives the first shaping structure 20 and the first pressing roller 31 to descend until the first pressing roller 31 is located above the side of the battery 200, and the second lifting plate 13 drives the second pressing roller 32 to rise until the second pressing roller 32 is located below the side of the battery 200, so that the rolling channel 30a faces the side of the battery 200. At this time, during the process of the battery 200 passing through the rolling channel 30a, the insulating film 300 on the large surface of the battery 200 can be smoothed and shaped by the first pressing roller 31 and the second pressing roller 32.

[0090] With such a design, by connecting the first shaping structure 20 and the first pressing roller 31 together to the first lifting plate 12, the first lifting plate 12 can drive the first shaping structure 20 and the first pressing roller 31 of the second shaping structure 30 to rise and fall simultaneously, eliminating the need to use two lifting structures to separately install the first shaping structure 20 and the first pressing roller 31, which can simplify the structural design.

[0091] In practical applications, the first shaping structure 20 and the first pressing roller 31 can be directly connected to the first lifting plate 12, or indirectly connected to the first lifting plate 12 through other structures. Similarly, the second pressing roller 32 can be directly connected to the second lifting plate 13, or indirectly connected to the second lifting plate 13 through other structures.

[0092] Please refer to Figure 4 , in an embodiment of the present invention, an avoidance channel 10a opposite to the rolling channel 30a is formed between the first lifting plate 12 and the second lifting plate 13, and the frame 11 is provided with an avoidance opening 10b opposite to the avoidance channel 10a.

[0093] With such a design, after the battery 200 passes through the rolling channel 30a, it can then pass through the avoidance channel 10a and the avoidance opening 10b in sequence, which can avoid the first lifting plate 12, the second lifting plate 13, and the frame body 11 from blocking the battery 200, enabling the insulating film 300 on the entire large surface of the battery 200 to be fully rolled by the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30, and discharging the bubbles in the insulating film 300 on the large surface of the battery 200 in a timely manner, thereby improving the shaping effect on the insulating film 300 on the large surface of the battery 200.

[0094] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the second shaping structure 30 includes a first pressing roller 31 and a second pressing roller 32 arranged oppositely, and a rolling channel 30a is formed between the first pressing roller 31 and the second pressing roller 32; the first shaping structure 20 is located on the side of the first pressing roller 31 away from the second pressing roller 32.

[0095] With such a design, the first shaping structure 20, the first pressing roller 31, and the second pressing roller 32 can be arranged in sequence from top to bottom, which can fully reduce the occupied space of the overall film wrapping and shaping device 100 in the horizontal direction.

[0096] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the frame 10 further includes a first connecting plate 14 and a second connecting plate 15; the first shaping structure 20 and the first pressing roller 31 are connected to the first lifting plate 12 through the first connecting plate 14; the second pressing roller 32 is connected to the second lifting plate 13 through the second connecting plate 15.

[0097] With such a design, the first shaping structure 20 and the first pressing roller 31 can be installed on the first connecting plate 14, and then the first connecting plate 14 can be installed on the first lifting plate 12 to facilitate the installation of the first shaping structure 20 and the first pressing roller 31; similarly, the second pressing roller 32 can be installed on the second connecting plate 15, and then the second connecting plate 15 can be installed on the second lifting plate 13 to facilitate the installation of the second pressing roller 32.

[0098] Optionally, when the first shaping structure 20 is a flat roller, the first connecting plate 14 is provided with a first shaft hole and a second shaft hole, and both ends of the flat roller are respectively inserted through the first shaft hole and the second shaft hole; the first connecting plate 14 is further provided with a third shaft hole and a fourth shaft hole, and both ends of the first pressing roller 31 are respectively inserted through the third shaft hole and the fourth shaft hole. The second connecting plate 15 is provided with a fifth shaft hole and a sixth shaft hole, and both ends of the second pressing roller 32 are respectively inserted through the fifth shaft hole and the sixth shaft hole.

[0099] Please refer to Figures 1 to 3, in an embodiment of the present invention, the frame 10 further includes a first pressure sensor 16 and a second pressure sensor 17; the first connecting plate 14 is connected to the first lifting plate 12 through the first pressure sensor 16, and the first pressure sensor 16 is located on the side of the first pressing roller 31 away from the second pressing roller 32; the second connecting plate 15 is connected to the second lifting plate 13 through the second pressure sensor 17, and the second pressure sensor 17 is located on the side of the second pressing roller 32 away from the first pressing roller 31.

[0100] In this embodiment, since there will be thickness errors in the incoming battery 200 during the production process, and when the batteries 200 with different thicknesses pass through the rolling channel 30a, the pressures of the first pressing roller 31 and the second pressing roller 32 on the battery 200 are different. If the pressures of the first pressing roller 31 and the second pressing roller 32 on the battery 200 are too large or too small, it will affect the shaping accuracy of the large-area insulating film 300 of the battery 200.

[0101] With such a design, the first connecting plate 14 is connected to the first lifting plate 12 by adopting the first pressure sensor 16, so as to obtain the first pressure value of the first pressing roller 31 on the battery 200 through the first pressure sensor 16, and the second connecting plate 15 is connected to the second lifting plate 13 by adopting the second pressure sensor 17, so as to obtain the second pressure value of the second pressing roller 32 on the battery 200 through the second pressure sensor 17; when the first pressure value and the second pressure value are greater than the preset pressure value, the positions of the first pressing roller 31 and / or the second pressing roller 32 are adjusted to increase the width of the rolling channel 30a, so that the first pressure value and the second pressure value are within the preset pressure value range; when the first pressure value and the second pressure value are less than the preset pressure value, the positions of the first pressing roller 31 and / or the second pressing roller 32 are adjusted to reduce the width of the rolling channel 30a, so that the first pressure value and the second pressure value are within the preset pressure value range. Thus, the pressures of the first pressing roller 31 and the second pressing roller 32 on the battery 200 can be monitored in real time to quickly find a better shaping position and pressure.

[0102] In addition, when the first pressure value and the second pressure value are greater than the preset pressure value, the first driver 40 can be controlled to drive the first pressing roller 31 to move away from the second pressing roller 32, and / or, the second driver 50 can be controlled to drive the second pressing roller 32 to move away from the first pressing roller 31, so as to increase the width of the rolling channel 30a, so that the first pressure value and the second pressure value are within the preset pressure value range; when the first pressure value and the second pressure value are less than the preset pressure value, the first driver 40 can be controlled to drive the first pressing roller 31 to move towards the second pressing roller 32, and / or, the second driver 50 can be controlled to drive the second pressing roller 32 to move towards the first pressing roller 31, so as to reduce the width of the rolling channel 30a, so that the first pressure value and the second pressure value are within the preset pressure value range.

[0103] Please refer to Figure 2 、Figure 3 , in an embodiment of the present invention, the frame 10 is provided with a guide rail 111 extending in the vertical direction; the first lifting plate 12 is provided with a first slider 121, and the first slider 121 is slidably engaged with the guide rail 111; the second lifting plate 13 is provided with a second slider 131, and the second slider 131 is slidably engaged with the guide rail 111.

[0104] Such a design can improve the lifting stability of the first lifting plate 12 under the sliding cooperation between the first slider 121 and the guide rail 111, and further improve the lifting stability of the first shaping structure 20 and the first pressing roller 31. Similarly, the lifting stability of the second lifting plate 13 can be improved under the sliding cooperation between the second slider 131 and the guide rail 111, and further improve the lifting stability of the second pressing roller 32.

[0105] Please refer to Figure 5 , in an embodiment of the present invention, a first temperature-changing structure 22 is provided inside the first shaping structure 20; a second temperature-changing structure 33 is provided inside the second shaping structure 30.

[0106] In this embodiment, since the viscosity value of the insulating film 300 is too large or too small, it will affect the film wrapping effect on the battery 200.

[0107] Such a design, by providing a first temperature-changing structure 22 inside the first shaping structure 20, when the first shaping structure 20 shapes the insulating film 300 on the side of the battery 200, the first temperature-changing structure 22 can be used to heat or cool the insulating film 300 to increase or decrease the viscosity value of the insulating film 300 to within a preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the side of the battery 200. Similarly, by providing a second temperature-changing structure 33 inside the second shaping structure 30, when the second shaping structure 30 shapes the insulating film 300 on the large surface of the battery 200, the second temperature-changing structure 33 can be used to heat or cool the insulating film 300 to increase or decrease the viscosity value of the insulating film 300 to within a preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the large surface of the battery 200.

[0108] Optionally, the first temperature-changing structure 22 is embedded in the first shaping structure 20, which can improve the installation reliability of the first temperature-changing structure 22. Similarly, the second temperature-changing structure 33 is embedded in the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30, which can improve the installation reliability of the second temperature-changing structure 33.

[0109] Please refer to Figure 5 , in an embodiment of the present invention, the first temperature-changing structure 22 is a heater or a cooler; and / or, the second temperature-changing structure 33 is a heater or a cooler.

[0110] In such a design, when using an insulating film 300 with a viscosity value less than the preset viscosity value, the first temperature-changing structure 22 and the second temperature-changing structure 33 can be designed as heaters. When the first shaping structure 20 shapes the insulating film 300 on the side of the battery 200, the insulating film 300 is heated through the first temperature-changing structure 22 to control the viscosity value of the insulating film 300 within the preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the side of the battery 200. When the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30 shape the insulating film 300 on the large surface of the battery 200, the insulating film 300 is heated through the second temperature-changing structure 33 to control the viscosity value of the insulating film 300 within the preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the large surface of the battery 200.

[0111] When using an insulating film 300 with a viscosity value greater than the preset viscosity value, the first temperature-changing structure 22 and the second temperature-changing structure 33 can be designed as coolers. When the first shaping structure 20 shapes the insulating film 300 on the side of the battery 200, the insulating film 300 is cooled through the first temperature-changing structure 22 to control the viscosity value of the insulating film 300 within the preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the side of the battery 200. When the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30 shape the insulating film 300 on the large surface of the battery 200, the insulating film 300 is cooled through the second temperature-changing structure 33 to control the viscosity value of the insulating film 300 within the preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the large surface of the battery 200.

[0112] Optionally, the heater can be a heating pipe; the cooler can be a cooling water channel.

[0113] Please refer to Figure 6 , the present invention also provides a film wrapping and shaping method, including the following steps:

[0114] S10. Control the first shaping structure 20 to face the side of the battery 200; specifically, the first driver 40 can be controlled to drive the first shaping structure 20 to move.

[0115] S20. Make the first shaping structure 20 scrape the insulating film 300 on the side of the battery 200 to shape the insulating film 300 on the side of the battery 200; specifically, the shaping contact line 21 of the first shaping structure 20 can be made to repeatedly scrape the insulating film 300 on the side of the battery 200 for shaping.

[0116] S30. Control the rolling channel 30a of the second shaping structure 30 to face the side of the battery 200. Specifically, the first driver 40 can be controlled to drive the first shaping structure 20 and the second driver 50 to drive the second shaping structure 30 to move, so that the rolling channel 30a of the second shaping structure 30 faces the side of the battery 200.

[0117] S40. When the battery 200 passes through the rolling channel 30a, control the second shaping structure 30 to shape the insulating film 300 on the large surface of the battery 200. Specifically, the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30 can be controlled to shape the insulating film 300 on the large surface of the battery 200.

[0118] With such a design, first control the movement of the first shaping structure 20 so that the first shaping structure 20 moves to a position facing the side of the battery 200, and the first shaping structure 20 scratches the insulating film 300 on the side of the battery 200 to smooth and shape the insulating film 300 on the side of the battery 200, so that each position of the insulating film 300 on the side of the battery 200 can be shaped in place. Then control the movement of the second shaping structure 30 so that the rolling channel 30a of the second shaping structure 30 faces the side of the battery 200, and then control the battery 200 to pass through the rolling channel 30a, so as to smooth and shape the insulating film 300 on the large surface of the battery 200 through the second shaping structure 30. Therefore, when shaping the side and the large surface of the battery 200, the first shaping structure 20 and the second shaping structure 30 can be used to shape the insulating film 300 on the side of the battery 200 and the insulating film 300 on the large surface of the battery 200 respectively. Instead of using a convex roller to shape the insulating film 300 on the side of the battery 200 with a relatively large flatness, the relatively flat first shaping structure 20 is used to smooth and shape the insulating film 300 on the side of the battery 200, so as to effectively solve the problem that the air bubbles on the insulating film 300 on the side of the battery 200 cannot be discharged in time and bubble wrinkles appear.

[0119] Optionally, the first driver 40 can be used to automatically control the movement of the first shaping structure 20 and the first pressing roller 31, and the second driver 50 can be used to automatically control the movement of the second pressing roller 32.

[0120] Please refer to Figure 7 , in an embodiment of the present invention, when the battery 200 passes through the rolling channel 30a, controlling the second shaping structure 30 to shape the insulating film 300 on the large surface of the battery 200 further includes:

[0121] S41. Obtain the first pressure value of the first pressure roller 31 of the second shaping structure 30 on the battery 200, and obtain the second pressure value of the second pressure roller 32 of the second shaping structure 30 on the battery 200. Specifically, the first pressure value of the first pressure roller 31 on the battery 200 can be obtained through the first pressure sensor 16, and the second pressure value of the second pressure roller 32 on the battery 200 can be obtained through the second pressure sensor 17.

[0122] S42. When the first pressure value and the second pressure value are within the preset pressure value range, control the battery 200 to continue passing through the rolling channel 30a.

[0123] S43. When the first pressure value and the second pressure value are outside the preset pressure value range, control the battery 200 to stop passing through the rolling channel 30a.

[0124] With such a design, the first pressure value of the first pressure roller 31 on the battery 200 can be obtained, and the second pressure value of the second pressure roller 32 on the battery 200 can be obtained, and the first pressure value and the second pressure value are transmitted to the control end. The control end determines whether the first pressure value and the second pressure value are within the preset pressure value range. When the first pressure value and the second pressure value are within the preset pressure value range, control the battery 200 to continue passing through the rolling channel 30a to continue shaping the insulating film 300 on the large surface of the battery 200 through the first pressure roller 31 and the second pressure roller 32. When the first pressure value and the second pressure value are outside the preset pressure value range, control the battery 200 to stop passing through the rolling channel 30a, and then adjust the positions of the first pressure roller 31 and the second pressure roller 32 so that the battery 200 can be controlled to continue passing through the rolling channel 30a only when the first pressure value and the second pressure value are finally within the preset pressure value range. Thus, the pressure of the first pressure roller 31 and the second pressure roller 32 on the battery 200 can be monitored in real time to quickly find a better shaping position and pressure.

[0125] It should be noted that the preset pressure value refers to a value within a better range when the first pressure roller 31 and the second pressure roller 32 roll the insulating film 300 on the large surface of the battery 200. When the pressure values of the first pressure roller 31 and the second pressure roller 32 on the battery 200 are within the preset pressure value range, the insulating film 300 on the large surface of the battery 200 can be rolled and smoothed and shaped without damaging the battery 200.

[0126] Please refer to Figure 7 In an embodiment of the present invention, when the first pressure value and the second pressure value are outside the preset pressure value range, after controlling the battery 200 to stop passing through the rolling channel 30a, it further includes:

[0127] S44. Under the condition that the first pressure value and the second pressure value are greater than the preset pressure value, control the first pressure roller 31 and the second pressure roller 32 to move away from each other; specifically, the first driver 40 can be controlled to drive the first pressure roller 31 to move away from the second pressure roller 32, and / or the second driver 50 can be controlled to drive the second pressure roller 32 to move away from the first pressure roller 31;

[0128] S45. Under the condition that the first pressure value and the second pressure value are less than the preset pressure value, control the first pressure roller 31 and the second pressure roller 32 to move closer to each other; specifically, the first driver 40 can be controlled to drive the first pressure roller 31 to move towards the second pressure roller 32, and / or the second driver 50 can be controlled to drive the second pressure roller 32 to move towards the first pressure roller 31.

[0129] With such a design, when the obtained first pressure value and second pressure value are greater than the preset pressure value, the control terminal can be used to control the first pressure roller 31 and the second pressure roller 32 to move away from each other, so as to increase the width of the roller pressing channel 30a, and make the first pressure value and the second pressure value fall within the preset pressure value range; while when the obtained first pressure value and second pressure value are less than the preset pressure value, the first pressure roller 31 and the second pressure roller 32 can be controlled to move closer to each other, so as to reduce the width of the roller pressing channel 30a, and make the first pressure value and the second pressure value fall within the preset pressure value range.

[0130] Please refer to Figure 8 , in an embodiment of the present invention, to scrape the insulating film 300 on the side of the battery 200 by the first shaping structure 20 to shape the insulating film 300 on the side of the battery 200, it further includes:

[0131] S21. Obtain the viscosity value of the insulating film 300;

[0132] S22. Under the condition that the viscosity value of the insulating film 300 is less than the preset viscosity value, heat the insulating film 300 on the side of the battery 200 by the first temperature-changing structure 22;

[0133] S23. Under the condition that the viscosity value of the insulating film 300 is greater than the preset viscosity value, cool down the insulating film 300 on the side of the battery 200 by the first temperature-changing structure 22.

[0134] With such a design, when an insulating film 300 with a viscosity value less than a preset viscosity value is used, the first temperature-changing structure 22 can be designed as a heater. When the first shaping structure 20 shapes the insulating film 300 on the side of the battery 200, the insulating film 300 is heated through the first temperature-changing structure 22, so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the side of the battery 200. When an insulating film 300 with a viscosity value greater than the preset viscosity value is used, the first temperature-changing structure 22 can be designed as a cooler. When the first shaping structure 20 shapes the insulating film 300 on the side of the battery 200, the insulating film 300 is cooled through the first temperature-changing structure 22, so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the side of the battery 200.

[0135] Please refer to Figure 9 , in an embodiment of the present invention, when the battery 200 passes through the rolling channel 30a, controlling the second shaping structure 30 to shape the insulating film 300 on the large surface of the battery 200 further includes:

[0136] S31. Obtain the viscosity value of the insulating film 300;

[0137] S32. When the viscosity value of the insulating film 300 is less than the preset viscosity value, heat the insulating film 300 on the large surface of the battery 200 by using the second temperature-changing structure 33;

[0138] S33. When the viscosity value of the insulating film 300 is greater than the preset viscosity value, cool down the insulating film 300 on the large surface of the battery 200 by using the second temperature-changing structure 33.

[0139] With such a design, when an insulating film 300 with a viscosity value less than a preset viscosity value is used, the second temperature-changing structure 33 can be designed as a heater. When the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30 shape the insulating film 300 on the large surface of the battery 200, the insulating film 300 is heated through the second temperature-changing structure 33, so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the large surface of the battery 200. When an insulating film 300 with a viscosity value greater than the preset viscosity value is used, the second temperature-changing structure 33 can be designed as a cooler. When the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30 shape the insulating film 300 on the large surface of the battery 200, the insulating film 300 is cooled through the second temperature-changing structure 33, so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the sticking effect between the insulating film 300 and the large surface of the battery 200.

[0140] It should be noted that the adhesiveness of the insulating film 300 can be obtained at the time of factory shipment. Therefore, the first temperature-changing structure 22 and the second temperature-changing structure 33 can be set as heaters or coolers according to the adhesiveness value of the insulating film 300.

[0141] The preset adhesiveness value of the insulating film 300 refers to the value within a relatively optimal range of the adhesiveness of the insulating film 300. When the adhesiveness of the insulating film 300 is within the preset adhesiveness value range, the insulating film 300 can be firmly adhered to the side surface and the large surface of the battery 200. Optionally, the preset adhesiveness value of the insulating film 300 can be 400 N / 25mm to 600 N / 25mm. Therefore, when the adhesiveness value of the insulating film 300 is less than 400 N / 25mm, the first temperature-changing structure 22 and the second temperature-changing structure 33 are designed as heaters to increase the adhesiveness value of the insulating film 300 to within the preset adhesiveness value range by heating; when the adhesiveness value of the insulating film 300 is greater than 600 N / 25mm, the first temperature-changing structure 22 and the second temperature-changing structure 33 are designed as coolers to decrease the adhesiveness value of the insulating film 300 to within the preset adhesiveness value range by cooling.

[0142] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A film-coated shaping device, characterized in that, Comprising: Frame; A first driver, provided on the frame; A first shaping structure, provided on the frame and drivingly connected to the first driver, the first driver driving the first shaping structure to move, and under the movement of the first shaping structure, the first shaping structure is configured as a flat structure for flattening and shaping the insulating film on the side of the battery; A second driver, provided on the frame; A second shaping structure, with the second shaping structure being set to match the shape of the large surface of the battery, the second shaping structure being provided on the frame, spaced apart from the first shaping structure, and drivingly connected to the second driver, the second driver driving the second shaping structure to move, the second shaping structure having a rolling channel configured to allow the battery to pass through, and the second shaping structure being configured to shape the insulating film on the large surface of the battery when the battery passes through the rolling channel; The second shaping structure includes a first pressing roller and a second pressing roller arranged oppositely, a rolling channel being formed between the first pressing roller and the second pressing roller, and the first pressing roller and the second pressing roller being configured to shape the insulating film on the large surface of the battery when the battery passes through the rolling channel; The frame includes: Frame body; A first lifting plate, provided on the frame body, the first driver driving the first lifting plate to lift and lower, the first shaping structure and the first pressing roller being connected to the first lifting plate; A second lifting plate, provided on the frame body and located below the first lifting plate, the second driver driving the second lifting plate to lift and lower, the second pressing roller being connected to the second lifting plate; the first shaping structure, the first pressing roller, and the second pressing roller are arranged in sequence from top to bottom.

2. The envelope shaping device according to claim 1, wherein The first shaping structure is a flat roller or a rubber-coated block; The outer peripheral side of the flat roller has a shaping contact line; alternatively, the rubber-coated block has a shaping contact surface, and multiple shaping contact lines form the shaping contact surface; the shaping contact line is configured to be parallel to the side of the battery, and under the movement of the first shaping structure, the shaping contact line is configured to shape the insulating film on the side of the battery.

3. The envelope shaping device according to claim 1, characterized in that, The first pressing roller is a convex roller or a concave roller, and the second pressing roller is a convex roller or a concave roller.

4. The envelope shaping device according to claim 1, characterized in that, An avoidance channel opposite to the rolling channel is formed between the first lifting plate and the second lifting plate, and the frame body is provided with an avoidance opening opposite to the avoidance channel.

5. The envelope shaping device according to claim 1, characterized in that, The first shaping structure is located on a side of the first pressing roller away from the second pressing roller.

6. The envelope plastic surgery device according to claim 5, characterized in that, The frame further includes: A first connecting plate, the first shaping structure and the first pressing roller being connected to the first lifting plate through the first connecting plate; A second connecting plate, the second pressing roller being connected to the second lifting plate through the second connecting plate.

7. The envelope shaping device according to claim 6, characterized in that, The frame further includes: A first pressure sensor, the first connecting plate being connected to the first lifting plate through the first pressure sensor, the first pressure sensor being located on a side of the first pressing roller away from the second pressing roller; A second pressure sensor, the second connecting plate being connected to the second lifting plate through the second pressure sensor, the second pressure sensor being located on a side of the second pressing roller away from the first pressing roller.

8. The envelope shaping device according to claim 1, characterized in that, The frame is provided with guide rails extending in the vertical direction; The first lifting plate is provided with a first slider, and the first slider is slidably matched with the guide rail; the second lifting plate is provided with a second slider, and the second slider is slidably matched with the guide rail.

9. The envelope shaping device according to any one of claims 1 to 8, characterized in that A first temperature-changing structure is arranged in the first shaping structure; A second temperature-changing structure is arranged in the second shaping structure.

10. The envelope shaping device according to claim 9, characterized in that, The first temperature-changing structure is a heater or a cooler; And / or, the second temperature-changing structure is a heater or a cooler.

11. A film wrapping and shaping method based on the film wrapping and shaping device according to any one of claims 1 to 10, characterized in that, The film wrapping and shaping method includes the following steps: Drive the first pressing roller of the first shaping structure and the second shaping structure to rise through the first lifting plate to control the first shaping structure to face the side of the battery; Drive the first pressing roller of the first shaping structure and the second shaping structure to reciprocally rise and fall through the first lifting plate, so that the first shaping structure scrapes the insulating film on the side of the battery to shape the insulating film on the side of the battery; Drive the first pressing roller of the first shaping structure and the second shaping structure to descend through the first lifting plate until the first pressing roller is located above the side of the battery, and drive the second pressing roller of the second shaping structure to rise through the second lifting plate until the second pressing roller is located below the side of the battery to control the rolling channel of the second shaping structure to face the side of the battery; When the battery passes through the rolling channel, control the second shaping structure to shape the insulating film on the large surface of the battery.

12. The envelope plastic surgery method according to claim 11, wherein When the battery passes through the rolling channel, controlling the second shaping structure to shape the insulating film on the large surface of the battery further includes: Obtain the first pressure value of the first pressing roller of the second shaping structure on the battery, and obtain the second pressure value of the second pressing roller of the second shaping structure on the battery; When the first pressure value and the second pressure value are within the preset pressure value range, control the battery to continue passing through the rolling channel; When the first pressure value and the second pressure value are outside the preset pressure value range, control the battery to stop passing through the rolling channel.

13. The envelope plastic surgery method according to claim 12, characterized in that, After controlling the battery to stop passing through the rolling channel when the first pressure value and the second pressure value are outside the preset pressure value range, it further includes: When the first pressure value and the second pressure value are greater than the preset pressure value, control the first pressing roller and the second pressing roller to move away from each other; When the first pressure value and the second pressure value are less than the preset pressure value, control the first pressing roller and the second pressing roller to move closer to each other.

14. The envelope plastic surgery method according to claim 11, characterized in that, When the first shaping structure scrapes the insulating film on the side of the battery to shape the insulating film on the side of the battery, it further includes: Obtain the viscosity value of the insulating film; When the viscosity value of the insulating film is less than the preset viscosity value, use the first temperature-changing structure to heat the insulating film on the side of the battery; When the viscosity value of the insulating film is greater than the preset viscosity value, use the first temperature-changing structure to cool the insulating film on the side of the battery.

15. The envelope plastic surgery method according to claim 11, characterized in that, When the battery passes through the rolling channel, controlling the second shaping structure to shape the insulating film on the large surface of the battery further includes: Obtain the viscosity value of the insulating film; When the viscosity value of the insulating film is less than the preset viscosity value, use the second temperature-changing structure to heat the insulating film on the large surface of the battery; Under the condition that the viscosity value of the insulating film is greater than the preset viscosity value, the second variable temperature structure is used to cool the insulating film on the large surface of the battery.

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