Film wrapping and shaping device and method thereof

Abstract

The invention discloses a film coating and shaping device and a method thereof, and relates to the technical field of battery processing equipment, the film coating and shaping device comprises a rack, 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, and under the movement of the first shaping structure, the first shaping structure is configured to be a flat structure and used for smoothing and shaping an insulating film on the side face of the battery; a second shaping structure matched with the large surface of the battery is arranged according to the shape of the large surface of the battery, the second driver drives the second shaping structure to move, the second shaping structure is provided with a rolling channel, the rolling channel is configured to allow the battery to pass through, and the second shaping structure is configured to shape an insulating film on the large surface of the battery when the battery passes through the rolling channel. According to the technical scheme provided by the invention, the problem of bubble wrinkles caused by the fact that bubbles on the insulating film on the side surface of the battery cannot be discharged in time is solved.

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 adopts a first shaping structure and a second shaping structure to shape the insulating film on the side of the battery and the insulating film on the large surface of the battery respectively. Wherein, under the activity of the first shaping structure, the insulating film on the side of the battery is scraped by the first shaping structure. Since the first shaping structure is a flat structure, the insulating film on the side of the battery can be smoothed and shaped, so that each position of the insulating film on the side 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, a second shaping structure matching it can be set according to the shape of the large surface of the battery. In 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 of the battery with a larger 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 of bubbles in the insulating film on the side of the battery failing to 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 circumference of the flat roller has a shaping contact line; the rubber-coated block has a shaping contact surface, and multiple shaping contact lines constitute the shaping contact surface; the shaping contact line is configured to be parallel to the side of the battery, and under the activity of the first shaping structure, the shaping contact line is configured to shape the insulating film on the side of the battery. In such a design, when the first shaping structure is a flat roller, the shaping contact line on the outer circumference of the flat roller can contact the insulating film on the side of the battery, and then the insulating film on the side of the battery is repeatedly scraped under the activity of the flat roller, and the flat roller can rotate while repeatedly scraping, so that the bubbles in the insulating film on the side of the battery can be fully discharged in time, and the wear on the insulating film can also be reduced. 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 of the battery, and then the insulating film on the side of the battery is repeatedly scraped 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 on the side of the battery, the efficiency and effect of discharging bubbles from the insulating film can be improved, and the rubber-coated block has elasticity, which can also reduce the wear on the insulating film.

[0008] In some embodiments, the second shaping structure includes a first pressing roller and a second pressing roller arranged opposite to each other, a rolling channel is formed between the first pressing roller and the second pressing roller, and 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. In such a design, since the large surface of the battery is an uneven surface, the first pressing roller and the second pressing roller matching the shape of the large surface of the battery can be set according to the shape of the large surface of the battery. When the battery passes 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. In such a design, since the large surface of the battery is an uneven surface, a convex roller or a concave roller matching 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 drive the first shaping structure and the second shaping structure to move up and down, respectively. In such a design, the first shaping structure and the second shaping structure are installed on the frame in a lifting manner, so that when shaping the insulating film on the side 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 be lifted and lowered, and 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 be lifted and lowered, and the second pressing roller is connected to the second lifting plate. In such a design, by connecting the first shaping structure and the first pressing roller together on the first lifting plate, the first lifting plate can simultaneously drive the first shaping structure and the first pressing roller of the second shaping structure to be lifted and lowered, without using two lifting structures to install the first shaping structure and the first pressing roller respectively, which can simplify the design of the structure.

[0012] In some embodiments, an avoidance channel opposite to the rolling channel is formed between the first lifting plate and the second lifting plate, and the frame 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 pass through the avoidance channel and the avoidance opening in sequence, which can avoid the first lifting plate, the second lifting plate and the frame blocking the battery, so that the insulating film of the entire large surface of the battery can be pressed into place by the first pressing roller and the second pressing roller of the second shaping structure, so as to timely discharge the bubbles in the insulating film of the large surface of the battery, thereby improving the shaping effect of the insulating film of the large surface of the battery.

[0013] In some embodiments, the second shaping structure includes a first pressing roller and a second pressing roller arranged opposite to each other, a 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 allows the first shaping structure, the first pressing roller and the second pressing roller to be arranged in sequence from top to bottom, which can fully reduce the space occupied by the entire envelope 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. With such a design, the first shaping structure and the first pressing roller can be installed on the first connecting plate, and then the first connecting plate can be installed 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. In such a design, the first connecting plate is connected to the first lifting plate by using the first pressure sensor to obtain the first pressure value of the battery of the first pressing roller through the first pressure sensor, and the second connecting plate is connected to the second lifting plate by using the second pressure sensor to obtain the second pressure value of the battery of the second pressing roller through the second pressure sensor; when the first pressure value and the second pressure value are greater than the preset pressure value, the position of the first pressing roller and / or the second pressing roller is adjusted 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 first pressure value and the second pressure value are less than the preset pressure value, the position of the first pressing roller and / or the second pressing roller is adjusted to reduce the width of the rolling channel so that the first pressure value and the second pressure value are within the preset pressure value range. Therefore, 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 more optimal 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 between the first slider and the guide rail, thereby improving 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 between the second slider and the guide rail, thereby improving the lifting stability of the second pressing roller.

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

[0018] In some embodiments, the first temperature variable structure is a heater or a cooler; and / or, the second temperature variable structure is a heater or a cooler. With such a design, when an insulating film with a viscosity value less than a preset viscosity value is used, the first temperature variable structure and the second temperature variable 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 variable structure so that the viscosity value of the insulating film is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film and the side of the battery; and 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 variable structure so that the viscosity value of the insulating film is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film and the large surface of the battery. When an insulating film with a viscosity value greater than a preset viscosity value is used, the first temperature variable structure and the second temperature variable 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 variable structure so that the viscosity value of the insulating film is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film and the side of the battery; and 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 variable structure so that the viscosity value of the insulating film is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film and the large surface of the battery.

[0019] The present application also provides a capsule shaping method, comprising the following steps: Controlling the first shaping structure to be opposite to the side surface of the battery; causing the first shaping structure to scrape the insulating film on the side of the battery to shape the insulating film on the side of the battery; Controlling the rolling channel of the second shaping structure to be opposite to the side surface of the battery; When the battery passes through the rolling channel, the second shaping structure is controlled to shape the insulating film on the large surface of the battery.

[0020] Such a design first controls the activity of the first shaping structure so that the first shaping structure moves to a position opposite to the side of the battery, and makes 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 all positions of the insulating film on the side of the battery can be shaped in place; then controls the activity of the second shaping structure so that the rolling channel of the second shaping structure is in a position opposite to the side of the battery, and then controls the battery to pass through the rolling channel, so that the insulating film on the large surface of the battery is smoothed and shaped by the second shaping structure. Therefore, when shaping the side and 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 of the battery and the insulating film on the large surface of the battery respectively, and the convex roller is no longer used to shape the insulating film on the side of the battery with a larger flatness, but the 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 bubbles in the insulating film on the side of the battery cannot be discharged in time, resulting in bubble wrinkles.

[0021] 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 also includes: Obtaining a first pressure value of the first pressing roller of the second shaping structure on the battery, and obtaining a 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 a preset pressure value range, controlling 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, the battery is controlled to stop passing through the rolling channel.

[0022] Such a design can obtain the first pressure value of the first pressure roller on the battery, obtain the second pressure value of the second pressure roller on the battery, and transmit the first pressure value and the second pressure value to the control end, and judge whether the first pressure value and the second pressure value are within the preset pressure value range through the control end. When the first pressure value and the second pressure value are within the preset pressure value range, the battery is controlled to continue to pass through the rolling channel, so as to continue to shape the insulating film on the large surface of the battery through the first pressure roller and the second pressure roller; when the first pressure value and the second pressure value are outside the preset pressure value range, the battery is controlled to stop passing through the rolling channel, and then the positions of the first pressure roller and the second pressure roller are adjusted, 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. In this way, the pressure of the first pressure roller and the second pressure roller on the battery can be monitored in real time to quickly find a more optimal shaping position and pressure.

[0023] 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, the method further includes: Under the condition that the first pressure value and the second pressure value are greater than the preset pressure value, controlling the first pressing roller and the second pressing roller to move away from each other; Under the condition that the first pressure value and the second pressure value are less than the preset pressure value, the first pressing roller and the second pressing roller are controlled to approach each other.

[0024] With such a design, when the acquired first pressure value and the second pressure value are greater than the preset pressure value, the first pressure roller and the second pressure roller can be controlled by the control end to move away from each other so as 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 acquired first pressure value and the 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 so as to reduce the width of the rolling channel, so that the first pressure value and the second pressure value are within the preset pressure value range.

[0025] In some embodiments, the first shaping structure is caused to scrape the insulating film on the side of the battery to shape the insulating film on the side of the battery, and further includes: Get the viscosity value of the insulating film; Under the condition that the viscosity value of the insulating film is less than a preset viscosity value, the insulating film on the side of the battery is heated by using the first temperature variable structure; Under the condition that the viscosity value of the insulating film is greater than a preset viscosity value, the first temperature variable structure is used to cool the insulating film on the side of the battery.

[0026] With such a design, when an insulating film with a viscosity value less than a preset viscosity value is used, the first temperature variable structure can be designed as a heater, and when the first shaping structure shapes the insulating film on the side of the battery, the insulating film is heated by the first temperature variable structure so that the viscosity value of the insulating film is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film and the side of the battery; and when an insulating film with a viscosity value greater than the preset viscosity value is used, the first temperature variable structure can be designed as a cooler, and when the first shaping structure shapes the insulating film on the side of the battery, the insulating film is cooled by the first temperature variable structure so that the viscosity value of the insulating film is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film and the side of the battery.

[0027] 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 also includes: Get the viscosity value of the insulating film; Under the condition that the viscosity value of the insulating film is less than the preset viscosity value, the insulating film on the large surface of the battery is heated by the second temperature variable structure; Under the condition that the viscosity value of the insulating film is greater than a preset viscosity value, the second temperature variable structure is used to cool the insulating film on the large surface of the battery.

[0028] With such a design, when an insulating film with a viscosity value less than a preset viscosity value is used, the second temperature variable structure can be designed as a heater, and when the first pressure roller and the second pressure roller of the second shaping structure shape the insulating film on the large surface of the battery, the insulating film is heated by the second temperature variable structure so that the viscosity value of the insulating film is controlled within the preset viscosity, thereby improving the adhesion effect between the insulating film and the large surface of the battery; and when an insulating film with a viscosity value greater than the preset viscosity value is used, the second temperature variable structure can be designed as a cooler, and when the first pressure roller and the second pressure roller of the second shaping structure shape the insulating film on the large surface of the battery, the insulating film is cooled by the second temperature variable structure so that the viscosity value of the insulating film is controlled within the preset viscosity, thereby improving the adhesion effect between the insulating film and the large surface of the battery.

[0029] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, which can be implemented in accordance with the contents of the specification, and to make other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 This is a schematic structural diagram of an embodiment of the capsule shaping device of the present application; Figure 2 This is a schematic structural diagram of an embodiment of the film shaping device of the present application when shaping the side of a battery; Figure 3 This is a schematic diagram of the structure of an embodiment of the film shaping device of the present application when shaping the large surface of a battery; Figure 4 A rear view of an embodiment of the capsule shaping device of the present application; Figure 5 This is a partial structural schematic diagram of an embodiment of the capsule shaping device of the present application; Figure 6 This is a flowchart of the steps of an embodiment of the capsule shaping method of the present application; Figure 7 This is a flowchart of the steps of an embodiment of the capsule shaping method of the present application; Figure 8 This is a flowchart of the steps of an embodiment of the capsule shaping method of the present application; Fig. 9 This is a flow chart of the steps of an embodiment of the capsule shaping method of the present application.

[0032] Description of Figure Numbers:

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0039] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0040] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] 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.

[0042] 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.

[0043] Based on the above problems, the present invention proposes a film shaping device 100, which aims to solve the problem that bubbles in the insulating film 300 on the side of the battery 200 cannot be discharged in time, resulting in bubble wrinkles. The following is a detailed description of the device in conjunction with specific drawings and embodiments.

[0044] See also Figures 1 to 3In one embodiment of the present invention, the film 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 connected to the first driver 40 by transmission, and 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 The actuator 50 is arranged on the frame 10; a second shaping structure 30 matching the shape of the large surface of the battery 200 is arranged, the second shaping structure 30 is arranged on the frame 10, and is spaced apart from the first shaping structure 20, and is transmission-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, the rolling channel 30a is configured for the battery 200 to pass through, and 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.

[0045] In this embodiment, the frame 10 is used to install and fix the first shaping structure 20 and the second shaping structure 30 to support the first shaping structure 20 and the second shaping structure 30 .

[0046] In actual application, the envelope shaping device 100 may include a pushing mechanism for driving the battery 200 to pass through the rolling channel 30a, or the pushing mechanism may also be a structural component of an external device, as long as it can drive the battery 200 to pass through the rolling channel 30a smoothly.

[0047] 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 raised and lowered relative to the frame 10, and can also be horizontally moved or rotated relative to the frame 10, as long as the first shaping structure 20 scrapes the side of the battery 200. The first shaping structure 20 can be a flat roller, or a rubber-coated block, a scraper, a scraper, or the like.

[0048] 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 raised and lowered relative to the frame 10, and can also be moved horizontally relative to the frame 10, as long as it can move to the rolling channel 30a opposite to 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 a first pressing roller 31 and a 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 rollers in the shape of concave rollers, flat rollers, concave-convex rollers, etc., and are specifically set according to the shape of the large surface of the battery 200.

[0049] The first driver 40 and the second driver 50 are respectively used to drive 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 motors and gear racks.

[0050] In summary, in the technical solution of the embodiment of the present application, the technical solution of the present invention adopts the first shaping structure 20 and the second shaping structure 30 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. Among them, under the activity 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, the insulating film 300 on the side of the battery 200 can be smoothed and shaped, 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 matching it can be set according to the shape of the large surface of the battery 200. In 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 surface 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 surface 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 surface of the battery 200 with a larger flatness, a relatively flat first shaping structure 20 is used to smooth and shape the insulating film 300 on the side surface of the battery 200, thereby effectively solving the problem that bubbles in the insulating film 300 on the side surface of the battery 200 cannot be discharged in time, resulting in bubble wrinkles.

[0051] See also Figure 1 , Figure 2In one 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 constitute the shaping contact surface; the shaping contact line 21 is configured to be parallel to the side of the battery 200, and when the first shaping structure 20 is active, the shaping contact line 21 is configured to shape the insulating film on the side of the battery 200.

[0052] The shaped contact line 21 refers to a line used for contacting the side surface of the battery 200 , and the shaped contact line 21 may be a straight line or a curve.

[0053] 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 of the battery 200, and then the insulating film 300 on the side of the battery 200 can be repeatedly scraped under the movement of the flat roller, and the flat roller can rotate while repeatedly scraping, so that the bubbles in the insulating film 300 on the side of the battery 200 can be fully discharged in time, and the wear on the insulating film 300 can also 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 of the battery 200, and then the insulating film 300 on the side of the battery 200 can be repeatedly scraped under the movement of the rubber-coated block. Since the rubber-coated block uses a large-area shaping contact surface to scrape the insulating film 300 on the side of the battery 200, the efficiency and effect of discharging bubbles from 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.

[0054] It is understandable that the rubber-coated block is a block-shaped structure with elasticity. Specifically, the rubber-coated block can be in the shape of a cuboid, a cylinder, a prism, etc., as long as it has a shaped contact surface parallel to the side of the battery 200.

[0055] See also Figures 1 to 3 In one embodiment of the present invention, the second shaping structure 30 includes a first pressing roller 31 and a second pressing roller 32 arranged opposite to each other, and a rolling channel 30a is formed between the first pressing roller 31 and the second pressing roller 32. 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 rolling channel 30a.

[0056] The first pressing roller 31 and the second pressing roller 32 are two rotating rollers arranged in parallel with each other, so that a pressing passage 30a for the battery 200 to pass through is formed between the first pressing roller 31 and the second pressing roller 32. The first pressing roller 31 and the second pressing roller 32 may be of the same size or different sizes.

[0057] 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 matching the shape of the large surface of the battery 200 can be set. When the battery 200 passes 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.

[0058] See also Figures 1 to 3 In one 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.

[0059] A convex roller refers to a roller body that is convex outward relative to the surface of a flat roller; a concave roller refers to a roller body that is concave inward relative to the surface of a flat roller.

[0060] With such a design, since the large surface of the battery 200 is an uneven surface, a convex roller or a concave roller matching 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 to improve the shaping accuracy of the insulating film 300 on the large surface of the battery 200.

[0061] See also Figures 1 to 3 In one embodiment of the present invention, the first driver 40 and the second driver 50 drive the first shaping structure 20 and the second shaping structure 30 to rise and fall respectively.

[0062] Such a design uses the first driver 40 and the second driver 50 to respectively drive the first shaping structure 20 and the second shaping structure 30 to rise and fall, so that when the insulating film 300 on the side of the battery 200 and the insulating film 300 on the large surface of the battery 200 are shaped, 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.

[0063] In practical applications, the first shaping structure 20 and the second shaping structure 30 can be arranged vertically or horizontally.

[0064] See also Figures 1 to 3 In one 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 rise and fall, 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 rise and fall, and the second pressing roller 32 is connected to the second lifting plate 13.

[0065] In this embodiment, the first shaping structure 20 and the first pressing roller 31 are connected to the first lifting plate 12 so as to be lifted and lowered along with the first lifting plate 12, and the second pressing roller 32 is connected to the second lifting plate 13 so as to be lifted and lowered along with the second lifting plate 13. When shaping the side surface of the battery 200, the first shaping structure 20 and the first pressing roller 31 of the second shaping structure 30 are driven by the first lifting plate 12 to rise until the first shaping structure 20 is opposite to the side surface of the battery 200, and then the first shaping structure 20 and the first pressing roller 31 are driven by the first lifting plate 12 to be lifted and lowered reciprocally again, so that the shaping contact line 21 of the first shaping structure 20 repeatedly scrapes the insulating film 300 on the side surface of the battery 200, so as to smooth and shape the insulating film 300 on the side surface of the battery 200. In addition, before the first lifting plate 12 drives the first shaping structure 20 and the first pressing roller 31 to be lifted and lowered reciprocally, the second pressing roller 32 of the second shaping structure 30 is driven by the second lifting plate 13 to be lowered for a certain distance so as to prevent the second pressing roller 32 from colliding with the first pressing roller 31. When the large surface of the battery 200 is shaped, the first shaping structure 20 and the first pressing roller 31 are driven down by the first lifting plate 12 until the first pressing roller 31 is located above the side of the battery 200, and the second pressing roller 32 is driven up by the second lifting plate 13 until the second pressing roller 32 is located below the side of the battery 200, so that the rolling channel 30a is opposite to the side of the battery 200. At this time, 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 during the process of the battery 200 passing through the rolling channel 30a.

[0066] Such a design, by connecting the first shaping structure 20 and the first pressing roller 31 together on the first lifting plate 12, can simultaneously drive the first shaping structure 20 and the first pressing roller 31 of the second shaping structure 30 to rise and fall through the first lifting plate 12, without using two lifting structures to separately install the first shaping structure 20 and the first pressing roller 31, thereby simplifying the structural design.

[0067] 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.

[0068] See also Figure 4 In one 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.

[0069] With such a design, after passing through the rolling channel 30a, the battery 200 can then pass through the avoidance channel 10a and the avoidance opening 10b in sequence, thereby preventing the first lifting plate 12, the second lifting plate 13 and the frame 11 from blocking the battery 200, so that the entire large-surface insulating film 300 of the battery 200 can be rolled into place by the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30, and the bubbles in the large-surface insulating film 300 of the battery 200 can be discharged in time, thereby improving the shaping effect of the large-surface insulating film 300 of the battery 200.

[0070] See also Figures 1 to 3 In one embodiment of the present invention, the second shaping structure 30 includes a first pressing roller 31 and a second pressing roller 32 arranged opposite to each other, 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.

[0071] Such a design allows the first shaping structure 20 , the first pressing roller 31 and the second pressing roller 32 to be arranged in sequence from top to bottom, which can substantially reduce the space occupied by the entire membrane shaping device 100 in the horizontal direction.

[0072] See also Figures 1 to 3 In one embodiment of the present invention, the frame 10 also 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.

[0073] With such a design, the first shaping structure 20 and the first pressure 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, so as to facilitate the installation of the first shaping structure 20 and the first pressure roller 31; similarly, the second pressure 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, so as to facilitate the installation of the second pressure roller 32.

[0074] Optionally, when the first shaping structure 20 is a flat roller, the first connecting plate 14 is provided with a first axial hole and a second axial hole, and the two ends of the flat roller are respectively inserted into the first axial hole and the second axial hole; the first connecting plate 14 is also provided with a third axial hole and a fourth axial hole, and the two ends of the first pressing roller 31 are respectively inserted into the third axial hole and the fourth axial hole. The second connecting plate 15 is provided with a fifth axial hole and a sixth axial hole, and the two ends of the second pressing roller 32 are respectively inserted into the fifth axial hole and the sixth axial hole.

[0075] See also Figures 1 to 3In one embodiment of the present invention, the frame 10 also 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 pressure roller 31 away from the second pressure 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 pressure roller 32 away from the first pressure roller 31.

[0076] In the present embodiment, since the incoming batteries 200 may have thickness errors during the production process, and the batteries 200 with different thicknesses have different pressures on the batteries 200 when passing through the rolling channel 30a, excessive or insufficient pressure on the batteries 200 by the first and second rollers 31 and 32 will affect the shaping accuracy of the large-surface insulating film 300 of the battery 200.

[0077] In this design, the first connecting plate 14 is connected to the first lifting plate 12 by using 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 using 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 position of the first pressing roller 31 and / or the second pressing roller 32 is 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; and when the first pressure value and the second pressure value are less than the preset pressure value, the position of the first pressing roller 31 and / or the second pressing roller 32 is 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. In this way, the pressure 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 more optimal shaping position and pressure.

[0078] 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 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, 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; and 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 pressure roller 31 to move toward the second pressure roller 32, and / or the second driver 50 can be controlled to drive the second pressure roller 32 to move toward the first pressure 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.

[0079] See also Figure 2 , Figure 3 In one embodiment of the present invention, the frame 10 is provided with a guide rail 111 extending in a vertical direction; the first lifting plate 12 is provided with a first slider 121, and the first slider 121 slides with the guide rail 111; the second lifting plate 13 is provided with a second slider 131, and the second slider 131 slides with the guide rail 111.

[0080] 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, thereby improving 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, thereby improving the lifting stability of the second pressing roller 32.

[0081] See also Figure 5 In one embodiment of the present invention, a first temperature-changing structure 22 is provided in the first shaping structure 20 ; and a second temperature-changing structure 33 is provided in the second shaping structure 30 .

[0082] In this embodiment, since the viscosity of the insulating film 300 is too large or too small, the coating effect on the battery 200 will be affected.

[0083] In this design, by providing a first temperature-variable structure 22 in 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-variable structure 22 can be used to heat or cool the insulating film 300 to increase or decrease the viscosity of the insulating film 300 to within a preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the side of the battery 200. Similarly, by providing a second temperature-variable structure 33 in 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-variable structure 33 can be used to heat or cool the insulating film 300 to increase or decrease the viscosity of the insulating film 300 to within a preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the large surface of the battery 200.

[0084] Optionally, the first temperature variable structure 22 is embedded in the first shaping structure 20, which can improve the installation reliability of the first temperature variable structure 22. Similarly, the second temperature variable 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 variable structure 33.

[0085] See also Figure 5 In one 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.

[0086] With such a design, when an insulating film 300 having a viscosity value less than a preset viscosity value is used, the first temperature variable structure 22 and the second temperature variable 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 by the first temperature variable structure 22 so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the side of the battery 200; and when the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30 shapes the insulating film 300 on the large surface of the battery 200, the insulating film 300 is heated by the second temperature variable structure 33 so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the large surface of the battery 200.

[0087] When an insulating film 300 having a viscosity value greater than a preset viscosity value is used, the first temperature variable structure 22 and the second temperature variable structure 33 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 by the first temperature variable structure 22 so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the side of the battery 200; and when the first pressing roller 31 and the second pressing roller 32 of the second shaping structure 30 shapes the insulating film 300 on the large surface of the battery 200, the insulating film 300 is cooled by the second temperature variable structure 33 so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the large surface of the battery 200.

[0088] Optionally, the heater may be a heating tube; and the cooler may be a cooling water channel.

[0089] See also Figure 6 The present invention also provides a capsule shaping method, comprising the following steps: S10, controlling the first shaping structure 20 to face the side of the battery 200; specifically, the first driver 40 may be controlled to drive the first shaping structure 20 to move; S20, causing the first shaping structure 20 to 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 may be repeatedly scraped against the insulating film 300 on the side of the battery 200 to shape the insulating film 300; S30, controlling 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 can be controlled to drive the second shaping structure 30 to move, and the rolling channel 30a of the second shaping structure 30 can be controlled to face the side of the battery 200; 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.

[0090] Such a design first controls the movement of the first shaping structure 20 so that the first shaping structure 20 moves to a position opposite to the side of the battery 200, and makes the first shaping structure 20 scrape 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 into place; then controls the movement of the second shaping structure 30 so that the rolling channel 30a of the second shaping structure 30 is opposite to the side of the battery 200, and then controls the battery 200 to pass through the rolling channel 30a, so that the insulating film 300 on the large surface of the battery 200 is smoothed and shaped by the second shaping structure 30. Therefore, when shaping the side surface 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 surface 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 surface of the battery 200 with a larger flatness, a relatively flat first shaping structure 20 is used to smooth and shape the insulating film 300 on the side surface of the battery 200, thereby effectively solving the problem that bubbles in the insulating film 300 on the side surface of the battery 200 cannot be discharged in time, resulting in bubble wrinkles.

[0091] Optionally, the first shaping structure 20 and the first pressing roller 31 may be automatically controlled to move by the first driver 40 , and the second pressing roller 32 may be automatically controlled to move by the second driver 50 .

[0092] See also Figure 7 In one embodiment of the present invention, when the battery 200 passes through the rolling channel 30a, the second shaping structure 30 is controlled to shape the insulating film 300 on the large surface of the battery 200, and further includes: S41, obtaining a first pressure value of the first pressing roller 31 of the second shaping structure 30 on the battery 200, and obtaining a second pressure value of the second pressing roller 32 of the second shaping structure 30 on the battery 200; specifically, the first pressure value of the first pressing roller 31 on the battery 200 may be obtained through the first pressure sensor 16, and the second pressure value of the second pressing roller 32 on the battery 200 may be obtained through the second pressure sensor 17; S42, when the first pressure value and the second pressure value are within the preset pressure value range, controlling the battery 200 to continue passing through the rolling channel 30a; S43 , when the first pressure value and the second pressure value are outside the preset pressure value range, controlling the battery 200 to stop passing through the rolling channel 30 a .

[0093] Such a design can obtain the first pressure value of the first pressing roller 31 on the battery 200, obtain the second pressure value of the second pressing roller 32 on the battery 200, and transmit the first pressure value and the second pressure value to the control end, and the control end can judge 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, the battery 200 is controlled to continue to pass through the rolling channel 30a, so as to continue to shape the insulating film 300 on the large surface of the battery 200 through the first pressing roller 31 and the second pressing roller 32; when the first pressure value and the second pressure value are outside the preset pressure value range, the battery 200 is controlled to stop passing through the rolling channel 30a, and then the positions of the first pressing roller 31 and the second pressing roller 32 are adjusted, 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. In this way, the pressure 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.

[0094] It should be noted that the preset pressure value refers to the value within a preferred 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 value of the first pressure roller 31 and the second pressure roller 32 on the battery 200 is within the preset pressure value range, the insulating film 300 on the large surface of the battery 200 can be rolled and smoothed without damaging the battery 200.

[0095] See also Figure 7 In one 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, the method further includes: S44, under the condition that the first pressure value and the second pressure value are greater than the preset pressure value, controlling the first pressure roller 31 and the second pressure roller 32 to move away from each other; specifically, the first driver 40 may be controlled to drive the first pressure roller 31 to move away from the second pressure roller 32, and / or the second driver 50 may be controlled to drive the second pressure roller 32 to move away from the first pressure roller 31; S45. Under the condition that the first pressure value and the second pressure value are less than the preset pressure values, the first pressure roller 31 and the second pressure roller 32 are controlled to approach each other; specifically, the first driver 40 can be controlled to drive the first pressure roller 31 to move toward the second pressure roller 32, and / or the second driver 50 can be controlled to drive the second pressure roller 32 to move toward the first pressure roller 31.

[0096] With such a design, when the acquired first pressure value and the second pressure value are greater than the preset pressure value, the first pressure roller 31 and the second pressure roller 32 can be controlled by the control end to move away from each other 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; and when the acquired first pressure value and the 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 rolling channel 30a, so that the first pressure value and the second pressure value are within the preset pressure value range.

[0097] See also Figure 8 In one embodiment of the present invention, the first shaping structure 20 is used to 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, and further includes: S21, obtaining the viscosity value of the insulating film 300; S22, under the condition that the viscosity value of the insulating film 300 is less than a preset viscosity value, the insulating film 300 on the side of the battery 200 is heated by using the first temperature variable structure 22; S23 . When the viscosity of the insulating film 300 is greater than a preset viscosity, the first temperature changing structure 22 is used to cool the insulating film 300 on the side of the battery 200 .

[0098] With such a design, when an insulating film 300 having a viscosity value less than a preset viscosity value is used, the first temperature variable 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 by the first temperature variable structure 22 so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the side of the battery 200; and when an insulating film 300 having a viscosity value greater than the preset viscosity value is used, the first temperature variable 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 by the first temperature variable structure 22 so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the side of the battery 200.

[0099] See also Fig. 9 In one embodiment of the present invention, when the battery 200 passes through the rolling channel 30a, the second shaping structure 30 is controlled to shape the insulating film 300 on the large surface of the battery 200, and further includes: S31, obtaining the viscosity value of the insulating film 300; S32, under the condition that the viscosity value of the insulating film 300 is less than the preset viscosity value, the second temperature variable structure 33 is used to heat the insulating film 300 on the large surface of the battery 200; S33 . Under the condition that the viscosity value of the insulating film 300 is greater than a preset viscosity value, the second temperature variable structure 33 is used to cool the insulating film 300 on the large surface of the battery 200 .

[0100] With such a design, when an insulating film 300 having a viscosity value less than a preset viscosity value is used, the second temperature variable structure 33 can be designed as a heater. When the first pressure roller 31 and the second pressure 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 by the second temperature variable structure 33 so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the large surface of the battery 200; and when an insulating film 300 having a viscosity value greater than the preset viscosity value is used, the second temperature variable structure 33 can be designed as a cooler. When the first pressure roller 31 and the second pressure 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 by the second temperature variable structure 33 so that the viscosity value of the insulating film 300 is controlled within the preset viscosity value, thereby improving the adhesion effect between the insulating film 300 and the large surface of the battery 200.

[0101] It should be noted that the viscosity of the insulating film 300 can be obtained at the factory, so the first temperature change structure 22 and the second temperature change structure 33 can be set as a heater or a cooler according to the viscosity value of the insulating film 300 .

[0102] The preset viscosity value of the insulating film 300 refers to the value of the viscosity of the insulating film 300 within a preferred range. When the viscosity of the insulating film 300 is within the preset viscosity value range, the insulating film 300 can be firmly attached to the side and large surface of the battery 200. Optionally, the preset viscosity value of the insulating film 300 can be 400 N / 25mm~600 N / 25mm, so when the viscosity value of the insulating film 300 is less than 400 N / 25mm, the first temperature variable structure 22 and the second temperature variable structure 33 are designed as heaters to increase the viscosity value of the insulating film 300 to within the preset viscosity value range by heating; when the viscosity value of the insulating film 300 is greater than 600 N / 25mm, the first temperature variable structure 22 and the second temperature variable structure 33 are designed as coolers to reduce the viscosity value of the insulating film 300 to within the preset viscosity value range by cooling.

[0103] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A capsule shaping device, characterized in that: include: frame; A first driver, disposed on the frame; A first shaping structure is provided on the frame and is drivingly connected to the first driver, the first driver drives 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, and is used to flatten and shape the insulating film on the side of the battery; A second driver is provided on the frame; A second shaping structure is provided to match the shape of the large surface of the battery, the second shaping structure is provided 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.

2. The capsule shaping device according to claim 1, characterized in that: 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; or the rubber-coated block has a shaping contact surface, and a plurality of shaping contact lines constitute the shaping contact surface; the shaping contact line is configured to be parallel to the side surface of the battery, and under the activity of the first shaping structure, the shaping contact line is configured to shape the insulating film on the side surface of the battery.

3. The capsule shaping device according to claim 1, characterized in that: The second shaping structure includes a first pressing roller and a second pressing roller arranged opposite to each other, a rolling channel is formed between the first pressing roller and the second pressing roller, and 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.

4. The capsule shaping device according to claim 3, 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.

5. The capsule shaping device according to claim 3, characterized in that: The first driver and the second driver drive the first shaping structure and the second shaping structure to rise and fall respectively.

6. The capsule shaping device according to claim 5, characterized in that: The frame comprises: Frame; A first lifting plate is arranged on the frame, the first driver drives the first lifting plate to rise and fall, and 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 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.

7. The capsule shaping device according to claim 6, 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.

8. The capsule shaping device according to claim 6, characterized in that: The second shaping structure comprises a first pressing roller and a second pressing roller which are arranged opposite to each other, and the pressing channel is formed between the first pressing roller and the second pressing roller; the first shaping structure is located on a side of the first pressing roller away from the second pressing roller.

9. The capsule shaping device according to claim 8, characterized in that: The frame also includes: a first connecting plate, through which the first shaping structure and the first pressing roller are connected to the first lifting plate; A second connecting plate, wherein the second pressing roller is connected to the second lifting plate through the second connecting plate.

10. The capsule shaping device according to claim 9, characterized in that: The frame also includes: a first pressure sensor, wherein the first connecting plate is connected to the first lifting plate through the first pressure sensor, and the first pressure sensor is located on a side of the first pressing roller away from the second pressing roller; A second pressure sensor, wherein the second connecting plate is connected to the second lifting plate through the second pressure sensor, and the second pressure sensor is located on a side of the second pressing roller away from the first pressing roller.

11. The capsule shaping device according to claim 6, characterized in that: The frame is provided with a guide rail extending in a 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.

12. The capsule shaping device according to any one of claims 1 to 11, characterized in that: A first temperature-changing structure is provided in the first shaping structure; A second temperature changing structure is provided in the second shaping structure.

13. The capsule shaping device according to claim 12, 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.

14. A capsule shaping method, characterized in that: The following steps are involved: Controlling the first shaping structure to be opposite to the side surface of the battery; Allowing the first shaping structure to scrape the insulating film on the side of the battery to shape the insulating film on the side of the battery; Controlling the rolling channel of the second shaping structure to be opposite to the side surface of the battery; When the battery passes through the rolling channel, the second shaping structure is controlled to shape the insulating film on the large surface of the battery.

15. The capsule shaping method according to claim 14, 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 also includes: Acquire a first pressure value of the first pressing roller of the second shaping structure on the battery, and acquire a 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 a preset pressure value range, controlling the battery to continue passing through the rolling channel; When the first pressure value and the second pressure value are outside a preset pressure value range, the battery is controlled to stop passing through the rolling channel.

16. The capsule shaping method according to claim 15, 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, the method further includes: Under the condition that the first pressure value and the second pressure value are greater than a preset pressure value, controlling the first pressing roller and the second pressing roller to move away from each other; Under the condition that the first pressure value and the second pressure value are less than a preset pressure value, the first pressing roller and the second pressing roller are controlled to approach each other.

17. The capsule shaping method according to claim 14, characterized in that: The step of causing the first shaping structure to scrape the insulating film on the side of the battery to shape the insulating film on the side of the battery further includes: Get the viscosity value of the insulating film; Under the condition that the viscosity value of the insulating film is less than a preset viscosity value, the insulating film on the side of the battery is heated by using the first temperature variable structure; Under the condition that the viscosity value of the insulating film is greater than a preset viscosity value, the first temperature variable structure is used to cool the insulating film on the side of the battery.

18. The capsule shaping method according to claim 14, 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 also includes: Get the viscosity value of the insulating film; Under the condition that the viscosity value of the insulating film is less than the preset viscosity value, the insulating film on the large surface of the battery is heated by the second temperature variable structure; Under the condition that the viscosity value of the insulating film is greater than a preset viscosity value, the second temperature variable structure is used to cool the insulating film on the large surface of the battery.

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