Film-applying device and film-applying method

Abstract

A film-applying device and a film-applying method. The film-applying device (100) is used for applying a film onto a target object, and comprises a frame (10), a film supply mechanism (20), a film-applying mechanism (30) and a control mechanism, wherein the frame comprises a first guide rail (11) extending in a first direction that is parallel to a surface to be film-applied of the target object; the film supply mechanism is configured to receive a film roll (200) and provide a conveying path along which a film tape released from the film roll is conveyed; the film-applying mechanism is movably connected to the first guide rail, and is configured to pull the leading end of the film tape, which is conveyed along the conveying path, to a film-applying starting position, move along the first guide rail to attach the film tape to the surface to be film-applied of the target object in the first direction, and cut off the film tape at a preset position of the film tape; and the control mechanism is configured to at least control the film-applying mechanism to operate so as to apply the film to the target object.

Description

Film laminating equipment and film laminating method

[0001] Cross-references

[0002] This application refers to Chinese patent application No. 202410268592.9, filed on March 8, 2024, entitled “Film Laminating Equipment and Film Laminating Method,” which is incorporated into this application in its entirety by reference. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a film pasting device and a film pasting method. Background Art

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0005] During the battery production process, the batteries need to be film-laminated. In related technologies, the film-laminated equipment first cuts a section of film from a film roll, then transfers this section of film over the battery to be film-laminated, and then applies the film to the battery. Film cutting, film removal, and film application are performed separately, making it difficult to synchronize the rhythm of different production operations, resulting in a long production process and low production efficiency.

[0006] Summary of the Invention

[0007] The present application aims to solve at least one of the technical problems existing in the background art. To this end, one purpose of the present application is to provide a film laminating device and a film laminating method to alleviate, mitigate or eliminate the problems caused by the asynchronous production rhythm of the film laminating device in the related art.

[0008] An embodiment of the first aspect of the present application provides a film-sticking device for sticking film on a target object, comprising: a frame including a first guide rail, the first guide rail extending along a first direction parallel to the surface of the target object to be stuck with film; a film preparation mechanism, configured to receive a film roll and provide a conveying path along which the film tape is conveyed after being released from the film roll; a film-sticking mechanism, movably connected to the first guide rail, and configured to pull the starting end of the film tape conveyed via the conveying path to a film-sticking starting position, move along the first guide rail to stick the film tape along the first direction to the surface of the target object to be stuck with film, and cut the film tape at a predetermined position of the film tape; and a control mechanism, configured to at least control the film-sticking mechanism to operate to stick film on the target object.

[0009] In the technical solution of the embodiment of the present application, a film laminating mechanism is provided to pull the starting end of the film strip to the laminating start position, and then the film strip is laminating. At the end of the laminating process, the film strip attached to the target object is cut off from the film roll. This allows the film removal, laminating, and cutting actions to be repeated in a compact cycle, thereby optimizing the production cycle and achieving high-speed production.

[0010] In some embodiments, the film laminating mechanism includes: a film taking assembly configured to take the starting end of a film tape conveyed via a conveying path and move forward along a first guide rail to pull the starting end of the film tape to a film laminating start position; a rolling assembly configured to press the film tape pulled by the film taking assembly downward toward a target object's surface to be laminating, and move backward along the first guide rail to roll the film tape onto the target object's surface to be laminating; and a cutter assembly configured to cut the film tape when it moves backward along the first guide rail to a predetermined position. By integrating the film taking, rolling, and cutter assemblies into the same film laminating mechanism, the cumbersome film laminating steps (i.e., first cutting the film tape and then laminating the film tape on the target object) of the film laminating equipment in the related art are improved, and the film tape can be laminating while being rolled, thereby enabling a compact film laminating process and improving film laminating efficiency and quality.

[0011] In some embodiments, the film removal assembly includes a first frame, an upper clamping plate, a lower clamping plate, and a first actuator. The upper clamping plate, the lower clamping plate, and the first actuator are connected to the first frame. The first actuator is configured to change the spacing between the upper clamping plate and the lower clamping plate to clamp or release the starting end of the film strip. By configuring the upper and lower clamping plates of the film removal assembly to work together to clamp the film strip, the starting end of the film strip can be reliably pulled, facilitating subsequent film application steps.

[0012] In some embodiments, the rolling assembly includes a second frame, a pressure roller, and a second actuator. The pressure roller and the second actuator are connected to the second frame. The pressure roller is configured to move in a second direction intersecting the surface of the target object to be film-applied, and the axis of the pressure roller is parallel to a third direction, which is perpendicular to the first direction and parallel to the surface of the target object to be film-applied. The second actuator is configured to drive the pressure roller to move in the second direction toward or away from the surface of the target object to be film-applied. Because the pressure roller can apply downward pressure to the film strip relative to the surface of the target object to be film-applied, the film strip can be applied while rolling, reducing the possibility of wrinkles or bubbles during the film application process, making the film application surface smooth, and improving both film application efficiency and film application quality.

[0013] In some embodiments, the cutter assembly is located upstream of the film removal assembly in the direction of film transport. Furthermore, when a roller assembly is used to roll the film, the roller assembly is located between the cutter assembly and the film removal assembly. By sequentially arranging the cutter assembly, roller assembly, and film removal assembly, starting from upstream in the direction of film transport, the film removal, rolling and laminating processes, and cutting of the film are facilitated and performed smoothly, thereby improving film lamination efficiency.

[0014] In some embodiments, the film laminating mechanism further includes a first mounting bracket and a second mounting bracket, each separated from the other. The film removal assembly is movably connected to the first guide rail via the first mounting bracket, and the roller assembly and cutter assembly are movably connected to the first guide rail via the second mounting bracket. By providing separate mounting brackets, the film removal assembly of the film laminating mechanism can further move relative to the other components of the film laminating mechanism, thereby flexibly clamping the starting end of the film to the film laminating position.

[0015] In some embodiments, the first and second mounting brackets are configured to move in a second direction intersecting the surface of the object to be film-applied. Because the first and second mounting brackets can move in the second direction intersecting the surface to be film-applied, the height of the film-applied mechanism relative to the surface to be film-applied can be adjusted, thereby improving the applicability of the film-applied equipment.

[0016] In some embodiments, the film laminating mechanism further includes a third mounting bracket, on which the film removal assembly, roller pressing assembly, and cutter assembly are integrated and movably connected to the first guide rail via the third mounting bracket. The film removal assembly is configured to move relative to the third mounting bracket in a first direction. Integrating the film removal assembly, roller pressing assembly, and cutter assembly on the third mounting bracket improves the integration of the film laminating mechanism, facilitating the reduction of movable components on the first guide rail, thereby reducing the structural complexity and footprint of the film laminating apparatus.

[0017] In some embodiments, the film laminating mechanism further includes a clamping assembly located upstream of the cutter assembly in the direction of film tape transport and configured to clamp the film tape conveyed via the transport path so that the film removal assembly can pull the starting end of the film tape. By arranging the clamping assembly upstream of the cutter assembly in the direction of film tape transport, after a film laminating operation is completed and the cutter assembly cuts the film tape, the free starting end of the cut film tape is promptly fixed and clamped to prevent the starting end of the film tape from rebounding or retracting toward the film roll due to the tension of the film preparation mechanism and the elasticity of the film tape itself, thereby preparing the film for the next film laminating operation.

[0018] In some embodiments, the film laminating mechanism further includes at least one conveyor roller configured to convey the film tape conveyed via the conveyor path to the clamping assembly. The at least one conveyor roller is provided on the film laminating mechanism so that the film tape can be conveyed along a desired path to a film laminating position on the target object.

[0019] In some embodiments, at least one conveying roller includes a pair of correcting rollers. The at least one pair of correcting rollers is provided so that the film strip moves along a prescribed path and direction during the lamination process, thereby helping to correct deviation or skew that may occur during the lamination process.

[0020] In some embodiments, the film-applying mechanism further includes a positioning detection assembly configured to detect the position of a first end of a target object, the first end of the target object being the downstream end of the film strip in the direction of transport of the film strip, and the control mechanism further configured to determine a film-applying start position based on the position of the first end of the target object, with the film-applying start position being located directly above the first end of the target object. Because the film-applying mechanism includes a positioning detection assembly, there is no need for additional detection equipment, making the film-applying mechanism compact and significantly saving space and cost. Furthermore, integrating positioning detection of the film-applying start position with the film removal, application, and cutting processes can significantly improve the speed and accuracy of film-applying.

[0021] In some embodiments, the positioning detection component includes a camera with its field of view facing the surface of the target object to be film-applied. The camera can be used to capture the film application status at the initial film application position, or to capture the edge of the film after rolling to detect film application accuracy. This allows the rolling, applying, cutting, and detection operations to be integrated into the same film application equipment, improving film application efficiency and accuracy.

[0022] In some embodiments, the film preparation mechanism includes: a back plate; a first reel pivotally connected to the back plate for receiving a film roll; and a plurality of conveyor rollers pivotally connected to the back plate and positioned along a conveying path to convey the film strip released from the film roll. The film preparation mechanism includes a plurality of conveyor rollers disposed around the film roll to allow the film strip to be released and transferred along a predetermined path and direction.

[0023] In some embodiments, the multiple conveyor rollers include at least one gravity roller. The backplate is provided with at least one vertically extending groove. The at least one gravity roller is movably connected to the backplate via the at least one groove. The at least one gravity roller is capable of reciprocating vertically along the at least one groove to tension the film strip during conveyance. By providing the gravity roller, in conjunction with other conveyor rollers of the film preparation mechanism, the film strip tension is controlled along its conveyance path, tightening the film strip to prevent wrinkles or bubbles during the subsequent film application process, thereby improving film application quality.

[0024] In some embodiments, the film preparation mechanism further includes a second reel pivotally connected to the backing plate and positioned downstream of the first reel in the film strip transport path, for receiving the backing paper peeled from the film strip. Providing the second reel on the film preparation mechanism to receive the backing paper peeled from the film strip eliminates the need for a separate receiving mechanism, making the device more compact.

[0025] In some embodiments, the frame further includes at least one crossbeam extending in a third direction perpendicular to the first direction and parallel to the surface of the target object to be film-applied. The first guide rail is movably connected to the at least one crossbeam so as to be capable of reciprocating in the third direction. The first guide rail can reciprocate along the crossbeam so as to adjust its direction according to the actual incoming direction of the target object, thereby adjusting the direction of film application and adaptively improving film application accuracy.

[0026] An embodiment of the second aspect of the present application provides a film pasting method, which is applied to a film pasting device, the film pasting device comprising: a frame comprising a first guide rail, the first guide rail extending along a first direction parallel to the surface of the target object to be pasted with the film; a film preparation mechanism, constructed to receive a film roll and provide a conveying path along which the film strip is conveyed after being released from the film roll; and a film pasting mechanism, movably connected to the first guide rail, the film pasting method comprising: controlling the film pasting mechanism to pull the starting end of the film strip conveyed via the conveying path to a film pasting starting position; controlling the film pasting mechanism to move along the first guide rail to attach the film strip to the surface of the target object to be pasted with the film along the first direction; and controlling the film pasting mechanism to cut the film strip at a predetermined position of the film strip.

[0027] In the technical solution of the embodiment of the present application, the film is pasted by pulling the film tape, and the film tape is immediately cut after the film pasting action is completed, so that the film pulling and roller pasting can be carried out simultaneously, optimizing the film pasting action, thereby greatly improving the production rhythm and realizing high-speed production. At the same time, it can reduce the cost of the film pasting equipment and reduce the space occupied by the machine.

[0028] In some embodiments, the film pasting mechanism includes: a film taking assembly, a rolling assembly and a cutter assembly, and controlling the film pasting mechanism to pull the starting end of the film tape conveyed via the conveying path to the film pasting starting position includes: controlling the film taking assembly to pull the starting end of the film tape conveyed via the conveying path; and controlling the film pasting mechanism to move forward along the first guide rail to pull the starting end of the film tape to the film pasting starting position; controlling the film pasting mechanism to move along the first guide rail to attach the film tape to the surface to be pasted of the target object along the first direction includes: controlling the rolling assembly to press the film tape pulled by the film taking assembly toward the surface to be pasted of the target object; and controlling the film pasting mechanism to move backward along the first guide rail to roll the film tape along the first direction onto the surface to be pasted of the target object; controlling the film pasting mechanism to cut the film tape at a predetermined position of the film tape includes: controlling the cutter assembly to cut the film tape when it moves backward along the first guide rail to the predetermined position. By integrating the film taking, rolling and cutting components into the same film laminating mechanism, the cumbersome film laminating steps of the film laminating equipment in the related art (i.e., first cutting the film tape and then sticking the film tape on the target object) are improved, and the film tape can be rolled and pasted at the same time, thereby enabling a compact film laminating process and improving film laminating efficiency and quality.

[0029] In some embodiments, controlling the film removal assembly to pull the starting end of a film strip conveyed via a conveying path includes: controlling the film removal assembly to move rearwardly along a first guide rail to a first position to grip the starting end of the film strip; and controlling the film removal assembly to move forwardly along the first guide rail to a second position to pull the film strip to a predetermined length, wherein the predetermined length is the distance between the second position and the first position, and the second position is downstream of the first position in the conveying direction of the film strip. By controlling the film removal assembly to move from the first position to the second position in the film application direction, the starting end of the gripped film strip is released by a predetermined length, thereby pulling the film strip in the direction of the target object to be applied, preparing for subsequent film application steps.

[0030] In some embodiments, the film-applying mechanism further includes a positioning detection component, and the film-applying method further includes: controlling the positioning detection component to detect the position of the first end of the target object when controlling the film-applying mechanism to move forward along the first guide rail; determining the film-applying starting position based on the position of the first end of the target object, wherein the film-applying starting position is located directly above the first end of the target object in the first direction, and the first end of the target object is the end of the target object in the first direction that is located downstream in the conveying direction of the film strip. Because the film-applying mechanism includes a positioning detection component, there is no need to add a separate detection device, making the film-applying device compact and significantly saving space and cost. Moreover, the positioning detection of the film-applying starting position is integrated with the film-removing, film-applying, and film-cutting actions, which can significantly improve the speed and accuracy of film-applying.

[0031] In some embodiments, the film applying method further includes: controlling the film removal assembly to release the starting end of the film strip before controlling the film applying mechanism to move rearward along the first guide rail. After determining the starting position for film application and before the mounting bracket of the film applying mechanism moves rearward, the starting end of the film strip is released to a film application position at the first end of the target object, thereby initiating film application.

[0032] In some embodiments, the film laminating mechanism further includes a clamping assembly, which is located upstream of the cutter assembly in the conveying direction of the film tape and is constructed to clamp the film tape conveyed via the conveying path so that the film taking assembly can pull the starting end of the film tape. The film laminating method further includes: when the rolling assembly rolls the film tape, controlling the clamping assembly to release the film tape. After a complete film laminating and cutting action is completed, controlling the clamping assembly to fix and clamp the free starting end of the cut film tape to prevent the starting end of the film tape from rebounding or retracting toward the film roll due to the tension of the film preparation mechanism and the elasticity of the film tape itself, so as to prepare the film for the next film laminating action; accordingly, when the film taking assembly pulls the starting end of the film tape and when the rolling assembly rolls the film tape, controlling the clamping assembly to release the film tape for film laminating.

[0033] In some embodiments, the cutter assembly is located upstream of the film removal assembly in the conveying direction of the film tape, and when the rolling assembly rolls the film tape, the rolling assembly is located between the cutter assembly and the film removal assembly, and the length from the starting end of the film tape to the predetermined position is equal to the size of the target object in the first direction. The film application method further includes: when controlling the cutter assembly to cut the film tape at the predetermined position, controlling the clamping assembly to clamp the film tape; after controlling the cutter assembly to cut the film tape at the predetermined position, controlling the film application mechanism to continue to move backward along the first guide rail so that the rolling assembly rolls the remaining portion of the cut film tape that has not been rolled onto the surface of the target object to be film applied; and controlling the rolling assembly to lift in a direction away from the surface of the target object to be film applied, so as to allow the film removal assembly to cross the rolling assembly and pull the new starting end of the film tape from the clamping assembly. After controlling the cutter assembly to cut the film tape, the mounting bracket is controlled to continue to move backward along the first guide rail, so that the rolling assembly rolls the remaining part of the cut film tape that has not been rolled onto the surface to be film-laminated of the target object, thereby completing a complete film-laminated action on the surface to be film-laminated of the target object.

[0034] 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, it can be implemented in accordance with the contents of the specification. In order to make the above and 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

[0035] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the drawings without paying creative work.

[0036] FIG1 is an overall schematic diagram of a film laminating device according to some embodiments of the present application;

[0037] FIG2 is an overall schematic diagram of a film laminating mechanism of a film laminating device according to some embodiments of the present application;

[0038] FIG3 is a schematic structural diagram of a roller laminating and cutter assembly in a film laminating mechanism in some embodiments of the present application;

[0039] FIG4 is a simplified schematic diagram of a film-applying method according to some embodiments of the present application;

[0040] FIG5 is a simplified schematic diagram of a film-applying mechanism according to some embodiments of the present application;

[0041] FIG6 is a simplified schematic diagram of a film-applying mechanism according to some embodiments of the present application;

[0042] FIG7 is a simplified schematic diagram of a film-applying mechanism according to some embodiments of the present application;

[0043] FIG8 is a simplified schematic diagram of a film-applying mechanism according to some embodiments of the present application;

[0044] FIG9 is a simplified schematic diagram of a film-sticking mechanism according to some embodiments of the present application.

[0045] Explanation of the accompanying drawings: Film laminating equipment 100; film roll 200; incoming material cart 300; surface to be film-laminated 400; frame 10; first guide rail 11; crossbeam 12; film preparation mechanism 20; back plate 21; groove 211; first reel 22; multiple conveying rollers 23; gravity roller 231; second reel 24; film laminating mechanism 30; film taking assembly 32; rolling assembly 33; cutter assembly 34; at least one conveying roller 35; positioning detection assembly 36; clamping assembly 37; first mounting bracket 311; second mounting bracket 312; first frame 321; upper clamping plate 322; lower clamping plate 323; second frame 331; pressure roller 332; deviation correction roller 351; camera 361; first direction X; second direction Y; third direction Z. DETAILED DESCRIPTION

[0046] The following 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 more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art 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-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0048] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0049] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0050] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0051] 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).

[0052] 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., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0053] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0054] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0055] During the battery production process, depending on the protection and fixation requirements of different types of batteries, the batteries need to be filmed according to the situation, so as to provide insulation protection, shock absorption, fixation stability, waterproofing and dustproofing for the batteries. In related technologies, the film-laminating equipment first cuts a section of film strip from the film roll, then transfers the section of film strip to the top of the battery to be filmed, and then films the battery. Among them, the film cutting, film removal, and film laminating are carried out separately, and the rhythm of different production actions is difficult to synchronize, resulting in a long production process and low production efficiency.

[0056] Based on the above considerations, and to alleviate, mitigate, or resolve the issues associated with the asynchronous production cycle of film laminating equipment in related technologies, a film laminating device and corresponding film laminating method have been designed. These allow for a compact process for film removal and laminating, and for film cutting to be performed at the end of laminating, separating the film tape attached to the target object from the film roll. This allows for a compact cycle of film removal, laminating, and cutting, thereby optimizing production cycle time and achieving high-speed production.

[0057] The film-laminating device 100 disclosed in the embodiment of the present application can be used for, but is not limited to, laminating batteries, and the batteries are not limited to being used in electrical devices such as vehicles, ships, or aircraft.

[0058] Embodiments of the present application provide a film laminating device 100 for laminating a target object, as shown in Figures 1 to 3. Figure 1 shows an overall schematic diagram of the film laminating device 100 according to some embodiments of the present application, Figure 2 shows an overall schematic diagram of the film laminating mechanism 30 of the film laminating device 100 according to some embodiments of the present application, and Figure 3 shows a schematic diagram of the structure of the roller laminating and cutter assembly 34 of the film laminating mechanism 30 according to some embodiments of the present application.

[0059] The film laminating device 100 includes a frame 10, a film preparation mechanism 20, a film laminating mechanism 30 and a control mechanism.

[0060] The frame 10 includes a first guide rail 11 , which extends along a first direction X parallel to the surface of the target object to be film-applied.

[0061] The film preparation mechanism 20 is configured to receive the film roll 200 and provide a conveying path along which the film tape is conveyed after being released from the film roll 200 .

[0062] The film laminating mechanism 30 is movably connected to the first guide rail 11 and is configured to pull the starting end of the film tape conveyed via the conveying path to the film laminating starting position, move along the first guide rail 11 to attach the film tape to the surface to be laminating of the target object along a first direction, and cut the film tape at a predetermined position of the film tape.

[0063] The control mechanism (not shown) is configured to at least control the film application mechanism 30 to operate so as to apply a film to the target object.

[0064] In some examples, the target object can be a battery (e.g., a battery pack or battery module), and the surface of the target object to be film-coated can be the larger surface of the battery. In the example of Figure 1 , the target object (not shown) can be placed on the upper surface of the incoming material cart 300 to await film application. It should be understood that a battery is merely an example of a target object, and the embodiments of the present disclosure are not limited to application to batteries but can be applied to any appropriate object to be film-coated.

[0065] In the example of FIG1 , the film preparation mechanism 20 and the frame 10 are shown as separate. However, in other embodiments, they may be connected to each other. For example, the film preparation mechanism 20 and the first guide rail 11 may be fixedly connected. The embodiments of the present application are not limited in this respect. Furthermore, it should be understood that FIG1 shows two sets of film preparation mechanisms 20 and film application mechanisms 30 arranged back-to-back, but this is merely schematic and exemplary; in other embodiments, more or fewer film preparation mechanisms 20 and film application mechanisms 30 are possible.

[0066] As used herein, the term "control mechanism" may refer to any suitable industrial control device, which may take the form of, for example, a circuit board or an industrial computer. In one example, the control mechanism may include one or more programmable logic controllers (PLCs) for controlling at least the operation of the film laminating mechanism 30. It should be understood that the control mechanism may also be implemented by other controllers (e.g., a microcontroller unit (MCU), a digital signal processor (DSP), a complex programmable logic device (CPLD), a field programmable gate array (FPGA), or a combination thereof). The control mechanism may be integrated into the film laminating device 100, or may even be physically separated from the other components of the film laminating device 100.

[0067] The term "transfer path" refers to the path along which the starting end of the film strip is transferred from the film roll 200 of the film preparation mechanism 20 to the film application mechanism 30, that is, the path along which the starting end of the film strip extends from the film roll 200 to the film application mechanism 30. In an example, the transfer path of the film strip may be defined by a series of transfer rollers, which will become more apparent in the following description in conjunction with Figures 4 to 9.

[0068] In the example of Figure 1 , the film-applying mechanism 30 is "movably" connected to the first guide rail 11 via a linear guide structure. It will be appreciated that in other embodiments, "movably connected" may be achieved through other means, including but not limited to using any suitable device such as a slider, a chute, or a bearing. It will also be appreciated that the film-applying mechanism 30 may include a suitable actuator (e.g., an electric actuator (motor), a hydraulic actuator, or a pneumatic actuator) to provide a driving force for movement along the first guide rail 11 under the control of a control mechanism.

[0069] The film laminating mechanism 30 is provided to pull the starting end of the film strip to the laminating start position, and then laminating is performed. At the end of laminating, the film strip attached to the target object is cut off from the film roll. This allows the film removal, laminating, and cutting operations to be repeated in a compact cycle, thereby optimizing production cycle time and achieving high-speed production.

[0070] According to some embodiments of the present application, the film-applying mechanism 30 includes a film-taking assembly 32, a rolling assembly 33, and a cutter assembly 34. The film-taking assembly 32 is configured to pull the starting end of the film tape conveyed via the conveying path, and to move forward along the first guide rail 11 to pull the starting end of the film tape to the film-applying starting position. The rolling assembly 33 is configured to press the film tape pulled by the film-taking assembly 32 downward toward the surface of the target object to be film-applied, and to move backward along the first guide rail 11 to roll the film tape onto the surface of the target object to be film-applied. The cutter assembly 34 is configured to cut the film tape when it moves backward along the first guide rail 11 to a predetermined position.

[0071] Please refer to Figures 4 to 9, which are simplified schematic diagrams of the film-applying mechanism of some embodiments of the present application. Figure 4 illustrates the initial state in which the film removal assembly has already pulled the starting end of the film strip. Figure 5 illustrates the state in which the film removal assembly has pulled the starting end of the film strip and pulled it forward to the starting position for film application. Figure 6 illustrates the initial state in which the mold removal assembly releases the starting end of the film strip and the rolling assembly presses the starting end of the film strip toward the surface of the target object to be film-applied. Figure 7 illustrates the state in which the rolling assembly rolls the film strip along a first direction X and applies it to the surface of the target object to be film-applied. Figure 8 illustrates the state in which the cutter assembly cuts the film strip when the film-applying mechanism moves along the first direction to a predetermined position. Figure 9 illustrates the state in which gluing is completed, i.e., after the cutter assembly cuts the film strip, the film-applying mechanism continues to move backward and rolls the remaining portion of the cut film strip, which has not yet been rolled, onto the surface of the target object to complete the gluing. The horizontal dashed lines shown in Figures 4 to 9 represent the surface 400 of the target object to be film-applied.

[0072] The film removal assembly 32 pulls the starting end of the film tape conveyed via the conveying path (as shown in FIG4 ), and moves forward along the first guide rail 11 to pull the starting end of the film tape to the film application starting position (as shown in FIG5 ). The rolling assembly 33 is configured to press the film tape pulled by the film removal assembly 32 downward toward the target object's surface 400 to be film applied (as shown in FIG6 ), and to move backward along the first guide rail 11 to roll the film tape onto the target object's surface 400 to be film applied (as shown in FIG7 ). The cutter assembly 34 is configured to cut the film tape when it moves backward along the first guide rail 11 to a predetermined position (as shown in FIG8 ).

[0073] Herein, the term "forward movement" refers to movement along the first guide rail 11 in the first direction X, wherein the "forward movement" of the starting end of the film strip causes the film strip to be further released from the film preparation mechanism 20. The term "backward movement" refers to movement along the first guide rail 11 in the opposite direction to the "forward movement." In the examples of Figures 4 to 9, "forward" and "backward" are indicated by arrows.

[0074] By integrating the film taking, rolling and cutting components into the same film laminating mechanism, the cumbersome film laminating steps of the film laminating equipment in the related art (i.e., first cutting the film tape and then sticking the film tape on the target object) are improved, and the film tape can be rolled and pasted at the same time, thereby enabling a compact film laminating process and improving film laminating efficiency and quality.

[0075] According to some embodiments of the present application, the film removal assembly 32 includes a first frame 321, an upper clamping plate 322, a lower clamping plate 323 and a first actuator (not shown in the figure), the upper clamping plate 322, the lower clamping plate 323 and the first actuator are connected to the first frame 321, and the first actuator is constructed to change the distance between the upper clamping plate 322 and the lower clamping plate 323 to clamp or release the starting end of the film strip.

[0076] In some embodiments, an "actuator" refers to a device that receives, processes, and executes input signals, thereby changing the state of a system by converting the input signals into mechanical motion or other physical effects. In embodiments of the present disclosure, an "actuator" may include, but is not limited to, electric actuators (motors), hydraulic actuators, and pneumatic actuators.

[0077] The upper and lower clamping plates of the film removal assembly are configured to work together to clamp the film strip, thereby reliably pulling the starting end of the film strip, making it easier to perform subsequent film application steps.

[0078] According to some embodiments of the present application, the rolling assembly 33 includes a second frame 331, a pressure roller 332 and a second actuator, the pressure roller 332 and the second actuator are connected to the second frame 331, the pressure roller 332 is configured to be able to move along a second direction Y that intersects with the surface to be film-affixed of the target object, and the axis of the pressure roller 332 is parallel to a third direction Z, the third direction Z is perpendicular to the first direction X and parallel to the surface to be film-affixed of the target object, and the second actuator is configured to drive the pressure roller 332 to move along the second direction Y toward or away from the surface to be film-affixed of the target object.

[0079] 1 , in some examples, the second direction Y may be a vertical direction. Referring to the embodiment shown in FIG1 , the third direction Z may be a direction perpendicular to the first guide rail on a horizontal plane.

[0080] The pressing roller 332 can be made of any appropriate material. In one example, the pressing roller 332 can be a rubber roller that does not damage the film strip during the process of rolling the film strip.

[0081] Since the pressure roller 332 can apply downward pressure to the film strip relative to the surface of the target object to be pasted, it can be pasted while rolling, reducing the possibility of wrinkles or bubbles in the pasting process, making the pasting surface smooth, and improving the pasting efficiency while improving the pasting quality.

[0082] According to some embodiments of the present application, the cutter assembly 34 is located upstream of the film taking assembly 32 in the conveying direction of the film tape, and when the rolling assembly 33 rolls the film tape, the rolling assembly 33 is located between the cutter assembly 34 and the film taking assembly 32.

[0083] In some examples, the conveying direction of the film tape is formed by a series of conveying rollers. In the example of FIG4 , the film tape is conveyed from the film roll 200 to the film removal assembly 32 along the conveying direction formed by the series of conveying rollers.

[0084] It should be noted that the terms "upstream" and "downstream" used in this disclosure are relative concepts, where "upstream" refers to a position closer to the film roll 200 serving as the source of the film tape in the conveying direction of the film tape, and correspondingly, "downstream" refers to a position farther away from the film roll 200 serving as the source of the film tape in the conveying direction of the film tape.

[0085] By arranging the cutter assembly, the roller assembly and the film taking assembly in sequence from the upstream in the conveying direction of the film strip, the processes of taking the film, laminating while rolling, and cutting the film strip can be carried out smoothly in sequence, thereby improving the film laminating efficiency.

[0086] According to some embodiments of the present application, the film laminating mechanism 30 further includes a first mounting bracket 311 and a second mounting bracket 312 separated from each other, the film taking assembly 32 is movably connected to the first guide rail 11 via the first mounting bracket 311, and the rolling assembly 33 and the cutter assembly 34 are movably connected to the first guide rail 11 via the second mounting bracket 312.

[0087] In the embodiment shown in FIG1 , the first mounting bracket 311 and the second mounting bracket 312 are implemented in the form of a screw, a thread, and a nut, and can be raised and lowered. By rotating the screw, the fit between the thread and the nut causes the nut to move up and down along the axis of the screw. Different movement speeds and torque outputs can be obtained by utilizing the different screw pitches and thread fit tightness. It is understood that the first and second mounting brackets in the embodiments of the present disclosure may also include other reciprocating motion devices in addition to the screw, including but not limited to other embodiments such as a rack and pinion mechanism.

[0088] By arranging the mounting brackets separated from each other, the film taking assembly of the film sticking mechanism can further move relative to other components of the film sticking mechanism, so that the starting end of the film can be flexibly clamped to the film sticking position.

[0089] According to some embodiments of the present application, the first mounting bracket 311 and the second mounting bracket 312 are configured to be movable along a second direction Y intersecting the surface of the target object to be film-applied.

[0090] As shown in FIG. 1 , in some embodiments, the first mounting bracket 311 and the second mounting bracket 312 can be lifted and lowered back and forth along the second direction Y by means of a screw rod.

[0091] Since the first mounting bracket 311 and the second mounting bracket 312 can move along the second direction intersecting the surface to be film-laminated, the height of the film-laminated mechanism relative to the surface to be film-laminated can be adjusted, thereby improving the applicability of the film-laminated device 100.

[0092] According to some embodiments of the present application, the film-sticking mechanism 30 further includes a third mounting bracket, and the film-taking assembly 32, the rolling assembly 33 and the cutter assembly 34 are integrated on the third mounting bracket and movably connected to the first guide rail 11 via the third mounting bracket, and the film-taking assembly 32 is constructed to be able to move relative to the third mounting bracket along the first direction X.

[0093] In one embodiment, the third mounting bracket (not shown in the figure) may include a second guide rail (not shown in the figure). The second guide rail extends along the first direction X, and the film removal assembly 32 is movably connected to the second guide rail so as to be able to reciprocate along the second guide rail. By movably connecting the film removal assembly 32 to the second guide rail of the third mounting bracket, the film removal assembly 32 is able to pull the starting end of the film strip. In one embodiment, the film removal assembly 32 can be implemented in the manner described above and will not be repeated here.

[0094] In some embodiments, the third mounting bracket may further include a third guide rail (not shown in the figure). The third guide rail extends along a second direction Y that intersects the surface of the target object to be film-applied, and the rolling assembly 33 is movably connected to the third guide rail so as to be able to reciprocate along the third guide rail. In some embodiments, the rolling assembly 33 further includes a first connecting portion, a second connecting portion, a pressure roller, and a second actuator (not shown in the figure). The first connecting portion is slidably connected to the third guide rail, the second connecting portion is fixedly connected to the first connecting portion and extends along a third direction Z, the third direction Z is perpendicular to the first direction X and parallel to the surface of the target object to be film-applied, the pressure roller is provided at the second connecting portion, the axis of the pressure roller is parallel to the third direction, and the second actuator is configured to drive the first connecting portion to slide along the third guide rail so as to move the pressure roller toward or away from the surface of the target object to be film-applied.

[0095] By integrating the film taking assembly, rolling assembly and cutter assembly on the third mounting bracket, the integration of the film laminating mechanism is improved, which is conducive to reducing the movable parts on the first guide rail, thereby reducing the structural complexity of the film laminating equipment and reducing the occupied volume of the film laminating equipment.

[0096] 2 to 9 , according to some embodiments of the present application, the film-laminating mechanism 30 further includes a clamping assembly 37 , which is located upstream of the cutter assembly 34 in the conveying direction of the film tape and is configured to clamp the film tape conveyed via the conveying path so that the film assembly 32 can pull the starting end of the film tape.

[0097] In one example, similar to the film removal assembly 32, the clamping assembly 37 may include an upper clamping plate and a lower clamping plate. By controlling the spacing between the upper clamping plate and the lower clamping plate, the film strip can be clamped or released.

[0098] By arranging a clamping assembly upstream of the cutter assembly in the conveying direction of the film tape, after completing one film laminating action and the cutter assembly cuts the film tape, the free starting end of the cut film tape is fixed and clamped in time to prevent the starting end of the film tape from rebounding or shrinking toward the film roll due to the tensioning force of the film preparation mechanism and the elasticity of the film tape itself, so as to prepare the film for the next film laminating action.

[0099] 4 to 9 , according to some embodiments of the present application, the film laminating mechanism 30 further includes at least one conveying roller 35 , and the at least one conveying roller 35 is configured to convey the film tape conveyed via the conveying path to the clamping assembly 37 .

[0100] In one example, the at least one conveying roller 35 may include one or more conveying rollers for conveying the film tape from the film preparation mechanism 20 to a desired location.

[0101] At least one conveying roller 35 is provided on the film laminating mechanism 30 so as to enable the film strip to be conveyed along a desired path to a film laminating position of a target object.

[0102] According to some embodiments of the present application, the at least one conveying roller 35 includes a pair of deflection-correcting rollers 351 .

[0103] In some examples, the correction roller 351 uses the rotation of the roller to change the movement direction of the film belt material, uses the sensor to test the film belt during the production process, and compares the detected film edge information with the initially set film position to determine whether the degree of deflection of the film is within the error range, thereby controlling and adjusting the accuracy of the film.

[0104] At least one pair of deviation-correcting rollers 351 is provided so that the film strip moves along a prescribed path and direction during the film lamination process, which helps to correct deviations or skew that may occur during the film lamination process.

[0105] According to some embodiments of the present application, the film pasting mechanism 30 further includes a positioning detection component 36, which is configured to detect the position of the first end of the target object, the first end of the target object being one of the two ends of the target object in the first direction that is located downstream in the conveying direction of the film tape, and the control mechanism is further configured to determine the film pasting starting position based on the position of the first end of the target object, and the film pasting starting position is located directly above the first end of the target object.

[0106] In some examples, the first end of the target object may be the end of the target object in the first direction that is located downstream in the conveying direction of the film tape. In the examples of Figures 4 to 9, the first end of the target object is the leftmost end of the target object's surface 400 to be film-applied.

[0107] Because the film-applying mechanism includes a positioning detection component, there's no need for separate detection equipment, making the film-applying mechanism compact and significantly saving space and cost. Furthermore, the positioning detection of the film-applying start position is integrated with the film removal, application, and cutting processes, significantly improving the speed and accuracy of film-applying.

[0108] According to some embodiments of the present application, the positioning detection component 36 includes a camera 361 , and the field of view of the camera 361 is directed toward the surface of the target object to be film-applied.

[0109] For example, camera 361 can be a fly-by camera for fast, high-precision image detection. The field of view of camera 361 is toward the surface of the target object to be filmed, and it is used to capture the initial filming edge of the target object and to detect the accuracy and quality of the film after the film is applied.

[0110] Camera 361 can be used to photograph the film-pasting status at the initial film-pasting position, or to photograph the film-pasting edge after the film-pasting is completed to detect the accuracy of the film-pasting. Thus, the actions of rolling, pasting, cutting and detecting can be integrated into the same film-pasting device 100, thereby improving the efficiency and accuracy of the film-pasting.

[0111] According to some embodiments of the present application, the film preparation mechanism 20 includes: a back plate 21; a first reel 22, which is pivotally connected to the back plate 21 and is used to store the film roll 200; and a plurality of conveying rollers 23, which are pivotally connected to the back plate 21 and are located on a conveying path to convey the film tape released from the film roll 200.

[0112] In some examples, the first reel 22 and the plurality of conveying rollers 23 are integrated on the back plate 21 , and the plurality of conveying rollers 23 are arranged around the first reel 22 to form a conveying path for the film tape.

[0113] In the film preparation mechanism 20 , a plurality of conveying rollers 23 are provided around the film roll 200 so that the film tape can be released and transferred along a prescribed path and direction.

[0114] According to some embodiments of the present application, the plurality of conveying rollers 23 include at least one gravity roller 231. The back plate 21 is provided with at least one groove 211 extending in the vertical direction. The at least one gravity roller 231 is movably connected to the back plate 21 via the at least one groove 211. The at least one gravity roller 231 can reciprocate in the vertical direction along the at least one groove 211 to tension the film tape during the conveyance of the film tape.

[0115] Please refer to FIG. 1 . After being pulled out from the film roll 200 , the film strip can sequentially pass through the conveying roller, the gravity roller 231 , and the conveying roller to form an S-shaped conveying path, thereby forming a buffer and tension control for the film strip.

[0116] In some examples, at least one gravity roller 231 can be composed of a roller with a relatively large weight, so that the tension of the film strip can be adaptively adjusted in real time by utilizing its own weight. In other examples, at least one pair of gravity rollers 231 can be connected to a conveyor belt, and the conveyor belt's speed can be controlled by a motor, thereby controlling the tension of the film strip by the gravity roller 231.

[0117] By setting a gravity roller 231 and cooperating with other conveying rollers of the film preparation mechanism 20, the tension of the film tape is controlled on the conveying path of the film tape, and the film tape is tightened to prevent wrinkles or bubbles from occurring in the subsequent film lamination process, thereby improving the film lamination quality.

[0118] According to some embodiments of the present application, the film preparation mechanism 20 further includes a second reel 24, which is pivotally connected to the back plate 21 and is located downstream of the first reel 22 on the conveying path of the film tape for receiving the base paper peeled from the film tape.

[0119] In some examples, the second reel 24 can receive a backing paper peeled from the film tape, such as a release paper. In some examples, the rotation direction of the second reel 24 can be the same as the rotation direction of the first reel 22.

[0120] The second reel 24 for storing the base paper peeled from the film tape is provided on the film preparation mechanism 20, thereby eliminating the need for an additional storage mechanism and making the device compact.

[0121] According to some embodiments of the present application, the frame 10 further includes at least one beam 12, which extends along a third direction Z. The third direction Z is perpendicular to the first direction and parallel to the surface of the target object to be film-applied. The first guide rail 11 is movably connected to the at least one beam 12 so as to be able to move back and forth in the third direction Z.

[0122] In some examples, the cross beams 12 may extend perpendicularly to the at least one first guide rail, respectively. In some examples, referring to FIG1 , the third direction may be a direction indicated by the Z axis.

[0123] 1 , the film preparation mechanism 20 is not movably connected to the crossbeam 12. However, in some embodiments, the film preparation mechanism 20 may be fixedly connected to the first guide rail 11 and movably connected to the crossbeam 12 together with the first guide rail 11. The embodiments of the present application are not limited in this respect.

[0124] The first guide rail 11 can reciprocate along the crossbeam 12 so that the direction of the first guide rail 11 can be adjusted according to the actual incoming direction of the target object, thereby adjusting the direction of film pasting and adaptively improving the accuracy of film pasting. An embodiment of the present application provides a film pasting method, which is applied to the film pasting device 100 of the above embodiment. The film pasting device includes: a frame 10, a film preparation mechanism 20 and a film pasting mechanism 30. The frame 10 includes a first guide rail 11, and the first guide rail 11 extends along a first direction X parallel to the surface of the target object to be pasted with film. The film preparation mechanism 20 is constructed to accommodate the film roll 200 and provide a conveying path along which the film strip is conveyed after being released from the film roll 200. The film pasting mechanism 30 is movably connected to the first guide rail 11. The film pasting method includes:

[0125] Controlling the film laminating mechanism 30 to pull the starting end of the film tape conveyed via the conveying path to the film laminating starting position;

[0126] Controlling the film-sticking mechanism 30 to move along the first guide rail 11 to stick the film strip onto the surface of the target object to be stuck along the first direction X; and

[0127] The film sticking mechanism 30 is controlled to cut the film tape at a predetermined position of the film tape.

[0128] In some examples, the target object may be a battery (eg, a battery pack or a battery module), and the surface of the target object to be coated may be the large surface of the battery. In the embodiment shown in FIG1 , the target object may be placed on the upper surface of the incoming material vehicle 300 .

[0129] It should be understood that a battery is only an example of a target object, and the embodiments of the present disclosure are not limited to being applied to batteries, but can be applied to any appropriate object to be film-coated.

[0130] In the technical solution of the embodiment of the present application, the film strip is pulled to the starting position for film application, and then film application is performed. Finally, film cutting is performed at the end of film application, and the film strip attached to the target object is cut from the film roll. This allows the film removal, film application, and film cutting operations to be repeated in a compact cycle, thereby optimizing production cycle time and achieving high-speed production.

[0131] Please refer to Figures 4 to 9. According to some embodiments of the present application, the film-applying mechanism 30 includes: a film-taking assembly 32, a rolling assembly 33 and a cutter assembly 34.

[0132] Controlling the film pasting mechanism 30 to pull the starting end of the film tape conveyed via the conveying path to the film pasting starting position includes: controlling the film taking assembly 32 to pull the starting end of the film tape conveyed via the conveying path; and controlling the film pasting mechanism 30 to move forward along the first guide rail 11 to pull the starting end of the film tape to the film pasting starting position.

[0133] Controlling the film-sticking mechanism 30 to move along the first guide rail 11 to attach the film strip to the surface of the target object to be film-sticked along the first direction X includes: controlling the rolling assembly 33 to press the film strip pulled by the film-taking assembly 32 downward toward the surface of the target object to be film-sticked; and controlling the film-sticking mechanism 30 to move backward along the first guide rail 11 to roll the film strip along the first direction X onto the surface of the target object to be film-sticked.

[0134] Controlling the film sticking mechanism 30 to cut the film tape at a predetermined position of the film tape includes: controlling the cutter assembly 34 to cut the film tape when it moves backward along the first guide rail 11 to the predetermined position.

[0135] As mentioned above, “forward movement” and “backward movement” can be indicated by, for example, arrows in FIG. 4 to FIG. 9 , and will not be described in detail here.

[0136] By integrating the film taking, rolling and cutting components 34 into the same film laminating mechanism 30, the complicated film laminating steps of the film laminating equipment in the related art (i.e., first cutting the film tape and then sticking the film tape on the target object) are improved, and the film tape can be rolled and pasted at the same time, thereby enabling a compact film laminating process and improving film laminating efficiency and quality.

[0137] Continuing with Figures 4 to 9 , according to some embodiments of the present application, controlling the film removal assembly 32 to pull the starting end of a film strip conveyed along the conveying path includes: controlling the film removal assembly 32 to move rearward along the first guide rail 11 to a first position to grip the starting end of the film strip; and controlling the film removal assembly 32 to move forward along the first guide rail 11 to a second position to pull the film strip to a predetermined length. The predetermined length is the distance between the second position and the first position, with the second position being downstream of the first position in the conveying direction of the film strip.

[0138] In this document, the terms "first position" and "second position" refer to the two positions of the film removal assembly 32 during the film removal process, which are moved along the first guide rail 11. During the film removal process, the film removal assembly 32 moves from the first position to the second position, so that a predetermined length of film strip is released from the film preparation mechanism 20.

[0139] The film taking assembly 32 is movably connected to the mounting bracket 31 of the second guide rail and moves in the film pasting direction, so that the film strip can be pulled along the direction of the target object to be pasted with the film.

[0140] According to some embodiments of the present application, the film applying mechanism 30 further includes a positioning detection assembly 36. The film applying method further includes: controlling the positioning detection assembly 36 to detect the position of the first end of the target object while controlling the mounting bracket 31 to move forward along the first guide rail 11; and determining a film applying start position based on the position of the first end of the target object. The film applying start position is located directly above the first end of the target object in the first direction. The first end of the target object is the downstream end of the target object in the conveying direction of the film strip.

[0141] In some examples, the film application start position is located directly above the first end of the target object in the first direction. The first end of the target object is the downstream end of the target object in the film tape conveying direction. In the examples of Figures 4 to 9, the first end of the target object is the leftmost end of the target object surface 400 to be film applied.

[0142] Because the film-applying mechanism 30 includes a positioning detection assembly 36, there's no need for a separate detection device. This makes the film-applying device 100 compact, significantly saving space and cost. Furthermore, the positioning detection of the film-applying start position is integrated with the film removal, application, and cutting processes, significantly improving the speed and accuracy of film-applying.

[0143] According to some embodiments of the present application, the film sticking method further includes: before controlling the film sticking mechanism 30 to move backward along the first guide rail 11 , controlling the film taking assembly 32 to release the starting end of the film tape.

[0144] Please refer to FIG. 6 , which shows a state in which the film removing assembly 32 releases the starting end of the film tape and the rolling assembly 33 presses the film tape downward toward the surface 400 of the target object to be laminated.

[0145] After the film sticking start position is determined and before the film sticking mechanism 30 moves backward, the starting end of the film strip is released to the starting film sticking position at the first end of the target object, thereby starting film sticking.

[0146] According to some embodiments of the present application, the film laminating mechanism 30 further includes a clamping assembly 37. The clamping assembly 37 is located upstream of the cutter assembly 34 in the conveying direction of the film tape and is configured to clamp the film tape conveyed via the conveying path so that the film removal assembly 32 can pull the starting end of the film tape.

[0147] The film laminating method further includes: controlling the clamping assembly 37 to release the film tape when the rolling assembly 33 rolls the film tape.

[0148] After film lamination and cutting are complete, the clamping assembly 37 is controlled to clamp the free starting end of the cut film strip to prevent the starting end of the film strip from rebounding or retracting toward the film roll 200 due to the tension of the film preparation mechanism 20 and the elasticity of the film strip itself, preparing the film for the next lamination operation. Accordingly, when the rolling assembly 33 rolls the film strip, the clamping assembly 37 is controlled to release the film strip to proceed with film lamination.

[0149] According to some embodiments of the present application, the cutter assembly 34 is located upstream of the film taking assembly 32 in the conveying direction of the film tape, and when the rolling assembly 33 rolls the film tape, the rolling assembly 33 is located between the cutter assembly 34 and the film taking assembly 32. The length from the starting end of the film tape to the predetermined position is equal to the size of the target object in the first direction.

[0150] The film application method further comprises:

[0151] When controlling the cutter assembly 34 to cut the film strip at a predetermined position, controlling the clamping assembly 37 to clamp the film strip;

[0152] After the cutter assembly 34 is controlled to cut the film strip at a predetermined position, the film-applying mechanism 30 is controlled to continue to move backward along the first guide rail 11 so that the rolling assembly 33 rolls the remaining portion of the cut film strip onto the surface 400 of the target object to be film-applied.

[0153] The roller pressing assembly 33 is controlled to be lifted in a direction away from the surface 400 of the target object to be film-applied, so as to allow the film taking assembly 32 to cross the roller pressing assembly 33 and pull a new starting end of the film tape from the clamping assembly 37 .

[0154] 9 shows that after the cutter assembly 34 cuts the film tape, the film-laminating mechanism 30 continues to move backward, so that the rolling assembly 33 rolls the remaining portion of the cut film tape onto the surface 400 of the target object to be film-laminating.

[0155] When the roller assembly 33 reaches the position shown in Figure 9 , the film application to the surface 400 to be applied is complete. Thereafter, the roller assembly 33 can be controlled to rise in a direction away from the surface 400 of the target object to be applied, allowing the film removal assembly 32 to pass over the roller assembly 33 and pull the new starting end of the film strip from the clamping assembly 37, as shown in Figure 4 . The next film application cycle can then be performed.

[0156] After controlling the cutter assembly 34 to cut the film tape, the mounting bracket 31 is controlled to continue to move backward along the first guide rail 11, so that the rolling assembly 33 rolls the remaining part of the cut film tape that has not been rolled onto the surface 400 of the target object to be film-laminated, thereby completing the film-laminated action on the surface 400 of the target object to be film-laminated.

[0157] As a feasible embodiment, a film laminating device 100 is provided for laminating a target object, please refer to Figures 1 to 3. Figure 1 shows an overall schematic diagram of the film laminating device 100 of some embodiments of the present application, Figure 2 shows an overall schematic diagram of the film laminating mechanism 30 of the film laminating device 100 of some embodiments of the present application, and Figure 3 shows a structural schematic diagram of the roller laminating and cutter assembly 34 in the film laminating mechanism 30 of some embodiments of the present application. The film laminating device 100 includes a frame 10, a film preparation mechanism 20, a film laminating mechanism 30 and a control mechanism. The frame 10 includes a first guide rail 11, which extends along a first direction X parallel to the surface of the target object to be film-laminated. The film preparation mechanism 20 is configured to receive a film roll 200 and provide a conveying path along which the film strip is conveyed after being released from the film roll 200. The film application mechanism 30 is movably connected to the first guide rail 11 and is configured to pull the starting end of the film tape conveyed via the conveyor path to the film application starting position, move along the first guide rail 11 to apply the film tape to the target object along a first direction, and cut the film tape at a predetermined position. A control mechanism (not shown) is configured to at least control the operation of the film application mechanism 30 to apply film to the target object.

[0158] As a feasible embodiment, a film pasting method is provided, which is applied to the film pasting device 100 of the above embodiment. The film pasting device includes: a frame 10, a film preparation mechanism 20, and a film pasting mechanism 30. The frame 10 includes a first guide rail 11, and the first guide rail 11 extends along a first direction X parallel to the surface of the target object to be pasted with the film. The film preparation mechanism 20 is configured to receive the film roll 200 and provide a conveying path along which the film tape is conveyed after being released from the film roll 200. The film pasting mechanism 30 is movably connected to the first guide rail 11. The film pasting method includes: controlling the film pasting mechanism 30 to pull the starting end of the film tape conveyed via the conveying path to the film pasting starting position; controlling the film pasting mechanism 30 to move along the first guide rail 11 to attach the film tape to the surface of the target object to be pasted with the film along the first direction X; and controlling the film pasting mechanism 30 to cut the film tape at a predetermined position of the film tape.

[0159] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A film-applying device (100) for applying a film to a target object, comprising: The frame (10) includes a first guide rail (11), wherein the first guide rail (11) extends along a first direction (X) parallel to the surface of the target object to be film-applied; A film preparation mechanism (20) is configured to receive a film roll (200) and provide a conveying path along which the film strip is conveyed after being released from the film roll (200); a film laminating mechanism (30) movably connected to the first guide rail (11) and configured to pull the starting end of the film tape conveyed via the conveying path to a film laminating start position, move along the first guide rail (11) to adhere the film tape to the to-be-laminated surface of the target object along the first direction (X), and cut the film tape at a predetermined position of the film tape; as well as The control mechanism is configured to at least control the film-applying mechanism (30) to operate so as to apply the film to the target object.

2. The film-sticking device (100) according to claim 1, wherein: The film sticking mechanism (30) comprises: a film taking assembly (32) configured to pull the starting end of the film tape conveyed via the conveying path and move forward along the first guide rail (11) to pull the starting end of the film tape to the film application starting position; a rolling assembly (33) configured to press the film tape pulled by the film removal assembly (32) downward toward the surface of the target object to be film-applied, and to move backward along the first guide rail (11) to roll the film tape onto the surface of the target object to be film-applied; and The cutter assembly (34) is configured to cut the film tape when it moves backward along the first guide rail (11) to the predetermined position.

3. The film-sticking device (100) according to claim 2, wherein: The film removal assembly (32) includes a first frame (321), an upper clamping plate (322), a lower clamping plate (323) and a first actuator, wherein the upper clamping plate (322), the lower clamping plate (323) and the first actuator are connected to the first frame (321), and the first actuator is configured to change the spacing between the upper clamping plate (322) and the lower clamping plate (323) to clamp or release the starting end of the film strip.

4. The film-sticking device (100) according to claim 2 or 3, wherein: The rolling assembly (33) includes a second frame (331), a pressure roller (332) and a second actuator, wherein the pressure roller (332) and the second actuator are connected to the second frame (331), the pressure roller (332) is configured to be able to move along a second direction (Y) intersecting the surface to be film-applied of the target object, and the axis of the pressure roller (332) is parallel to a third direction (Z), the third direction (Z) is perpendicular to the first direction (X) and parallel to the surface to be film-applied of the target object, and the second actuator is configured to drive the pressure roller (332) to move along the second direction (Y) toward or away from the surface to be film-applied of the target object.

5. The film-laminating device (100) according to any one of claims 2 to 4, wherein: The cutter assembly (34) is located upstream of the film taking assembly (32) in the conveying direction of the film strip, and when the rolling assembly (33) rolls the film strip, the rolling assembly (33) is located between the cutter assembly (34) and the film taking assembly (32).

6. The film laminating device (100) according to any one of claims 2 to 5, wherein: The film-sticking mechanism (30) further includes a first mounting bracket (311) and a second mounting bracket (312) separated from each other, the film-taking assembly (32) is movably connected to the first guide rail (11) via the first mounting bracket (311), and the rolling assembly (33) and the cutter assembly (34) are movably connected to the first guide rail (11) via the second mounting bracket (312).

7. The film-sticking device (100) according to claim 6, wherein: The first mounting bracket (311) and the second mounting bracket (312) are configured to be movable along a second direction (Y) intersecting the surface of the target object to be film-applied.

8. The film laminating device (100) according to any one of claims 2 to 5, wherein: The film-sticking mechanism (30) further includes a third mounting bracket, the film-taking assembly (32), the rolling assembly (33) and the cutter assembly (34) are integrated on the third mounting bracket and are movably connected to the first guide rail (11) via the third mounting bracket, and the film-taking assembly (32) is constructed to be movable relative to the third mounting bracket along the first direction (X).

9. The film-laminating device (100) according to any one of claims 2 to 8, wherein: The film laminating mechanism (30) further includes a clamping assembly (37), which is located upstream of the cutter assembly (34) in the conveying direction of the film tape and is configured to clamp the film tape conveyed via the conveying path so that the film taking assembly (32) can pull the starting end of the film tape.

10. The film-laminating device (100) according to claim 9, wherein: The film-laminating mechanism (30) further includes at least one conveying roller (35), and the at least one conveying roller (35) is configured to convey the film tape conveyed via the conveying path to the clamping assembly (37).

11. The film-sticking device (100) according to claim 10, wherein: The at least one conveying roller (35) includes a pair of deflection-correcting rollers (351).

12. The film laminating device (100) according to any one of claims 2 to 11, wherein: The film laminating mechanism (30) further includes a positioning detection component (36), wherein the positioning detection component (36) is configured to detect the position of a first end of the target object, wherein the first end of the target object is an end of the target object located downstream in the conveying direction of the film tape, of the two ends of the target object in the first direction (X), and The control mechanism is further configured to determine the film application start position based on the position of the first end of the target object, wherein the film application start position is located directly above the first end of the target object.

13. The film-sticking device (100) according to claim 12, wherein: The positioning detection component (36) comprises a camera (361), the field of view of the camera (361) being directed toward the surface of the target object to be film-applied.

14. The film laminating device (100) according to any one of claims 1 to 13, wherein: The film preparation mechanism (20) comprises: Back plate (21); a first reel (22), the first reel (22) being pivotally connected to the back plate (21) and being used to receive the film roll (200); and A plurality of conveying rollers (23) are pivotally connected to the back plate (21) and are located on the conveying path to convey the film tape released from the film roll (200).

15. The film-laminating device (100) according to claim 14, wherein: The multiple conveying rollers (23) include at least one gravity roller (231), the back plate (21) is provided with at least one groove (211) extending in the vertical direction, the at least one gravity roller (231) is movably connected to the back plate (21) through the at least one groove (211), and the at least one gravity roller (231) can move back and forth in the vertical direction along the at least one groove (211) to tension the film tape during the process of conveying the film tape.

16. The film-laminating device (100) according to claim 14 or 15, wherein: The film preparation mechanism (20) further includes a second reel (24), which is pivotally connected to the back plate (21) and is located downstream of the first reel (22) on the conveying path of the film tape, for receiving the base paper peeled from the film tape.

17. The film-laminating device (100) according to any one of claims 1 to 16, wherein: The frame (10) further includes at least one crossbeam (12), the at least one crossbeam (12) extending along a third direction (Z), the third direction (Z) being perpendicular to the first direction (X) and parallel to the surface of the target object to be film-applied, and the first guide rail (11) being movably connected to the at least one crossbeam (12) so as to be able to reciprocate in the third direction (Z).

18. A film laminating method, applied to a film laminating device (100), the film laminating device comprising: The frame (10) includes a first guide rail (11) extending in a first direction (X) parallel to the surface of the target object to be film-applied; a film preparation mechanism (20) configured to receive a film roll (200) and provide a conveying path along which the film strip is conveyed after being released from the film roll (200); and a film sticking mechanism (30) movably connected to the first guide rail (11), wherein the film sticking method comprises: Controlling the film sticking mechanism (30) to pull the starting end of the film tape conveyed via the conveying path to a film sticking starting position; Controlling the film-sticking mechanism (30) to move along the first guide rail (11) to stick the film strip onto the surface to be stuck of the target object along the first direction (X); and The film sticking mechanism (30) is controlled to cut the film tape at a predetermined position of the film tape.

19. The film-attaching method according to claim 18, wherein: The film-sticking mechanism (30) comprises: a film-taking assembly (32), a rolling assembly (33) and a cutting assembly (34). The controlling of the film sticking mechanism (30) to pull the starting end of the film tape conveyed via the conveying path to the film sticking starting position comprises: controlling the film taking assembly (32) to pull the starting end of the film tape conveyed via the conveying path; and controlling the film sticking mechanism (30) to move forward along the first guide rail (11) to pull the starting end of the film tape to the film sticking starting position; The controlling of the film-sticking mechanism (30) to move along the first guide rail (11) to stick the film strip to the surface of the target object to be stuck along the first direction (X) comprises: controlling the roller pressing component (33) to move the film strip to the target object; The film strip pulled by the film assembly (32) is pressed downward toward the surface of the target object to be film-applied; and the film-applied mechanism (30) is controlled to move backward along the first guide rail (11) to roll the film strip along the first direction (X) onto the surface of the target object to be film-applied; Controlling the film-sticking mechanism (30) to cut the film tape at a predetermined position of the film tape comprises: controlling the cutter assembly (34) to cut the film tape when it moves backward along the first guide rail (11) to the predetermined position.

20. The film-attaching method according to claim 19, wherein: The method of controlling the film taking assembly (32) to pull the starting end of the film tape conveyed via the conveying path comprises: Controlling the film taking assembly (32) to move backward along the first guide rail to a first position to clamp the starting end of the film strip; Controlling the film taking assembly (32) to move forward along the first guide rail to a second position to pull the film tape to release a predetermined length, The predetermined length is a distance between the second position and the first position, and the second position is located downstream of the first position in the conveying direction of the film tape.

21. The film-attaching method according to claim 19 or 20, wherein: The film-sticking mechanism (30) further includes a positioning detection component (36), and the film-sticking method further includes: When controlling the film-sticking mechanism (30) to move forward along the first guide rail (11), controlling the positioning detection component (36) to detect the position of the first end of the target object; The film-sticking starting position is determined based on the position of the first end of the target object, wherein the film-sticking starting position is located directly above the first end of the target object in the first direction (X), and the first end of the target object is the end of the target object in the first direction (X) that is downstream in the conveying direction of the film tape.

22. The film-attaching method according to any one of claims 19 to 21, wherein: The film-attaching method further comprises: Before controlling the film sticking mechanism (30) to move backward along the first guide rail (11), controlling the film taking assembly (32) to release the starting end of the film strip.

23. The film-attaching method according to any one of claims 19 to 22, wherein: The film laminating mechanism (30) further comprises a clamping assembly (37), the clamping assembly (37) being located upstream of the cutter assembly (34) in the conveying direction of the film tape and being configured to clamp the film tape conveyed via the conveying path so as to allow the film taking assembly (32) to pull the starting end of the film tape. The film laminating method further comprises: When the rolling assembly (33) rolls the film tape, the clamping assembly (37) is controlled to release the film tape.

24. The film-attaching method according to claim 23, wherein: The cutter assembly (34) is located upstream of the film taking assembly (32) in the conveying direction of the film strip, and when the rolling assembly (33) rolls the film strip, the rolling assembly (33) is located between the cutter assembly (34) and the film taking assembly (32), and the length from the starting end of the film strip to the predetermined position is equal to the size of the target object in the first direction (X). The film applying method further includes: When controlling the cutter assembly (34) to cut the film tape at the predetermined position, controlling the clamping assembly (37) to clamp the film tape; After controlling the cutter assembly (34) to cut the film strip at the predetermined position, controlling the film-applying mechanism (30) to continue to move backward along the first guide rail (11), so that the rolling assembly (33) rolls the remaining portion of the cut film strip that has not been rolled onto the surface to be film-applied of the target object; The roller pressing assembly (33) is controlled to be lifted in a direction away from the surface of the target object to be film-applied, so as to allow the film taking assembly (32) to cross the roller pressing assembly (33) and pull a new starting end of the film strip from the clamping assembly (37).

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