Film pasting device and battery processing system

Abstract

The utility model provides a film pasting device and a battery processing system, and relates to the technical field of mechanical equipment.The film pasting device comprises a film suction mechanism, the film suction mechanism is provided with an avoiding part, the film suction mechanism is used for pressing a film on a product to be pasted with the film, and the avoiding part is configured to enable the film to be pasted on the product to be pasted with the film when the film suction mechanism presses the film on the product to be pasted with the film; the hot melting part is opposite to a hot melting part on a product to be subjected to film pasting; and the laser film melting mechanism is used for emitting film melting laser, so that when the film suction mechanism presses the film on the product to be subjected to film pasting, the laser film melting mechanism penetrates through the avoiding part and carries out irradiation hot melting according to the hot melting part, and compared with traditional electric heating wire film melting, the yield of the product can be effectively increased.

Description

Technical Field

[0001] This application relates to mechanical equipment technology, and more particularly to a film application device and a battery processing system. Background Technology

[0002] During the manufacturing process, some products require a heat-melting process after film application to ensure a firm adhesion between the film and the product, such as the positive and negative terminals of a battery. A common method for applying the film involves using a turntable to press the film onto the battery, followed by heat fusion via heating wires to firmly adhere the film to the positive and negative terminals.

[0003] However, using heating wire for hot melting can easily cause defects such as wire pulling and melting through, resulting in a low product yield. Utility Model Content

[0004] This application provides a film-applying device and a battery processing system to solve the problem of low product yield caused by existing hot-melt methods.

[0005] On one hand, this application provides a film application device, comprising:

[0006] A film suction mechanism having a clearance portion, the film suction mechanism being used to press a film onto a product to be coated, the clearance portion being configured to be opposite to a heat-sealed portion on the product to be coated when the film suction mechanism presses the film onto the product to be coated;

[0007] A laser melting mechanism is used to emit a melting laser to pass through the avoidance part and irradiate the heat-melting part when the film suction mechanism presses the film onto the product to be laminated.

[0008] In some embodiments of this application, the film suction mechanism includes:

[0009] Two connecting disks, the two connecting disks being arranged opposite to each other;

[0010] At least two support shafts, with each end of the support shaft connected to one of the two connecting discs;

[0011] A film suction plate, which is fixed on the support shaft, is used to suction the film and press the film onto the product to be covered;

[0012] A first driving member is connected to one of the two connecting discs. The first driving member is configured to drive the connecting disc to rotate, causing the film suction plate to rotate to different positions to adsorb the film or press the film onto the product to be covered.

[0013] The film suction plate extends in the same direction as the support shaft, and the length of the film suction plate is less than the length of the support shaft, so as to form the clearance portion between the two ends of the film suction plate and the connecting plate.

[0014] In some embodiments of this application, the suction plate is provided with a plurality of suction holes for adsorbing the membrane, and the suction plate is provided with a flow channel inside, the flow channel being used to connect the suction holes to a vacuum device.

[0015] In some embodiments of this application, the suction plate is provided with suction holes in the middle and at the edges.

[0016] In some embodiments of this application, a connecting pipe is provided inside the support shaft, and the connecting pipe is used to connect the manifold and the vacuum equipment.

[0017] In some embodiments of this application, the film suction mechanism further includes a connecting ring located between the connecting disc and the film suction plate. The connecting ring has a limiting hole, and the support shaft passes through the limiting hole and is fixedly connected to the connecting ring.

[0018] In some embodiments of this application, multiple support shafts are provided and are evenly arranged around the periphery of the connecting disc, and the middle part of the suction plate is connected to the support shafts one by one.

[0019] In some embodiments of this application, an unwinding mechanism is also included, which is located on one side of the film suction mechanism and is used to rotatably connect with the film roll on which the film is wound.

[0020] The suction plate is configured to apply a pulling force to the adsorbed membrane when it is rotated by the connecting disc, so as to pull the membrane to move and unwind the membrane roll.

[0021] In some embodiments of this application, the unwinding mechanism includes:

[0022] Unwinding stand;

[0023] An unwinding shaft is provided on the unwinding bracket. The unwinding shaft is used to be inserted into the film roll and rotatably connected to the film roll.

[0024] In some embodiments of this application, a laser film cutting mechanism is also included, wherein a film cutting gap is formed between adjacent film suction plates, and the laser film cutting mechanism is configured to emit a film cutting laser to the film cutting gap to cut the film.

[0025] In some embodiments of this application, the suction plate has chamfers on both opposite sides so that the width of the film cutting gap gradually increases from the side closer to the support shaft to the side for contacting the film.

[0026] In some embodiments of this application, the laser cutting mechanism includes:

[0027] A laser film cutter, wherein the laser film cutter is used to emit the film cutting laser;

[0028] A film cutting support, wherein the laser film cutter is slidably mounted on the film cutting support;

[0029] A second driving member is connected to the laser cutter and is configured to drive the laser cutter to move along the extension direction of the support shaft.

[0030] In some embodiments of this application, a lifting mechanism is also included, wherein the film suction mechanism is disposed on the lifting mechanism, and the lifting mechanism is configured to drive the film suction mechanism to move up and down so that the film suction mechanism is away from or in the film application position;

[0031] When the film suction mechanism is in the film application position, at least one of the film suction plates presses the film onto the product to be filmed; when the film suction mechanism is in a position away from the film application position, the first driving member drives the connecting disk to rotate, so as to switch the film cutting gap corresponding to the laser film cutting mechanism and the film suction plate corresponding to the film application position.

[0032] In some embodiments of this application, a transport mechanism is also included, which is located below the film suction mechanism and is used to allow the product to be filmed to pass sequentially through the film application position.

[0033] In some embodiments of this application, the laser melting mechanism includes:

[0034] A laser melting machine, wherein the laser melting machine is used to emit the melting laser;

[0035] A melting support, wherein the laser melting machine is slidably mounted on the melting support;

[0036] A third driving member is connected to the laser melting machine and is configured to drive the laser melting machine to move so that the laser melting machine switches to different hot-melting positions.

[0037] On the other hand, this application provides a battery processing system, including a film-applying device as described in any of the first aspects, the film-applying device being used to apply a film to a battery.

[0038] The film-applying device and battery processing system provided in this application include a film suction mechanism and a laser melting mechanism. The laser melting mechanism is located above the film suction mechanism. After the film suction mechanism presses the film onto the product to be coated, the clearance part prevents the film suction mechanism from blocking the heat-melting area of ​​the product. This allows the melting laser emitted by the laser melting mechanism to pass through the clearance part and irradiate the heat-melting area of ​​the product to be coated for melting. Thus, laser melting replaces traditional electric heating wire melting. Melting by laser melting not only accurately positions the heat-melting area and achieves precise heating, but also provides a more uniform heat distribution, reducing the risk of local overheating. This reduces the risk of stringing, melt-through, and other problems during the melting process, effectively improving product yield. Attached Figure Description

[0039] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0040] Figure 1 This is a schematic diagram of the film-applying device provided in the embodiments of this application;

[0041] Figure 2 This is a schematic diagram of the film suction mechanism in the film application device provided in the embodiments of this application;

[0042] Figure 3 A schematic diagram of the connection structure between the film suction mechanism and the lifting mechanism in the film application device provided in the embodiments of this application;

[0043] Figure 4 This is a schematic diagram of the unwinding mechanism in the film application device provided in the embodiments of this application;

[0044] Figure 5 This is a schematic diagram of the laser cutting mechanism and the laser melting mechanism in the film application device provided in the embodiments of this application;

[0045] Figure 6 This is a schematic diagram of the film-cutting state structure of the film-applying device provided in the embodiments of this application;

[0046] Figure 7 This is a schematic diagram of the molten film state structure of the film-applying device provided in the embodiments of this application.

[0047] Explanation of reference numerals in the attached figures:

[0048] 10-Battery, 20-Membrane roll, 100-Suctioning mechanism, 110-Connecting disc, 120-Support shaft, 121-Allowing part, 130-Suctioning plate, 131-Suctioning hole, 132-Cut gap, 140-Connecting ring, 150-First support seat, 160-Second support seat, 170-Drive shaft, 180-Driven shaft, 200-Laser melting mechanism, 210-Laser melting device, 220-Melting support, 230-Melting laser, 300-Unwinding mechanism, 310-Unwinding shaft, 320-Unwinding support, 330-Unwinding roller, 400-Laser cutting mechanism, 410-Laser cutting device, 420-Cut support, 430-Cut laser, 500-Lifting mechanism, 510-First cylinder, 520-Second cylinder, 530-Lifting support, 600-Transporting mechanism.

[0049] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0050] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0051] For some special products, a film needs to be applied to the surface. However, since the film is generally not adhesive, it needs to be heat-fused in certain areas when pressed onto the product surface to fix the film to the product surface.

[0052] Taking batteries as an example, after the film is attached to the battery surface via a turntable, it needs to be pressed firmly during the heat melting process to prevent displacement. Due to this requirement, the heat melting is generally only achieved by pressing the film onto the surface with a heating wire. However, heat melting with a heating wire is prone to uneven heating, which increases the likelihood of problems such as stringing or melting through, thus reducing product yield.

[0053] To avoid the aforementioned problems, this application provides a film-applying device with a clearance portion on the film-applying mechanism. The clearance portion prevents the film suction mechanism from obstructing the heat-melting area of ​​the product to be applied, allowing the melting laser emitted by the laser melting mechanism to pass through the clearance portion and irradiate the heat-melting area of ​​the product to be applied for melting. This replaces traditional electric heating wire melting with laser melting. Melting with a melting laser not only accurately positions the heat-melting area and achieves precise heating, but also provides a more uniform heat distribution, reducing the risk of local overheating. This reduces the risk of stringing, melt-through, and other problems during the melting process, effectively improving product yield.

[0054] It is understood that the film-applying device can be applied not only to battery processing systems as a step in the production line for applying film to batteries, but also to other products with similar film-applying requirements. This embodiment does not limit it in this way.

[0055] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0056] For ease of understanding, the following embodiments will use battery 10 as an example to illustrate the product to be covered with the film.

[0057] For some embodiments of this application, please refer to Figure 1 and Figure 2 As shown, the film application device includes a film suction mechanism 100 and a laser melting mechanism 200.

[0058] The film suction mechanism 100 is used to press the film onto the battery 10, while the laser melting mechanism 200 is used to emit a melting laser 230 to heat the positive and negative electrodes of the battery 10, melt the adhesive material, and make the film stably adhere to the battery 10.

[0059] Specifically, the film suction mechanism 100 has a clearance portion 121, the location of which is adapted to the positive and negative terminals of the battery 10. The laser melting mechanism 200 is disposed above the film suction mechanism 100. After the film suction mechanism 100 presses the film onto the battery 10, the laser melting mechanism 200 emits a melting laser 230, which passes through the clearance portion 121 and irradiates the positive and negative terminals, thereby performing a thermal melting process to stably adhere the film to the battery 10.

[0060] It is understandable that the laser melting mechanism 200 may include common laser emitters such as carbon dioxide lasers, fiber lasers, semiconductor lasers or solid-state lasers, as long as they can emit melting lasers 230 that are compatible with the actual use requirements for thermal melting.

[0061] For example, for battery 10, a carbon dioxide laser can be selected. The carbon dioxide laser mainly includes a gas discharge tube, two mirrors and a power supply. It generates laser by exciting a gas mixture with current. The gas mixture includes carbon dioxide, nitrogen and helium, etc. The generated laser is usually infrared light with a wavelength of 10.6 micrometers.

[0062] Compared to direct hot-melting via heating wire, using a carbon dioxide laser-emitted melting laser 230 to melt the film allows for precise control of the melting process by adjusting the laser power, speed, and focus position of the melting laser 230. This results in more accurate control of the heating area, reducing heat loss to other parts of the battery 10, and providing a more uniform heat distribution, reducing the risk of localized overheating. This lowers the risk of wire pulling and melt-through during the hot-melt process, effectively improving product yield. Furthermore, the hot-melt time is significantly shorter compared to that of heating wire, which helps improve film application efficiency.

[0063] For some embodiments of this application, please refer to Figure 2 As shown, the film suction mechanism 100 includes two connecting discs 110, at least two support shafts 120, a film suction plate 130, and a first driving member.

[0064] Two connecting discs 110 are arranged opposite to each other. The two ends of a support shaft 120 are connected to the two connecting discs 110 respectively, and are supported by the connecting discs 110. A film suction plate 130 is fixed to the support shaft 120 and supported by it. The film suction plate 130 is used to absorb the film and press it firmly onto the product to be coated. Specifically, the shape of the side of the film suction plate 130 is adapted to the shape of the surface of the battery 10 to press the film firmly onto the surface of the battery 10, preventing the film from shifting during the heat-melting process. A first driving member is connected to one of the two connecting discs 110. The first driving member drives the connecting disc 110 to rotate, causing the support shaft 120 and the film suction plate 130 to rotate, allowing the film suction plate 130 to switch between different positions. For example, in one position, the film is absorbed onto the surface of the film suction plate 130, and then it rotates to a position opposite the battery 10. When the distance between the battery 10 and the film suction plate 130 is less than a certain value, the film is pressed firmly onto the battery 10.

[0065] The film suction plate 130 extends in the same direction as the support shaft 120, and the length of the film suction plate 130 is less than the length of the support shaft 120, so as to form a clearance portion 121 between the two ends of the film suction plate 130 and the connecting plate 110. Specifically, there is a gap between adjacent support shafts 120, and after the film suction plate 130 is fixed on the support shaft 120, it will cover part of the gap. However, the length of the film suction plate 130 is less than the length of the support shaft 120, so that the gap at both ends of the film suction plate 130 is not blocked by the film suction plate 130, thus forming a clearance portion 121 through which the melting laser 230 can pass.

[0066] The first driving component can be a common structure that can drive the connecting disk 110 to rotate, such as a motor. This embodiment does not limit it.

[0067] Traditional turntable structures require connection to the motor via a turntable shaft. The turntable shaft blocks the positive and negative terminals of the battery 10, preventing the melting laser 230 from directly irradiating the positive and negative terminals. Therefore, heating wires are usually used for heat melting.

[0068] The suction plate 130 is located at the main body of the battery 10 to fix the film in place. The positive and negative electrodes are located below the clearance portion 121. Please refer to [link / reference needed]. Figure 7 As shown, the fusion laser 230 can directly pass through the avoidance part 121 and irradiate the positive and negative electrodes, which can effectively reduce the obstruction of the fusion laser 230.

[0069] The film suction plate 130 can be set up one or more, and the specific selection can be made according to the processing requirements. When multiple plates are set up, the film application efficiency can be improved. That is, every time the connecting plate 110 rotates, an empty film suction plate 130 can be used to suction the film, while another film suction plate 130 with film can be rotated to a position opposite to the battery 10, so that different film suction plates 130 alternately suction and apply film.

[0070] For example, multiple support shafts 120 are provided and are evenly arranged around the periphery of the connecting disk 110. The middle part of the suction plate 130 is connected to the support shaft 120 in a one-to-one correspondence. After the suction plate 130 is fixed on the support shaft 120, a structure similar to a polygonal turntable can be formed.

[0071] The suction plate 130 and the support shaft 120 can be connected by common methods such as snap-fit ​​or bolt connection. This embodiment does not limit this connection, as long as the connection does not affect the membrane.

[0072] For example, each support shaft 120 can be connected to the suction plate 130 from the side of the suction plate 130 away from its suction film by bolts, and then the support shaft 120 can be fixed to the connecting plate 110 in sequence.

[0073] For example, seven support shafts 120 can be provided, and a suction plate 130 is fixed on each support shaft 120 to form a regular heptagonal turntable structure. This structure can minimize the obstruction of the melting laser 230 by the support shafts 120 and improve the hot melt processing effect.

[0074] Furthermore, in order to improve the support strength, the film suction mechanism 100 also includes a connecting ring 140. The connecting ring 140 can be a circular ring or other closed ring structure. The connecting ring 140 is located between the connecting plate 110 and the film suction plate 130. A limiting hole is provided on the connecting ring 140. The support shaft 120 passes through the limiting hole and is fixedly connected to the connecting ring 140.

[0075] The overall strength of the film suction mechanism 100 can be improved by connecting ring 140, thereby enhancing its stability during use.

[0076] It is understandable that, in order to avoid interference with the battery 10 when the suction plate 130 rotates, the suction mechanism 100 or the component carrying the battery 10 can move up and down.

[0077] For example, the component carrying the battery 10 can move up and down. After the film suction mechanism 100 completes one film application, the component carrying the battery 10 descends and moves away from the film suction mechanism 100. Then, the first driving member drives the film suction plate 130 to rotate. When only one film suction plate 130 is set, the film suction plate 130 is rotated to the corresponding position to absorb the film, and then the film suction plate 130 is driven to rotate to the position opposite to the battery 10. At this time, the component carrying the battery 10 moves toward the film suction plate 130 until the film suction plate 130 presses the film onto the battery 10. Then, the laser melting mechanism 200 is activated to emit the melting laser 230 for thermal melting. If multiple film suction plates 130 are set, by adjusting the angle between adjacent film suction plates 130 to be consistent, the component carrying the battery 10 can directly lift the new battery 10 for film application after the film suction plate 130 rotates by the corresponding angle once. Compared with only one film suction plate 130, the film application efficiency can be improved.

[0078] For example, please see Figure 1 and Figure 3 As shown, the film application device also includes a lifting mechanism 500. The film suction mechanism 100 is connected to the lifting mechanism 500. The lifting mechanism 500 can drive the film suction mechanism 100 to move up and down, so that the film suction mechanism 100 is in the position furthest from the film application position, or in the film application position.

[0079] When the film suction mechanism 100 is in the film application position, at least one film suction plate 130 presses the film onto the battery 10. When the film suction mechanism 100 is in a position away from the film application position, the first drive unit drives the connecting plate 110 to rotate, thereby switching the position of the film suction plate 130. This causes the next film suction plate 130 with film adsorbed to rotate to a position opposite to the battery 10, while the film suction plate 130 without film gradually rotates toward a position where film can be adsorbed. Subsequently, the lifting mechanism 500 lowers the film suction mechanism 100. When it descends to the film application position, the film suction plate 130 opposite to the battery 10 presses the film onto the battery 10, and the laser melting mechanism 200 starts melting the film.

[0080] Furthermore, the film suction mechanism 100 can include a first support base 150 and a second support base 160. The first support base 150 and the second support base 160 are respectively disposed on two connecting plates 110 opposite to each other. One of the two connecting plates 110 is connected to a drive shaft 170, and the other is connected to a driven shaft 180. The drive shaft 170 and the driven shaft 180 are coaxially arranged with the connecting plates 110. The drive shaft 170 is rotatably connected to the first support base 150 and passes through the first support base 150 to be connected to the first driving member. The first driving member drives the connecting plate 110 to rotate. The driven shaft 180 is rotatably connected to the second support base 160. Thus, the first support base 150 and the second support base 160 support the connecting plate 110, the support shaft 120 and the film suction plate 130.

[0081] At this time, the lifting mechanism 500 is connected to the first support base 150 and the second support base 160 to push the film suction mechanism 100 to move up and down.

[0082] Specifically, the lifting mechanism 500 may include a first cylinder 510 and a second cylinder 520. The first cylinder 510 and the second cylinder 520 are supported by a lifting bracket 530. The output ends of the first cylinder 510 and the second cylinder 520 are connected to the bottom of the first support base 150 and the second support base 160, and the two drive the first support base 150 and the second support base 160 to move up and down synchronously.

[0083] Of course, the first cylinder 510 and the second cylinder 520 can also be electric cylinders or other devices that can drive the film suction mechanism 100 to move up and down. This embodiment does not limit them.

[0084] In some embodiments of this application, the suction plate 130 is provided with a plurality of suction holes 131 for adsorbing the membrane, and the suction plate 130 is provided with a flow channel inside, the flow channel connecting adjacent suction holes 131, and the flow channel is also used to connect to a vacuum pumping device.

[0085] When membrane adsorption is required, the manifold is connected to a vacuum pump. The vacuum pump generates negative pressure to adhere the membrane solely to the suction plate 130. After membrane application, the suction plate 130 no longer applies negative pressure to the membrane. At this point, a valve connected to the atmosphere on the suction plate 130 can be used. When releasing the membrane, the connection to the vacuum pump is disconnected, and the valve is opened to allow air to enter, releasing the negative pressure and allowing the suction plate 130 to separate smoothly from the membrane. Alternatively, to increase the membrane release speed, a dedicated air supply device can be added. The manifold is connected to the air supply device via a separate connecting pipe. Valves are installed at the inlets of both connecting pipes or the manifold. This way, during membrane adsorption, the connection to the vacuum pump is maintained, and the connection to the air supply device is disconnected; when releasing the membrane, the connection to the air supply device is maintained, and the connection to the vacuum pump is disconnected.

[0086] The position of the suction hole 131 can be determined according to the actual situation, ensuring that the membrane can be tightly adsorbed on the suction plate 130 and does not shift after folding.

[0087] For example, suction holes 131 are provided in the middle and at the edges of the suction plate 130.

[0088] For example, three rows of suction holes 131 are arranged sequentially in the middle of the suction plate 130. Each row has multiple suction holes 131 arranged at intervals along the extension direction of the suction plate 130. On both sides of the extension direction of the suction plate 130, a row of suction holes 131 is arranged. Of course, on both sides, the suction holes 131 are also arranged at intervals along the extension direction of the suction plate 130.

[0089] Each suction plate 130 needs to be connected to the vacuum equipment via a separate pipeline so that the suction plate 130 can independently suction or release the film. In this case, to facilitate pipeline arrangement, a connecting pipe can be provided inside the support shaft 120. The connecting pipe is used to connect the manifold channel and the vacuum equipment. Of course, when the suction plate 130 and the support shaft 120 are set one-to-one, the connecting pipe in the support shaft 120 is used to connect to the manifold channel in the suction plate 130 connected to it. When a suction plate 130 is set on at least two support shafts 120, the connecting pipe can be provided in only one of the support shafts 120 connected to the suction plate 130.

[0090] Furthermore, since the suction plate 130 rotates with the connecting plate 110, the connecting tube can pass through the driven shaft 180 and extend from the end of the driven shaft 180 away from the connecting plate 110, and then be connected to the vacuum equipment or the gas supply equipment.

[0091] For some embodiments of this application, please refer to Figure 4As shown, the film applicator also includes an unwinding mechanism 300, which is located on one side of the film suction mechanism 100 and is used to rotatably connect with the film roll 20 wound with film.

[0092] When the suction plate 130 is rotated by the connecting plate 110, it applies a pulling force to the adsorbed film, thereby pulling the film to move and unwind the film roll 20. This eliminates the need for additional power to drive the film roll 20 to rotate and unwind the film. The film roll 20 can be automatically unwound by simply moving the suction plate 130 to switch positions, which helps to simplify the overall structure.

[0093] Specifically, the unwinding mechanism 300 includes an unwinding bracket 320 and an unwinding shaft 310. The unwinding shaft 310 is mounted on the unwinding bracket 320 and is inserted into the film roll 20 and rotatably connected to the film roll 20. When the suction plate 130 pulls the film to rotate, the film can pull the film roll 20 to rotate automatically for unwinding. During unwinding, the film is taut due to the pull of the suction plate 130. Therefore, when the suction plate 130 rotates, it can automatically adhere to the next suction plate 130 and be adsorbed by the next suction plate 130 in sequence.

[0094] Of course, in order to guide the film, an unwinding roller 330 can also be set on the unwinding bracket 320. The unwinding roller 330 guides the extension direction of the film, so that the film can be smoothly connected to the film suction mechanism 100 without folding or loosening.

[0095] Multiple unwinding rollers 330 can be provided, and the height of some unwinding rollers 330 on the unwinding bracket 320 or the position of some unwinding rollers 330 in the extension direction of the support shaft 120 can be adjusted so as to adjust the extension direction of the film or the tension of the film by adjusting the position of some unwinding rollers 330, so as to adapt it to the actual situation.

[0096] It is understandable that the unwinding mechanism 300 may not be provided. Instead, the film can be pre-cut, and the film suction plate 130 can directly suction the pre-cut film at the corresponding position each time. This embodiment does not limit this.

[0097] When the unwinding mechanism 300 is used to unwind the film directly so that the film suction mechanism 100 can continuously pick up the film, the film needs to be cut. The traditional film cutting method is to use a metal cutter to cut the film directly. This method requires a lot of space, and the cutter is prone to wear. It needs to be inspected and replaced regularly to ensure the film cutting effect, which is quite troublesome.

[0098] For this, please see Figure 5 As shown, in this embodiment, the film-applying device also includes a laser film-cutting mechanism 400, which can emit a film-cutting laser 430 to cut the film.

[0099] The laser film cutting mechanism 400 only requires initial adjustment of the parameters of the film cutting laser 430 before it can be used continuously without inspection or consumable damage. It is relatively easy to maintain and the film cutting effect is stable. Compared with traditional blade film cutting, it has a significant cost advantage.

[0100] Please see below. Figure 2 and Figure 6 As shown, each suction plate 130 can correspond to one battery 10, that is, the width of each suction plate 130 can be adjusted to match the width of the film required by the battery 10. At this time, a film cutting gap 132 is formed between adjacent suction plates 130. The film cutting laser 430 emitted by the laser film cutting mechanism 400 can irradiate the film cutting gap 132 to cut the film.

[0101] Specifically, after the first driving component rotates the film by a preset angle each time, it changes the film cutting gap 132 opposite to the laser film cutting mechanism 400. This allows the connecting disk 110 to rotate by a preset angle each time, so that an empty suction plate 130 can absorb the film. The film cutting gap 132 between the suction plate 130 and the previous suction plate 130 with film is opposite to the laser film cutting mechanism 400. At the same time, a suction plate 130 with film and the film has been cut is opposite to the battery 10, thereby effectively saving production cycle time.

[0102] It is understandable that the laser film cutting mechanism 400 can be located above or to the side of the film suction mechanism 100, as long as the film cutting laser 430 can successfully reach the film cutting gap 132 to cut the film.

[0103] Furthermore, the laser cutting mechanism 400 includes a laser cutter 410, a cutting support 420, and a second drive component.

[0104] The laser film cutter 410 is mounted on the film cutting bracket 420 and is slidably connected to the film cutting bracket 420. The laser film cutter 410 is used to emit a film cutting laser 430, which can be a common laser such as a carbon dioxide laser, fiber laser, semiconductor laser or solid-state laser, as long as it can effectively cut the film. This embodiment does not limit it.

[0105] The second driving member is connected to the laser cutter 410. The second driving member can drive the laser cutter 410 to move along the extension direction of the support shaft 120 to adjust the position of the laser cutter 410.

[0106] The connection between the laser film cutter 410 and the film cutting support 420 can be a combination of a slide rail and a slider, or other common connection methods. This embodiment does not limit the connection method.

[0107] The second driving component can be a linear motor or other structure that can drive the laser cutting machine 410 to move; this embodiment does not limit it.

[0108] In addition, to facilitate film cutting, chamfers can be provided on both sides of the suction plate 130. The chamfers can be located only on the side of the suction plate 130 used for film suction. This allows the film cutting gap 132 to form a funnel-shaped opening on that side, that is, the opening is larger closer to the film end, which facilitates the laser film cutter 410 to cut the film.

[0109] The chamfer can be set as an arc chamfer, and the connection with the suction plate 130 is smooth to avoid scratching the film.

[0110] For some embodiments of this application, please refer to Figure 5 As shown, the laser melting mechanism 200 includes a laser melting device 210, a melting support 220, and a third driving member. The laser melting device 210 is mounted on the melting support 220 and is slidably connected to the melting support 220. The third driving member can drive the laser melting device 210 to move, allowing the laser melting device 210 to be switched above different melting points.

[0111] Specifically, instead of setting up one laser melting machine 210 for the positive electrode and one for the negative electrode, the laser melting machine 210 can be used to heat melt one of the positive and negative electrodes first, and then driven by the third driving component to move above the other electrode for heat melting.

[0112] Of course, a laser melting machine 210 can also be set on each side of the battery 10 to perform heat melting treatment on the positive and negative electrodes of the battery 10 at the same time. In this case, the third driving component can be used to adjust the position of the laser melting machine 210 to adapt it to different models of batteries 10, or batteries 10 with different positions of positive and negative electrodes.

[0113] It is understood that the third driving component can be a linear motor or other device that can drive the laser melting machine 210 to move in one or more directions.

[0114] For example, the third driving component can consist of two linear motors with different directions of movement, thereby driving the laser melting machine 210 to move in two directions.

[0115] In some embodiments of this application, the film-applying device further includes a transport mechanism 600, which is used to transport the battery 10 so that the battery 10 passes through the film-applying position in sequence for film application. This eliminates the need for manual placement of the battery 10 at the film-applying position each time, or removal of the film-applying battery 10 from the film-applying position, thereby improving the convenience of processing.

[0116] It is understandable that the conveying mechanism can be a common structure such as a conveyor belt, as long as it can transport the battery 10 smoothly and allow the battery 10 to stay for a certain period of time after reaching the film application position for film application.

[0117] In order to ensure that the battery 10 does not shift during the film application process, a clamp can be added at the film application position, or a separate clamp can be set for each battery 10 in the conveying mechanism. This embodiment does not limit this.

[0118] During the processing, when a battery 10 is transported to the film-applying position, the lifting mechanism 500 drives the film-suction mechanism 100 to descend to the film-applying position. At this time, the film-suction plate 130 opposite to the battery 10 presses the film it has attracted onto the battery 10. The laser melting mechanism 200 starts simultaneously to perform the melting process. In order to save production cycle time, the laser cutting mechanism 400 can also start to cut the film at the film-applying position. When the film-suction mechanism 100 moves up to the position furthest from the battery 10, it is only necessary to rotate the connecting plate 110 so that the film-suction plate 130, which should be suctioned in sequence, can attract the film and then immediately descend, which can effectively improve the film-applying efficiency. While the film-suction mechanism 100 is rising, the battery 10 that has been film-applied can be transported away from the film-applying position, and the next battery 10 that has not been film-applied will move to the film-applying position to wait for film application. Multiple steps can be performed simultaneously, which can effectively improve the film-applying efficiency.

[0119] In addition, no additional sensors are needed during the film application process. Only the interval between the activation of the first driving component, the laser film cutting mechanism 400, and the laser film melting mechanism 200, as well as the interval between the transport mechanism 600 advancing the battery 10 a fixed distance, need to be set, which can greatly simplify the structure of the film application device.

[0120] When the laser film cutting mechanism 400 is started to cut the film while the suction plate 130 is in the film application position, the laser film cutting mechanism 400 can be positioned above the suction mechanism 100.

[0121] At this time, the laser film cutting mechanism 400 is mainly used to cut the film in the corresponding area of ​​the suction plate 130, while the laser melting mechanism 200 is used to melt the film through the avoidance part 121. The corresponding areas of the two are different. In order to facilitate installation, the laser film cutting mechanism 400 and the laser melting mechanism 200 can be arranged in an up-down relationship, that is, the film cutting bracket 420 can be fixed on the melting bracket 220.

[0122] This application also provides a battery processing system, which includes the film application device in the above embodiments, the film application device being used to apply a film to the battery 10.

[0123] Of course, the film-applying device in the above embodiments can also be used to apply film to other products that have similar film-applying needs, and can be set up as a processing component in the processing system of the corresponding product to be applied.

[0124] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0125] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A film-applying device, characterized in that, include: A film suction mechanism (100) having a clearance portion (121) for pressing a film onto a product to be covered, the clearance portion (121) being configured to face a heat-sealing portion on the product to be covered when the film suction mechanism (100) presses the film onto the product to be covered; A laser melting mechanism (200) is used to emit a melting laser (230) to pass through the avoidance part (121) and irradiate the hot-melt part when the film suction mechanism (100) presses the film onto the product to be filmed.

2. The film-applying device according to claim 1, characterized in that, The film suction mechanism (100) includes: Two connecting disks (110) are arranged opposite to each other; At least two support shafts (120), the two ends of which are respectively connected to two connecting discs (110); A film suction plate (130) is fixed on the support shaft (120). The film suction plate (130) is used to adsorb the film and press the film onto the product to be covered. A first driving member is connected to one of the two connecting discs (110). The first driving member is configured to drive the connecting disc (110) to rotate, causing the film suction plate (130) to rotate to different positions to adsorb the film or press the film onto the product to be covered. The film suction plate (130) extends in the same direction as the support shaft (120), and the length of the film suction plate (130) is less than the length of the support shaft (120), so as to form the clearance portion (121) between the two ends of the film suction plate (130) and the connecting plate (110).

3. The film-applying device according to claim 2, characterized in that, The suction plate (130) is provided with a plurality of suction holes (131) for adsorbing the membrane, and the suction plate (130) is provided with a flow channel inside, which is used to connect the suction holes (131) to the vacuum equipment.

4. The film-applying device according to claim 3, characterized in that, The suction plate (130) is provided with suction holes (131) in the middle and at the edges.

5. The film-applying device according to claim 3, characterized in that, The support shaft (120) is provided with a connecting pipe inside, which is used to connect the manifold and the vacuum equipment.

6. The film-applying device according to claim 2, characterized in that, The film suction mechanism (100) further includes a connecting ring (140), which is located between the connecting disk (110) and the film suction plate (130). The connecting ring (140) is provided with a limiting hole, and the support shaft (120) passes through the limiting hole and is fixedly connected to the connecting ring (140).

7. The film-applying device according to claim 2, characterized in that, Multiple support shafts (120) are provided and are evenly arranged around the periphery of the connecting disc (110). The middle part of the suction plate (130) is connected to the support shafts (120) one by one.

8. The film-applying device according to claim 7, characterized in that, It also includes an unwinding mechanism (300), which is located on one side of the film suction mechanism (100) and is used to rotatably connect with the film roll (20) on which the film is wound; The suction plate (130) is configured to apply a pulling force to the adsorbed film when it is rotated by the connecting disc (110), so as to pull the film to move and rotate the film roll (20) for unwinding.

9. The film-applying device according to claim 8, characterized in that, The unwinding mechanism (300) includes: Unwinding support (320); An unwinding shaft (310) is provided on the unwinding bracket (320). The unwinding shaft (310) is used to be inserted into the membrane roll (20) and rotatably connected to the membrane roll (20).

10. The film-applying device according to claim 8, characterized in that, It also includes a laser film cutting mechanism (400) forming a film cutting gap (132) between adjacent film suction plates (130), the laser film cutting mechanism (400) being configured to emit a film cutting laser (430) to the film cutting gap (132) to cut the film.

11. The film-applying device according to claim 10, characterized in that, The suction plate (130) has chamfers on both sides so that the width of the cutting gap (132) gradually increases from the side near the support shaft (120) to the side that contacts the film.

12. The film-applying device according to claim 10, characterized in that, The laser cutting mechanism (400) includes: A laser film cutter (410) for emitting the film cutting laser (430); A film cutting support (420) is provided, and the laser film cutter (410) is slidably disposed on the film cutting support (420); A second drive member is connected to the laser cutter (410) and is configured to drive the laser cutter (410) to move along the extension direction of the support shaft (120).

13. The film-applying device according to claim 10, characterized in that, It also includes a lifting mechanism (500), on which the film suction mechanism (100) is disposed. The lifting mechanism (500) is configured to drive the film suction mechanism (100) to move up and down so that the film suction mechanism (100) is away from or in the film application position. When the film suction mechanism (100) is in the film application position, at least one of the film suction plates (130) presses the film onto the product to be filmed; when the film suction mechanism (100) is in a position away from the film application position, the first driving member drives the connecting disk (110) to rotate, so as to switch the film cutting gap (132) corresponding to the laser film cutting mechanism (400) and the film suction plate (130) corresponding to the film application position.

14. The film-applying device according to claim 13, characterized in that, It also includes a transport mechanism (600) located below the film suction mechanism (100), which is used to make the product to be filmed pass through the film application position in sequence.

15. The film-applying device according to any one of claims 1-14, characterized in that, The laser melting mechanism (200) includes: A laser melting machine (210) for emitting the melting laser (230); A fusion casting support (220) is provided, and the laser fusion casting device (210) is slidably disposed on the fusion casting support (220); A third driving member is connected to the laser melting machine (210) and is configured to drive the laser melting machine (210) to move so that the laser melting machine (210) switches to different hot-melting positions.

16. A battery processing system, characterized in that, The device includes the film application apparatus according to any one of claims 1-15, the film application apparatus being used to apply a film to the battery (10).

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