Coating scraping device and coating machine

Abstract

The utility model discloses a coating scraping device and a coating machine. The coating scraping device comprises a machine base, a foil belt conveying mechanism, a scraping coating mechanism and a slurry suction mechanism. The machine base is provided with a slurry scraping station. The foil belt conveying mechanism is arranged on the machine base and can drive the foil belt to move and pass through the slurry scraping station. The blade coating mechanism is arranged on the machine base and comprises a scraping head and a driving assembly, the scraping head is provided with a containing groove, a scraping blade is arranged on the edge, close to a scraping station, of a groove opening of the containing groove, and the driving assembly is used for driving the scraping head to be close to or away from the scraping station; the pulp suction mechanism is arranged on the machine base and used for sucking the containing groove. According to the coating scraping device, coatings at the head section and the tail section of a coating area on a foil tape can be scraped, coatings at other positions on the foil tape can be avoided, so that the coatings on the foil tape are uniform in thickness and tidy in edge, the scraped coating slurry enters the containing groove and then is sucked away through the slurry suction mechanism, the scraped slurry is not prone to being accumulated at the position of the slurry scraping head, and the quality of produced pole pieces is improved.

Description

Technical Field

[0001] The utility model relates to the field of pole piece production, in particular to a coating scraping device and a coating machine. Background Art

[0002] During the production of battery pole pieces, a coating machine is used to intermittently apply slurry to a conveying foil strip, forming multiple coating zones along its length. The coated foil strip is then dried to form pole piece strips, which are then cut into individual pole pieces in the bare foil zones. However, existing coating processes can easily lead to defects such as thinning of the coating and irregular edges at the beginning and end of the coated area when coating the foil strip. This can lead to problems such as lithium deposition at the beginning and end of the coating during battery use.

[0003] The existing solution to this problem is to remove the coating from the edges of the foil coating area. One approach is to pre-apply adhesive tape to the foil, then remove the tape after the foil is coated with slurry and dried, thereby removing the coating from the edges of the foil. Another approach is to use a linear drive in conjunction with a slurry scraper to intermittently scrape the coating from the coated area before drying. However, the scraped slurry has a high viscosity and easily adheres to the slurry scraper, making it difficult to discharge smoothly. This can easily affect the quality of the electrode during continuous production. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a coating scraping device, which can prevent scraped slurry from remaining on the scraping head, thereby improving the quality of the produced electrode.

[0005] The utility model also provides a coating machine with the coating scraping device.

[0006] According to the first embodiment of the present invention, a coating scraping device includes a machine base, a foil conveying mechanism, a coating mechanism, and a slurry suction mechanism. The machine base has a slurry scraping station; the foil conveying mechanism is disposed on the machine base, and is capable of driving the foil to move through the slurry scraping station; the coating mechanism is disposed on the machine base, and includes a slurry scraping head and a drive assembly. The slurry scraping head is provided with a receiving groove, and a scraping blade is provided at the edge of the groove near the slurry scraping station. The drive assembly is used to drive the slurry scraping head toward or away from the slurry scraping station; the slurry suction mechanism is disposed on the machine base, and is used to suck the slurry from the receiving groove.

[0007] The coating scraping device according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: the foil conveying mechanism conveys the foil along the length direction, and the driving component of the scraping mechanism can intermittently drive the scraping head close to or away from the scraping station, so as to scrape the coating of the head and tail sections of the coating area on the foil, and avoid the coating at other positions on the foil, so that the coating thickness on the foil is uniform and the edges are neat, and the scraped coating slurry enters the receiving tank and is then sucked away by the slurry suction mechanism, so that the scraped slurry is not easily accumulated at the scraping head, thereby improving the quality of the produced electrode.

[0008] According to some embodiments of the present invention, the slurry suction mechanism includes a suction pump and a suction pipe, one end of the suction pipe extends into the accommodating tank, and the suction pump is used to suck the suction pipe.

[0009] According to some embodiments of the present invention, the slurry suction mechanism further includes a slurry storage tank, the other end of the suction pipe is connected to the upper part of the slurry storage tank, and the suction end of the suction pump is connected to the upper part of the slurry storage tank.

[0010] According to some embodiments of the present invention, a foil support plate is further included, wherein the foil support plate is arranged on the machine base, and the foil support plate and the squeegee head are respectively placed on opposite sides of the squeegee station.

[0011] According to some embodiments of the present invention, a dilution mechanism is further included, wherein the dilution mechanism is provided with a liquid injection end, and the liquid injection end extends into the receiving tank. The dilution mechanism can inject diluent into the receiving tank through the liquid injection end.

[0012] According to some embodiments of the present invention, the dilution mechanism includes a diluent storage tank, an injection tube and a flow control valve, one end of the injection tube is connected to the diluent storage tank, the other end of the injection tube is located in the accommodating tank, the other end of the injection tube forms the injection end, the flow control valve is arranged on the injection tube, and the diluent storage tank is higher than the injection end.

[0013] According to some embodiments of the present invention, the slurry suction mechanism is provided with a suction end, the suction end of the slurry suction mechanism extends into the accommodating groove, and the scraping blade, the liquid injection end and the suction end are arranged in sequence along the up and down direction.

[0014] According to some embodiments of the present invention, the driving assembly includes a linear drive and a connecting frame, the linear drive is connected to the connecting frame and is used to drive the connecting frame to move, and the scraping head is connected to the connecting frame; the scraping head is rotatably connected to the connecting frame and can swing and adjust the angle relative to the scraping station.

[0015] According to some embodiments of the present invention, the scraping mechanism further includes an adjusting frame, which is connected to the machine base in an adjustable position along the width direction of the foil conveying mechanism, and the linear drive is connected to the adjusting frame.

[0016] According to the second embodiment of the present invention, the coating machine comprises a coating mechanism and the above-mentioned coating scraping device. The coating mechanism is used to apply a coating to the foil; wherein the coating mechanism and the coating scraping mechanism are arranged in sequence along the conveying direction of the foil conveying mechanism.

[0017] The coating machine according to the embodiment of the second aspect of the present invention has at least the following beneficial effects: due to the coating scraping device, the thickness of the coating on the foil strip can be made more uniform, thereby improving the quality of the produced pole pieces.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a front view schematic diagram of a coating machine according to an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a scraping mechanism according to an embodiment of the present invention;

[0022] Figure 3 It is a side view schematic diagram of a partial structure of a coating machine according to an embodiment of the present invention.

[0023] Reference numerals:

[0024] Machine base 100, slurry scraping station 110;

[0025] Foil conveying mechanism 200;

[0026] Scraping mechanism 300, scraping head 310, receiving groove 311, scraping blade 312, driving assembly 320, linear drive 321, connecting frame 322, adjusting frame 330;

[0027] Slurry suction mechanism 400, suction end 401, suction pump 410, suction pipe 420, slurry storage tank 430;

[0028] Foil tape support plate 500;

[0029] Dilution mechanism 600, injection end 601, diluent storage tank 610, injection pipe 620, flow control valve 630;

[0030] Coating mechanism 700. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 present invention.

[0033] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Reference Figures 1 to 3 , which is a coating scraping device according to an embodiment of the present invention, comprises a machine base 100, a foil conveying mechanism 200, a scraping mechanism 300 and a slurry suction mechanism 400. The machine base 100 has a scraping station 110; the foil conveying mechanism 200 is arranged on the machine base 100, and can drive the foil to move through the scraping station 110; the scraping mechanism 300 is arranged on the machine base 100, and comprises a scraping head 310 and a driving assembly 320. The scraping head 310 is provided with a receiving groove 311, and a scraping blade 312 is provided at the edge of the groove of the receiving groove 311 near the scraping station 110. The driving assembly 320 is used to drive the scraping head 310 to move closer to or away from the scraping station 110; the slurry suction mechanism 400 is arranged on the machine base 100, and is used to suck the receiving groove 311.

[0036] The foil conveying mechanism 200 conveys the foil along the length direction, and the driving component 320 of the coating mechanism 300 can intermittently drive the scraping head 310 close to or away from the scraping station 110, so as to scrape off the coating at the head and tail sections of the coating area on the foil, and avoid the coating at other positions on the foil, so that the coating thickness on the foil is uniform and the edges are neat. The scraped coating slurry enters the containing tank 311 and is then sucked away by the slurry suction mechanism 400, so that the scraped slurry is not easily accumulated at the scraping head 310, thereby improving the quality of the produced electrode.

[0037] Specifically, the foil conveying mechanism 200 includes a plurality of conveying rollers, through which the foil is tensioned and conveyed along the length direction of the foil. It is conceivable that the foil conveying mechanism 200 can also adopt other structures, such as a conveyor belt or a conveyor line.

[0038] In the embodiment, the slurry suction mechanism 400 includes a suction pump 410 and a suction pipe 420. One end of the suction pipe 420 extends into the receiving tank 311, and the suction pump 410 is used to suction the suction pipe 420. When the suction pump 410 is activated, the slurry suction mechanism 400 provides a suction force to the suction pipe 420, thereby sucking the slurry in the receiving tank 311 through the suction pipe 420. The structure is simple and easy to implement.

[0039] In an embodiment, the slurry suction mechanism 400 further includes a slurry storage tank 430. The other end of the suction pipe 420 is connected to the upper portion of the slurry storage tank 430, and the suction end of the suction pump 410 is connected to the upper portion of the slurry storage tank 430. When the suction pump 410 is started, it sequentially passes through the internal space of the slurry storage tank 430 and the suction pipe 420 to suck the slurry in the receiving groove 311 of the scraping head 310. The sucked slurry first enters and is stored in the lower portion of the slurry storage tank 430 through the suction pipe 420. The air in the upper space of the slurry storage tank 430 then enters the suction pump 410, thereby continuously sucking the slurry and preventing the slurry from accidentally entering the suction pump 410 and causing damage to the suction pump 410. After the slurry stored in the slurry storage tank 430 reaches a certain amount, the slurry in the slurry storage tank 430 can be recovered or discarded.

[0040] Specifically, to facilitate the entry of the sucked slurry into the slurry storage tank 430 through the suction pipe 420, the height of the slurry storage tank 430 is lower than the height of the scraper head 310. To reduce the risk of slurry entering the suction pump 410, the height of the suction pump 410 is higher than the height of the slurry storage tank 430. It is understood that since the suction pump 410 provides suction force, the height of the slurry storage tank 430 and the suction pump 410 can also be set at other heights, and those skilled in the art can make specific configurations based on actual needs.

[0041] It is conceivable that the slurry suction mechanism 400 can also be other structures. For example, the slurry suction mechanism 400 includes a suction pump 410, a filter and a suction pipe 420. The suction end 401 of the suction pump 410 sucks the slurry at the scraping head 310 through the suction pipe 420, and the filter is arranged at the suction pipe 420 to filter out the slurry in the air in the suction pipe 420; or the slurry suction mechanism 400 can be other structures with suction capabilities, and those skilled in the art can make specific configurations according to actual needs.

[0042] In this embodiment, a foil support plate 500 is further included. The foil support plate 500 is mounted on the machine base 100 and is positioned on opposite sides of the squeegee head 310 relative to the squeegee station 110. When the squeegee head 310 approaches the foil to remove the coating slurry, the scraping blade 312 may press down too far and scratch the foil. Therefore, the foil support plate 500 limits the downward pressure of the scraping blade 312, thereby reducing the risk of the squeegee head 310 overpressing and scratching the foil, resulting in a higher-quality electrode. Specifically, the foil support plate 500 is a flat plate.

[0043] In the embodiment, a dilution mechanism 600 is further included. The dilution mechanism 600 is provided with a liquid injection end 601, which extends into the receiving tank 311. The dilution mechanism 600 can inject a diluent into the receiving tank 311 through the liquid injection end 601. Since the slurry scraped off by the scraping blade 312 has a high viscosity, the slurry suction mechanism 400 directly sucking the slurry in the receiving tank 311 may still cause slurry residue. Therefore, a certain amount of diluent is injected into the receiving tank 311 through the liquid injection end 601 of the dilution mechanism 600. After the dilution dilutes the scraped slurry, the viscosity of the slurry decreases, making it easier for the slurry suction mechanism 400 to suck it away from the scraping head 310. In addition, since the slurry suction mechanism 400 maintains a negative pressure in the receiving tank 311, the dilution is not likely to fall onto the foil strip.

[0044] In an embodiment, the dilution mechanism 600 includes a diluent storage tank 610, an injection pipe 620, and a flow control valve 630. One end of the injection pipe 620 is connected to the diluent storage tank 610, and the other end of the injection pipe 620 is located in the receiving tank 311. The other end of the injection pipe 620 forms an injection end 601. The flow control valve 630 is disposed on the injection pipe 620, and the diluent storage tank 610 is higher than the injection end 601. The diluent storage tank 610 is filled with diluent. When the dilution mechanism 600 is used, the flow control valve 630 is opened, allowing the diluent in the diluent storage tank 610 to flow through the injection pipe 620 under the action of gravity into the receiving tank 311 of the scraping head 310 to dilute the scraped slurry. When the flow rate of the diluent needs to be adjusted, the flow rate of the diluent can be adjusted by adjusting the flow control valve 630 to adapt to different usage requirements.

[0045] It is conceivable that the dilution mechanism 600 can also be other structures. For example, the dilution mechanism 600 includes a liquid pump, an injection pipe 620 and a dilution liquid storage tank 610. The liquid pump can draw the dilution liquid from the dilution liquid storage tank 610 and inject it into the receiving groove 311 of the scraping head 310 through the injection pipe 620 to dilute the slurry. It is understandable that the structure of the dilution mechanism 600 can also be other structures with injection function, and those skilled in the art can make specific configurations according to actual needs.

[0046] In the embodiment, the slurry suction mechanism 400 is provided with a suction end 401, which extends into the receiving tank 311. The scraping blade 312, the liquid injection end 601, and the suction end 401 are arranged in sequence in the vertical direction. After the slurry scraped by the scraping blade 312 enters the receiving tank 311, since the liquid injection end 601 is located between the suction end 401 and the scraping blade 312, the sucked slurry can be diluted by the diluent when passing near the liquid injection end 601. Therefore, all the scraped slurry can be diluted and sucked away, making the suction process smoother. In addition, the layout of the suction end 401 and the liquid injection end 601 can reduce the risk of the diluent flowing toward the foil.

[0047] In an embodiment, the drive assembly 320 includes a linear drive 321 and a connecting frame 322. The linear drive 321 is connected to the connecting frame 322 and is used to drive the connecting frame 322 to move. The scraping head 310 is connected to the connecting frame 322. Specifically, the linear drive 321 adopts a cylinder, and the scraping head 310 is driven by the linear drive 321 to move closer to or away from the foil relative to the machine base 100. The structure is relatively simple. The scraping head 310 can be slidably set on the machine base 100 through a slide rail or a guide column and guide sleeve structure, and cooperate with the linear drive 321 to drive it closer to or away from the foil. The scraping head 310 can also be directly installed on the connecting frame 322 and driven closer to or away from the foil by the linear drive 321. It is conceivable that in other embodiments, the linear drive 321 can also adopt a structure that outputs linear power such as a linear motor or an electric cylinder.

[0048] In an embodiment, the scraping mechanism 300 further includes an adjustment frame 330, which is connected to the base 100 in an adjustable position along the width direction of the foil conveying mechanism 200, and the linear drive 321 is connected to the adjustment frame 330. The scraping mechanism 300 can adjust the position of the slurry scraping head 310 relative to the foil conveying mechanism 200 along the width direction through the adjustment frame 330, so that the slurry scraping head 310 can scrape the coating area on the foil at different positions to adapt to the requirements of pole pieces with different scraping slurry shapes.

[0049] Specifically, the adjustment frame 330 may be connected to the machine base 100 in a sliding manner along the width direction via a guide post and guide sleeve structure, and a lead screw nut may be provided on the adjustment frame 330, and a lead screw and a rotary driver may be provided on the machine base 100. The lead screw and the lead screw nut cooperate, and the rotary driver drives the lead screw to rotate, thereby driving the adjustment frame 330 to adjust its position along the width direction. Alternatively, the adjustment frame 330 may be connected to the machine base 100 in a sliding manner along the width direction via a slide rail and slider structure, and the adjustment frame 330 may be driven to adjust its position along the width direction via an electric cylinder or linear motor, ultimately adjusting the position of the squeegee head 310. It is understood that there are many structures for adjusting the position of one component relative to another component along a certain direction, and those skilled in the art can configure the structure according to actual conditions.

[0050] In the embodiment, the squeegee head 310 is rotatably connected to the connecting frame 322 and can be swung to adjust the angle relative to the squeegee station 110. By rotating and adjusting the angle of the squeegee head 310 relative to the connecting frame 322, the angle between the scraping blade 312 of the squeegee head 310 and the foil strip can be adjusted. Therefore, the angle of the squeegee head 310 can be adjusted according to actual production needs, so that the squeegee head 310 can better scrape the slurry on the foil strip.

[0051] Specifically, the scraping head 310 can be pivotally connected to the connecting frame 322, and a threaded hole is provided on the connecting frame 322, which is screwed to the threaded hole by a screw. When the screw is tightened, the angle position of the scraping head 310 can be abutted and locked. When the screw is loosened, the angle of the scraping head 310 can be rotated to adjust the angle position of the scraping head 310 relative to the connecting frame 322; or the scraping head 310 can be pivotally connected to the connecting frame 322, an arc-shaped hole is provided on the connecting frame 322, and a through hole is provided on the scraping head 310, and the through hole and the arc-shaped hole pass through. A bolt-nut pair is provided, and when the bolt-nut pair is tightened, the angle of the scraping head 310 can be locked, and when the bolt-nut pair is loosened, the angle of the scraping head 310 can be rotated within the range of the arc hole, thereby adjusting the angle of the scraping head 310; or the scraping head 310 and the connecting frame 322 are both provided with through holes, and the bolt-nut pair is passed through the through holes. When the bolt-nut pair is tightened, the angle position of the scraping head 310 is locked, and when the bolt-nut pair is loosened, the scraping head 310 can be rotated around the bolt-nut pair to adjust the angle relative to the connecting frame 322. It is understandable that there are many structures in which one component can swing relative to another component to adjust the angle, and those skilled in the art can make specific configurations according to actual needs.

[0052] It is conceivable that in other embodiments, the scraping head 310 can be moved closer to or away from the foil by rotating, that is, the scraping head 310 can be pivotally connected to the adjustment frame 330. At this time, the driving component 320 can adopt a structure that outputs rotational power, such as a motor or a rotary cylinder, to drive the scraping head 310 to rotate closer to or away from the foil. Those skilled in the art can make specific configurations according to actual needs.

[0053] Specifically, the coating scraping device can be used to scrape off any length of coating slurry at the head and tail ends of the coating area of ​​the foil, such as 6 mm or 9 mm. Of course, the scraping length can be specifically configured according to the actual needs of those skilled in the art.

[0054] The present invention further includes a coating machine, comprising a coating mechanism 700 and the aforementioned coating scraping device. The coating mechanism 700 is used to apply a coating to the foil; wherein the coating mechanism 700 and the coating scraping mechanism 300 are arranged in sequence along the conveying direction of the foil conveying mechanism 200.

[0055] As the foil is conveyed by the foil conveyor mechanism 200, it first passes through the coating mechanism 700, which intermittently applies slurry to the foil to form a coated area. The foil then passes through the scraping mechanism 300, where the scraping head 310 scrapes away the slurry at the beginning and end of the coated area, ensuring a generally uniform thickness and neat edges across the entire coated area. The use of the scraping coating device ensures a more uniform coating thickness on the foil, improving the quality of the produced electrodes.

[0056] Specifically, the foil strip is coated with a coating machine and the slurry at the head and tail ends of the coating area is scraped off, and then it is wound after drying and weighing processes.

[0057] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A coating scraping device, characterized in that: include: A machine base (100) having a slurry scraping station (110); A foil conveying mechanism (200) is arranged on the machine base (100), and the foil conveying mechanism (200) is capable of driving the foil to move through the scraping station (110); A scraping mechanism (300) is provided on the machine base (100), the scraping mechanism (300) comprising a scraping head (310) and a driving assembly (320), the scraping head (310) being provided with a receiving groove (311), a scraping blade (312) being provided at a notch edge of the receiving groove (311) close to the scraping station (110), and the driving assembly (320) being used for driving the scraping head (310) to move closer to or away from the scraping station (110); A slurry suction mechanism (400) is provided on the machine base (100), and the slurry suction mechanism (400) is used to suck the accommodating tank (311).

2. The coating scraping device according to claim 1, characterized in that: The slurry suction mechanism (400) comprises a suction pump (410) and a suction pipe (420), one end of the suction pipe (420) extends into the accommodating groove (311), and the suction pump (410) is used to suck the suction pipe (420).

3. The coating scraping device according to claim 2, characterized in that: The slurry suction mechanism (400) further includes a slurry storage tank (430), the other end of the suction pipe (420) is connected to the upper part of the slurry storage tank (430), and the suction end of the suction pump (410) is connected to the upper part of the slurry storage tank (430).

4. The coating scraping device according to claim 1, characterized in that: It also includes a foil support plate (500), which is arranged on the machine base (100). The foil support plate (500) and the squeegee head (310) are respectively placed on opposite sides of the squeegee station (110).

5. The coating scraping device according to claim 1, characterized in that: The dilution mechanism (600) is further comprised. The dilution mechanism (600) is provided with a liquid injection end (601). The liquid injection end (601) extends into the containing tank (311). The dilution mechanism (600) can inject diluent into the containing tank (311) through the liquid injection end (601).

6. The coating scraping device according to claim 5, characterized in that: The dilution mechanism (600) comprises a diluent storage tank (610), a liquid injection pipe (620) and a flow control valve (630); one end of the liquid injection pipe (620) is connected to the diluent storage tank (610); the other end of the liquid injection pipe (620) is located in the accommodating tank (311); the other end of the liquid injection pipe (620) forms the liquid injection end (601); the flow control valve (630) is arranged on the liquid injection pipe (620); and the diluent storage tank (610) is higher than the liquid injection end (601).

7. The coating scraping device according to claim 5, characterized in that: The slurry suction mechanism (400) is provided with a suction end (401), the suction end (401) of the slurry suction mechanism (400) extends into the accommodating groove (311), and the scraping blade (312), the liquid injection end (601) and the suction end (401) are arranged in sequence along the up and down direction.

8. The coating scraping device according to claim 1, characterized in that: The driving assembly (320) includes a linear driver (321) and a connecting frame (322), wherein the linear driver (321) is connected to the connecting frame (322) and is used to drive the connecting frame (322) to move, and the scraping head (310) is connected to the connecting frame (322); the scraping head (310) is rotatably connected to the connecting frame (322) and can swing to adjust the angle relative to the scraping station (110).

9. The coating scraping device according to claim 8, characterized in that: The scraping mechanism (300) further comprises an adjusting frame (330), wherein the adjusting frame (330) is connected to the machine base (100) in an adjustable position along the width direction of the foil conveying mechanism (200), and the linear drive (321) is connected to the adjusting frame (330).

10. A coating machine, characterized in that: include: A coating mechanism (700) for applying a coating to the foil strip; The coating scraping device according to any one of claims 1 to 9; Wherein, the coating mechanism (700) and the scraping mechanism (300) are arranged in sequence along the conveying direction of the foil conveying mechanism (200).

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