Device for stabilizing foil

Abstract

The invention discloses a foil stabilizing device which comprises a plurality of conveying rollers used for conveying foils. And the scraping and sucking assembly is arranged above the conveying roller and is used for scraping the edge of the slurry in the foil conveying direction and sucking away the slurry. And the vacuum adsorption assembly is arranged between the two conveying rollers, and the vacuum adsorption assembly is provided with a flat upper surface and is used for adsorbing and supporting the foil. According to the device for stabilizing the foil, the vacuum adsorption assembly is arranged between the conveying rollers for conveying the foil to adsorb and support the foil, shaking of the foil is avoided, and the foil machining effect is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of lithium battery automation equipment, and particularly relates to a foil stabilizing device. BACKGROUND

[0002] A coating machine is used to uniformly coat active materials on the surface of a foil (such as a copper foil or an aluminum foil). In a profile coating process, the foil is prone to slight shaking due to variable speed movement of a coating head or tension fluctuation. This problem is further exacerbated in subsequent processing links (such as rolling, slitting or laser etching) because a processing mechanism needs to directly contact the foil to complete the work, and the shaking of the foil will cause the processing precision to decrease, and even cause material damage or equipment stability problems.

[0003] The prior art usually suppresses the shaking of the foil by improving the tension control precision or increasing the number of conveying rollers, but in a high dynamic working condition of profile coating, the traditional method is difficult to effectively eliminate the interference of the shaking on the processing mechanism. SUMMARY

[0004] The present application aims to provide a foil stabilizing device for suppressing the shaking of a foil.

[0005] To achieve the above-mentioned purpose, the foil stabilizing device of the present application comprises: a plurality of conveying rollers for conveying a foil, the foil being coated with slurry; at least one scraping and suction assembly arranged above the conveying rollers for scraping the edges of the slurry along the conveying direction of the foil and suctioning the slurry away; a vacuum adsorption assembly arranged between two adjacent conveying rollers and opposite to the lower side of the scraping and suction assembly, the vacuum adsorption assembly having a flat upper surface for adsorbing and supporting the foil.

[0006] In one embodiment of the foil stabilizing device of the present application, the vacuum adsorption assembly comprises a split adsorption plate and an adsorption box, the adsorption plate and the adsorption box forming a sealed cavity, the adsorption box having a suction port, and the suction port being connected with a negative pressure device.

[0007] In one embodiment of the foil stabilizing device of the present application, the adsorption box is provided with a plurality of buckles, the adsorption plate is provided with a plurality of buckle seats, and the buckles and the buckle seats cooperate to fix the adsorption box and the adsorption plate.

[0008] In one embodiment of the foil stabilizing device of the present application, a sealing gasket is arranged between the adsorption box and the adsorption plate.

[0009] In one embodiment of the foil stabilizing device of the present application, an opening is processed on the upper surface of the adsorption plate, a pad plate is arranged in the opening, and the pad plate is made of PTFE.

[0010] In one embodiment of the foil stabilizing device, the scraping and sucking assembly comprises a scraping and sucking base and a scraper, the scraping and sucking base is provided with a vacuum cavity, the scraper is installed in the vacuum cavity and extends out of the scraping and sucking base, and the vacuum cavity is connected with a negative pressure device.

[0011] In one embodiment of the foil stabilizing device, the scraping and sucking assembly is installed above the foil through an angle adjusting assembly, and the angle adjusting assembly can adjust the angle between the scraping and sucking assembly and the foil.

[0012] In one embodiment of the foil stabilizing device, the scraping and sucking assembly is connected with a first driving member for driving the scraping and sucking assembly to approach or move away from the foil.

[0013] In one embodiment of the foil stabilizing device, the scraping and sucking assembly is connected with a second driving member for driving the scraping and sucking assembly to move along the width direction of the foil.

[0014] In one embodiment of the foil stabilizing device, a sensor is arranged upstream of the foil feeding direction of the scraping and sucking assembly for detecting the deviation of the foil.

[0015] In summary, the foil stabilizing device can avoid the shaking of the foil and improve the processing effect of the foil by arranging the vacuum sucking assembly between the conveying rollers to suck and support the foil. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural diagram of an embodiment of the present application.

[0017] Figure 2 is Figure 1 a structural diagram of the scraping and sucking assembly.

[0018] Figure 3 is Figure 1 an explosion diagram of the angle adjusting assembly.

[0019] Figure 4 is Figure 1 a structural diagram of the vacuum sucking assembly.

[0020] Figure 5 is Figure 1 a structural diagram of another angle.

[0021] F. Foil; S. Slurry; 100. Support plate; 110. Main horizontal plate; 120. Lifting plate; 130. Horizontal plate; 131. Mounting hole; 140. Scraper assembly mounting plate; 150. Slide rail; 160. Liquid tank mounting plate; 200. Conveyor roller; 300. Scraper assembly; 310. Scraper seat; 320. Scraper; 330. Vacuum chamber; 340. Liquid inlet; 350. Suction port; 400. Angle adjustment assembly; 410. Fixing plate; 411. Threaded hole; 412. Angle gauge; 413. Arc groove; 414. Roller; 420. Movable plate; 421. Arc hole; 422. Angle pointer; 423. Stepped surface; 430. Support block; 431. Set screw; 500, First driving component; 600, Second driving component; 610, Sensor; 620, Sensor bracket; 700, Position adjustment assembly; 710, Horizontal adjustment plate; 720, Adjusting bolt; 730, Screw mounting base; 800, Vacuum adsorption assembly; 810, Adsorption assembly mounting plate; 820, Adsorption plate; 821, Adsorption hole; 830, Adsorption box; 840, Sealing gasket; 850, Pad plate; 860, Air extraction port; 870, Pressure gauge interface; 880, Lock; 890, Lock seat; 900, Diluent tank; 910, Flow regulating valve. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0023] The foil stabilization device disclosed in this embodiment of the invention can prevent foil shaking during electrode conveying. A foil processing mechanism is provided above the vacuum adsorption component. In this embodiment, the foil processing mechanism is a scraping and suction component, which cooperates with the foil stabilization device to form a slurry edge scraping device.

[0024] like Figure 1 , Figure 2 As shown, the slurry edge scraping device includes a pair of support plates 100, with multiple conveying rollers 200 rotatably arranged between the support plates 100 for conveying foil F coated with slurry S. At least one scraping and suction assembly 300 is positioned above the conveying rollers 200. The scraping and suction assembly 300 includes a scraping and suction base 310 and a scraper 320. A vacuum chamber 330 is provided inside the scraping and suction base 310, and the scraper 320 is mounted on the scraping and suction base 310 and extends into the vacuum chamber 330. The scraper 320 is used to scrape the edge of the slurry S along the conveying direction of the foil F. A negative pressure device (not shown in the figure) is connected to the vacuum chamber 330 to remove the scraped slurry S. Through the cooperative design of the scraper 320 and the vacuum chamber 330, while scraping the slurry S with uneven thickness at the edge of the foil F, the waste material can be immediately removed using the negative pressure device, avoiding the accumulation of slurry S or secondary contamination, thus improving cleaning efficiency.

[0025] The scraping and sucking assembly 300 is arranged in at least one group and arranged at the uneven thickness area of the slurry S which needs to be scraped, i.e. the edge of the slurry S. In the embodiment, two slurry S are coated on a foil F, and the foil F is cut after one-time coating to form two pole pieces. The scraping and sucking assembly 300 is arranged in three groups, two groups of scraping and sucking assemblies 300 are arranged at the edges of the foil F and used for scraping the edges of the two slurry S away from each other, and one group of scraping and sucking assemblies 300 is arranged between the two groups of scraping and sucking assemblies 300 and used for scraping the edges of the two slurry S close to each other. The arrangement of multiple groups of scraping and sucking assemblies 300 can improve the working efficiency.

[0026] Each support plate 100 is also provided with an angle adjusting assembly 400, and the two angle adjusting assemblies 400 jointly install the three groups of scraping and sucking assemblies 300 and are used for adjusting the angle between the scraping knife 320 of the scraping and sucking assembly 300 and the foil F to achieve better scraping and sucking effect.

[0027] As shown in Figure 3 The angle adjusting assembly 400 includes a fixed plate 410 and a movable plate 420 which are hinged through a rotating shaft. The movable plate 420 is provided with an arc-shaped hole 421, the fixed plate 410 is provided with a threaded hole 411 at the corresponding position, and a fastener is locked after penetrating through the arc-shaped hole 421 to realize the angle fixation of the movable plate 420.

[0028] Further, the fixed plate 410 is provided with an angle ruler 412, and the movable plate 420 is provided with an angle pointer 422, so that the adjusted angle can be clearly displayed.

[0029] Further, the fixed plate 410 is provided with a support block 430 on both sides along the conveying direction of the foil F, a jack screw 431 is arranged through the support block 430, and the jack screw 431 is abutted on both sides of the movable plate 420 to further fix the movable plate 420.

[0030] Further, the upper surface of the fixed plate 410 is in a circular arc shape, the upper surface of the fixed plate 410 is inwardly machined with an arc-shaped groove 413, a plurality of rollers 414 are rotatably connected in the arc-shaped groove 413, and the roller surface of each roller 414 extends out of the upper surface of the fixed plate 410. A stepped surface 423 is formed on the side wall of the movable plate 420, and the stepped surface 423 is in an arc shape and matched with the upper surface of the fixed plate 410. After the movable plate 420 is hinged with the fixed plate 410, the stepped surface 423 is in rolling contact with the roller surface of the plurality of rollers 414. The fixed plate 410 and the movable plate 420 are in rolling contact through the plurality of rollers 414 to reduce the friction and facilitate the adjustment of the angle.

[0031] Again referring to Figure 1As shown, the two movable plates 420 are provided with a main transverse plate 110, and the two sides of the main transverse plate 110 are provided with a first driving member 500 and a lifting plate 120, respectively. The lifting plate 120 is slidingly installed on the main transverse plate 110, and the first driving member 500 is preferably a cylinder, and the driving end of the first driving member 500 is connected with the lifting plate 120 to drive the lifting plate 120 to move up and down.

[0032] The lifting plate 120 is provided with a second driving member 600, which is preferably a motor and a screw rod combination, and the driving direction of the second driving member 600 is along the width direction of the foil F. The driving end of the second driving member 600 is connected with a transverse plate 130. Three groups of scraping and sucking assemblies 300 are connected with the transverse plate 130 through a scraping and sucking assembly mounting plate 140. The front surface of the lifting plate 120 is provided with a sliding rail 150 along the width direction of the foil. Each scraping and sucking assembly mounting plate 140 is slidingly installed on the lifting plate 120 through the sliding rail 150. The second driving member 600 synchronously drives the three groups of scraping and sucking assemblies 300 to move along the width direction of the foil F through the transverse plate 130.

[0033] The transverse plate 130 is provided with a plurality of mounting holes 131, and the scraping and sucking assembly mounting plate 140 is installed on the transverse plate 130 through a position adjusting assembly 700. The position adjusting assembly 700 includes a transverse adjusting plate 710, an adjusting bolt 720, and a screw rod mounting seat 730. The screw rod mounting seat 730 is installed on the transverse plate 130 through the mounting hole 131, the adjusting bolt 720 penetrates through the screw rod mounting seat 730 and is connected with the transverse adjusting plate 710, the transverse adjusting plate 710 is connected with the scraping and sucking assembly 300 mounting plate 140, and the position of the scraping and sucking assembly 300 can be adjusted through the adjusting bolt 720.

[0034] A vacuum suction assembly 800 is arranged below the scraping and sucking assembly 300 and between the two conveying rollers 200. The upper surface of the vacuum suction assembly 800 is a flat surface for supporting and sucking the foil F. When the scraper 320 contacts the foil F, the vacuum suction assembly 800 provides a support for the foil F to prevent the foil F from shaking and improve the effect of removing the slurry S. The two ends of the vacuum suction assembly 800 are installed on the support plate 100 through a suction assembly mounting plate 810, and the angle of the vacuum suction assembly 800 can be adjusted through the suction assembly mounting plate 810.

[0035] As shown in the figure, Figure 4 The vacuum suction assembly 800 includes a suction plate 820 and a suction box 830 arranged in two parts. The suction box 830 is a box body without an upper top surface, and the suction plate 820 serves as the upper top surface of the suction box 830, forming a sealed cavity. The suction plate 820 and the suction box 830 are arranged in two parts, which is convenient for disassembly and cleaning, and the area to be sucked can be replaced according to different processes. The suction plate 820 and the suction box 830 are provided with a sealing gasket 840 to prevent air leakage of the sealed cavity.

[0036] The upper surface of the adsorption plate 820 is processed with an opening, and a pad plate 850 is arranged in the opening. The pad plate 850 is made of PTFE material and can reduce the friction between the adsorption plate 820 and the foil F. The upper surface of the adsorption plate 820 is also processed with a plurality of adsorption holes 821 for adsorbing the foil F and preventing the foil F from shaking.

[0037] The adsorption box 830 is provided with a plurality of buckles 880, and the adsorption plate 820 is provided with a plurality of buckle seats 890. The buckle 880 cooperates with the buckle seat 890 to fix the adsorption box 830 and the adsorption plate 820. The adsorption plate 820 is convenient to disassemble and fix.

[0038] As shown in Figure 2 The scraping and sucking seat 310 has a vacuum cavity 330, the scraper 320 is installed in the vacuum cavity 330 and extends out of the scraping and sucking seat 310, and the scraping and sucking seat 310 is provided with a liquid inlet 340 and a suction port 350 which are in communication with the vacuum cavity 330.

[0039] As shown in Figure 5 The scraping and sucking assembly 300 is provided with a sensor 610 upstream along the incoming direction of the foil F, which is used to detect the offset of the foil F, and according to the offset, the second driving member 600 drives the three groups of scraping and sucking assemblies 300 to move along the width direction of the foil F. The sensor 610 is preferably an ultrasonic sensor, and two sensors are arranged at the edges of the foil F. The sensor 610 is arranged on the sensor support 620, and the position of the sensor can be adjusted through the sensor support 620.

[0040] The two movable plates 420 are also provided with a liquid tank mounting plate 160, and the dilution liquid tank 900 is mounted on the liquid tank mounting plate 160. A plurality of flow regulating valves 910 are arranged on the liquid tank mounting plate 160. In the present embodiment, three flow regulating valves 910 are arranged, which are in communication with the liquid inlets 340 of the three groups of scraping and sucking assemblies 300, respectively, and are used to regulate the flow of the dilution liquid.

[0041] One end of the liquid inlet 340 is connected with the vacuum cavity 330, and the other end is connected with the dilution liquid tank 900. One end of the suction port 350 is connected with the vacuum cavity 330, and the other end is connected with the negative pressure device. During the conveying of the foil F, the scraper contacts the edge of the slurry S to scrape off the slurry S. The dilution liquid flows into the vacuum cavity 330 through the liquid inlet 340 to dilute the scraped slurry S, so as to avoid the accumulation of the slurry S to block the vacuum cavity 330, the liquid inlet 340 and the suction port 350. The mixture of the dilution liquid and the slurry S is sucked away through the suction port 350.

[0042] To sum up, the embodiment of the present application sets the vacuum adsorption assembly between the two conveying rollers below the scraping and sucking assembly, avoids foil shaking, and improves the edge removal effect of the slurry.

[0043] The embodiment takes the operation of the scraping and sucking assembly for partially removing the slurry on the foil as an example to illustrate the scheme of the present application. As known from the above description, the device for stabilizing the foil of the present application is not limited to the scraping and sucking assembly as the processing unit for processing the foil or the slurry, and any operation of processing the foil or the slurry in a direct contact manner, including slitting, cleaning, etching, and roller pressing, can adopt the corresponding processing unit to process the foil or the slurry, so as to achieve the effect of preventing shaking in the processing process.

[0044] Obviously, the above embodiment is only an example for clearly illustrating the present application, and is not a limitation on the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An apparatus for stabilizing a foil, characterized by, The application relates to a foil conveying device, comprising: a plurality of conveying rollers for conveying a foil coated with slurry; at least one scraping and sucking assembly arranged above the conveying rollers and used for scraping and removing part of the slurry along the conveying direction of the foil; a vacuum adsorption assembly arranged below the scraping and sucking assembly and opposite to the scraping and sucking assembly between two adjacent conveying rollers, wherein the vacuum adsorption assembly has a flat upper surface for adsorbing and supporting the foil.

2. The apparatus for stabilizing foil as claimed in claim 1, wherein The vacuum adsorption assembly comprises a split adsorption plate and an adsorption box, and the adsorption plate and the adsorption box form a sealed cavity; the adsorption box is provided with an air outlet connected with a negative pressure device.

3. The apparatus for stabilizing foil as claimed in claim 2, wherein The adsorption box is provided with a plurality of buckles, and the adsorption plate is provided with a plurality of buckle seats; the buckles and the buckle seats are matched to fix the adsorption box and the adsorption plate.

4. A device for stabilizing a foil as claimed in claim 2 or 3, characterized in that A sealing gasket is arranged between the adsorption box and the adsorption plate.

5. The apparatus for stabilizing foil of any one of claims 2, wherein, An opening is formed on the upper surface of the adsorption plate, and a pad plate made of PTFE is arranged in the opening.

6. The apparatus for stabilizing foil as defined in claim 1, wherein, The scraping and sucking assembly comprises a scraping and sucking seat and a scraper; the scraping and sucking seat is provided with a vacuum cavity; the scraper is installed in the vacuum cavity and extends out of the scraping and sucking seat; and the vacuum cavity is connected with a negative pressure device.

7. The apparatus for stabilizing foil as defined in claim 1, wherein The scraping and sucking assembly is arranged above the foil through an angle adjusting assembly, and the angle adjusting assembly can adjust the angle between the scraping and sucking assembly and the foil.

8. The apparatus for stabilizing foil as defined in claim 1, wherein, The scraping and sucking assembly is connected with a first driving member for driving the scraping and sucking assembly to approach or move away from the foil.

9. The apparatus for stabilizing foil as defined in claim 8, wherein, The scraping and sucking assembly is connected with a second driving member for driving the scraping and sucking assembly to move along the width direction of the foil.

10. An apparatus for stabilizing a foil, characterized by The application relates to a foil conveying device, comprising: a plurality of conveying rollers for conveying a foil coated with slurry; a processing unit arranged on one side of the conveying rollers and used for processing the foil or the slurry; a vacuum adsorption assembly arranged between the conveying rollers, wherein the vacuum adsorption assembly has an upper surface for adsorbing the foil and providing an adsorption force for the foil when the processing unit provides processing.

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