Kiss coating device

Abstract

The utility model relates to the technical field of coating machines and coating machine accessories, in particular to a kiss coating device which comprises a die head body, a coating lip used for coating is arranged in the length direction of the die head body, and the center line of the coating lip and the center line of the die head body are arranged in a relative offset mode. The rotating roller is arranged on one side, close to a coating lip, of the die head body and is parallel to the coating lip; and the top end of the roller surface of the rotating roller is higher than the top end of the coating lip. The technical problem that in the coating process of an existing coating device, in the coating process, a coating lip is attached to the foil, the foil is prone to being scratched, and the quality of a pole piece is reduced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines and coating machine accessories, in particular to a kiss coating device. Background Art

[0002] As a precision coating technology, slit coating works on the principle that the coating slurry is extruded and sprayed along the slit of the coating die under a certain pressure and flow rate and transferred to the substrate. The coating die is generally composed of an upper die, a lower die and a gasket. A coating lip is formed on the front side of the coating die. The slurry is extruded from the coating lip and coated on the foil to form an electrode. Kiss coating is a method of coating the foil with the lip of the coating die facing upward, and no back roller support is provided behind the foil. During the coating process of the existing coating device, the coating lip needs to be fitted with the foil for coating. During coating, the coating lip fits the foil and the coating speed is fast. The coating lip can easily scratch the foil, resulting in a decrease in the quality of the electrode. Utility Model Content

[0003] The utility model provides a kiss coating device, which solves the technical problem that the coating lip of the existing coating device is easy to scratch the foil material when it fits with the foil material during the coating process, thus causing the quality of the pole piece to decrease.

[0004] In view of this, the utility model provides a kiss coating device, comprising:

[0005] The die body is provided with a coating lip for coating, the coating lip is arranged along the length direction of the die body, and the coating lip is arranged to be offset relative to the center line of the die body;

[0006] A rotating roller is arranged on a side of the die body close to the coating lip and is arranged parallel to the coating lip;

[0007] Wherein, the height of the top of the roller surface of the rotating roller is higher than the height of the top of the coating lip.

[0008] Optionally, two groups of adjustment components are further included, and the two groups of adjustment components are respectively arranged at the two ends of the die body through fixed plates; the output ends of the two groups of adjustment components are respectively connected to the two ends of the roller, suitable for adjusting the height of the roller.

[0009] Optionally, the adjustment assembly includes a shell, a screw rod, a slider and a driving member, the shell is arranged on the fixed plate; a slide rail is provided in the shell along the vertical direction, the slider is slidably connected to the slide rail, and the roller is connected to the slider; the screw rod is rotatably arranged in the shell along the vertical direction, and the screw rod is connected to the slider through a nut seat; the driving member is arranged on the shell, and the output end of the driving member is drivingly connected to the screw rod, suitable for driving the screw rod to rotate in the shell.

[0010] Optionally, the driving member includes a first driving motor, a first gear and a belt, and the end of the screw rod is sleeved with a second gear; the first driving motor is arranged on the housing, and the output end of the first driving motor is drivingly connected to the first gear, and the first gear and the second gear are connected by the belt.

[0011] Optionally, the adjusting end of the adjusting assembly is provided with a bearing seat, and the two ends of the roller are rotatably connected in the two bearing seats respectively; a second driving motor is provided on the bearing seat; the output end of the second driving motor is drivingly connected to the roller through a coupling, and is suitable for driving the roller to rotate;

[0012] And / or, it also includes two rotating plates, which are suitable for fixed connection with external equipment; the two rotating plates are respectively located at the two ends of the die head body, and the two fixed plates are respectively rotatably connected to the two rotating plates; a third driving motor is provided on the rotating plate, and the output end of the third driving motor is drivingly connected to the fixed plate, suitable for driving the fixed plate to rotate on the rotating plate.

[0013] Optionally, it also includes a discharge assembly; the die body is provided with a guide groove parallel to the coating lip, and the guide groove is located on the side of the coating lip away from the rotating roller; the discharge assembly is connected to the guide groove and is suitable for recovering the slurry.

[0014] Optionally, the material discharging assembly comprises a material receiving block and a recovery bucket; the two ends of the guide groove are connected, the two ends of the guide groove are provided with the material receiving blocks, and the material receiving blocks are provided with through holes connected with the guide groove; the through holes of the two material receiving blocks are connected with the recovery bucket through pipes;

[0015] And / or, a guide groove is provided on the die body, the guide groove is located between the coating lip and the guide groove, and the guide groove is communicated with the guide groove.

[0016] Optionally, the die body includes a first die, a second die and a gasket clamped between the first die and the second die; the first die, the gasket and the second die together form the coating lip; the rotating roller is arranged on the side of the second die away from the first die; the thickness of the end of the first die provided with the coating lip is greater than the thickness of the end of the second die provided with the coating lip.

[0017] Optionally, the first die head and the second die head are connected by a film-closing screw, and a clearance groove for installing the film-closing screw is provided on a side of the first die head facing away from the second die head.

[0018] Optionally, exhaust valves are provided at both ends of the die body, and the exhaust valves are connected to the inner cavity of the die body.

[0019] The technical solution of the utility model has the following advantages:

[0020] The utility model can be applied to kiss coating. When coating, the coating lip is set upward, and the foil is coated by the rotating roller and the coating die head in sequence. The foil is supported by the rotating roller so that there is a certain gap between the foil and the coating lip, so as to avoid direct contact between the coating lip and the foil and thus scratching the foil. Since the height of the foil gradually decreases with the distance from the rotating roller under the action of its own gravity, that is, the distance between the coating lip and the foil is smaller, there is a risk of fitting with the coating lip. By changing the position of the coating lip on the die body, the center line of the coating lip and the die body are relatively offset, that is, the coating lip deviates from the middle position of the die body. At the same time, the rotating roller is set on the side of the die body close to the coating lip, so as to reduce the distance between the coating lip and the rotating roller, and then the coating lip is located at a position with a larger distance from the foil, so as to avoid contact between the foil and the coating lip and thus scratching the foil, so that the foil is not affected by the die body during the tape running process, thereby ensuring the uniformity and stability of the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of the kiss coating device provided by the utility model;

[0023] Figure 2 for Figure 1 Sectional view at AA;

[0024] Figure 3 A partial view of the kiss coating device provided by the utility model;

[0025] Figure 4 A schematic diagram of the kiss coating device provided by the utility model being applied to kiss coating;

[0026] Figure 5 for Figure 4 A cross-sectional view of a kiss coating device in FIG.

[0027] Figure 6 A schematic diagram of the structure of the die body provided by the utility model;

[0028] Figure 7 for Figure 6 Sectional view at the middle BB;

[0029] Figure 8 A schematic diagram of the structure of the adjustment assembly provided by the utility model;

[0030] Fig. 9 for Figure 8 Sectional view at CC.

[0031] Description of reference numerals:

[0032] 1. Foil; 2. Coating lip; 3. Roller; 4. Adjustment assembly; 401. Shell; 402. Screw; 403. Slider; 404. First gear; 405. Belt; 406. Second gear; 5. Fixing plate; 6. Bearing seat; 7. Second drive motor; 8. Coupling; 9. Rotating plate; 10. Guide groove; 11. Receiving block; 12. Recovery barrel; 13. Transfer valve; 14. Pipeline; 15. Guide groove; 16. First die head; 17. Second die head; 18. Avoidance groove; 19. Exhaust valve; 20. Transfer plate; 21. Feed port; 22. Film closing screw. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Example 1

[0038] See also Figures 1 to 9 A kiss coating device provided in this embodiment includes: a die body, provided with a coating lip 2 for coating, the coating lip 2 is arranged along the length direction of the die body, and the coating lip 2 is relatively offset from the center line of the die body; a rotating roller 3 is arranged on one side of the die body close to the coating lip 2, and is arranged parallel to the coating lip 2; wherein the height of the top of the roller surface of the rotating roller 3 is higher than the height of the top of the coating lip 2.

[0039] It should be noted that the running direction of the foil 1 is from the rotating roller 3 to the die body; the spacing between the coating lip 2 and the side of the die body close to the rotating roller 3 is the first spacing, and the spacing between the coating lip 2 and the side of the die body away from the rotating roller 3 is the second spacing, and the first spacing is smaller than the second spacing.

[0040] In this embodiment, it can be applied to kiss coating. When coating, the coating lip 2 is set upward, and the foil 1 is coated by the rotating roller 3 and the coating die head in sequence. The foil 1 is supported by the rotating roller 3, so that there is a certain gap between the foil 1 and the coating lip 2 to avoid direct contact between the coating lip 2 and the foil 1, which may cause scratches on the foil 1. Because the height of the foil 1 gradually decreases with the distance from the rotating roller 3 under the action of its own gravity, that is, the distance between the coating lip 2 and the foil 1 is smaller, there is a risk of fitting with the coating lip 2. By changing the coating The coating lip 2 is positioned on the die body so that the coating lip 2 is relatively offset from the center line of the die body, that is, the coating lip 2 deviates from the middle position of the die body, and the rotating roller 3 is arranged on the side of the die body close to the coating lip 2 to reduce the distance between the coating lip 2 and the rotating roller 3, thereby making the coating lip 2 located at a larger distance from the foil 1, avoiding contact between the foil 1 and the coating lip 2 to scratch the foil 1, so that the foil 1 is not affected by the die body during the tape running process, thereby ensuring the uniformity and stability of the coating.

[0041] Example 2

[0042] As a further improvement to Example 1, Figures 1 to 3 As shown, the kiss coating device also includes two groups of adjustment components 4, which are respectively arranged at the two ends of the die body through fixed plates 5; the output ends of the two groups of adjustment components 4 are respectively connected to the two ends of the roller 3, which are suitable for adjusting the height of the roller 3.

[0043] In this embodiment, the die body is connected to the roller 3 through the adjustment component 4, and the adjustment ends of the two groups of adjustment components 4 can be driven simultaneously for adjustment, so as to facilitate the adjustment of the height of the roller 3, so that the gap between the foil 1 and the coating lip 2 is adjusted to the optimum to ensure the coating quality. The specific selection can be made according to the situation to improve the scope of application. At the same time, the connection is made through the fixed plate 5 to improve the connection strength.

[0044] Based on the above implementation, in a preferred implementation, Figure 8 As shown, the adjustment component 4 includes a shell 401, a screw rod 402, a slider 403 and a driving member. The shell 401 is arranged on the fixed plate 5; a slide rail is provided in the shell 401 along the vertical direction, the slider 403 is slidably connected to the slide rail, and the roller 3 is connected to the slider 403; the screw rod 402 is rotatably arranged in the shell 401 along the vertical direction, and the screw rod 402 is connected to the slider 403 through a nut seat; the driving member is arranged on the shell 401, and the output end of the driving member is drivingly connected to the screw rod 402, suitable for driving the screw rod 402 to rotate in the shell 401.

[0045] In this embodiment, when the height of the roller 3 needs to be adjusted, two sets of driving parts drive the screw rod 402 to rotate at the same time, and then the nut seat slides on the screw rod 402 to drive the slider 403 to slide on the slide rail along the vertical direction, thereby realizing the height adjustment of the roller 3.

[0046] Specifically, the slider 403 is connected to the roller 3 via the adapter plate 20 to improve the connection strength.

[0047] Based on the above implementation, in a preferred implementation, Fig. 9 As shown, the driving member includes a first driving motor, a first gear 404 and a belt 405, and the end of the screw rod 402 is sleeved with a second gear 406; the first driving motor is arranged on the housing 401, and the output end of the first driving motor is drivingly connected to the first gear 404, and the first gear 404 and the second gear 406 are connected by a belt 405.

[0048] In this embodiment, the first driving motor drives the first gear 404 to rotate, and the first gear 404 drives the second gear 406 to rotate through the belt 405, thereby driving the screw rod 402 to rotate to adjust the height of the roller 3.

[0049] As a convertible implementation, the present embodiment does not limit the specific structure of the adjustment component 4, and the adjustment component 4 can be a hydraulic cylinder, a cylinder or a linear module. Any of the above components can be used to adjust the height of the roller 3, and those skilled in the art can choose according to actual conditions.

[0050] Based on the above implementation, in a preferred implementation, Figure 3 As shown, the adjusting end of the adjusting component 4 is provided with a bearing seat 6, and the two ends of the roller 3 are rotatably connected in the two bearing seats 6 respectively; a second drive motor 7 is provided on the bearing seat 6; the output end of the second drive motor 7 is connected to the roller 3 through a coupling 8, which is suitable for driving the roller 3 to rotate.

[0051] In this embodiment, the bearing seat 6 is connected to the roller 3 to facilitate the rotation of the roller 3 and support the roller 3. When supporting the foil 1, under the action of friction, the roller 3 rotates together with the foil 1, reducing the sliding friction between the two and avoiding damage to the foil 1. At the same time, the rotation speed of the roller 3 can be adjusted to be consistent with the moving speed of the foil 1 through the second drive motor 7, further reducing the sliding friction between the two, avoiding damage to the foil 1, and ensuring the quality of the formed electrode.

[0052] Based on the above implementation, in a preferred implementation, Figure 1As shown, the kiss coating device also includes two rotating plates 9, which are suitable for fixed connection with external equipment; the two rotating plates 9 are respectively located at the two ends of the die body, and the two fixed plates 5 are rotatably connected to the two rotating plates 9 respectively; a third driving motor is provided on the rotating plate 9, and the output end of the third driving motor is drivingly connected to the fixed plate 5, suitable for driving the fixed plate 5 to rotate on the rotating plate 9.

[0053] In this embodiment, the die body is fixed to the external device by a rotating plate 9 to improve the connection strength. At the same time, the fixing plate 5 is rotatably connected to the die body and then adjusted in conjunction with the third driving motor to adjust the angle of the die body, thereby changing the coating angle of the coating lip 2 and increasing the scope of use.

[0054] Based on the above implementation, in a preferred implementation, Figure 1 and Figure 2 As shown, the kiss coating device also includes a discharge assembly; a guide groove 10 parallel to the coating lip 2 is provided on the die body, and the guide groove 10 is located on the side of the coating lip 2 away from the rotating roller 3; the discharge assembly is connected to the guide groove 10 and is suitable for recovering the slurry.

[0055] It should be noted that the level of the guide groove 10 is lower than the level of the coating lip 2 .

[0056] In this embodiment, a guide groove 10 is provided on the die body, and the slurry flowing onto the die body is collected through the guide groove 10 and recycled through the discharge assembly, thereby preventing the slurry from contaminating the die body and saving resources.

[0057] Based on the above implementation, in a preferred implementation, Figure 1 As shown, the material discharge assembly includes a material receiving block 11 and a recovery bucket 12; the two ends of the guide groove 10 are connected, and both ends of the guide groove 10 are provided with a material receiving block 11, and the material receiving block 11 is provided with a through hole connected to the guide groove 10; the through holes of the two material receiving blocks 11 are connected to the recovery bucket 12 through a pipe 14.

[0058] In this embodiment, after the slurry flows into the guide groove 10, it passes through the through holes and the pipe 14 on the receiving block 11 in sequence and then flows into the recovery barrel 12 to complete the recovery. The number of recovery barrels 12 can be set to one, and the two receiving blocks 11 are connected to one recovery barrel 12; the number of recovery barrels 12 can also be set to two, and the two receiving blocks 11 are respectively connected to the two recovery barrels 12. The specific selection can be made according to the actual situation.

[0059] Specifically, Figure 3 As shown, the pipeline 14 is connected to the through hole through the switching valve 13. The pipeline 14 can be controlled to be opened or closed by the switching valve 13, so as to facilitate the control of the slurry during the recovery process.

[0060] On the basis of the above-mentioned embodiment, in a preferred embodiment, a guide groove 15 is provided on the die body, the guide groove 15 is located between the coating lip 2 and the guide groove 10 , and the guide groove 15 is communicated with the guide groove 10 .

[0061] In this embodiment, the guide groove 15 is provided to facilitate the slurry that has flowed onto the die body to be introduced into the guide groove 10, thereby preventing the slurry from flowing to the two sides of the die body and contaminating the die body, thereby improving the recovery effect.

[0062] Based on the above implementation, in a preferred implementation, Figure 6 and Figure 7 As shown, the die body includes a first die 16, a second die 17 and a gasket clamped between the first die 16 and the second die 17; the first die 16, the gasket and the second die 17 are combined to form a coating lip 2; the rotating roller 3 is arranged on the side of the second die 17 away from the first die 16; the thickness of the end of the first die 16 provided with the coating lip 2 is greater than the thickness of the end of the second die 17 provided with the coating lip 2.

[0063] In this embodiment, the die body is a split structure consisting of a first die 16 and a second die 17, which is convenient for installation and disassembly for cleaning. Since the coating lip 2 is formed by the first die 16 and the second die 17, the thickness of the first die 16 and the second die 17 at the end where the coating lip 2 is provided is changed, thereby changing the position of the formed coating lip 2, so that the coating lip 2 is offset to the side away from the center, and at the same time, the roller 3 is arranged on one side of the second die 17 to reduce the distance between the roller 3 and the coating lip 2.

[0064] Specifically, the coating lip 2 includes an upper lip and a lower lip. The upper lip is arranged on the first die 16 , and the lower lip is arranged on the second die 17 . The upper lip and the lower lip are enclosed to form the coating lip 2 .

[0065] Specifically, a groove is provided on one side where the second die head 17 is connected to the first die head 16. The groove, the gasket and the first die head 16 enclose an inner cavity of the die head body. A feed port 21 communicating with the inner cavity of the die head body is provided on the second die head 17. The feed port 21 is used to connect to a feeding device to provide slurry.

[0066] Based on the above implementation, in a preferred implementation, Figure 6 and Figure 7 As shown, the first die head 16 and the second die head 17 are connected by a film closing screw 22 , and a clearance groove 18 for installing the film closing screw 22 is provided on the side of the first die head 16 facing away from the second die head 17 .

[0067] In this embodiment, the first die head 16 and the second die head 17 are connected by a closing screw 22. By providing a clearance groove 18 on the side of the first die head 16 away from the second die head 17, it is convenient to connect the first die head 16 and the second die head 17 by the closing screw 22.

[0068] On the basis of the above-mentioned embodiment, in a preferred embodiment, exhaust valves 19 are provided at both ends of the die body, and the exhaust valves 19 are communicated with the inner cavity of the die body.

[0069] It should be noted that the die body has an inner cavity for the slurry to flow, and the inner cavity of the die body is connected to the coating lip 2 .

[0070] In this embodiment, an exhaust valve 19 is provided to communicate with the inner cavity of the die body, so as to facilitate exhaust before coating, thereby preventing air from mixing into the slurry and causing bubbles to form during coating, thereby affecting the coating effect.

[0071] Specifically, the exhaust valve 19 is disposed on the first die head 16 .

[0072] The working principle of the kiss coating device provided in this embodiment is as follows: before coating, the angle of the coating lip 2 is adjusted by the third driving motor, and the height of the roller 3 is adjusted by the first driving motor, so that the coating lip 2 maintains an appropriate distance from the foil 1. During coating, the foil 1 passes through the roller 3 and the coating die head in sequence, and the rotation speed of the roller 3 is adjusted by the second driving motor 7 to be consistent with the speed of the foil 1 to reduce sliding friction and avoid wear on the foil 1. During the coating process of the foil 1, a part of the slurry is coated on the foil 1, and the other part of the slurry flows along the coating outlet into the guide groove 15 and into the guide groove 10, and then is recovered to the recovery barrel 12 through the pipeline 14; the foil 1 is under its own weight. Under the action of force, the height of the coating lip 2 gradually decreases with the distance from the rotating roller 3, that is, the distance between the coating lip 2 and the foil 1 is smaller. In this embodiment, the thickness of the coating lip 2 at one end of the first die 16 and the second die 17 is adjusted to change the position of the coating lip 2 on the die body, that is, the first distance is smaller than the second distance, so that the coating lip 2 deviates from the middle position of the die body, and the rotating roller 3 is set on the side of the die body close to the coating lip 2 to reduce the distance between the coating lip 2 and the rotating roller 3, thereby making the distance between the coating lip 2 and the foil 1 larger, avoiding the contact between the foil 1 and the coating lip 2 to scratch the foil 1, so that the foil 1 is not affected by the die body during the tape running, and the uniformity and stability of the coating are guaranteed. The technical problem that the coating lip 2 of the existing coating device is easy to scratch the foil 1 when it fits with the foil 1 during the coating process, resulting in a decrease in the quality of the electrode, is solved.

[0073] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A kiss coating device, characterized in that: include: The die body is provided with a coating lip (2) for coating, the coating lip (2) is arranged along the length direction of the die body, and the coating lip (2) is arranged to be offset relative to the center line of the die body; A rotating roller (3) is arranged on a side of the die body close to the coating lip (2) and is arranged parallel to the coating lip (2); Wherein, the height of the top of the roller surface of the rotating roller (3) is higher than the height of the top of the coating lip (2).

2. The kiss coating device according to claim 1, characterized in that: It also comprises two groups of adjustment components (4), which are respectively arranged at the two ends of the die body through a fixing plate (5); the output ends of the two groups of adjustment components (4) are respectively connected to the two ends of the rotating roller (3), and are suitable for adjusting the height of the rotating roller (3).

3. The kiss coating device according to claim 2, characterized in that: The adjusting assembly (4) comprises a housing (401), a screw rod (402), a slider (403) and a driving member, wherein the housing (401) is arranged on the fixing plate (5); a slide rail is arranged in the housing (401) along the vertical direction, the slider (403) is slidably connected to the slide rail, and the roller (3) is connected to the slider (403); the screw rod (402) is rotatably arranged in the housing (401) along the vertical direction, and the screw rod (402) is connected to the slider (403) via a nut seat; the driving member is arranged on the housing (401), and the output end of the driving member is drivingly connected to the screw rod (402), and is suitable for driving the screw rod (402) to rotate in the housing (401).

4. The kiss coating device according to claim 3, characterized in that: The driving member comprises a first driving motor, a first gear (404) and a belt (405); the end of the screw rod (402) is sleeved with a second gear (406); the first driving motor is arranged on the housing (401), and the output end of the first driving motor is drivingly connected to the first gear (404); the first gear (404) and the second gear (406) are connected via the belt (405).

5. The kiss coating device according to claim 2, characterized in that: The adjusting end of the adjusting component (4) is provided with a bearing seat (6), and the two ends of the roller (3) are rotatably connected in the two bearing seats (6); a second drive motor (7) is provided on the bearing seat (6); the output end of the second drive motor (7) is connected to the roller (3) through a coupling (8), and is suitable for driving the roller (3) to rotate; And / or, it also includes two rotating plates (9) suitable for being fixedly connected to external equipment; the two rotating plates (9) are respectively located at the two ends of the die head body, and the two fixed plates (5) are respectively rotatably connected to the two rotating plates (9); a third driving motor is provided on the rotating plate (9), and the output end of the third driving motor is drivingly connected to the fixed plate (5), suitable for driving the fixed plate (5) to rotate on the rotating plate (9).

6. The kiss coating device according to claim 1, characterized in that: It also includes a discharge assembly; the die body is provided with a guide groove (10) parallel to the coating lip (2), and the guide groove (10) is located on the side of the coating lip (2) away from the rotating roller (3); the discharge assembly is connected to the guide groove (10) and is suitable for recovering the slurry.

7. The kiss coating device according to claim 6, characterized in that: The material discharge assembly comprises a material receiving block (11) and a recovery bucket (12); the two ends of the guide groove (10) are connected, the two ends of the guide groove (10) are provided with the material receiving blocks (11), and the material receiving blocks (11) are provided with through holes connected to the guide groove (10); the through holes of the two material receiving blocks (11) are connected to the recovery bucket (12) through pipes (14); And / or, a guide groove (15) is provided on the die body, the guide groove (15) is located between the coating lip (2) and the guide groove (10), and the guide groove (15) is communicated with the guide groove (10).

8. The kiss coating device according to any one of claims 1 to 7, characterized in that: The die body comprises a first die (16), a second die (17) and a gasket sandwiched between the first die (16) and the second die (17); the first die (16), the gasket and the second die (17) enclose the coating lip (2); the rotating roller (3) is arranged on a side of the second die (17) away from the first die (16); the thickness of one end of the first die (16) provided with the coating lip (2) is greater than the thickness of one end of the second die (17) provided with the coating lip (2).

9. The kiss coating device according to claim 8, characterized in that: The first die head (16) and the second die head (17) are connected via a film closing screw (22), and a clearance groove (18) for installing the film closing screw (22) is provided on the side of the first die head (16) facing away from the second die head (17).

10. The kiss coating device according to claim 1, characterized in that: Both ends of the die body are provided with exhaust valves (19), and the exhaust valves (19) are communicated with the inner cavity of the die body.

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