CN214600086U - Coating system - Google Patents
Coating system Download PDFInfo
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- CN214600086U CN214600086U CN202022865257.7U CN202022865257U CN214600086U CN 214600086 U CN214600086 U CN 214600086U CN 202022865257 U CN202022865257 U CN 202022865257U CN 214600086 U CN214600086 U CN 214600086U
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Abstract
The application proposes a coating system for slurry coating a foil, comprising: the device comprises a tension roller for tensioning the foil and an adsorption roller arranged in parallel with the tension roller. Wherein, the adsorption roller is used for adsorbing the foil flattened on the surface of the adsorption roller. The coating system further comprises a coating die for applying the slurry to the foil. In the working process of the coating system, the foil can be driven by the rotation of the adsorption roller to move from the tension roller to the adsorption roller, and the coating die head is suitable for coating slurry on the foil which is tensioned between the tension roller and the adsorption roller and is in a suspension state. The adsorption roller can closely adsorb the foil on the surface of adsorption roller, guarantees at the coating in-process, and after the coating die head extrudeed out the thick liquids, the deformation degree of foil can be controlled when the thick liquids fall to the foil surface, guarantees that the coating is even.
Description
Technical Field
The application relates to the technical field of lithium battery production and manufacturing, in particular to a coating system.
Background
The existing extrusion coating technology utilizes a coating back roll to flatten the foil, a coating die head extrudes battery slurry onto the foil, and the back roll cannot jump radially in the normal coating process. In addition, the back roll inevitably has a mounting gap in the mounting process. Therefore, during normal coating, the radial runout amplitude of the back roll can fluctuate periodically, and the fluctuation can cause the distance between the coating die and the foil to fluctuate, so that lithium battery slurry is distributed unevenly during the coating process, and the consistency of the coating surface density is affected.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. For this reason, this application proposes a coating system, has guaranteed the coating uniformity.
A coating system according to an embodiment of the first aspect of the application for slurry coating of a foil comprises: a tensioning roller for tensioning the foil; the adsorption roller is arranged in parallel with the tensioning roller and is used for adsorbing the foil flattened on the surface of the adsorption roller; a coating die head for coating the slurry on the foil; wherein the foil is drivable by rotation of the suction roller to move from the tension roller to the suction roller, and the coating die is adapted to coat the foil tensioned between the tension roller and the suction roller in a suspended state with a slurry.
The coating system according to the embodiment of the application has at least the following advantages: the adsorption roller can closely adsorb the foil on the surface of adsorption roller, guarantees at the coating in-process, and after the coating die head extrudeed out the thick liquids, the deformation degree of foil can be controlled when the thick liquids fall to the foil surface, guarantees that the coating is even.
According to some embodiments of the present application, the suction roller is a vacuum suction roller, and the suction roller main body is provided with a plurality of suction holes.
According to some embodiments of the present application, the suction roller is connected at one end thereof with a vacuum tube and at the other end thereof with a motor.
According to some embodiments of the application, the adsorption holes are round holes with a diameter of 0.2mm to 1 mm.
According to some embodiments of the application, the foil stretching device further comprises a tension adjusting mechanism, wherein the tension adjusting mechanism comprises a fixed roller and a swinging roller, and the swinging roller can move relative to the fixed roller so as to act on the surface of the foil passing through the fixed roller to adjust the stretching tension of the foil.
According to some embodiments of the application, still include the connecting plate, the swing roller is fixed in the one end of connecting plate, the other end of connecting plate is connected with the cylinder, the cylinder is used for promoting the connecting plate with the swing roller makes the swing roller can for two the fixed roll removes.
According to some embodiments of the application, still include tension sensor, tension sensor set up in the tensioning roller bottom, tension sensor is used for detecting the tensile tension of foil.
According to some embodiments of the present application, further comprising a control mechanism electrically connected with the tension sensor and the cylinder, respectively.
According to some embodiments of the application, a stop assembly for limiting movement of the connecting plate.
According to some embodiments of the application, the output torque of the suction roller ranges from 0 to 100N × M.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of the composition of a coating system according to an embodiment of the present application;
fig. 2 is a schematic view of a vacuum suction roller in the embodiment of the present application.
Reference numerals:
the device comprises an adsorption roller 100, a motor 110, an adsorption hole 120, a vacuum tube 130, a tension roller 210, a tension sensor 220, a tension adjusting mechanism 300, a fixed roller 310, a swing roller 320, a connecting plate 330, an air cylinder 340, a limiting assembly 350, a coating die head 400, a foil 500 and a control mechanism 600.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional or positional relationships referred to in the positional descriptions, such as up, down, front, rear, left, right, and the like, are based on the positional or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.
In the description of the present application, a plurality means two or more, and greater than, less than, more than, etc. are understood as excluding the present number, and greater than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected, etc., should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application in view of the detailed contents of the technical solutions.
Referring to fig. 1, fig. 1 illustrates a coating system of one embodiment of the present application for slurry coating a foil 500, comprising: a tension roller 210 for tensioning the foil 500, and an adsorption roller 100 disposed in parallel with the tension roller 210. Wherein, the adsorption roller 100 is used for adsorbing the foil 500 flattened on the surface thereof. The coating system further comprises a coating die 400 for applying the slurry to the foil 500. In the operation of the coating system, the foil 500 can be driven by the rotation of the suction roller 100 to move from the tension roller 210 to the suction roller 100, and the coating die 400 is adapted to coat the slurry to the foil 500 tensioned between the tension roller 210 and the suction roller 100 in a suspended state.
The adsorption roller can closely adsorb the foil on the surface of adsorption roller, guarantees at the coating in-process, and after the coating die head extrudeed out the thick liquids, the deformation degree of foil can be controlled when the thick liquids fall to the foil surface, guarantees that the coating is even.
Referring to fig. 2, in some embodiments of the present application, the suction roller 100 is a vacuum suction roller 100, and the suction roller 100 is provided with a plurality of suction holes 120 in a body thereof. Through with the inside evacuation of adsorption roller 100, can be with the flat and inseparable absorption of the foil 500 on its surface on adsorbing hole 120, prevent that foil 500 from taking place excessive deformation problem to guarantee that the coating is even.
Referring to fig. 2, in some embodiments of the present application, the suction roller 100 has a vacuum tube 130 connected to one end thereof and a motor 110 connected to the other end thereof. The motor 110 drives the evacuation tube 130 at the other end to evacuate the interior air of the adsorption roller, thereby evacuating the interior of the adsorption roller 100 and realizing the adsorption of the adsorption roller 100.
Referring to FIG. 2, in some embodiments of the present application, the adsorption holes 120 are circular holes having a diameter of 0.2mm to 1 mm. The round hole is convenient to process, and the adsorption effect can be effectively improved. In some embodiments, the adsorption holes 120 are circular holes of 0.5mm in diameter. It is understood that the suction hole 120 may be configured with other shapes and sizes according to circumstances, and is not limited thereto.
In some embodiments of the present application, the coating system further comprises a tension adjusting mechanism, and the tension adjusting mechanism 300 comprises a fixed roller 310 and an oscillating roller 320, and the oscillating roller 320 can act on the surface of the foil 500 passing through the fixed roller 310 by moving relative to the fixed roller 310 to adjust the stretching tension of the foil 500. It is understood that the oscillating roller 320 acts on the surface of the foil 500 passing through the fixed roller 310 herein, and does not mean that the oscillating roller 320 directly contacts the fixed roller 310 to act on the surface of the foil 500, but adjusts the degree of tension of the foil 500 to be coated by moving the oscillating roller 320 to tighten or loosen the foil 500. Referring to fig. 1, in some embodiments, the oscillating roller 320 is one, the fixed rollers 310 are two, and the oscillating roller 320 is disposed between the two fixed rollers 310 and moves left and right with respect to the two fixed rollers 310, thereby achieving the purpose of adjusting the tension of the foil 500. It is understood that the number of the oscillating rollers 320 may be two, and the two oscillating rollers 320 move in opposite directions to further tension the foil 500, so as to achieve the purpose of adjusting the tension of the foil 500.
Referring to fig. 1, further, the coating system further includes a connecting plate 330, the oscillating roller 320 is fixed at one end of the connecting plate 330, the other end of the connecting plate 330 is connected with an air cylinder 340, and the air cylinder 340 is used for pushing the connecting plate 330 and the oscillating roller 320, so that the oscillating roller 320 can move relative to the two fixed rollers 310, thereby realizing the adjustment of the tension degree of the foil 500 to be coated.
Referring to fig. 1, in some embodiments of the present application, the coating system further includes a tension sensor 220, the tension sensor 220 is disposed at the bottom of the tension roller 210, and the tension sensor 220 is used for detecting the stretching tension of the foil 500. The tension sensor 220 detects the tension of the foil 500 at the time of coating and checks whether the foil 500 is always in a state of tension required for coating.
Referring to fig. 1, in some embodiments of the present application, the coating system further includes a control mechanism 600, and the control mechanism 600 is electrically connected to the tension sensor 220 and the air cylinder 340, respectively. The control mechanism 600 is configured to collect the tension detection result of the foil 500 fed back from the tension sensor 220 at the time of extrusion coating, and feed back the detected tension detection result to the control mechanism 600, thereby controlling the air cylinder 340 so that the oscillating roller 320 moves to perform constant tension adjustment control.
In some embodiments of the present application, the coating system further comprises a limiting assembly 350, the limiting assembly 350 being configured to limit the range of movement of the web. Referring to fig. 1, in some embodiments, the limiting members 350 are two limiting blocks, and are respectively disposed on two sides of the connecting plate 330. It is understood that the limiting component may also be a pulling rope, a spring, or other components capable of limiting the movement of the connecting plate, and is not limited thereto. The stop assembly 350 is used to limit the movement of the connecting plate 330, thereby defining the range of movement of the oscillating roller 320.
Referring to fig. 1, in some embodiments of the present application, the output torque of the adsorption roller 100 in the case of satisfying the adsorption effect ranges from 0 to 100N × M. It is understood that the suction roll 100 may adopt different types of suction rolls 100 with different output torque ranges according to circumstances to meet different coating requirements, which is not limited to this.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments described above, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Referring to fig. 1 and 2, a coating system according to an embodiment of the present application will be described in detail as a specific embodiment. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting.
The coating system is used for slurry coating of a foil 500, comprising: a tension roller 210 for tensioning the foil 500, and an adsorption roller 100 disposed in parallel with the tension roller 210. Wherein, the adsorption roller 100 is used for adsorbing the foil 500 flattened on the surface thereof. The coating system further comprises a coating die 400 for applying the slurry to the foil 500. In the operation of the coating system, the foil 500 can be driven by the rotation of the suction roller 100 to move from the tension roller 210 to the suction roller 100, and the coating die 400 is adapted to coat the slurry to the foil 500 tensioned between the tension roller 210 and the suction roller 100 in a suspended state. The suction roller 100 is a vacuum suction roller 100, and the suction roller 100 is provided with a plurality of suction holes 120 in its main body. One end of the adsorption roller 100 is connected to a vacuum tube 130, and the other end is connected to a motor 110. The adsorption holes 120 are circular holes having a diameter of 0.2mm to 1 mm. The coating system further includes a tension adjusting mechanism 300 including a fixed roller 310 and an oscillating roller 320, the oscillating roller 320 being movable relative to the fixed roller 310, the foil 500 being wound around the fixed roller 310 and the oscillating roller 320 and being capable of adjusting a tensile tension of the foil 500 as the oscillating roller 320 moves. The coating system further includes a connecting plate 330, the oscillating roller 320 is fixed to one end of the connecting plate 330, and an air cylinder 340 is connected to the other end of the connecting plate 330, and the air cylinder 340 is used for pushing the connecting plate 330 and the oscillating roller 320 so that the oscillating roller 320 can move relative to the two fixed rollers 310. The coating system further comprises a tension sensor 220, the tension sensor 220 is arranged at the bottom of the tension roller 210, and the tension sensor 220 is used for detecting the stretching tension of the foil 500. The coating system further comprises a control mechanism 600, and the control mechanism 600 is electrically connected with the tension sensor 220 and the air cylinder 340 respectively. The coating system further includes a limiting assembly 350, the limiting assembly 350 for limiting the range of movement of the web. The output torque of the adsorption roller 100 ranges from 0 to 100N × M.
According to the coating system of the embodiment of the application, at least some effects as follows can be achieved by the arrangement: the adsorption roller 100 can closely adsorb the foil 500 on the surface of the adsorption roller 100, and the deformation degree of the foil can be controlled when the slurry falls on the surface of the foil after the coating die head 400 extrudes the slurry in the coating process, so that the coating is ensured to be uniform.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, those of ordinary skill in the art will understand that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and the equivalents.
Claims (10)
1. A coating system for slurry coating a foil, comprising:
a tensioning roller for tensioning the foil;
the adsorption roller is arranged in parallel with the tensioning roller and is used for adsorbing the foil flattened on the surface of the adsorption roller; a coating die head for coating the slurry on the foil;
wherein the foil is drivable by rotation of the suction roller to move from the tension roller to the suction roller, and the coating die is adapted to coat the foil tensioned between the tension roller and the suction roller in a suspended state with a slurry.
2. The coating system of claim 1, wherein: the adsorption roller is a vacuum adsorption roller, and the adsorption roller main body is provided with a plurality of adsorption holes.
3. The coating system of claim 2, wherein: one end of the adsorption roller is connected with a vacuum tube, and the other end of the adsorption roller is connected with a motor.
4. The coating system of claim 2, wherein: the adsorption holes are round holes with the diameter of 0.2mm-1 mm.
5. The coating system of claim 1, wherein: the foil stretching device is characterized by further comprising a tension adjusting mechanism, wherein the tension adjusting mechanism comprises a fixed roller and a swinging roller, and the swinging roller can move relative to the fixed roller so as to act on the surface of the foil passing through the fixed roller to adjust the stretching tension of the foil.
6. The coating system of claim 5, wherein: the swing roller is fixed at one end of the connecting plate, the other end of the connecting plate is connected with an air cylinder, and the air cylinder is used for pushing the connecting plate and the swing roller, so that the swing roller can move relative to the two fixed rollers.
7. The coating system of claim 6, wherein: still include tension sensor, tension sensor set up in the tensioning roller bottom, tension sensor is used for detecting the tensile tension of foil.
8. The coating system of claim 7, wherein: the tension sensor is electrically connected with the cylinder.
9. The coating system of claim 6, wherein: the connecting plate is characterized by further comprising a limiting assembly, and the limiting assembly is used for limiting the movement of the connecting plate.
10. The coating system of claim 1, wherein: the output torque of the suction roll ranges from 0 to 100N M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022865257.7U CN214600086U (en) | 2020-12-03 | 2020-12-03 | Coating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022865257.7U CN214600086U (en) | 2020-12-03 | 2020-12-03 | Coating system |
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| Publication Number | Publication Date |
|---|---|
| CN214600086U true CN214600086U (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022865257.7U Active CN214600086U (en) | 2020-12-03 | 2020-12-03 | Coating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643166A (en) * | 2022-03-07 | 2022-06-21 | 江苏中关村嘉拓新能源设备有限公司 | Two-sided coating unit simultaneously of L type |
| CN114769069A (en) * | 2022-04-29 | 2022-07-22 | 广东嘉拓自动化技术有限公司 | Contact die head of follower roll |
| WO2023217000A1 (en) * | 2022-05-13 | 2023-11-16 | 宁德时代新能源科技股份有限公司 | Coating device |
-
2020
- 2020-12-03 CN CN202022865257.7U patent/CN214600086U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643166A (en) * | 2022-03-07 | 2022-06-21 | 江苏中关村嘉拓新能源设备有限公司 | Two-sided coating unit simultaneously of L type |
| CN114643166B (en) * | 2022-03-07 | 2024-03-15 | 江苏嘉拓新能源智能装备股份有限公司 | L-shaped double-sided simultaneous coating device |
| CN114769069A (en) * | 2022-04-29 | 2022-07-22 | 广东嘉拓自动化技术有限公司 | Contact die head of follower roll |
| WO2023217000A1 (en) * | 2022-05-13 | 2023-11-16 | 宁德时代新能源科技股份有限公司 | Coating device |
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |