Coating device for pole piece

Abstract

The utility model discloses a coating device for a pole piece. The coating device comprises a coating assembly, a trough and a weighing device, wherein the coating assembly comprises a rubber roller, and the roller surface, close to the material groove, of the rubber roller is located in the material groove; in the vertical arrangement direction of the coating assembly, the material groove and the weighing device, the weighing device is arranged below the material groove, and the weighing device supports the coating assembly and the material groove so as to obtain the weight of the coating assembly and the weight of the material groove. According to the utility model, the problem that the accuracy of surface density data is reduced as data measured by a measurement method in the coating process of the existing pole piece has large deviation can be effectively improved.

Description

Technical Field

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

[0002] Surface coating technology refers to the technology of coating a layer of new material on the surface of the material. This technology is widely used in the field of battery pole production. With the maturity of technology, there are higher requirements for the control of process data. Obtaining the surface density of the pole piece during the coating process to obtain accurate data is the key to the coating process.

[0003] The current method for measuring surface density is to cut a standard sample, measure the weight difference before and after coating, and divide the weight difference by the area of ​​the standard sample to calculate the surface density of the coating. Due to differences in coating density and compaction, there are weight differences in the standard sample; or the area of ​​the standard sample is small, and there is an error in weight measurement, which leads to calculation deviation; or the sampling measurement method has a lag, and sampling can only be done after the oven, making it difficult to adjust the coating parameters in time.

[0004] It can be seen that the data measured according to the above measurement method have large deviations, which reduces the accuracy of the surface density data. Utility Model Content

[0005] In view of the above shortcomings of the prior art, the purpose of the utility model is to disclose a coating device for a pole piece, so as to improve the problem that the data measured by the existing measurement method of the pole piece during the coating process has a large deviation, which reduces the accuracy of the surface density data.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the utility model discloses a coating device for a pole piece, which comprises:

[0007] Coating components, troughs and weighers;

[0008] Wherein, the coating assembly comprises a rubber roller, and the roller surface of the rubber roller close to the material trough is located in the material trough;

[0009] Along the up-and-down arrangement direction of the coating component, the material trough and the weighing device, the weighing device is arranged below the material trough, and the weighing device supports the coating component and the material trough to obtain the weight of the two.

[0010] In one embodiment of the utility model, it further comprises a carrier plate, and the material trough and the rubber roller are both arranged on the carrier plate;

[0011] The weight device is connected to and supports the carrier plate through a connecting plate.

[0012] In one embodiment of the present invention, along the circumference of the weight device, one ends of a plurality of the connecting plates are spaced apart from each other to form a first open end, and the first open end is connected to the weight device;

[0013] The other ends of the plurality of connecting plates are spaced apart from each other to form a second open end, and the second open end supports and connects the carrier plate.

[0014] In one embodiment of the utility model, a plurality of the connecting plates are spaced apart and distributed to form a conical structure, the first opening end is a small opening end of the conical structure, and the second opening end is a large opening end of the conical structure.

[0015] In one embodiment of the utility model, it further includes a substrate, and the weight device is arranged on the substrate;

[0016] A second connecting frame is fixedly connected to the base plate, and the gravure roller in the coating assembly is rotatably connected to the second connecting frame.

[0017] In one solution of the utility model, a first connecting frame is fixedly connected to the carrier plate, and the rubber roller is rotatably connected to the first connecting frame;

[0018] Wherein, a driving source is arranged on the first connecting frame, and the driving source is drivingly connected to the rubber roller.

[0019] In one embodiment of the present invention, the coating assembly further comprises a scraper, one end of which is mounted on the carrier plate and a gap area is formed between the other end and the surface of the rubber roller;

[0020] And, the controller in the coating device is electrically connected to the weighing device;

[0021] The controller may allow the size of the gap area to be adjusted.

[0022] In one solution of the utility model, the carrier plate is also connected to a lifting mechanism, and the scraper is connected to the lifting mechanism.

[0023] In one embodiment of the utility model, the lifting mechanism includes a third connecting frame and a servo electric cylinder;

[0024] The third connecting frame is fixedly mounted on the carrier plate, the servo electric cylinder is fixedly connected to the third connecting frame, and

[0025] The scraper is fixedly connected to the cylinder rod of the servo electric cylinder;

[0026] Wherein, the servo electric cylinder is electrically connected to the controller and is used to adjust the size of the gap area between the scraper and the surface of the rubber roller.

[0027] In one embodiment of the present invention, the weighing device is an electronic weighing meter, and the weighing device is fixedly connected to the substrate;

[0028] It also includes a display, which is fixedly connected to the substrate, and the display is electrically connected to the controller in the coating device.

[0029] In summary, the utility model discloses a coating device for a pole piece, which is provided with a weight device, and uses the weight device to support the coating assembly and the material trough, obtain the weight of the two, and obtain the coating surface density of the pole piece in real time by measuring the change in the weight of the material in the material trough, and the measurement is timely and the measurement accuracy is high. At the same time, the measurement error caused by the difference in the coated pole piece itself can be reduced, so that the calculation result is more accurate.

[0030] Furthermore, the surface density can be displayed in real time on the display, so that the surface density of the coating can be understood at any time and adjustments can be made accordingly, thereby effectively improving the problem that during the coating process of the existing electrode, the data obtained by the cutting method is measured with large deviations, resulting in poor coating effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a structural schematic diagram of a coating device for a pole piece in one embodiment of the utility model;

[0033] Figure 2 It is a front view structural schematic diagram of a coating device for a pole piece in one embodiment of the utility model;

[0034] Figure 3 It is a schematic structural diagram of a side view of a coating device for a pole piece in one embodiment of the utility model.

[0035] Component number description

[0036] 100. Substrate;

[0037] 200, weigher; 210, connecting plate; 211, opening area; 220, carrier plate; 230, material trough;

[0038] 300, coating assembly; 310, gravure roller; 320, rubber roller; 330, scraper; 331, gap area;

[0039] 410, first connecting frame; 420, second connecting frame; 430, lifting mechanism; 431, third connecting frame; 432, servo electric cylinder;

[0040] 500. Display. DETAILED DESCRIPTION

[0041] The following is an explanation of the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0042] See also Figures 1 to 3 It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no substantive technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0043] See also Figures 1 to 3 The utility model discloses a coating device for a pole piece, which can be used to improve the problem that the data measured by the existing measurement method of the pole piece during the coating process has a large deviation, which will reduce the accuracy of the surface density data. Specifically, the coating device of the pole piece includes a coating assembly 300, a material trough 230 and a weighing device 200. Among them, the coating assembly 300 includes a gravure roller 310 and a rubber roller 320, and the roller surface of the rubber roller 320 close to the material trough 230 is located in the material trough 230, so that during the rotation of the rubber roller 320, its surface layer can be used to adhere to the glue liquid raw material located in the material trough 230. Along the upper and lower arrangement direction of the coating assembly 300, the material trough 230 and the weighing device 200, the weighing device 200 is arranged below the material trough 230, and the weighing device 200 supports the coating assembly 300 and the material trough 230 to obtain the weight of the two.

[0044] In the coating device of the electrode, a weigher 200 is provided, and is used to support the coating assembly 300 and the material trough 230, and the weight of the two is obtained. By measuring the change in the weight of the material in the material trough 230, the coating surface density of the electrode is obtained in real time, and the measurement is timely and accurate. At the same time, the measurement error caused by the difference in the coated electrode itself can be reduced, so that the calculation result is more accurate.

[0045] In some embodiments, a carrier plate 220 is further included, and the material trough 230 and the rubber roller 320 are both disposed on the carrier plate 220. The material trough 230 can be detachably fixedly connected to the carrier plate 220, so as to facilitate replacement of the material trough 230.

[0046] The weighing device 200 is connected to and supports the carrier plate 220 through a connecting plate 210. The connecting plate 210 may include a plurality of connecting plates 210, and an opening area 211 is formed between the plurality of connecting plates 210. One end of the connecting plate 210 is fixedly connected to the weighing device 200, and the other end is fixedly connected to the carrier plate 220. The stability of the connection between the weighing device 200 and the carrier plate 220 can be improved by enclosing a plurality of connecting plates 210.

[0047] Specifically, along the circumference of the weigher 200, one end of the plurality of connecting plates 210 is spaced apart from each other to form a first open end, which is connected to the weigher 200. The other ends of the plurality of connecting plates 210 are spaced apart from each other to form a second open end, which supports and connects the carrier plate 220.

[0048] Furthermore, a plurality of connecting plates 210 are spaced apart from each other to form a conical structure, wherein the first opening end is a small opening end of the conical structure, and the second opening end is a large opening end of the conical structure. By arranging the small opening end and the large opening end, the large opening end is used to bear the weight of the coating assembly 300 and the trough 230, and all the weight is fed back to the weighing device 200 in a timely manner.

[0049] In some embodiments, a substrate 100 is further included, and a weighing device 200 is disposed on the substrate 100. A second connecting frame 420 is fixedly connected to the substrate 100, and the gravure roller 310 in the coating assembly 300 is rotatably connected to the second connecting frame 420. By providing the substrate 100, the setting positions of the weighing device 200 and the gravure roller 310 in the coating assembly 300 are reasonably arranged, so as to ensure that the measurement purpose of the weighing device 200 is achieved and the coating process is better carried out.

[0050] Further, the carrier plate 220 is fixedly connected with a first connecting frame 410, and the rubber roller 320 is rotatably connected to the first connecting frame 410. A driving source is provided on the first connecting frame 410, and the driving source is transmission-connected to the rubber roller 320. Therefore, the driving source drives the rubber roller 320 to rotate.

[0051] The driving source may be a servo motor, and the servo motor is electrically connected to the controller. The controller may be used to adjust the working state of the driving source, and further adjust the rotation speed of the rubber roller 320. The specific structural form of the driving source may be determined according to actual needs, and is not limited thereto.

[0052] It should be noted that the gravure roller 310 and the rubber roller 320 are arranged in parallel, and the electrode for coating is inserted between the gravure roller 310 and the rubber roller 320 .

[0053] In some embodiments, the coating assembly 300 further includes a scraper 330, one end of which is mounted on the carrier plate 220, and a gap area 331 is formed between the other end and the surface of the rubber roller 320. In addition, the controller in the coating device is electrically connected to the weigher 200, wherein the controller allows the size of the gap area 331 to be adjusted. Therefore, according to different coating requirements, the size of the gap area 331 is adjusted, and the amount of glue on the surface of the rubber roller 320 is further adjusted.

[0054] In some embodiments, a lifting mechanism 430 is further connected to the carrier plate 220, and the scraper 330 is connected to the lifting mechanism 430. The lifting mechanism 430 includes a third connecting frame 431 and a servo electric cylinder 432; the third connecting frame 431 is fixedly mounted on the carrier plate 220, the servo electric cylinder 432 is fixedly connected to the third connecting frame 431, and the scraper 330 is fixedly connected to the cylinder rod of the servo electric cylinder 432. The servo electric cylinder 432 is electrically connected to the controller and is used to adjust the size of the gap area 331 between the scraper 330 and the surface of the rubber roller 320.

[0055] In some embodiments, the weighing device 200 is an electronic weighing meter, and the weighing device 200 is fixedly connected to the substrate 100. At the same time, a display 500 is also included, which is fixedly connected to the substrate 100, and the display 500 is electrically connected to the controller in the coating device. Among them, the weighing device 200 can allow the use of a precise electronic weighing meter. By using an electronic weighing meter, the accuracy of the weight during the measurement process can be effectively improved. And, by fixing the weighing device 200 to the substrate 100, the stability of the weighing device 200 during the measurement process can be effectively improved. The display 500 is electrically connected to the controller, so that the parameter data of different components can be obtained in time through the display 500.

[0056] See also Figures 1 to 3 In some embodiments, during the actual use of the device, first, the raw materials required for surface coating are added to the material trough 230, and the overall weight obtained by the weighing device 200 displayed on the display screen is obtained, and the weight is defined as G1. According to the actual surface coating width requirement, the surface coating width of the electrode is entered on the display screen, and the surface coating width is defined as H. It should be noted that the surface coating widths corresponding to the coating requirements of different electrodes are different. Furthermore, the solid content C of the surface coating material is manually entered. The device can obtain the running length L of the electrode, and the display screen can allow a new value G2 to be displayed. Based on the following formula: M = (G1-G2) / (L*H*C), the surface density M of the electrode surface coating can be obtained in a timely manner.

[0057] Therefore, through the surface density M displayed on the display screen, the surface density of the surface coating can be understood at any time and adjusted in time.

[0058] In summary, the utility model discloses a coating device for a pole piece, which is provided with a weight device 200, and is used to support a coating assembly 300 and a material tank 230, and obtain the weight of the two, and obtain the coating surface density of the pole piece in real time by measuring the change in the weight of the material in the material tank 230, and the measurement is timely and has high measurement accuracy. At the same time, the measurement error caused by the difference in the coated pole piece itself can be reduced, so that the calculation result is more accurate.

[0059] Furthermore, the display 500 can display the surface density in real time, so that the surface density of the coating can be understood at any time and adjusted accordingly, thereby effectively improving the problem that the existing electrode has a large data deviation during the coating process due to the cutting method, resulting in poor coating effect.

[0060] Therefore, the utility model effectively overcomes some practical problems in the prior art and has high utilization value and use significance.

[0061] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A coating device for a pole piece, characterized in that: include: A coating assembly (300), a material tank (230) and a weigher (200); Wherein, the coating assembly (300) comprises a rubber roller (320), and a roller surface of the rubber roller (320) close to the material trough (230) is located in the material trough (230); Along the vertical arrangement direction of the coating component (300), the material trough (230) and the weighing device (200), the weighing device (200) is arranged below the material trough (230), and the weighing device (200) supports the coating component (300) and the material trough (230) to obtain the weight of the two.

2. The coating device according to claim 1, characterized in that: It also includes a carrier plate (220), on which the material trough (230) and the rubber roller (320) are both arranged; The weighing device (200) is connected to and supports the carrier plate (220) via a connecting plate (210).

3. The coating device according to claim 2, characterized in that: Along the circumference of the weight device (200), one ends of a plurality of the connecting plates (210) are spaced apart from each other to form a first open end, and the first open end is connected to the weight device (200); The other ends of the plurality of connecting plates (210) are spaced apart from each other to form a second open end, and the second open end supports and connects to the carrier plate (220).

4. The coating device according to claim 3, characterized in that: The plurality of connecting plates (210) are spaced apart from each other to form a conical structure, the first opening end is a small opening end of the conical structure, and the second opening end is a large opening end of the conical structure.

5. The coating device according to claim 1, characterized in that: It also includes a base plate (100), and the weighing device (200) is arranged on the base plate (100); A second connecting frame (420) is fixedly connected to the substrate (100), and the gravure roller (310) in the coating assembly (300) is rotatably connected to the second connecting frame (420).

6. The coating device according to claim 2, characterized in that: A first connecting frame (410) is fixedly connected to the carrier plate (220), and the rubber roller (320) is rotatably connected to the first connecting frame (410); Wherein, a driving source is disposed on the first connecting frame (410), and the driving source is drivingly connected to the rubber roller (320).

7. The coating device according to claim 2, characterized in that: The coating assembly (300) further comprises a scraper (330), one end of which is mounted on the carrier plate (220) and a gap area (331) is formed between the other end and the surface of the rubber roller (320); And, the controller in the coating device is electrically connected to the weighing device (200); The controller may allow the size of the gap region (331) to be adjusted.

8. The electrode coating device according to claim 7, characterized in that: The carrier plate (220) is also connected to a lifting mechanism (430), and the scraper (330) is connected to the lifting mechanism (430).

9. The electrode coating device according to claim 8, characterized in that: The lifting mechanism (430) comprises a third connecting frame (431) and a servo electric cylinder (432); The third connecting frame (431) is fixedly mounted on the carrier plate (220), the servo electric cylinder (432) is fixedly connected to the third connecting frame (431), and The scraper (330) is fixedly connected to the cylinder rod of the servo electric cylinder (432); Wherein, the servo electric cylinder (432) is electrically connected to the controller and is used to adjust the size of the gap area (331) between the scraper (330) and the surface of the rubber roller (320).

10. The electrode coating device according to claim 5, characterized in that: The weighing device (200) is an electronic weighing meter, and the weighing device (200) and the base plate (100) are fixedly connected; It also includes a display (500) which is fixedly connected to the substrate (100), and the display (500) is electrically connected to a controller in the coating device.

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