Feeding device of lithium battery coating machine

Abstract

The utility model relates to the technical field of lithium battery processing, in particular to a feeding device of a lithium battery coating machine, the upper end of the inner side of a supporting plate is rotatably connected with an unwinding roller, the right side of the upper end of a base is fixedly connected with a coating box, and the left side of the upper end of the coating box is spirally connected with an adjusting screw rod; the lower end of the adjusting screw rod is rotationally connected with a lifting frame, the right end of the inner side of the lifting frame is rotationally connected with a lifting clamping roller, and the lower left side of the interior of the coating box is rotationally connected with a supporting conveying roller. A lifting clamping roller can be attached to the upper end face of the lithium battery pole piece, a supporting conveying roller can rotate through rotation of a second motor, then automatic feeding treatment can be conducted on the lithium battery pole piece, excessive rotation of an unwinding roller can be avoided under the action of a pawl and an inner ratchet gear, and the winding effect is improved. And the tightening and straightening effect of the pole piece can be ensured in the feeding process.

Description

Technical Field

[0001] The utility model relates to a feeding device of a lithium battery coater, belonging to the technical field of lithium battery processing. Background Technique

[0002] In a lithium-ion battery, direct contact between the positive electrode material and the negative electrode material will cause the battery to short-circuit and pose a safety hazard. To avoid this situation, a separator or coating is usually required between the positive and negative electrodes of the lithium battery. The lithium battery coating technology is to coat a layer of coating between the positive and negative electrodes to play a role of isolation. Lithium battery coating can isolate the positive and negative electrodes, prevent direct contact and cause short-circuit, act as a stable layer of the battery electrolyte, protect the contact between the electrode and the electrolyte, improve the cycle life and safety performance of the battery, reduce the internal resistance of the battery, and improve the energy density and power density of the battery.

[0003] During the use of the existing lithium battery coater, various conveying rollers are usually used to convey the electrode plates during the coating process, and the stress needs to be adjusted repeatedly during this period, thereby increasing the operation difficulty of the lithium battery coater; and when processing the lithium battery by coating, dust and impurities are likely to adhere to the surface of the lithium battery electrode plate, which is likely to reduce the later production quality of the lithium battery. Content of the Utility Model

[0004] The purpose of the utility model is to provide a feeding device of a lithium battery coater to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The feeding device of the lithium battery coater includes a base, a support plate and a coating box. The left side of the upper end of the base is fixedly connected with a support plate. The upper end inside the support plate is rotatably connected with an unwinding roller. The right side of the upper end of the base is fixedly connected with a coating box. The left side of the upper end of the coating box is screwed with an adjusting screw rod. The lower end of the adjusting screw rod is rotatably connected with a lifting frame. The right end inside the lifting frame is rotatably connected with a lifting pinch roller. The lower left side inside the coating box is rotatably connected with a support conveying roller. The middle position inside the lifting frame is rotatably connected with a cleaning roller brush. The left end of the lifting frame is fixedly connected with a dust suction head.

[0007] Further, an elevating frame is fixedly connected to the outer side of the upper end of the lifting frame, and a first motor is fixedly connected to the upper end of the elevating frame. The output shaft of the first motor is fixedly connected with the adjusting screw rod.

[0008] Further, a second motor is fixedly connected to the left side of the front end of the coating box. The output shaft of the second motor is fixedly connected with the support conveying roller.

[0009] Further, a pawl is rotatably connected to the inner side of the front end shaft of the roll-out roller, an internal ratchet gear is slidably connected to the outer side of the pawl, and the internal ratchet gear is fixedly connected to the support plate.

[0010] Further, a dust suction box is fixedly connected to the upper left end of the coating box, a dust suction telescopic pipe is hermetically connected to the lower end of the dust suction box, and the dust suction telescopic pipe is hermetically connected to the dust suction end head.

[0011] Further, an exhaust frame is hermetically connected to the upper end of the dust suction box, an exhaust fan is fixedly connected to the lower side inside the exhaust frame, and a dust-proof filter screen is fixedly connected to the upper end inside the exhaust frame.

[0012] Further, a dust collection mesh frame is provided inside the dust suction box, a dust inlet pipe is fixedly connected to the lower end of the dust collection mesh frame, the dust inlet pipe is hermetically connected to the dust suction telescopic pipe, and a guiding cover plate is fixedly connected to the middle position inside the dust collection mesh frame.

[0013] The beneficial effects of the present invention are as follows:

[0014] By setting the rotation of the first motor, the adjusting screw can rotate, and the lifting frame can drive the lifting frame to move up and down, so that the lifting pinch roller can be attached to the upper end surface of the lithium battery electrode sheet. By rotating the second motor, the support conveying roller can rotate, and then, in cooperation with the action of the lifting pinch roller, the lithium battery electrode sheet can be automatically loaded, and the roll-out roller can rotate automatically. The pawl and the internal ratchet gear are provided to prevent the roll-out roller from rotating excessively, ensuring the straightening effect of the electrode sheet during the loading process, without the use of various stress adjustment devices, and ensuring the coating effect. By the lifting of the lifting frame, the cleaning roller brush can move up and down, and by driving the cleaning roller brush by an external driving device, the cleaning roller brush can perform surface cleaning on the lithium battery electrode sheet, so that the attached dust and impurities can be removed. By the rotation of the exhaust fan, the air flow can flow outward, and with the suction of the air flow, the dust suction telescopic pipe can absorb the dust cleaned by the dust suction end head, and the dust can enter the dust collection mesh frame, realizing the cleaning before coating the lithium battery electrode sheet and ensuring the production quality of the lithium battery. Description of the Drawings

[0015] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the specific embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention.

[0016] Figure 1 It is the front view of the loading device of the lithium battery coater of the present invention;

[0017] Figure 2 It is theFigure 1 Enlarged view of part A

[0018] Figure 3 It is a sectional view of the installation structure of the coating box of the feeding device of the lithium battery coater of the present utility model;

[0019] Figure 4 It is a sectional view of the installation structure of the dust suction box and the exhaust frame of the feeding device of the lithium battery coater of the present utility model;

[0020] Reference numerals in the figure: 1, base; 2, support plate; 3, unwind roller; 4, coating box; 5, adjusting screw; 6, lifting frame; 7, lifting pinch roller; 8, support conveying roller; 9, cleaning roller brush; 10, dust suction end; 11, lifting frame; 12, first motor; 13, second motor; 14, pawl; 15, internal ratchet gear; 16, dust suction box; 17, dust suction telescopic pipe; 18, exhaust frame; 19, exhaust fan; 20, dust collection screen frame; 21, dust inlet pipe; 22, guiding cover plate; 23, dust-proof filter screen. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Example 1 Please refer to Figures 1 - 4 and the present utility model provides a technical solution:

[0023] The feeding device of a lithium battery coater includes a base 1, a support plate 2, and a coating box 4. On the upper left side of the base 1, a support plate 2 is fixedly connected. At the upper inner side of the support plate 2, a roll-out roller 3 is rotatably connected. On the upper right side of the base 1, a coating box 4 is fixedly connected. On the upper left side of the coating box 4, an adjusting screw 5 is spirally connected. At the lower end of the adjusting screw 5, a lifting frame 6 is rotatably connected. At the right inner end of the lifting frame 6, a lifting pinch roller 7 is rotatably connected. At the lower left side inside the coating box 4, a support conveying roller 8 is rotatably connected. On the outer upper side of the lifting frame 6, a lifting bracket 11 is fixedly connected. At the upper end of the lifting bracket 11, a first motor 12 is fixedly connected. Between the output shaft of the first motor 12 and the adjusting screw 5, a fixed connection is made. On the front left side of the coating box 4, a second motor 13 is fixedly connected. Between the output shaft of the second motor 13 and the support conveying roller 8, a fixed connection is made. Inside the front end shaft body of the roll-out roller 3, a pawl 14 is rotatably connected. On the outer side of the pawl 14, an internal ratchet gear 15 is slidably connected. The internal ratchet gear 15 is fixedly connected to the support plate 2. By setting the rotation of the first motor 12, the adjusting screw 5 can rotate, and the lifting bracket 11 can drive the lifting frame 6 to move up and down, so that the lifting pinch roller 7 can fit on the upper end surface of the lithium battery electrode sheet. And by setting the rotation of the second motor 13, the support conveying roller 8 can rotate, and thus, in cooperation with the action of the lifting pinch roller 7, automatic feeding of the lithium battery electrode sheet can be performed, and the roll-out roller 3 can rotate automatically. The functions of the provided pawl 14 and internal ratchet gear 15 can prevent the roll-out roller 3 from rotating excessively, ensuring the straightening effect of the electrode sheet during the feeding process, without the use of various stress adjustment devices, and ensuring the coating effect.

[0024] Embodiment 2 Please refer to Figure 1 、 Figure 3 and Figure 4, the difference between this embodiment and Embodiment 1 lies in that: a cleaning roller brush 9 is rotatably connected to the middle position inside the lifting frame 6, a dust suction end 10 is fixedly connected to the left end of the lifting frame 6, a dust suction box 16 is fixedly connected to the upper left end of the coating box 4, a dust suction telescopic pipe 17 is hermetically connected to the lower end of the dust suction box 16, the dust suction telescopic pipe 17 is hermetically connected to the dust suction end 10, an exhaust frame 18 is hermetically connected to the upper end of the dust suction box 16, an exhaust fan 19 is fixedly connected to the lower side inside the exhaust frame 18, a dust-proof filter screen 23 is fixedly connected to the upper end inside the exhaust frame 18, a dust collection net frame 20 is arranged inside the dust suction box 16, a dust inlet pipe 21 is fixedly connected to the lower end of the dust collection net frame 20, and the dust inlet pipe 21 is hermetically connected to the dust suction telescopic pipe 17. A guiding cover plate 22 is fixedly connected to the middle position inside the dust collection net frame 20. By lifting the lifting frame 6, the cleaning roller brush 9 can move up and down, and by driving the cleaning roller brush 9 with an external driving device, the cleaning roller brush 9 can perform surface cleaning treatment on the lithium battery electrode sheet, so that the attached dust and impurities can be separated. By rotating the exhaust fan 19, the air flow can flow outward. With the suction of the air flow, the dust suction telescopic pipe 17 can absorb the dust cleaned through the dust suction end 10, and the dust can enter the dust collection net frame 20, realizing the cleaning before coating the lithium battery electrode sheet and ensuring the production quality of the lithium battery.

[0025] The working principle of the present utility model: When this device is in use, by setting the rotation of the first motor 12, the adjusting screw rod 5 can rotate, and the lifting frame 11 can drive the lifting frame 6 to move up and down, so that the lifting pinch roller 7 can be attached to the upper end surface of the lithium battery electrode sheet. By rotating the second motor 13, the supporting conveying roller 8 can rotate, and then, in cooperation with the action of the lifting pinch roller 7, automatic feeding of the lithium battery electrode sheet can be performed, and the unwinding roller 3 can rotate automatically. The functions of the provided ratchet 14 and internal ratchet gear 15 can prevent the unwinding roller 3 from rotating excessively, ensuring the straightening effect of the electrode sheet during the feeding process, without the use of various stress adjustment devices, ensuring the coating effect. By lifting the lifting frame 6, the cleaning roller brush 9 can move up and down, and by driving the cleaning roller brush 9 with an external driving device, the cleaning roller brush 9 can perform surface cleaning treatment on the lithium battery electrode sheet, so that the attached dust and impurities can be separated. By rotating the exhaust fan 19, the air flow can flow outward. With the suction of the air flow, the dust suction telescopic pipe 17 can absorb the dust cleaned through the dust suction end 10, and the dust can enter the dust collection net frame 20, realizing the cleaning before coating the lithium battery electrode sheet and ensuring the production quality of the lithium battery.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. The feeding device of a lithium battery coater, comprising a base (1), a support plate (2) and a coating box (4), characterized in that: On the upper left side of the base (1), a support plate (2) is fixedly connected. At the upper inner side of the support plate (2), a winding-out roller (3) is rotatably connected. On the upper right side of the base (1), a coating box (4) is fixedly connected. On the upper left side of the coating box (4), an adjusting screw rod (5) is spirally connected. At the lower end of the adjusting screw rod (5), a lifting frame (6) is rotatably connected. At the upper right inner side of the lifting frame (6), a lifting pinch roller (7) is rotatably connected. At the lower left side inside the coating box (4), a supporting conveying roller (8) is rotatably connected. At the middle position inside the lifting frame (6), a cleaning roller brush (9) is rotatably connected. At the left end of the lifting frame (6), a dust suction end head (10) is fixedly connected.

2. The feeding device of the lithium battery coater according to claim 1, characterized in that: On the outer side of the upper end of the lifting frame (6), a lifting frame (11) is fixedly connected. At the upper end of the lifting frame (11), a first motor (12) is fixedly connected. Between the output shaft of the first motor (12) and the adjusting screw rod (5), a fixed connection is made.

3. The feeding device of the lithium battery coater according to claim 1, characterized in that: On the front left side of the coating box (4), a second motor (13) is fixedly connected. Between the output shaft of the second motor (13) and the supporting conveying roller (8), a fixed connection is made.

4. The feeding device of the lithium battery coater according to claim 1, characterized in that: Inside the front end shaft body of the winding-out roller (3), a pawl (14) is rotatably connected. On the outer side of the pawl (14), an internal ratchet gear (15) is slidably connected. Between the internal ratchet gear (15) and the support plate (2), a fixed connection is made.

5. The feeding device of the lithium battery coater according to claim 1, wherein: On the upper left side of the coating box (4), a dust suction box (16) is fixedly connected. At the lower end of the dust suction box (16), a dust suction telescopic pipe (17) is hermetically connected. Between the dust suction telescopic pipe (17) and the dust suction end head (10), a hermetic connection is made.

6. The feeding device of the lithium battery coater according to claim 5, characterized in that: At the upper end of the dust suction box (16), an exhaust frame (18) is hermetically connected. At the lower side inside the exhaust frame (18), an exhaust fan (19) is fixedly connected. At the upper end inside the exhaust frame (18), a dust-proof filter screen (23) is fixedly connected.

7. The feeding device of the lithium battery coater according to claim 5, characterized in that: Inside the dust suction box (16), a dust collection net frame (20) is provided. At the lower end of the dust collection net frame (20), a dust inlet pipe (21) is fixedly connected. Between the dust inlet pipe (21) and the dust suction telescopic pipe (17), a hermetic connection is made. At the middle position inside the dust collection net frame (20), a guiding cover plate (22) is fixedly connected.

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