Coating device for lithium battery processing

Abstract

The utility model discloses a coating device for processing a lithium battery. The coating device comprises a workbench, a coating mechanism and a stirring mechanism, a material box bottom plate is arranged on the front side of the upper end of the workbench, and material box side plates are slidably connected to the left end and the right end of the material box bottom plate; the coating mechanism is arranged at the upper end of the workbench, and a whole formed by the material box bottom plate and the material box side plates is located at the front end of the coating mechanism; the stirring mechanism comprises a heating and stirring assembly, the heating and stirring assembly comprises a first heating rod, a fixing base, a second heating rod, a stirring head and a third heating rod, the stirring head capable of sliding left and right is arranged on the front side of the upper end of the workbench, and the fixing base is fixedly connected to the front side of the upper surface of the stirring head. The viscosity of the raw materials is reduced through the stirring mechanism with the heating head, meanwhile, the coating width can be adjusted, and the stirring head can adjust the stirring range in a self-adaptive mode according to the coating width.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery processing technical field, concretely is with coating device for lithium battery processing. BACKGROUND

[0002] The coating machine is a kind of mechanical equipment, which is used to coat a layer of glue, paint or ink with special functions on the base material such as paper, cloth, leather, aluminum foil and plastic film, and then dry and wind up. The production of mask needed during the epidemic can be understood as forming through coating process. The raw materials of power lithium battery are coated on the conductive substrate of the battery by coating device, and the positive and negative electrode sheets of lithium battery are produced by this coating method.

[0003] The coating device for lithium battery processing usually adopts a transfer coating method. The coating roller rotates to drive the slurry, and the back roller and the coating roller rotate in opposite directions to transfer the slurry to the moving foil to form a coating layer. In order to ensure the uniformity of the slurry, a stirring mechanism is usually added at the upper end of the material box to stir the slurry. However, the stirring shaft moves in a straight line, and the stirring shaft is only a single shaft, so the stirring effect is limited. At the same time, the shape of the material box is fixed, and the width of the coating layer is difficult to change. After changing, the program of the stirring mechanism needs to be adjusted to adapt to the width of the coating layer, which is troublesome. Therefore, we propose a coating device for lithium battery processing. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a coating device for lithium battery processing. The stirring mechanism with a heating head reduces the viscosity of the raw materials, and the width of the coating can be adjusted. The stirring head can adjust the stirring range according to the coating width, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coating device for lithium battery processing includes a workbench, a coating mechanism and a stirring mechanism.

[0006] Workbench: the front side of its upper end is provided with a material box bottom plate, and the left and right ends of the material box bottom plate are both slidably connected with material box side plates.

[0007] Coating mechanism: it is arranged at the upper end of the workbench, and the whole formed by the material box bottom plate and the material box side plates is located at the front end of the coating mechanism.

[0008] Stirring mechanism: it includes a heating stirring assembly, the heating stirring assembly includes heating rod one, fixed seat, heating rod two, stirring head and heating rod three, the front side of the upper end of the workbench is provided with a left and right slidable stirring head, the front side of the upper surface of the stirring head is fixedly connected with the fixed seat, the lower end of the fixed seat is provided with heating rod one, heating rod two and heating rod three which are distributed in a triangular shape, the viscosity of the raw material is reduced through the stirring mechanism with heating head, and meanwhile the width of coating can be adjusted, and the stirring head can adaptively adjust the stirring range according to the coating width.

[0009] Further, the controller is arranged on the left side of the workbench, the input end of the controller is electrically connected with the external power supply, and the control appliance is controlled.

[0010] Further, the stirring mechanism further includes a slide column, a lead screw, a sliding block and a motor three, the left and right sides of the upper end of the workbench are fixedly connected with front and rear distributed slide columns, the left and right sides of the upper end of the workbench are rotatably connected with lead screws, the sliding block is slidably connected between the two slide columns, the middle part of the sliding block is threadedly connected with the middle part of the lead screw, the lower end of the sliding block is fixedly connected with the stirring head, the right side surface of the workbench is fixedly connected with the motor three, the output shaft of the motor three is fixedly connected with the right end of the lead screw, the input end of the motor three is electrically connected with the output end of the controller, and the stirring head is driven to move.

[0011] Further, the front end of the fixed seat is inserted with heating rod one which is symmetrically distributed left and right, the rear end of the fixed seat is inserted with heating rod two which is symmetrically distributed left and right, the rear end of the stirring head is inserted with heating rod three which is symmetrically distributed left and right, the straight line where the central axis of the heating rod one is located and the straight line where the central axis of the heating rod two is located are both parallel to the upper surface of the material box bottom plate, the heating rod three is vertically arranged, the input ends of the heating rod one, the heating rod two and the heating rod three are all electrically connected with the output end of the controller, and the contact area is increased.

[0012] Further, the left and right sides of the lower end of the sliding block are both fixedly connected with touch plates, the upper ends of the material box side plates are all threadedly connected with limit switches, the limit switches are respectively left and right position corresponding with the left and right adjacent touch plates, the limit switches are both bidirectionally electrically connected with the controller, and the position of the sliding block is detected.

[0013] Further, the coating mechanism includes a comma doctor blade, a coating roller, a back roller, a motor one and a motor two, the left and right ends of the workbench are rotatably connected with the coating roller and the back roller, the left and right ends of the workbench are fixedly connected with the comma doctor blade, the comma doctor blade is located at the upper end of the coating roller, the back roller is located at the rear end of the coating roller, the lower end of the material box bottom plate and the rear end of the material box side plate are both tangent to the outer arc surface of the coating roller, the right side surface of the workbench is fixedly connected with the motor one and the motor two, the output shaft of the motor one is fixedly connected with the right end of the coating roller, the output shaft of the motor two is fixedly connected with the right end of the back roller, the input ends of the motor one and the motor two are electrically connected with the output end of the controller, and coating is realized.

[0014] Further, the inner wall of the left and right sides of the workbench is fixedly connected with a bottom plate fixing seat, a material box bottom plate is inserted between the two bottom plate fixing seats, the lower end of the bottom plate fixing seat is threadedly connected with uniformly distributed fixing bolts one, the studs of the fixing bolts one are in contact with the lower surface of the material box bottom plate, and the material box bottom plate is fixed.

[0015] Further, the lower surface of the material box side plate is threadedly connected with uniformly distributed fixing bolts two, the studs of the fixing bolts two are in contact with the lower surface of the material box bottom plate, and the material box side plate is fixed.

[0016] Further, the upper surface of the workbench is placed with a collection frame, the collection frame is located at the lower end of the coating roller and the back roller, and the coating raw material is collected.

[0017] Compared with the prior art, the coating device for lithium battery processing has the following advantages:

[0018] 1. The coating raw material in the whole interior composed of the material box bottom plate and the material box side plate is stirred by the stirring head with three groups of heating rods, the heating rod one, the heating rod two and the heating rod three form a triangular structure, so that the contact area with the coating raw material is greatly increased, the heating range is improved, and the viscosity of the raw material is reduced.

[0019] 2. The installation position of the material box side plate is adjusted by the fixing bolts two, different width coating is realized, the position detection of the material box side plate is realized by the limit switch, after the touch plate contacts the adjacent limit switch, the slider automatically changes direction, and the self-adaptive adjustment of the stirring range is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is a sectional view structural schematic view of the utility model;

[0022] Figure 3 It is an enlarged structural schematic view of A of the utility model;

[0023] Figure 4 It is an enlarged structural schematic view of B of the utility model.

[0024] In the drawing: 1 workbench, 2 coating mechanism, 21 comma doctor blade, 22 coating roller, 23 back roller, 24 motor one, 25 motor two, 3 stirring mechanism, 31 sliding column, 32 screw rod, 33 sliding block, 34 heating and stirring assembly, 341 heating rod one, 342 fixing seat, 343 heating rod two, 344 stirring head, 345 heating rod three, 35 motor three, 4 collection frame, 5 material box bottom plate, 6 bottom plate fixing seat, 7 fixing bolt one, 8 fixing bolt two, 9 material box side plate, 10 limit switch, 11 touch plate, 12 controller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 This embodiment provides a technical solution: a coating device for lithium battery processing, including a worktable 1, a coating mechanism 2 and a stirring mechanism 3;

[0027] Workbench 1: A material box base plate 5 is provided on the front side of its upper end. Material box side plates 9 are slidably connected to both ends of the material box base plate 5. Base plate fixing seats 6 are fixedly connected to the inner walls of both sides of the workbench 1. Material box base plate 5 is inserted between the two base plate fixing seats 6. The lower end of the base plate fixing seat 6 is threaded with evenly distributed fixing bolts 1 7. The studs of fixing bolts 1 7 are in contact with the lower surface of the material box base plate 5. The lower surface of the material box side plates 9 is threaded with evenly distributed fixing bolts 2 8. The studs of fixing bolts 2 8 are in contact with the lower surface of the material box base plate 5. A collection frame 4 is placed on the upper surface of the workbench 1. The collection frame 4 is located at the lower end of the coating roller 22 and the back roller 23.

[0028] Coating mechanism 2: It is located at the upper end of the workbench 1. The material box bottom plate 5 and the material box side plate 9 are located at the front end of the coating mechanism 2. The coating mechanism 2 includes a comma doctor blade 21, a coating roller 22, a back roller 23, a motor 1 24, and a motor 25. The coating roller 22 and the back roller 23 are rotatably connected between the left and right ends of the workbench 1. The comma doctor blade 21 is fixedly connected between the left and right ends of the workbench 1. The comma doctor blade 21 is located at the upper end of the coating roller 22, and the back roller 23 is located at the rear end of the coating roller 22. The lower end of the material box bottom plate 5 and the rear end of the material box side plate 9 are tangent to the outer arc surface of the coating roller 22. The right side of the workbench 1 is fixedly connected to the motor 1 24 and the motor 25. The output shaft of the motor 1 24 is connected to the right end of the coating roller 22. The output shaft of motor 25 is fixedly connected to the right end of back roller 23. The input ends of motor 1 24 and motor 2 25 are electrically connected to the output end of controller 12. Coating material is poured into the interior of the material box bottom plate 5 and material box side plate 9. The output shaft of motor 1 24 drives coating roller 22 to rotate clockwise, and motor 2 25 drives back roller 23 to rotate counterclockwise. Back roller 23 drives lithium battery conductive substrate forward. Coating material adheres to the outer arc surface of coating roller 22. Comma scraper 21 scrapes off excess material. Then, after the coating material comes into contact with lithium battery conductive substrate, it is transferred to the contact surface of lithium battery conductive substrate to achieve coating. After coating by coating roller 22, the remaining coating material is scraped off by material box bottom plate 5 and falls into the interior of collection frame 4.

[0029] The stirring mechanism 3 includes a heating and stirring assembly 34, which comprises a heating rod 341, a fixed base 342, a second heating rod 343, a stirring head 344, and a third heating rod 345. A stirring head 344, which can slide left and right, is provided on the front side of the upper end of the worktable 1. A fixed base 342 is fixedly connected to the front side of the upper surface of the stirring head 344. Heating rods 341, 343, and 345, arranged in a triangular pattern, are provided on the lower end of the fixed base 342. The stirring mechanism 3 also includes a sliding column 31, a lead screw 32, a slider 33, and a motor 35. Sliding columns 31, arranged front and back, are fixedly connected between the left and right sides of the upper end of the worktable 1. A lead screw 32 is rotatably connected between the left and right sides of the upper end of the worktable 1. A slider 33 is slidably connected between the two parts. The middle part of the slider 33 is threadedly connected to the middle part of the lead screw 32. A stirring head 344 is fixedly connected to the lower end of the slider 33. A motor 35 is fixedly connected to the right side of the worktable 1. The output shaft of the motor 35 is fixedly connected to the right end of the lead screw 32. The input end of the motor 35 is electrically connected to the output end of the controller 12. A heating rod 341 is symmetrically distributed on both sides at the front end of the fixed base 342. A heating rod 343 is symmetrically distributed on both sides at the rear end of the fixed base 342. A heating rod 345 is symmetrically distributed on both sides at the rear end of the stirring head 344. The straight line containing the central axis of the heating rod 341 and the straight line containing the central axis of the heating rod 343 are both parallel to the upper surface of the bottom plate 5 of the material box. The straight line containing the central axis and the straight line containing the central axis of heating rod 343 are parallel to the wide side of the bottom plate 5 of the material box. Heating rod 345 is vertically set. The input ends of heating rod 1 341, heating rod 2 343 and heating rod 345 are all electrically connected to the output end of controller 12. Touch plates 11 are fixedly connected to the left and right sides of the lower end of slider 33. Limit switches 10 are threadedly connected to the upper end of the side plate 9 of the material box. The limit switches 10 correspond to the left and right positions of the adjacent touch plates 11 respectively. The limit switches 10 are all bidirectionally electrically connected to controller 12. During coating, the output shaft of motor 35 drives the lead screw to rotate, and slider 33 slides between two sliding columns 31, driving heating rod 1 341, heating rod 2 343 and heating rod 345 to the bottom plate 5 of the material box. The coating material inside the integrated unit consisting of the material box side plate 9 is stirred. At the same time, heating rods 341, 343, and 345 heat the coating material to reduce its viscosity. The heating rods 341, 343, and 345 on the left and right sides form a triangular structure, which greatly increases the contact area with the coating material and improves the stirring efficiency. The slider 33 drives the two touch plates 11 to move synchronously. When the touch plate 11 touches the limit switch 10 on the same side, the limit switch 10 feeds back the position of the slider 33 to the controller 12. The output shaft of motor 35 reverses, driving the slider 33 and the stirring head 344 to move in the opposite direction until they touch the limit switch 10 on the other side. Similarly, the slider 33 and the stirring head 344 turn around and continue stirring.

[0030] It also includes a controller 12, which is located on the left side of the workbench 1, and the input terminal of the controller 12 is electrically connected to an external power supply.

[0031] The working principle of the coating device for lithium battery processing provided by this utility model is as follows: In use, the bottom plate 5 of the material box is inserted between two bottom plate fixing seats 6, and the side plates 9 of the material box are inserted on the left and right sides of the bottom plate 5. The positions of the bottom plate 5 and the side plates 9 are adjusted so that the lower end of the bottom plate 5 and the rear end of the side plate 9 are tangent to the outer arc surface of the coating roller 22. At the same time, the relative distance between the two side plates 9 is adjusted to be the same as the coating width. Then, the bottom plate 5 is fixed by fixing bolt 1 7 and the side plates 9 are fixed by fixing bolt 2 8. After installation, the lithium battery conductive substrate is passed between the coating roller 22 and the back roller 23. Coating material is poured into the integral part consisting of the bottom plate 5 and the side plate 9 of the material box. The output shaft of motor 1 24 drives the coating roller 22 to rotate clockwise, and motor 25 drives the back roller 23 to rotate counterclockwise. The back roller 23 moves the lithium battery conductive substrate forward. The coating material adheres to the outer arc surface of the coating roller 22. The comma-shaped scraper 21 scrapes off the excess material. Then, the coating material is transferred to the contact surface of the lithium battery conductive substrate after contact, thus achieving coating. After coating by the coating roller 22, the remaining coating material is scraped off by the bottom plate 5 of the material box and falls into the collection frame 4. During coating, the output shaft of motor 35 drives the lead screw to rotate, and the slider 33 slides between the two sliding columns 31, driving heating rods 1 341, 2 343, and 3 345 to stir the coating material inside the material box bottom plate 5 and the material box side plate 9. At the same time, heating rods 1 341, 2 343, and 3 345 heat the coating material to reduce its viscosity. Heating is carried out on both sides. The triangular structure formed by heating rod 341, heating rod 343, and heating rod 345 greatly increases the contact area with the coating material, thereby improving the stirring efficiency. The slider 33 drives the two touch plates 11 to move synchronously. When the touch plates 11 contact the limit switch 10 on the same side, the limit switch 10 feeds back the position of the slider 33 to the controller 12. The output shaft of motor 35 reverses, driving the slider 33 and the stirring head 344 to move in the opposite direction until they contact the limit switch 10 on the other side. Similarly, the slider 33 and the stirring head 344 turn to continue stirring.

[0032] It is worth noting that the controller 12 disclosed in the above embodiments can be an AT32F4212C8T7, the heating rod 341, the heating rod 343, and the heating rod 345 can all be YHYJ miniature heating rods, the motor 24 and the motor 25 can both be FF27DR63 geared motors, the motor 35 can be a 90BYG450D-EX stepper motor, and the limit switch 10 can be a kycx-1 limit switch. The controller 12 controls the operation of the heating rod 341, the heating rod 343, the heating rod 345, the motor 24, the motor 25, the motor 35, and the limit switch 10 using methods commonly used in the prior art.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A coating device for lithium battery processing, characterized by: It includes workbench (1), coating mechanism (2) and stirring mechanism (3); The workbench (1) is provided with a magazine bottom plate (5) on the front side of the upper end, and the left and right ends of the magazine bottom plate (5) are both slidably connected with magazine side plates (9); The coating mechanism (2) is arranged on the upper end of the workbench (1), and the whole formed by the magazine bottom plate (5) and the magazine side plates (9) is located at the front end of the coating mechanism (2); The stirring mechanism (3) includes a heating and stirring assembly (34), which includes a heating rod one (341), a fixed seat (342), a heating rod two (343), a stirring head (344) and a heating rod three (345), the front side of the upper end of the workbench (1) is provided with a stirring head (344) that can slide left and right, the upper surface of the stirring head (344) is fixedly connected with the fixed seat (342), and the lower end of the fixed seat (342) is provided with the heating rod one (341), the heating rod two (343) and the heating rod three (345) in a triangular distribution.

2. The coating apparatus for processing lithium batteries according to claim 1, characterized by: It also includes a controller (12) arranged on the left side of the workbench (1), and the input end of the controller (12) is electrically connected with an external power supply.

3. The coating device for processing lithium batteries according to claim 2, characterized in that: The stirring mechanism (3) further includes a slide column (31), a lead screw (32), a sliding block (33) and a motor three (35), the left and right sides of the upper end of the workbench (1) are fixedly connected with front and rear distributed slide columns (31), the left and right sides of the upper end of the workbench (1) are rotatably connected with lead screws (32), the sliding block (33) is slidably connected between the two slide columns (31), the middle part of the sliding block (33) is threadedly connected with the middle part of the lead screw (32), the lower end of the sliding block (33) is fixedly connected with the stirring head (344), the right side of the workbench (1) is fixedly connected with the motor three (35), the output shaft of the motor three (35) is fixedly connected with the right end of the lead screw (32), and the input end of the motor three (35) is electrically connected with the output end of the controller (12).

4. The coating apparatus for processing lithium batteries according to claim 1, characterized by: The front end of the fixed seat (342) is inserted with the heating rod one (341) symmetrically distributed on the left and right, the rear end of the fixed seat (342) is inserted with the heating rod two (343) symmetrically distributed on the left and right, the rear end of the stirring head (344) is inserted with the heating rod three (345) symmetrically distributed on the left and right, the center axis of the heating rod one (341) is parallel to the center axis of the heating rod two (343), and the heating rod three (345) is vertically arranged, and the input ends of the heating rod one (341), the heating rod two (343) and the heating rod three (345) are all electrically connected with the output end of the controller (12).

5. The coating apparatus for processing lithium batteries according to claim 3, characterized in that: The left and right sides of the lower end of the sliding block (33) are both fixedly connected with touch plates (11), the upper ends of the magazine side plates (9) are all threadedly connected with limit switches (10), the limit switches (10) are respectively corresponded to the left and right positions of the adjacent touch plates (11) on the left and right, and the limit switches (10) are all bidirectionally electrically connected with the controller (12).

6. The coating apparatus for processing lithium batteries according to claim 2, characterized in that: The coating mechanism (2) includes comma doctor blade (21), coating roller (22), back roller (23), motor one (24) and motor two (25), the left and right ends of the workbench (1) are rotatably connected with the coating roller (22) and the back roller (23), the left and right ends of the workbench (1) are fixedly connected with the comma doctor blade (21), the comma doctor blade (21) is located at the upper end of the coating roller (22), the back roller (23) is located at the rear end of the coating roller (22), the lower end of the material box bottom plate (5) and the rear end of the material box side plate (9) are tangent to the outer arc surface of the coating roller (22), the right side of the workbench (1) is fixedly connected with motor one (24) and motor two (25), the output shaft of motor one (24) is fixedly connected with the right end of the coating roller (22), the output shaft of motor two (25) is fixedly connected with the right end of the back roller (23), the input end of motor one (24) and motor two (25) is electrically connected with the output end of the controller (12).

7. The coating apparatus for processing lithium batteries according to claim 1, characterized in that: The inner wall of the left and right sides of the workbench (1) is fixedly connected with the bottom plate fixing seat (6), the material box bottom plate (5) is inserted between the two bottom plate fixing seats (6), the lower end of the bottom plate fixing seat (6) is screwedly connected with the uniformly distributed fixing bolts one (7), the studs of the fixing bolts one (7) are in contact with the lower surface of the material box bottom plate (5).

8. The coating apparatus for processing lithium batteries according to claim 1, characterized by: The lower surface of the material box side plate (9) is screwedly connected with the uniformly distributed fixing bolts two (8), the studs of the fixing bolts two (8) are in contact with the lower surface of the material box bottom plate (5).

9. The coating apparatus for processing lithium batteries according to claim 1, characterized in that: The upper surface of the workbench (1) is placed with the collecting frame (4), and the collecting frame (4) is located at the lower end of the coating roller (22) and the back roller (23).

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