Coating drying area discharging and winding device
The adjustment mechanism adjusts the gap and rotation torque of the friction contact roller and the discharge roller of the discharge roller of the coating drying area and the discharge roller of the drying area, which solves the wrinkle problems caused by the shrinkage of the pole sheet and the tension pulling, and improves the winding quality.
Patent Information
- Application Number
- CN202422303811.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-21
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-21
AI Technical Summary
During the coating process, when the pole sheet passes through the smear baking area to the discharge and winding, wrinkles occur due to baking shrinkage and belt tension pulling, affecting the winding quality.
A coating drying area discharge winding device is adopted, and the movable plate is driven to reciprocate the radial reciprocating movement of the drying area discharge roller through the adjustment mechanism, adjust the gap and rotational torque between the friction contact roller and the drying area discharge roller, and form a speed difference reaction force to solve the wrinkle problems caused by baking shrinkage and tension traction.
The coiling quality of the pole sheet is improved, the generation of wrinkles is reduced, and the finished product quality of the coating process is improved.
Smart Images
Figure CN223213446U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery processing equipment, in particular to a discharging and winding device in a coating and baking area. Background Art
[0002] With the rapid development of coating substrates, the rapid rise of the precision electronics industry and the new energy industry, the manufacturing of modern industrial products has put forward increasingly higher requirements for coating technology and coating environment. The substrates are thinner and have different temperature resistance conditions. Wrinkles are more likely to occur during the coating process, which brings greater challenges to process technology.
[0003] The existing positive and negative electrode substrates are coated with 8-10um aluminum foil for the positive electrode and 6-8um copper foil for the negative electrode. The positive and negative electrode slurries are sprayed on the A and B surfaces of the substrate through an extrusion die head. A blank gap is reserved in the middle and on both sides of the coated electrode as the positive and negative ears of the lithium battery (such as Figure 1 As shown in the figure, the coated electrode needs to pass through the drying area at 75°~115° to dry the slurry moisture, and finally be rolled up through traction tension. The blank area of the substrate will produce thermal expansion and contraction under the action of temperature and tension in the oven, and the effect of its own elasticity will cause the substrate itself to shrink, resulting in wrinkles in the rolled product. Therefore, when the substrate passes through the hot air and hot roller with temperature, it will produce a certain deformation. Since this deformation is irreversible, wrinkles such as bulging, concave and convex waves will appear. Utility Model Content
[0004] The purpose of the utility model is to provide a coating and baking zone discharge and winding device, which solves the problem of wrinkles caused by baking shrinkage and belt tension traction when the electrode passes through the coating and baking zone to the discharge and winding, and improves the winding quality.
[0005] The technical solution adopted by the coating and drying zone discharging and winding device disclosed in the present utility model is:
[0006] A coating and drying zone discharge and winding device comprises a main shaft, a circumferential sleeve of which is provided with a drying zone discharge roller, fixed vertical plates are provided at both ends of the main shaft, a fixed vertical plate at one end of the main shaft is provided with a fixed support, a movable plate is slidably plugged into the fixed support, an adjustment mechanism is provided on the fixed support, the adjustment mechanism is used to drive the movable plate to reciprocate along the radial direction of the drying zone discharge roller, a damper is provided on the movable plate, a friction contact roller is provided on the damper, the axis of the friction contact roller is arranged parallel to the axis of the drying zone discharge roller, and one end of the friction contact roller extends to the circumferential wall of the drying zone discharge roller.
[0007] As a preferred solution, the adjustment mechanism includes an adjusting knob, the middle part of the adjusting knob is threadedly connected to the fixed support, the end of the adjusting knob is movably connected to the movable plate, and the adjusting knob can drive the movable plate to reciprocate along the radial direction of the drying zone discharge roller by its own rotation.
[0008] As a preferred solution, bearings are embedded at both ends of the drying zone discharge roller, and the bearings are rotatably sleeved on the peripheral wall of the main shaft.
[0009] As a preferred solution, the peripheral wall of the main shaft is detachably provided with limiting rings at positions corresponding to both ends of the drying zone discharge roller.
[0010] As a preferred solution, the limiting ring is provided with an opening, and two ends of the opening are respectively provided with a threaded blind hole and a threaded through hole, and the limiting ring is locked to the peripheral wall of the main shaft by screws.
[0011] As a preferred solution, two discharge roller fixing rods are arranged side by side between the two fixed vertical plates, and the axes of the discharge roller fixing rods are arranged parallel to the axes of the discharge rollers in the drying zone.
[0012] As a preferred solution, a mounting plate is provided on the fixed vertical plate, and a mounting hole is opened on the mounting plate.
[0013] The beneficial effects of a coating and drying zone discharge and winding device disclosed by the utility model are as follows: the adjustment mechanism drives the movable plate to reciprocate along the radial direction of the drying zone discharge roller, and can adjust the gap between the peripheral wall of the friction contact roller and the peripheral wall of the drying zone discharge roller, referred to as the clamping amount. At the same time, the damper can set the size of the rotational force of the friction contact roller, referred to as the rotational torque. In summary, after determining the thickness of the coating substrate and the coating thickness, the compression amount and the rotational torque between the friction contact roller and the drying zone discharge roller can be set to generate a force, so that the running speed and tension of the drying zone discharge roller and the coating and winding tension form a speed difference reaction force, which solves the problem of wrinkles generated when the electrode passes through the coating baking zone to the discharge and winding due to baking shrinkage and belt tension traction, and improves the winding quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of a discharging and winding device in a coating and drying area of the utility model.
[0015] Figure 2 It is a cross-sectional view of a discharging and winding device in a coating and drying area of the utility model.
[0016] Figure 3 The utility model is a structural schematic diagram of a limit ring of a discharging and winding device in a coating and drying area.
[0017] 10. Spindle; 11. Fixed vertical plate; 12. Discharge roller fixing rod; 13. Mounting plate; 14. Mounting hole; 20. Discharge roller in the drying area; 30. Fixed support; 31. Movable plate; 32. Damper; 33. Friction contact roller; 34. Adjustment knob; 40. Limiting ring; 41. Threaded blind hole; 42. Threaded through hole. DETAILED DESCRIPTION
[0018] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:
[0019] Please refer to Figure 1 and Figure 2 A coating drying zone discharge and winding device includes a main shaft 10, a circumferential wall of the main shaft 10 is rotatably sleeved with a drying zone discharge roller 20, and both ends of the main shaft 10 are provided with a fixed vertical plate 11, and the fixed vertical plate 11 at one end of the main shaft 10 is provided with a fixed support 30, and a movable plate 31 is slidably inserted on the fixed support 30, and an adjustment mechanism is provided on the fixed support 30, which is used to drive the movable plate 31 to reciprocate along the radial direction of the drying zone discharge roller 20, and a damper 32 is provided on the movable plate 31, and a friction contact roller 33 is provided on the damper 32, and the axis of the friction contact roller 33 is arranged parallel to the axis of the drying zone discharge roller 20, and one end of the friction contact roller 33 extends to the circumferential wall of the drying zone discharge roller 20.
[0020] In the above scheme, the adjustment mechanism drives the movable plate 31 to reciprocate along the radial direction of the drying zone discharge roller 20, and can adjust the gap between the peripheral wall of the friction contact roller 33 and the peripheral wall of the drying zone discharge roller 20, referred to as the compression amount. At the same time, the damper 32 can set the rotational force of the friction contact roller 33, referred to as the rotational torque. In summary, after determining the thickness of the coating substrate and the coating thickness, the compression amount and the rotational torque between the friction contact roller 33 and the drying zone discharge roller 20 can be set to generate a force, so that the running speed and tension of the drying zone discharge roller 20 and the coating winding tension form a speed difference reaction force, which solves the problem of wrinkles caused by baking shrinkage and belt tension traction when the electrode passes through the coating baking zone to the discharge winding, thereby improving the winding quality.
[0021] Please refer to Figure 1 The adjustment mechanism includes an adjustment knob 34. The middle portion of the adjustment knob 34 is threadedly connected to the fixed support 30, and the end of the adjustment knob 34 is movably connected to the movable plate 31. The adjustment knob 34 rotates to drive the movable plate 31 to reciprocate radially along the drying zone discharge roller 20. The adjustment knob 34 is threadedly mounted on the fixed support 30. Rotating the adjustment knob 34 drives the movable plate 31 to move up and down, thereby adjusting the gap between the peripheral wall of the friction contact roller 33 and the peripheral wall of the drying zone discharge roller 20.
[0022] Specifically, bearings are embedded at both ends of the drying zone discharge roller 20, and the bearings are rotatably sleeved on the peripheral wall of the main shaft 10. The bearings can reduce the friction coefficient during the movement and ensure the rotation accuracy.
[0023] Please refer to Figure 2 and Figure 3 A retaining ring 40 is detachably mounted on the peripheral wall of the main shaft 10 at positions corresponding to both ends of the drying zone discharge roller 20. Specifically, the retaining ring 40 has an opening, with a threaded blind hole 41 and a threaded through hole 42 respectively formed at both ends of the opening. The retaining ring 40 is fastened to the peripheral wall of the main shaft 10 by screws.
[0024] In the above solution, the limiting ring 40 can limit the two ends of the drying zone discharge roller 20 to prevent the drying zone discharge roller 20 from sliding to both sides. Specifically, when the limiting ring 40 is sleeved on the peripheral wall of the main shaft 10, it can be locked by screws, making it easy to assemble and disassemble.
[0025] Specifically, two discharge roller fixing rods 12 are arranged side by side between the two fixed vertical plates 11, and the axes of the discharge roller fixing rods 12 are arranged parallel to the axes of the drying zone discharge rollers 20. In addition, a mounting plate 13 is provided on the fixed vertical plate 11, and a mounting hole 14 is opened on the mounting plate 13.
[0026] The utility model provides a coating and drying zone discharging and winding device, wherein the regulating mechanism drives a movable plate to reciprocate along the radial direction of the drying zone discharging roller, and can adjust the gap between the circumferential wall of the friction contact roller and the circumferential wall of the drying zone discharging roller, referred to as the pressing amount. At the same time, the damper can set the size of the rotational force of the friction contact roller, referred to as the rotating torque. In summary, after determining the thickness of the coating substrate and the coating thickness, the pressing amount and the rotating torque between the friction contact roller and the drying zone discharging roller can be set to generate a force, so that the running speed and tension of the drying zone discharging roller and the coating and winding tension form a speed difference reaction force, which solves the problem of wrinkles generated when the electrode passes through the coating baking zone to the discharging and winding due to baking shrinkage and belt tension traction, and improves the winding quality.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A coating and drying zone discharging and winding device, characterized in that: It includes a main shaft, a circumferential wall of the main shaft is rotatably sleeved with a drying zone discharge roller, both ends of the main shaft are provided with fixed vertical plates, the fixed vertical plate at one end of the main shaft is provided with a fixed support, a movable plate is slidably plugged into the fixed support, an adjustment mechanism is provided on the fixed support, the adjustment mechanism is used to drive the movable plate to reciprocate along the radial direction of the drying zone discharge roller, a damper is provided on the movable plate, a friction contact roller is provided on the damper, the axis of the friction contact roller is arranged parallel to the axis of the drying zone discharge roller, and one end of the friction contact roller extends to the circumferential wall of the drying zone discharge roller.
2. A coating and drying zone discharging and winding device according to claim 1, characterized in that: The adjustment mechanism includes an adjustment knob, the middle part of the adjustment knob is threadedly connected to the fixed support, the end of the adjustment knob is movably connected to the movable plate, and the adjustment knob can drive the movable plate to reciprocate along the radial direction of the drying zone discharge roller by its own rotation.
3. The coating and drying zone discharging and winding device according to claim 1, characterized in that: Both ends of the drying zone discharge roller are embedded with bearings, and the bearings are rotatably sleeved on the peripheral wall of the main shaft.
4. The coating and drying zone discharging and winding device according to claim 1, characterized in that: The peripheral wall of the main shaft is detachably sleeved with limiting rings at positions corresponding to both ends of the drying zone discharge roller.
5. The coating and drying zone discharging and winding device according to claim 4, characterized in that: The limiting ring is provided with an opening, and two ends of the opening are respectively provided with a threaded blind hole and a threaded through hole. The limiting ring is locked to the peripheral wall of the main shaft by screws.
6. The coating and drying zone discharging and winding device according to claim 1, characterized in that: Two discharging roller fixing rods are arranged side by side between the two fixed vertical plates, and the axes of the discharging roller fixing rods are arranged parallel to the axes of the discharging rollers in the drying zone.
7. The coating and drying zone discharging and winding device according to claim 1, characterized in that: The fixed vertical plate is provided with a mounting plate, and the mounting plate is provided with a mounting hole.