Flexible lithium battery electrode plate coating drying layer roller press

Abstract

The utility model relates to the technical field of battery processing equipment, in particular to a flexible lithium battery electrode plate coating drying layer roller press which comprises a rack, a pair of adjusting mechanisms, a pair of rotating rollers and a driving mechanism, and mounting grooves are formed in the two sides of the rack; a pair of mounting seats is mounted on each mounting groove, and the two mounting seats are arranged up and down; wedge-shaped abutting surfaces matched with each other are arranged on the sides, close to each other, of the two mounting seats in the same mounting groove; the pair of adjusting mechanisms is mounted on the side, located in each mounting groove, of the rack, and the adjusting end of each adjusting mechanism can abut against the mounting base on the lower portion in the corresponding mounting groove; the pair of rotating rollers can be rotationally mounted on the mounting seats corresponding to the mounting grooves respectively, and the two rotating rollers are arranged in parallel; the driving mechanism is installed on the machine frame and used for driving the two rotating rollers to rotate in the opposite directions. The roller press for the coating drying layer of the flexible lithium battery electrode plate can effectively guarantee the rolling quality of the electrode plate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing equipment, in particular to a flexible lithium battery electrode sheet coating drying layer roller press. Background Art

[0002] Rolling is an important step in the production process of battery pole pieces. Its main purpose is to compact the coating on the pole piece onto the substrate, which can reduce the thickness of the entire pole piece, which is beneficial to increase the total length of the pole piece per unit volume during the later pole piece winding process, thereby increasing the energy density of the battery. At present, the rolling of the pole piece is generally arranged after the coating process, and the rolling of the pole piece is completed by a roller press. The rolling principle of the roller press is to use a pair of rotating rollers to roll the pole piece passing through the gap between the two, so that the coating coated on the substrate can be compacted on the pole piece.

[0003] In order to adapt to pole pieces of different thicknesses, current roller presses all adopt a design that can adjust the gap between the two rollers. For example, the patent with publication number CN217369387U discloses a battery pole piece roller press wiping roller device. The two rollers in the device are both mounted on a support frame, and the support frame is mounted in a mounting groove of the mounting frame. However, due to the gap between the mounting groove and the support frame, the axes corresponding to the two rollers are not parallel during actual use, which leads to the spatial intersection of the two rollers. Ultimately, when the pole piece is rolled, the areas where the surfaces of the two rollers contact the two sides of the pole piece are not on the same plane, so there will be problems of uneven rolling and poor rolling quality. Utility Model Content

[0004] In order to overcome one of the deficiencies of the prior art, the purpose of the utility model is to provide a flexible lithium battery electrode sheet coating drying layer roller press, which can effectively ensure the rolling quality of the electrode sheet.

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] A flexible lithium battery electrode plate coating drying layer roller press comprises a frame, a pair of adjustment mechanisms, a pair of rollers and a driving mechanism, wherein mounting grooves are arranged on both sides of the frame; a pair of mounting seats are installed on each of the mounting grooves, and the two mounting seats are arranged up and down; the two mounting seats in the same mounting groove are provided with mutually matching wedge-shaped abutting surfaces on the sides close to each other; a pair of adjustment mechanisms are respectively installed on one side of the frame located in each of the mounting grooves, and the adjustment end of each of the adjustment mechanisms can abut against the lower mounting seat in the corresponding mounting groove; a pair of rollers are respectively rotatably installed on the corresponding mounting seats on each of the mounting grooves, and the two rollers are arranged in parallel; a driving mechanism is installed on the frame, and the driving mechanism is used to drive the two rollers to rotate towards each other.

[0007] Furthermore, the adjustment mechanism includes a screw stepper motor and a butt joint on one end of a screw mounted on the screw stepper motor, the screw stepper motor is mounted on the frame, the butt joint abuts against the lower mounting seat corresponding to the mounting groove, and the screw stepper motor can push the lower mounting seat corresponding to the mounting groove through the screw thereon.

[0008] Furthermore, the abutment head includes a connecting portion and a movable portion, the connecting portion and the movable portion are hinged, and the movable portion can be movably mounted in a slide groove on a corresponding mounting seat.

[0009] Furthermore, the cross section of the slide groove is in an inverted T shape.

[0010] Furthermore, mounting plates are provided on both sides of the mounting seat, and the mounting plates are fixed on the frame by screws passing through mounting holes.

[0011] Furthermore, the mounting holes are all long waist holes.

[0012] Furthermore, a lifting cylinder is provided on the bottom of the frame located at the mounting groove, and a lifting end of the lifting cylinder is connected to the mounting seat at the bottom.

[0013] Furthermore, two groups of cleaning mechanisms are arranged on the frame, and each group of cleaning mechanisms is used to clean the coating on the surface of the corresponding roller.

[0014] Furthermore, the driving mechanism includes a driving motor, a reducer and gears, the driving motor and the reducer are both installed on the frame, the output end of the driving motor is connected to the input end of the reducer, two gears are provided and are respectively installed on the same end of the two rollers, the two gears are meshed with each other, and the output end of the reducer is meshed with any one of the gears.

[0015] Furthermore, a protective cover is provided on the frame, the two gears are both located in the protective cover, and the output end of the reducer moves through the protective cover.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model is a flexible lithium battery electrode coating drying layer roller press designed with an adjustment mechanism on the basis of the existing roller press. The adjustment mechanism cooperates with the restrictions inside the mounting groove to effectively adjust the relative misalignment position of the two mounting seats inside the same mounting groove, and then the relative position of the same end of the two rollers can be adjusted, so that the relative position between the two rollers can be effectively adjusted, thereby ensuring that the two rollers can remain parallel, thereby ensuring the quality of rolling. In addition, the two mounting seats in the same mounting groove are provided with mutually matching wedge-shaped abutment surfaces. The use of the wedge-shaped abutment surfaces is conducive to the adjustment mechanism when pushing the lower mounting seat, and the upper mounting seat can automatically follow the movement of the lower mounting seat, so that the corresponding end of the roller on the upper mounting seat can be raised to adapt to the lower roller.

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of an embodiment of the utility model;

[0020] Figure 2 It is a top view of an embodiment of the utility model;

[0021] Figure 3 yes Figure 2 The cross-sectional view along the AA direction;

[0022] Figure 4 It is a schematic structural diagram of the cooperation between the adjusting mechanism and the mounting seat in the embodiment of the utility model.

[0023] Description of Figure Numbers:

[0024] The frame 10, the mounting groove 11, the mounting seat 12, the wedge-shaped abutment surface 13, the slide groove 14, the mounting plate 15, the lifting cylinder 16, the adjustment mechanism 20, the screw stepper motor 21, the abutment head 22, the connecting part 23, the movable part 24, the roller 30, the driving mechanism 40, the driving motor 41, the reducer 42, the gear 43, and the cleaning mechanism 50. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] Reference Figures 1 to 4 A flexible lithium battery electrode sheet coating drying layer roller press shown in the figure includes a frame 10, a pair of adjustment mechanisms 20, a pair of rollers 30 and a driving mechanism 40. The frame 10 is provided with mounting grooves 11 on both sides; a pair of mounting seats 12 are installed on each of the mounting grooves 11, and the two mounting seats 12 are arranged up and down; the two mounting seats 12 in the same mounting groove 11 are provided with mutually matching wedge-shaped abutting surfaces 13 on the sides close to each other; a pair of adjustment mechanisms 20 are respectively installed on one side of the frame 10 located at each of the mounting grooves 11, and the adjustment end of each of the adjustment mechanisms 20 can abut against the lower mounting seat 12 in the corresponding mounting groove 11; a pair of rollers 30 are respectively rotatably installed on the corresponding mounting seats 12 on each of the mounting grooves 11, and the two rollers 30 are arranged in parallel; the driving mechanism 40 is installed on the frame 10, and the driving mechanism 40 is used to drive the two rollers 30 to rotate towards each other.

[0027] The two ends of the two rollers 30 are respectively mounted on the mounting seat 12 through bearings, and in the actual installation process, the mounting seat 12 and the mounting groove 11 are installed in a clearance fit manner, which is conducive to the disassembly and assembly of the components in the later stage. It should be noted that in the above-mentioned embodiment, the adjustment mechanism 20 pushes the lower mounting seat 12 to cause it to slightly displace in the mounting groove 11, thereby adjusting its relative position relative to the mounting seat 12 on the other side, and then adjusting the spatial position of the two ends of the roller 30, and finally achieving the parallelism adjustment of the two rollers 30. In fact, since the two rollers 30 are not parallel, the axes of the two rollers 30 may be in the same plane in space, or they may be in different planes; if they are in the same plane, it is only necessary to adjust the height of the mounting seat 12 on one side to achieve the parallelism of the two rollers 30, or it is also possible to simultaneously adjust the height of the mounting seats 12 on both sides and the horizontal sliding distance in the mounting groove 11 to achieve the above purpose; if they are in different planes, it is necessary to adjust the spatial position of the above-mentioned mounting seats 12 in the horizontal and vertical directions, and even to adjust the spatial positions of multiple mounting seats 12, so that the two rollers 30 can be parallel.

[0028] The flexible lithium battery electrode coating drying layer roller press is designed with an adjustment mechanism 20 on the basis of the existing roller press. The adjustment mechanism 20 cooperates with the restrictions inside the mounting groove 11 to effectively adjust the relative misalignment position of the two mounting seats 12 inside the same mounting groove 11, and then the relative position of the same end of the two rollers 30 can be adjusted. In this way, the relative position between the two rollers 30 can be effectively adjusted, and then the two rollers 30 can be kept parallel, thereby ensuring the quality of rolling. In addition, the two mounting seats 12 in the same mounting groove 11 are provided with mutually matching wedge-shaped abutment surfaces 13. The wedge-shaped abutment surfaces 13 are used to facilitate the adjustment mechanism 20 to push the lower mounting seat 12, so that the upper mounting seat 12 can automatically follow the movement of the lower mounting seat 12, so that the corresponding end of the roller 30 on the upper mounting seat 12 can be raised to adapt to the lower roller 30.

[0029] See also Figures 1 to 3 In order to facilitate the micro-adjustment of the horizontal position of the mounting seat 12 in the mounting groove 11, in one embodiment of the present application, the adjustment mechanism 20 includes a screw stepper motor 21 and a butt joint 22 on one end of the screw on which the screw stepper motor 21 is installed. The screw stepper motor 21 is installed on the frame 10, and the butt joint 22 abuts against the lower mounting seat 12 corresponding to the mounting groove 11. The screw stepper motor 21 can push the lower mounting seat 12 corresponding to the mounting groove 11 through the screw on it. The use of the screw stepper motor 21 can save space to a certain extent. At the same time, the entire lower mounting seat 12 and the roller 30 thereon are relatively heavy. For this reason, the use of the screw stepper motor 21 for pushing can reduce the labor intensity of adjustment and achieve micro-adjustment. The butt joint 22 and the mounting seat 12 can be connected by abutment, but in order to facilitate the bidirectional adjustment in the later stage, a hinged connection can be adopted between the butt joint 22 and the mounting seat 12.

[0030] See also Figure 4 In one embodiment of the present application, in order to facilitate bidirectional adjustment, the abutment head 22 includes a connecting portion 23 and a movable portion 24, the connecting portion 23 and the movable portion 24 are hinged, and the movable portion 24 can be movably installed in the slide groove 14 on the corresponding mounting seat 12. The cross section of the slide groove 14 is an inverted T shape.

[0031] See also Figure 1In order to facilitate fixing the adjustment position of the roller 30 and reduce the working strength of the adjustment mechanism 20, in one embodiment of the present application, mounting plates 15 are provided on both sides of the mounting seat 12, and the mounting plates 15 are fixed to the frame 10 by screws passing through the mounting holes. Among them, the mounting holes are all long waist holes, which makes it easier to fix the mounting seat 12 on the side wall of the frame 10 in the later stage, and also facilitates the adjustment of the mounting plates 15 relative to the screws.

[0032] In some embodiments, in order to adapt to the rolling work of pole pieces of different heights and to facilitate the adjustment of the parallelism of the two rollers 30, the frame 10 is provided with a lifting cylinder 16 at the bottom of the mounting groove 11, and the lifting end of the lifting cylinder 16 is connected to the mounting seat 12 at the bottom. The lifting cylinder 16 can slide relative to the bottom of the mounting groove 11, and for this purpose, a sliding seat can be provided at the bottom of the lifting cylinder 16, and the sliding seat is frictionally connected to the bottom of the mounting groove 11, and has the energy of self-locking under gravity. Of course, in some improved embodiments, the lifting end of the lifting cylinder 16 is hinged to the bottom of the mounting seat 12, and the bottom of the lifting cylinder 16 can be fixedly connected to the bottom of the mounting groove 11. In fact, the horizontal displacement distance of the mounting seat 12 in the mounting groove 11 is relatively short, so the problem caused by the lateral deviation of the mounting seat 12 relative to the lifting cylinder 16 can be ignored.

[0033] See also Figure 3 In one embodiment of the present application, in order to keep the surfaces of the two rollers 30 clean, two groups of cleaning mechanisms 50 are provided on the frame 10, and each group of the cleaning mechanisms 50 is used to clean the paint on the surface of the corresponding roller 30. The cleaning mechanism 50 can adopt a corresponding structure in a battery pole sheet roller press device disclosed in patent CN217369387U, which the applicant will not describe in detail here.

[0034] See also Figure 2 In order to realize transmission, in one embodiment of the present application, the driving mechanism 40 includes a driving motor 41, a reducer 42 and a gear 43. The driving motor 41 and the reducer 42 are both mounted on the frame 10. The output end of the driving motor 41 is connected to the input end of the reducer 42. Two gears 43 are provided and are respectively mounted on the same end of the two rollers 30. The two gears 43 are meshed with each other, and the output end of the reducer 42 is meshed with any of the gears 43. In order to better realize protection and prevent people from being drawn between the two gears 43, a protective cover is provided on the frame 10. The two gears 43 are both located in the protective cover, and the output end of the reducer 42 moves through the protective cover.

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A flexible lithium battery electrode sheet coating drying layer roller press, characterized in that: include The frame has mounting grooves on both sides; a pair of mounting seats are installed on each mounting groove, and the two mounting seats are arranged up and down; the two mounting seats in the same mounting groove are provided with mutually matching wedge-shaped abutting surfaces on the sides close to each other; A pair of adjustment mechanisms, which are respectively mounted on one side of the frame located at each of the mounting slots, and an adjustment end of each of the adjustment mechanisms can abut against a mounting seat at the lower portion of the corresponding mounting slot; A pair of rotating rollers, which are rotatably mounted on the corresponding mounting seats on each of the mounting grooves, and the two rotating rollers are arranged in parallel; A driving mechanism is installed on the frame, and the driving mechanism is used to drive the two rollers to rotate towards each other.

2. A flexible lithium battery electrode sheet coating drying layer roller press according to claim 1, characterized in that: The adjustment mechanism includes a screw stepper motor and a butt joint on one end of a screw on the screw stepper motor, the screw stepper motor is installed on the frame, the butt joint abuts against the lower mounting seat corresponding to the mounting groove, and the screw stepper motor can push the lower mounting seat corresponding to the mounting groove through the screw thereon.

3. A flexible lithium battery electrode sheet coating drying layer roller press according to claim 2, characterized in that: The abutment head comprises a connecting portion and a movable portion, wherein the connecting portion and the movable portion are hinged, and the movable portion can be movably mounted in a slide groove on a corresponding mounting seat.

4. A flexible lithium battery electrode sheet coating drying layer roller press according to claim 3, characterized in that: The cross section of the slide groove is in an inverted T shape.

5. The flexible lithium battery electrode sheet coating drying layer roller press according to claim 1, characterized in that: Mounting plates are arranged on both sides of the mounting seat, and the mounting plates are fixed on the frame by screws passing through mounting holes.

6. A flexible lithium battery electrode sheet coating drying layer roller press according to claim 5, characterized in that: The mounting holes are all long waist holes.

7. A flexible lithium battery electrode sheet coating drying layer roller press according to any one of claims 1 to 6, characterized in that: The frame is provided with a lifting cylinder at the bottom of the mounting groove, and the lifting end of the lifting cylinder is connected to the mounting seat at the bottom.

8. A flexible lithium battery electrode sheet coating drying layer roller press according to any one of claims 1 to 6, characterized in that: Two groups of cleaning mechanisms are arranged on the frame, and each group of the cleaning mechanisms is used for cleaning the coating on the surface of the corresponding rotating roller.

9. A flexible lithium battery electrode sheet coating drying layer roller press according to any one of claims 1 to 6, characterized in that: The driving mechanism includes a driving motor, a reducer and gears. The driving motor and the reducer are both installed on the frame. The output end of the driving motor is connected to the input end of the reducer. Two gears are provided and are respectively installed on the same end of the two rollers. The two gears are meshed with each other, and the output end of the reducer is meshed with any one of the gears.

10. A flexible lithium battery electrode sheet coating drying layer roller press according to claim 9, characterized in that: A protective cover is arranged on the frame, and the two gears are both located in the protective cover, and the output end of the reducer moves through the protective cover.

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