Convex flattening roller for lithium battery coating machine

Abstract

The invention relates to the technical field of new energy batteries, and discloses a convex flattening roller for a lithium battery coating machine, the convex flattening roller comprises a main roller body, a plurality of extrusion strips are arranged on the peripheral side of the main roller body, and the two ends of the main roller body are inserted into a shell; a circle of annular groove is formed in the inner side of the shell, a plurality of check blocks are matched with the annular groove through sliding blocks, first locking pieces are arranged between the check blocks and the shell, and the check blocks are used for abutting against the extrusion strips and achieving relative fixation of the shell and the main roller body through the first locking pieces; the outer side of the shell is matched with a lantern ring through a rotating shaft; the outer side of the lantern ring is connected with a brush roller through a supporting frame, and the relative position of the supporting frame and the lantern ring is adjustable so that the brush roller can clean the main roller body. The shell and the main roller body are relatively fixed through the locking piece, shaking of the main roller body and the shell can be prevented, and damage caused by friction between the two ends of the extrusion strip and the shell part can be effectively prevented. And by arranging the brush roller, gaps between the extrusion strips can be cleaned along with rotation of the main roller body, so that the situation that some residual dirt cannot be cleaned in the long-term extrusion process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of new energy batteries, in particular to a convex flattening roller for a lithium battery coating machine.

[0002] Background technology battery

[0003] Lithium battery pole pieces are the core components of lithium batteries. Graphite powder and other powders can be coated on the pole pieces through a coating machine, so coating is a necessary step in pole piece production. When coating the pole pieces, it is necessary to cooperate with the flat roller structure to flatten the pole pieces to ensure that the surface of the pole pieces is smooth and flat; in the prior art, compared with ordinary flat rollers, the convex flattening roller is equipped with multiple groups of convex extrusion strips arranged at equal intervals on its surface, which press the pole pieces through the extrusion strips. When the conveyor belt guides the lithium battery pole pieces and other materials to move horizontally with the surface belt body, it is pressed, which can extend the length of the metal material and force the shell and other objects to be shaped.

[0004] The inventors have found that most of the current convex flattening rollers are mounted on a base plate with a conveyor belt, and their installation positions are adjusted according to the height and size of objects such as lithium batteries. However, the main roller body and the support components on both sides lack reinforcement components, and the convex strips and other objects on the surface are easily damaged by friction with the side accessories. The convex strips need to be replaced frequently, which reduces the service life of the convex strips. In addition, during the operation of the convex flattening roller, since the convex flattening roller is in contact with the pole piece, graphite powder and other powders on the pole piece are easily attached to the convex flattening roller. If such attached powder is not cleaned in time, it will affect the subsequent pressing work, and thus affect the quality of the pole piece. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a convex flattening roller for a lithium battery coating machine, which can achieve relative fixation of the outer shell and the main roller body through a locking piece, thereby preventing the main roller body and the outer shell from shaking, and effectively preventing the two ends of the extrusion strip from being damaged by friction with the outer shell part; by arranging a liftable brush roller above the main roller body, the gaps between the extrusion strips can be cleaned as the main roller body rotates, preventing dirt from remaining, so as to avoid some dirt remaining in the long-term extrusion process that cannot be removed, thereby ensuring the subsequent pole piece pressing quality.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A convex flattening roller for a lithium battery coating machine comprises a main roller body, a plurality of extrusion strips are arranged on the circumference of the main roller body, and both ends of the main roller body are plugged into an outer shell; a circle of annular grooves are arranged on the inner side of the outer shell, a plurality of blocks cooperate with the annular grooves through sliders, and a first locking piece is arranged between the block and the outer shell, the block is used to abut the extrusion strips and realize relative fixation of the outer shell and the main roller body through the first locking piece; the outer side of the outer shell cooperates with the sleeve ring through a rotating shaft; the outer side of the sleeve ring is connected to a brush roller through a support frame, and the relative position of the support frame and the sleeve ring is adjustable to realize the brush roller cleaning the main roller body.

[0008] As a further implementation, the extrusion strip protrudes from the surface of the main roller body, and the stopper is used to abut against positions on both sides of the end of the extrusion strip.

[0009] As a further implementation, the radius of the annular groove is greater than the radius of the main roller body, a first locking hole is provided on the inner side surface of the shell outside the annular groove, and the first locking piece passes through the stopper and cooperates with the first locking hole.

[0010] As a further implementation, the cross section of the shell is circular, and the end of the main roller body is plug-fitted with the inner center of the shell through an insertion rod.

[0011] As a further implementation, the collar includes an outer collar and an inner collar, and the outer collar and the inner collar are rotationally engaged via balls; the shaft passes through the inner collar and is fixedly connected to the outer side of the housing.

[0012] As a further implementation, the bottom of the outer collar is fixed by a column, and the bottom of the column is fixedly connected to the installation point by a fixing piece.

[0013] As a further implementation method, a group of hollow sleeves are arranged on the outside of the outer collar, and the hollow sleeves are slidably matched with the support frame. A second locking piece is provided on the hollow sleeve, and the support frame and the outer collar are locked by the second locking piece after adjusting their relative positions.

[0014] As a further implementation method, the support frames are connected via a transverse axis, the transverse axis is located above the main roller body, and the brush roller is installed on the transverse axis.

[0015] As a further implementation, a fixing hole is provided on a side of the outer ring away from the main roller body.

[0016] As a further implementation method, a locking plate is provided at one end of the rotating shaft away from the ring, the outer diameter of the locking plate is larger than the outer diameter of the rotating shaft, a hole is provided on the locking plate outside the rotating shaft, a third locking piece is provided at the hole, and the third locking piece is used to cooperate with the fixing hole.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The shell of the present invention fixes the position of the extrusion strip on the main roller body through an annular groove, a stopper, and a slider structure, and fixes the shell and the main roller body relatively through a locking piece, which can prevent the main roller body and the shell from shaking, and make the main roller body and the shell rotate smoothly between the rings, which can effectively prevent the two ends of the extrusion strip from being damaged by friction with the shell part, thereby ensuring the service life of the extrusion strip; by arranging a liftable brush roller above the main roller body, the gaps between the extrusion strips can be cleaned as the main roller body rotates, preventing dirt from remaining, so as to avoid some dirt remaining in the long-term extrusion process that cannot be removed, thereby ensuring the subsequent pole piece pressing quality.

[0019] 2. The rotating shaft and the outer ring of the present invention cooperate with each other through the third locking piece, so that the relative position of the rotating shaft and the outer ring can be fixed, which can effectively prevent the main roller body from idling; after unlocking the first locking piece, the column, the outer ring and the outer shell on one side can be removed, even if the main roller body is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] Figure 1 1 is a schematic diagram of the overall structure of a convex flattening roller for a lithium battery coating machine according to an embodiment of the present invention;

[0022] Figure 2 is a schematic cross-sectional view of a convex flattening roller for a lithium battery coating machine according to an embodiment of the present invention;

[0023] Figure 3 1 is a schematic diagram of the partial structure of a convex flattening roller for a lithium battery coating machine according to an embodiment of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the collar portion of the convex flattening roller in an embodiment of the present invention.

[0025] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0026] Among them: 1. outer shell; 2. bottom pad; 3. screw; 4. column; 5. outer ring; 6. rotating shaft; 7. third locking piece; 8. support frame; 9. horizontal shaft; 10. brush roller; 11. main roller body; 12. extrusion strip; 13. hollow sleeve; 14. second locking piece; 15. shielding piece; 16. block; 17. first locking piece; 18. annular groove; 19. slider; 20. plug rod; 21. hole; 22. fixing hole; 23. ball; 24. inner ring. DETAILED DESCRIPTION

[0027] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] Embodiment 1

[0029] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 4 As shown, a convex flattening roller for a lithium battery coating machine includes a main roller body 11, a plurality of extrusion strips 12 are arranged on the circumference of the main roller body 11, and both ends of the main roller body 11 are inserted into the outer shell 1; a circle of annular grooves 18 are arranged on the inner side of the outer shell 1, and a plurality of blocks 16 cooperate with the annular grooves 18 through sliders 19, and a first locking piece 17 is arranged between the block 16 and the outer shell 1, and the block 16 is used to abut the extrusion strips 12 and realize the relative fixation of the outer shell 1 and the main roller body 11 through the first locking piece 17; the outer side of the outer shell 1 cooperates with the sleeve ring through the rotating shaft 6; the outer side of the sleeve ring is connected to the brush roller 10 through the support frame 8, and the relative position of the support frame 8 and the sleeve ring is adjustable to realize the brush roller 10 cleaning the main roller body 11.

[0030] like Figure 1 , Figure 2 As shown, the extrusion strip 12 protrudes from the surface of the main roller body 11 to form a convex flattening roller, wherein the two ends of the main roller body 11 are plugged into the inner center of the shell through the plug rod 20, and the plug rod 20 is a rotating shaft structure. The main roller body 11 can be installed in the inner center of the shell through the plug rods 20 at both ends, as shown in FIG. Figure 2 .

[0031] like Figure 2 As shown, the outer shell 1 is a circular outer shell, and a shielding piece 15 is provided at its inner edge for shielding dust. An annular groove 18 is provided on the inner side surface of the outer shell outside the main roller body 11, so the radius of the annular groove is larger than the radius of the main roller body, and a plurality of first locking holes are provided on the inner side surface of the outer shell between the annular groove 18 and the shielding piece 15.

[0032] Stoppers 16 are provided at the front and rear sides of the end of the extrusion strip 12 in the rotation direction, wherein the stoppers are arranged along the radius direction of the shell, one side of the bottom end of the stoppers slides with the annular groove 18 through a slider 19, and a first locking piece 17 is disposed at the top end of the stoppers.

[0033] The first locking piece 17 vertically passes through the top of the stopper 16 and cooperates with the first locking hole. The first locking piece 17 can be a locking screw. The first locking piece 17 cooperates with the first locking hole and cooperates with the slider 19 to limit the position of the stopper 16.

[0034] like Figure 2As shown, the stopper 16 is used to abut against the positions on both sides of the end of the extrusion strip. In this embodiment, six groups of extrusion strips 12 are evenly distributed on the main roller body 11, and the ends of each group of extrusion strips 12 are respectively matched with a group of stoppers 16 on both sides. Therefore, 12 groups of stoppers are slidably provided on the inner annular groove 18 of each shell 1, and the number of the first locking piece 17 and the first locking hole is the same as the number of the stoppers 16, and the position of the first locking hole is determined according to the position of the extrusion strip 12.

[0035] After the main roller body 11 is installed, the stoppers 16 are slidably fitted on the surface of the extrusion strip in pairs through the first locking member 17 and the first locking hole, thereby preventing the main roller body 11 and the shell 1 from shaking and allowing the main roller body 11 and the shell 1 to rotate smoothly between the collars. This effectively prevents the two ends of the extrusion strip 12 from being damaged by friction with the shell part, thereby ensuring the service life of the extrusion strip.

[0036] like Figure 1 , Figure 3 and Figure 4 As shown, the outer sides of the two outer shells 1 cooperate with the rings through a rotating shaft; the rings include an outer ring 5 and an inner ring 24, and the outer ring 5 and the inner ring 24 are rotatably cooperated through the ball 23; the relationship between the outer ring 5, the inner ring 24 and the ball 23 forms a bearing structure, and the rotating shaft passes through the inner ring 24 and is fixedly connected to the center of the outer side surface of the outer shell 1.

[0037] like Figure 3 As shown, the bottom of the outer sleeve ring 5 is fixed by the column 4, and the bottom of the column 4 is fixedly connected to the installation point by a fixing piece. Specifically, a support plate is provided at the bottom of the column 4, and the support plate is installed at the corresponding installation point by means of screws 3 and bottom pads 2, so as to fix the position of the outer sleeve ring 5. The main roller body 11 is stably supported to rotate by two sets of sleeve rings. The installation point can be a designated point on the coating machine, so that the pole piece drives the main roller body 11 to rotate, and the pole piece is flattened by the extrusion strip 12. It can be understood that the sleeve ring can adopt a bearing structure, and the bearing is supported by a bearing seat, and the bottom of the bearing seat is fixed by the column 4.

[0038] like Figure 3 As shown, a group of hollow sleeves 13 are arranged relatively on the outer side of the outer ring 5, and a hollow sleeve 13 is arranged correspondingly on the front and rear sides of each outer ring 5. The two hollow sleeves 13 are slidably matched with the support frame 8. The support frame 8 is an inverted U-shaped structure and is inserted into the hollow sleeve 13. A second locking piece 14 is provided on the hollow sleeve, and the second locking piece 14 can be a locking screw. By rotating the second locking piece 14, the front end of the second locking piece 14 can be pressed against the support frame 8, so that the relative position of the hollow sleeve 13 and the support frame 8 is fixed.

[0039] The middle position of the top of the two sets of support frames 8 is rotatably matched with the end of the horizontal shaft 9 through a bearing. A brush roller 10 is provided on the horizontal shaft 9 so that the brush roller 10 is located directly above the main roller body 11. After the second locking member 14 is rotated, the support frame 8 can be pulled vertically. Brush hairs are provided on the brush roller 10. The height of the support frame 8 is adjusted to change the distance between the brush roller 10 and the main roller body 11, so as to clean the main roller body 11 and the extrusion strip 12. When cleaning is not required, the height of the brush roller 10 can be adjusted to make the brush roller 10 not contact the main roller body 11.

[0040] The brush roller 10 provided in this embodiment can realize regular cleaning of the surface of the main roller body 11 and the extrusion strips 12, and clean the graphite powder and other powders on the surface of the main roller body 11. As the main roller body 11 rotates, the gaps between the extrusion strips 12 can be cleaned to prevent dirt from remaining, so as to avoid some dirt remaining in the long-term extrusion process that cannot be removed, thereby ensuring the subsequent pole piece pressing quality.

[0041] In other examples, the transverse shaft 9 is fixedly connected to the support frame 8 , and the brush roller 10 is sleeved with the transverse shaft 9 .

[0042] like Figure 4 As shown, a fixing hole 22 is provided on the side of the outer ring 5 away from the main roller body, and a locking plate is provided on the end of the rotating shaft away from the ring, wherein the outer diameter of the locking plate is larger than the outer diameter of the rotating shaft, and a hole 21 is provided on the locking plate outside the rotating shaft, and a third locking member 7 is provided at the hole, and the third locking member can be a screw or a pin, and the hole 21 can be a through hole or a threaded hole. The third locking member 7 passes through the hole and cooperates with the fixing hole 22. Since the outer ring 5 is fixed, under the action of the third locking member 7, the rotating shaft 6 and the outer ring 5 can be relatively fixed, thereby fixing the main roller body 11, which can effectively prevent the main roller body 11 from idling.

[0043] It can be understood that the main roller body 11 of this embodiment can rotate under the drive of the pole piece, and the outer side of the rotating shaft 6 can also be connected to a driving mechanism such as a motor, and the motor can be used to drive the main roller body 11 to actively rotate through the rotating shaft 6, but it is necessary to ensure that the rotation speed of the main roller body 11 is compatible with the movement speed of the pole piece.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A convex flattening roller for a lithium battery coating machine, characterized in that: It includes a main roller body, which is provided with a plurality of extrusion strips on its circumference, and the two ends of the main roller body are inserted into the outer shell; a circle of annular grooves is provided on the inner side of the outer shell, and a plurality of blocks cooperate with the annular grooves through sliders, and a first locking piece is provided between the block and the outer shell, and the block is used to abut the extrusion strips and realize the relative fixation of the outer shell and the main roller body through the first locking piece; the outer side of the outer shell cooperates with the sleeve ring through a rotating shaft; the outer side of the sleeve ring is connected to the brush roller through a supporting frame, and the relative position of the supporting frame and the sleeve ring is adjustable to realize the brush roller cleaning the main roller body.

2. A convex flattening roller for a lithium battery coating machine according to claim 1, characterized in that: The extrusion strip protrudes from the surface of the main roller body, and the stopper is used to abut against positions on both sides of the end of the extrusion strip.

3. A convex flattening roller for a lithium battery coating machine according to claim 2, characterized in that: The radius of the annular groove is greater than the radius of the main roller body. A first locking hole is provided on the inner side surface of the shell outside the annular groove. The first locking piece passes through the stopper and cooperates with the first locking hole.

4. The convex flattening roller for a lithium battery coating machine according to claim 1, characterized in that: The cross section of the shell is circular, and the end of the main roller body is plugged into and matched with the inner center of the shell through an insertion rod.

5. The convex flattening roller for a lithium battery coating machine according to claim 1, characterized in that: The sleeve ring comprises an outer sleeve ring and an inner sleeve ring, and the outer sleeve ring and the inner sleeve ring are rotationally matched via balls; the rotating shaft passes through the inner sleeve ring and is fixedly connected to the outer side surface of the shell.

6. A convex flattening roller for a lithium battery coating machine according to claim 5, characterized in that: The bottom of the outer collar is fixed by a column, and the bottom of the column is fixedly connected to the installation point by a fixing piece.

7. A convex flattening roller for a lithium battery coating machine according to claim 5 or 6, characterized in that: A group of hollow sleeves are arranged on the outer side of the outer collar, and the hollow sleeves are slidably matched with the support frame. A second locking piece is arranged on the hollow sleeve, and the support frame and the outer collar are locked by the second locking piece after adjusting the relative position.

8. The convex flattening roller for a lithium battery coating machine according to claim 7, characterized in that: The support frames are connected via a transverse axis, the transverse axis is located above the main roller body, and the brush roller is installed on the transverse axis.

9. The convex flattening roller for a lithium battery coating machine according to claim 5, characterized in that: The outer ring is provided with a fixing hole on a side away from the main roller body.

10. A convex flattening roller for a lithium battery coating machine according to claim 9, characterized in that: A locking plate is provided at one end of the rotating shaft away from the collar, the outer diameter of the locking plate is larger than the outer diameter of the rotating shaft, a hole is provided on the locking plate outside the rotating shaft, a third locking piece is provided at the hole, and the third locking piece is used to cooperate with the fixing hole.

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