CN209312899U - A pole piece rolling device and system - Google Patents

Abstract

The utility model provides a kind of pole piece rolling device and system, is related to pole piece roll-in field.Pole piece rolling device includes shell, fixing roller, particle roller and supporting piece, shell offers accommodating cavity, accommodating cavity is for accommodating fixing roller, particle roller and supporting piece, the inner wall of fixing roller and particle roller with accommodating cavity is rotatably coupled, and particle roller can fix roller movement relatively, supporting piece can the movement of relative particle roller, supporting piece is for supporting particle roller, pole piece to adjust the distance between particle roller and fixing roller, for roll-in different-thickness.The pole piece rolling device can be such that pole piece thickness is consistent, and avoid scrapping for pole piece, and improve the absorption to electrolyte.

Description

A pole piece rolling device and system

technical field

The utility model relates to the field of pole piece rolling, in particular to a pole piece rolling device and system.

Background technique

The purpose of rolling the pole piece is to maintain the uniformity of the thickness of the pole piece, so that the pole piece can be formed after passing through the winding machine.

At present, the common rolling device on the market cannot control the thickness of the pole piece well, resulting in the scrapping of the pole piece and increasing the production cost, and the flattened pole piece is not conducive to the absorption of the electrolyte.

Utility model content

One of the objectives of the present utility model is to provide a pole piece rolling device, which can keep the thickness of the pole piece consistent, avoid the scrapping of the pole piece, and improve the absorption of the electrolyte.

Another object of the present invention is to provide a pole piece rolling system, which can keep the thickness of the pole piece consistent, avoid the scrapping of the pole piece, and improve the absorption of the electrolyte.

In order to achieve the above object, the utility model provides a technical solution:

The embodiment of the utility model provides a pole piece rolling device, which includes a housing, a fixed roller, a particle roller and a supporting member. The housing is provided with an accommodation cavity, and the accommodation cavity is used to accommodate the The fixed roller, the particle roller and the resisting member, the fixed roller and the particle roller are both rotatably connected to the inner wall of the accommodating cavity, and the particle roller can be opposite to the fixed roller movement, the abutting member can move relative to the granule roller, the abutting member is used to abut the granule roller, to adjust the distance between the granule roller and the fixed roller, for different rolling pressure Thick pole piece.

Further, the particle roller includes a first rotating shaft and a first pressure roller body, the first rotating shaft is rotatably connected to the inner wall of the accommodating cavity, and the first rotating shaft can be relatively The fixed roller moves, the first pressing roller body is arranged on the first rotating shaft, and the first rotating shaft can drive the first pressing roller body to rotate.

Further, the first pressure roller body is provided with a plurality of protrusions, and the plurality of protrusions are ring-provided on the first pressure roller body.

Further, the abutting member is provided with a first abutting surface and a second abutting surface, the first abutting surface is connected to the second abutting surface, and the first abutting surface and the abutting surface The second abutment surface is capable of abutting against the pellet roll.

Further, the pole piece rolling device further includes a pushing mechanism, the pushing mechanism resists the abutting member and can move relative to the fixed roller, and is used to push the abutting member to adjust the The distance between the pellet roll and the fixed roll.

Further, the pushing mechanism includes a cylinder and a piston rod, the housing is provided with a first through hole, the first through hole communicates with the accommodating cavity, and one end of the piston rod extends into the cylinder and is movably connected with the cylinder, and the other end of the piston rod can extend into the first through hole and be resisted by the resisting member.

Further, the push mechanism further includes a limiter, the limiter is connected to the housing, and the limiter is provided with a second through hole, and the second through hole is connected to the first through hole. Correspondingly, the piston rod can pass through the second through hole and extend into the first through hole, and the second through hole is used to limit the radial movement of the piston rod.

Further, the fixed roller includes a second rotating shaft and a second pressing roller body, the second rotating shaft is rotatably connected to the inner wall of the accommodating cavity, and the second pressing roller body is arranged on the On the second rotating shaft, the second rotating shaft can drive the second pressing roller body to rotate.

Further, a feed port is provided on the housing, and the feed port communicates with the accommodating cavity.

The embodiment of the utility model also provides a pole piece rolling system, including a feeding device and a pole piece rolling device. The pole piece rolling device includes a housing, a fixed roller, a particle roller and a supporting member, and the housing is provided with an accommodating cavity, and the accommodating cavity is used to accommodate the fixed roller, the particle roller and the resisting member, the fixed roller and the particle roller are both rotatably connected to the inner wall of the accommodating cavity, and the particle roller can move relative to the fixed roller, and the resisting member can Moving relative to the particle roller, the resisting member is used to resist the particle roller to adjust the distance between the particle roller and the fixed roller, and is used for rolling pole pieces of different thicknesses.

Compared with the prior art, the beneficial effects of the pole piece rolling device and system provided by the utility model are:

The pole piece rolling device and system provided by the utility model place the pole piece between the particle roller and the fixed roller, hold the pole piece on the fixed roller through the particle roller, so that the thickness of the pole piece remains consistent, and The particle roller and the fixed roller are rotated and sent out of the device. Moreover, the pole piece can form multiple grooves on the surface through the pressing of the particle roller and the fixed roller, which is beneficial to the absorption of the electrolyte solution after the subsequent battery injection. The pole piece rolling device and system can keep the thickness of the pole piece consistent, avoid the scrapping of the pole piece, and improve the absorption of electrolyte.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is a structural schematic view of the first viewing angle of the pole piece rolling device provided by the embodiment of the present invention;

Fig. 2 is a schematic structural view of the pole piece rolling device provided by the embodiment of the present invention under the second viewing angle;

Fig. 3 is a schematic structural view of the particle roller of the pole piece rolling device provided by the embodiment of the present invention;

Fig. 4 is a structural schematic diagram of the pushing mechanism of the pole piece rolling device provided by the embodiment of the present invention;

Fig. 5 is a structural schematic diagram of the supporting member of the pole piece rolling device provided by the embodiment of the present utility model.

Icons: 1-pole piece rolling device; 11-shell; 111-accommodating cavity; 112-first through hole; 113-feeding port; 12-fixed roller; 121-second rotating shaft; 122-the first 13-particle roller; 131-the first rotating shaft; 132-the first pressure roller body; 133-protrusion; 14-resistance piece; 141-the first abutment surface; 15-propelling mechanism; 151-cylinder; 152-piston rod; 153-limiting piece; 1531-the second through hole.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "inner", "outer" etc. is based on the orientation or position shown in the drawings relationship, or the orientation or positional relationship that is usually placed when the product of the utility model is used, or the orientation or positional relationship that is commonly understood by those skilled in the art, it is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "opening", "installation", "connection" and "connection" should be understood in a broad sense, for example, It can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Example

Please refer to FIG. 1 . FIG. 1 is a structural schematic diagram of a pole piece rolling device 1 provided by an embodiment of the present invention at a first viewing angle. The pole piece rolling device 1 is mainly used for flattening the pole piece, and is a device capable of obtaining pole pieces with uniform thickness. The pole piece rolling device 1 can keep the thickness of the pole piece consistent, avoid the scrapping of the pole piece, and improve the absorption of the electrolyte.

FIG. 2 is a schematic structural diagram of the pole piece rolling device 1 provided by the embodiment of the present invention under a second viewing angle. Please refer to FIG. 1 and FIG. 2 in conjunction.

The pole piece rolling device 1 includes a housing 11, a fixed roller 12, a particle roller 13, and a supporting member 14. The housing 11 is provided with an accommodating cavity 111, and the accommodating cavity 111 is used to accommodate the fixed roller 12 and the particle roller 13. And the supporting member 14, the fixed roller 12 and the particle roller 13 are rotatably connected with the inner wall of the accommodating cavity 111, and the particle roller 13 can move relative to the fixed roller 12, and the supporting member 14 can move relative to the particle roller 13. The holder 14 is used to support the particle roller 13 to adjust the distance between the particle roller 13 and the fixed roller 12 for rolling pole pieces of different thicknesses.

It should be noted that the housing 11 is roughly in the shape of a cuboid, and is not limited to the shape of a cuboid, and can also be in any shape such as a cylinder or a cube, as long as an accommodating cavity 111 can be opened inside to accommodate the fixed roller 12 and the particle roller. 13 and abutment piece 14 get final product.

It should be noted that, the shell 11 is provided with a feed port 113 , and the feed port 113 communicates with the accommodating cavity 111 . The pole piece enters the interior of the accommodation cavity 111 from the feed port 113 .

It should be noted that, the casing 11 is also provided with a first through hole 112 , and the first through hole 112 communicates with the accommodating cavity 111 . The first through hole 112 may be circular or square, which is not specifically limited here. The first through hole 112 is used for the pushing mechanism 15 to protrude therein so as to push the resisting member 14 to move.

It should be noted that the deformation of the pole piece after being rolled is in the range of 10-30 μm.

FIG. 3 is a schematic structural view of the particle roller 13 of the pole piece rolling device 1 provided by the embodiment of the present invention. Please refer to FIG. 1 and FIG. 3 in conjunction.

The particle roller 13 includes a first rotating shaft 131 and a first pressure roller body 132, the first rotating shaft 131 is rotatably connected to the inner wall of the accommodating cavity 111, and the first rotating shaft 131 can move relative to the fixed roller 12, the first The pressing roller body 132 is disposed on the first rotating shaft 131 , and the first rotating shaft 131 can drive the first pressing roller body 132 to rotate.

It should be noted that the first pressing roller body 132 is made of a rubber material, and is not limited thereto, and may also be a deformable foam or plastic material.

It should be noted that, the inner wall of the accommodating cavity 111 is provided with a sliding groove (not shown in the figure), so that the first rotating shaft 131 can slide within the limit range of the sliding groove, and under the abutting effect of the abutting member 14, the Adjust the distance between the first pressing roller body 132 and the fixed roller 12 .

It should be noted that the abutment member 14 abuts against the first pressure roller body 132 so that the first pressure roller body 132 can approach the fixed roller 12 to adjust the distance between the first pressure roller body 132 and the fixed roller 12 , to adapt to rolling pole pieces of different thickness.

A plurality of protrusions 133 are disposed on the first pressing roller body 132 , and the plurality of protrusions 133 are arranged around the first pressing roller body 132 .

It should be noted that the protrusion 133 is approximately cylindrical, and this shape is beneficial for forming grooves on the pole piece, so as not to cause damage due to cracks, resulting in waste of pole piece material.

It should be noted that the plurality of protrusions 133 can make the pole piece produce multiple grooves when rolling the pole piece, so as to form a concave-convex structure on the surface of the pole piece, so that after the battery is filled with liquid, it is beneficial to the electrolyte solution absorb.

FIG. 4 is a schematic structural view of the pushing mechanism 15 of the pole piece rolling device 1 provided by the embodiment of the present invention. Please refer to FIG. 1 and FIG. 4 in conjunction.

The pole piece rolling device 1 also includes a pushing mechanism 15, the pushing mechanism 15 is opposed to the supporting member 14, and can move relative to the fixed roller 12, and is used to push the supporting member 14 to adjust the gap between the particle roller 13 and the fixed roller 12. the distance.

It should be noted that the pushing mechanism 15 can also be connected with the resisting member 14 , and the pushing mechanism 15 moves relative to the housing 11 to make the resisting member 14 resist against the particle roller 13 .

Further, the pushing mechanism 15 includes a cylinder 151 and a piston rod 152. One end of the piston rod 152 extends into the cylinder 151 and is movably connected with the cylinder 151. The other end of the piston rod 152 can extend into the first through hole 112, and It can resist against the supporting member 14 .

It should be noted that, in this embodiment, the pressure of the cylinder 151 is 0-0.6 MPa. It can be understood that, in other embodiments, since the cylinder 151 is of a different type, the corresponding pressure range is adjusted accordingly.

Further, the pushing mechanism 15 also includes a limiter 153, which is connected to the housing 11, and the limiter 153 is provided with a second through hole 1531, which corresponds to the first through hole 112, and the piston rod 152 can pass through the second through hole 1531 and extend into the first through hole 112 , and the second through hole 1531 is used to limit the radial movement of the piston rod 152 .

It should be noted that the diameter of the second through hole 1531 matches the diameter of the piston rod 152 .

FIG. 5 is a schematic structural diagram of the supporting member 14 of the pole piece rolling device 1 provided by the embodiment of the present invention. Please refer to FIG. 1 and FIG. 5 in conjunction.

The abutting member 14 is provided with a first abutting surface 141 and a second abutting surface 142, the first abutting surface 141 is connected to the second abutting surface 142, and the first abutting surface 141 and the second abutting surface 142 can Against the particle roller 13.

Specifically, the first abutting surface 141 and the second abutting surface 142 can abut against the first pressing roller body 132 .

It should be noted that the abutment member 14 is approximately L-shaped, and is not limited to an L-shape, and may also be a polyhedron, using multiple surfaces to abut against the particle roller 13 .

Please continue to refer to FIG. 1, the fixed roller 12 includes a second rotating shaft 121 and a second pressure roller body 122, the second rotating shaft 121 is rotatably connected to the inner wall of the accommodating cavity 111, and the second pressure roller body 122 is arranged on the second On the second rotating shaft 121 , the second rotating shaft 121 can drive the second pressing roller body 122 to rotate.

It should be noted that the second pressing roller body 122 is a smooth cylindrical structure.

The embodiment of the utility model also provides a pole piece rolling system, including a feeding device and the above-mentioned pole piece rolling device 1 . The pole piece rolling device 1 includes a housing 11, a fixed roller 12, a particle roller 13, and a supporting member 14. The housing 11 is provided with an accommodating cavity 111, and the accommodating cavity 111 is used to accommodate the fixed roller 12 and the particle roller 13. And the supporting member 14, the fixed roller 12 and the particle roller 13 are rotatably connected with the inner wall of the accommodating cavity 111, and the particle roller 13 can move relative to the fixed roller 12, and the supporting member 14 can move relative to the particle roller 13. The holder 14 is used to support the particle roller 13 to adjust the distance between the particle roller 13 and the fixed roller 12 for rolling pole pieces of different thicknesses.

It should be noted that the feeding device is used to feed the pole piece into the pole piece rolling device 1 from the feed port 113 so as to perform the rolling process.

The following describes the assembly process of the pole piece rolling device 1 provided in this embodiment:

The fixed roller 12 and the particle roller 13 are rotatably connected to the inner wall of the accommodating cavity 111, one end of the piston rod 152 is movably connected to the cylinder 151, and the other end of the piston rod 152 passes through the second end of the stopper 153. The through hole 1531 extends into the first through hole 112 .

The working principle of the pole piece rolling device 1 provided by the present embodiment is introduced as follows:

The pole piece is inserted between the fixed roller 12 and the particle roller 13, and the piston rod 152, under the push of the cylinder 151, extends into the accommodation cavity 111 from the first through hole 112 to push the supporting member 14 and the particle roller 13 resists and approaches the fixed roller 12. For pole pieces of different thicknesses, the pressure of the cylinder 151 needs to be used to adjust the force against the particle roller 13 to adjust the distance between the particle roller 13 and the fixed roller 12.

In summary, the pole piece rolling device 1 and system provided by the utility model place the pole piece between the particle roller 13 and the fixed roller 12, and hold the pole piece on the fixed roller 12 through the particle roller 13 , to keep the thickness of the pole piece consistent, and conveyed out of the device under the rotation of the particle roller 13 and the fixed roller 12. Moreover, the pole piece can form a plurality of grooves on the surface through the pressing of the particle roller 13 and the fixed roller 12, which is beneficial to the absorption of the electrolyte solution after the subsequent battery injection. The pole piece rolling device 1 and the system can keep the thickness of the pole piece consistent, avoid the scrapping of the pole piece, and improve the absorption of the electrolyte.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A pole piece rolling device, characterized in that it includes a housing, a fixed roller, a particle roller and a supporting member, and the housing is provided with an accommodating cavity, and the accommodating cavity is used to accommodate the The fixed roller, the particle roller and the resisting member, the fixed roller and the particle roller are both rotatably connected to the inner wall of the accommodating cavity, and the particle roller can move relative to the fixed roller , the abutting member can move relative to the granule roller, and the abutting member is used to abut the granule roller to adjust the distance between the granule roller and the fixed roller for rolling with different thicknesses pole piece. 2. The pole piece rolling device according to claim 1, wherein the particle roller comprises a first rotating shaft and a first pressure roller body, and the first rotating shaft is in contact with the inner wall of the accommodating cavity rotatably connected, and the first rotating shaft can move relative to the fixed roller, the first pressing roller body is arranged on the first rotating shaft, and the first rotating shaft can drive the first pressing roller The roller body rotates. 3. The pole piece rolling device according to claim 2, wherein a plurality of protrusions are arranged on the first pressing roller body, and a plurality of protrusion rings are arranged on the first pressing roller body superior. 4. The pole piece rolling device according to claim 1, characterized in that, the abutment member is provided with a first abutment surface and a second abutment surface, and the first abutment surface and the second abutment surface The abutting surfaces are connected, and the first abutting surface and the second abutting surface can abut against the particle roller. 5. The pole piece rolling device according to claim 1, characterized in that, the pole piece rolling device further comprises a pushing mechanism, and the pushing mechanism is opposed to the abutting member and can be fixed relative to the The movement of the roller is used to push the resisting member to adjust the distance between the particle roller and the fixed roller. 6. The pole piece rolling device according to claim 5, characterized in that, the pushing mechanism comprises a cylinder and a piston rod, and the housing is provided with a first through hole, and the first through hole is connected to the accommodating communicate with the cavity, one end of the piston rod extends into the cylinder, and is movably connected with the cylinder, and the other end of the piston rod can extend into the first through hole, and can be connected with the The backing piece is the backing. 7. The pole piece rolling device according to claim 6, characterized in that, the pushing mechanism further comprises a limiter, the limiter is connected with the housing, and the limiter is provided with a second A through hole, the second through hole corresponds to the first through hole, the piston rod can pass through the second through hole and extend into the first through hole, and the second through hole is used for To limit the radial movement of the piston rod. 8. The pole piece rolling device according to claim 1, wherein the fixed roller comprises a second rotating shaft and a second pressure roller body, and the second rotating shaft is in contact with the inner wall of the accommodating cavity Rotatably connected, the second pressing roller body is arranged on the second rotating shaft, and the second rotating shaft can drive the second pressing roller body to rotate. 9 . The pole piece rolling device according to claim 1 , wherein a feed port is opened on the housing, and the feed port communicates with the accommodating cavity. 10 . 10. A pole piece rolling system, characterized by comprising a feeding device and the pole piece rolling device according to any one of claims 1-9.