Rolling mechanism, rolling machine and battery production system
By using a hydraulic cylinder to drive the roller press mechanism close to or away from the roller seat in battery production, the side arch bracket is avoided, the problems of high weight and cost of the roller press are solved, and a lighter and economical production system is achieved.
Patent Information
- Application Number
- CN202420127598.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-18
AI Technical Summary
In the production of existing battery, the side arch bracket of the roller press has a large weight and high cost, which leads to an increase in overall weight and production costs, and it is necessary to reduce the weight of the roller press and reduce the cost.
Using a roller pressing mechanism, by pressing rollers and roller seats arranged side by side in the first direction, driving members such as hydraulic cylinders drive adjacent roller seats to be close to or away, so as to achieve mutual close to or away of pressing rollers, avoiding the use of side arch support. , reduce overall weight and reduce production costs.
It effectively reduces the overall weight of the roller press, reduces production costs, and improves the stability and service life of the structure under large rolling force.
Smart Images
Figure CN222133001U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production systems, in particular to a rolling mechanism, a rolling machine and a battery production system. Background Art
[0002] At present, in the battery production process, using a roller press to roll the battery cell pole pieces is an important part of battery production.
[0003] In the related art, when the roller press is working, it is necessary to use components such as hydraulic cylinders to push the two rollers to squeeze the materials to provide rolling force. In the process of the hydraulic cylinder applying force to the rollers, a corresponding reaction force will be generated and applied to the bracket. Therefore, in order to ensure the rigidity of the roller installation point, the roller press generally uses a side arch bracket as the main support body of the roller system.
[0004] However, in actual applications, the side arch is heavy and the production cost is high. How to reduce the weight of the roller press and reduce the production cost of the roller press has become an important issue that needs to be solved urgently. Utility Model Content
[0005] The embodiments of the utility model provide a rolling mechanism, a rolling machine and a battery production system, which are used to solve the defects of the side arches in the prior art, such as heavy weight and high cost, and realize the reduction of the overall weight of the rolling machine and reduce the production cost.
[0006] The utility model provides a rolling mechanism, comprising:
[0007] A pair of pressing rollers arranged side by side along a first direction, wherein the axes of the pressing rollers are perpendicular to the first direction;
[0008] Roller seats are connected to the two ends of the pressure roller, and the pressure roller is rotatably connected to the roller seats, so that the pressure roller can rotate around its own axis; the adjacent roller seats arranged along the first direction can approach or move away from each other, so that the adjacent pressure rollers can approach or move away from each other;
[0009] The driving component is connected between two adjacent roller seats arranged along the first direction, and is suitable for providing a driving force in the first direction.
[0010] According to a rolling mechanism provided by the utility model, the pressing roller is rotatably connected to the roller seat via a bearing.
[0011] According to a rolling mechanism provided by the utility model, the driving component includes a hydraulic cylinder;
[0012] The cylinder body and the piston rod of the hydraulic cylinder are respectively fixedly connected to the adjacent roller seats.
[0013] According to a rolling mechanism provided by the utility model, between two adjacent roller seats arranged along the first direction, the cylinder body is integrally formed in one of the roller seats.
[0014] According to a rolling mechanism provided by the utility model, a clearance groove is arranged on the other roller seat at a position corresponding to the piston rod, and the end of the piston rod is embedded in the clearance groove.
[0015] According to a rolling mechanism provided by the utility model, one side opposite to the two adjacent roller seats is formed as a mounting surface, and the driving component is connected to the center position of the mounting surface.
[0016] According to a rolling mechanism provided by the utility model, a first stopper is provided at the end of the piston rod, and a second stopper is provided on the inner wall of the clearance groove;
[0017] A surface of the first stopper facing the cylinder body is abutted and matched with a surface of the second stopper facing away from the cylinder body.
[0018] According to a rolling mechanism provided by the utility model, it also includes a guide structure for constraining the roller seat in the first direction.
[0019] According to a rolling mechanism provided by the utility model, the guide structure includes a guide rail arranged along the first direction, and the roller seat can be slidably engaged with the guide rail.
[0020] According to a rolling mechanism provided by the utility model, a guide groove extending along the first direction is arranged on the guide rail, and the side portion of the roller seat is embedded in the guide groove.
[0021] The utility model also provides a roller press, which comprises at least one group of the above-mentioned roller press mechanisms.
[0022] The utility model also provides a battery production system, comprising the above-mentioned roller press.
[0023] The utility model provides a rolling mechanism, a rolling machine and a battery production system. In actual work, a driving force in a first direction can be provided by a driving component to drive two adjacent roller seats to approach or move away from each other, so as to realize the approach or move away of two adjacent pressure rollers. During rolling, the two roller seats are driven to approach each other by the driving component, and the two pressure rollers then approach each other until a preset gap is reached, and the material is rolled and formed between the two pressure rollers. During the rolling process, the two adjacent roller seats can provide a connection position for the driving component. Similarly, when the driving component is working, it only applies a force to the two adjacent roller seats without the support of other components, so the use of side arches can be avoided. Compared with the related technology, the overall weight of the rolling machine is reduced, and the production cost is reduced. Moreover, in this structure, the driving component is subjected to a small bending moment when working, and can be suitable for working conditions with large rolling force. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0025] Figure 1 This is one of the structural schematic diagrams of the rolling mechanism provided by the embodiment of the utility model;
[0026] Figure 2 This is the second structural schematic diagram of the rolling mechanism provided in the embodiment of the utility model.
[0027] Reference numerals:
[0028] 10. Pressure roller; 11. Roller seat; 110. Bearing; 111. Give way groove; 12. Driving component; 120. Piston rod; 20. Guide rail; 200. Guide groove. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] In order to facilitate the understanding of the rolling mechanism, rolling machine and battery production system provided by the utility model, the application background is first explained. Using a roller press to roll the battery cell pole pieces is an important part of battery production. In the related technology, when the roller press is working, it is necessary to use components such as hydraulic cylinders to push the two rollers to extrude the materials to generate rolling force. However, the hydraulic cylinder will exert an equal reaction force on the bracket while pushing the rollers. Therefore, in order to ensure the rigidity of the roller installation point, the roller press generally uses a side arch bracket as the main support of the roller system.
[0031] However, the side archways have the disadvantages of being heavy and costly, and therefore, how to reduce production costs has become an important issue that needs to be addressed urgently.
[0032] Based on the above, the utility model provides a rolling mechanism, a rolling machine and a battery production system, which can avoid using side archways as supports, reduce the overall weight of the rolling machine, and reduce production costs.
[0033] Combine the following Figure 1-Figure 2 The utility model describes a rolling mechanism, a rolling machine and a battery production system.
[0034] Reference Figure 1 A rolling mechanism comprises a pressure roller 10, a roller seat 11 and a driving component 12; wherein two pressure rollers 10 are arranged side by side along a first direction L, and the axial direction Z of the pressure roller 10 is perpendicular to the first direction L; the roller seats 11 are correspondingly connected to the two ends of the pressure roller 10, and the pressure roller 10 is rotatably connected to the roller seat 11, so that the pressure roller 10 can rotate around its own axis; two adjacent roller seats 11 arranged in the first direction L can approach or move away from each other, so that the adjacent pressure rollers 10 can approach or move away from each other; the driving component 12 is connected between two adjacent roller seats 11 arranged in the first direction L, and is suitable for providing a driving force in the first direction L to drive the two adjacent roller seats 11 to approach or move away from each other.
[0035] In actual work, the driving component 12 can provide a driving force along the first direction L to drive the two adjacent roller seats 11 to approach or move away from each other, so as to realize the approach or move away of the two adjacent pressure rollers 10; during rolling, the driving component 12 drives the two roller seats 11 to approach each other, and the two pressure rollers 10 approach each other until a preset gap is reached, so that the two pressure rollers 10 apply a rolling force to the material, and the material is rolled and formed between the two pressure rollers 10. During the rolling process, the two adjacent roller seats 11 can provide a connection position for the driving component 12. Similarly, when the driving component 12 is working, it only applies a force to the two adjacent roller seats 11 without the support of other components. Therefore, the use of side arches can be avoided. Compared with the related technology, the overall weight of the roller press is reduced, and the production cost is reduced; moreover, in this structure, the driving component 12 is subjected to a small bending moment when working, which can be suitable for working conditions with larger rolling force.
[0036] Reference Figure 1 The roller seat 11 is fixedly connected with a bearing 110, and the pressure roller 10 is rotatably connected to the roller seat 11 through the bearing 110, so as to improve the smoothness of the rotation of the pressure roller 10. Specifically, the outer ring of the bearing 110 can be fixedly connected to the roller seat 11, so that the end of the pressure roller 10 is fixedly connected to the inner ring of the bearing 110.
[0037] Of course, in other embodiments, the bearing 110 may be replaced by bearing shells, sleeves and other components, as long as the pressure roller 10 can rotate smoothly.
[0038] Reference Figure 1 and Figure 2 The driving component 12 can be a hydraulic cylinder, and the cylinder body and piston rod 120 of the hydraulic cylinder are fixedly connected to the two adjacent roller seats 11 respectively; during rolling, the two adjacent roller seats 11 are driven by the hydraulic cylinder to approach or move away from each other, so as to achieve the mutual approach or distance between the two adjacent pressure rollers 10, and the force of the hydraulic cylinder is applied to the two adjacent roller seats 11 through the cylinder body and the piston rod 120 respectively.
[0039] In addition, a displacement sensor, such as an inductive displacement sensor, an ultrasonic ranging sensor, etc., can be set in the hydraulic cylinder. During operation, the displacement of the piston rod 120 can be monitored in real time to obtain the gap between the two pressure rollers 10 and realize the control of the roller gap between the two pressure rollers 10.
[0040] Specifically, one side opposite to the two roller seats 11 is formed as a mounting surface for providing a mounting position for the driving component 12 . The driving component 12 is connected to the center of the mounting surface, so that the driving force can be more evenly distributed on the roller seats 11 .
[0041] However, when adopting the above-mentioned installation method, there may be a problem of a small gap between two adjacent roller seats 11, which is not conducive to the installation of the hydraulic cylinder. In order to solve the above-mentioned problem, in this embodiment, between two adjacent roller seats 11 arranged in the first direction L, the cylinder body of the hydraulic cylinder is integrally formed in one of the roller seats 11, and the piston rod 120 extends out of the cylinder body and is fixedly connected to the other roller seat 11.
[0042] Of course, in another embodiment, the cylinder body of the hydraulic cylinder and the roller seat 11 can also be separately arranged. Specifically, a mounting groove can be opened on the roller seat 11, and the cylinder body of the hydraulic cylinder can be fixedly connected to the mounting groove, so as to reduce the limitation of the installation space.
[0043] In order to further reduce the space limitation, a clearance groove 111 is provided on the other roller seat 11 at a position corresponding to the hydraulic cylinder, and one end of the piston rod 120 extending out of the cylinder body is embedded in the clearance groove 111 .
[0044] It is understandable that there are multiple optional fixing methods for the piston rod 120 and the roller seat 11. For example, in one embodiment, the piston rod 120 and the roller seat 11 can be connected by bolts and other connecting parts; in another embodiment, a first stopper can be provided at the end of the piston rod 120, and a second stopper can be provided on the inner wall of the clearance groove 111. The first stopper faces the cylinder body and the second stopper faces away from the cylinder body, thereby preventing the piston rod 120 from being separated from the clearance groove 111, and achieving the connection and fixation of the piston rod 120 and the roller seat 11. Of course, the connection methods of the piston rod 120 and the roller seat 11 are not limited to the above-mentioned connection methods, and other methods can be used as long as they can achieve the connection and fixation of the piston rod 120 and the roller seat 11.
[0045] It can be understood that the cylinder body and the piston rod 120 are only part of the hydraulic cylinder structure but not all of it. In order to realize the reciprocating motion of the piston rod 120, the hydraulic cylinder may also include other structures. In the embodiment of the utility model, although the shape and formation method of the cylinder body of the hydraulic cylinder are changed, the working principle of the hydraulic cylinder is not changed. Therefore, the specific structure of the hydraulic cylinder can refer to the prior art and will not be repeated in this embodiment.
[0046] It is understandable that the driving component 12 includes but is not limited to a hydraulic cylinder. In other embodiments, the driving component 12 may also be a linear driving element such as a cylinder or an electric push rod, as long as it can drive the movement of two adjacent roller seats 11 and provide the required rolling force.
[0047] In another embodiment, the driving component 12 may be connected to the side of the roller seat 11 parallel to the first direction L. In this way, the problem of limited installation space can be solved, but the uniformity of the force applied to the roller seat 11 may be affected.
[0048] Reference Figure 1 The rolling mechanism also includes a guide structure for constraining the roller seat 11 in the first direction L; the roller seat 11 can be constrained in the first direction L through the guide structure, so that the roller seat 11 only has the degree of freedom along the first direction L, thereby limiting and guiding the movement of two adjacent roller seats 11, and improving the stability and smoothness of the movement of the two adjacent roller seats 11.
[0049] Specifically, the guide structure includes a guide rail 20 arranged along the first direction L, and the roller seat 11 is slidably engaged with the guide rail 20. By making the roller seat 11 engage with the guide rail 20, the movement direction of the roller seat 11 is constrained.
[0050] Specifically, a guide groove 200 extending along the first direction L is provided on the guide rail 20 , and the side of the roller seat 11 is embedded in the guide groove 200 . In actual operation, two adjacent roller seats 11 will move along the first direction L under the guidance of the guide groove 200 .
[0051] Specifically, the guide groove 200 can be a T-shaped groove, a C-shaped groove, a dovetail groove, etc., as long as the roller seat 11 can be restricted on the guide rail 20 and the movement direction of the roller seat 11 can be constrained in the first direction L.
[0052] Specifically, both ends of the guide groove 200 along the first direction L are closed to prevent the roller seat 11 from being separated from the guide rail 20 at the positions at both ends of the guide groove 200 .
[0053] Of course, the guide rail 20 and the roller seat 11 are not limited to the above-mentioned matching method. In another embodiment, a slide groove extending along the first direction L is provided on the side of the roller seat 11, and the slide groove passes through the opposite sides of the roller seat 11 along the first direction L; the guide rail 20 is configured as a convex guide rail, that is, the cross-section of the guide rail 20 is T-shaped, dovetail-shaped, etc., and the guide rail 20 is engaged with the slide groove on the side of the roller seat 11. In this way, the roller seat 11 can also be restricted to the guide rail 20 and the movement of the roller seat 11 can be constrained to the first direction L.
[0054] In another embodiment, two guide rails 20 may be provided at each end of the pressure roller 10, namely a first guide rail and a second guide rail. The first guide rail and the second guide rail are parallel to each other and arranged at intervals along the second direction W. The second direction W is perpendicular to the first direction L and the axial direction Z of the pressure roller 10. The first guide rail and the second guide rail are respectively engaged with the roller seat 11 on opposite sides of the second direction W.
[0055] The first guide rail and the second guide rail can, on the one hand, limit the position of the roller seat 11 and constrain the roller seat 11 in the first direction L so that it has no freedom in other directions; on the other hand, the first guide rail and the second guide rail can disperse the force, thereby increasing the service life of the guide rail 20 and making the rolling mechanism more stable and reliable.
[0056] In actual applications, the first direction L can be parallel to the ground, or be set at an angle to the ground, for example, perpendicular to the ground; and, according to actual application scenarios, the guide rail 20 can be installed on other support bodies to meet actual production needs.
[0057] The roller press provided by the utility model is described below. The roller press described below and the roller press mechanism described above can be referred to each other.
[0058] A roller press comprises at least one set of the above-mentioned roller pressing mechanisms.
[0059] The roller press also includes a power mechanism, which is transmission-connected to one of the two rollers 10 and is used to drive one of the two rollers 10 to rotate, so that one of the rollers 10 serves as an active roller and the other roller 10 serves as a driven roller, and the raw material is rolled into shape by the rolling force between the two rollers 10.
[0060] The battery production system provided by the present invention is described below. The battery production system described below and the roller press described above can be referred to each other.
[0061] A battery production system comprises the above-mentioned roller press, which is used for rolling the battery cell pole pieces into shape.
[0062] The novelty of the present invention is that during actual operation, the two roller seats 11 are driven to approach each other by the driving component 12, and the two pressure rollers 10 are then moved to approach each other until a preset gap is reached, and the material is rolled and formed between the two pressure rollers 10. During the rolling process, the two adjacent roller seats 11 can provide a connection position for the driving component 12. Similarly, when the driving component 12 is working, it only applies a force to the two adjacent roller seats 11 without the support of other components, so the use of side arches can be avoided. Compared with related technologies, the overall weight of the roller press is reduced, and the production cost is reduced; moreover, in this structure, the driving component 12 is subjected to a small bending moment when working, and can be suitable for working conditions with larger rolling forces.
[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A rolling mechanism, characterized in that: include: A pair of pressing rollers (10) arranged side by side along a first direction, wherein the axes of the pressing rollers (10) are perpendicular to the first direction; A roller seat (11) is correspondingly connected to the two ends of the pressure roller (10); the pressure roller (10) is rotatably connected to the roller seat (11), so that the pressure roller (10) can rotate around its own axis; the adjacent roller seats (11) arranged along the first direction can approach or move away from each other, so that a pair of pressure rollers (10) can approach or move away from each other; The driving component (12) is connected between two adjacent roller seats (11) arranged along the first direction, and is suitable for providing a driving force in the first direction.
2. The rolling mechanism according to claim 1, characterized in that: The driving component (12) comprises a hydraulic cylinder; The cylinder body and piston rod (120) of the hydraulic cylinder are respectively fixedly connected to the adjacent roller seats (11).
3. The rolling mechanism according to claim 2, characterized in that: Between two adjacent roller seats (11) arranged along the first direction, the cylinder body is integrally formed in one of the roller seats (11).
4. The rolling mechanism according to claim 3, characterized in that: A clearance groove (111) is provided on the other roller seat (11) at a position corresponding to the piston rod (120), and the end of the piston rod (120) is embedded in the clearance groove (111).
5. The rolling mechanism according to claim 1, characterized in that: The pressure roller (10) is rotatably connected to the roller seat (11) via a bearing (110).
6. The rolling mechanism according to any one of claims 1 to 5, characterized in that: It also includes a guide structure for constraining the roller seat (11) in the first direction.
7. The rolling mechanism according to claim 6, characterized in that: The guide structure comprises a guide rail (20) arranged along the first direction, and the roller seat (11) is slidably engaged with the guide rail (20).
8. The rolling mechanism according to claim 7, characterized in that: The guide rail (20) is provided with a guide groove (200) extending along the first direction, and the side portion of the roller seat (11) is embedded in the guide groove (200).
9. A roller press, characterized in that: It comprises at least one group of rolling mechanisms as described in any one of claims 1-8.
10. A battery production system, characterized in that: Comprising the roller press as claimed in claim 9.