A multi-roll calendering equipment

Abstract

This utility model discloses a multi-roll calendering device, relating to the field of calendering equipment technology, comprising: a main frame, the main frame having two roll groups, each roll group including a plurality of first rolls and a drive system, the plurality of first rolls being rotatably mounted on the main frame, and the drive system driving the plurality of first rolls to rotate; the plurality of first rolls of the two roll groups are arranged sequentially along the horizontal direction, and the axes of adjacent first rolls in the same roll group are not on the same horizontal plane; in use, two materials are conveyed between the two roll groups, and when the two materials reach the space between the two roll groups, they are combined with a third material to complete the calendering. Since the axes of adjacent first rolls in the same roll group are not on the same horizontal plane, the first rolls generate lateral force during rolling, ensuring that the two ends of the first rolls are always in the same position, thus maintaining the stability of the working position of the roll group after the first rolls are subjected to force, thereby improving the film formation effect.

Description

Technical Field

[0001] This utility model relates to the field of calendering equipment technology, specifically a multi-roll calendering device. Background Technology

[0002] A calender consists of two or more rollers arranged according to the heating method. It can be divided into cold pressing and hot pressing. Cold pressing is suitable for materials that do not require heating, such as graphite films, graphite sheets, microwave absorbing materials, shielding materials, magnetic materials, and non-ferrous metals. Hot pressing is further divided into water heating, electric heating, oil heating, and electromagnetic heating. Both types of machines press and stretch materials such as rubber, silicone rubber, silicone rubber, phase change materials, PTFE, or plastics into sheets of a certain thickness and surface shape at a specific temperature. They can also be used to coat fiberglass or steel wire fabrics with adhesive.

[0003] In existing dry electrode fabrication processes, fibrous powder needs to be uniformly fed onto the work rolls of a calender. However, in existing calendering equipment, the rolls shift horizontally after calendering, meaning they are in an unstable position during the rolling process, which affects film formation.

[0004] In view of this, there is an urgent need for a multi-roll calender to solve the above problems. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-roll calendering apparatus includes: a main frame, the main frame having two roll groups, the roll groups including a plurality of first rolls and a drive system, the plurality of first rolls being rotatably mounted on the main frame, and the drive system being used to drive the plurality of first rolls to rotate. The first rollers of the two roller groups are arranged sequentially in the horizontal direction, and the axes of adjacent first rollers in the same roller group are not on the same horizontal plane.

[0007] The first rollers of the two roller groups are symmetrically arranged.

[0008] Each of the roller groups includes three of the first rollers.

[0009] A second roller is provided on each of the two roller groups on the side that is far apart from each other, and the diameter of the second roller is larger than the diameter of the first roller.

[0010] A third roller is disposed between the second roller and the adjacent first roller, the diameter of the third roller being smaller than the diameter of the first roller.

[0011] The axis of the third roller is not on the same horizontal plane as the axis of the adjacent first roller, and the axis of the third roller is not on the same horizontal plane as the axis of the adjacent second roller.

[0012] The main frame is equipped with hydraulic cylinders on the sides of the two second rollers that are far apart from each other. The hydraulic cylinders are used to drive the second rollers to move in the horizontal direction.

[0013] The first roller, the second roller, and the third roller are each provided with a main bearing seat at both ends, and the main bearing seat is disposed on the main frame.

[0014] One end of the first roller, the second roller, and the third roller is provided with a position cylinder. One end of the first roller, the second roller, and the third roller is respectively disposed on the position cylinder bearing seat of the corresponding position cylinder. The position cylinder is disposed on the corresponding main bearing seat.

[0015] The main frame is provided with two parallel linear tracks, and the main bearing seat is provided on the corresponding linear track.

[0016] The above-described structure of this utility model can achieve the following beneficial effects: In use, two materials are conveyed between two roller sets. When the two materials reach the two roller sets, they are combined with a third material to complete the calendering. Since the axes of the adjacent first rollers in the same roller set are not on the same horizontal plane, the first roller will generate a lateral force during rolling, so that the two ends of the first roller are always in the same position. Therefore, after the first roller is subjected to force, the working position of the roller set is stable, thereby improving the film formation effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of this embodiment; Figure 2 This is a cross-sectional view of the structure in this embodiment; Figure 3 This is a schematic diagram of the structure of the first roller, the second roller, and the third roller during processing in this embodiment; Figure 4 This is a schematic diagram of the installation structure of the first roller, the second roller, and the third roller in this embodiment.

[0018] In the diagram: 1. Main frame; 2. First roller; 3. Second roller; 4. Third roller; 5. Hydraulic cylinder; 6. Positioning cylinder; 7. Main bearing seat; 8. Linear track. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0021] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0022] like Figures 1-3 As shown, a multi-roll calendering equipment includes: a main frame 1, the main frame 1 is provided with two roll groups, the roll groups include a plurality of first rolls 2 and a drive system, the plurality of first rolls 2 are rotatably mounted on the main frame 1, and the drive system is used to drive the plurality of first rolls 2 to rotate (adjacent first rolls 2 rotate in opposite directions). Several first rollers 2 of two roller groups are arranged sequentially in the horizontal direction, and the axes of adjacent first rollers 2 in the same roller group are not on the same horizontal plane.

[0023] Based on the above structure, during use, two materials are conveyed between two roller sets. When the two materials reach the space between the two roller sets (the first roller 2 on the side closest to each other rotates in opposite directions), they are combined with a third material to complete the calendering. Since the axes of adjacent first rollers 2 in the same roller set are not on the same horizontal plane, the first roller 2 will generate a lateral force during rolling, so that the two ends of the first roller 2 are always in the same position (the two ends of the first roller 2 are installed through bearings, that is, the two ends of the first roller 2 are in the same position in the bearings). Therefore, the working position of the roller set is kept stable after the first roller 2 is subjected to force, thereby improving the film formation effect.

[0024] like Figure 2 and Figure 3As shown, several first rollers 2 of the two roller groups are symmetrically arranged. In this embodiment, each roller group includes three first rollers 2, and the axis height of the first rollers 2 on both sides is the same. In this way, it can be ensured that the horizontal height of the axis of two adjacent first rollers 2 is different, and the length of the material conveying path and the conveying time on the two roller groups are consistent.

[0025] like Figure 2 and 3 As shown, a second roller 3 is provided on each side of the two roller groups that are far apart from each other. The diameter of the second roller 3 is larger than that of the first roller 2. A third roller 4 is provided between the second roller 3 and the adjacent first roller 2. The diameter of the third roller 4 is smaller than that of the first roller 2. Thus, the second roller 3, which has the largest diameter, acts as a support roller. Its diameter is larger than that of the other working rollers (first roller 2 and third roller 4), and its rigidity is the greatest. The second roller 3 participates in the calendering of the powder and provides rigid support when the roller group is under force. Furthermore, the axis of the third roller 4 is not on the same horizontal plane as the axis of the adjacent first roller 2, and the axis of the third roller 4 is not on the same horizontal plane as the axis of the adjacent second roller 3. The purpose of this arrangement is the same as the purpose of the arrangement of the first roller 2 mentioned above (the axes of adjacent first rollers 2 in the same roller group are not on the same horizontal plane).

[0026] like Figure 2 and Figure 3 As shown, the main frame 1 has hydraulic cylinders 5 on the sides of the two second rollers 3 that are far apart from each other. The hydraulic cylinders 5 drive the second rollers 3 to move horizontally. In this way, the hydraulic cylinders on both sides synchronously control the left and right (horizontal) movement of the roller system (first roller 2, second roller 3, and third roller 4) through the hydraulic system. By adjusting the difference in oil supply between the two hydraulic cylinders, the pressure of the roller system can be dynamically adjusted. For example, when pressing different materials, increasing the pressure on one side of the hydraulic cylinder can enhance the local compaction effect, while the other side maintains a constant pressure to maintain overall stability. The coordinated work of the two hydraulic cylinders can also balance mechanical vibration and reduce equipment shaking caused by uneven force on one side. In high-speed continuous operation, this balancing mechanism can significantly improve the smoothness of equipment operation.

[0027] like Figure 1 and Figure 4 As shown, the first roller 2, the second roller 3, and the third roller 4 are all provided with main bearing seats 7 at both ends. The main bearing seats 7 are set on the main frame 1. Specifically, the main frame 1 is provided with two parallel linear tracks 8, and the main bearing seats 7 are set on the corresponding linear tracks 8. In this way, the main bearing seats 7 can be driven to move on the linear tracks 8 by the hydraulic cylinder 5, thereby guiding the movement of the roller system.

[0028] like Figure 1As shown, a position cylinder 6 is provided at one end of the first roll 2, the second roll 3, and the third roll 4. One end of the first roll 2, the second roll 3, and the third roll 4 is respectively set on the position cylinder bearing seat 61 of the corresponding position cylinder 6. The position cylinder 6 is set on the corresponding main bearing seat 7. Each roll (first roll 2, second roll 3, or third roll 4) independently adopts a position cylinder mechanism (the position cylinder structure at this position remains unchanged). The purpose is to eliminate the clearance in the bearing at the end of each roll by means of the position cylinder mechanism (the position cylinder 6 is equipped with a displacement gauge inside to accurately detect the extension position of the oil cylinder, so that the position cylinders 6 used in pairs do not tilt when the position cylinder force is applied, thereby making each roll stable inside the bearing). This eliminates the influence of the bearing clearance on the roll gap. The position cylinder force is in the same direction as the rolling resultant force, and the position cylinder force, as an internal force, works in combination with the rolling force to make each roll in a more stable working position.

[0029] Further optimization involves driving each roll via an independent drive mechanism (the drive mechanism includes a drive motor and a reducer; a high-precision reducer with a shrink sleeve function is rigidly connected to the roll body, solving the problem of the impact of the drive part's rotational clearance on the rolling effect). This structure, employing an integrated frame to intercept and absorb rolling reverse torque, with each reducer mounted on the same base 9, ensures that adjacent rolls, operating in opposite directions, cancel each other out in torque during rolling. The intercepting torque borne by the reducer mounting base is not significant. Since the reducer base is designed on the integrated frame, it also improves the overall rigidity of the equipment. In other words, the reverse torque generated during rolling is borne by the reducer base, then transmitted to the guide rail slider structure, and finally to the frame. The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A multi-roll calendering device, characterized in that, include: The main frame (1) is provided with two roller groups, each roller group including a plurality of first rollers (2) and a drive system. The plurality of first rollers (2) are rotatably mounted on the main frame (1), and the drive system is used to drive the plurality of first rollers (2) to rotate. The first rollers (2) of the two roller groups are arranged sequentially in the horizontal direction, and the axes of adjacent first rollers (2) in the same roller group are not on the same horizontal plane.

2. The multi-roll calendering equipment according to claim 1, characterized in that: The first rollers (2) of the two roller groups are symmetrically arranged.

3. The multi-roll calendering equipment according to claim 2, characterized in that: Each of the roller groups includes three of the first rollers (2).

4. The multi-roll calendering equipment according to claim 1, characterized in that: A second roller (3) is provided on each side of the two roller groups that are far apart from each other. The diameter of the second roller (3) is larger than the diameter of the first roller (2).

5. A multi-roll calendering apparatus according to claim 4, characterized in that: A third roller (4) is provided between the second roller (3) and the adjacent first roller (2), and the diameter of the third roller (4) is smaller than the diameter of the first roller (2).

6. A multi-roll calendering apparatus according to claim 5, characterized in that: The axis of the third roller (4) is not on the same horizontal plane as the axis of the adjacent first roller (2), and the axis of the third roller (4) is not on the same horizontal plane as the axis of the adjacent second roller (3).

7. A multi-roll calendering apparatus according to claim 4, characterized in that: The main frame (1) is provided with a hydraulic cylinder (5) on the side of the two second rollers (3) that are far apart from each other. The hydraulic cylinder (5) is used to drive the second rollers (3) to move in the horizontal direction.

8. A multi-roll calendering apparatus according to claim 5, characterized in that: The first roller (2), the second roller (3) and the third roller (4) are provided with main bearing seats (7) at both ends, and the main bearing seats (7) are provided on the main frame (1).

9. A multi-roll calendering apparatus according to claim 8, characterized in that: One end of the first roller (2), the second roller (3) and the third roller (4) is provided with a position cylinder (6). One end of the first roller (2), the second roller (3) and the third roller (4) are respectively provided on the position cylinder bearing seat of the corresponding position cylinder (6). The position cylinder (6) is provided on the corresponding main bearing seat (7).

10. A multi-roll calendering apparatus according to claim 9, characterized in that: The main frame (1) is provided with two parallel linear tracks (8), and the main bearing seat (7) is provided on the corresponding linear track (8).

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