Thermal compounding rolling structure

Abstract

The utility model provides a thermal compounding rolling structure and relates to the technical field of solid-state battery pole piece processing equipment. The driving mechanism is connected to the inner side upper bearing seat and the outer side upper bearing seat and used for adjusting the pressure between the upper composite roller and the lower composite roller, and the pressure sensor is used for monitoring the pressure between the upper composite roller and the lower composite roller. Gap fine adjustment mechanisms are installed between the inner side upper bearing seat and the inner side lower bearing seat and between the outer side upper bearing seat and the outer side lower bearing seat, the gap fine adjustment mechanisms are used for adjusting the gap between the upper composite roller and the lower composite roller, and the displacement sensor is used for monitoring the gap between the upper composite roller and the lower composite roller. And the thermal compounding rolling structure can accurately control the pressure and the gap between the upper compounding roller and the lower compounding roller, so that the processing yield of the solid-state battery pole piece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state battery pole piece processing equipment, in particular to a hot composite rolling structure. Background Art

[0002] In the solid-state battery production industry, high requirements are placed on the thickness control of the electrode sheets and the composite transfer effect. However, pressure control and gap control are the foundation. Currently, it is often the case that the gap cannot be guaranteed while the pressure is guaranteed, and vice versa. As a result, the thickness deviation of the composite electrode sheets is large, or the composite transfer effect is poor. In addition, the installation and adjustment are difficult and cumbersome, and the required requirements cannot be met. In addition, the controllable feedback of the roller spacing cannot be guaranteed in long-term use, resulting in batch defects such as excessive spacing deviation after a period of use. Utility Model Content

[0003] The purpose of the utility model is to provide a hot composite rolling structure, which can accurately control the pressure and gap between the upper composite roller and the lower composite roller, thereby improving the yield rate of solid-state battery electrode processing.

[0004] The embodiment of the present utility model is achieved as follows:

[0005] The utility model provides a hot composite rolling structure, which is applied to the processing of solid-state battery pole pieces. The hot composite rolling structure includes an upper composite roller, an inner upper bearing seat, an outer upper bearing seat, a driving mechanism, a pressure sensor, a lower composite roller, an inner lower bearing seat, an outer lower bearing seat, a gap fine-tuning mechanism and a displacement sensor;

[0006] The upper composite roller is installed between the inner upper bearing seat and the outer upper bearing seat, and the lower composite roller is installed between the inner lower bearing seat and the outer lower bearing seat. The upper composite roller and the lower composite roller are used to press the solid-state battery pole pieces. The driving mechanism is connected to the inner upper bearing seat and the outer upper bearing seat. The driving mechanism is used to adjust the pressure between the upper composite roller and the lower composite roller. The pressure sensor is used to monitor the pressure between the upper composite roller and the lower composite roller. Gap fine-tuning mechanisms are installed between the inner upper bearing seat and the inner lower bearing seat and between the outer upper bearing seat and the outer lower bearing seat. The gap fine-tuning mechanism is used to adjust the gap between the upper composite roller and the lower composite roller. The displacement sensor is used to monitor the gap between the upper composite roller and the lower composite roller.

[0007] In an optional embodiment, the gap fine-tuning mechanism includes a wedge-shaped fixed block, a wedge-shaped movable block and a position adjustment mechanism. The wedge-shaped fixed block is fixedly mounted on the outer upper bearing seat and the inner upper bearing seat, and the wedge-shaped movable block and the position adjustment mechanism are mounted on the outer lower bearing seat and the inner lower bearing seat. The wedge-shaped fixed block and the wedge-shaped movable block are slidably fitted together, and the position adjustment mechanism is used to adjust the position of the wedge-shaped movable block relative to the wedge-shaped fixed block, thereby adjusting the overall height of the wedge-shaped fixed block and the wedge-shaped movable block.

[0008] In an optional embodiment, the bottom surface of the wedge-shaped fixed block has a first inclined surface, the top surface of the wedge-shaped movable block has a second inclined surface, and the first inclined surface and the second inclined surface are in sliding engagement.

[0009] In an optional embodiment, the position adjustment mechanism includes two adjustment fixing blocks and two adjustment bolts. The two adjustment fixing blocks are mounted on the outer lower bearing seat and are located on both sides of the wedge-shaped movable block. The two adjustment bolts are respectively mounted on the two adjustment fixing blocks and respectively abut against the two ends of the wedge-shaped movable block.

[0010] In an optional embodiment, the axes of the two adjusting bolts are parallel to the axes of the upper composite roller and the lower composite roller.

[0011] In an optional embodiment, the driving mechanism includes an electric cylinder and a connecting piece, and the inner upper bearing seat and the outer upper bearing seat are both connected to the electric cylinder through the connecting piece.

[0012] In an optional embodiment, the driving mechanism further includes a linear guide rail, which is perpendicular to the axis of the upper composite roller and the lower composite roller, and the inner upper bearing seat and the outer upper bearing seat are both slidably mounted on the linear guide rail.

[0013] In an optional embodiment, the hot composite rolling structure further includes a reducer base, a reducer and a motor. The upper composite roller and the lower composite roller are both connected to the motor via the reducer, and the reducer is installed on the reducer base.

[0014] In an optional embodiment, pressure sensors are installed between the connecting member and the inner upper bearing seat and between the connecting member and the outer upper bearing seat.

[0015] In an optional embodiment, displacement sensors are installed on both the inner lower bearing seat and the outer lower bearing seat.

[0016] The beneficial effects of the thermal composite rolling structure provided by the embodiment of the utility model include:

[0017] 1. This effectively solves the problem of the conventional roller gap and roller pressure not being able to be guaranteed simultaneously on the market. The gap fine-tuning mechanism allows for high-precision fine-tuning of the gap, enabling rapid switching for various product types with different thickness requirements. The simple and reliable structure improves the yield rate of composite products and the quality of manufactured products.

[0018] 2. Adding high-precision contact displacement sensors to perform real-time detection on both sides of the pressure roller solves the problem of large deviation in the distance between the upper and lower pressure rollers during assembly and difficulty in ensuring the parallelism of the pressure rollers in the length direction. It can also monitor the distance changes in real time during working conditions and provide early warning through the program to avoid the problem of inconsistent composite thickness at both ends caused by distance changes after long-term work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a first perspective of a thermal composite rolling structure provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a second viewing angle of a thermal composite rolling structure provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a third viewing angle of the thermal composite rolling structure provided in an embodiment of the present invention.

[0023] Icons: 1-upper composite roller; 2-inner upper bearing seat; 3-outer upper bearing seat; 4-electric cylinder; 5-connecting part; 6-linear guide; 7-pressure sensor; 8-lower composite roller; 9-inner lower bearing seat; 10-outer lower bearing seat; 11-wedge-shaped fixed block; 12-wedge-shaped movable block; 13-fixed block; 14-adjusting bolt; 15-displacement sensor; 16-reducer seat; 17-reducer; 18-motor; 19-electrode material; 20-carbon-coated aluminum foil; 21-electrolyte layer. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] 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 rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Please refer to Figure 1 and Figure 2 This embodiment provides a hot composite rolling structure, which is used for solid-state battery electrode processing. The hot composite rolling structure includes an upper composite roller 1, an inner upper bearing seat 2, an outer upper bearing seat 3, a driving mechanism, a pressure sensor 7, a lower composite roller 8, an inner lower bearing seat 9, an outer lower bearing seat 10, a gap fine-tuning mechanism, a displacement sensor 15, a reducer seat 16, a reducer 17 and a motor 18.

[0031] The upper composite roller 1 is mounted between the inner upper bearing block 2 and the outer upper bearing block 3 via bearings and locknuts. The lower composite roller 8 is mounted between the inner lower bearing block 9 and the outer lower bearing block 10 via bearings and locknuts. The space between the upper composite roller 1 and the lower composite roller 8 is used to press together solid-state battery electrodes. Specifically, the electrode material 19, carbon-coated aluminum foil 20, and electrolyte layer 21 are fed into the space between the upper composite roller 1 and the lower composite roller 8. A drive mechanism is connected to the inner upper bearing block 2 and the outer upper bearing block 3. The drive mechanism adjusts the pressure between the upper composite roller 1 and the lower composite roller 8. A pressure sensor 7 monitors the pressure between the upper composite roller 1 and the lower composite roller 8. Gap fine-tuning mechanisms are installed between the inner upper bearing block 2 and the inner lower bearing block 9, and between the outer upper bearing block 3 and the outer lower bearing block 10. These mechanisms adjust the gap between the upper composite roller 1 and the lower composite roller 8. This ensures that the drive mechanism maintains the composite pressure while the gap fine-tuning mechanism precisely controls the composite gap.

[0032] Displacement sensor 15 is used to monitor the gap between the upper and lower composite rolls 1, 8. Displacement sensors 15 are mounted on both the inner lower bearing block 9 and the outer lower bearing block 10. Based on the distance between the inner upper and inner lower bearing blocks 2, 9, measured by displacement sensor 15, the distance between the upper and lower composite rolls 1, 8, can be determined. This monitoring of the composite gap facilitates rapid changeovers, ensuring minimal deviation between the ends of the composite rolls, high composite precision, and visual adjustment for ease of adjustment.

[0033] The drive mechanism includes an electric cylinder 4, a connector 5, and a linear guide 6. Both the inner upper bearing seat 2 and the outer upper bearing seat 3 are connected to the electric cylinder 4 via the connector 5. Pressure sensors 7 are installed between the connector 5 and the inner upper bearing seat 2, and between the connector 5 and the outer upper bearing seat 3. The pressure exerted by the electric cylinder 4 on the inner upper bearing seat 2 or the outer upper bearing seat 3, as measured by the pressure sensors 7, is equal to the pressure between the upper composite roller 1 and the lower composite roller 8. This increases the output of the pressure sensor 7 at the pressure end, precisely controlling the composite pressure. The spacing between the upper and lower composite rollers is maintained to the maximum dimensional limit through machining precision, preventing collision and friction between the rollers and damaging their mirror surfaces. Real-time distance monitoring and feedback are also employed, addressing issues related to composite rolling in the industry from multiple perspectives, both functionally and installation-wise, improving equipment installation efficiency and product quality.

[0034] The linear guide 6 is perpendicular to the axis of the upper composite roller 1 and the lower composite roller 8. The inner upper bearing seat 2 and the outer upper bearing seat 3 are both slidably mounted on the linear guide 6. In this way, the inner upper bearing seat 2 and the outer upper bearing seat 3 can move up and down along the linear guide 6. The upper composite roller 1 and the lower composite roller 8 are both connected to the motor 18 through a reducer 17, and the reducer 17 is mounted on the reducer base 16.

[0035] Please refer to Figure 3 The gap fine-tuning mechanism includes a wedge-shaped fixed block 11, a wedge-shaped movable block 12 and a position adjustment mechanism. The wedge-shaped fixed block 11 is fixedly installed on the outer upper bearing seat 3 and the inner upper bearing seat 2, and the wedge-shaped movable block 12 and the position adjustment mechanism are installed on the outer lower bearing seat 10 and the inner lower bearing seat 9. The wedge-shaped fixed block 11 and the wedge-shaped movable block 12 are slidably matched. The position adjustment mechanism is used to adjust the position of the wedge-shaped movable block 12 relative to the wedge-shaped fixed block 11, thereby adjusting the overall height of the wedge-shaped fixed block 11 and the wedge-shaped movable block 12.

[0036] The bottom surface of the wedge-shaped fixed block 11 has a first inclined surface, and the top surface of the wedge-shaped movable block 12 has a second inclined surface. The first inclined surface and the second inclined surface are slidably matched. The angle of the first inclined surface and the second inclined surface relative to the horizontal plane can be 10° to 20°.

[0037] The position adjustment mechanism includes two adjustment blocks 13 and two adjustment bolts 14. The two adjustment blocks 13 are mounted on the outer lower bearing seat 10 and located on either side of the wedge-shaped movable block 12. The two adjustment bolts 14 are mounted on the two adjustment blocks 13 and respectively abut against the ends of the wedge-shaped movable block 12. The axes of the two adjustment bolts 14 are parallel to the axes of the upper and lower composite rollers 1 and 8. Thus, adjusting the left and right position of the wedge-shaped movable block 12 via the two adjustment bolts 14 changes the vertical position of the wedge-shaped fixed block 11, thereby changing the spacing between the upper and lower composite rollers 8. Displacement sensors 15 at both ends provide feedback on the spacing change and relative value for monitoring and digital adjustment, further reducing the difficulty of adjustment. Pressure sensors 7 at both ends also monitor and control pressure simultaneously, achieving simultaneous regulation of pressure and spacing. Allowable variation values can be set, and out-of-tolerance alarms can be issued to prevent batch defects and prevent them from occurring.

[0038] High-precision wedge blocks are added to both ends of the upper and lower composite rollers 8. Fine-pressure adjustment bolts 14 are used to adjust the wedge movable block 12 to adjust the spacing between the upper and lower pressure rollers. The wedge block has a small wedge angle, and the fine threads of the adjustment bolts 14 allow for high-precision fine-tuning of the spacing. High-precision contact displacement sensors 15 are used at both ends to detect the real-time distance, providing a basis for adjustment. Sensor feedback data can also be used to monitor the spacing changes during use in the system to avoid abnormal spacing after long-term use. The upper composite roller drive source uses a high-precision electric cylinder 4, and a high-precision pressure sensor 7 is added to provide feedback on the pressure at both ends of the roller. It can be dynamically adjusted to ensure that the pressure during the composite process meets the set requirements. The wedge fixed block 11 and the wedge movable block 12 are made of high-strength alloy steel through heat treatment. They have high hardness and yield strength and are suitable for opening and closing compression working conditions.

[0039] The beneficial effects of the thermal composite rolling structure provided by the embodiment of the utility model include:

[0040] 1. This effectively solves the problem of the conventional roller gap and roller pressure not being able to be guaranteed simultaneously on the market. The gap fine-tuning mechanism allows for high-precision fine-tuning of the gap, enabling rapid switching for various product types with different thickness requirements. The simple and reliable structure improves the yield rate of composite products and the quality of manufactured products.

[0041] 2. Adding high-precision contact displacement sensors 15 to perform real-time detection on both sides of the pressure roller solves the problem of large deviation in the distance between the upper and lower pressure rollers during assembly and difficulty in ensuring the parallelism of the pressure rollers in the length direction. It can also monitor the distance changes in real time during working conditions and provide early warning through the program to avoid the problem of inconsistent composite thickness at both ends caused by distance changes after long-term work.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hot composite rolling structure, used for solid-state battery pole piece processing, characterized in that: The hot composite rolling structure comprises an upper composite roller (1), an inner upper bearing seat (2), an outer upper bearing seat (3), a driving mechanism, a pressure sensor (7), a lower composite roller (8), an inner lower bearing seat (9), an outer lower bearing seat (10), a gap fine-tuning mechanism, and a displacement sensor (15); The upper composite roller (1) is installed between the inner upper bearing seat (2) and the outer upper bearing seat (3), and the lower composite roller (8) is installed between the inner lower bearing seat (9) and the outer lower bearing seat (10). The upper composite roller (1) and the lower composite roller (8) are used to press the solid-state battery pole piece. The driving mechanism is connected to the inner upper bearing seat (2) and the outer upper bearing seat (3). The driving mechanism is used to adjust the pressure between the upper composite roller (1) and the lower composite roller (8). The pressure sensor (7) is used to monitor the pressure between the upper composite roller (1) and the lower composite roller (8); the gap fine-tuning mechanism is installed between the inner upper bearing seat (2) and the inner lower bearing seat (9) and between the outer upper bearing seat (3) and the outer lower bearing seat (10); the gap fine-tuning mechanism is used to adjust the gap between the upper composite roller (1) and the lower composite roller (8); and the displacement sensor (15) is used to monitor the gap between the upper composite roller (1) and the lower composite roller (8).

2. The thermal composite roll-pressed structure according to claim 1, characterized in that: The gap fine-tuning mechanism comprises a wedge-shaped fixed block (11), a wedge-shaped movable block (12) and a position adjustment mechanism. The wedge-shaped fixed block (11) is fixedly mounted on the outer upper bearing seat (3) and the inner upper bearing seat (2). The wedge-shaped movable block (12) and the position adjustment mechanism are mounted on the outer lower bearing seat (10) and the inner lower bearing seat (9). The wedge-shaped fixed block (11) and the wedge-shaped movable block (12) are slidably matched. The position adjustment mechanism is used to adjust the position of the wedge-shaped movable block (12) relative to the wedge-shaped fixed block (11), thereby adjusting the overall height of the wedge-shaped fixed block (11) and the wedge-shaped movable block (12).

3. The thermal composite roll-pressing structure according to claim 2, characterized in that: The bottom surface of the wedge-shaped fixed block (11) has a first inclined surface, and the top surface of the wedge-shaped movable block (12) has a second inclined surface, and the first inclined surface and the second inclined surface are in sliding engagement.

4. The thermal composite roll-pressing structure according to claim 2, characterized in that: The position adjustment mechanism comprises two adjustment fixing blocks (13) and two adjustment bolts (14). The two adjustment fixing blocks (13) are mounted on the outer lower bearing seat (10) and are located on both sides of the wedge-shaped movable block (12). The two adjustment bolts (14) are respectively mounted on the two adjustment fixing blocks (13) and respectively abut against both ends of the wedge-shaped movable block (12).

5. The thermal composite roll-pressing structure according to claim 4, characterized in that: The axes of the two adjusting bolts (14) are parallel to the axes of the upper composite roller (1) and the lower composite roller (8).

6. The thermal composite roll-pressed structure according to claim 1, characterized in that: The driving mechanism comprises an electric cylinder (4) and a connecting piece (5), and the inner upper bearing seat (2) and the outer upper bearing seat (3) are both connected to the electric cylinder (4) via the connecting piece (5).

7. The thermal composite roll-pressed structure according to claim 6, characterized in that: The driving mechanism further comprises a linear guide rail (6), wherein the linear guide rail (6) is perpendicular to the axis of the upper composite roller (1) and the lower composite roller (8), and the inner upper bearing seat (2) and the outer upper bearing seat (3) are both slidably mounted on the linear guide rail (6).

8. The thermal composite roll-pressed structure according to claim 1, characterized in that: The hot composite rolling structure further comprises a reducer base (16), a reducer (17) and a motor (18); the upper composite roller (1) and the lower composite roller (8) are both connected to the motor (18) via the reducer (17); and the reducer (17) is mounted on the reducer base (16).

9. The thermal composite roll-pressed structure according to claim 6, characterized in that: The pressure sensor (7) is installed between the connecting member (5) and the inner upper bearing seat (2) and between the connecting member (5) and the outer upper bearing seat (3).

10. The thermal composite roll-pressed structure according to claim 1, characterized in that: The displacement sensor (15) is mounted on both the inner lower bearing seat (9) and the outer lower bearing seat (10).

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