Roller press
By introducing distance detection components and driving parts into the roller press, the distance between upper and lower pressing rollers is monitored and adjusted in real time, the problem of spacing deviation after long-term use is solved, and product quality and working efficiency are improved.
Patent Information
- Application Number
- CN202421944831.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-08-12
AI Technical Summary
After long-term use of existing roller presses, the spacing between the upper and lower pressing rollers is prone to deviation, affecting product quality.
The distance detection component is used to monitor the spacing between the upper and lower pressing rollers in real time, and drive the movement of the distance adjusting member through the drive member to ensure that the spacing is adjusted under no force and reduce wear.
Accurate adjustment of the spacing between the upper and lower pressing rollers is achieved, reducing wear and improving product quality and working efficiency.
Smart Images
Figure CN223197745U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of lithium battery roller pressing, and specifically relates to a roller press. Background Art
[0002] Due to the need for long battery life, the capacity of lithium batteries has always been a concern. Related technologies typically use the method of controlling the electrode compaction density to regulate battery capacity. Generally, within the material's allowable compaction range, the higher the electrode compaction density, the higher the battery capacity. However, when the electrode compaction density is too high, the battery's specific capacity and cycle performance are affected. Therefore, precise control of the electrode compaction density is necessary.
[0003] Related technologies usually use a roller press to control the thickness of the battery electrode to regulate the compaction density of the battery electrode. For example, a roller press includes an upper roller, a lower roller and a wedge block for adjusting the distance between the upper and lower rollers. The wedge block is set between the roller shafts of the upper and lower rollers. When rolling electrodes of different thicknesses, the staff needs to push the wedge block. The wedge block pushes the upper and lower rollers to slide, so that the length of the wedge block on the connecting line of the rotating shafts of the two rollers changes, and the distance between the rollers can be changed conveniently and quickly.
[0004] To facilitate control during operation, the spacing is typically adjusted by adjusting the travel distance of the wedge blocks. However, during the rolling process, the reaction force of the pole piece on the rollers, the weight of the rollers, and other forces are transmitted to the wedge blocks through the roller shafts, causing stress in the wedge blocks. This wears the wedge blocks during the control and movement process. After long-term use, the distance between the upper and lower rollers deviates from the set distance, affecting product quality.
[0005] In view of this, this application is filed. Utility Model Content
[0006] In order to reduce the occurrence of distance deviation and improve product quality, the present application provides a roller press.
[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted in this application is:
[0008] A roller press comprises an upper pressing roller, a lower pressing roller slidingly arranged relative to the upper pressing roller, a distance adjusting member for adjusting the distance between the upper pressing roller and the lower pressing roller, and a distance detection component for detecting the length of the distance adjusting member located on the roller shaft connecting the upper pressing roller and the lower pressing roller. The distance adjusting member is movably arranged, and during the movement of the distance adjusting member, the length of the distance adjusting member located on the roller shaft connecting the upper pressing roller and the lower pressing roller changes. The distance adjusting member is movably arranged between the upper pressing roller and the lower pressing roller.
[0009] Preferably, during the length change process of the distance adjusting member located on the connecting line of the upper and lower pressure rollers, the forces between the distance adjusting member and the upper and lower pressure rollers are both 0, and during the sliding process of the lower pressure roller relative to the upper pressure roller, the upper pressure roller, the distance adjusting member and the lower pressure roller are pressed or separated.
[0010] Preferably, the upper pressure roller shaft rotating sleeve is provided with an upper limit block, and the lower pressure roller shaft rotating sleeve is provided with a lower limit block. The upper pressure roller is pressed against the distance adjusting member through the upper limit block, and the lower pressure roller is pressed against the distance adjusting member through the lower limit block.
[0011] Preferably, the upper pressing roller and / or the lower pressing roller are connected to the first driving member and move under the action of the first driving member.
[0012] Preferably, the distance detection component includes a first distance measuring sensor, a second distance measuring sensor and a third distance measuring sensor; the first distance measuring sensor is used to detect the distance between the upper pressure roller and the lower pressure roller; the second distance measuring sensor is used to detect the distance between the upper pressure roller and the lower pressure roller shaft and the distance adjusting member along the direction of the connecting line between the upper pressure roller and the lower pressure roller shaft; the third distance measuring sensor is used to detect the distance between the lower pressure roller and the distance adjusting member along the direction of the connecting line between the upper pressure roller and the lower pressure roller shaft.
[0013] Preferably, the first ranging sensor, the second ranging sensor and the third ranging sensor all include correspondingly arranged signal transmitting components and signal processing components, the signal transmitting components are used to transmit and receive signals, and the signal processing components are used to reflect signals.
[0014] Preferably, it includes a frame, the upper pressure roller and the lower pressure roller are both rotatably set on the frame, and a second driving member is set on the side wall of the frame for sliding in the vertical direction. The driving end of the second driving member is connected to the distance adjusting member. When the distance adjusting member moves under the action of the driving member, the length of the distance adjusting member on the connecting line of the roller shafts of the upper pressure roller and the lower pressure roller changes.
[0015] Preferably, a second sliding hole is opened on the side wall of the frame, an I-shaped plate is slidably arranged in the sliding hole, and the driving end of the second driving member passes through the I-shaped plate and is connected to the distance adjusting member.
[0016] Preferably, the frame is arranged in a frame shape, and the upper pressing roller and the lower pressing roller are arranged in the frame-shaped frame.
[0017] Preferably, a hollow cavity is provided in the frame and the side wall connected to the upper pressure roller and / or the lower pressure roller, and the upper limit block, the lower limit block and the distance adjustment member are all provided in the hollow cavity.
[0018] After adopting the above technical solution, the present application has the following beneficial effects compared with the prior art.
[0019] By setting up a distance detection component that can detect the length of the distance adjusting part on the connection line between the upper and lower pressure rollers, the staff can accurately obtain the distance between the upper and lower pressure rollers in real time, thereby effectively improving the adverse effects caused by the distance deviation between the upper and lower pressure rollers; further, during the movement of the distance adjusting part, by making the force exerted by the upper and lower pressure rollers on the distance adjusting part 0, the resistance acting on the distance adjusting part is effectively reduced, thereby improving the wear of the distance adjusting part and further reducing the probability of distance deviation. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;
[0021] Figure 2 This is a schematic diagram of an embodiment of the present application for protruding a hollow cavity;
[0022] Figure 3 This is a schematic diagram of a protruding distance adjustment member in an embodiment of the present application;
[0023] Figure 4 yes Figure 3 Enlarged view of part A in the middle.
[0024] In the figure: 1. frame; 2. upper pressure roller; 3. lower pressure roller; 4. motor; 5. first sliding hole; 6. upper limit block; 7. lower limit block; 8. first driving member; 9. distance adjustment member; 10. second sliding hole; 11. I-shaped plate; 12. distance detection component; 13. first distance measuring sensor; 14. second distance measuring sensor; 15. third distance measuring sensor; 16. hollow cavity. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not used to limit the scope of the present application.
[0026] In the description of this application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting this application.
[0027] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0028] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings.
[0029] A roller press, referring to Figure 1-Figure 3 , including a frame 1 arranged in a frame shape, in which an upper pressure roller 2 and a lower pressure roller 3 are arranged side by side in the vertical direction, wherein the roller shaft of the upper pressure roller 2 passes through the side wall of the frame 1 and is connected to the output end of the motor 4, and rotates under the action of the motor 4. A hollow cavity 16 is provided inside the side wall where the frame 1 and the roller shaft of the upper pressure roller 2 intersect, and the motor 4 is arranged in the hollow cavity 16. The frame 1 is provided with a first sliding hole 5 directly below the roller shaft of the upper pressure roller 2. The first sliding hole 5 is arranged vertically, and the roller shaft of the lower pressure roller 3 passes through the first sliding hole 5 and extends into the hollow cavity 16, and is slidable in the vertical direction. When rolling different pole pieces, the staff can adjust the position of the lower pressure roller 3 by sliding to adjust the distance between the two rollers.
[0030] Reference Figure 2 and Figure 3 The upper roller 2 extending out of the frame 1 is also provided with an upper limit block 6 on its roller shaft. The upper limit block 6 is provided in the hollow cavity 16. The upper limit block 6 is connected to the inner wall of the hollow cavity 16 of the frame 1. The upper limit block 6 is provided with an inclined surface on the side facing the lower roller 3. The lower roller 3 extending out of the frame 1 is provided with a lower limit block 7 on its roller shaft. The upper limit block 6 and the lower limit block 7 are provided flush with the surface of the side away from the frame 1. The lower limit block 7 is connected to the first drive member 8 and moves under the action of the first drive member 8. In the embodiment of the present application, the first drive member 8 is a hydraulic press. A distance adjustment member 9 is provided between the upper limit block 6 and the lower limit block 7. In the embodiment of the present application, the distance adjustment member 9 is a wedge-shaped block. The wedge block is provided with an inclined surface on the side facing the upper limit block 6, and the inclination angle is the same as the inclination angle of the upper limit block 6.
[0031] Reference Figure 2-Figure 4A second sliding hole 10 is provided on the side wall of the hollow cavity 16. The side wall where the second sliding hole 10 is located is adjacent to the side wall where the first sliding hole 5 is located. The second sliding hole 10 is arranged in a vertical strip shape, and an I-shaped plate 11 is provided in the second sliding hole 10 for sliding in the vertical direction. A second driving member is provided on the side of the I-shaped plate 11 facing the outer wall of the frame 1. In the embodiment of the present application, the second driving member is a motor 4. The motor 4 can slide along the second sliding hole 10 together with the I-shaped plate 11. The driving end of the motor 4 passes through the I-shaped plate 11 and is connected to the wedge block, driving the wedge block to slide in the horizontal direction.
[0032] When adjusting the roller spacing, the operator first needs to control the first drive member 8 to cause the lower limit block 7 to drive the lower pressure roller 3 to slide. After the lower limit block 7 separates from the wedge block, the force acting on the wedge block disappears. Then, the motor 4 is used to drive the wedge block to slide horizontally. After sliding to the target position, the first drive member 8 is again operated to control the lower limit block 7 to move upward, pushing the wedge block upward and pressing it against the upper limit block 6, ensuring the limiting effect. This method prevents the wedge block from being affected by forces such as friction during its sliding process, effectively improving the wear of the wedge block.
[0033] In the embodiment of the present application, the upper pressing roller 2 is fixed in position and the lower pressing roller 3 is movable in position. In other embodiments, the lower pressing roller 3 may be fixed and the upper pressing roller 2 may be movable under the action of the first driving member 8, or both the upper pressing roller 2 and the lower pressing roller 3 may be movable, depending on the actual situation.
[0034] In order to further improve the influence of the worn wedge block on the rolling accuracy, refer to Figure 3 and Figure 4 The side wall of the upper limit block 6 is provided with a distance detection component 12, which includes a first distance measuring sensor 13, a second distance measuring sensor 14, and a third distance measuring sensor 15. The first distance measuring sensor 13, the second distance measuring sensor 14, and the third distance measuring sensor 15 each include a signal transmitter and a signal processing component that are paired with each other. In the embodiment of the present application, the signal processing component is a reflective layer that is provided on the surface of the part or the raised surface of the part. The signal emitted by the signal transmitter is reflected by the signal processing component back to the position of the signal transmitter. After receiving the signal, the signal transmitter calculates the distance between the signal transmitter and the signal processing component.
[0035] Reference Figure 4The signal transmitter of the first distance sensor 13 is located on the sidewall of the upper limit block 6 facing away from the frame 1. The signal processor of the first distance sensor 13 is located on the surface of the lower limit block 7 facing away from the frame 1, which protrudes toward the upper limit block 6. The signal transmitter and signal processor of the first distance sensor 13 are always on the same vertical line. The second distance sensor 14 is embedded in the surface of the upper limit block 6 facing the wedge block. The signal transmitters of the first and second distance sensors 13 and 14 are located at the same height. The signal processor of the second distance sensor 14 is located in a planar shape on the surface of the wedge block facing the upper limit block 6. The signal transmitter of the third distance sensor 15 is embedded in the surface of the lower limit block 7 facing the wedge block. The signal transmitter of the third distance sensor 15 is located at the same height as the signal processor of the first distance sensor 13. Furthermore, the signal transmitters of the first, second, and third distance sensors 13, 14, and 15 are all located on the plane defined by the roller axes of the upper pressure roller 2 and the lower pressure roller 3.
[0036] The first distance measuring sensor 13, the second distance measuring sensor 14 and the third distance measuring sensor 15 are all electrically connected to the controller, and the controller calculates and converts the output to the length of the distance adjusting member 9 on the roller axis connecting line of the upper pressure roller 2 and the lower pressure roller 3, and calculates the distance between the upper pressure roller 2 and the lower pressure roller 3 after pressing, which is convenient and quick.
[0037] Through the distance detection component 12, the staff can accurately obtain the length of the distance adjustment member 9 located on the roller shaft connection line between the upper pressure roller 2 and the lower pressure roller 3 in real time, and assist in determining the target position of the wedge block by calculating and comparing the distance after pressing with the preset distance, which effectively reduces the adjustment time and improves work efficiency.
[0038] The above description is merely a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments with equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present application. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the solution of the present application.
Claims
1. A roller press, characterized in that: The invention comprises an upper pressing roller (2), a lower pressing roller (3) slidingly arranged relative to the upper pressing roller (2), a distance adjusting member (9) for adjusting the distance between the upper pressing roller (2) and the lower pressing roller (3), and a distance detecting assembly (12) for detecting the length of the distance adjusting member (9) located on the roller axis connecting line between the upper pressing roller (2) and the lower pressing roller (3); the distance adjusting member (9) is movably arranged, and during the movement of the distance adjusting member (9), the length of the distance adjusting member (9) located on the roller axis connecting line between the upper pressing roller (2) and the lower pressing roller (3) changes; the distance adjusting member (9) is movably arranged between the upper pressing roller (2) and the lower pressing roller (3).
2. The roller press according to claim 1, characterized in that During the process of length change of the distance adjusting member (9), the acting forces between the distance adjusting member (9) and the upper pressing roller (2) and the lower pressing roller (3) are all zero, and during the process of the lower pressing roller (3) sliding relative to the upper pressing roller (2), the upper pressing roller (2), the distance adjusting member (9) and the lower pressing roller (3) are pressed against or separated.
3. The roller press according to claim 2, characterized in that The upper pressure roller (2) is provided with an upper limit block (6) on the roller shaft rotating sleeve, and the lower pressure roller (3) is provided with a lower limit block (7) on the roller shaft rotating sleeve. The upper pressure roller (2) is pressed against the distance adjustment member (9) via the upper limit block (6), and the lower pressure roller (3) is pressed against the distance adjustment member (9) via the lower limit block (7).
4. The roller press according to claim 3, characterized in that The upper pressing roller (2) and / or the lower pressing roller (3) are connected to the first driving member (8) and move under the action of the first driving member (8).
5. The roller press according to claim 3, characterized in that The distance detection component (12) comprises a first distance measuring sensor (13), a second distance measuring sensor (14) and a third distance measuring sensor (15); the first distance measuring sensor (13) is arranged on the upper limit block (6) and the lower limit block (7) for detecting the distance between the upper pressure roller (2) and the lower pressure roller (3); the second distance measuring sensor (14) is arranged on the distance adjusting member (9) for detecting the distance between the roller axis of the upper pressure roller (2) and the distance adjusting member (9) along the direction of the connecting line between the roller axes of the upper pressure roller (2) and the lower pressure roller (3); the third distance measuring sensor (15) is arranged on the lower limit block (7) for detecting the distance between the roller axis of the lower pressure roller (3) and the distance adjusting member (9) along the direction of the connecting line between the roller axes of the upper pressure roller (2) and the lower pressure roller (3).
6. The roller press according to claim 5, characterized in that The first distance measuring sensor (13), the second distance measuring sensor (14) and the third distance measuring sensor (15) all include correspondingly arranged signal transmitting components and signal processing components, wherein the signal transmitting components are used to transmit and receive signals, and the signal processing components are used to reflect signals.
7. The roller press according to claim 5, characterized in that The invention comprises a frame (1), wherein the upper pressing roller (2) and the lower pressing roller (3) are both rotatably arranged on the frame (1), and a second driving member is provided on the side wall of the frame (1) so as to slide in the vertical direction. The driving end of the second driving member is connected to the distance adjusting member (9), and when the distance adjusting member (9) moves under the action of the driving member, the length of the distance adjusting member (9) on the roller axis connecting line of the upper pressing roller (2) and the lower pressing roller (3) changes.
8. The roller press according to claim 7, characterized in that A second sliding hole (10) is provided on the side wall of the frame (1), an I-shaped plate (11) is slidingly arranged in the second sliding hole (10), and a driving end of the second driving member passes through the I-shaped plate (11) and is connected to the distance adjusting member (9).
9. The roller press according to claim 7, characterized in that The frame (1) is arranged in a frame shape, and the upper pressing roller (2) and the lower pressing roller (3) are arranged in the frame-shaped frame (1).
10. The roller press according to claim 9, characterized in that A hollow cavity (16) is provided in the frame (1) and the side wall connected to the upper pressure roller (2) and / or the lower pressure roller (3); the upper limit block (6), the lower limit block (7), and the distance adjustment member (9) are all provided in the hollow cavity (16).