Rolling roller protection device
By designing a roll-press roller protection device, the vertical movement of the hinge support detects the thickness of the pole sheet, combined with the sensor and control system, the problem of online detection of raw material thickness and trace metal residues in the prior art is solved, avoiding roll damage and improving production efficiency.
Patent Information
- Application Number
- CN202421967112.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-14
AI Technical Summary
Existing roller pressing equipment cannot detect the thickness of raw materials and trace metal residues online when pressing materials, resulting in inconsistent thickness after rolling, which will damage the rollers in severe cases, increasing production costs and maintenance frequency.
A roll-press roller protection device is designed, including a support frame, column, guide roller and hinge support. The vertical movement of the hinge support detects the thickness of the pole sheet, and the sensor connection control system emits an alarm or shutdown to avoid damage to the roll.
The thickness of the pole sheet is detected online, early warning or shutdown is achieved, which avoids roll damage, improves production efficiency and reduces production costs.
Smart Images
Figure CN222919322U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling, in particular to a rolling roll protection device. Background Art
[0002] With the development of society, electronic products, power tools, etc. are more and more widely used. In terms of safety and product consistency, the market has higher and higher requirements for the battery performance of electronic products. Therefore, improving quality and safety is particularly important in the product production process. In the battery production process, rolling is an important process for the electrode sheet, and it has very high requirements for the consistency of the incoming material thickness. The consistency of the incoming material and the finished product thickness determines the consistency of the battery core.
[0003] When the existing rolling equipment presses materials, it is unable to perform on-line detection of the thickness and trace metal residues of the raw materials before rolling. When the thickness of the incoming material is abnormal, it may lead to poor thickness consistency after rolling and serious surface defects. Once the rolling thickness is abnormal, it is necessary to stop the machine to analyze the reasons, detect the thickness difference of the incoming material, verify the influence analysis of the rolling equipment parameters, etc., which will consume manpower and time, reduce production efficiency, and increase production costs; if the incoming material has large particle appearance defects or foreign objects, after passing through the roll slit, the roll surface will be damaged by foreign objects such as metal residues, resulting in pits on the roll surface. The thickness of the electrode sheet at the pit of the rolled electrode sheet is inconsistent, affecting the thickness and electrochemical performance of the battery core. The equipment needs to be frequently maintained and the rolls need to be replaced, increasing production costs and the frequency of equipment maintenance. Summary of the Utility Model
[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is: how to provide a rolling roll protection device with a simple structure, cost saving, and avoiding damage to the rolls during the rolling process.
[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:
[0006] A rolling roll protection device, characterized in that it includes a support frame arranged before the rolling process. There are two vertically arranged columns on the support frame. A lower guide roll is rotatably arranged between the two columns. An upper guide roll is arranged parallel above the lower guide roll. The two ends of the upper guide roll are installed on the support frame through hinge supports that can move freely vertically. The minimum gap between the upper guide roll and the lower guide roll is less than the thickness of the electrode sheet. A sensor for detecting the vertical movement distance of the hinge support is arranged on the support frame, and the sensor is connected to a control system for sending out an alarm and / or controlling the stop of the machine.
[0007] During use, the electrode plate passes through between the upper guide roller and the lower guide roller. Since the height of the lower guide roller remains unchanged and the hinge supports at both ends of the upper guide roller can move up and down freely, once the thickness of the electrode plate changes, the upper guide roller and the hinge supports will move up and down, and the sensor can detect the up and down movement distance of the hinge supports. Once the movement distance exceeds the range, an alarm or shutdown can be issued by the control system.
[0008] Further, the resolution of the sensor is less than 1 micron.
[0009] Further, a cross beam is supported at the upper ends of the two columns. The hinge support has at least two vertically penetrating bolt holes and is hoisted below the cross beam through guiding bolts. The length of the guiding bolts is greater than the length of the bolt holes, so that the hinge support can move up and down along the guiding bolts.
[0010] Further, a helical spring is sleeved on the guiding bolt. The helical spring is located below the hinge support and is compressed between the hinge support and the nut of the guiding bolt, so that the upper guide roller is in contact with the lower guide roller.
[0011] In this way, through the bolt spring, the weight of the upper guide roller can be shared by the guiding bolt and the cross beam, reducing the pressure exerted by the upper guide roller on the lower guide roller, so that the electrode plate between the two can more easily push the upper guide roller upward, improving the sensitivity of detection.
[0012] Further, the maximum elastic force provided by the helical spring matches the sum of the gravity of the upper guide roller and the hinge support, so that the upper guide roller and the lower guide roller are in a zero-pressure contact state.
[0013] In this way, the pressure exerted on the electrode plate when passing through the upper guide roller and the lower guide roller is determined by the thickness of the electrode plate and the elastic coefficient of the helical spring. Since the thickness of the electrode plate is small, the pressure on the electrode plate is also very small, enabling the electrode plate to easily push the upper guide roller to move under a very small thickness change, improving the sensitivity of detection.
[0014] Further, a telescopic mechanism is vertically arranged on the column, and both ends of the cross beam are respectively connected to the movable ends of the telescopic mechanism.
[0015] In this way, the movable end of the telescopic mechanism can be moved upward to increase the distance between the upper guide roller and the lower guide roller, facilitating threading and guiding the tape.
[0016] Further, the telescopic mechanism is a cylinder vertically arranged upward.
[0017] Further, the sensor is installed on the cross beam and vertically faces downward and is directly opposite to the hinge support.
[0018] Further, the sensor is a digital contact sensor, and the contact end of the digital contact sensor abuts against the upper surface of the hinge support.
[0019] Further, a relief hole is provided on the cross beam opposite to the hinge support, and the sensor is mounted on the cross beam through a bracket and passes downward through the relief hole.
[0020] In summary, the utility model has the advantages of simple structure, cost saving, and avoiding damage to the rolling roll during the rolling process. Description of the Drawings
[0021] Figure 1 It is a front view structural schematic diagram of the rolling roll protection device.
[0022] Figure 2 It is an overall structural schematic diagram of the rolling roll protection device.
[0023] Figure 3 It is a partial structural schematic diagram of the rolling roll protection device.
[0024] Figure 4 It is a schematic diagram of the use state of the rolling roll protection device. Detailed Description of the Preferred Embodiments
[0025] The present utility model will be further described in detail below with reference to the embodiments.
[0026] During specific implementation: As Figures 1 to 4 shown, a rolling roll protection device includes a support frame 1 provided before the rolling roll process. Two vertically arranged columns 11 are provided on the support frame 1. A lower guide roll 2 is rotatably arranged between the two columns 11. An upper guide roll 3 is arranged in parallel above the lower guide roll 2. Both ends of the upper guide roll 3 are mounted on the support frame 1 through hinge supports 4 that can move freely vertically. The minimum gap between the upper guide roll 3 and the lower guide roll 2 is smaller than the thickness of the pole piece. A sensor 5 for detecting the vertical movement distance of the hinge support 4 is arranged on the support frame 1, and the sensor 5 is connected to a control system for issuing an alarm and / or controlling the shutdown. In this embodiment, the sensor 5 is a digital contact sensor with a resolution less than 1 micron. The contact end of the digital contact sensor abuts against the upper surface of the hinge support 4.
[0027] Specifically, the upper ends of the two columns 11 support a cross beam 12. The hinge support 4 has at least two vertically penetrating bolt holes and is hoisted below the cross beam 12 through guide bolts 41. The length of the guide bolts 41 is greater than the length of the bolt holes, enabling the hinge support 4 to move up and down along the guide bolts 41. To enable the upper guide roller to more flexibly respond to changes in the thickness of the pole piece, a helical spring 42 is sleeved on the guide bolts 41. The helical spring 42 is located below the hinge support 4 and is compressed between the hinge support 4 and the nut of the guide bolt 41, causing the upper guide roller 3 to contact the lower guide roller 2. In this way, the weight of the upper guide roller can be shared by the guide bolts and the cross beam through the bolt spring, reducing the pressure exerted by the upper guide roller on the lower guide roller, so that the pole piece between the two can more easily push the upper guide roller upward, improving the sensitivity of detection. The maximum elastic force provided by the helical spring 42 matches the sum of the gravity of the upper guide roller 3 and the hinge support 4, enabling the upper guide roller 3 and the lower guide roller 2 to be in a zero-pressure contact state. In this way, the pressure exerted on the pole piece when passing through the upper and lower guide rollers is determined by the thickness of the pole piece and the elastic coefficient of the helical spring. Since the thickness of the pole piece is small, the pressure on the pole piece is also very small, allowing the pole piece to easily push the upper guide roller to move under extremely small thickness changes, improving the sensitivity of detection.
[0028] To facilitate threading and guiding of the pole piece, a telescopic mechanism 13 is vertically provided on the column 11. The two ends of the cross beam 12 are respectively connected to the movable ends of the telescopic mechanism 13. The telescopic mechanism 13 is a vertically upwardly arranged cylinder. The movable end of the telescopic mechanism can be moved upward to increase the distance between the upper guide roller and the lower guide roller, facilitating threading and guiding.
[0029] The sensor 5 is installed on the cross beam 12 and faces the hinge support 4 vertically downward. Specifically, the cross beam 12 has a relief hole facing the hinge support 4. The sensor 5 is installed on the cross beam 12 through a bracket and passes downward through the relief hole.
[0030] During use, the pole piece passes between the upper and lower guide rollers. Since the height of the lower guide roller remains unchanged and the hinge supports at both ends of the upper guide roller can move freely up and down, once the thickness of the pole piece changes, the upper guide roller and the hinge support will move up and down, and the sensor can detect the up and down movement distance of the hinge support. Once the movement distance exceeds the range, an alarm or shutdown can be issued by the control system to ensure in advance that abnormally supplied pole pieces do not enter the rolling process, thereby avoiding damage to the rolling mill during the rolling process.
[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A rolling roller protection device, characterized in that: The invention comprises a support frame (1) arranged before a rolling process, wherein the support frame (1) has two vertically arranged columns (11), and a lower guide roller (2) is rotatably arranged between the two columns (11); an upper guide roller (3) is arranged above the lower guide roller (2) in parallel, and both ends of the upper guide roller (3) are mounted on the support frame (1) via hinged supports (4) that can freely move vertically, and the minimum gap between the upper guide roller (3) and the lower guide roller (2) is less than the thickness of the pole piece; and a sensor (5) for detecting the vertical movement distance of the hinged support (4) is arranged on the support frame (1), and the sensor (5) is connected to a control system for issuing an alarm and / or controlling shutdown.
2. The rolling roller protection device according to claim 1, characterized in that: The resolution of the sensor (5) is less than 1 micron.
3. The rolling roller protection device according to claim 1, characterized in that: The upper ends of the two uprights (11) support a crossbeam (12), the hinge support (4) has at least two bolt holes vertically penetrating therethrough, and is suspended below the crossbeam (12) via a guide bolt (41), the length of the guide bolt (41) being greater than the length of the bolt hole, so that the hinge support (4) can move up and down along the guide bolt (41).
4. The rolling roller protection device according to claim 3, characterized in that: A coil spring (42) is sleeved on the guide bolt (41). The coil spring (42) is located below the hinge support (4) and is compressed between the hinge support (4) and the nut of the guide bolt (41), so that the upper guide roller (3) is in contact with the lower guide roller (2).
5. The rolling roller protection device according to claim 4, characterized in that: The maximum elastic force provided by the coil spring (42) matches the sum of the gravity of the upper guide roller (3) and the hinge support (4), so that the upper guide roller (3) and the lower guide roller (2) are in a zero-pressure contact state.
6. The rolling roller protection device according to claim 3, characterized in that: The upright column (11) is provided with a telescopic mechanism (13) arranged vertically, and the two ends of the crossbeam (12) are respectively connected to the movable ends of the telescopic mechanism (13).
7. The rolling roller protection device according to claim 6, characterized in that: The telescopic mechanism (13) is a cylinder arranged vertically upward.
8. The rolling roller protection device according to claim 3, characterized in that: The sensor (5) is mounted on the crossbeam (12) and faces the hinge support (4) vertically downward.
9. The rolling roller protection device according to claim 8, characterized in that: The sensor (5) is a digital contact sensor, and the contact end of the digital contact sensor abuts against the upper surface of the hinge support (4).
10. The rolling roller protection device according to claim 9, characterized in that: The crossbeam (12) has a clearance hole arranged opposite to the hinge support (4); the sensor (5) is mounted on the crossbeam (12) via a bracket and passes through the clearance hole downward.