Roll gap measuring device
By installing laser detection components and calibrating bending cylinders on the roll forming equipment, the deformation of the main roll edge can be directly measured, solving the problems of limited roll gap measurement range and inaccurate accuracy, and realizing high-precision roll gap control.
Patent Information
- Application Number
- CN202520175826.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In existing technologies, the roll gap measurement range is limited and the measurement accuracy is inaccurate, especially during the rolling process where there are cumulative errors and hysteresis.
Laser detectors are installed on strips on both sides of the main roll, with laser devices distributed axially. The deformation of the main roll edge is directly measured to determine the roll gap. Combined with the use of calibration bending cylinder and main cylinder, direct measurement and precise control of the roll gap can be achieved.
This improved the range and accuracy of roll gap measurement, reduced errors, and ensured high-precision control of the cell electrode thickness during the rolling process.
Smart Images
Figure CN223741514U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to roll gap measurement technical field, especially a kind of roll gap measuring device. BACKGROUND
[0002] The production of power lithium battery, rolling process is a key process procedure concerning battery quality;The quality of such equipment production, for example, the thickness of roll pressing is required higher, so roll gap measurement is particularly important, so the accuracy and timeliness should be improved in roll gap measurement process.
[0003] At present, the thickness of pole piece needs to be controlled in the process of rolling in battery production equipment, and the existing roll gap measurement needs to ensure that the pole piece is at the required thickness, the pressure sensing module is installed on the two sides of the roller, and the actual rolling pressure of the product surface is obtained by the displacement of the pressure sensing module and the main cylinder, when the thickness of the product changes, the roll gap changes accordingly, so as to realize the measurement of roll gap.
[0004] But in the above scheme, the pressure sensing module measures the roll gap at the two ends of the roller, the measurement range of this scheme is limited, and only the end of the roller can be measured, and the size of the roll gap is indirectly obtained by using pressure and displacement, the assembly gap of the pressure sensing module has a great influence on the accuracy of the roll gap, and there will be cumulative error and hysteresis, so as to increase the error of detection, and cause the problem of inaccurate detection.
[0005] Therefore, the present application solves the problem that the measurement range of roll gap is limited and the measurement accuracy of roll gap is not accurate. UTILITY MODEL CONTENTS
[0006] The main purpose of the utility model is to provide a kind of roll gap measuring device, to improve the measurement range of roll gap, and also to ensure the accuracy of roll gap measurement.
[0007] In order to achieve the above purpose, the utility model provides a kind of roll gap measuring device, including frame and a pair of main rollers rotatingly connected on the frame, further comprising:
[0008] Laser detection part, installed on the frame, to detect the roll gap of a pair of main rollers, comprising:
[0009] Mounting strip, connected to the frame;And
[0010] A plurality of laser devices are connected to the mounting strip along the main roller axis;
[0011] Wherein, the laser of the laser device irradiates the side edge of the main roller, and detects the working surface gap between the mounting strip and the main roller.
[0012] In the above scheme, a pair of main rollers rotates on the rack, and the electrode sheet of the battery cell passes through the roller gap between the main rollers, so that the electrode sheet of the battery cell is rolled to the required thickness. With the use of the main rollers, the main rollers are deformed due to the pressure; the mounting strip can be an integrally formed frame body, which is distributed on the feeding side or the discharging side of the electrode sheet of the battery cell, and can carry the laser devices on the two main rollers respectively; the laser devices irradiate the edges of the main rollers, and are used for measuring the deformation of the edges of the main rollers.
[0013] Further, the laser devices include a laser sensor A and a laser sensor B, the laser sensor A and the laser sensor B are distributed on both sides of the main roller, and the laser sensor B receives the laser emitted by the laser sensor A. Wherein, the laser sensor B receives part of the laser, and the deformation amount of the side edge of the main roller can be judged. Since the laser devices are distributed along the axis direction of the main roller, the deformation of different positions of the main roller can be measured.
[0014] Further, the mounting strip includes a first mounting strip and a second mounting strip, and the first mounting strip and the second mounting strip are respectively arranged on one side of the pair of main rollers away from each other along the height direction of the rack. Wherein, the first mounting strip is provided with the laser sensor A and the laser sensor B, and the laser sensor A emits laser towards the laser sensor B, so that the deformation of the upper side of the main roller edge can be measured. Similarly, the second mounting strip is provided with the laser sensor A and the laser sensor B, so that the deformation of the lower side of the main roller edge can be measured.
[0015] Further, the first mounting strip and the second mounting strip are both provided with a standard block, and the laser sensor A and the laser sensor B are both mounted on the standard block. Wherein, the standard block can move along the vertical direction of the rack, so as to adjust the contact area between the laser between the laser sensor A and the laser sensor B and the outer edge of the main roller, so as to adapt to main rollers of different sizes.
[0016] Further, the first mounting strip and the second mounting strip are both provided with a straight slot, and the end of the standard block is clamped and fixed along the straight slot.
[0017] Further, the standard block is also provided with a mounting plate for assembling the laser sensor A or the laser sensor B.
[0018] Further, the two ends of the main roller are both provided with a bearing seat, and the two sides of the rack are both provided with a calibration bending cylinder, and the output shaft of the calibration bending cylinder is connected with the bearing seat. Wherein, the bearing seat is divided into an outer bearing seat and an inner bearing seat, the two side walls of the rack are both provided with a bending cylinder mounting seat, and the calibration bending cylinder is mounted between the bending cylinder mounting seat and the outer bearing seat. The calibration bending cylinder can timely adjust and correct the roller gap of the two main rollers, so as to ensure that the thickness deviation of the electrode sheet of the battery cell has higher precision; after the calibration bending cylinder and the electrode sheet of the battery cell are rolled, the thickness of the electrode sheet of the battery cell can be closed loop controlled.
[0019] Further, the main cylinder is arranged on the frame, the main cylinder drives one of the main rollers to ascend and descend along the height direction of the frame, so that the pair of main rollers are close or far away from each other.
[0020] Further, the frame is provided with an assembling plate on one side, and the assembling plate is provided with a motor for driving the main rollers to rotate.
[0021] Further, the number of the motor corresponds to the number of the main rollers, and a shaft coupling is arranged between the output shaft of the motor and the end of the main roller.
[0022] The above technical scheme has the following advantages:
[0023] The laser device is arranged on both sides of the main roller, the laser device irradiates the edge of the main roller, and the deformation of the edge of the main roller is obtained, so that the roll gap between the pair of main rollers is judged, the roll gap between the main rollers is directly measured, a plurality of laser devices can be arranged on the installation strip, the measurement range of the roll gap is limited, and the accuracy of the measurement of the roll gap is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0024] The utility model will be explained in detail below in combination with specific embodiments and drawings, in which:
[0025] Figure 1 It is the left main body structure schematic diagram of the utility model;
[0026] Figure 2 It is the right main body structure schematic diagram of the utility model;
[0027] Figure 3 It is the lateral schematic diagram of the utility model;
[0028] Figure 4 It is the main direction schematic diagram of the utility model;
[0029] Figure 5 It is the structure diagram of the standard block, the upper installation strip and the installation plate of the utility model;
[0030] Figure 6 It is the main roller roll pressing process change schematic diagram of the utility model.
[0031] In the figure: 001, rack; 002, calibration bending cylinder; 003, main cylinder; 004, bending cylinder mounting seat; 005, outer bearing seat; 006, inner bearing seat; 007, main roller; 008, motor; 009, assembly plate; 010, support frame; 011, shaft coupling; 012, standard block; 013, first mounting strip; 014, second mounting strip; 015, laser sensor A; 016, laser sensor B; 017, battery pole piece; 018, mounting plate. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will make a detailed description of the utility model in combination with the drawings and examples. It should be understood that the following specific examples are only used to explain the utility model and do not constitute limitation to the utility model.
[0033] As Figures 1 to 3 shown, a roller gap measuring device, comprising a rack 001 and a pair of main rollers 007 rotating on the rack 001, and further comprising a laser detection member corresponding to the main rollers 007, which is installed on the rack 001 to detect the roller gap of the pair of main rollers 007, and comprises a mounting strip connected to the rack 001 and a plurality of laser devices, the plurality of laser devices being connected to the mounting strip in the axial direction of the main rollers 007; wherein the laser of the laser device irradiates the side edge of the main roller 007, and detects the working surface gap between the mounting strip and the main roller 007. The working surface gap is the distance between the mounting strip and the main roller 007, and the working surface gap of the main roller 007 at different positions on the axis can be obtained by the plurality of laser devices, so as to judge the deformation of the main roller 007.
[0034] Specifically, the pair of main rollers 007 rotates on the rack 001, and the battery pole piece 017 passes through the roller gap between the main rollers 007, so that the battery pole piece 017 is rolled to the required thickness, and as the main rollers 007 are used, the main rollers 007 are deformed due to pressure; the mounting strip is fixed with the rack 001, and specifically adjusts around the center of the main roller 007, and only needs to ensure that the laser device can irradiate the edge of the main roller 007, the mounting strip can adopt an integrally formed frame body, which is distributed on the feeding side or discharging side of the battery pole piece 017, and can carry the laser devices on the two main rollers 007 respectively; the laser device irradiates the edge of the main roller 007, which is used to measure the deformation of the edge of the main roller 007, and the laser device can use a single laser emitter to irradiate the side edge of the roller, and the deformation can be measured by receiving the reflected laser, and the laser emitter is a separate emitting and receiving unit, which can be regarded as an independent single-emitting laser system.
[0035] As Figure 3 and Figure 4As shown in one embodiment of this application, the laser device employs an independent laser emitter and laser receiver. The laser device includes laser sensor A015 and laser sensor B016, which are distributed on both sides of the main roller 007. Laser sensor B016 receives the laser emitted by laser sensor A015. Specifically, laser sensor A015 emits laser light towards laser sensor B016, and part of the laser light is blocked by the main roller 007, allowing laser sensor B016 to receive only a portion of the laser light and determine the deformation amount on the side of the main roller 007. Since multiple laser devices are distributed along the axial direction of the main roller 007, deformation at different positions of the main roller 007 can be measured.
[0036] like Figures 1 to 4 As shown, in one embodiment of this application, the mounting strip includes a first mounting strip 013 and a second mounting strip 014. Along the height direction of the frame 001, the first mounting strip 013 and the second mounting strip 014 are respectively disposed on opposite sides of a pair of main rollers 007. A laser sensor A015 and a laser sensor B016 are mounted on the first mounting strip 013. Laser sensor A015 emits a laser beam towards laser sensor B016, thus detecting edge deformation of the upper main roller 007. Similarly, the second mounting strip 014, through laser sensors A015 and B016, can detect the lower... The problem of edge deformation of the main roller 007; In addition, the first mounting strip 013 and the second mounting strip 014 are not set on the upper and lower sides of the main roller 007, and can also be deviated from the vertical direction of the main roller 007. If the first mounting strip 013 or the second mounting strip 014 is set on the horizontal direction of the axis of the main roller 007, the edge of the feed side or the discharge side of the main roller 007 can also be detected by laser sensor A015 and laser sensor B016. However, this detection method is easy to squeeze the space for transmission of the battery cell electrode sheet 017. Therefore, this application preferably sets the first mounting strip 013 and the second mounting strip 014 on the upper and lower sides of the main roller 007.
[0037] like Figure 3 and Figure 4 As shown, standard blocks 012 are adjustablely mounted on both the first mounting strip 013 and the second mounting strip 014. Multiple laser sensors A015 and multiple laser sensors B016 are mounted on the standard blocks 012. The standard blocks 012 can move along the vertical direction of the frame 001, thereby adjusting the contact area between the laser and the outer edge of the main roller 007 between the laser sensors A015 and B016, so as to adapt to main rollers 007 of different sizes.
[0038] like Figure 4 and Figure 5As shown, the first mounting strip 013 and the second mounting strip 014 are provided with straight grooves, and the end of the standard block 012 is clamped and fixed along the straight groove. The end of the standard block 012 can be clamped, inserted or screwed in the straight groove. The straight groove is only one of the ways, and the punching way can also be used to help fix the standard block 012 and the corresponding mounting strip.
[0039] As shown in Figure 5 , the standard block 012 is also provided with a mounting plate 018 for assembling a laser sensor A 015 or a laser sensor B 016. One mounting plate 018 can be provided for each laser sensor A 015 and laser sensor B 016, that is, the laser sensor A 015 and the laser sensor B 016 are mounted on one mounting plate 018. Or multiple or on one side of the main roller 007 are set as one mounting plate 018, that is, one side of the mounting plate 018 can mount multiple laser sensor A 015 or laser sensor B 016, so as to ensure that the laser emitted by the laser sensor A 015 can be received by the laser sensor B 016, and the side edge of the main roller 007 is measured, so as to obtain the working face gap.
[0040] As shown in Figure 1 and Figure 2 , the two ends of the main roller 007 are provided with bearing seats, and the two sides of the rack 001 are provided with calibration bending cylinders 002. The output shaft of the calibration bending cylinder 002 is connected with the bearing seat. The bearing seat is divided into an outer bearing seat 005 and an inner bearing seat 006. The two side walls of the rack 001 are provided with bending cylinder mounting seats 004. The calibration bending cylinder 002 is mounted between the bending cylinder mounting seat 004 and the outer bearing seat 005. The calibration bending cylinder 002 can timely adjust and correct the roll gap of the two main rollers 007, so as to ensure that the thickness deviation of the battery cell pole piece 017 has higher precision. After the calibration bending cylinder 002 and the battery cell pole piece 017 are rolled, the thickness of the battery cell pole piece 017 can be closed loop to realize precise control.
[0041] As shown in Figure 1 , the rack 001 is provided with a main cylinder 003. The main cylinder 003 drives one of the main rollers 007 to ascend or descend along the height direction of the rack 001, so as to make the pair of main rollers 007 close or away from each other. The main cylinder 003 is arranged at the two ends of the rack 001, and the output shaft thereof is connected with the inner bearing seat 006 of the lower main roller 007. In this way, the lifting height of the bearing seat is improved, which is used to push the lower main roller 007 towards the upper main roller 007, so as to facilitate the leveling effect between the two main rollers 007.
[0042] As shown in Figure 1 , Figure 2 and Figure 4As shown, one side of the rack 001 is also provided with an assembly plate 009, and the assembly plate 009 is also provided with a motor 008 for driving the main roller 007 to rotate, and a support frame 010 is also installed on one side of the assembly plate 009, and the support frame 010 is used to support the motor 008, and the motor 008 can adopt a single, and a pair of main rollers 007 are driven to rotate through gear engagement, so as to realize the rolling effect of the battery cell pole piece 017, in addition, the number of the motor 008 corresponds to the main roller 007, and the output shaft of the motor 008 and the end of the main roller 007 are also provided with a shaft coupling 011, and the motor 008 is fixed on the assembly plate 009, and since the main roller 007 needs to be lifted, the shaft coupling 011 adopts a universal shaft coupling 011, so as to compensate for the amount of lifting.
[0043] As Figure 6 shown, when the first mounting strip 013 and the second mounting strip 014 are arranged on the upper and lower sides of the main roller 007, the distance between the standard blocks 012 is a constant value, that is, H, and the laser device measures the gap between the main roller 007 and the corresponding standard block 012, which is respectively recorded as H1 and H2, and the gap between the pair of main rollers 007 is recorded as h, and according to the figure, h=H-H1-H2-2*H0, wherein H0 is the diameter of the main roller, and the roll gap between the pair of main rollers 007 can be directly obtained, and the direct measurement method is adopted to avoid the indirect measurement method of the pressure sensor, so as to increase the detection error.
[0044] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the utility model concept of the present application is included in the patent protection range of the present application.
Claims
1. A roll gap measuring device comprising a frame (001) and a pair of main rolls (007) rotatably connected to the frame (001), characterized in that, Also included are: A laser detection piece is installed on the frame (001) to detect the roll gap of a pair of main rollers (007), which includes: A mounting strip connected to the frame (001); and A plurality of laser devices connected to the mounting strip in the axial direction of the main roller (007); Wherein the laser of the laser device irradiates the side of the main roller (007), and detects the working surface gap between the mounting strip and the main roller (007).
2. The roll gap measuring device of claim 1, wherein The laser device includes laser sensor A (015) and laser sensor B (016), which are distributed on both sides of the main roller (007), and the laser sensor B (016) receives the laser emitted by the laser sensor A (015).
3. The roll gap measuring device of claim 2, wherein The mounting strip includes a first mounting strip (013) and a second mounting strip (014), which are respectively arranged on the side away from each other of a pair of main rollers (007) in the height direction of the frame (001).
4. The roll gap measuring device of claim 3, wherein The first mounting strip (013) and the second mounting strip (014) are both adjusted to be mounted with a standard block (012), and the laser sensor A (015) and the laser sensor B (016) are both mounted on the standard block (012).
5. The roll gap measuring device of claim 4 wherein, The first mounting strip (013) and the second mounting strip (014) are both provided with a straight slot, and the end of the standard block (012) is clamped and fixed along the straight slot.
6. The roll gap measuring device according to claim 4 or 5, characterized in that The standard block (012) is also provided with a mounting plate (018) for assembling the laser sensor A (015) or the laser sensor B (016).
7. The roll gap measurement device of claim 1, wherein, Both ends of the main roller (007) are provided with a bearing seat, and both sides of the frame (001) are provided with a calibration bending cylinder (002), and the output shaft of the calibration bending cylinder (002) is connected with the bearing seat.
8. The roll gap measurement device of claim 1, wherein, The frame (001) is provided with a main cylinder (003), which drives one of the main rollers (007) to ascend or descend in the height direction of the frame (001), so that a pair of main rollers (007) are close or far away.
9. The roll gap measurement device of claim 1, wherein, One side of the frame (001) is provided with a motor (008) for driving the main roller (007) to rotate.
10. The roll gap measuring device of claim 9, wherein, The number of the motor (008) corresponds to the main roller (007), and a shaft coupling (011) is further installed between the output shaft of the motor (008) and the end of the main roller (007).