Pole piece thickness measuring device and automatic equipment
By introducing a temperature measurement and feedback mechanism into the electrode thickness measurement device, combined with a semiconductor heat sink, the impact of temperature on measurement accuracy is solved, achieving higher measurement accuracy and stability.
Patent Information
- Application Number
- CN202520341024.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing electrode thickness measuring devices have low measurement accuracy when laser thickness gauges are affected by temperature, failing to effectively reduce the impact of temperature factors on the measurement.
A temperature measurement mechanism is used to monitor the temperature of the electrode and the measuring device in real time. By establishing a temperature feedback mechanism, an alarm or shutdown operation is triggered when the temperature exceeds the threshold. Combined with a semiconductor heat sink, the temperature effect is reduced and the measurement accuracy is improved.
This effectively reduces the impact of temperature on measurement accuracy, improving the measurement accuracy and stability of the electrode thickness measuring device.
Smart Images
Figure CN223580954U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of measurement technology especially is a kind of pole piece thickness measuring device and automation equipment. BACKGROUND
[0002] In the production process of lithium battery, the pole piece is rolled from initial thickness to target thickness by rolling process, and then the thickness of the pole piece after rolling is measured by laser thickness gauge to determine whether the target thickness of the pole piece is within the allowable error. In order to improve the rolling precision of the pole piece, the pole piece is generally rolled by hot pressing process.
[0003] Temperature can change the physical properties of optical elements and electronic elements inside the laser thickness gauge, causing temperature drift of the laser thickness gauge and affecting measurement accuracy. Among them, the temperature factors that cause temperature drift of the laser thickness gauge include heat generated by the components of the thickness gauge itself and heat brought by the pole piece after hot pressing. The pole piece thickness measuring device of the prior art does not take effective measures to reduce the influence of the above temperature factors on the laser thickness accuracy, resulting in low measurement accuracy of the pole piece thickness measuring device of the prior art. SUMMARY
[0004] To solve the above technical problems, the utility model provides a kind of pole piece thickness measuring device and automation equipment, can improve the measurement accuracy of pole piece thickness measuring device.
[0005] To achieve the above purpose, the utility model provides a kind of pole piece thickness measuring device, including base, the base is provided with transmission mechanism, thickness measuring mechanism and temperature measuring mechanism, the transmission mechanism is transmitted with pole piece on it, the thickness measuring mechanism is used to measure the thickness of the pole piece, the thickness measuring mechanism and / or its peripheral space forms first area, the temperature measuring mechanism is used to measure the temperature of the pole piece and the temperature of the first area.
[0006] In an embodiment of the utility model, the base is provided with a first support, the transmission mechanism includes a guide roller, the temperature measuring mechanism includes a first temperature sensor, the first temperature sensor and the guide roller are both arranged on the first support, the pole piece is arranged around the guide roller, and the first temperature sensor is used to measure the temperature of the pole piece.
[0007] In an embodiment of the utility model, the base is provided with a second support, the temperature measuring mechanism includes a second temperature sensor, the thickness measuring mechanism and the second temperature sensor are both connected to the second support, and the second temperature sensor is used to measure the temperature of the first area.
[0008] In one embodiment of the utility model, first measuring end and second measuring end are arranged on the second support, the first measuring end and the second measuring end all include the thickness measuring mechanism, the first measuring end and the second measuring end form measuring space, and the pole piece is located in the measuring space.
[0009] In one embodiment of the utility model, the first measuring end and the second measuring end further include a measuring frame and the second temperature sensor, the second temperature sensor is arranged on the measuring frame, the thickness measuring mechanism is arranged in the measuring frame, the measuring frame is provided with a through hole, and the optical signal of the thickness measuring mechanism passes through the through hole and irradiates on the pole piece.
[0010] In one embodiment of the utility model, a connecting frame is arranged on the base, a sliding part is slidably arranged on the connecting frame, and the second support is arranged on the sliding part.
[0011] In one embodiment of the utility model, two first supports are arranged, an installation space is formed between the two first supports, a protective cover is arranged in the installation space, and the sliding part slides into the protective cover.
[0012] In one embodiment of the utility model, a containing cavity is arranged on the second support, and the containing cavity is used for containing the pole piece.
[0013] In one embodiment of the utility model, the pole piece thickness measuring device further includes a heat sink, a first heat dissipation surface is arranged on the thickness measuring mechanism, the heat sink is a semiconductor heat sink, a second heat dissipation surface is arranged on the semiconductor heat sink, and the first heat dissipation surface is in contact with the second heat dissipation surface.
[0014] An automatic equipment is provided, which includes a rolling mechanism, a cooling mechanism and the pole piece thickness measuring device, the rolling mechanism is used for rolling the pole piece, the cooling mechanism is used for cooling the pole piece passing through the rolling mechanism, and the pole piece thickness measuring device is used for measuring the thickness of the pole piece passing through the cooling mechanism.
[0015] Compared with the prior art, the above technical scheme of the utility model has the following advantages.
[0016] The pole piece thickness measuring device of the present application monitors the temperature of the pole piece and the temperature of the first area in real time through the temperature measuring mechanism, establishes a temperature feedback mechanism from two angles of the pole piece temperature and the first area temperature affecting the measuring precision of the thickness measuring mechanism, and can take corresponding alarm operation and shutdown processing when the real-time temperature of the pole piece exceeds the corresponding threshold or the temperature of the first area exceeds the corresponding threshold, so as to reduce the influence of temperature factors on the thickness measuring mechanism and improve the measuring precision of the pole piece thickness measuring device. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0018] Figure 1 is a structural schematic diagram of the pole piece thickness measuring device of the present application;
[0019] Figure 2 is Figure 1 a local enlarged view of A in
[0020] Figure 3 is a first structural schematic diagram of the pole piece thickness measuring device of the present application;
[0021] Figure 4 is a second structural schematic diagram of the pole piece thickness measuring device of the present application;
[0022] Figure 5 is Figure 3 a left view of
[0023] Figure 6 is a structural schematic diagram of the automatic equipment of the present application;
[0024] Figure 7 is a control structure diagram of the pole piece thickness measuring device of the present application;
[0025] Figure 8 is a thickness measuring principle diagram of the pole piece thickness measuring device of the present application.
[0026] EXPLANATION OF DRAWINGS IN THE SPECIFICATION:
[0027] 1, base; 2, conveying mechanism; 3, thickness measuring mechanism; 4, temperature measuring mechanism; 5, first support; 6, guide roller; 7, first temperature sensor; 8, second support; 9, second temperature sensor; 10, first measuring end; 11, second measuring end; 12, measuring space; 13, measuring frame; 14, through hole; 15, connecting frame; 16, sliding part; 17, mounting space; 18, protective cover; 19, heat sink; 20, mounting plate; 21, mounting rod; 22, mounting cavity; 23, electromagnetic pulse heating mechanism; 24, roller pressing mechanism; 25, cooling mechanism; 26, cooling roller; 27, mounting frame; 28, containing cavity. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0029] Embodiment one
[0030] Referring to Figures 1-8 The thickness measuring device for pole piece of the utility model includes base 1, base 1 is provided with conveying mechanism 2, thickness measuring mechanism 3 and temperature measuring mechanism 4, pole piece is conveyed on conveying mechanism 2, thickness measuring mechanism 3 is used for measuring the thickness of pole piece, thickness measuring mechanism 3 and / or its peripheral space form first area, temperature measuring mechanism 4 is used for measuring the temperature of pole piece and the temperature of first area.
[0031] The thickness measuring device for pole piece of the present application reduces the influence of temperature factor on pole piece thickness measuring precision by setting temperature measuring mechanism 4, to improve the measuring precision of pole piece thickness measuring device. Specifically, as shown in Figure 1As shown, the pole piece thickness measuring device of the application comprises a base 1, the base 1 is provided with a transmission mechanism 2, a thickness measuring mechanism 3 and a temperature measuring mechanism 4. Among them, the thickness measuring mechanism 3 is used for measuring the thickness of the pole piece, the thickness measuring mechanism 3 adopts a laser thickness gauge, and the thickness of the pole piece is measured by the emitted laser; the transmission mechanism 2 is used for transmitting the pole piece, so as to measure the thickness of the transmitted pole piece by the thickness measuring mechanism 3; the pole piece measuring device further comprises a controller and an alarm device, the transmission mechanism 2, the thickness measuring mechanism 3, the alarm device and the temperature measuring mechanism 4 are connected with the controller. Further, the thickness measuring mechanism 3 and / or its peripheral space form a first area, the peripheral space of the thickness measuring mechanism 3 is the space area near the thickness measuring mechanism 3, and the temperature of the thickness measuring mechanism 3 can be reflected through the temperature of the peripheral space.That is, the thickness measuring mechanism 3 itself forms the first area, the temperature measuring mechanism 4 is used to collect the real-time temperature of the pole piece and the real-time temperature of the first area (the thickness measuring mechanism 3), and transmit the real-time temperature of the pole piece and the real-time temperature of the first area (the thickness measuring mechanism 3) to the controller, when the real-time temperature of the pole piece exceeds the first threshold value or the real-time temperature of the first area (the thickness measuring mechanism 3) exceeds the second threshold value, the controller controls the transmission mechanism 2 to stop the transmission of the pole piece, and alarms through the alarm device to inform the staff and wait for the staff to carry out corresponding maintenance, until the real-time temperature of the pole piece is lower than the first threshold value and the real-time temperature of the first area (the thickness measuring mechanism 3) is lower than the second threshold value, then restart the transmission mechanism 2, continue to transmit the pole piece; or, the peripheral space of the thickness measuring mechanism 3 forms the first area, the temperature measuring mechanism 4 is used to measure the temperature of the pole piece and the temperature of the first area (the peripheral space of the thickness measuring mechanism 3), and transmit the real-time temperature of the pole piece and the real-time temperature of the first area (the peripheral space of the thickness measuring mechanism 3) to the controller, when the real-time temperature of the pole piece exceeds the first threshold value or the real-time temperature of the first area (the peripheral space of the thickness measuring mechanism 3) exceeds the third threshold value, the controller controls the transmission mechanism 2 to stop the transmission of the pole piece, and alarms through the alarm device to inform the staff and wait for the staff to carry out corresponding maintenance, until the real-time temperature of the pole piece is lower than the first threshold value and the real-time temperature of the first area (the peripheral space of the thickness measuring mechanism 3) is lower than the third threshold value, then restart the transmission mechanism 2, continue to transmit the pole piece; or, the thickness measuring mechanism 3 and its peripheral space form the first area, the temperature measuring mechanism 4 is used to measure the temperature of the pole piece, the temperature of the thickness measuring mechanism 3 and the temperature of its peripheral space, and transmit the real-time temperature of the pole piece and the real-time temperature of the first area (the real-time temperature of the thickness measuring mechanism 3 and the real-time temperature of the peripheral space of the thickness measuring mechanism 3) to the controller, when the real-time temperature of the pole piece exceeds the first threshold value or the real-time temperature of the thickness measuring mechanism 3 exceeds the second threshold value or the real-time temperature of the peripheral space of the thickness measuring mechanism 3 exceeds the third threshold value, the controller controls the transmission mechanism 2 to stop the transmission of the pole piece, and alarms through the alarm device to inform the staff and wait for the staff to carry out corresponding maintenance, until the real-time temperature of the pole piece is lower than the first threshold value, the real-time temperature of the thickness measuring mechanism 3 is lower than the second threshold value, and the real-time temperature of the peripheral space of the thickness measuring mechanism 3 is lower than the third threshold value, then restart the transmission mechanism 2, continue to transmit the pole piece.The first threshold value is a temperature threshold value of the pole piece, and the pole piece control at the first threshold value can reduce the influence of the temperature of the pole piece on the thickness measuring mechanism 3, and improve the measurement accuracy of the pole piece thickness measuring device; the second threshold value is a temperature threshold value of the thickness measuring mechanism 3, and the temperature control of the thickness measuring mechanism 3 at the second threshold value can reduce the influence of the temperature of the thickness measuring mechanism 3 on the thickness measuring mechanism 3, and improve the measurement accuracy of the pole piece thickness measuring device; the third threshold value is a temperature threshold value of the peripheral space of the thickness measuring mechanism 3, and the temperature control of the peripheral space of the thickness measuring mechanism 3 at the second threshold value can reduce the influence of the temperature of the peripheral space of the thickness measuring mechanism 3 on the thickness measuring mechanism 3, and improve the measurement accuracy of the pole piece thickness measuring device.
[0032] The pole piece thickness measuring device of the present application monitors the temperature of the pole piece and the temperature of the first area in real time through the temperature measuring mechanism 4, to establish a temperature feedback mechanism from two angles of the pole piece temperature and the first area temperature that affect the measurement accuracy of the thickness measuring mechanism, and when the real-time temperature of the pole piece exceeds the corresponding threshold value or the temperature of the first area exceeds the corresponding threshold value, corresponding alarm operation and shutdown processing can be taken to reduce the influence of temperature factors on the thickness measuring mechanism 3, and improve the measurement accuracy of the pole piece thickness measuring device.
[0033] In one of the embodiments, the base 1 is provided with a first support 5, the transmission mechanism 2 includes a guide roller 6, and the temperature measuring mechanism 4 includes a first temperature sensor 7, the first temperature sensor 7 and the guide roller 6 are arranged on the first support 5, the pole piece is wound on the guide roller 6, and the first temperature sensor 7 is used to measure the temperature of the pole piece.
[0034] The transmission mechanism 2 and the temperature measuring mechanism 4 of the present application are arranged on the first support 5, and the temperature measuring mechanism 4 is used to collect the real-time temperature of the pole piece on the transmission mechanism 2. Specifically, as shown in the drawings, Figure 1 and Figure 3As shown, the first support 5 is arranged on the base 1, the first support 5 comprises two mounting plates 20, the two mounting plates 20 are arranged in parallel and in the vertical direction on the base 1, the transmission mechanism 2 comprises a plurality of guide rollers 6, the plurality of guide rollers 6 are rotatably arranged between the two mounting plates 20, the axes of the plurality of guide rollers 6 are arranged in parallel, the axes of the guide rollers 6 are arranged perpendicular to the mounting plates 20, the pole piece is arranged around the plurality of guide rollers 6 (the pole piece is not shown in the figure), the pole piece is transmitted by the rotatable guide rollers 6 and is placed in a tensioned state, so as to measure the thickness of the pole piece by the thickness measuring mechanism 3. Further, the temperature measuring mechanism 4 comprises a first temperature sensor 7, the first support 5 is further provided with a mounting rod 21, the mounting rod 21 is arranged between the two mounting plates 20, the first temperature sensor 7 is arranged on the mounting rod 21, the mounting rod 21 is arranged close to the pole piece, so that the first temperature sensor 7 arranged on the mounting rod 21 can collect the temperature of the pole piece. The first temperature sensor 7 has high sensitivity, the measurement accuracy can reach 0.1℃, the high temperature resistance can reach 800℃, high-density metal wires are used, the signal transmission performance is strong, and the oxidation resistance is good. The first temperature sensor 7 can be arranged in multiple, and the temperature of the pole piece is collected by the plurality of first temperature sensors 7, which can play a redundant role.
[0035] In one of the embodiments, the base 1 is provided with a second support 8, the temperature measuring mechanism 4 comprises a second temperature sensor 9, and the thickness measuring mechanism 3 and the second temperature sensor 9 are connected to the second support 8, and the second temperature sensor 9 is used to measure the temperature of the first area.
[0036] The temperature measuring mechanism 4 and the thickness measuring mechanism 3 of the present application are connected to the second support 8, the temperature measuring mechanism 4 is used to collect the real-time temperature of the first area, that is, the temperature measuring mechanism 4 is used to collect the real-time temperature of the thickness measuring mechanism 3 and / or its peripheral space. Specifically, as shown in Figure 1 and Figure 4 As shown, the base 1 is provided with a second support 8, the thickness measuring mechanism 3 is arranged on the second support 8, the second support 8 is arranged close to the first support 5, so that the thickness measuring mechanism 3 on the second support 8 measures the thickness of the pole piece on the first support 5; the temperature measuring mechanism 4 comprises a second temperature sensor 9, the second temperature sensor 9 is connected to the second support 8, and the second temperature sensor 9 is arranged close to the thickness measuring mechanism 3, so as to collect the real-time temperature of the thickness measuring mechanism 3 and / or its peripheral space by the second temperature sensor 9 on the second support 8. Among them, the second temperature sensor 9 can be arranged in two, one is used to collect the real-time temperature of the thickness measuring mechanism 3, and the other is used to collect the real-time temperature of the peripheral space of the thickness measuring mechanism 3.
[0037] In one embodiment, the second support 8 is provided with a first measuring end 10 and a second measuring end 11, the first measuring end 10 and the second measuring end 11 each include a thickness measuring mechanism 3, and a measuring space 12 is formed between the first measuring end 10 and the second measuring end 11, and the pole piece is located in the measuring space 12.
[0038] The thickness of the pole piece is measured by the first measuring end 10 and the second measuring end 11. Specifically, as shown in Figure 2 and Figure 4 , the second support 8 is provided with a first measuring end 10 and a second measuring end 11, the first measuring end 10 and the second measuring end 11 each include a thickness measuring mechanism 3, and the thickness of the pole piece is measured by the two thickness measuring mechanisms 3. The second support 8 is a C-shaped support, and the two ends of the C-shaped support form a first end and a second end, respectively. The first end is used to install the first measuring end 10, and the second end is used to install the second measuring end 11. The first measuring end 10 and the second measuring end 11 are oppositely arranged, and the two thickness measuring mechanisms 3 are oppositely arranged. Further, a measuring space 12 is formed between the first measuring end 10 and the second measuring end 11, and the pole piece is located in the measuring space 12, so that the thickness measuring mechanism 3 of the first measuring end 10 and the thickness measuring mechanism 3 of the second measuring end 11 measure the thickness of the pole piece located in the measuring space 12. Among them, the laser of the thickness measuring mechanism 3 of the first measuring end 10 and the thickness measuring mechanism 3 of the second measuring end 11 irradiates the surface of the pole piece located in the measuring space 12, and the thickness of the pole piece can be calculated by the triangular measurement method, as shown in Figure 8 , L is the distance between the thickness measuring mechanism 3 of the first measuring end 10 and the thickness measuring mechanism 3 of the second measuring end 11, A is the distance between the thickness measuring mechanism 3 of the first measuring end 10 and the upper surface of the pole piece, B is the distance between the thickness measuring mechanism 3 of the second measuring end 11 and the lower surface of the pole piece, and T is the thickness of the pole piece. Then T = L - A - B.
[0039] In one embodiment, the first measuring end 10 and the second measuring end 11 further include a measuring frame 13 and a second temperature sensor 9, the second temperature sensor 9 is arranged on the measuring frame 13, the thickness measuring mechanism 3 is arranged in the measuring frame 13, the measuring frame 13 is provided with a through hole 14, and the optical signal of the thickness measuring mechanism 3 irradiates the pole piece through the through hole 14.
[0040] As shown in Figure 2 , the first measuring end 10 and the second measuring end 11 further include a measuring frame 13 and a second temperature sensor 9, the measuring frame 13 of the first measuring end 10 and the measuring frame 13 of the second measuring end 11 are oppositely arranged, the measuring frame 13 is hollow inside to form an installation cavity 22, and the through hole 14 is arranged on the side of the two measuring frames 13 close to each other, and the installation cavity 22 is in communication with the through hole 14, as shown in Figure 2As shown, the bottom of the upper measurement frame 13 is provided with a through hole 14, and the top of the lower measurement frame 13 is provided with a through hole 14, and the two through holes 14 are oppositely arranged. The thickness measurement mechanism 3 is arranged in the mounting cavity 22 in the measurement frame 13, and the laser emitted by the thickness measurement mechanism 3 (laser thickness gauge) is irradiated onto the pole piece in the measurement space 12, that is, the laser of the thickness measurement mechanism 3 in the upper measurement frame 13 is irradiated onto the pole piece (the top surface of the pole piece) through the through hole 14 in the bottom of the upper measurement frame 13, and the laser of the thickness measurement mechanism 3 in the lower measurement frame 13 is irradiated onto the pole piece (the bottom surface of the pole piece) through the through hole 14 in the top of the lower measurement frame 13, and the thickness of the pole piece is measured by the thickness measurement mechanism 3 of the first measurement end 10 and the thickness measurement mechanism 3 of the second measurement end 11. In addition, the second temperature sensor 9 is arranged on the measurement frame 13, and one thickness measurement mechanism 3 corresponds to one second temperature sensor 9, so as to collect the real-time temperature of the first area by the second temperature sensor 9.
[0041] In one of the embodiments, the base 1 is provided with a connecting frame 15, and a sliding part 16 is slidably arranged on the connecting frame 15, and the second support 8 is arranged on the sliding part 16, and the sliding direction of the sliding part 16 is along the direction close to or away from the pole piece.
[0042] The thickness measurement mechanism 3 of the present application can measure the thickness of the pole piece at any position along the width direction of the pole piece. Specifically, as shown in the figure, Figure 1 As shown, the base 1 is provided with a mounting frame 27, and the mounting frame 27 is provided with a connecting frame 15, and a sliding part 16 is slidably arranged on the connecting frame 15. For example, a sliding block is arranged on the connecting frame 15, and a sliding rail is slidably arranged on the sliding block, and the sliding rail serves as the sliding part 16. The second support 8 is arranged on the sliding rail (sliding part 16), so that when the sliding rail slides, the sliding rail can drive the second support 8 to slide. Further, the sliding direction of the sliding part 16 is along the direction close to or away from the pole piece, that is, the sliding direction of the sliding part 16 is along the width direction of the pole piece, and the width direction of the pole piece is the axis direction of the guide roller 6. Since the first measurement end 10 and the second measurement end 11 are arranged on the second support 8, the second support 8 can drive the first measurement end 10 and the second measurement end 11 to move along the width direction of the pole piece, so that the first measurement end 10 and the second measurement end 11 can measure the thickness of the pole piece at any position along the width direction of the pole piece. The sliding movement of the sliding part 16 can be driven by a motor as a driving source, and the output shaft of the motor is connected with the sliding part 16 through a screw mechanism to convert the rotary movement of the motor into the linear sliding movement of the sliding rail.
[0043] In one of the embodiments, the first support 5 is provided with two, and the two first supports 5 form a mounting space 17, and a protective cover 18 is arranged in the mounting space 17, and the sliding part 16 slides into the protective cover 18.
[0044] As shown in Figure 3 two first supports 5 are provided, the two first supports 5 are arranged side by side, and the two first supports 5 are apart from each other by a preset distance, so that an installation space 17 is formed between the two first supports 5, as shown in Figure 5 When the sliding part 16 slides on the connecting frame 15 along the width direction of the pole piece, the sliding movement of the slide rail is accommodated by the installation space 17. Further, the installation space 17 is provided with a protective cover 18, when the slide rail slides close to the pole piece, the sliding part 16 slides into the protective cover 18, when the slide rail slides away from the pole piece, the sliding part 16 slides out of the protective cover 18. During the sliding process of the sliding part 16, the protective cover 18 not only plays an aesthetic role, but also protects the slide rail, preventing other sundries from entering the slide rail and affecting the normal sliding of the slide rail.
[0045] In one embodiment, the second support 8 is provided with an accommodation cavity 28, and the accommodation cavity 28 is used to accommodate the pole piece.
[0046] As shown in Figure 1 and Figure 4 The second support 8 is a C-shaped support, and the middle of the C-shaped support forms the accommodation cavity 28, so as to accommodate the pole piece through the accommodation cavity 28. Further, the second support 8 slides along the direction close to or away from the pole piece, that is, the second support 8 slides along the width direction of the pole piece, therefore, the extension direction of the accommodation cavity 28 is along the width direction of the pole piece, and during the sliding process of the second support 8, the pole piece is accommodated in the accommodation cavity 28.
[0047] In one embodiment, the pole piece thickness measuring device further comprises a heat sink 19, the thickness measuring mechanism 3 is provided with a first heat dissipation surface, the heat sink 19 is a semiconductor heat sink, the semiconductor heat sink is provided with a second heat dissipation surface, and the first heat dissipation surface is in contact with the second heat dissipation surface.
[0048] The heat sink 19 of the thickness measurement mechanism 3 of the present application no longer uses cooling water cooling, but uses a semiconductor heat sink. Further, the thickness measurement mechanism 3 is provided with a first heat dissipation surface, that is, the laser thickness gauge is provided with a first heat dissipation surface, and the semiconductor heat sink is provided with a second heat dissipation surface. The first heat dissipation surface and the second heat dissipation surface are in close contact through heat dissipation silicone grease, so that the heat on the thickness measurement mechanism 3 is transferred to the semiconductor heat sink, and the heat is taken away by the semiconductor heat sink, realizing the cooling of the thickness measurement mechanism 3. The heat sink 19 can be arranged in the first area. In addition, since the thickness measurement mechanism 3 is provided with the heat sink 19, and the key factor affecting the thickness measurement mechanism 3 is the temperature of the first area, the fourth threshold value corresponding to the thickness measurement mechanism 3 and the fifth threshold value corresponding to the peripheral space of the thickness measurement mechanism 3 can be set. The fourth threshold value is less than the second threshold value, and the fifth threshold value is less than the third threshold value. When the real-time temperature of the thickness measurement mechanism 3 exceeds the fourth threshold value and is less than the second threshold value, or the real-time temperature of the peripheral space of the thickness measurement mechanism 3 exceeds the fifth threshold value and is less than the third threshold value, the controller can increase the heat dissipation power of the heat sink 19 to cool the thickness measurement mechanism 3, so as to reduce the influence of temperature factor on the thickness measurement mechanism 3 and improve the measurement accuracy of the thickness measurement mechanism 3. In addition, when the real-time temperature of the thickness measurement mechanism 3 exceeds the second threshold value or the real-time temperature of the peripheral space of the thickness measurement mechanism 3 exceeds the third threshold value through the semiconductor heat sink, the controller controls the transmission mechanism 2 and the like to stop processing, and waits for maintenance personnel to maintain. The liquid cooling or air cooling mode of the thickness measurement mechanism 3 needs to be connected with cooling water and air source. During the operation of the second support 8, the flow is affected by the pipeline, and the problem of unstable flow may occur due to bending. Therefore, the semiconductor heat sink is used in the present application, and cooling liquid is not needed, so that the influence of external movement is avoided, and stable temperature control can be realized. In addition, for the fan cooling or other cooling liquid cooling mode, the cooling pipe is located in the inside of the thickness measurement mechanism 3 during cooling, and the phenomenon of ice formation on the surface of the cooling pipe and condensate water droplets may occur. The condensate water droplets may affect the internal components of the thickness measurement mechanism 3, reduce the measurement accuracy, and the condensate water droplets falling on the pole piece may affect the measurement result and damage the electrochemical performance of the pole piece. On the contrary, the semiconductor heat sink is used for refrigeration in the present application, the refrigeration temperature can be accurately controlled by controlling the current, the heat dissipation power of the semiconductor heat sink can be reduced when the temperature of the first area reaches the freezing critical value, the temperature of the refrigeration area is increased, and the refrigeration area of the semiconductor heat sink is located outside the thickness measurement mechanism 3, so that the secondary influence of condensate water on the internal components is avoided in abnormal conditions. In addition, the semiconductor heat sink includes a refrigeration sheet, heat insulation cotton, heat dissipation silicone grease, a heat dissipation fan, a heat dissipation fin, a cold conducting block, a voltage boosting module and a temperature sensor, the working environment temperature range is-55℃-83℃, the external size is 40mm*40mm*4mm, and the inside has a heat dissipation device.The thickness measuring device of the pole piece can effectively reduce the temperature of the thickness measuring mechanism 3. In actual application, it can be applied to an environment with an ambient temperature <100°C, can well protect the thickness measuring mechanism 3, and can be used in the field of high-temperature detection. After the thickness measuring device of the pole piece is powered on, the transmission mechanism 2, the temperature measuring mechanism 4, the thickness measuring mechanism 3, and the heat sink 19 are started at the same time, and thickness measurement, temperature reduction, and temperature collection are simultaneously performed. The specific electrical control diagram is as shown in the following. Figure 7
[0049] Embodiment Two
[0050] An automatic device is provided, which comprises a rolling mechanism 24, a cooling mechanism 25, and a pole piece thickness measuring device. The rolling mechanism 24 is used for rolling the pole piece, the cooling mechanism 25 is used for cooling the pole piece passing through the rolling mechanism 24, and the pole piece thickness measuring device is used for measuring the thickness of the pole piece passing through the cooling mechanism 25.
[0051] The automatic device of the present application comprises a pole piece thickness measuring device. In addition, the automatic device further comprises a rolling mechanism 24 and a cooling mechanism 25. The working process of the automatic device is as follows: the pole piece is unwound, the pole piece is corrected, the pole piece is brushed, the pole piece is heated by the electromagnetic pulse heating mechanism 23, the pole piece is pulled up by the front pulling mechanism, the pole piece is rolled by the rolling mechanism 24 (hot rolling, with a hydraulic system), the pole piece is pulled up by the rear pulling mechanism, the pole piece is cooled by the cooling mechanism 25, the pole piece is measured in thickness by the pole piece thickness measuring device, the pole piece is corrected, the pole piece is cut, and the pole piece is wound. The specific structure diagram of the automatic device is as shown in the following. Figure 6 The rolling mechanism 24 is used for rolling the pole piece to roll the pole piece to a target thickness. In order to improve the rolling effect, the rolling process is realized by the electromagnetic pulse heating mechanism 23 to realize the rolling heat process (the rolling is heated by the heat conduction oil, and the rolling temperature is 120°C). Therefore, the heat on the rolling is transferred to the pole piece, the temperature of the pole piece is increased, and therefore, the pole piece after rolling is cooled by the cooling mechanism 25 to reduce the influence of the temperature of the pole piece on the thickness measuring mechanism 3 and improve the measurement accuracy of the thickness measuring mechanism 3. Further, the pole piece cooled by the cooling mechanism 25 is transmitted to the pole piece thickness measuring device, and the thickness of the pole piece is measured by the pole piece thickness measuring device. When the temperature of the pole piece, the temperature of the thickness measuring mechanism 3, and the temperature of the peripheral space thereof exceed the corresponding threshold value, the controller controls the automatic device to stop, waits for the maintenance personnel to process, and makes the temperature of the pole piece, the temperature of the thickness measuring mechanism 3, and the temperature of the peripheral space thereof lower than the corresponding threshold value to restart.
[0052] In one of the embodiments, the cooling mechanism 25 comprises a cooling roller 26, and the pole piece passing through the rolling mechanism 24 is arranged on the cooling roller 26.
[0053] The cooling mechanism 25 comprises cooling rollers 26, and the cooling rollers 26 are arranged in plurality to improve the cooling capacity of the cooling rollers 26 on the pole piece. The pole piece is wound on the plurality of cooling rollers 26 in a preset order, and the pole piece is cooled and cooled by the plurality of cooling rollers 26 at the same time, so as to reduce the influence of the temperature of the pole piece on the thickness measuring mechanism 3 and improve the measuring precision of the thickness measuring mechanism 3.
[0054] It should be noted that the above are only preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims
1. A pole piece thickness measuring device characterized by: The base (1) is provided with a transmission mechanism (2), a thickness measuring mechanism (3) and a temperature measuring mechanism (4), the transmission mechanism (2) is provided with a pole piece, the thickness measuring mechanism (3) is used for measuring the thickness of the pole piece, the thickness measuring mechanism (3) and / or its peripheral space forms a first area, and the temperature measuring mechanism (4) is used for measuring the temperature of the pole piece and the temperature of the first area.
2. The pole piece thickness gauge of claim 1, wherein: The base (1) is provided with a first support (5), the transmission mechanism (2) comprises a guide roller (6), the temperature measuring mechanism (4) comprises a first temperature sensor (7), the first temperature sensor (7) and the guide roller (6) are arranged on the first support (5), the pole piece is arranged on the guide roller (6), and the first temperature sensor (7) is used for measuring the temperature of the pole piece.
3. The pole piece thickness gauge of claim 2, wherein: The base (1) is provided with a second support (8), the temperature measuring mechanism (4) comprises a second temperature sensor (9), and the thickness measuring mechanism (3) and the second temperature sensor (9) are connected to the second support (8). The second temperature sensor (9) is used for measuring the temperature of the first area.
4. The pole piece thickness gauge of claim 3, wherein: The second support (8) is provided with a first measuring end (10) and a second measuring end (11), the first measuring end (10) and the second measuring end (11) both comprise the thickness measuring mechanism (3), a measuring space (12) is formed between the first measuring end (10) and the second measuring end (11), and the pole piece is located in the measuring space (12).
5. The pole piece thickness gauge of claim 4, wherein: The first measuring end (10) and the second measuring end (11) further comprise a measuring frame (13) and the second temperature sensor (9), the second temperature sensor (9) is arranged on the measuring frame (13), the thickness measuring mechanism (3) is arranged in the measuring frame (13), the measuring frame (13) is provided with a through hole (14), and the light signal of the thickness measuring mechanism (3) passes through the corresponding through hole (14) and irradiates on the pole piece.
6. The pole piece thickness gauge of claim 3, wherein: The base (1) is provided with a connecting frame (15), the connecting frame (15) is slidably provided with a sliding part (16), the second support (8) is arranged on the sliding part (16), and the sliding direction of the sliding part (16) is along the direction close to or away from the pole piece.
7. The pole piece thickness gauge of claim 6, wherein: The first support (5) is provided with two first supports (5), an installation space (17) is formed between the two first supports (5), a protective cover (18) is arranged in the installation space (17), and the sliding part (16) slides into the protective cover (18).
8. The pole piece thickness gauge of claim 3, wherein: The second support (8) is provided with a containing cavity (28), and the containing cavity (28) is used for containing the pole piece.
9. The pole piece thickness gauge of claim 1, wherein: The pole thickness measuring device further comprises a heat sink (19), the thickness measuring mechanism (3) is provided with a first heat dissipation surface, the heat sink (19) is a semiconductor heat sink, the semiconductor heat sink is provided with a second heat dissipation surface, and the first heat dissipation surface is in contact with the second heat dissipation surface.
10. An automated apparatus, characterized by: The pole piece thickness measuring device according to any one of claims 1-9, wherein the pole piece thickness measuring device is included in a pole piece rolling mechanism (24) for rolling the pole piece, a cooling mechanism (25) for cooling the pole piece that has passed through the pole piece rolling mechanism (24), and a pole piece thickness measuring device for measuring the thickness of the pole piece that has passed through the cooling mechanism (25).