Thickness gauge

Abstract

The utility model provides a thickness gauge which comprises a thickness measuring module, a driving device and a material belt guiding device, the thickness measuring module comprises a thickness measuring frame, a first thickness measuring head and a second thickness measuring head, the thickness measuring frame is provided with a material passing through groove, the first thickness measuring head and the second thickness measuring head are installed on one side of the thickness measuring frame, the first thickness measuring head is located on the side edge of a material before thickness measurement, and the second thickness measuring head is located on the side edge of the material before thickness measurement. The second thickness measuring head is positioned in the middle of the material; the driving device is arranged below the thickness measuring module and is used for driving the thickness measuring frame to simultaneously drive the first thickness measuring head and the second thickness measuring head to detect the thickness of the material passing through the material passing through groove; the material belt guiding device is arranged on the side edge of the thickness measuring module and used for leveling the materials. The device has the remarkable beneficial effects of improving the measurement precision, enhancing the automation degree, optimizing the flatness of the material belt, improving the production efficiency, enhancing the adaptability and the like.

Description

Technical Field

[0001] This application relates to the field of thickness measuring equipment, and particularly to a thickness gauge. Background Art

[0002] With the rapid development of the new energy industry, as a core component, the performance and quality requirements for lithium batteries are becoming increasingly stringent. During the production process of lithium batteries, the thickness control of the electrode sheet is one of the key factors to ensure the performance stability and safety of the battery. The uniformity of the electrode sheet thickness directly affects the battery capacity, cycle life, and safety. Therefore, the accurate detection of the electrode sheet thickness has become an essential part of the lithium battery production line.

[0003] Traditional methods for detecting the thickness of electrode sheets mostly rely on manual measurement or simple mechanical thickness gauges, and these methods have many deficiencies. Manual measurement is not only inefficient but also greatly affected by human factors, making it difficult to ensure the accuracy and consistency of measurement results. Although mechanical thickness gauges can improve the detection efficiency to a certain extent, they often have problems such as limited measurement accuracy, low automation level, and inability to adapt to high-speed production lines.

[0004] In addition, during the production process of lithium battery electrode sheets, they are often continuously transported in the form of a material tape, and the flatness of the material tape will also directly affect the accuracy of thickness measurement. If the material tape is bent, wrinkled, etc. during the transportation process, it will cause deviation in the thickness measurement result, thereby affecting the subsequent production process and product quality. Utility Model Content

[0005] The purpose of this application is to provide a thickness gauge, aiming to achieve accurate, efficient, and automated detection of the thickness of lithium battery electrode sheets through innovative structural design and technical means, while solving the influence of the flatness of the material tape on the measurement accuracy, and improving the overall efficiency and product quality of the lithium battery production line.

[0006] To achieve the above purpose, this application provides the following technical solutions:

[0007] A thickness gauge includes a thickness measurement module, a driving device, and a material tape guiding device. Among them, the thickness measurement module includes a thickness measurement frame, a first thickness measurement head, and a second thickness measurement head. A material passing through slot is provided on the thickness measurement frame. The first thickness measurement head and the second thickness measurement head are installed on one side of the thickness measurement frame. Before thickness measurement, the first thickness measurement head is located on the side of the material, and the second thickness measurement head is located in the middle of the material. The driving device is arranged below the thickness measurement module and is used to drive the thickness measurement frame to simultaneously drive the first thickness measurement head and the second thickness measurement head to perform thickness detection on the material passing through the through slot. The material tape guiding device is arranged on the side of the thickness measurement module and is used to level the material.

[0008] Further, the thickness measurement frame is in a shape of a double-square frame.

[0009] Furthermore, at least one protective member is provided on the thickness measuring frame, and the protective member spans the material passing slot in the vertical direction, the upper end of the protective member is fixed above the material passing slot, and the lower end of the protective member is fixed below the material passing slot.

[0010] Furthermore, the material strip guiding device includes a first guide roller, a second guide roller, a transmission gear and a transfer belt. The first guide roller is arranged between the two second guide rollers. The ends of the two second guide rollers are connected with a transfer gear. The second guide roller is synchronized with the transfer gear through the transfer belt.

[0011] Furthermore, the first guide roller is located below the second guide roller.

[0012] Furthermore, the material strip guiding device also includes a marker placing device, which includes a marker block part, a marker block fixing frame, a marker block support plate and a marker block locking screw. The marker block fixing frame is provided with a marker block placing groove, and the marker block part is provided with multiple blocks respectively installed in the marker block placing grooves through the marker block fixing frame, and the marker block locking screw is used to lock the marker block part.

[0013] Furthermore, a side wall of the block placement groove is provided with an air blowing hole, and the air blowing hole blows air along the length direction of the block placement groove.

[0014] Furthermore, an air inlet head is provided on one side of the block fixing frame, the air inlet head is communicated with the air blowing hole, and the air inlet head is used to connect to an external air source.

[0015] The beneficial effects of this application are:

[0016] (1) This application adopts a dual thickness measuring head design, that is, the first thickness measuring head is located on the side of the material, and the second thickness measuring head is located in the middle of the material. This layout can more comprehensively and accurately reflect the thickness of the material, especially for possible uneven thickness problems, and can provide more detailed measurement results, thereby improving the accuracy and reliability of the measurement.

[0017] For wide pole pieces, traditional single-point or single-line thickness measurement methods may not fully reflect the overall thickness distribution. However, this thickness gauge, with its dual-gauge design, can simultaneously inspect the sides and center of the pole piece, enabling more comprehensive and accurate thickness measurements at different locations across the pole piece's width. This multi-point measurement approach helps capture potential thickness fluctuations or inconsistencies in the pole piece, providing more accurate data for subsequent production process adjustments and optimization.

[0018] (2) Through the integrated drive device, the thickness gauge can automatically detect the thickness of the material passing through the material chute without manual intervention, which significantly improves the detection efficiency and reduces labor costs.

[0019] (3) The material belt guiding device provided in the present application can level the material before testing, effectively solving the problems of bending, wrinkling and the like that may occur during the transmission of the material belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a thickness gauge provided in one embodiment of the present application;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of a thickness measurement module and a driving device provided in one embodiment of the present application;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of a material strip guide device provided in one embodiment of the present application;

[0023] Figure 4 for Figure 3 The partial enlarged view at point A is used to show the structural schematic diagram of the block placement device;

[0024] Description of reference numerals:

[0025] 1. Thickness measurement module; 2. Driving device; 3. Material strip guide device; 4. Standard block placement device;

[0026] 11. Thickness measuring frame; 12. First thickness measuring head; 13. Second thickness measuring head; 14. Protective element;

[0027] 111. Material passing chute;

[0028] 31. First guide roller; 32. Second guide roller; 33. Transmission gear; 34. Transmission belt;

[0029] 41. Standard block; 42. Standard block fixing frame; 43. Standard block supporting plate; 44. Standard block locking screw;

[0030] 421, block placement slot; 422, air hole; 423, air inlet head; DETAILED DESCRIPTION

[0031] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0032] In this embodiment, Figure 1As shown, the thickness gauge of the present application mainly includes three parts: a base, a thickness measuring module 1, a driving device 2 and a material guide device 3. Among them, the thickness measuring module 1 is a core component, and its structure includes a thickness measuring frame 11, a first thickness measuring head 12 and a second thickness measuring head 13.

[0033] The thickness measuring frame 11 is made of marble and features a material passageway 111 on its upper portion. This passageway 111 is wider than the material to be measured (in this embodiment, battery electrodes) to ensure smooth passage. A first thickness measuring head 12 and a second thickness measuring head 13 are mounted on one side of the frame 11, facing the material's direction of travel. These two thickness measuring heads are mounted on the frame 11 using a fixture to ensure accurate and stable positioning.

[0034] Before measuring thickness, the first thickness measuring head 12 is adjusted to the side of the material, while the second thickness measuring head 13 is located in the middle of the material. This layout design is intended to obtain thickness data from different positions on the material, thereby more comprehensively reflecting the thickness of the material.

[0035] The drive device 2 is located below the thickness measurement module 1 and is connected to the thickness measurement frame 11. This drive device 2 can utilize a high-precision power source such as a servo motor or stepper motor. Through a precise transmission mechanism (such as a screw nut), it drives the thickness measurement frame 11 left and right along a pre-set track. During the thickness measurement process, upon receiving a control signal, the drive device 2 drives the thickness measurement frame 11, simultaneously driving the first and second thickness measurement heads 12 and 13 to perform thickness measurements on the material passing through the material feed slot 111.

[0036] In order to ensure that the material remains flat during the testing process, the present application also provides a material belt guide device 3 on the side of the thickness measurement module 1. Before the material enters the material flow channel 111, it is first flattened by the material belt guide device 3 to eliminate the impact of bending, wrinkling and other problems that may occur during the transmission process on the thickness measurement accuracy.

[0037] The workflow of this embodiment is as follows: During actual use, the material to be measured (electrode piece) is continuously conveyed to the feed end of the thickness gauge in the form of a material strip. First, the material passes through the material strip guide device 3 for leveling. Then, it enters the material feed slot 111 of the thickness measurement module 1. At this point, the drive device 2 is activated, driving the thickness measurement frame 11 to drive the first thickness measurement head 12 and the second thickness measurement head 13 to measure the material thickness. Finally, the measurement data is fed back to the control system or display screen via the signal transmission system for the operator to view.

[0038] like Figure 2As shown, in this embodiment, the thickness measuring frame 11 adopts a unique U-shaped design, which not only enhances the stability of the structure. In addition, in order to further improve the safety and stability during the thickness measurement process, at least one protective member 14 is added to the thickness measuring frame 11. The protective member 14 spans the material feeding channel 111 in the vertical direction, with its upper end firmly fixed to the upper edge of the material feeding channel 111, and its lower end firmly connected to the supporting structure below the material feeding channel 111. This design effectively prevents the thickness gauge from experiencing various vibrations, bumps, and even impacts during transportation. Without this protective member 14, the thickness measuring frame 11 is made of marble and is relatively fragile. It is easy to be damaged, resulting in a decrease in performance or even malfunction of the thickness gauge. With this protective member 14, even in the face of harsh transportation environments, the thickness gauge can maintain the integrity and stability of the thickness measuring frame 11, thereby ensuring that it can be put into use quickly after arriving at the destination.

[0039] like Figure 3 As shown, in this embodiment, the material belt guide device 3 includes a first guide roller 31, a second guide roller 32, a transmission gear 33, and a transfer belt. The first guide roller 31 is disposed between two second guide rollers 32. The ends of the two second guide rollers 32 are connected to the transfer gear. The second guide rollers 32 rotate synchronously with the transfer gear via the transfer belt. This ensures the stability and consistency of the material Q during the transmission process.

[0040] In this embodiment, the first guide roller 31 is located below the second guide roller 32 .

[0041] like Figure 4 As shown, in this embodiment, in order to achieve accurate calibration of the material thickness, the strip guide device 3 is further provided with a block placement device 4. The strip guide device 3 also includes the block placement device 4, which includes a block portion 41, a block fixing frame 42, a block support plate 43, and a block locking screw 44. The block fixing frame 42 is provided with a block placement slot 421. The block portion 41 is provided with a plurality of blocks, each of which is mounted in the block placement slot 421 via the block support plate 43. The block locking screw 44 is used to lock the block portion 41.

[0042] like Figure 4 As shown, in this embodiment, to maintain the cleanliness of the standard block portion 41 and prevent dust and impurities from affecting calibration accuracy, an air hole 422 is provided on a side wall of the standard block placement slot 421. This air hole 422 blows air along the length of the standard block placement slot 421, automatically cleaning the standard block placement slot 421 and the standard block by supplying an external air source (e.g., compressed air). An air inlet 423 is provided on one side of the standard block holder 42 and communicates with the air hole 422, facilitating connection to an external air source.

[0043] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0044] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0045] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in orders other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatus.

[0046] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of this application.

Claims

1. A thickness gauge, characterized in that: It includes a thickness measurement module, a driving device and a strip guiding device. Among them, the thickness measurement module includes a thickness measurement frame, a first thickness measurement head and a second thickness measurement head. A material passing through groove is provided on the thickness measurement frame. The first thickness measurement head and the second thickness measurement head are installed on one side of the thickness measurement frame. Before thickness measurement, the first thickness measurement head is located on the side of the material, and the second thickness measurement head is located in the middle of the material; the driving device is arranged below the thickness measurement module and is used to drive the thickness measurement frame to simultaneously drive the first thickness measurement head and the second thickness measurement head to detect the thickness of the material passing through the material passing through groove; the strip guiding device is arranged on the side of the thickness measurement module and is used to flatten the material.

2. A thickness gauge according to claim 1, characterized in that: The thickness measurement frame is in a shape of a rectangle with a hole in the middle.

3. A thickness gauge according to any one of claims 1 or 2, characterized in that: At least one protective part is further provided on the thickness measurement frame. The protective part horizontally spans the material passing through groove in the vertical direction. The upper end of the protective part is fixed above the material passing through groove, and the lower end of the protective part is fixed below the material passing through groove.

4. A thickness gauge according to claim 1, characterized in that: The strip guiding device includes a first guiding roller, a second guiding roller, a transmission gear and a transmission belt. The first guiding roller is arranged between two second guiding rollers. Transmission gears are connected to the ends of the two second guiding rollers. The second guiding rollers are synchronously rotated through the transmission belt in cooperation with the transmission gears.

5. A thickness gauge according to claim 4, characterized in that: The first guiding roller is located below the second guiding roller.

6. A thickness gauge according to claim 1, characterized in that: The strip guiding device further includes a standard block placing device. The standard block placing device includes a standard block part, a standard block fixing frame, a standard block supporting plate and a standard block locking screw. A standard block placing groove is provided on the standard block fixing frame. Multiple standard block parts are respectively installed in the standard block placing groove through the standard block fixing frame. The standard block locking screw is used to lock the standard block part.

7. A thickness gauge according to claim 6, characterized in that: An air blowing hole is opened on one side wall of the standard block placing groove, and the air blowing hole blows air along the length direction of the standard block placing groove.

8. A thickness gauge according to claim 7, characterized in that: An air inlet head is arranged on one side of the standard block fixing frame. The air inlet head is communicated with the air blowing hole and is used to connect an external air source. It should be noted that the description of "the thickness measurement frame is in a shape of a rectangle with a hole in the middle" in is a more literal translation based on the original Chinese. It may be more accurately expressed as "The thickness measurement frame is in a rectangular shape with a through-hole in the middle" in a more standard English expression for patent texts. You can adjust it according to specific needs.

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