A full-width measuring device

Abstract

A full-width measuring device comprises a rack, a measuring unit, a calibration unit, the measuring unit comprises a plurality of first measuring modules, each of which is installed on the rack and has a spacing in the transverse direction with the adjacent first measuring module, the first radiation detection assembly has a first detection area, and the first detection area can be spliced into a continuous measurement interval along the transverse direction, the calibration unit comprises a guide assembly, a second measuring module, a calibration assembly, and a driving assembly, the guide assembly and the calibration assembly are both installed on the rack, the second measuring module is installed on the guide assembly and can move along the guide assembly, the calibration assembly is located in the movement stroke of the second measuring module, and the driving assembly is used to drive the second measuring module to move.

Description

Technical Field

[0001] This invention relates to the field of nondestructive testing, and more specifically to a membrane material measuring device. Background Technology

[0002] In the past decade or so, China's new energy lithium battery industry has developed rapidly, driving the development of many lithium battery-related production and testing industries. The basic components of a lithium battery are positive electrode, negative electrode, separator, electrolyte, and casing. Among them, the internal uniformity testing of the separator, positive and negative electrodes, and their substrate aluminum foil and copper foil cannot be separated from X-ray surface density measurement equipment. However, most lithium battery electrode or film surface density testing methods are currently local scanning methods. That is, when the electrode or film is produced, the measuring module moves back and forth along the width of the electrode, and the trajectory of the tested area is Z-shaped. Although this testing method can achieve a certain detection effect in most cases, since the area of ​​the tested area accounts for less than 5% of the total area of ​​the electrode or film, more than 90% of the electrodes are not actually tested, and there is still a certain risk of missed detection. Utility Model Content

[0003] This application provides a full-width measurement device that can not only reduce the risk of missed detections but also reduce the interference of the calibration process on the device.

[0004] A full-width measurement device includes: a frame, a measurement unit, and a calibration unit; the measurement unit includes several first measurement modules, all of which are mounted on the frame, and adjacent first measurement modules are spaced apart in the lateral direction; each first measurement module includes a first radiation generating component and a first radiation detecting component, which are arranged opposite to each other; the first radiation detecting component has a first detection area, which can be spliced ​​together in the lateral direction to form a continuous measurement interval; the calibration unit includes a guide component, a second measurement module, a calibration component, and a drive component; the second measurement module includes a second radiation generating component and a second radiation detecting component, which are arranged opposite to each other, and the performance parameters of the second radiation generating component and the second radiation detecting component are the same as those of the first radiation generating component; both the guide component and the calibration component are mounted on the frame, the second measurement module is mounted on the guide component and can move along the guide component, the calibration component is located within the movement stroke of the second measurement module, and the drive component is used to drive the second measurement module to move.

[0005] In this scheme, several first detection areas can be spliced ​​together in the lateral direction to form a continuous measurement interval, enabling more comprehensive detection of the electrode and reducing the risk of missed detections. In addition, compared with the scheme of directly calibrating the first measurement module with calibration components, this scheme will not obstruct or interfere with the first measurement module during the calibration process, so that the first measurement module can continue to be in normal working condition. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of a full-width measuring device at a certain angle in one embodiment;

[0007] Figure 2 This is a schematic diagram of a full-width measuring device at a certain angle in one embodiment;

[0008] Figure 3 This is a schematic diagram of a full-width measuring device from a certain angle in one embodiment.

[0009] Explanation of reference numerals in the attached figures:

[0010] 10 racks,

[0011] 20 Measurement unit, 21 First measurement module, 211 First ray generating component, 212 First ray detection component;

[0012] 30 Calibration unit, 31 Guiding assembly, 32 Second measurement module, 321 Second radiation generating assembly, 322 Second radiation detection assembly, 33 Calibration assembly, 34 Drive assembly, 341 Drive motor, 342 Synchronous belt, 343 First synchronous pulley, 344 Second synchronous pulley, 345 First lead screw, 346 Second lead screw. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0014] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0015] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0016] In one embodiment, a full-width measurement device is provided, comprising: a frame 10, a measurement unit 20, and a calibration unit 30; the measurement unit 20 includes a plurality of first measurement modules 21, all of which are mounted on the frame 10, and adjacent first measurement modules 21 are spaced apart in the lateral direction; each first measurement module 21 includes a first ray generating component 211 and a first ray detecting component 212, the first ray generating component 211 and the first ray detecting component 212 being disposed opposite to each other; the first ray detecting component 212 has a first detection area, and the first detection area can be spliced ​​together in the lateral direction to form a continuous measurement interval, for example, there are four first detection areas. Although these four first measurement areas are not on the same straight line, each first detection area covers a certain length of measurement interval in the lateral direction. The measurement intervals covered by the four first detection areas are spliced ​​together in the lateral direction to form a continuous measurement interval. The calibration unit 30 includes a guide component 31, a second measurement module 32, a calibration component 33, and a drive component 34. The second measurement module 32 includes a second radiation generating component 321 and a second radiation detection component 322. The second radiation generating component 321 and the second radiation detection component 322 are arranged opposite to each other. The performance parameters of the second radiation generating component 321 are the same as those of the first radiation generating component 211, and the performance parameters of the second radiation detection component 322 are the same as those of the first radiation generating component 211. The guide component 31 and the calibration component 33 are both mounted on the frame 10. The second measurement module 32 is mounted on the guide component 31 and can move along the guide component 31. The calibration component 33 is located within the moving stroke of the second measurement module 32. The drive component 34 is mounted on the frame 10 and is used to drive the second measurement module 32 to move. In this scheme, several first detection areas can be pieced together in the lateral direction to form a continuous measurement interval, enabling more comprehensive detection of the electrode and reducing the risk of missed detections. Furthermore, the second measurement module 32 can move along the guide component 31. When the second measurement module 32 moves to a position aligned laterally with a certain first measurement module 21, the measurement data of the second measurement module 32 can be compared with the measurement data of the first measurement module 21 to calibrate it. Additionally, the second measurement module 32 calibrates itself by measuring the calibration component 33 and comparing its measurement data with the actual parameters of the calibration component 33. Compared to the scheme of directly calibrating the first measurement module 21 using the calibration component 33, this scheme does not obstruct or interfere with the first measurement module 21 during the calibration process, allowing the first measurement module 21 to continuously operate normally.

[0017] In one embodiment, the drive assembly 34 includes a first lead screw 345, a second lead screw 346, and a drive motor 341. Both the first lead screw 345 and the second lead screw 346 are mounted on the frame 10. A first synchronous pulley 343 is mounted on the first lead screw 345, and a second synchronous pulley 344 is mounted on the second lead screw 346. The first synchronous pulley 343 and the second synchronous pulley 344 are connected by a synchronous belt 342. The drive motor 341 drives the first lead screw 345 and the second lead screw 346 to move synchronously via the synchronous belt 342. The first radiation generating assembly 211 is connected to the lead screw nut on the first lead screw 345, and the first radiation detection assembly 212 is connected to the lead screw nut on the second lead screw 346. In this solution, the drive motor 341 drives the first lead screw 345 and the second lead screw 346 to move synchronously via the synchronous belt 342, achieving synchronous movement of the first radiation generating assembly 211 and the first radiation detection assembly 212, while also reducing the number of drive motors 341 required to a certain extent.

[0018] In one embodiment, the plurality of first measuring modules 21 are arranged in two columns along the horizontal direction, and the first measuring modules 21 located in different columns are staggered in the horizontal direction. In this scheme, because the first measuring modules 21 are arranged in two columns along the horizontal direction in a staggered manner, it is beneficial to the splicing and combination of the first detection area, and also controls the space occupied in the vertical direction to a certain extent, thereby controlling the space occupied by the device. Specifically, the more columns there are, the larger the space occupied by the device in the vertical direction.

[0019] In one embodiment, the first detection area is rectangular. Designing the first detection area as rectangular in this solution makes it easier to combine and integrate with other first detection areas.

[0020] In one embodiment, the first ray generating component 211 has a first emission port, which is rectangular. Designing the first emission port of the first ray generating component 211 as rectangular in this solution makes it easier to combine the first ray generating component 211 with other first ray generating components 211.

[0021] In one embodiment, the first detection area has the same shape as the first emission port. This design can increase the proportion of rays emitted from the first emission port received by the first detection area.

[0022] In one embodiment, the calibration component 33 is located at one end of the guide component 31. In this design, the calibration component 33 will not interfere with the calibration of either the first measurement module 21 by the second measurement module 32.

[0023] In one embodiment, the calibration component 33 includes a tungsten carbide sheet. This design helps improve the accuracy of the calibration component 33 and its stability under different temperature conditions.

[0024] In one embodiment, the guide assembly 31 includes a dovetail guide rail. This solution can improve the anti-overturning moment of the guide assembly 31 while achieving the guiding function.

[0025] In one embodiment, the distance D between the first ray generating component 211 and the first ray detecting component 212 satisfies: 5mm≤D≤10mm, or 11mm≤D≤15mm, or 16mm≤D≤20mm, or 21mm≤D≤25mm, or 26mm≤D≤30mm, or 31mm≤D≤35mm, or 36mm≤D≤40mm, 41mm≤D≤45mm, or 46mm≤D≤50mm.

[0026] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. A full-width measuring device, characterized in that, include: frame, The measurement unit includes several first measurement modules, each of which is mounted on the frame and adjacent first measurement modules are spaced apart in the lateral direction. Each first measurement module includes a first ray generating component and a first ray detecting component, which are arranged opposite to each other. The first ray detecting component has a first detection area, which can be spliced ​​together in the lateral direction to form a continuous measurement interval. The calibration unit includes a guide assembly, a second measurement module, a calibration component, and a drive assembly. The second measurement module includes a second radiation generating component and a second radiation detecting component, which are disposed opposite to each other. The performance parameters of the second radiation generating component and the second radiation detecting component are the same as those of the first radiation generating component and the first radiation generating component. The guide assembly and the calibration component are both mounted on the frame. The second measurement module is mounted on the guide assembly and can move along the guide assembly. The calibration component is located within the movement stroke of the second measurement module. The drive assembly is used to drive the second measurement module to move.

2. The full-width measuring device as described in claim 1, characterized in that, The drive assembly includes a first lead screw, a second lead screw, and a drive motor. The first lead screw and the second lead screw are both mounted on the frame. A first synchronous pulley is mounted on the first lead screw, and a second synchronous pulley is mounted on the second lead screw. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt. The drive motor drives the first lead screw and the second lead screw to move synchronously through the synchronous belt. The first radiation generating assembly is connected to the lead screw nut on the first lead screw, and the first radiation detection assembly is connected to the lead screw nut on the second lead screw.

3. The full-width measuring device as described in claim 1, characterized in that, The plurality of first measurement modules are arranged in two columns along the horizontal direction, and the first measurement modules located in different columns are arranged alternately along the horizontal direction.

4. The full-width measuring device as described in claim 1, characterized in that, The first detection area is rectangular.

5. The full-width measuring device as described in claim 4, characterized in that, The first ray generating component has a first emission port, which is rectangular.

6. The full-width measuring device as described in claim 5, characterized in that, The first detection area has the same shape as the first emission port.

7. The full-width measuring device as described in claim 1, characterized in that, The calibration component is located at one end of the guide component.

8. The full-width measuring device as described in claim 1, characterized in that, The calibration assembly includes tungsten steel sheets.

9. The full-width measuring device as described in claim 1, characterized in that, The guide assembly includes a dovetail guide rail.

10. The full-width measuring device as described in any one of claims 1-9, characterized in that, The distance D between the first ray generating component and the first ray detecting component satisfies: 5mm≤D≤10mm, or 11mm≤D≤15mm, or 16mm≤D≤20mm, or 21mm≤D≤25mm, or 26mm≤D≤30mm, or 31mm≤D≤35mm, or 36mm≤D≤40mm, 41mm≤D≤45mm, or 46mm≤D≤50mm.

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