A full-width measuring device

Abstract

A full-width measuring device, comprising: a rack, a first measuring unit, a second measuring unit, and a reversing roller; the first measuring unit comprises a plurality of first measuring modules; the reversing roller is installed on the rack and located between the first measuring unit and the second measuring unit; there is an included angle between the first measuring direction and the second measuring direction; and the first detection area and the second detection area can be spliced into a continuous measurement interval along the transverse direction. The scheme can not only reduce the risk of missed detection but also reduce the interference of rays between different measuring units.

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 being produced, the measuring module moves back and forth along the transverse direction 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 radiation interference between different measurement units.

[0004] A full-width measurement device includes: a frame, a first measurement unit, a second measurement unit, and a reversing roller; the first 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, and each first measurement module has a first measurement direction; each first measurement module includes a first ray generating component and a first ray detecting component, which are arranged opposite to each other, and each first ray detecting component has a first detection area; the second measurement unit includes several second measurement modules, all of which are mounted on the frame, and adjacent second measurement modules are spaced apart in the lateral direction, and each second measurement module has a second measurement direction; each second measurement module includes a second ray generating component and a second ray detecting component, which are arranged opposite to each other, and each second ray detecting component has a second detection area; the reversing roller is mounted on the frame and located between the first and second measurement units; there is an angle between the first and second measurement directions, and the first and second detection areas can be spliced ​​together in the lateral direction to form a continuous measurement interval.

[0005] The proposed solution can not only reduce the risk of missed detections, but also reduce radiation interference between different measurement units. Attached Figure Description

[0006] Figure 1This 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 First measuring unit, 21 First measuring module, 211 First ray generating component, 212 First ray detection component;

[0012] 30 Second measurement unit, 31 Second measurement module, 311 Second ray generating component, 312 Second ray detection component;

[0013] 40 Calibration unit, 41 Guiding assembly, 42 Third measurement module, 421 Third X-ray generating assembly, 422 Third X-ray detection assembly, 43 Calibration assembly, 44 Drive assembly, 441 Drive motor, 442 Synchronous belt, 443 First synchronous pulley, 444 Second synchronous pulley, 445 First lead screw, 446 Second lead screw;

[0014] 50 reversing rollers. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] 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).

[0018] In one embodiment, reference Figures 1-3A full-width measuring device is provided, comprising: a frame 10, a first measuring unit 20, a second measuring unit 30, and a reversing roller 50; the first measuring unit 20 includes a plurality of first measuring modules 21, all of which are mounted on the frame 10, and adjacent first measuring modules 21 are spaced apart in the lateral direction, and each first measuring module 21 has a first measuring direction; each first measuring module 21 includes a first ray generating component 211 and a first ray detecting component 212, which are arranged opposite to each other, and the first ray detecting component 212 has a first detection area; the second measuring unit 30 includes a plurality of second measuring modules 31. The second measurement modules 31 are all mounted on the frame 10, and there is a gap between adjacent second measurement modules 31 in the lateral direction. The second measurement module 31 has a second measurement direction. The second measurement module 31 includes a second ray generating component 311 and a second ray detection component 311. The second ray generating component 311 and the second ray detection component 311 are arranged opposite to each other. The second ray detection component 311 has a second detection area. The reversing rollers 50 are all mounted on the frame 10 and are located between the first measurement unit 20 and the second measurement unit 30. There is an angle between the first measurement direction and the second measurement direction. The first detection area and the second detection area can be spliced ​​together in the lateral direction to form a continuous measurement interval. Both the first measuring unit 20 and the second measuring unit 30 can emit rays to detect the film material being tested. The film material being tested can first pass through the second measuring unit 30 and then through the first measuring unit 20. After flowing through the second measuring unit 30, the film material will be redirected by the reversing roller 50 and then flow through the first measuring unit 20. Since there is an angle between the first measuring direction and the second measuring direction, the distance between the rays emitted by the first measuring unit 20 and the rays emitted by the second measuring unit 30 at their ends is increased within a limited space, reducing mutual interference. The so-called continuous measuring interval is not necessarily continuous on the same straight line. It may also be multiple measuring intervals located on different straight lines. After splicing along the lateral direction, the interval continuity along the lateral direction can be achieved.

[0019] In one embodiment, reference Figure 1 and Figure 2The first measurement unit 20 includes several first measurement modules 21, all of which are mounted on the frame 10 and arranged laterally. For example, the several first measurement modules 21 are arranged in a straight line along the lateral direction, and each first measurement module 21 can output an independent measurement result. The second measurement unit 30 includes several second measurement modules 31, all of which are mounted on the frame 10 and arranged laterally. For example, the several second measurement modules 31 are arranged in a straight line along the lateral direction, and each second measurement module 31 can output an independent measurement result. In this way, by changing the number of first measurement modules 21 and second measurement modules 31, the testing needs of various film materials with different widths can be covered.

[0020] In one embodiment, reference Figure 1 and Figure 2 Several first measurement modules 21 are arranged at intervals along the horizontal direction. Specifically, several first measurement modules 21 are arranged on the same straight line along the horizontal direction and there is a gap between adjacent first measurement modules 21. Several second measurement modules 31 are arranged at intervals along the horizontal direction. Specifically, several first measurement modules 21 are arranged on the same straight line along the horizontal direction and there is a gap between adjacent first measurement modules 21. The first measurement modules 21 and the second measurement modules 31 are arranged alternately along the horizontal direction.

[0021] In one embodiment, reference Figures 1-3 The full-width measurement device also includes a calibration unit 40, which comprises a guide assembly 41, a third measurement module 42, a calibration component 43, and a drive assembly 44. The first measurement module 21, the second measurement module 31, and the third measurement module 42 are identical. The guide assembly 41 and the calibration component 43 are both mounted on the frame 10. Specifically, the guide assembly 41 is either a guide rail mounted on the frame 10 or a guide groove set on the frame 10. The calibration component 43 can be made of tungsten carbide. The third measurement module 42 is mounted on the guide assembly 41 and can move along the guide assembly 41. The calibration component 43 is located on the third guide assembly 41. Within the travel distance of 1, the drive component 44 is mounted on the frame 10 to drive the third measurement module 42 to move. When the third measurement module 42 moves to the width position of the corresponding first measurement module 21 or second measurement module 31, the measurement data of the third measurement module 42 is compared with the measurement data of the corresponding first measurement module 21 or second measurement module 31, thereby calibrating the corresponding first measurement module 21 or second measurement module 31. In addition, the third measurement module 42 calibrates itself by measuring the calibration component 43 and comparing the measurement data with the actual parameters of the calibration component 43.

[0022] In one embodiment, reference Figure 3The first ray generating component 211 and the first ray detection component 212 are both mounted on the rack 10. Specifically, the orientation of the emission port of the first ray generating component 211 can be considered as the first measurement direction. The second ray generating component 311 and the second ray detection component 312 are also mounted on the rack 10. Specifically, the orientation of the emission port of the second ray generating component 311 can be considered as the second measurement direction. The third measurement module 42 includes a third ray generating component 421 and a third ray detection component 422, both of which are mounted on the rack 10. The performance parameters of the first ray generating component 211, the second ray generating component 311, and the third ray generating component 421 are the same, as are the performance parameters of the first ray detection component 212, the second ray detection component 312, and the third ray detection component 422.

[0023] In one embodiment, reference Figures 1-3 The drive assembly 44 includes a first lead screw 445, a second lead screw 446, and a drive motor 441. A first synchronous pulley 443 is mounted on the first lead screw 445, and a second synchronous pulley 444 is mounted on the second lead screw 446. The first synchronous pulley 443 and the second synchronous pulley 444 are connected by a synchronous belt 442. The drive motor 441 is mounted on the frame 10 and drives the first lead screw 445 and the second lead screw 446 to move synchronously through the synchronous belt 442. The third ray generating assembly 421 is connected to the lead screw nut on the first lead screw 445, and the third ray detection assembly 422 is connected to the lead screw nut on the second lead screw 446.

[0024] In one embodiment, reference Figure 3 The emission ports of the first ray generating component 211, the second ray generating component 311, and the third ray generating component 421 are all rectangular. Because the emission ports of the first ray generating component 211 and the second ray generating component 311 are both rectangular, the ray beams emitted by both components are approximately square-pyramidal. This results in roughly square measurement areas covered by the ray beams. Square measurement areas are easier to combine and connect than other shapes, making it easier to connect ray generating components 211 to each other, to the second ray generating component 311, and to each other. The rectangular emission port of the third ray generating component 421 is consistent with that of the first and second ray generating components 211 for better calibration.

[0025] In one embodiment, reference Figure 3The receiving surfaces of the first ray detection component 212, the second ray detection component 312, and the third ray detection component 422 are all rectangular. Because rectangular receiving surfaces are easier to combine than other shapes, this design facilitates easier combination of the first ray detection components 212 with each other, the first ray detection component 212 with the second ray detection component 312, and the second ray detection component 312 with each other.

[0026] In one embodiment, reference Figure 2 The axis of the reversing roller 50 is parallel to the transverse direction.

[0027] In one embodiment, reference Figure 3 The angle between the first measurement direction and the second measurement direction is β, and satisfies the following conditions: 0° < β < 10° (specifically, β is 5°); or 10° ≤ β < 20° (specifically, β is 15°); or 20° ≤ β < 30° (specifically, β is 25°); or 30° ≤ β < 40° (specifically, β is 35°); or 40° ≤ β < 50° (specifically, β is 45°); or 50° ≤ β < 60° (specifically, β is 55°); or 60° ≤ β < 70° (specifically, β is 65°); or 70° ≤ β < 80° (specifically, β is 75°); or 80° ≤ β < 90° (specifically, β is 85°); or 90° ≤ β < 10 ... For the solid, β is 95°; or 100°≤β<110°, specifically, β is 105°; or 110°≤β<120°, specifically, β is 115°; or 110°≤β<120°, specifically, β is 125°; or 120°≤β<130°, specifically, β is 125°; or 130°≤β<140°, specifically, β is 135°; or 140°≤β<150°, specifically, β is 145°; or 150°≤β<160°, specifically, β is 155°; or 160°≤β<170°, specifically, β is 165°; or 170°≤β<180°, specifically, β is 175°.

[0028] 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 first measurement unit includes a plurality of first measurement modules, each of which is mounted on the frame and there is a gap between adjacent first measurement modules in the lateral direction. Each first measurement module has a first measurement 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. The second measurement unit includes several second measurement modules, each of which is mounted on the frame and has a lateral spacing between adjacent second measurement modules. Each second measurement module has a second measurement direction. Each second measurement module includes a second ray generating component and a second ray detecting component, which are arranged opposite to each other. The second ray detecting component has a second detection area. Reversing rollers, all of which are mounted on the frame and located between the first measuring unit and the second measuring unit; There is an angle between the first measurement direction and the second measurement direction, and the first detection area and the second detection area can be spliced ​​together in the lateral direction to form a continuous measurement interval.

2. The full-width measurement device of claim 1, wherein, The first measurement modules are all arranged in a horizontal direction, and the second measurement modules are all arranged in a horizontal direction.

3. The full-width measurement device of claim 2, wherein, Several first measurement modules are arranged at intervals along the lateral direction, and several second measurement modules are arranged at intervals along the lateral direction, with the first measurement modules and the second measurement modules arranged alternately along the lateral direction.

4. The full-width measurement device of claim 1, wherein, It also includes a calibration unit, which comprises a guide assembly, a third measurement module, a calibration component, and a drive assembly. Each third measurement module includes a third radiation generating component and a third radiation detecting component, which are arranged opposite to each other. The first, second, and third radiation generating components have the same performance parameters, as do the first, second, and third radiation detecting components. Both the guide assembly and the calibration assembly are mounted on the frame. The third measurement module is mounted on the guide assembly and can move along the guide assembly. The calibration component is located within the travel range of the third measurement module. The drive assembly is used to drive the third measurement module to move.

5. The full-width measurement device of claim 1, wherein, The first radiation generating component and the first radiation detection component are both mounted on the frame, and the second radiation generating component and the second radiation detection component are both mounted on the frame.

6. The full-width measurement device of claim 4, wherein, The drive assembly includes a first lead screw, a second lead screw, and a drive motor. 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 third ray generating assembly is connected with a screw nut on the first screw rod, and the third ray detecting assembly is connected with a screw nut on the second screw rod.

7. The full-width measurement device of claim 6, wherein, The emitting port of the first ray generating assembly is rectangular, the emitting port of the second ray generating assembly is rectangular, and the emitting port of the third ray generating assembly is rectangular.

8. The full-width measurement device of claim 6, wherein, The first detecting area is rectangular, and the second detecting area is rectangular.

9. The full-width measurement device of any of claims 1-8, wherein, The axis of the reversing roller is parallel to the transverse direction.

10. The full-width measurement device of claim 9, wherein, The included angle between the first measuring direction and the second measuring direction is β, and satisfies: 0°<β<10° or 10°≤β<20° or 20°≤β<30° or 30°≤β<40° or 40°≤β<50° or 50°≤β<60° or 60°≤β<70° or 70°≤β<80° or 80°≤β<90° or 90°≤β<100° or 100°≤β<110° or 110°≤β<120° or 110°≤β<120° or 120°≤β<130° or 130°≤β<140° or 140°≤β<150° or 150°≤β<160° or 160°≤β<170° or 170°≤β<180°.

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