Diaphragm wave edge detection apparatus and system

Abstract

The utility model relates to the detection technical field of battery main raw material discloses a kind of diaphragm wave edge detection device and system, the detection device includes horizontal datum seat, two groups of support frame, two groups of roller body, two groups of stretching component and laser positioning component, two groups of support frame are installed on horizontal datum seat in parallel and interval;Two groups of roller body are respectively arranged at the top of two support frames, for cooperation support diaphragm;Two groups of stretching component are respectively arranged at the side of two groups of roller body, and with the both ends of diaphragm are connected to be used for stretching diaphragm;Laser positioning component is installed on horizontal datum seat, laser positioning component is used to emit horizontal laser beam, and horizontal laser beam is tangent with the top surface of two groups of roller body, and laser positioning component cooperates measuring tool to measure the wave edge of diaphragm.The diaphragm wave edge detection device can reduce manpower cost and equipment cost, and ensure measurement consistency.

Description

Technical Field

[0001] This utility model relates to the field of detection technology for the main raw materials of batteries, and specifically to a membrane wavy edge detection device and system. Background Technology

[0002] As the "third electrode" of a lithium battery, the separator plays a crucial role in preventing internal short circuits by physically isolating the positive and negative electrodes. Simultaneously, its microporous structure provides lithium-ion transport channels, directly impacting the battery's internal resistance, rate performance, and cycle life. Under abnormal temperatures, its microporous structure experiences a pore-closing effect, blocking ion transport and becoming a critical defense against thermal runaway. Measuring the wavy edges of the separator is a core quality control step ensuring battery safety and assembly precision. Even minute wavy edges can cause alignment deviations during the winding / stacking process, increasing the risk of contact between the positive and negative electrodes and potentially triggering short circuits. Especially at high temperatures, these deformed edges are more prone to shrinkage, compromising the overall thermal stability of the separator, weakening its pore-closing protection function, and thus creating potential safety hazards.

[0003] Currently, there are two methods for detecting the wavy edge of the diaphragm. One method is manual measurement, which requires two people to pull the diaphragm apart and then a third person to take the measurement. This method results in high labor costs and poor measurement consistency. The other method uses specialized equipment with laser scanning, which saves manpower but is more expensive. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of poor consistency in measuring the wavy edge of the diaphragm and high labor costs in the existing technology, and to provide a diaphragm wavy edge detection device and system. This diaphragm wavy edge detection device can reduce labor costs and equipment costs, and ensure measurement consistency.

[0005] To achieve the above objectives, this utility model provides a diaphragm wavy edge detection device, comprising: Horizontal reference base; Two sets of support frames are installed parallel and spaced apart on the horizontal reference base; Two sets of rollers are respectively disposed on the top of the two support frames to support the diaphragm; Two sets of stretching components are respectively disposed on the sides of the two sets of rollers and connected to both ends of the diaphragm for stretching the diaphragm; A laser positioning component is installed on the horizontal reference base. The laser positioning component is used to emit a horizontal laser beam, and the horizontal laser beam is tangent to the top surface of the two sets of rollers. The laser positioning component is used in conjunction with a measuring tool to measure the wavy edge of the diaphragm.

[0006] Optionally, each set of the stretching components includes two counterweights, and the four counterweights are respectively clamped at the four corners of the diaphragm.

[0007] Optionally, the support frame is configured to be telescopic.

[0008] Optionally, the support frame includes: Two telescopic rods are provided, spaced apart along the length of the roller body, and the telescopic rods are vertically mounted on the horizontal reference base; A connecting rod, the two ends of which are respectively connected to the top of the two telescopic rods, is used to sleeve the roller body.

[0009] Optionally, the surface of the telescopic rod is provided with millimeter-level graduation lines.

[0010] Optionally, the laser positioning component includes: Telescopic support rod, installed on the horizontal reference base; A fixing clip is provided at the top of the telescopic support rod; A laser lamp is mounted on the fixing clamp, and the horizontal laser beam emitted by the laser lamp is spaced 2 mm apart from the side of the diaphragm in the horizontal direction.

[0011] Optionally, the horizontal reference base is further provided with a positioning mark point, which is located at the center of the distance between the two support frames.

[0012] Optionally, the surface of the roller is set as a polished surface.

[0013] The second aspect of this utility model provides a diaphragm wavy edge detection system, including a measuring tool and the aforementioned diaphragm wavy edge detection device.

[0014] Optionally, the measuring tool includes a ruler.

[0015] Through the above technical solution, the diaphragm wavy edge detection device provided by this utility model achieves diaphragm fixation and tension through the support of rollers and the stretching of the tensioning component. Then, a horizontal laser beam emitted by the laser positioning component is tangent to the top surfaces of the two sets of rollers, forming a horizontal reference line. At this time, the operator moves a measuring tool along the edge of the diaphragm and determines the value of the diaphragm wavy edge by observing the vertical distance between the horizontal laser beam and the diaphragm edge. Compared with the traditional alignment, fixing, and measurement process that requires multiple people to complete, this detection device reduces manpower input and improves detection efficiency. At the same time, it ensures good consistency of detection results between different batches and different operators, improving the reliability of the diaphragm wavy edge measurement data. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of a diaphragm wavy edge detection system provided by this utility model; Figure 2 yes Figure 1 The left view; Figure 3 yes Figure 1 Top view.

[0017] Explanation of reference numerals in the attached figures 1. Ruler; 2. Horizontal laser beam; 3. Laser light; 4. Fixing clamp; 5. Diaphragm; 6. Roller body; 7. Counterweight; 8. Telescopic rod; 9. Telescopic support rod; 10. Horizontal reference base. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangements and values ​​of the components described in these embodiments should be interpreted as merely exemplary and not as limiting.

[0020] It should be noted that, in the description of this utility model, unless otherwise stated, the terms "upper," "lower," "top," "top surface," etc., indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Furthermore, in this invention, "perpendicular" is not strictly perpendicular, but rather within the allowable error range. Similarly, "parallel" is not strictly parallel, but also within the allowable error range. Terms such as "including" or "comprising" indicate that the element preceding the word encompasses the element listed after it, but do not exclude the possibility of including other elements.

[0022] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0024] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0025] Combination Figure 1 , Figure 2 as well as Figure 3 As shown, this utility model provides a device for detecting the wavy edge of a diaphragm 5, including a horizontal reference base 10, two sets of support frames, two sets of rollers 6, two sets of tensioning components, and a laser positioning component. The two sets of support frames are installed parallel and spaced apart on the horizontal reference base 10. The two sets of rollers 6 are respectively disposed on the top of the two support frames to support the diaphragm 5. The two sets of tensioning components are respectively disposed on the sides of the two sets of rollers 6 and connected to both ends of the diaphragm 5 for stretching the diaphragm 5. The laser positioning component is installed on the horizontal reference base 10 and is used to emit a horizontal laser beam 2, which is tangent to the top surface of the two sets of rollers 6. The laser positioning component works with a measuring tool to measure the wavy edge of the diaphragm 5.

[0026] The horizontal reference base 10 in this utility model provides a reference for the setting of the support frame, roller 6 and laser positioning component. Its form is not limited, as long as its surface is highly flat. It can be a horizontal ground, a horizontal workbench, etc.

[0027] In some embodiments, the bottom of the horizontal reference base 10 is provided with adjustable feet, each foot having a height adjustment knob and a bubble level. By rotating the height adjustment knob, the levelness of the horizontal reference base 10 can be finely adjusted so that the bubble in the bubble level is centered, thereby ensuring that the entire device is level.

[0028] In some embodiments, the two sets of support frames adopt the same structural form, such as a frame structure.

[0029] The support frame can be fixedly installed on the horizontal reference base 10 with bolts. The installation position should ensure that the two sets of support frames are parallel and the spacing meets the requirements.

[0030] Furthermore, to accommodate the testing requirements of diaphragms 5 of different specifications, the support frame can be equipped with an adjustable slide rail structure in the horizontal direction in conjunction with the horizontal reference base 10. The slide rail can be a linear guide pair. By loosening the locking bolts on the slide rail, the support frame can be moved horizontally to adjust the interval between the two sets of support frames. After adjustment, tightening the locking bolts will fix the position of the support frame. This makes the installation of the support frame more flexible and convenient, and highly applicable.

[0031] The roller 6 in this invention can adopt any suitable cylindrical structure, as long as its surface maintains roundness and smoothness, such as a smooth stainless steel tube.

[0032] In some embodiments, the surface of the roller 6 is set as a polished surface. This configuration can reduce the frictional force when the diaphragm 5 slides on the roller 6, thus avoiding damage to the diaphragm 5.

[0033] The tensioning component in this invention can be any suitable structure, as long as it ensures that the tension applied to the diaphragm 5 keeps the diaphragm 5 taut, so as to more accurately measure the wavy edge of the diaphragm 5.

[0034] The horizontal laser beam 2 emitted by the laser positioning component in this invention needs to form a horizontal reference line parallel to the horizontal plane of the horizontal reference base 10 in order to improve the measurement accuracy.

[0035] In some embodiments, each set of tensioning components includes two counterweights 7, with the four counterweights 7 respectively clamped at the four corners of the diaphragm 5. The counterweights 7, as tensioning components, provide tension through their own weight; the magnitude of the tension is relatively stable and unaffected by other factors. Clamping the four counterweights 7 at the four corners of the diaphragm 5 allows for simultaneous application of tension from the four edges of the diaphragm 5, ensuring uniform stretching of the diaphragm 5. Furthermore, those skilled in the art can replace the counterweights 7 with different weights as needed to measure the wavy edges of the diaphragm 5 under multiple tension forces.

[0036] In some embodiments, the support frame is configured to be retractable.

[0037] Furthermore, the support frame in this utility model consists of two telescopic rods 8 and a connecting rod. Specifically, the two telescopic rods 8 are spaced apart along the length of the roller body 6, and the telescopic rods 8 are vertically installed on the horizontal reference base 10; the two ends of the connecting rod are respectively connected to the top of the two telescopic rods 8, and are used to sleeve the roller body 6.

[0038] Two telescopic rods 8 are vertically mounted on the horizontal reference base 10 and connected at their tops by a connecting rod, forming a stable frame structure. It is understood that the telescopic rods 8 can employ various common telescopic structures. For example, a sleeve-type telescopic structure can be used, consisting of two or more inner and outer sleeves of different diameters nested together. The height of the telescopic rods 8 is adjusted by using positioning holes on the outer sleeve and pop-out positioning pins on the inner sleeve.

[0039] Alternatively, a spiral telescopic structure can be used, where the telescopic adjustment is achieved by rotating the rod. Once adjusted to the correct position, the rod is secured with a locking nut to prevent loosening during use.

[0040] Furthermore, the surface of the telescopic rod 8 is provided with millimeter-level scale lines. The millimeter-level scale lines on the surface of the telescopic rod 8 provide a reference for the height adjustment of the telescopic rod 8, so that the two parallel and spaced telescopic rods 8 can be adjusted to the same height, thereby ensuring that the roller 6 sleeved on the connecting rod does not tilt and its top surface can remain parallel to the top surface of the horizontal reference seat 10.

[0041] In some embodiments, the laser positioning assembly includes a telescopic support rod 9, a fixing clamp 4, and a laser lamp 3. Specifically, the telescopic support rod 9 is mounted on a horizontal reference base 10; the fixing clamp 4 is located on the top of the telescopic support rod 9; the laser lamp 3 is mounted on the fixing clamp 4, and the horizontal distance between the horizontal laser beam 2 emitted by the laser lamp 3 and the side of the diaphragm 5 is set to 2 mm.

[0042] It is understandable that those skilled in the art can adjust the position of the telescopic support rod 9 according to actual needs. This position only needs to ensure that the laser lamp 3 will not interfere with the normal operation of the equipment or the operation of personnel during subsequent use; for example, it can be positioned on the side of either end of the diaphragm 5 along its length. The height of the telescopic support rod 9 is mainly adjusted according to the requirements of laser positioning. By fine-tuning the height of the telescopic support rod 9, the angle of the fixing clamp 4, and the angle of the laser lamp 3, the horizontal distance between the emitted horizontal laser beam 2 and the side of the diaphragm 5 in the horizontal direction is set to 2mm. This allows the operator to clearly observe the relative position of the horizontal laser beam 2 and the diaphragm 5, which is helpful for subsequent measurements.

[0043] The laser lamp 3 is fixed to the telescopic support rod 9 by the fixing clip 4, ensuring that the emitting end of the laser lamp 3 faces the side where the diaphragm 5 is located. Turn on the laser lamp 3, adjust the height of the telescopic support rod 9 so that the horizontal laser beam 2 emitted by the laser lamp 3 is tangent to the top surface of the two sets of rollers 6, and use a measuring tool to measure the distance between the horizontal laser beam 2 and the diaphragm 5 in the vertical direction.

[0044] In some embodiments, the horizontal reference base 10 is further provided with a positioning mark point, which is located at the center of the distance between the two retractable support frames.

[0045] The surveyor determines the wavy edge of the diaphragm 5 by measuring the maximum vertical distance between the diaphragm 5 and the horizontal laser beam 2. Theoretically, the maximum vertical distance between the diaphragm 5 and the horizontal laser beam 2 usually occurs in the middle of the diaphragm 5. Therefore, the positioning mark provides the surveyor with a fixed measurement position, and the measurement is performed directly on the position of the diaphragm 5 corresponding to this positioning mark.

[0046] It is understandable that those skilled in the art can also perform multi-point measurements within a certain range of the positioning markers as needed. By comparing the data from different measurement points, the wavy edge of the diaphragm 5 can be determined more accurately, avoiding errors caused by improper selection of measurement points. This not only saves measurement time but also improves the accuracy of the test results.

[0047] On the other hand, this utility model provides a diaphragm 5 wavy edge detection system, including a measuring tool and the aforementioned diaphragm 5 wavy edge detection device. The aforementioned detection device works in conjunction with the measuring tool to measure the wavy edge of the diaphragm 5.

[0048] In some embodiments, the measuring tool includes a ruler 1.

[0049] In summary, the working process and principle of this diaphragm 5 wavy edge detection device and system are as follows: First, two sets of telescopic support frames are fixed parallel and spaced apart on the horizontal reference base 10, and adjusted to the same height. After the smooth stainless steel tubes are fitted onto the connecting rods of the support frames, the diaphragm 5 is placed flat on the two stainless steel tubes. Then, counterweights 7 are clamped at the four corners where the diaphragm 5 falls, providing tension through its own weight to balance the force on the diaphragm 5. Then, those skilled in the art adjust the position of the telescopic support rod 9 according to actual needs. The laser lamp 3 is fixed to the telescopic support rod 9 through the fixing clamp 4. The laser lamp 3 is turned on, and the height of the telescopic support rod 9 is adjusted so that the horizontal laser beam 2 is tangent to the top surface of the two stainless steel tubes. Finally, the measuring personnel hold a ruler 1 and move it from one end of the diaphragm 5 to the other end. During the movement, the ruler 1 is kept vertical, and the maximum distance between the horizontal laser beam 2 and the edge of the diaphragm 5 is measured, which is the wavy edge of the diaphragm 5 to be measured.

[0050] The diaphragm 5 wavy edge detection device and system provided by this embodiment can conveniently and quickly measure the wavy edge of the diaphragm 5. The counterweight 7 provides a stable tension for the diaphragm 5, and the horizontal laser beam 2 provides a measurement benchmark for the measurement of the wavy edge of the diaphragm 5, thereby improving the consistency and accuracy of the measurement.

[0051] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A device for detecting a wave edge of a diaphragm, characterized by include: Horizontal reference base (10); Two sets of support frames are installed parallel and spaced apart on the horizontal reference base (10); Two sets of rollers (6) are respectively set on the top of the two support frames to support the diaphragm (5). Two sets of stretching components are respectively disposed on the sides of the two sets of rollers (6) and connected to both ends of the diaphragm (5) for stretching the diaphragm (5). A laser positioning component is installed on the horizontal reference base (10). The laser positioning component is used to emit a horizontal laser beam (2), and the horizontal laser beam (2) is tangent to the top surface of the two sets of rollers (6). The laser positioning component is used in conjunction with a measuring tool to measure the wavy edge of the diaphragm (5).

2. The diaphragm wavy edge detection device according to claim 1, characterized in that, Each set of the stretching components includes two counterweights (7), and the four counterweights (7) are respectively clamped at the four corners of the diaphragm (5).

3. The diaphragm wave crest detection device of claim 1, wherein The support frame is designed to be retractable.

4. The diaphragm wavy edge detection device according to claim 3, characterized in that, The support frame includes: Two telescopic rods (8) are spaced apart along the length extension direction of the roller body (6), and the telescopic rods (8) are vertically installed on the horizontal reference seat (10). A connecting rod, the two ends of which are respectively connected to the top of the two telescopic rods (8), is used to sleeve the roller body (6).

5. The diaphragm wavy edge detection device according to claim 4, characterized in that, The surface of the telescopic rod (8) is provided with millimeter-level scale lines.

6. The diaphragm wavy edge detection device according to claim 1, characterized in that, The laser positioning component includes: Telescopic support rod (9) is installed on the horizontal reference base (10); A fixing clip (4) is provided at the top of the telescopic support rod (9); A laser lamp (3) is mounted on the fixing clamp (4), and the horizontal laser beam (2) emitted by the laser lamp (3) is spaced 2 mm apart from the side horizontal direction of the diaphragm (5).

7. The diaphragm wave crest detection device of claim 1, wherein The horizontal reference base (10) is also provided with a positioning mark point, which is located at the center of the distance between the two support frames.

8. The diaphragm wave crest detection device of claim 1, wherein, The surface of the roller (6) is set as a polished surface.

9. A diaphragm wavy edge detection system, characterized in that, include: Measuring tools; The diaphragm (5) wavy edge detection device as described in any one of claims 1-8.

10. The septum wave crest detection system of claim 9, wherein, The measuring tool includes a ruler (1).

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