Lithium battery diaphragm thickness measuring instrument

Abstract

The utility model discloses a lithium battery diaphragm thickness measuring instrument, which relates to the technical field of lithium battery diaphragm detection, and comprises a base, two groups of mounting assemblies and a support cylinder used for adjusting the tension of a lithium battery diaphragm, and a material receiving barrel is arranged on the first group of mounting assemblies. During detection, the driving assembly drives the mounting cylinder connected with the driving assembly to rotate, the mounting cylinder drives the material receiving cylinder to rotate, the material receiving cylinder drives the battery diaphragm to move, and the movement of the battery diaphragm drives the material conveying cylinder to rotate, so that the battery diaphragm can continuously move from the material conveying cylinder to the material receiving cylinder through the supporting cylinder, and the automatic detection process is realized; the battery diaphragm is limited among the material conveying cylinder, the supporting cylinder and the material receiving cylinder during detection, and one side of the detected part of the battery diaphragm is always attached to the supporting cylinder, so that the stability of the battery diaphragm in the detection process is ensured, and the accuracy of a detection result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lithium battery diaphragm detection, and specifically relates to a lithium battery diaphragm thickness measuring instrument. BACKGROUND

[0002] Lithium battery diaphragm detection refers to a series of physical and chemical performance tests on diaphragm materials in lithium batteries to ensure that the diaphragm can meet the performance requirements of lithium batteries. The diaphragm is one of the key components in lithium batteries, and its main function is to separate the positive and negative electrodes to prevent short circuit caused by direct contact, and to allow lithium ions to pass through to realize the charging and discharging process of the battery.

[0003] The lithium battery diaphragm thickness measuring instrument is a device specially designed to measure the thickness of lithium battery diaphragm. Modern diaphragm thickness measuring instruments usually have automatic measurement function, which can quickly and accurately measure the thickness of the diaphragm, improve production efficiency, and the detection principle is generally based on optical principle, which determines the thickness by measuring the reflected or transmitted light of the diaphragm.

[0004] The existing technical solution has the following disadvantages: during the measurement of the thickness of the battery diaphragm, the motor and air conditioner may cause air vibration, and the measured diaphragm material usually has a certain elasticity, which is easily affected by air vibration during the measurement process, resulting in resonance phenomenon, leading to distortion of measurement data and affecting the measurement result. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a lithium battery diaphragm thickness measuring instrument to solve the technical problem that the diaphragm material usually has a certain elasticity, which is easily affected by air vibration during the measurement process, resulting in resonance phenomenon, leading to distortion of measurement data and affecting the measurement result.

[0006] The technical problem solved by the utility model can be achieved by the following technical solutions:

[0007] A lithium battery diaphragm thickness measuring instrument, comprising a base, the base is fixedly connected with a vertical plate on one side, the device further comprises an installation assembly and a support cylinder for adjusting the tension of the lithium battery diaphragm, the installation assembly is provided with two groups, a receiving cylinder is arranged on the first group of installation assemblies, a driving assembly is arranged on the vertical plate, the first group of installation assemblies are connected with the output end of the driving assembly, a material conveying cylinder is arranged on the second group of installation assemblies, the two groups of installation assemblies are arranged on one side of the support cylinder, a lifting assembly is arranged on the vertical plate, the output end of the lifting assembly is provided with a mounting bracket which is circumferentially arranged on one side of the support cylinder, and a plurality of measurement assemblies are circumferentially arranged on the mounting bracket.

[0008] As a further scheme of the utility model: each group of the measuring assembly includes at least two groups of guide rods, the guide rod extension direction is same with the installation cylinder extension direction, the guide rod is slidably fitted with laser thickness gauge, a group of the guide rod is provided with the transverse range that cooperates with laser thickness gauge.

[0009] As a further scheme of the utility model: each group of the installation assembly includes the installation cylinder that is rotationally connected with the vertical plate, the installation cylinder is screw connected with the limit sleeve ring at the end away from the vertical plate, the material feeding cylinder and the material collecting cylinder are respectively sleeved on the corresponding installation cylinder and are matched with the corresponding limit sleeve ring.

[0010] As a further scheme of the utility model: the vertical plate is fixedly connected with the display screen, and each group of the laser thickness gauge is electrically connected with the display screen.

[0011] As a further scheme of the utility model: the lifting assembly includes the electric telescopic rod, the electric telescopic rod is fixedly connected on the vertical plate, and the output end of the electric telescopic rod is fixedly connected with the mounting bracket.

[0012] As a further scheme of the utility model: the driving assembly includes the motor, and the output end of the motor is coaxially fixedly connected with the installation cylinder sleeved with the material collecting cylinder.

[0013] The utility model discloses beneficial effects:

[0014] 1, the utility model discloses when detecting, the driving assembly drives the installation cylinder connected with it to rotate, the installation cylinder drives the material collecting cylinder to rotate, and the material collecting cylinder drives the battery diaphragm to move, and the battery diaphragm movement will drive the material feeding cylinder to rotate, so that the battery diaphragm can constantly move from the material feeding cylinder to the material collecting cylinder through the supporting cylinder, thereby realizing the automatic detection process, and the part of the battery diaphragm detected is always attached to the supporting cylinder in the detection, thereby guaranteeing the stability of the battery diaphragm in the detection process, to guarantee the accuracy of the detection result.

[0015] 2, the utility model discloses when using, the position of all laser thickness gauges can be adjusted according to the transverse range, so that each group of laser thickness gauge output end is measured on the different position of lithium battery diaphragm, thereby expanding the sampling range, guaranteeing the accuracy of the sampling detection result, and facing the lithium battery diaphragm of different width, also can adjust the position of multiple laser thickness gauges, so that the device is compatible with the lithium battery diaphragm size, thereby expanding the scope of application, and it is more flexible to use. DRAWINGS

[0016] The utility model will be further described in connection with the drawings.

[0017] Fig. 1It is the whole structure schematic diagram of the utility model;

[0018] Fig. 2 It is the rear view structure schematic diagram of the utility model;

[0019] Fig. 3 It is the overhead structure schematic diagram of the utility model.

[0020] In the figure: 1, base; 2, vertical plate; 3, installation cylinder; 4, limit sleeve ring; 5, feed cylinder; 6, material collecting cylinder; 7, lifting assembly; 8, mounting bracket; 9, measuring assembly; 901, guide rod; 902, laser thickness gauge; 903, horizontal displacement range; 10, display screen; 11, driving assembly; 12, supporting cylinder. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. 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 fall within the scope of the utility model.

[0022] As Figs. 1-3 shown, a kind of lithium battery separator thickness gauge, including base 1, base 1 side is fixedly connected with vertical plate 2, vertical plate 2 is used to support and detect relevant assembly, the device further includes installation assembly and is used to adjust lithium battery separator tension supporting cylinder 12, installation assembly is provided with two groups, first group installation assembly is provided with material collecting cylinder 6, material collecting cylinder 6 is wound with the lithium battery separator that detection is completed, vertical plate 2 is provided with driving assembly 11, first group installation assembly is cooperatively connected with the output end of driving assembly 11, driving assembly 11 can drive first group installation assembly rotation, to drive material collecting cylinder 6 rotation, to facilitate the recovery of lithium battery separator, second group installation assembly is provided with feed cylinder 5, feed cylinder 5 is wound with the lithium battery separator that has not been detected, two groups of installation assemblies are all arranged in supporting cylinder 12 side, so that lithium battery separator is as close as possible to the surface of supporting cylinder 12, to facilitate the detection of battery separator, vertical plate 2 is provided with lifting assembly 7, lifting assembly 7 output end is provided with the mounting bracket 8 that is cooperatively fitted in supporting cylinder 12 side, mounting bracket 8 is provided with multiple measuring assemblies 9 around, lifting assembly 7 can drive mounting bracket 8 displacement, mounting bracket 8 can drive measuring assembly 9 displacement, to facilitate the placement of lithium battery separator, in detection, battery separator is limited between feed cylinder 5, supporting cylinder 12 and material collecting cylinder 6, and during detection, the side of the part of battery separator that is detected is always adhered to supporting cylinder 12, to guarantee the stability of battery separator in detection process, to guarantee the accuracy of detection result in turn.

[0023] In some specific embodiments, in order to realize the sampling detection of the lithium battery separator, each group of measuring components 9 includes two groups of guide rods 901, the guide rods 901 extend in the same direction as the mounting cylinder 3, and a laser thickness gauge 902 is slidably connected to the guide rods 901, the laser thickness gauge 902 is used to detect the thickness of the battery separator, and a transverse range 903 matched with the laser thickness gauge 902 is arranged on one group of guide rods 901. During use, the positions of all laser thickness gauges 902 can be adjusted by referring to the transverse range 903, so that the output ends of each group of laser thickness gauges 902 measure different positions on the lithium battery separator, thereby expanding the sampling range and ensuring the accuracy of the sampling detection results. At the same time, in the face of lithium battery separators of different widths, the positions of the multiple groups of laser thickness gauges 902 can also be adjusted so that the device is compatible with the size of the lithium battery separator, thereby expanding the application range and making the device more flexible to use.

[0024] In some specific embodiments, in order to realize the installation of the feeding cylinder 5 and the collecting cylinder 6, each group of mounting components includes a mounting cylinder 3 rotationally connected to the vertical plate 2, and a limiting sleeve ring 4 is threadedly connected to the end of each mounting cylinder 3 away from the vertical plate 2. The feeding cylinder 5 and the collecting cylinder 6 are respectively sleeved on the corresponding mounting cylinder 3 and matched with the corresponding limiting sleeve ring 4. The limiting sleeve ring 4 is responsible for limiting and fixing the feeding cylinder 5 and the collecting cylinder 6 on the corresponding mounting cylinder 3, thereby ensuring the stability of the device during the feeding and collecting processes.

[0025] In some specific embodiments, in order to visualize the detection results, a display screen 10 is fixedly connected to the vertical plate 2, and each group of laser thickness gauges 902 is electrically connected to the display screen 10. The detection results of each group of laser thickness gauges 902 are displayed on the display screen 10, and the staff can determine whether the thickness of the battery separator is qualified by the data on the display screen 10.

[0026] In some specific embodiments, in order to realize the lifting of the laser thickness gauge 902 and the rotation of the collecting cylinder 6, the lifting assembly 7 includes an electric telescopic rod fixedly connected to the vertical plate 2, and the output end of the electric telescopic rod is fixedly connected to the mounting bracket 8. The electric telescopic rod can drive the laser thickness gauge 902 to move closer to or farther away from the support cylinder 12, thereby facilitating the staff to wind the battery separator around the support cylinder 12. The driving assembly 11 includes a motor, and the output end of the motor is coaxially fixedly connected to the mounting cylinder 3 sleeved with the collecting cylinder 6. The motor can drive the collecting cylinder 6 to rotate, which can wind the battery separator to achieve the effect of collecting, and at the same time drive the feeding cylinder 5 to feed, so as to realize the entire detection process.

[0027] In order to facilitate the personnel in the art to understand the embodiments of the present scheme, the working principle of the embodiments of the present scheme will be described in conjunction with specific application scenarios:

[0028] In use, the receiving cylinder 6 is sleeved on the mounting cylinder 3 connected with the driving assembly 11, the material feeding cylinder 5 with the battery diaphragm wound thereon is sleeved on the other mounting cylinder 3, and the receiving cylinder 6 and the material feeding cylinder 5 are fixed on the corresponding mounting cylinder 3 through the limiting sleeve 4, one end of the battery diaphragm on the material feeding cylinder 5 is pulled to be connected with the receiving cylinder 6 through the supporting cylinder 12, and the battery diaphragm is placed.

[0029] In detection, the mounting frame 8 is driven to move downward by the lifting assembly 7, so that the laser thickness gauge 902 approaches the supporting cylinder 12, the position of the laser thickness gauge 902 is adjusted according to the transverse displacement range 903 on the guide rod 901, so that each group of laser thickness gauges 902 can measure different positions of the battery diaphragm, thereby expanding the sampling range and ensuring the accuracy of the sampling detection result, then the driving assembly 11 is started, the mounting cylinder 3 connected with the driving assembly 11 is driven to rotate, the receiving cylinder 6 is driven to rotate by the mounting cylinder 3, the battery diaphragm is driven to move by the receiving cylinder 6, the battery diaphragm is driven to rotate by the material feeding cylinder 5, so that the battery diaphragm can continuously move from the material feeding cylinder 5 to the receiving cylinder 6 through the supporting cylinder 12, thereby realizing the automatic detection process, and in detection, the battery diaphragm is limited between the material feeding cylinder 5, the supporting cylinder 12 and the receiving cylinder 6, one side of the part of the battery diaphragm detected is always attached to the supporting cylinder 12, thereby ensuring the stability of the battery diaphragm in the detection process, so as to ensure the accuracy of the detection result.

[0030] The above describes one embodiment of the utility model in detail, but the content described can only be the preferred embodiment of the utility model, and cannot be considered as limiting the implementation range of the utility model. Any equivalent change and improvement within the application range of the utility model should still belong to the patent coverage range of the utility model.

Claims

1. A lithium battery separator thickness measuring instrument comprising a base (1), one side of which is fixedly connected with a vertical plate (2), characterized in that Also include: The mounting assembly is provided with two groups, the first group of mounting assembly is provided with a material collecting cylinder (6), the upright plate (2) is provided with a driving assembly (11), the first group of mounting assembly is connected with the output end of the driving assembly (11), the second group of mounting assembly is provided with a material conveying cylinder (5), the two groups of mounting assembly are arranged on one side of the supporting cylinder (12), the upright plate (2) is provided with a lifting assembly (7), the output end of the lifting assembly (7) is provided with a mounting frame (8) which is circumferentially matched on one side of the supporting cylinder (12), a plurality of measuring assemblies (9) are circumferentially arranged on the mounting frame (8).

2. The lithium battery separator thickness gauge of claim 1, wherein, Each group of measuring assemblies (9) includes at least two groups of guide rods (901), the extension direction of the guide rod (901) is the same as the extension direction of the mounting cylinder (3), the guide rod (901) is slidably connected with a laser thickness gauge (902), and a group of guide rods (901) is provided with a transverse range (903) matched with the laser thickness gauge (902).

3. The lithium battery separator thickness gauge of claim 1, wherein, Each group of mounting assemblies includes a mounting cylinder (3) rotationally connected with the upright plate (2), each group of mounting cylinders (3) is threadedly connected with a limiting sleeve ring (4) at the end away from the upright plate (2), the material conveying cylinder (5) and the material collecting cylinder (6) are respectively sleeved on the corresponding mounting cylinder (3) and matched with the corresponding limiting sleeve ring (4).

4. The lithium battery separator thickness gauge of claim 2, wherein, The upright plate (2) is fixedly connected with a display screen (10), and each group of laser thickness gauges (902) is electrically connected with the display screen (10).

5. The lithium battery separator thickness gauge of claim 1, wherein, The lifting assembly (7) includes an electric telescopic rod, the electric telescopic rod is fixedly connected with the upright plate (2), and the output end of the electric telescopic rod is fixedly connected with the mounting frame (8).

6. The lithium battery separator thickness gauge of claim 1, wherein, The driving assembly (11) includes a motor, and the output end of the motor is coaxially fixedly connected with the mounting cylinder (3) sleeved with the material collecting cylinder (6).

Images