Lithium battery diaphragm surface flaw detection equipment and use method thereof

Abstract

The invention discloses lithium battery diaphragm surface flaw detection equipment and a use method thereof, and belongs to the technical field of detection. Comprising a bottom plate, a driving device and a rotating device, the driving device is arranged at the top of the bottom plate, the rotating device is arranged at the top of the driving device, two transmission devices are arranged on the bottom plate, the driving device and the rotating device are located between the transmission devices, and the rotating device is detachably connected with a lighting part and a camera part. According to the lithium battery diaphragm surface flaw detection equipment and the use method thereof, the technical problem that the position of a camera of lithium battery detection equipment in the market is fixed, flaws on the diaphragm surface can only be detected from one angle, and the detection accuracy is reduced is solved.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and specifically to a lithium battery diaphragm surface defect detection device and a method for using the same. Background Art

[0002] With the rapid development of the lithium battery industry, the demand for lithium battery separators is increasing, and the quality of lithium battery separators is also more stringent. As a battery material with large capital expenditure and relatively high technical threshold, the market growth rate of separator materials is much lower than the growth rate of shipments, and product prices are falling. Lithium battery separator companies must improve quality and efficiency, save money and reduce costs to ensure profits. Many manufacturers have chosen lithium battery separator defect detection equipment.

[0003] At present, the position of the camera of lithium battery inspection equipment on the market is fixed, and the defects on the surface of the diaphragm can only be detected from a single angle, thereby reducing the accuracy of the detection. Therefore, it is necessary to provide a lithium battery diaphragm surface defect detection device and its use method to solve the above problems. Summary of the invention

[0004] Based on the above problems existing in the prior art, the purpose of the present application is to provide a lithium battery diaphragm surface defect detection device and a method of using the same to solve the problems raised in the above background technology.

[0005] The technical solution adopted by the present application to solve the technical problem is: a lithium battery diaphragm surface defect detection device and a method of using the same, comprising a bottom plate, a driving device and a rotating device, wherein the driving device is arranged on the top of the bottom plate, the rotating device is arranged on the top of the driving device, two sets of transmission devices are arranged on the bottom plate, the driving device and the rotating device are located between the transmission devices, and the rotating device is detachably connected with a lighting component and a camera component;

[0006] The rotating device comprises a housing and a rotating ring, wherein the rotating ring is rotatably connected to the housing, and the housing is fixedly connected to the top of the mounting column;

[0007] A plurality of positioning holes are provided on the top surface of the rotating ring, and the angle between each positioning hole is 20 degrees with the center of the rotating ring as the center.

[0008] Furthermore, the transmission device includes a first transmission member and a second transmission member, the first transmission member and the second transmission member have the same shape and structure, the first transmission member includes two vertical plates, one end of the vertical plate is fixedly connected to the bottom plate, and a roller is connected to the vertical plates by a bearing.

[0009] Furthermore, the driving device includes a support and a mounting column, the mounting column is in front of the support, one end of the support is fixedly connected to the base plate, the top of the support is fixedly connected to a motor, one end of the motor is fixedly connected to a transmission shaft, the transmission shaft is connected to a bearing of the mounting column, a gear is fixedly connected to the transmission shaft, an opening is provided at the top end of one side of the mounting column, and the gear is located in the opening.

[0010] Furthermore, a placement groove is provided on the top of the shell, the size of the placement groove is consistent with the thickness of the rotating ring, and a notch is provided on one side of the shell, the notch is connected to the placement groove, the notch is located directly above the opening, and the notch is connected to the opening.

[0011] Furthermore, a plurality of grooves are provided on the outer surface of the rotating ring, the grooves are spaced at the same distance from each other and match the gears, and the teeth of the gears can be stuck in the grooves.

[0012] Furthermore, the lighting component includes a first connecting column, a lampshade and a light source, the first connecting column is detachably connected to the lampshade, and the light source is fixed in the lampshade.

[0013] Furthermore, one end of the first connecting column is threadedly connected to the positioning hole, and the other end of the first connecting column is fixedly connected with a plurality of protrusions. A connecting port is opened at one end of the lampshade, and the size of the connecting port is consistent with the positioning hole. The first connecting column can be inserted into the positioning hole, and the protrusions are made of elastic rubber material.

[0014] Furthermore, the camera element includes a second connecting post and a camera. The shape and structure of the second connecting post are the same as those of the first connecting post. One side of the camera is also provided with an interface with the same size as the connecting port.

[0015] Furthermore, the motor, light source, camera and control center are electrically connected.

[0016] Further, the following steps are included:

[0017] Step 1: Place the lithium battery separator on the first transmission member and the second transmission member;

[0018] Step 2: Install lighting components and camera components;

[0019] Step 3: Open the winding device and take a picture of the surface of the lithium battery separator being transported.

[0020] The beneficial effects of the present application are as follows: a lithium battery diaphragm surface defect detection device and a method of using the same are provided in the present application. A rotating ring is provided to connect a plurality of lighting components and camera components. The rotating ring is driven to rotate by gears at the same time, so that the lighting components and camera components can be rotated synchronously, and the diaphragm can be photographed 360 degrees without blind spots. This solves the technical problem that the position of the camera of the lithium battery detection equipment on the market is fixed, and the defects on the diaphragm surface can only be detected from a single angle, thereby reducing the detection accuracy.

[0021] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0023] In the attached picture:

[0024] Figure 1 It is an overall schematic diagram of this application;

[0025] Figure 2 A schematic diagram of the transmission assembly of this application;

[0026] Figure 3 A cross-sectional schematic diagram of the driving device of the present application;

[0027] Figure 4 A schematic diagram of the rotating device of the present application;

[0028] Figure 5 A schematic diagram of the housing of this application;

[0029] Figure 6 This is a schematic diagram of the rotating ring of the present application;

[0030] Figure 7 A schematic diagram of a lighting element of the present application;

[0031] Figure 8 A schematic cross-sectional view of the lighting element of the present application;

[0032] Fig. 9 A schematic diagram of a camera element for this application;

[0033] Fig.10 This is a schematic diagram of the additional lighting and camera components of this application;

[0034] Among them, the reference numerals in the figure are:

[0035] 1. Bottom plate;

[0036] 2. Transmission device; 21. First transmission member; 22. Second transmission member; 201. Vertical plate; 202. Roller;

[0037] 3. driving device; 301. support; 302. motor; 303. transmission shaft; 304. mounting column; 3041. opening; 305. gear;

[0038] 4. Rotating device; 401. Housing; 4011. Placement groove; 4012. Notch; 402. Rotating ring; 4021. Groove; 4022. Positioning hole;

[0039] 5. lighting component; 501. first connecting column; 5011. convex strip; 502. lampshade; 5021. connecting port; 503. light source;

[0040] 6. Camera element; 601. Second connecting column; 602. Camera. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0043] like Figure 1-10 As shown, the present application provides a technical solution: a lithium battery diaphragm surface defect detection device and a method of using the same, comprising a base plate 1, a driving device 3 and a rotating device 4, wherein the driving device 3 is arranged on the top of the base plate 1, and the rotating device 4 is arranged on the top of the driving device 3, and the rotating device 4 can be driven by the driving device 3 to rotate, and two sets of transmission devices 2 are arranged on the base plate 1, and the driving device 3 and the rotating device 4 are located between the transmission devices 2, and the rotating device 4 is detachably connected with a lighting component 5 and a camera component 6.

[0044] like Figure 2 As shown, the transmission device 2 includes a first transmission member 21 and a second transmission member 22. The first transmission member 21 and the second transmission member 22 have the same shape and structure. The first transmission member 21 includes two vertical plates 201. One end of the vertical plate 201 is fixedly connected to the bottom plate 1. A roller 202 is connected to the bearing between the vertical plates 201, and the battery diaphragm is transmitted through the roller 202.

[0045] like Figure 3 As shown, the driving device 3 includes a support 301 and a mounting column 304, the mounting column 304 is in front of the support 301, one end of the support 301 is fixedly connected to the base plate 1, the top of the support 301 is fixedly connected to a motor 302, one end of the motor 302 is fixedly connected to a transmission shaft 303, the motor 302 provides drive for the rotation of the transmission shaft 303, the transmission shaft 303 is connected to the bearing of the mounting column 304, and a gear 305 is fixedly connected to the transmission shaft 303.

[0046] An opening 3041 is formed at a top end of one side of the mounting post 304 , and the gear 305 is located in the opening 3041 .

[0047] like Figure 4 As shown, the rotating device 4 includes a housing 401 and a rotating ring 402 , the rotating ring 402 is rotatably connected to the housing 401 , and the housing 401 is fixedly connected to the top of the mounting column 304 .

[0048] like Figure 5 As shown, a placement groove 4011 is provided on the top of the shell 401, and the size of the placement groove 4011 is consistent with the thickness of the rotating ring 402. A notch 4012 is provided on one side of the shell 401, and the notch 4012 is connected to the placement groove 4011. The notch 4012 is located directly above the opening 3041, and the notch 4012 is connected to the opening 3041.

[0049] like Figure 6 As shown, a plurality of grooves 4021 are provided on the outer surface of the rotating ring 402, and the spacing distances between the grooves 4021 are the same and match those of the gear 305. The teeth of the gear 305 can be stuck in the grooves 4021. A plurality of positioning holes 4022 are provided on the top surface of the rotating ring 402, and the angle between each positioning hole 4022 is 20 degrees with the center of the rotating ring 402 as the center.

[0050] like Figure 7 As shown, the lighting component 5 includes a first connecting column 501 , a lampshade 502 and a light source 503 . The first connecting column 501 is detachably connected to the lampshade 502 , and the light source 503 is fixed in the lampshade 502 .

[0051] like Figure 8 As shown, one end of the first connecting column 501 is threadedly connected to the positioning hole 4022, and the other end of the first connecting column 501 is fixedly connected with a plurality of protrusions 5011. A connecting port 5021 is opened at one end of the lampshade 502, and the size of the connecting port 5021 is consistent with the positioning hole 4022. The first connecting column 501 can be inserted into the positioning hole 4022.

[0052] The convex strip 5011 is made of elastic rubber material.

[0053] like Fig. 9 As shown, the camera element 6 includes a second connecting column 601 and a camera 602. The shape and structure of the second connecting column 601 are the same as those of the first connecting column 501. One side of the camera 602 is also provided with an interface of the same size as the connecting port 5021 to facilitate connection with the second connecting column 601.

[0054] The motor 302, the light source 503, and the camera 602 are electrically connected to the control center.

[0055] Embodiment 1: Method for detecting the surface of the diaphragm by the device

[0056] Pull the lithium battery diaphragm out from the winding device and pull it upward so that the diaphragm passes over the first transmission member 21 and then passes through the hollow space in the outer shell 401. Place the battery diaphragm on the second transmission member 22 and wind it downward on the winding device. After starting the winding device, the diaphragm is transmitted along the first transmission member 21 and the second transmission member 22. At this time, the diaphragm is horizontal to the ground.

[0057] Select a lighting component 5, align the first connecting column 501 with the positioning hole 4022 and rotate it so that the first connecting column 501 is fixed on the rotating ring 402 through a threaded connection, and then insert the lampshade 502 into the other end of the first connecting column 501. Since the convex strip 5011 will generate friction on the lampshade 502, it is necessary to use a larger force to fix it. When the lampshade 502 is installed, press the middle of the first connecting column 501, and then rotate the lampshade 502 to adjust the irradiation angle of the light source 503 to the diaphragm. Then install the second connecting column 601 on the positioning hole 4022 in the same way, and adjust the angle of the camera 602 to align with the diaphragm.

[0058] The light source 503 and the camera 602 are turned on through the control center, and the diaphragm is presented on the control center through the camera 602. The winding device is turned on through the control center, and the diaphragm is continuously rolled off from the camera 602. After the camera 602 captures the image, the control center identifies the defects on the diaphragm.

[0059] Example 2: When inspecting the diaphragm, due to the problem of light and shooting angle, the defects on the diaphragm may not be fully displayed.

[0060] Specifically, Fig.10 As shown, a certain number of lighting elements 5 and camera elements 6 can be added to the positioning hole 4022, and the angle of the defect can be captured by aiming at the diaphragm to photograph the surface of the diaphragm.

[0061] Start the motor 302, the motor 302 drives the gear 305 to rotate, the gear 305 engages with the notch 4012, and drives the rotating ring 402 to rotate in the housing 401. At this time, the rotating ring 402 rotates around the battery diaphragm, and can shoot different positions of the diaphragm from multiple angles during the diaphragm transmission process, so as to capture defects that the camera 602 usually cannot capture at different points.

[0062] In summary, the device is provided with a rotating ring 402, which can connect several lighting components 5 and camera components 6. At the same time, the rotating ring 402 is driven to rotate by the gear 305, so that the lighting components 5 and the camera components 6 can be rotated synchronously, and the diaphragm can be photographed 360 degrees without blind spots, which solves the technical problem that the position of the camera of the lithium battery detection equipment on the market is fixed, and the defects on the surface of the diaphragm can only be detected from a single angle, thereby reducing the detection accuracy.

[0063] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lithium battery diaphragm surface defect detection device, comprising a base plate (1), a driving device (3) and a rotating device (4), characterized in that: The driving device (3) is arranged on the top of the base plate (1), the rotating device (4) is arranged on the top of the driving device (3), two sets of transmission devices (2) are arranged on the base plate (1), the driving device (3) and the rotating device (4) are located between the transmission devices (2), and the rotating device (4) is detachably connected with a lighting component (5) and a camera component (6); The rotating device (4) comprises a housing (401) and a rotating ring (402), wherein the rotating ring (402) is rotatably connected to the housing (401), and the housing (401) is fixedly connected to the top of the mounting column (304); A plurality of positioning holes (4022) are provided on the top surface of the rotating ring (402), and the angle between each positioning hole (4022) is 20 degrees with the center of the rotating ring (402) as the center.

2. The lithium battery separator surface defect detection device according to claim 1, characterized in that: The transmission device (2) comprises a first transmission member (21) and a second transmission member (22); the first transmission member (21) and the second transmission member (22) have the same shape and structure; the first transmission member (21) comprises two vertical plates (201); one end of the vertical plates (201) is fixedly connected to the bottom plate (1); and a roller (202) is bearing-connected between the vertical plates (201).

3. The lithium battery separator surface defect detection device according to claim 2, characterized in that: The driving device (3) comprises a support (301) and a mounting column (304), wherein the mounting column (304) is located in front of the support (301), one end of the support (301) is fixedly connected to the base plate (1), a motor (302) is fixedly connected to the top of the support (301), one end of the motor (302) is fixedly connected to a transmission shaft (303), the transmission shaft (303) is bearing-connected to the mounting column (304), a gear (305) is fixedly connected to the transmission shaft (303), an opening (3041) is provided at the top end of one side of the mounting column (304), and the gear (305) is located in the opening (3041).

4. The lithium battery separator surface defect detection device according to claim 3, characterized in that: A placement groove (4011) is provided on the top of the shell (401), and the size of the placement groove (4011) is consistent with the thickness of the rotating ring (402). A notch (4012) is provided on one side of the shell (401), and the notch (4012) is connected to the placement groove (4011). The notch (4012) is located directly above the opening (3041), and the notch (4012) is connected to the opening (3041).

5. The lithium battery separator surface defect detection device according to claim 4, characterized in that: The outer surface of the rotating ring (402) is provided with a plurality of grooves (4021), the grooves (4021) are spaced at the same distance from each other and match those of the gear (305), and the teeth of the gear (305) can be stuck in the grooves (4021).

6. A lithium battery separator surface defect detection device according to claim 5, characterized in that: The lighting component (5) comprises a first connecting column (501), a lampshade (502) and a light source (503); the first connecting column (501) is detachably connected to the lampshade (502); and the light source (503) is fixed in the lampshade (502).

7. A lithium battery separator surface defect detection device according to claim 6, characterized in that: One end of the first connecting column (501) is threadedly connected to the positioning hole (4022), and the other end of the first connecting column (501) is fixedly connected to a plurality of convex strips (5011). One end of the lampshade (502) is provided with a connecting port (5021), and the size of the connecting port (5021) is consistent with that of the positioning hole (4022). The first connecting column (501) can be inserted into the positioning hole (4022), and the convex strips (5011) are made of elastic rubber material.

8. The lithium battery separator surface defect detection device according to claim 7, characterized in that: The camera element (6) comprises a second connecting post (601) and a camera (602); the shape and structure of the second connecting post (601) are the same as those of the first connecting post (501); and one side of the camera (602) is also provided with an interface of the same size as the connecting port (5021).

9. A lithium battery separator surface defect detection device according to claim 8, characterized in that: The motor (302), the light source (503), and the camera (602) are electrically connected to a control center.

10. A method for using a lithium battery diaphragm surface defect detection device, using the lithium battery diaphragm surface defect detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: placing a lithium battery separator on the first transmission member (21) and the second transmission member (22); Step 2: Install the lighting component (5) and the camera component (6); Step 3: Open the winding device and take a picture of the surface of the transmitted lithium battery separator.

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