Surface defect screening device for columnar batteries

Abstract

The invention relates to the field of lithium battery manufacturing equipment, in particular to a columnar battery surface defect screening device which is characterized in that a driving device is arranged on the upper wall face of a platform and comprises a motor and a first screw rod, the motor is fixed to the upper surface of the platform, and the first screw rod is coaxially connected to an output shaft of the motor; the moving device comprises a moving plate, a driving block and round rods, the first screw rod is meshed with the moving plate, the driving block capable of sliding up and down is arranged in the moving plate, the two round rods are arranged on the side wall of the driving block, the lower end of the moving plate is embedded in a sliding way of the platform, and the track is composed of a smooth track body and an inclined track body. And different moving directions of the round rod can drive the columnar batteries to fall through an opening of the guide plate I and a slideway of the guide plate III to finish collection.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery manufacturing equipment, and particularly to a surface defect screening device for cylindrical batteries. Background Art

[0002] The content of surface screening for cylindrical batteries mainly includes appearance inspection, dimensional measurement, cleanliness inspection, and marking inspection. Appearance inspection mainly detects whether there are defects such as scratches, dents, and bubbles on the battery surface through visual inspection or machine vision systems. Dimensional measurement is to measure the dimensions such as the length, width, and height of the battery through high-precision measuring instruments to ensure that they meet the design specifications.

[0003] In the existing surface screening devices for cylindrical batteries, during the specific operation process, information is often collected through high-definition camera devices, and then the collected information is judged to determine the state of the cylindrical batteries; since there may be flying dust on the surface of the screened batteries, the flying dust may block the lens when the high-definition camera device runs for a long time, which will lead to inaccurate information collection. Summary of the Invention

[0004] Therefore, the present invention is made in view of the above problems. The purpose of the present invention is to solve the problem that there may be flying dust on the surface of the screened batteries, so the flying dust may block the lens when the high-definition camera device runs for a long time, which will lead to inaccurate information collection through the design of a cleanable lens. The present invention achieves the above purpose through the following technical solutions:

[0005] A surface defect screening device for cylindrical batteries, comprising: a driving device is arranged on the upper wall surface of the platform. The driving device includes a motor and a first screw rod. The motor is fixed on the upper surface of the platform, and the first screw rod is coaxially connected to the output shaft of the motor. The moving device includes a moving plate, a driving block, and a round rod. The first screw rod meshes with the moving plate. The moving plate is internally provided with a driving block that can slide up and down. Two round rods are arranged on the side wall of the driving block. The lower end of the moving plate is embedded in the slideway of the platform. The track is composed of a smooth track and an inclined track. The smooth track is horizontally arranged on one side of the platform, and the inclined track is connected to the end of the smooth track and slopes downward. The regulating plate is hinged to the upper surface of the platform through a rotating shaft. The rotating device includes a rotating block, a second screw rod, an elastic telescopic rod, and a one-way rotating bearing. The rotating block is rotatably arranged on the surface of the regulating plate. The elastic telescopic rod is connected to one end of the second screw rod. The one-way rotating bearing is arranged at the meshing position of the rotating block and the second screw rod.

[0006] Preferably, the top round rod of the driving block is provided with a top rod extending forward, and the end of the top rod is provided with an arc-shaped guiding surface.

[0007] Preferably, the guiding device includes: a first guide plate, a second guide plate, a first cleaning block, a second cleaning block, a grinding block, a balance rod, and a third guide plate.

[0008] Preferably, the first guide plate is arranged on both sides of the second guide plate. An opening is formed in the first guide plate. The second guide plate is arranged on the upper wall surface of the regulation plate through a connecting rod. An opening is formed at the bottom of the second guide plate. The first cleaning block is arranged at the upper end of one side of the first guide plate. The second cleaning block is arranged at the upper end of the other side of the first guide plate. The grinding block is rotatably arranged in the opening of the second guide plate through a connecting rod. The number of balance rods is two, and they are rotatably arranged on the second guide plate. The third guide plate is arranged at the side end of the second guide plate, and an inclined slideway is arranged thereon.

[0009] Preferably, the surface of the grinding block is provided with friction lines, and its upper and lower end faces are respectively in contact with the rotating block and the cylindrical battery.

[0010] Preferably, the acquisition device includes a support rod, a first camera, and two second cameras. The support rod is vertically arranged on the platform. A first camera is arranged at the middle position of the support rod. Second cameras are arranged at both ends of the support rod.

[0011] Preferably, the first cleaning block is opposite to the bottom of the right second camera, and the vertical side of the second cleaning block is located above the left first camera.

[0012] Preferably, the telescopic direction of the elastic telescopic rod coincides with the axis of the second screw rod, and a compression spring for keeping the second screw rod in an extended trend is arranged inside it.

[0013] Preferably, a positioning block is arranged on the platform. The positioning block is located below the rotation path of the regulation plate, restricting the maximum rotation angle of the regulation plate to the horizontal state.

[0014] In the present invention, through the setting that the motor drives the round rod to move and collide with the second screw rod and drives it to move towards the elastic telescopic rod, the movement of the second screw rod drives the one-way rotating bearing to rotate to drive the rotating block to rotate, and the rotation of the rotating block drives the cylindrical battery to rotate so that each area on its side is collected by the first camera;

[0015] In the present invention, through the motor drive and rail guidance, different moving directions of the round rod can drive the cylindrical battery to complete the collection operation by falling through the opening of the first guide plate and the slideway of the third guide plate;

[0016] In the present invention, through the downward inclination setting of the first guide plate, the two second cameras are respectively in contact with the first cleaning block and the second cleaning block beside them to complete the cleaning of the second cameras; during the process of the round rod driving the cylindrical battery to move, the side end of the second cleaning block can also clean the first camera, and as the collection continues, the lens can also be cleaned orderly, which avoids the problem that dust may exist on the surface of the screened battery, and during the long-term operation of the high-definition camera device, the dust may block the lens, resulting in inaccurate information collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0018] Figure 2 This is a schematic structural diagram of the driving device and the track of the present invention.

[0019] Figure 3 This is a schematic structural diagram of the rotating device and the collecting device of the present invention.

[0020] Figure 4 This is a schematic structural diagram of the collecting device and the guiding device of the present invention.

[0021] Figure 5 This is a schematic structural diagram of the rotating device and the guiding device of the present invention.

[0022] Among them, 100, platform; 200, driving device; 210, motor; 220, first screw rod; 300, moving device; 310, moving plate; 320, driving block; 330, round rod; 340, ejector rod; 400, track; 410, smooth track; 420, inclined track; 500, regulating plate; 600, rotating device; 610, rotating block; 620, second screw rod; 630, elastic telescopic rod; 640, one-way rotating bearing; 650, positioning block; 700, guiding device; 710, first guide plate; 720, second guide plate; 730, first cleaning block; 740, second cleaning block; 750, grinding block; 760, balance rod; 770, third guide plate; 800, collecting device; 810, support rod; 820, first camera; 830, second camera; 900, cylindrical battery. Detailed implementation manners

[0023] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those of ordinary skill in the art in the prior art of the field to which the invention pertains can easily implement these embodiments. However, the present invention can also be implemented in various different forms, so the present invention is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components not connected to the present invention will be omitted from the drawings.

[0024] As Figure 1 shown, a surface defect screening device for a cylindrical battery includes: a platform 100, a driving device 200, a moving device 300, a track 400, a regulating plate 500, a rotating device 600, a guiding device 700, a collecting device 800, and a cylindrical battery 900;

[0025] The driving device 200 is arranged on the upper wall surface of the platform 100;

[0026] The moving device 300 is engaged with the driving device 200 and can move within the slideway on the upper wall surface of the platform 100 under its drive;

[0027] The track 400 is arranged on the upper wall surface of the platform 100 and is composed of a right-angled side and an inclined side;

[0028] The rotating shaft of the regulation plate 500 is rotatably arranged on the upper wall surface of the platform 100 through a connecting rod. A spiral spring is arranged between the rotating shaft of the regulation plate 500 and the connecting rod. Under the action of this spiral spring, the regulation plate 500 always has a driving force to rotate in the clockwise direction;

[0029] The rotating device 600 is rotatably arranged on the upper wall surface of the regulation plate 500 through a connecting rod;

[0030] The diversion device 700 is arranged on the upper wall surface of the regulation plate 500 through a connecting rod;

[0031] The acquisition device 800 is arranged on the upper wall surface of the platform 100;

[0032] As Figure 2 shown, the driving device 200 includes: a motor 210 and a first screw rod 220;

[0033] The motor 210 is arranged on the upper wall surface of the platform 100 through a connecting rod;

[0034] The first screw rod 220 is arranged on the driving shaft of the motor 210, and their rotation states are the same;

[0035] As Figure 3 shown, the moving device 300 includes: a moving plate 310, a driving block 320, and a round rod 330;

[0036] The moving plate 310 is engaged with the first screw rod 220 and can move in the slideway on the upper wall surface of the platform 100 under its drive;

[0037] The driving block 320 is arranged in the slideway of the moving plate 310 so as to be movable up and down;

[0038] The number of the round rods 330 is two, which are arranged up and down at the side end of the driving block 320. The two round rods 330 are always in contact with the track 400 and are located on the upper and lower sides of the track 400 to be regulated in height by it; A push rod 340 is arranged on the side of the upper round rod 330 close to the motor 210. Under the action of the push rod 340, the round rod 330 can quickly contact with the cylindrical battery 900;

[0039] As Figure 4 shown, the track 400 includes: a smooth track 410 and an inclined track 420;

[0040] One end of the smooth track 410 is arranged on the upper wall surface of the platform 100 through a connecting rod, and the other end is connected to the inclined track 420. The smooth track 410 is arranged parallel to the platform 100;

[0041] One end of the inclined track 420 is inclined and arranged on the upper wall surface of the platform 100, and the other end is connected to the smooth track 410;

[0042] As Figure 3-5 As shown in the figure, the rotating device 600 includes: a rotating block 610, a second screw rod 620, an elastic telescopic rod 630, a one-way rotating bearing 640, and a positioning block 650;

[0043] The rotating block 610 is rotatably arranged on the upper wall surface of the regulating plate 500 through a connecting rod;

[0044] The second screw rod 620 is arranged on the elastic telescopic rod 630 and can be engaged with the one-way rotating bearing 640;

[0045] The elastic telescopic rod 630 is arranged on the upper wall surface of the regulating plate 500 through a connecting rod, and a compression spring for keeping the second screw rod 620 in an extended trend is arranged inside the elastic telescopic rod 630;

[0046] The one-way rotating bearing 640 is arranged on the rotating block 610. In specific implementation, when the second screw rod 620 moves towards the elastic telescopic rod 630, it can drive the rotating block 610 to rotate by driving the one-way rotating bearing 640 to rotate, and it cannot drive the rotating block 610 to rotate in the reverse direction;

[0047] The positioning block 650 is arranged on the upper wall surface of the platform 100 and is located below the regulating plate 500. The positioning block 650 mainly plays a role in limiting the maximum rotation angle of the regulating plate 500. Under the action of the positioning block 650, when the regulating plate 500 rotates clockwise under the action of its spiral spring and abuts against the positioning block 650, it just remains horizontal;

[0048] As Figure 4-5 As shown in the figure, the guiding device 700 includes: a first guide plate 710, a second guide plate 720, a first cleaning block 730, a second cleaning block 740, an abrasive block 750, a balance rod 760, and a third guide plate 770;

[0049] The first guide plate 710 is arranged on both sides of the second guide plate 720, and an opening is formed on the first guide plate 710 for the columnar battery 900 to fall;

[0050] The second guide plate 720 is semi-circular and is arranged on the upper wall surface of the regulating plate 500 through a connecting rod, and an opening is formed on the second guide plate 720;

[0051] The first cleaning block 730 is arranged on Figure 5 the right first guide plate 710 in a certain state, and when the first guide plate 710 is in a horizontal state, the first cleaning block 730 is located below the right second camera 830;

[0052] The second cleaning block 740 is arranged onFigure 5 On the left guide plate 710 in the state, and when the guide plate 710 is in a horizontal state, the cleaning block 740 is located above the left camera 830; the cleaning block 740 is in a right-angled shape, and its vertical side can contact the camera 820 and clean it during specific implementation;

[0053] The abrasive block 750 is rotatably arranged in the opening of the guide plate 720 through a connecting rod. The upper and lower sides of the abrasive block 750 can contact the surfaces of the columnar battery 900 and the rotating block 610, mainly playing a role in transmission, and its surface is provided with abrasive patterns to increase friction;

[0054] The number of the balance bars 760 is two, and they are rotatably arranged on the guide plate 720; the two balance bars 760 are located on both sides of the inner surface of the guide plate 720, and play a role in assisting the rotation of the columnar battery 900 during specific implementation;

[0055] The guide plate 770 is arranged at the side end of the guide plate 720, and is provided with an inclined slideway to play a guiding role during the falling process of the columnar battery 900;

[0056] As Figure 3-4 shown, the acquisition device 800 includes: a support rod 810, a camera 820, and a camera 830;

[0057] The support rod 810 is vertically arranged on the upper wall surface of the platform 100;

[0058] The camera 820 is arranged on the support rod 810 and is located beside the side end of the columnar battery 900 to collect information about it;

[0059] The number of the cameras 830 is two, and they are arranged on the support rod 810 through connecting rods and are located at both ends of the columnar battery 900 to collect information about both ends of it.

[0060] The working principle of the present invention:

[0061] When an operator needs to perform surface screening on the columnar battery 900, the operator first places the columnar battery 900 on the guide plate 720, and then the motor 210 drives the screw rod 220 to rotate to drive the moving plate 310 to move towards the direction of the motor 210. The round rod 330 on the driving block 320 arranged in the moving plate 310 moves together. During the movement, the round rod 330 located below the track 400 will collide with the screw rod 620 and drive it to move towards the direction of the elastic telescopic rod 630. The movement of the screw rod 620 drives the one-way rotating bearing 640 to rotate to drive the rotating block 610 to rotate. The rotation of the rotating block 610 drives the abrasive block 750 to rotate, and further drives the columnar battery 900 to rotate so that each area on its side is collected by the camera 820;

[0062] After the rotation of the cylindrical battery 900 is completed and the side area and both end areas are collected, the classification of the cylindrical battery 900 can be carried out under the control of an external controller. When the collected result is that the cylindrical battery 900 has no problems, the motor 210 drives the first screw rod 220 to rotate, driving the moving plate 310 to move, and then controlling the upper round rod 330 to move towards the cylindrical battery 900 on the smooth track 410. The ejector rod 340 on the upper round rod 330 will collide with the cylindrical battery 900 and push the cylindrical battery 900 towards the guide plate three 770 below the first cleaning block 730 and finally slide down through the slideway on the guide plate three 770 and fall into an external collection tank.

[0063] When the collected result is that the cylindrical battery 900 has problems, the round rod 330 moves in the reverse direction and moves down along the inclined side of the inclined track 420. During the downward movement, under the own weight of the upper round rod 330, the guide plate one 710 at the bottom of the second cleaning block 740 located below the round rod 330 will drive the regulation plate 500 to tilt and rotate downward together. The regulation plate 500 tilts and rotates to drive the guide plate two 720 to tilt and rotate together. The cylindrical battery 900 located in the guide plate two 720 will move towards the opening of the guide plate one 710 at the bottom of the second cleaning block 740 under the action of its own gravity and slide down into an external collection tank to complete the classification of the cylindrical battery 900.

[0064] Driven by the motor 210 and guided by the track 400, different moving directions of the round rod 330 can drive the cylindrical battery 900 to fall through the opening of the guide plate one 710 and the slideway on the guide plate three 770 to complete the collection. At the same time, the downward tilt of the guide plate one 710 at the bottom of the second cleaning block 740 will drive the two second cameras 830 to disengage from the first cleaning block 730 and the second cleaning block 740 beside them respectively to complete the cleaning of the second cameras 830. As the collection continues, the lens can also be cleaned orderly, which avoids the problem that dust may exist on the surface of the screened battery and may block the lens during the long-term operation of the high-definition imaging device, resulting in inaccurate information collection.

Claims

1. A surface defect screening device for cylindrical batteries, characterized in that: include: The driving device (200) is arranged on the upper wall surface of the platform (100), and the driving device (200) comprises a motor (210) and a screw rod (220). The motor (210) is fixed on the upper surface of the platform (100), and the screw rod (220) is coaxially connected to the output shaft of the motor (210). The moving device (300) comprises a moving plate (310), a driving block (320), and a round rod (330). The screw rod (220) is meshed with the moving plate (310), and the moving plate (310) is provided with a driving block (320) that can slide up and down. Two round rods (330) are provided on the side wall of the driving block (320). The lower end of the moving plate (310) is embedded in the slideway of the platform (100), and the track (400) is formed by The invention is composed of a smooth track (410) and an inclined track (420), wherein the smooth track (410) is horizontally arranged on one side of the platform (100), and the inclined track (420) is connected to the end of the smooth track (410) and is inclined downward. The regulating plate (500) is hinged to the upper surface of the platform (100) through a rotating shaft. The rotating device (600) comprises a rotating block (610), a second spiral rod (620), an elastic telescopic rod (630) and a one-way rotating bearing (640). The rotating block (610) is rotatably arranged on the surface of the regulating plate (500), the elastic telescopic rod (630) is connected to one end of the second spiral rod (620), and the one-way rotating bearing (640) is arranged at the meshing position of the rotating block (610) and the second spiral rod (620).

2. The surface defect screening device for cylindrical batteries according to claim 1, characterized in that: The top round rod (330) of the driving block (320) is provided with a push rod (340) extending forward, and the end of the push rod (340) is provided with an arc-shaped guide surface.

3. The surface defect screening device for cylindrical batteries according to claim 1, characterized in that: The guide device (700) comprises: a guide plate 1 (710), a guide plate 2 (720), a cleaning block 1 (730), a cleaning block 2 (740), a sanding block (750), a balance bar (760), and a guide plate 3 (770).

4. The surface defect screening device for cylindrical batteries according to claim 3, characterized in that: The guide plate 1 (710) is arranged on both sides of the guide plate 2 (720), and an opening is provided on the guide plate 1 (710). The guide plate 2 (720) is arranged on the upper wall of the regulating plate (500) through a connecting rod, and an opening is provided at the bottom of the guide plate 2 (720). The cleaning block 1 (730) is arranged on the upper end of one side of the guide plate 1 (710), and the cleaning block 2 (740) is arranged on the upper end of the other side of the guide plate 1 (710). The sanding block (750) is rotatably arranged in the opening of the guide plate 2 (720) through a connecting rod. There are two balance rods (760) which are rotatably arranged on the guide plate 2 (720). The guide plate 3 (770) is arranged on the side end of the guide plate 2 (720), and an inclined slide is arranged on it.

5. The surface defect screening device for cylindrical batteries according to claim 4, characterized in that: The surface of the frosting block (750) is provided with friction lines, and the upper and lower end surfaces thereof are in contact with the rotating block (610) and the cylindrical battery (900) respectively.

6. The surface defect screening device for cylindrical batteries according to claim 4, characterized in that: The acquisition device (800) comprises a support rod (810), a camera 1 (820) and two cameras 2 (830); the support rod (810) is vertically arranged on the platform (100); the camera 1 (820) is arranged in the middle of the support rod (810); and cameras 2 (830) are arranged at both ends of the support rod (810).

7. The surface defect screening device for cylindrical batteries according to claim 6, characterized in that: The cleaning block 1 (730) is directly opposite to the bottom of the right camera 2 (830), and the vertical edge of the cleaning block 2 (740) is located at the upper end of the left camera 1 (820).

8. The surface defect screening device for cylindrical batteries according to claim 1, characterized in that: The telescopic direction of the elastic telescopic rod (630) coincides with the axis of the second spiral rod (620), and a compression spring is provided inside the elastic telescopic rod to keep the second spiral rod (620) extending outward.

9. The surface defect screening device for cylindrical batteries according to claim 1, characterized in that: The platform (100) is provided with a positioning block (650), which is located below the rotation path of the control plate (500) and limits the maximum rotation angle of the control plate (500) to a horizontal state.

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