Device for screening surface defects of various types of batteries

Abstract

The invention relates to the field of lithium battery manufacturing equipment, in particular to a surface defect screening device for various types of batteries, which comprises a fixing device, an electric telescopic rod, an induction block, a balancing device, a rotating circular ring block, a driving device, a supporting plate, a speed reducing device and a collecting block, a power source is arranged in the induction block, the induction block is arranged on the upper wall face of the fixing device, the balancing device is rotatably arranged at the output end of the electric telescopic rod, the rotating circular ring block is connected to the driving device, the driving device comprises a screw rod, an elastic telescopic rod and a rotating block, and the screw rod is coaxially connected with the rotating circular ring block. The device can adapt to different shapes of battery appearances, and compared with a single cylindrical battery, the detection range is expanded.

Description

Technical Field

[0001] The invention relates to the field of lithium battery manufacturing equipment, and in particular to a device for screening surface defects of various types of batteries. Background Art

[0002] Lithium battery surface screening usually requires the use of a variety of specialized equipment to ensure the accuracy and efficiency of the inspection. One of the most commonly used equipment is the visual inspection system, which uses high-resolution cameras and image processing software to conduct a comprehensive appearance inspection of the battery surface and can quickly identify defects such as scratches, dents, and bubbles.

[0003] In order to collect side information of the inspection target, the existing lithium battery surface screening visual inspection device often uses a cylindrical driving block to drive the inspection target to rotate. This method is simple and fast, but it can only be used for cylindrical targets to be tested. It cannot be effectively used for targets whose shapes cannot be driven by the cylindrical driving block, so the inspection range is relatively limited.

[0004] The disturbance depth of the sludge washing device is limited, and the disturbance effect on the sludge at the bottom is insufficient. However, if the disturbance intensity is increased, the washing chamber will not be airtight enough, which may easily affect the surrounding water during operation. Summary of the invention

[0005] Therefore, the present invention is made in view of the above problems. The purpose of the present invention is to solve the problem that the existing lithium battery surface screening visual inspection device often uses a cylindrical drive block to drive the inspection target to rotate in order to collect the side information of the inspection target through the design of driving rotation at both ends. This method is simple and fast, but it can only be used for cylindrical targets to be tested. It cannot be effectively used for targets whose shapes cannot be driven by the cylindrical drive block, so the inspection range is relatively limited. The present invention achieves the above purpose through the following technical solutions:

[0006] A device for screening surface defects of various types of batteries comprises: a fixing device, an electric telescopic rod, a sensing block, a balancing device, a rotating ring block, a driving device, a support plate, a speed reducer and a collection block, wherein the electric telescopic rod is arranged on the upper wall of the fixing device, the sensing block has a built-in power supply and is arranged on the upper wall of the fixing device, the balancing device is rotatably arranged at the output end of the electric telescopic rod, the rotating ring block is connected to the driving device, the driving device comprises a spiral rod, an elastic telescopic rod and a rotating block, the spiral rod is coaxially connected to the rotating ring block, the rotating block is meshed with the spiral rod, the speed reducer is movably arranged in a slideway of the support plate, the speed reducer comprises a friction block, a protrusion and a conical block, the friction block is movably arranged in a slideway on the support plate, the protrusion is arranged at one end of the support plate, the conical block is arranged at the side end of the friction block, and the collection block is movably arranged in the slideway of the fixing device.

[0007] Preferably, the driving device further includes a circular plate and a cross support frame. The circular plate is fixed on one side of the rotating ring block. The cross support frame is arranged on the circular plate through a rotating bearing and is connected to the elastic telescopic rod. The elastic telescopic rod drives the cross support frame to move away from or close to the support plate.

[0008] Preferably, the side end of the cross support frame is a rough surface, which generates elastic resistance when contacting the protrusion of the deceleration device.

[0009] Preferably, the protrusion is made of a flexible material. One side of the protrusion is an arc surface, and the other side is an inclined sliding surface.

[0010] Preferably, the fixing device includes a fixing plate, a falling plate and a blocking block. The falling plate is rotatably arranged on the fixing plate through a connecting rod and is magnetically matched with the blocking block. An electromagnet is arranged inside the blocking block, and the induction block controls its magnetic state to drive the falling plate to rotate.

[0011] Preferably, the maximum rotation angle of the falling plate is degrees. When the electromagnet is powered off, the falling plate rotates downward under the action of gravity, so that the battery falls into the corresponding collection groove.

[0012] Preferably, the balancing device includes a balancing block, a collision block and a limiting rod. The balancing block is made of a transparent material and is provided with a collecting device inside. It is rotatably arranged at the output end of the electric telescopic rod. The collision block is arranged at the side end of the balancing block through a rotating bearing. When the collision block contacts the conical block, it drives the friction block to move.

[0013] Preferably, the surface of the collision block is smooth and magnetic. The collision block is magnetically matched with the friction block and the conical block.

[0014] Preferably, when the screw rod of the driving device passes through the rotating block, it drives the rotating ring block to rotate, so that the balancing block and the rotating ring block jointly clamp the battery and rotate synchronously.

[0015] In the present invention, the balancing block moves to drive the screw rod to pass through the rotating block, and the screw rod continuously rotates during this process to drive the rotating ring block to rotate together. The rotation of the rotating ring block will also drive the balancing block to rotate through the battery. During this process, the collecting block collects information on the side of the battery. At the same time, the collecting devices in the balancing block and the rotating ring block can collect information on both ends of the battery;

[0016] In the present invention, the battery is classified and screened through the speed difference between the balancing block and the rotating ring block. When the battery is normal, due to the speed difference between the balancing block and the rotating ring block, it loses support and falls into the external collection groove below the notch of the fixing plate; when the battery is abnormal, the induction block drives the falling plate to rotate downward, so that the battery on it falls into another external collection groove to complete the sorting and screening of different states of the battery;

[0017] By means of clamping and rotating at both ends, the present invention can adapt to the battery outer shapes of different shapes, expanding the detection range compared with a single cylindrical battery, and avoiding the problem that the existing visual inspection device for screening the surface of lithium batteries often drives the inspection target to rotate by means of a columnar driving block in order to collect the side information of the inspection target. This method is simple and fast, but it can only be applied to cylindrical inspection targets and cannot be effectively carried out for targets whose outer shapes cannot be driven by the columnar driving block. Therefore, the inspection range is relatively limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the fixing device and the speed reduction device of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the driving device of the present invention.

[0021] Among them, 100, fixing device; 110, fixing plate; 120, falling plate; 130, blocking block; 200, electric telescopic rod; 300, induction block; 400, balancing device; 410, balancing block; 420, collision block; 430, limiting rod; 500, rotating ring block; 600, driving device; 610, circular plate; 620, screw rod; 630, elastic telescopic rod; 640, rotating block; 650, cross support frame; 700, support plate; 800, speed reduction device; 810, friction block; 820, protrusion; 830, conical block; 900, acquisition block. DETAILED DESCRIPTION OF THE INVENTION

[0022] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that it is easy for those with ordinary skills in the art of the present invention to 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 describe the present invention more clearly, components not connected to the present invention will be omitted from the drawings.

[0023] As Figure 1 shown, a device for screening surface defects of various types of batteries includes: a fixing device 100, an electric telescopic rod 200, an induction block 300, a balancing device 400, a rotating ring block 500, a driving device 600, a support plate 700, a speed reduction device 800, and an acquisition block 900;

[0024] The electric telescopic rod 200 is arranged on the upper wall surface of the fixing device 100;

[0025] The induction block 300 is built-in with a power source and is set on the upper wall surface of the fixing device 100. During specific implementation, it can contact the balancing device 400, and after contact, it can adjust the magnetic force state of the electromagnet inside the blocking block 130, thereby driving the dropping plate 120 on the fixing device 100 to rotate.

[0026] The balancing device 400 is rotatably arranged at the top end of the inner rod of the electric telescopic rod 200.

[0027] The rotating ring block 500 is arranged on the driving device 600; the rotating ring block 500 is made of a transparent material and is internally provided with a collecting device, which can collect information on the side end of the battery.

[0028] The driving device 600 is arranged on the support plate 700;

[0029] The support plate 700 is arranged on the upper wall surface of the fixing device 100.

[0030] The deceleration device 800 is movably arranged in the slideway on the support plate 700;

[0031] The collecting block 900 is movably arranged in the slideway on the upper wall surface of the fixing device 100.

[0032] As Figures 2-3 shown, the fixing device 100 includes: a fixing plate 110, a dropping plate 120, and a blocking block 130;

[0033] The fixing plate 110 can be externally connected above the collecting groove during specific implementation, and it mainly plays a role in supporting other components.

[0034] The dropping plate 120 is rotatably arranged on the fixing plate 110 through a connecting rod, and the dropping plate 120 can attract the blocking block 130.

[0035] The blocking block 130 is arranged on the upper wall surface of the fixing device 100 and is connected to the induction block 300. An electromagnet is arranged inside the blocking block 130. During specific implementation, when the induction block 300 charges the blocking block 130, the electromagnet inside the blocking block 130 can generate a large magnetic force to adsorb the dropping plate 120. On the contrary, the dropping plate 120 will rotate downward under the action of its own gravity. The maximum angle of downward rotation of the dropping plate 120 is 45 degrees, which enables the dropping plate 120 to be re-adsorbed and rotated upward to be horizontal when the electromagnet has magnetism; when the induction block 300 is not impacted or squeezed, the electromagnet inside the blocking block 130 is in a state of adsorbing the dropping plate 120.

[0036] As Figure 2 shown, the balancing device 400 includes: a balancing block 410, a collision block 420, and a limiting rod 430;

[0037] The balance weight 410 is rotatably arranged at the output end of the electric telescopic rod 200; the balance weight 410 is made of a transparent material and is internally provided with a collection device, which can collect information on the side of the battery;

[0038] The collision block 420 is rotatably arranged at the side end of the balance weight 410 close to the friction block 810 through a rotating bearing. The surface of the collision block 420 is smooth and is weakly blocked by the protrusion 820. During specific implementation, it can collide with the conical block 830 and drive it to move; the collision block 420 has a magnetism that attracts the friction block 810 and the conical block 830;

[0039] The limiting rod 430 is arranged on the upper wall surface of the fixing device 100 through a connecting rod, and the limiting rod 430 mainly serves to limit the rotation of the collision block 420;

[0040] As Figure 3 shown, the driving device 600 includes: a circular plate 610, a screw rod 620, an elastic telescopic rod 630, a rotating block 640, and a cross support frame 650;

[0041] The circular plate 610 is arranged at the side end of the rotating ring block 500 close to the support plate 700;

[0042] The screw rod 620 is arranged at the central axis of the circular plate 610, and the two have the same rotation state;

[0043] The number of the elastic telescopic rods 630 is two and they are arranged on the cross support frame 650. The elastic telescopic rods 630 always have a driving force to drive the cross support frame 650 to move away from the support plate 700;

[0044] The rotating block 640 is arranged on the support plate 700 through a connecting rod and can be engaged with the screw rod 620;

[0045] The cross support frame 650 is arranged on the circular plate 610 through a rotating bearing; the side end of the cross support frame 650 is rough and can contact the protrusion 820, and when the cross support frame 650 moves towards the support plate 700, the elastic resistance between the side end of the cross support frame 650 and the protrusion 820 is small, and conversely, when the cross support frame 650 moves away from the support plate 700, the elastic resistance is large;

[0046] As Figure 2 shown, the deceleration device 800 includes: a friction block 810, a protrusion 820, and a conical block 830;

[0047] The friction block 810 is movably arranged in the slideway on the support plate 700;

[0048] More than 820 protrusions are arranged at one end of the support plate 700 close to the screw rod 620. The protrusions 820 are made of flexible material. The side close to the support plate 700 is an arc surface, and the other side is an inclined sliding surface of a triangular prism. When the cross support frame 650 moves away from the support plate 700, it will collide with the arc surface of the protrusion 820. At this time, when the cross support frame 650 moves, due to having to overcome the elastic resistance of the arc surface of the protrusion 820, it will be subject to a relatively large elastic resistance. On the contrary, the elastic resistance of the inclined sliding surface will be relatively small.

[0049] The conical block 830 is arranged at the side end of the friction block 810, and mainly plays a role in adjusting the position of the friction block 810.

[0050] The working principle of the present invention:

[0051] The operator places the battery to be tested on the falling plate 120 located between the balance block 410 and the rotating ring block 500, and then the electric telescopic rod 200 extends to drive the balance block 410 to move towards the rotating ring block 500 to clamp the battery. Then the balance block 410 continues to move, causing the rotating ring block 500 to move towards the support plate 700, and the battery also leaves the upper area of the falling plate 120. The movement of the balance block 410 drives the screw rod 620 to pass through the rotating block 640. During this process, the screw rod 620 continuously rotates to drive the rotating ring block 500 to rotate together. The rotation of the rotating ring block 500 drives the balance block 410 to rotate through the battery. During this process, the acquisition block 900 collects information on the side of the battery, and at the same time, the acquisition devices in the balance block 410 and the rotating ring block 500 can collect information on both ends of the battery.

[0052] After the battery acquisition is completed, if the external controller determines that the battery is normal based on the acquired information, the electric telescopic rod 200 will contract quickly to drive the balance block 410 to move away from the support plate 700 for reset.

[0053] At this time, the rotating ring block 500 on the other side of the battery cannot move away from the support plate 700 quickly together with the balance block 410 because the cross support frame 650 on it is elastically blocked by the arc surface of the protrusion 820. Then the battery loses support due to the speed difference between the balance block 410 and the rotating ring block 500, and then falls into the external collection tank below the notch of the fixed plate 110.

[0054] When the battery is abnormal, the electric telescopic rod 200 will also reset, but will keep clamping the battery together with the rotating ring block 500 until the battery is basically moved above the drop plate 120; then the electric telescopic rod 200 will quickly reset and drive the balance block 410 to collide with the induction block 300; after the induction block 300 is impacted and squeezed, the power supply in the induction block 300 will stop supplying power to the blocking block 130, so that the blocking block 130 will no longer adsorb the drop plate 120, and the drop plate 120 will rotate downward, and the batteries on it will fall into another external collection tank to complete the sorting and screening of batteries in different states;

[0055] During the collision between the balancing block 410 and the sensing block 300, the collision block 420 will be pressed into contact with the conical block 830, and the friction block 810 will be driven to move away from the balancing block 410 under the action of the inclined surface of the conical block 830. After the friction block 810 moves, the cross support frame 650 will be separated from the protrusion 820 and will no longer be blocked by it, so that the rotating ring block 500 can quickly return to the initial state and wait for the next detection.

[0056] By clamping and rotating at both ends, it can adapt to battery shapes of different shapes. Compared with a single cylindrical battery, the detection range is expanded, and the existing lithium battery surface screening visual inspection device is avoided. In order to collect side information of the inspection target, the inspection target is often driven to rotate by a cylindrical drive block. This method is simple and fast, but it can only be used for cylindrical targets to be tested. It cannot be effectively performed on targets whose shapes cannot be driven by the cylindrical drive block, so the inspection range is relatively limited.

Claims

1. A device for screening surface defects of various types of batteries, characterized in that: include: The invention relates to a fixing device (100), an electric telescopic rod (200), a sensing block (300), a balancing device (400), a rotating ring block (500), a driving device (600), a supporting plate (700), a speed reducing device (800) and a collecting block (900). The electric telescopic rod (200) is arranged on the upper wall surface of the fixing device (100). The sensing block (300) has a built-in power supply and is arranged on the upper wall surface of the fixing device (100). The balancing device (400) is rotatably arranged on the output end of the electric telescopic rod (200). The rotating ring block (500) is connected to the driving device (600). The driving device (600) comprises a spiral rod (620), an elastic telescopic rod (630), and a rotating ring block (500). 0) and a rotating block (640), the spiral rod (620) is coaxially connected to the rotating ring block (500), the rotating block (640) is meshed with the spiral rod (620), the reduction device (800) is movably arranged in the slideway of the support plate (700), the reduction device (800) comprises a friction block (810), a protrusion (820) and a conical block (830), the friction block (810) is movably arranged in the slideway on the support plate (700), the protrusion (820) is arranged at one end of the support plate (700), the conical block (830) is arranged at the side end of the friction block (810), and the collection block (900) is movably arranged in the slideway of the fixing device (100).

2. The device for screening surface defects of various types of batteries according to claim 1, characterized in that: The driving device (600) further comprises a circular plate (610) and a cross support frame (650), wherein the circular plate (610) is fixed to one side of the rotating circular ring block (500), and the cross support frame (650) is arranged on the circular plate (610) via a rotating bearing and is connected to the elastic telescopic rod (630), and the elastic telescopic rod (630) drives the cross support frame (650) to move away from or close to the support plate (700).

3. The device for screening surface defects of various types of batteries according to claim 2, characterized in that: The side end of the cross support frame (650) is a rough surface, which generates elastic resistance when in contact with the protrusion (820) of the speed reduction device (800).

4. The device for screening surface defects of various types of batteries according to claim 3, characterized in that: The protrusion (820) is made of a flexible material, one side of the protrusion (820) is a circular arc surface, and the other side of the protrusion (820) is an inclined sliding surface.

5. The device for screening surface defects of various types of batteries according to claim 1, characterized in that: The fixing device (100) comprises a fixing plate (110), a drop plate (120) and a blocking block (130); the drop plate (120) is rotatably arranged on the fixing plate (110) via a connecting rod and is magnetically matched with the blocking block (130); an electromagnet is arranged inside the blocking block (130); and the induction block (300) controls its magnetic state to drive the drop plate (120) to rotate.

6. The device for screening surface defects of various types of batteries according to claim 5, characterized in that: The maximum rotation angle of the drop plate (120) is 45 degrees. When the electromagnet is powered off, the drop plate (120) rotates downward under the action of gravity, so that the batteries fall into the corresponding collection tanks.

7. The device for screening surface defects of various types of batteries according to claim 1, characterized in that: The balancing device (400) comprises a balancing block (410), a collision block (420) and a limiting rod (430); the balancing block (410) is made of a transparent material and is provided with a collecting device inside, and is rotatably arranged at the output end of the electric telescopic rod (200); the collision block (420) is arranged at the side end of the balancing block (410) via a rotating bearing; and when the collision block (420) contacts the conical block (830), the friction block (810) is driven to move.

8. The device for screening surface defects of various types of batteries according to claim 7, characterized in that: The collision block (420) has a smooth surface and is magnetic, and the collision block (420) is magnetically matched with the friction block (810) and the conical block (830).

9. The device for screening surface defects of various types of batteries according to claim 1, characterized in that: When the spiral rod (620) of the driving device (600) passes through the rotating block (640), it drives the rotating annular block (500) to rotate, so that the balancing block (410) and the rotating annular block (500) jointly clamp the battery and rotate synchronously.

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