Flip unit and surface defect detection device for soft-pack lithium batteries

Abstract

The present invention discloses a flip unit and a surface defect detection device for a soft-pack lithium battery. The flip unit includes a front flip assembly and a rear flip assembly; the front flip assembly includes a vertical support plate, a first support member, a first receiving plate, a cylinder mounting plate, a telescopic cylinder, a first bearing seat, a first rotating shaft and a first motor drive; the rear flip assembly includes a second support member, a second receiving plate, a second bearing seat, a second rotating shaft and a second motor drive; the first rotating shaft drives the vertical support plate to rotate under the drive of the first motor, and flips the soft-pack lithium battery into a vertical state. Under the drive of the second motor, the second rotating shaft drives the second support member to rotate to realize the flipping of the soft-pack lithium battery. The present invention can realize the flipping and surface detection of the soft-pack lithium battery, filling the gap in the prior art. The flip unit has a simple structure and stable operation. The flipping process can avoid wear on the soft-pack lithium battery, and the production cost is low and easy to promote.

Description

Technical Field

[0001] The present invention relates to the field of new energy manufacturing, in particular to a flip unit of a soft-pack lithium battery, and also to a surface defect detection device for a soft-pack lithium battery. Background Art

[0002] With the continuous development of green energy, lithium batteries, as one of the most promising clean energy sources, shine in various industries. With its superior performance and flexible size, soft-pack lithium batteries are increasingly occupying a larger share of the market, and their output is also increasing year by year. However, if the aluminum-plastic film on the surface of the soft-pack battery is damaged, it will cause circulation disorder inside the battery, resulting in short circuits, fires and other dangerous situations. Therefore, there is a great potential market demand for identifying defects on the surface of the battery, eliminating and classifying defective products. With the rapid growth of the output of soft-pack lithium batteries, its quality inspection link has begun to face an efficiency crisis.

[0003] Zhong Yuzhou and others proposed a flipping device for lithium battery packaging equipment, which fixes the battery on a robotic arm through a tooling fixture, controls the robotic arm to flip it, places it on the subsequent functional module, and then releases the fixture to complete the flipping of the battery. It replaces multiple functional modules such as positioning and loading in the traditional battery packaging production line and simplifies the workflow.

[0004] Rong Tiannian and others proposed a flipping device for beverage packages, in which the battery is adsorbed onto an adsorption seat by a suction cup. The adsorption seat is hinged to a fixed axis, so that the adsorption seat and the beverage package can rotate around the fixed axis. After the flipping is completed, the suction cup is released to complete the flipping of the beverage package, replacing the traditional manual placement.

[0005] In the above scheme, the main objects are shell batteries and beverage packages. In order to ensure that the batteries do not fall during the flipping process, the batteries must be clamped or held at all times. The force is not easy to control. Since the aluminum-plastic film is easy to wear, it is not suitable for objects with aluminum-plastic film as the surface. The method of clamping or adsorption by mechanical mechanism is very easy to cause secondary wear to it, thus making the object a defective product. On the other hand, this type of flipping device has high precision requirements and requires the use of equipment such as a robotic arm, so the cost is relatively high. Summary of the invention

[0006] The purpose of the present invention is to provide a flip unit for a soft-pack lithium battery and a surface defect detection device for a soft-pack lithium battery.

[0007] To achieve the above-mentioned purpose, the technical solution of the present invention is: a flip unit of a soft-pack lithium battery, comprising a front flip assembly and a rear flip assembly;

[0008] The front flip assembly includes a vertical support plate, a first support member is provided at the upper end of the side surface of the vertical support plate, the first support member is horizontally arranged and perpendicular to the vertical support plate, the soft-pack lithium battery is horizontally placed on the first support member, a first receiving plate is provided at a position of the upper end surface of the first support member close to the vertical support plate, a cylinder mounting plate is provided at the lower end of the side surface of the vertical support plate, the cylinder mounting plate is parallel to the first support member, a telescopic cylinder with a telescopic rod parallel to the vertical support plate is installed on the upper end surface of the cylinder mounting plate, a first bearing seat is provided on the lower end surface of the back side of the vertical support plate, a first rotating shaft parallel to the first support member is fixed in the first bearing seat, and the first rotating shaft is driven by a first motor;

[0009] The rear flip assembly includes a second support member, the second support member is parallel to the vertical support plate, a second receiving plate is provided on one side of the lower end of the second support member, and a second bearing seat is also provided at the lower end of the second support member, a second rotating shaft parallel to the first rotating shaft is fixed in the second bearing seat, and the second rotating shaft is driven by a second motor;

[0010] The first rotating shaft, driven by the first motor, drives the vertical support plate to rotate axially around the rotating shaft through the first bearing seat, flips the horizontal soft-pack lithium battery into a vertical state and slides it onto the first receiving plate, the telescopic rod of the telescopic cylinder moves forward, passes through the first support member, applies a horizontal thrust to the soft-pack lithium battery, and pushes the soft-pack lithium battery onto the second receiving plate, and the second rotating shaft, driven by the second motor, drives the second support member to rotate in a direction away from the first support member through the second bearing seat, so that the vertical soft-pack lithium battery is flipped more than 90°, and the soft-pack lithium battery slides out under the action of its own gravity.

[0011] Furthermore, the vertical support plate and the cylinder mounting plate are designed as one piece.

[0012] Furthermore, the telescopic rod, the first support member and the second support member of the telescopic cylinder are all provided with a silicone layer on their surfaces.

[0013] Furthermore, a U-shaped plate is provided at the end of the telescopic rod of the telescopic cylinder to replace the telescopic rod to apply horizontal thrust to the soft-pack lithium battery, and a silicone layer is provided on the surface of the U-shaped plate.

[0014] A soft-pack lithium battery surface defect detection device comprises a flip unit and also includes:

[0015] A first conveying unit, used to input the soft-pack lithium battery placed on the front side into the flipping unit;

[0016] A first detection unit, located above the first transmission unit, has a first focal length and is used to capture a front image of the soft-pack lithium battery;

[0017] A second conveying unit is used to carry and output the soft-pack lithium battery that slides out from the flipping unit;

[0018] The second detection unit is located above the second transmission unit and has a second focal length for capturing an image of the back side of the soft-pack lithium battery;

[0019] A PLC controller includes a memory, wherein the memory is provided with control instructions for controlling a flipping unit to flip the soft-pack lithium battery;

[0020] The computer is respectively connected with the PLC controller, the first detection unit, the second detection unit, the first transmission unit and the second transmission unit to control the system.

[0021] Furthermore, the first detection unit includes a first camera and a first light source group arranged around the first camera; the second detection unit includes a second camera and a second light source group arranged around the second camera; the first light source group and the second light source perform low-angle illumination on the soft-pack lithium battery.

[0022] Furthermore, the first camera and the second camera are both industrial color cameras of model MV-CA050_20GC.

[0023] Furthermore, the first light source group and the second light source group are both four bar-shaped light sources, and specifically, bar-shaped flood-type LED light sources with a power of 18W and a DC24V power supply are selected.

[0024] The beneficial effects of the present invention are as follows: the present invention takes a soft-pack lithium battery as an object, proposes a flip unit for a soft-pack lithium battery and a soft-pack lithium battery surface defect detection device, which can realize the flipping and surface detection of the soft-pack lithium battery, filling the gap in the prior art. In addition, the flip unit of the present invention has a simple structure and stable operation, and the flipping process can avoid wear on the soft-pack lithium battery, and the production cost is low and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the flip unit of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the soft-pack lithium battery surface defect detection device of the present invention;

[0027] Figure 3 For the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings.

[0029] like Figure 1 As shown, a flip unit of a soft-pack lithium battery includes a front flip assembly 1 and a rear flip assembly 2;

[0030] The front flip assembly 1 includes a vertical support plate 11, a first support member 12 is provided at the upper end of the side surface of the vertical support plate 11, the first support member 12 is horizontally arranged and perpendicular to the vertical support plate 11, the soft-pack lithium battery is horizontally placed on the first support member 12, a first receiving plate 13 is provided at the upper end surface of the first support member 12 near the vertical support plate 11, a cylinder mounting plate 14 is provided at the lower end of the side surface of the vertical support plate 11, the cylinder mounting plate 14 is parallel to the first support member 12, a telescopic cylinder 15 with a telescopic rod parallel to the vertical support plate 11 is installed on the upper end surface of the cylinder mounting plate 14, a U-shaped plate 16 is provided at the end of the telescopic rod of the telescopic cylinder 15, a first bearing seat 17 is provided on the lower end surface of the back side of the vertical support plate 11, a first rotating shaft (not shown in the figure) parallel to the first support member 12 is fixed in the first bearing seat 17, and the first rotating shaft is driven by a first motor (not shown in the figure);

[0031] The rear flip assembly 2 includes a second support member 21, the second support member 21 is parallel to the vertical support plate 11, a second receiving plate 22 is provided at one side of the lower end of the second support member 21, and a second bearing seat 23 is also provided at the lower end of the second support member 21, a second rotating shaft (not shown in the figure) parallel to the first rotating shaft is fixed in the second bearing seat 23, and the second rotating shaft is driven by a second motor (not shown in the figure);

[0032] Driven by the first motor, the first rotating shaft drives the vertical support plate 11 to rotate axially around the rotating shaft through the first bearing seat 17, flips the horizontal soft-pack lithium battery into a vertical state and slides onto the first receiving plate 13, and the telescopic cylinder 15 pushes the U-shaped plate 16 forward, passes through the first support member 12 to apply a horizontal thrust to the soft-pack lithium battery, and pushes the soft-pack lithium battery onto the second receiving plate 22. Driven by the second motor, the second rotating shaft drives the second support member 21 to rotate away from the first support member through the second bearing seat 23, so that the vertical soft-pack lithium battery is flipped more than 90°, and the soft-pack lithium battery slides out under the action of its own gravity.

[0033] The surfaces of the telescopic rod of the telescopic cylinder 15 , the U-shaped plate 16 , the first support member 12 and the second support member 21 are all provided with a silicone layer.

[0034] like Figure 2 As shown, a soft-pack lithium battery surface defect detection device includes the above-mentioned flip unit 10, and also includes:

[0035] A first conveying unit 20, used to input the front-placed soft-pack lithium battery into the flipping unit;

[0036] The first detection unit 30 is located above the first transmission unit and has a first focal length for capturing a front image of the soft-pack lithium battery;

[0037] The second conveying unit 40 is used to carry and output the soft-pack lithium battery that slides out from the flipping unit;

[0038] The second detection unit 50 is located above the second transmission unit and has a second focal length for capturing an image of the back side of the soft-pack lithium battery;

[0039] The PLC controller 60 includes a memory, in which control instructions are provided to control the flipping unit to flip the soft-pack lithium battery;

[0040] The computer 70 is respectively connected to the PLC controller 60 , the first detection unit 30 , the second detection unit 50 , the first transmission unit 20 , and the second transmission unit 40 to perform system control.

[0041] like Figure 3 As shown, the first detection unit 30 includes a first camera 31 and a first light source group 32 arranged around the first camera 31; the second detection unit 50 has the same structure as the first detection unit, including a second camera and a second light source group arranged around the second camera; the first light source group 32 and the second light source perform low-angle illumination on the soft-pack lithium battery. The first camera 31 and the second camera both use industrial color cameras with model MV-CA050_20GC. The first light source group 32 and the second light source group are both four bar light sources, specifically, bar floodlight LED light sources with a power of 18W and DC24V power supply.

[0042] The present invention takes soft-pack lithium batteries as the object, proposes a flip unit for soft-pack lithium batteries and a soft-pack lithium battery surface defect detection device, which can realize the flipping and surface detection of soft-pack lithium batteries, filling the gap in the prior art. In addition, the flip unit of the present invention has a simple structure and stable operation, and the flipping process can avoid wear on the soft-pack lithium battery. Moreover, the production cost is low and it is easy to promote.

[0043] The described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of the present invention.

Claims

1. A flip unit for a soft-pack lithium battery, characterized in that: It includes a front flip assembly and a rear flip assembly; The front flip assembly includes a vertical support plate, a first support member is provided at the upper end of the side surface of the vertical support plate, the first support member is horizontally arranged and perpendicular to the vertical support plate, the soft-pack lithium battery is horizontally placed on the first support member, a first receiving plate is provided at a position of the upper end surface of the first support member close to the vertical support plate, a cylinder mounting plate is provided at the lower end of the side surface of the vertical support plate, the cylinder mounting plate is parallel to the first support member, a telescopic cylinder with a telescopic rod parallel to the vertical support plate is installed on the upper end surface of the cylinder mounting plate, a first bearing seat is provided on the lower end surface of the back side of the vertical support plate, a first rotating shaft parallel to the first support member is fixed in the first bearing seat, and the first rotating shaft is driven by a first motor; The rear flip assembly includes a second support member, the second support member is parallel to the vertical support plate, a second receiving plate is provided on one side of the lower end of the second support member, and a second bearing seat is also provided at the lower end of the second support member, a second rotating shaft parallel to the first rotating shaft is fixed in the second bearing seat, and the second rotating shaft is driven by a second motor; The first rotating shaft, driven by the first motor, drives the vertical support plate to rotate axially around the rotating shaft through the first bearing seat, flips the horizontal soft-pack lithium battery into a vertical state and slides onto the first receiving plate, the telescopic rod of the telescopic cylinder moves forward, passes through the first support member and applies a horizontal thrust to the soft-pack lithium battery, pushes the soft-pack lithium battery onto the second receiving plate, and driven by the second motor, the second rotating shaft drives the second support member to rotate in a direction away from the first support member through the second bearing seat, flips the vertical soft-pack lithium battery over 90°, and the soft-pack lithium battery slides out under the action of its own gravity; The vertical support plate and the cylinder mounting plate are designed as one piece.

2. A flip unit for a soft-pack lithium battery as claimed in claim 1, characterized in that: The telescopic rod, the first support member and the second support member of the telescopic cylinder are all provided with a silica gel layer on their surfaces.

3. A flip unit for a soft-pack lithium battery as claimed in claim 1, characterized in that: A U-shaped plate is provided at the end of the telescopic rod of the telescopic cylinder to replace the telescopic rod to apply horizontal thrust to the soft-pack lithium battery, and a silica gel layer is provided on the surface of the U-shaped plate.

4. A soft-pack lithium battery surface defect detection device, characterized in that: The turning unit according to claim 1 further comprises: A first conveying unit, used to input the soft-pack lithium battery placed on the front side into the flipping unit; A first detection unit, located above the first transmission unit, has a first focal length and is used to capture a front image of the soft-pack lithium battery; A second conveying unit is used to carry and output the soft-pack lithium battery that slides out from the flipping unit; The second detection unit is located above the second transmission unit and has a second focal length for capturing an image of the back side of the soft-pack lithium battery; A PLC controller includes a memory, wherein the memory is provided with control instructions for controlling a flipping unit to flip the soft-pack lithium battery; A computer is connected to the PLC controller, the first detection unit, the second detection unit, the first transmission unit and the second transmission unit respectively to control the system; The first detection unit includes a first camera and a first light source group arranged around the first camera; the second detection unit includes a second camera and a second light source group arranged around the second camera; the first light source group and the second light source perform low-angle illumination on the soft-pack lithium battery.

5. A soft-pack lithium battery surface defect detection device as claimed in claim 4, characterized in that: The first camera and the second camera are both industrial color cameras with model MV-CA050_20GC.

6. A soft-pack lithium battery surface defect detection device as claimed in claim 4, characterized in that: The first light source group and the second light source group are both four bar-shaped light sources, and specifically, bar-shaped flood-type LED light sources with a power of 18W and a DC24V power supply are selected.

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