Automatic weighing equipment for pole piece

Abstract

The utility model discloses an automatic weighing device for pole pieces, which comprises a first control box and an adjacent second control box, the first control box is provided with a chain, the chain is provided with the pole pieces, the outer side of the first control box is provided with an encoder, the second control box is provided with a four-axis manipulator and an electronic scale, and the four-axis manipulator and the electronic scale are connected with the first control box. The four-axis manipulator takes the pole piece and weighs the pole piece through the electronic scale; according to the automatic weighing equipment for the pole piece, the pole piece can be adsorbed through the suction cup and placed on the electronic scale through the four-axis mechanical arm to be weighed, the overall automation degree is high, continuous circulating weighing is achieved in the whole process, the production efficiency can be greatly improved, and the automatic weighing equipment is suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece production, in particular to an automatic weighing device for pole pieces. Background Art

[0002] Battery electrodes are the core components of batteries, and their quality directly determines the performance and life of the battery cell. In the field of electric vehicles, improving the performance of battery electrodes can help improve the energy density of lithium-ion batteries, thereby increasing the cruising range of electric vehicles.

[0003] During the battery production process, battery electrodes generally need to be sorted by weight, that is, the positive and negative electrodes of the battery are weighed one by one. After weighing, the overweight or underweight electrodes are removed, and the electrodes with the required weight are collected.

[0004] However, in current production, electrodes are mostly weighed manually, with a low degree of automation, which affects overall work efficiency and results in unsatisfactory results. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and provide an automatic weighing device for pole pieces that can absorb the pole piece through a suction cup and place it on an electronic scale for weighing through a four-axis manipulator. The overall degree of automation is high, and the whole process is uninterrupted cyclic weighing, which can greatly improve production efficiency.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: an automatic weighing device for pole pieces, comprising a first control box and an adjacent second control box, the first control box is provided with a chain, the chain is provided with a pole piece, an encoder is provided on the outside of the first control box, the second control box is provided with a four-axis manipulator and an electronic scale, the four-axis manipulator takes the pole piece and weighs it by the electronic scale.

[0007] Preferably, the second control box is provided with a protective net surrounded on three sides, the protective net is provided with a touch screen on a side close to the first control box, and a lighthouse is provided on the top of the protective net.

[0008] Preferably, the four-axis manipulator includes a base, a first swing arm, a second swing arm and a lifting Z axis. The base is fixed on the surface of the second control box, one end of the first swing arm is movably connected to the base, and the other end is movably connected to the second swing arm. The screw rod vertically passes through the second swing arm and extends downward. The bottom end of the lifting Z axis is provided with a lower support, and two suction cups for adsorbing the pole pieces are provided below the lower support.

[0009] Preferably, the first swing arm and the second swing arm are both turned by servo motors.

[0010] Preferably, the lifting Z axis can be vertically lifted and lowered in the second swing arm, and when the lifting Z axis is vertically lifted and lowered, the lower support and the suction cup are lifted and lowered accordingly.

[0011] Preferably, a turnover platform is further provided on the surface of the second control box.

[0012] The utility model discloses an automatic weighing device for pole pieces, comprising a first control box and an adjacent second control box, wherein the first control box is provided with a chain, the chain is provided with a pole piece, an encoder is provided on the outer side of the first control box, and the second control box is provided with a four-axis manipulator and an electronic scale, wherein the four-axis manipulator takes the pole piece and weighs it by the electronic scale; compared with the prior art, the automatic weighing device for pole pieces has the function of being able to absorb the pole piece by a suction cup and place it on the electronic scale for weighing by the four-axis manipulator, with a high overall degree of automation and uninterrupted cyclic weighing throughout the entire process, which can greatly improve the beneficial effect of production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an automatic weighing device for pole pieces in this utility model. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the overall structure of an automatic weighing device for pole pieces in this utility model. Figure 2 .

[0015] Figure 3 The utility model is a schematic diagram of the internal structure of an automatic weighing device for pole pieces.

[0016] Figure 4 The utility model is a structural schematic diagram of a four-axis manipulator in an automatic weighing device for pole pieces.

[0017] In the figure: 1. First control box; 2. Encoder; 3. Pole piece; 4. Second control box; 41. Electronic scale; 42. Turnover platform; 5. Protective net; 51. Lighthouse; 52. Touch screen; 6. Four-axis manipulator; 61. Base; 62. First swing arm; 63. Second swing arm; 64. Screw; 65. Lower support; 7. Suction cup. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.

[0019] Please refer to Figure 1-4An automatic weighing device for pole pieces includes a first control box 1 and an adjacent second control box 4. The first control box 1 is provided with a chain (i.e., a conveyor line composed of chains), and a pole piece 3 is provided on the chain. An encoder 2 is provided on the outside of the first control box 1, and the second control box 4 is provided with a four-axis manipulator 6 and an electronic scale 41. The four-axis manipulator 6 takes the pole piece 3 and weighs it through the electronic scale 41. After weighing is completed, it is put back again by the four-axis manipulator 6.

[0020] A turnover platform 42 is further provided on the surface of the second control box 4 , and the pole pieces 3 after being weighed are first placed on the turnover platform 42 for turnover.

[0021] In the solution of the present invention, the pole piece 3 comes out of the slitting knife and automatically enters the chain for transportation. A photoelectric detector is provided on one side of the chain. The photoelectric detector detects the pole piece and then tracks the position of the pole piece 3 through the encoder 2; then the encoder 2 will track the position of the pole piece 3 and feed back the information to the four-axis manipulator 6. At this time, the four-axis manipulator 6 moves quickly and sucks the pole piece 3 through the suction cup 7; the sucked pole piece 3 is placed on the electronic scale 41 by the four-axis manipulator 6 for weighing. The weighed pole piece is first circulated on the turnover platform 42 and finally put back on the chain again; in this way, efficient and fast weighing of the pole piece can be achieved with a high degree of automation.

[0022] In this embodiment, the second control box 4 is provided with a protective net 5 surrounded on three sides. The protective net 5 is provided with a touch screen 52 on the side close to the first control box 1. The touch screen is used to control the equipment. A lighthouse 51 is provided on the top of the protective net 5. The lighthouse 51 is always on to serve as a warning to the surroundings.

[0023] Furthermore, the four-axis manipulator 6 includes a base 61, a first swing arm 62, a second swing arm 63 and a lifting Z-axis 64 (with threads), the base 61 is fixed to the surface of the second control box 4, one end of the first swing arm 62 is movably connected to the base 61, and the other end is movably connected to the second swing arm 63, the screw rod 64 vertically passes through the second swing arm 63 and extends downward, the bottom end of the lifting Z-axis 64 is provided with a lower support 65, and two suction cups 7 for adsorbing the pole piece 3 are provided below the lower support 65.

[0024] There are two suction cups 7 under the lower support 65, one of which is for taking and the other is for placing. When in use, the four-axis manipulator 6 first absorbs the electrode by taking the suction cup 7, and then places the absorbed electrode on the electronic scale 41, and then takes the suction cup to absorb the electrode on the electronic scale 41 and places it on the turnover platform 42; then the four-axis manipulator 6 again absorbs the electrode on the chain by taking the suction cup 7 and places it on the electronic scale 41. At this time, the four-axis manipulator 6 absorbs the electrode on the turnover platform 42 by placing the suction cup and puts it back on the chain; then the four-axis manipulator 6 absorbs the electrode on the electronic scale 41 and places it on the turnover platform 42, and the cycle continues.

[0025] That is to say, the two suction cups 7 have clear division of labor. One sucks the electrode from the chain and places it on the electronic scale, and the other sucks the electrode on the turnover platform 42 and places it back on the chain. During this period, the electrode circulates and transitions on the turnover platform 42, which can achieve continuous and uninterrupted weighing, greatly improving work efficiency.

[0026] In this embodiment, the suction cup 7 is a Bernoulli suction cup, which can achieve non-contact adsorption, which is beneficial to ensuring the surface quality of the electrode.

[0027] In the solution of the present utility model, the first swing arm 62 and the second swing arm 63 are both steered by servo motors, wherein a servo motor for controlling the rotation of the first swing arm 62 is provided in the base 61, and a servo motor for controlling its own rotation is provided in the second swing arm 63. The steering of the manipulator can be achieved through the internal servo motors.

[0028] The lifting Z-axis 64 can be lifted and lowered vertically in the second swing arm 63. When the lifting Z-axis 64 is lifted and lowered vertically, the lower support 65 and the suction cup 7 are lifted and lowered accordingly. Two motors for controlling the rotation of the lifting Z-axis 64 are also provided in the second swing arm 63. The two motors drive the lifting Z-axis 64 forward and reverse through built-in belts and pulleys to realize the vertical lifting of the lifting Z-axis 64, thereby facilitating the suction cup to take and place the pole piece. The four-axis manipulator in this embodiment is controlled by a program and has a relatively simple principle. The principle of the four-axis manipulator can be found in the patent with publication number CN208946171U, which will not be elaborated here.

[0029] When in use, the automatic weighing equipment for electrodes can absorb the electrodes through suction cups and place them on an electronic scale for weighing through a four-axis robot. After weighing, the electrodes are put back again through the suction cups and the four-axis robots. Such uninterrupted cycle weighing can greatly improve production efficiency.

[0030] Based on the above embodiment, the electronic scale has a weighing alarm function. When in use, the upper and lower limits of the pole piece weight are set according to actual needs. When the pole piece exceeds the set value, the electronic scale alarm marks once, which can improve the weighing accuracy.

[0031] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An automatic weighing device for pole pieces, comprising a first control box and an adjacent second control box, characterized in that: The first control box is provided with a chain, and a pole piece is provided on the chain. An encoder is provided on the outside of the first control box. The second control box is provided with a four-axis manipulator and an electronic scale. The four-axis manipulator takes the pole piece and weighs it using the electronic scale.

2. The automatic weighing device for pole pieces according to claim 1, characterized in that: The second control box is provided with a protective net surrounded on three sides. The protective net is provided with a touch screen on a side close to the first control box, and a lighthouse is provided on the top of the protective net.

3. The automatic weighing device for pole pieces according to claim 1 or 2, characterized in that: The four-axis robot includes a base, a first swing arm, a second swing arm and a lifting Z-axis. The base is fixed on the surface of the second control box. One end of the first swing arm is movably connected to the base, and the other end is movably connected to the second swing arm. The lifting Z-axis vertically passes through the second swing arm and extends downward. A lower support is provided at the bottom end of the lifting Z-axis, and two suction cups for adsorbing pole pieces are provided below the lower support.

4. The automatic weighing device for pole pieces according to claim 3, characterized in that: The first swing arm and the second swing arm are both turned by servo motors.

5. The automatic weighing device for pole pieces according to claim 4, characterized in that: The lifting Z axis can be vertically lifted and lowered in the second swing arm, and when the lifting Z axis is vertically lifted and lowered, the lower support and the suction cup are lifted and lowered accordingly.

6. The automatic weighing device for pole pieces according to claim 1, characterized in that: A turnover platform is also provided on the surface of the second control box.

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