Electrode sheet roll-pressing and cutting system and method

An electrode sheet roll-pressing and cutting method, comprising:

• outputting, by an encoder, a pulse signal to a detection mechanism and a programmable logic controller respectively when an electrode sheet in an electrode sheet roll-pressing and cutting system is conveyed in a first direction;
• shooting, by the detection mechanism, an image of the electrode sheet based on a frequency of the pulse signal;
• determining, by an upper computer, a defect region of the electrode sheet based on an N(th) image of the electrode sheet shot by the detection mechanism, wherein Nis a natural number;
• determining, by the upper computer, a response distance of a marking mechanism based on a position of the defect region in a target electrode sheet region, wherein the target electrode sheet region is an electrode sheet region shot in the N(th) image;
• determining, by the upper computer, the number S of pulses that the programmable logic controller needs to await based on the response distance and accuracy of the encoder, wherein S is a natural number;
• sending, by the upper computer, the number S of pulses to the programmable logic controller;
• sending, by the programmable logic controller, when determining that the S pulses have been awaited, a marking instruction to the marking mechanism;
• and
• marking, by the marking mechanism, the defect region of the electrode sheet based on the marking instruction;
• the image shot by the detection mechanism comprising a tab region image corresponding to a tab region;
• and the electrode sheet roll-pressing and cutting method further comprises:
• by the upper computer, identifying edges of the tab region image and determining the size of the tab region based on the edges.