Rolling And Slitting Integrated Machine

Product Feature

  • Rolling speed: 2-20rpm stepless speed change, pressure closed loop online adjustment
  • roll gap adjustment range: 0-2mm
  • roll gap adjustment accuracy: 1um
  • Thickness consistency after pole piece rolling: ≤ ± 2um (related to incoming materials)
  • maximum rolling force: 3000KN

Rolling and slitting integrated machine is an integrated equipment designed and manufactured by the functions of high-precision roller press and slitting machine.

Rolling and slitting integrated machine combines the rolling function with the slitting function, eliminating the need for the winding device of the rolling. The same reason, the cutting and unwinding device is eliminated, the operating staff is reduced, and the transmission chain is shortened. The product quality is stable, the loss is reduced, and the yield is improved.

The machine is suitable for continuous rolling and slitting process of positive and negative electrodes of various lithium batteries. It adopts constant pressure and limited gap rolling method to continuously roll continuous or gap coated battery pole pieces to increase the density of materials. After rolling, the pole piece is subjected to a slitting mechanism, and can be divided into a plurality of pieces and wound up separately. It consists of a constant tension unwinding mechanism, a roller press, a thickness measuring device, a slitting, a winding mechanism, an electronic control system, a hydraulic system, and a correcting device.

Roll speed: 2-20rpm variable speed adjustable, roller sewing machine self-locking; Roll gap adjustment range: 0-2mm; Roll gap adjustment precision: 1um.

Thickness consistency after plate rolling: ≤±2um (related to materials), maximum rolling force: 3000KN.

The trimming and dust removing mechanism is composed of a motor, an upper cutter, a lower cutter, a brush, a floating roller and a guide roller, which can be set in front of roller. The main function is to cut off the uncoated area and the edge convex part on both sides to prevent the coating part and the non-coated edge from being different in the rolling process, resulting in the broken belt; the cutter position is adjustable and the application range is wide. The dust on the brush cleaning strip is sucked away by the vacuum cleaner. 

The slitting is controlled by the automatic control system to control the tension of the pole piece, so that the pole piece is automatically cut into the required specifications when passing through the circular slitting knife, and the pole piece is constant tension according to the tension value set by the user.

1.Rolling and slitting integrated machine is a combination of high precision roller and cutting machine functions, truly solve the problem of wide stripe coating wrinkling, optimization design and production of integrated equipment.

2.Rolling and slitting integrated machine, combining roll pressure function and cutting function, eliminating roll rolling device, as well as the eliminating roll rolling device, reducing operating staff, shortening the transmission chain, stable product quality, reducing loss, and improving product rate.

3.Suitable for continuous coated the positive or negative material of power battery with middle blank and ceramic edge. This positive material with blank and edge coated ceramic is hard, during rolling, the blank part without coating prone to fold. In order to solve this problem, the tensioning mechanism is used before and after the rolling, and the stretching mechanism before stretching is increased. After the coated coil is discharged from the unwinder, it is subjected to the rectification control, enters the front stretching mechanism, and then is rolled. After the rolling, the material enters the rear stretching mechanism, and the independent tension control is performed before and after the rolling, and unwinding and The winding tension is controlled separately to achieve the effect of no wrinkle after the pole piece rolling; after the rolling, the qualified pole piece is cut and wound, and the rolling and slitting process is completed.

4.The cutting is controlled by the automatic control system to control the tension of the pole piece, so that the pole piece is automatically cut into the required specifications when passing through the circular slitting knife.

The machine is suitable for continuous rolling and slitting process of positive and negative electrodes of various lithium batteries. It adopts constant pressure and limited gap rolling method to continuously roll of continuous or zebra coated battery pole pieces to increase the density of materials. After the rolling, the pole piece is subjected to a slitting mechanism, and can be divided into a plurality of pieces and wound up separately. It consists of a constant tension unwinding mechanism, a roller press, a front and rear stretching device, a thickness measuring device, a slitting, a winding mechanism, an electronic control system, a hydraulic system, and a correcting device.

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