Abstract: A variable-diameter adsorption winding needle mechanism and a winding machine are provided. The variable-diameter adsorption winding needle mechanism includes a winding needle assembly, a first adsorption winding needle, a second adsorption winding needle and a pin assembly. A plurality of adsorption holes are provided on the outer peripheral surfaces of the first adsorption winding needle and the second adsorption winding needle. At the same time, the winding needle assembly is also used to drive, under the driving of the pin assembly, the first adsorption winding needle and the second adsorption winding needle to move close to or away from each other.

Abstract: Embodiments of the present application provide a waste collecting device, which relates to the technical field of lithium cell manufacturing. The waste collecting device includes a frame, a waste buffer box, a negative pressure flow-equalizing box and a waste collecting box. The waste buffer box is arranged in an upper part of the frame and the waste buffer box is provided with a waste pipeline. The negative pressure flow-equalizing box is arranged on the top of the waste buffer box, the negative pressure flow-equalizing box is communicated with the waste buffer box, and the negative pressure flow-equalizing box is provided with a negative pressure pipeline. The waste collecting box is movably arranged in the lower part of the frame and is selectively communicated with the waste buffer box.

Abstract: A unit plate position fixation method and device and a lamination machine are provided. The unit plate position fixation method includes: obtaining peripheral position information of unit plates located between two layers of separators; controlling a hot-pressing device according to the peripheral position information to perform hot pressing on the two layers of separators, so that the two layers of separators are adhered at peripheral positions of the unit plates.

Abstract: A cell separator fly-cut mechanism includes a first driving component, a second driving component, a lamination component and a fly-cut component, and the lamination component is in transmission connection with the first driving component; and the fly-cut component is in transmission connection with the second driving component, and the fly-cut component is used to move synchronously with the separator and cut off the separator at the same speed as the separator.

Abstract: A variable-diameter adsorption winding needle mechanism and a winding machine are provided. The variable-diameter adsorption winding needle mechanism includes a winding needle assembly, a first adsorption winding needle, a second adsorption winding needle and a pin assembly. A plurality of adsorption holes are provided on the outer peripheral surfaces of the first adsorption winding needle and the second adsorption winding needle. At the same time, the winding needle assembly is also used to drive, under the driving of the pin assembly, the first adsorption winding needle and the second adsorption winding needle to move close to or away from each other.

Abstract: Embodiments of the present application provide a waste collecting device, which relates to the technical field of lithium cell manufacturing. The waste collecting device includes a frame, a waste buffer box, a negative pressure flow-equalizing box and a waste collecting box. The waste buffer box is arranged in an upper part of the frame and the waste buffer box is provided with a waste pipeline. The negative pressure flow-equalizing box is arranged on the top of the waste buffer box, the negative pressure flow-equalizing box is communicated with the waste buffer box, and the negative pressure flow-equalizing box is provided with a negative pressure pipeline. The waste collecting box is movably arranged in the lower part of the frame and is selectively communicated with the waste buffer box.

Abstract: A high-speed cutting device includes a mounting frame, a feeding mechanism, a linear chasing-cutting mechanism, an electrode guide plate, and an acceleration driving mechanism, the acceleration driving mechanism is provided on the discharging side of the electrode guide plate, and configured to perform acceleration driving on a material tape. The acceleration driving mechanism is provided behind the linear chasing-cutting mechanism to realize the acceleration driving of the material tape.

Abstract: The present disclosure discloses a laser cutting method, which relates to the technical field of laser cutting. The laser cutting method first removes the active material on the surface of a preset position of a to-be-cut part; and then performs the laser cutting on the to-be-cut part at the preset position to cut off the to-be-cut part. Compared with the prior art, since the laser cutting method provided by the present disclosure performs the step of removing the active material on the surface of the preset position of the to-be-cut part, the quality of the to-be-cut part can be guaranteed, the occurrence of material splashing can be avoided, the steps are simple, and the cutting efficiency is higher.

Abstract: A unit plate position fixation method and device and a lamination machine are provided. The unit plate position fixation method includes: obtaining peripheral position information of unit plates located between two layers of separators; controlling a hot-pressing device according to the peripheral position information to perform hot pressing on the two layers of separators, so that the two layers of separators are adhered at peripheral positions of the unit plates.

Abstract: An embodiment of the present disclosure provides a non-stop constant-speed efficient winding machine for separator, and relates to the technical field of lithium ion cell manufacturing. The non-stop constant-speed efficient winding machine for separator includes a base plate, an electrode feeding mechanism, a winding mechanism, a separator cutting mechanism, and a separator compounding mechanism. The winding mechanism includes a winding head and three winding needles rotatably provided on the winding head. By additionally providing the separator compounding mechanism between the electrode feeding mechanism and the winding mechanism, thermal compounding of the separator is realized, and through rolling separator cutting of the separator cutting mechanism, the separator cutting is realized. The winding needle located at the winding position can adsorb a separator end after the cutting, and wind the separator end on an outer circumferential surface of the corresponding winding needle.