3results about How to "Guaranteed rolling quality" patented technology

The utility model relates to the technical field of battery processing, in particular to an integrated rolling forming device for a lithium cobalt oxide positive plate, which comprises an unwinding mechanism, a rolling mechanism and a winding mechanism which are arranged in sequence, and the pole plate unwound by the unwinding mechanism is rolled by the rolling mechanism and then wound by the winding mechanism. The two sets of rolling mechanisms are sequentially arranged in the conveying direction of the pole piece, each rolling mechanism comprises a supporting roller and an extrusion roller which are matched with each other, the diameter of each supporting roller is not equal to that of each extrusion roller, and the extrusion rollers in the two sets of rolling mechanisms extrude the two sides of the pole piece respectively. The integrated roll forming device for the lithium cobalt oxide positive plate not only can ensure that the pole plate is compactly rolled, but also can reduce the internal roll stress of the pole plate.

The utility model relates to the technical field of lithium battery processing, and particularly discloses lithium battery processing pole piece rolling equipment which comprises a mounting seat, a roller I, a roller II and a variable component, the distance between the first roller and the second roller is adjusted according to the thickness of the lithium battery, and when the distance is adjusted, the variable assembly is arranged to control the rotating speed of the first roller and the rotating speed of the second roller in real time according to the thickness of the lithium battery. The variable assembly adjusts the rotating speed of the first roller and the second roller in real time according to the thickness of the lithium battery pole piece, and it can be ensured that the pressure borne by the pole piece is more uniform in the rolling process; when a thicker pole piece is rolled, the rotating speed of the roller is reduced, so that non-uniform stress of the pole piece caused by too high rotating speed is avoided; when a thin pole piece is rolled, the rotating speed of the roller is increased, and the production efficiency is improved while the rolling quality is ensured; according to the dynamic adjusting mode, the rolling uniformity of the pole piece is remarkably improved, the defects of thickness deviation, cracks and the like of the pole piece caused by uneven pressure are reduced, and the universality and adaptability of equipment are improved.

This invention discloses a tooling and manufacturing method for manually producing square steel torsion springs, including a dense coil rolling mold, a hook forming mold, and a starting pitch mold. The dense coil rolling mold includes a rolling mandrel, a limiting plate, and a rolling handle. The hook forming mold includes a forming handle, a rotating shaft, and a forming vertical rod. The starting pitch mold includes a fixing block. This application utilizes the cooperation between the dense coil rolling mold, the hook forming mold, and the starting pitch mold, along with existing lathes and stamping machines, to sequentially complete the three steps of dense coil rolling, hook forming, and starting pitch production. This enables manual production of torsion springs to meet production needs, thereby eliminating the need to purchase a torsion spring machine and reducing enterprise expenses.