This application relates to the field of battery production equipment technologies, and in particular, to a cutting-off apparatus and battery assembly line production equipment. The cutting-off apparatus at least includes a slitting mechanism and a supporting element. With the provision of a supporting element connected to the slitting mechanism, the supporting element can provide a supporting force acting on a target electrode plate when the slitting mechanism in a cutting-off position is cutting off the separator. Then, when the separator rebounds due to being cut off and impacts the target electrode plate, the target electrode plate can avoid skewness due to the rebound of the separator under the support of the supporting element, thereby alleviating the problem of wrinkles of the electrode plate caused by the separator being cut off during winding of an electrode stack and reducing the risk of defects inside the battery.

A canvas cover launching device to prevent crimps on the canvas and achieve flattening effect on the canvas, having a frame and a mounting rack on one side, a hydraulic control valve operated by control levers is on the mounting rack. Two driving plastic rollers and a surface smoothening plastic roller are rotatably connected to the frame from inside to outside of the frame sequentially; corresponding ends of the two driving plastic rollers on a same side are connected to a transmission component enabling the two driving plastic rollers to rotate towards the same direction. A synchronous transmission gearbox is provided to connect corresponding ends on a same side of the surface smoothening plastic roller and one of the two driving plastic rollers more proximal to the surface smoothening plastic roller. Hooked plates are symmetrically provided on two ends of the surface smoothening plastic roller respectively.

A canvas cover launching device to prevent crimps on the canvas and achieve flattening effect on the canvas, having a frame and a mounting rack on one side, a hydraulic control valve operated by control levers is on the mounting rack. Two driving plastic rollers and a surface smoothening plastic roller are rotatably connected to the frame from inside to outside of the frame sequentially; corresponding ends of the two driving plastic rollers on a same side are connected to a transmission component enabling the two driving plastic rollers to rotate towards the same direction. A synchronous transmission gearbox is provided to connect corresponding ends on a same side of the surface smoothening plastic roller and one of the two driving plastic rollers more proximal to the surface smoothening plastic roller. Hooked plates are symmetrically provided on two ends of the surface smoothening plastic roller respectively.

The present specification relates to an embodiment of an electrode material winding apparatus, in which an electrode material is processed so that an electrode tab is not disposed in an impregnation region into which an electrolyte can be injected, and the electrode material is wound so that the electrode tab is arranged only in a specific region excluding the impregnation region, thereby winding the electrode material such that the electrolyte is injected through the impregnation region.

The present specification relates to an embodiment of an electrode material winding apparatus, in which an electrode material is processed so that an electrode tab is not disposed in an impregnation region into which an electrolyte can be injected, and the electrode material is wound so that the electrode tab is arranged only in a specific region excluding the impregnation region, thereby winding the electrode material such that the electrolyte is injected through the impregnation region.

A coilbox is provided for winding a metal strip to form a coil and for unwinding the metal strip from the coil. In order to further develop a known coilbox in such a manner that the position of the coil is known at all times, in particular during its passive transfer from the winding station to the unwinding station, at least one additional roller rotatably mounted on the frame is provided.

A coilbox is provided for winding a metal strip to form a coil and for unwinding the metal strip from the coil. In order to further develop a known coilbox in such a manner that the position of the coil is known at all times, in particular during its passive transfer from the winding station to the unwinding station, at least one additional roller rotatably mounted on the frame is provided.

The disclosure relates to a method for producing a circumferential packaging for a paper roll. The paper roll has a wound paper web and two opposing end faces and a circumferential surface that connected the end faces to each other. The method includes the following steps: applying a protective material in liquid form to an end section of the paper web by at least one application unit, the protective material being applied to one of two sides of the end section of the paper web, winding up the end section of the paper web, so that the end section forms at least one outer layer of the paper roll, and curing the protective material, resulting in a protective layer that covers the circumferential surface.

The disclosure relates to a method for producing a circumferential packaging for a paper roll. The paper roll has a wound paper web and two opposing end faces and a circumferential surface that connected the end faces to each other. The method includes the following steps: applying a protective material in liquid form to an end section of the paper web by at least one application unit, the protective material being applied to one of two sides of the end section of the paper web, winding up the end section of the paper web, so that the end section forms at least one outer layer of the paper roll, and curing the protective material, resulting in a protective layer that covers the circumferential surface.