2results about How to "Realize unwinding" patented technology

The utility model relates to automatic production line technical field discloses a kind of expansion and contraction subassembly and double-end uncoiling equipment of double-end uncoiling equipment, and expansion and contraction subassembly includes main shaft, main shaft is connected with rotating component transmission, main shaft is equipped with pusher assembly and expansion assembly, rotating component drives main shaft, and pusher assembly and expansion assembly rotation are connected with main shaft;Expansion assembly includes several expansion plates, and expansion plate is enclosed to the cylindrical support surface with main shaft as axis;Pusher assembly is connected with expansion assembly transmission, and pusher assembly drives expansion assembly and moves along the axial direction of main shaft.This scheme expansion assembly when moving along the axial direction of main shaft, expansion plate is driven and moves expansion or reduces along the radial direction of main shaft, change the size of the support surface enclosed, by changing the support surface to the inner wall of different size roll stock support, rotating component drives expansion assembly rotation, and then drive roll stock rotation, to cooperate with material leading structure and realize uncoiling.

The utility model discloses a multi -functional scaffold, including scaffold frame, the top of scaffold frame is fixed with standing board, and the top fixedly connected with two mounting columns of standing board is installed with the winding drum through the embedded joint bearing rotation between two mounting columns top, and the outer wall of winding drum is around the sunshade cloth. The utility model discloses through the effect of the meshing of first bevel gear and fourth bevel gear drives winding drum rotation to realize the unwinding of sunshade cloth, and simultaneously, the meshing of third bevel gear and second bevel gear drives screw rod rotation to make the connecting rod move outward along the slide rod, and then make first rotary rod and second rotary rod rotate to linear placement to spread out sunshade cloth and shade, and then effectively block the direct sunlight to avoid the high temperature heat stroke of construction personnel easily, sunburn, the application increases the sunshade function on the scaffold to reflect the multi -functional property of scaffold.