Universal film applicator with ladder-shaped base for automatic positioning of mobile phone

A universal film applicator structure with a ladder-shaped base for automatic positioning of mobile phones, comprising a first housing, a phone slot, a lens groove, a support platform, a hinged bracket, a fixed plate, a sliding groove, an automatic contraction component, a thickness fine adjustment component, and a roller component, wherein the first housing is provided with the hinged bracket which is fixedly connected to the fixed plate, the fixed plate is embedded inside the support platform and is slidably connected to a contraction plate of the automatic contraction component, a first connecting bolt and a second connecting bolt are symmetrically disposed on the contraction plate, one end of a third spring is connected to the first connecting bolt and the other end is connected to a protrusion at the bottom of the fixed plate, a long rack is sleeved on the second connecting bolt, one end of the long rack is fitted onto a limit block, and one side of the limit block is slidably connected to a movable pull block, the limit block is slidably connected to a limit plate, a fixed block is fitted on the top of the movable pull block, and the top of the fixed block is connected to one end of a first spring, the fixed block is fixed to the fixed plate by a bolt, and the other end of the first spring is provided with a first button, a sliding groove is provided on the fixed plate, a second housing of the thickness adjustment component is slidably connected on the sliding groove, and a follow-up head is slidably connected in a through-hole on the outer side of the second housing, and a mobile phone support plate is fixed on other side of the second housing, the follow-up head is connected to a slider which is connected to one end of a fourth spring, and the other end of the fourth spring is fixed to the second housing, the slider is slidably connected to a follow-up block, and the bottom of the follow-up block is connected to one end of a fifth spring, and the other end of the fifth spring is connected to the second housing, one end of a sixth spring is disposed at the bottom of the second housing and the other end is connected to the phone slot.