Mechanical drum suspension turn-up forming structure

A mechanical drum suspension pull turn-up molding structure, comprising a main shaft assembly (10) and a rear delay unloading (20), wherein the rear delay unloading (20) is arranged opposite to the main shaft assembly (10), the mechanical drum suspension pull turn-up molding structure further comprises a lock ring assembly (30) and a turn-up assembly (40) arranged on the main shaft assembly (10), there are two turn-up assemblies (40), and the two turn-up assemblies (40) are symmetrically arranged at two sides of the lock ring assembly (30), the turn-up assembly (40) comprises:

• a turn-up structure (41), wherein there are a plurality of turn-up structures (41), the plurality of turn-up structures (41) are arranged at intervals around a circumference of the main shaft assembly (10), and the turn-up structure (41) has a supporting position and a retracted position;
• a supporting plate (42), there are a plurality of supporting plates (42), wherein the plurality of supporting plates (42) are in one-to-one correspondence with the plurality of turn-up structures (41), and the supporting plates (42) are arranged on the corresponding turn-up structures (41) so as to provide a lap platform for a side wall during the movement of the turn-up structures (41) from the retracted position to the supporting position;
• a first driving assembly (43), wherein the first driving assembly (43) is arranged on the main shaft assembly (10), and the first driving assembly (43) is in drive connection with the plurality of turn-up structures (41);
• during the movement of the turn-up structure (41) from the supporting position to the retracted position, a suspension arm (21) of the rear delay unloading (20) is able to stretch into a space between the side wall and the turn-up structure (41), and drive the side wall to move in a direction away from the turn-up structure (41);
• wherein the turn-up structure (41) comprises:
• a turn-up connecting rod (411), the turn-up connecting rod (411) being in drive connection with the first driving assembly (43), and the supporting plate (42) being provided on the turn-up connecting rod (411),
• wherein the turn-up connecting rod (411) comprises a first connecting rod (4111), a second connecting rod (4112) and a third connecting rod (4113), the first connecting rod (4111) and the third connecting rod (4113) are movably connected to both sides of the second connecting rod (4112) in the length direction, respectively, the first connecting rod (4111) and the third connecting rod (4113) rotate relative to the second connecting rod (4112), and one end of the second connecting rod (4112) close to the third connecting rod (4113) is in drive connection with the first driving assembly (43), and one end of the first connecting rod (4111) away from the second connecting rod (4112) abuts against the side wall or the lock ring assembly (30).