US 12,304,673 B2
Film wrapping machine and film leading device therefor
Ying Zheng, Taichung (TW)
Assigned to TAIWAN HIGHDREAM INTELLECTUALIZED MACHINERY CO., LTD., Taichung (TW)
Filed by TAIWAN HIGHDREAM INTELLECTUALIZED MACHINERY CO., LTD., Taichung (TW)
Filed on Jan. 5, 2024, as Appl. No. 18/404,948.
Claims priority of application No. 202320842953.7 (CN), filed on Apr. 17, 2023.
Prior Publication US 2024/0343430 A1, Oct. 17, 2024
Int. Cl. B65B 11/02 (2006.01)
CPC B65B 11/025 (2013.01) 14 Claims
OG exemplary drawing
 
1. A film leading device for a film wrapping machine, the film leading device comprising:
a fixed frame;
a shaft rotatably disposed on the fixed frame;
a film-leading component fixed on the shaft and having:
a frame body having:
a first side and a second side that are opposite to each other; and
a film-passing opening defined through the frame body;
a film-holding board extending from an edge of the film-passing opening and protruding from the first side of the frame body; and
a limiting element disposed on the frame body, protruding from the first side of the frame body, and configured to abut against a limiting board of the film wrapping machine;
at least one torsion spring disposed on the shaft and having
two opposite ends respectively positioned on the fixed frame and the frame body of the film-leading component;
at least one positioning block having a pin groove; and
at least one positioning pin configured to be detachably inserted into the pin groove;
wherein the at least one positioning block and the at least one positioning pin are respectively disposed on the fixed frame and the frame body of the film-leading component; and wherein when the at least one positioning pin is detached from the pin groove, the at least one torsion spring actuates the film-leading component and the shaft to rotate relative to the fixed frame.