US 12,460,331 B1
Right-angle needle-punching mechanisms and needle-punching devices
Fuqiang Shen, Shanghai (CN); and Yalin Sun, Shanghai (CN)
Assigned to Q-CARBON MATERIAL CO., LTD., Shanghai (CN)
Filed by Q-CARBON MATERIAL CO., LTD., Shanghai (CN)
Filed on Jun. 24, 2025, as Appl. No. 19/248,424.
Application 19/248,424 is a continuation of application No. PCT/CN2025/086937, filed on Apr. 2, 2025.
Claims priority of application No. 202411614416.2 (CN), filed on Nov. 13, 2024.
Int. Cl. D04H 18/02 (2012.01)
CPC D04H 18/02 (2013.01) [D10B 2505/02 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A right-angle needle-punching mechanism, the right-angle needle-punching mechanism being fixed on a main frame of a needle-punching device for performing needle punching on a right-angle part of a preform, wherein the right-angle needle-punching mechanism includes a first right-angle needle-punching assembly, a second right-angle needle-punching assembly, a position adjusting assembly configured to drive the first right-angle needle-punching assembly and the second right-angle needle-punching assembly to approach or move away from the preform, and an angle adjustment assembly configured to change needle-punching angles of the first right-angle needle-punching assembly and the second right-angle needle-punching assembly, the angle adjustment assembly, the first right-angle needle-punching assembly, and the second right-angle needle-punching assembly are arranged on the position adjusting assembly, the first right-angle needle-punching assembly includes a first right-angle needle plate, the second right-angle needle-punching assembly includes a second right-angle needle plate, the first right-angle needle plate and the second right-angle needle plate perform needle punching on respective sides of the right-angle part of the preform;
the main frame includes a first door-shaped frame and a second door-shaped frame, the first door-shaped frame and the second door-shaped frame being arranged opposite to each other; the position adjusting assembly including two right-angle sliding plates located between the first door-shaped frame and the second door-shaped frame, a connecting plate fixedly connecting the two right-angle sliding plates, and a right-angle adjustment cylinder fixedly attached to an outer surface of at least one of the first door-shaped frame and the second door-shaped frame, the right-angle adjustment cylinder being connected to the connecting plate to drive the two right-angle sliding plates to move along a right-angle sliding rail arranged on inner surfaces of the first door-shaped frame and the second door-shaped frame;
the angle adjustment assembly includes a driving member and an adjustment member, the first right-angle needle-punching assembly further including a first right-angle cylinder and a first right-angle push rod connected to the first right-angle cylinder and the first right-angle needle plate, respectively, and the second right-angle needle-punching assembly further including a second right-angle cylinder and a second right-angle push rod connected to the second right-angle cylinder and the second right-angle needle plate, respectively, the first right-angle cylinder and the second right-angle cylinder being connected to the adjustment member, respectively, and the driving member driving the adjustment member to adjust an angle between the first right-angle cylinder and the second right-angle cylinder.