Automatic aligning lateral clamping pneumatic pipe gripping device

Abstract

The invention relates to an automatic aligning lateral clamping pneumatic pipe gripping device. Elastic bodies (3) are respectively embedded at front ends of a first gripping jaw (1) and a second gripping jaw (2). Both lateral surfaces of a cylinder body (4) are respectively connected with a cylinder cover (5). An elastic film (7) is arranged between the cylinder body (4) and the cylinder cover (5). The cylinder body (4) is arranged between an upper bracket (10) and a lower bracket (11) and is positioned by a positioning pin (8). A left-handed spring (15) and a right-handed spring (14) are respectively arranged on the first gripping jaw (1) and the second gripping jaw (2). The upper bracket (10) and the lower bracket (11) are tightened with a pin shaft (12) by nuts (9). The cylinder body (4) is provided with a sealing gasket (13). The upper bracket (10) and the lower bracket (11) are fixed on a gas frame (18) by screws (16). The automatic aligning lateral clamping pneumatic pipe gripping device has the characteristic of automatically aligning, can guarantee that a pipe is accurately, stably and reliably gripped, is suitable for various bobbins and has high universality and long service life.

Description

technical field [0001] The invention belongs to a part of a textile machine, and in particular relates to a self-aligning side clamping pneumatic pipe grabber. Background technique [0002] At present, the tube grabbers of the collective doffing devices of spinning frames at home and abroad are roughly divided into two categories: piston type and air bag type. The disadvantage of the piston gripper is that it does not have an automatic centering function. When the gripping center of the gripper does not coincide with the bobbin center, such as assembly errors, manufacturing errors, etc., the gripper piston forcibly grips the yarn. The bobbin is "fixed" by the spindle and the friction force increases sharply. As a result, the bobbin gripper cannot pull out the bobbin, which causes the air frame to move or deform, or causes the spindle to be damaged. When the diameter of the bobbin changes, the bobbin gripper It must also be replaced accordingly, so its versatility is not str...

AI Technical Summary

Problems solved by technology

The disadvantage of the piston gripper is that it does not have an automatic centering function. When the gripping center of the gripper does not coincide with the bobbin center, such as assembly errors, manufacturing errors, etc., the gripper piston forcibly grips the yarn. The bobbin is "fixed" by the spindle and the friction force increases sharply. As a result, the bobbin gripper cannot pull out the bobbin, which causes the air frame to move or deform, or causes the spindle to be damaged. When the diameter of the bobbin changes, the bobbin gripper It must be replaced accordingly, so its versatility is not strong; , the clamped bobbin can only be forcibly pushed off the cap of the gripper

[0004] In addition, no matter whether the current tube grabber is piston type or airbag type, because of its structure, when grabbing the bobbin, it has to be inserted from the upper part of the bobbin and lowered to the grabbing position, so its stroke is long and the auxiliary time is extended. time

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