The material of the pipe grabber lacks toughness, interference fit, or is inappropriate. When subjected to multiple impacts from external forces, the top of the pipe grabber cap falls behind and is easily damaged.
Cluster device adjustment and offset
Under normal working conditions, when adjusting the collective doffing device, it should be “three coaxial and flush”, that is, when the yarn tube is installed at the three positions of the spindle, tube bolt, and convex plate, the tube grabber and the center line of the tube The coaxial and bobbin top heights should be consistent; however, when the collective doffing device changes and fails to meet the above requirements, the tube grabber may be damaged.
a) After the position of the air frame has changed and the air frame has been running for a long time, if the air frame is not checked and leveled in time, the height and inlet and outlet dimensions of the air frame will be offset, resulting in pipe grabbing. The device is misaligned with the convex plate, spindle, and intermediate pipe bolt, and the pipe grabber is damaged.
b) The misalignment of the convex plate. Debris falling into the convex plate guide rail squeezes the convex plate and misaligns it. Too many or missing convex plates will also cause the convex plate to be misaligned, causing the pipe grab damage.
c) The pipe bolt bracket is deformed. If the pipe bolt bracket is deformed, or when the air rack is emptying the pipe onto the pipe bolt, and there is an empty tube on the pipe bolt, the pipe grabber will be accidentally affected. force, causing damage to the pipe grabber.
Insufficient equipment management and equipment cleaning
a) Due to inadequate management and problems with employee operating skills, failure to follow product instructions The instruction manual requires that the air rack be periodically flatbed in a timely manner, which causes the air rack to shift inside and outside, high and low, and causes extensive damage to the pipe grabber.
b) The inside of the convex plate guide rail is not cleaned in time, and debris falls in, causing the convex plate to be longitudinally misaligned and unable to transport the bobbin normally, resulting in damage to the tube grabber.
c) When the yarn bobbin is deformed or there is foreign matter in the yarn bobbin causing the air frame to insert the yarn bobbin into the spindle, convex plate, or intermediate pipe bolt, push the pipe grabber through or on the Drop damage.
d) The damaged convex plate was not replenished in time and the quantity was insufficient, causing the convex plate to be misaligned and the pipe grabber to be damaged.
e) The operator violated the operating procedures. There was a yarn tube in the middle. When the air frame grasped the empty tube, the tube was inserted into the middle position, causing the air frame to not be placed in place and the middle position was bent. The support base or pipe grabber is damaged.
f) The removed cap of the pipe grabber was not replaced in time, causing damage to the pipe grabber piston and base.
The clustering device does not operate in place
a) If the air frame swings in and out when it is not raised to the highest position, it may easily cause the spindle to Bending and oscillation cause yarn tension changes during twisting and winding, seriously affecting yarn quality.
b) The lifting mechanism (lifting arm, etc.) and air frame of the collective doffing device are permanently deformed, which will seriously affect the normal operation of the collective doffing device, especially in When it is stuck, it may not only hit the bending air frame and lifting mechanism, but also the bending pipe bolt bracket, causing serious consequences.
However, from another perspective, the damage to the pipe grabber actually protected the collective doffing device from permanent deformation, which would cause serious consequences.
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