Mechanical hand grabbing and interlocking force eliminating combined device of spinning doffer

Abstract

The invention relates to a mechanical hand grabbing and interlocking force eliminating combined device of a spinning doffer. The mechanical hand grabbing and interlocking force eliminating combined device is characterized by comprising a mechanical hand grabbing device and an interlocking force eliminating device, a pure mechanical mode is adopted in the whole bobbin drawing process, operation of all worknodes is reliable in action and accurate in rhythm, the combined device is small in size and light in weight, and an existing spinning structure does not need to be improved. Power load is small, a cart can be pushed with a single motor or pushed manually without a motor to fast draw a bobbin, and doffing is achieved without damage to the bobbin or a spindle.

Description

technical field [0001] The invention relates to a textile ring spinning doffing device, in particular to a composite device for grabbing by a manipulator of a worsted spinning doffer and eliminating fitting force. Background technique [0002] Ring spinning is a very important and widespread spinning technology. In the process of ring spinning, it is necessary to remove the spun bobbin from the spindle of the spinning frame, which is called doffing. In the traditional manual doffing, the yarn bobbin is pulled out from the spindle bar by hand and put into the basket, and the empty bobbin without yarn is put into the spindle bar. Low; at present, machine doffing is used, and the bobbins are removed one by one or in small batches by the doffing machine, and the empty bobbin is placed on the spindle rod by the insertion device, but it cannot solve the problem of the fitting force between the spindle rod and the bobbin question. Some stand-alone doffing machines have fitting f...

AI Technical Summary

Problems solved by technology

In the traditional manual doffing, the yarn bobbin is pulled out from the spindle bar by hand and put into the basket, and the empty bobbin without yarn is put into the spindle bar. Low; at present, machine doffing is used, and the bobbins are removed one by one or in small batches by the doffing machine, and the empty bobbin is placed on the spindle rod by the insertion device, but it cannot solve the problem of the fitting force between the spindle rod and the bobbin question

Some stand-alone doffing machines have fitting force elimination devices, but the method damages the spindle bar, and is prone to failure or malfunction; some collective doffing devices that come with spinning frames solve the problem of fitting force, first by vibration, second It is to replace the original polished spindle rod with the aluminum spindle rod with balls, which costs a lot. It is difficult to adapt to the collective doffing of the traditional spinning frame without replacing the aluminum spindle rod.

[0003] The existing patent No. 201610202934.2 is a vertical-axis ring spinning automatic doffing device, which uses a friction bump with compensation error to contact and rub against the spindle rod, which drives the spindle rod to rotate and disengage the bobbin, so that the bobbin can be pulled out, but the friction control It is always incapable of precise control, and there is a hidden danger that insufficient friction force cannot drive the spindle bar to rotate and disengage the bobbin, which affects continuous working efficiency. At the same time, after long-term frictional use, the friction bump and the spindle bar are worn, which also affects the rotation drive and cannot be stably controlled. Disengagement of the bobbin from the spindle

There is also a combined automatic doffing trolley with a patent number of 201420810740.7, which uses a driving device for inserting empty bobbins to insert empty bobbins on the bobbins after extruding, and uses multiple detection sensors to cooperate with the driving mechanism of the conveying screw to quantitatively transport the empty bobbins. Into the empty bobbin channel, the screw rotates to deliver the bobbin to the bobbin channel, and finally the empty bobbin is moved by the spindle rod through the inclined insertion channel of the empty bobbin, and inserted into the spindle rod by its own weight in the way of inclined insertion tube, The oblique insertion of the hole bobbin into the spindle bar has the defects that it cannot be effectively inserted vertically, the insertion is not complete, and the fitting spindle bar cannot be fixed.

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