Howa Machinery, Ltd.

Howa Kogyo Kabushiki Kaisha

Kunio Shinkai

Yoshio Kurachi

Yutaka Tanaka

Yukitaka Nomura

Hiroyuki Kureishi

Toyoo Suzuki

Yoshio Kawasaki

Tatsutake Horibe

Kazuo Yamada

Kanehiro Ito

Hachiro Yokoyama

In a sliver piecing operation by an apparatus for continuously supplying slivers mechanically to a roving frame, wherein a plurality of aligned sliver cans are arranged along the longitudinal direction of the roving frames in a taper arrangement with regard to the volume of sliver contained therein. Full packaged sliver cans are aligned at a standby position adjacent to and facing the aligned sliver cans which contain the smallest volume of sliver therein, and when the above-mentioned sliver cans having the smallest volume of sliver reach an almost exhausted condition, a unit sliver piecing operation of piecing a leading end portion of sliver from one of each of the full packaged sliver cans with a trailing end portion of each sliver supplied to the roving frame, created by separating same from each sliver supplying can facing thereto, is carried out in steps at all of the above-mentioned full packaged sliver cans. When the full packaged sliver cans are at the standby positions thereof, a position of an end of a sliver from each of the full packaged sliver cans is regulated to a predetermined angular position with respect to the longitudinal axis of the sliver can.

Apparatus for continuously supplying and piecing slivers to a roving

A method and apparatus for continuously supplying slivers mechanically to a roving frame, wherein a plurality of aligned sliver cans are arranged along the longitudinal direction of the roving frames in a taper arrangement with regard to the volume of sliver contained therein-full packaged sliver cans are aligned at a standby position adjacent to and facing the aligned sliver cans which contain the smallet volume of sliver therein, and when the above-mentioned sliver cans having the smallest volume of sliver reach an almost exhausted condition, a unit sliver piecing operation of piecing a free end of sliver from one of each of the full packaged sliver cans with a free end of each sliver supplied to the roving frame, created by separating same from each sliver supplying can facing thereto, is carried out in steps at all of the above-mentioned full packaged sliver cans. When the packaged sliver cans are at the standby positions thereof, a position of an end of a sliver from each of the full packaged sliver cans is regulated to a predetermined angular position with respect to the longitudinal axis of the sliver can.

Method for continuously supplying slivers to a roving frame

A system for controlling the displacement motion of a carriage working machine which is capable of displacing along a track arranged along ends of spinning machines installed in parallel as a group, wherein an automatic apparatus for carrying out a certain part of the process by these spinning machines is rigidly or detachably mounted on a carriage. In this system, when a spinning machine outputs a forecast signal to call the working machine, the forecast signal is registered in a registration table. After the working machine has arrived at a position on the track adjacent to the particular spinning machine, and it is confirmed that the particular spinning machine can accept the operation of the automatic apparatus of the working machine, then the automatic apparatus starts to carry out its operation. Thereafter, a particular spinning machine to which the operation of the automatic apparatus should be applied with the first priority is selected based upon data registered in the registration table, and the travel direction of the working machine is determined based upon the frame number of the above-mentioned particular spinning machine and the present position of the working machine. This selection and decision is logically made according to respective programs, by a computer.

System for controlling displacement of carriage working machines

The present invention relates to a spindle for a spinning frame or a twisting frame by which a tail yarn is formed on a full bobbin and is taken out from the full bobbin at a cop changing operation and is assuredly held on the spindle. In the spindle of the present invention, a band-like yarn-hanging member is arranged on the peripheral face of an intermediate part of a bobbin-attaching portion of the spindle and the band-like yarn-hanging member catches and holds the yarn wound in the form of a loop attached to the spindle at the cop changing operation.

Spindle for spinning frame or twisting machine

A method and apparatus for switching the relative position between roving bobbins held by bobbin hangers of a front row and the roving bobbins held by the rear row in a spinning frame. The roving bobbin exchange operation is carried out as successive unit operations from one end-side of the spinning frame to the other end-side thereof. In each unit operation, first the axial distance between a bobbin hanger of the front row and a bobbin hanger of the rear row, which are positioned adjacently in the lengthwise direction of the spinning frame, is reduced to a predetermined distance, then the relative position of those two bobbin hangers is reversely changed while maintaining the reduced axial distance. Thereafter, the axial distance between those two bobbin hangers is returned to the initial condition for carrying out the spinning operation. The roving bobbin exchange operation can be carried out during the normal spinning operation, when the roving bobbins held by either one of the bobbin hangers of the front row and the rear row become substantially exhausted.

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Handa, Japan

Kunio Shinkai