Патент USA US2107378код для вставки
Feb. 8, 1938. 2,107,378 E. KATO FINE SPINNING FRAME Filed Aug. 19, 1936 ElapAed, Time qflér Dqffmj INVENTOR: Z. K7210 W A TTORNEY5 Patented Feb. 8, 1938 2,107,378; _ UNITED STATES PATENT OFFICE 2,107,378 FINE SPINNING FRAME v Etsuro Kato, Meguro-ku, Tokyo-shi, Japan Application August 19, 1936, Serial No. 96,884 In Japan October 25, 1935 1 Claim. (Cl. 118—15) This invention relates to certain‘ improvements in ?ne spinning frame of the type in which a sliver moves vertically in the direction of the axis of a spindle disposed in a vertical position.‘ 5 One object of the invention is to provide a simple and compact spinning frame. Another object of the invention is to make the variation of tension of winding yarn due to bal looning independent of the elapsed time after the 10 do?ing of cop. In the accompanying drawing: Fig. 1 is a side view of a ?ne spinning frame em bodying the invention. ' . Fig. 2 is a front view of the spinning frame 15 partly broken away. Fig. 3 is a diagram of operating characteristic curve illustrating the relation of revolving speed of spindle and elapsed time after do?ing of cop in ?ne spinning frame embodying the invention. Referring to Figs. 1 and 2, I represents a gear 20 ‘case, 6 a poker arm which is movably mounted on a shaft 1. One end of said poker arm is oper atively connected with a cam (not shown) in the gear case I by means of a connecting link 2. A lever 5 is securely or integrally connected with the poker arm 4 so as to be rocked when the poker arm 4 is rocked. Another poker arm 4' is arranged to be moved at the same period as that of the motion of the poker arm 4 by the rock 30 ing arm 5 through means of a connecting link 6 and a lever 5'. The poker arm 4 and a number of the other poker arms 4' are arranged in a line nearly below the center line of the machine frame ll) supporting the driving electric motors 9 indi - vidual to the spindle s 8. Each of the poker arms 4 and 4' is provided 0n its free end with a roller 13 adapted to engage with the lower end of a vertical rod. M which exten ds through the beams of the machine frame ill. The vertical rod I4 is guided by the roller stand l1 and a lower tie beam l8 of the machine frame l0, through which said rod extends. To the vertical rods M are secured the beams l5 for carrying ring rails l2, l2’ and an other beam I6 for carrying guide rails II, II’, ' and consequently said vertical rods land these ring rails and guide rails will be moved as one unit when the poker arms 4 and 4’ are moved. From the foregoing, it will be seen that the arrangements are considerably simpli?ed. Fur ther, it is apparent that the guide rail H and the ring rail I! are moved with a ?xed distance between them, any relative motion not being made, and that the sliver is moved vertically in the direction of the axis of the spindle disposed in vertical position, and consequently yarn will be drafted in a vertical direction in the sliver and guide, so that a constant tension of yarn may be ensured irrespective of the motion of the guide moved with the ring rail. The fact that there is no» relative motion between the guide rail ll and ring rail I 2 upon their movement will re 5 sult that variation of the tension of yarn due to ballooning is independent of the elapsed time after do?ing of the cop. In ?ne spinning frames heretofore in use, the 10 guide and spindle are positioned in a?xed relation, and the cop building is effected by up-and-down motion of the ring rail, and accordingly in the be ginning of the cop building and distance between ' the guide and traveller is larger and the balloon- 15 ing will increase, whereby yarn will be caused to more frequently be broken, as yarn is more frequently caused to fo-ul the separator and other parts due to increase in the tension of the 'yarn. In order to avoid this disadvantage, the revolving 20 speed of the spindle must be lowered. On the con trary, toward the end'of the cop building the dis tance between the guide and traveller is smaller and the size of the balloon will decrease, so that yarn is likely to be broken by a small shock, and 25 accordingly the revolving speed must also be lowered to avoid the said disadvantage. With ?ne spinning frames heretofore in use, therefore the .number of revolutions per minute of the spindle should be related to the elapsed time after 30 the do?ing of the cop so that the control of oper ation of the spindles becomes more troublesome and the arrangement becomes more complicated. With the ?ne spinning frame embodying the in vention, the guide and ring rail are related so 35 as to be moved keeping a ?xed distance between them, whereby the disadvantage of lowering re volving speed of spindle as mentioned above will be avoided, and the variation of tension of yarn due to ballooning is regular from the beginning 40 to the end of winding of cop and independent of elapsed time after the do?ing of cop as illustrated by a diagram in Fig. 3. As Seen' from the foregoing description, with the arrangement according to the invention, the 45 drafting tension of yarn is constant irrespective‘ of up-and-down motion of the guide moving with the ring rail, as the direction of drafting yarn in sliver and guide is vertical due to sliver being vmoved vertically in the direction of the axis of 50 spindle disposed in vertical position, and the con trol of the operation of r‘ the spindle is facilitated, as the ring rail and guide rail are movedrin a ?xed relation keeping a ?xed distance between them to make uniform the tension of the yarn 65 2,107,378 .12due to ballooning and to give the spindle an opera tained the nature of my said invention and in tion control characteristic as illustrated in “Fig. 3, independently of the elapsed time after do?ing of cop. Further, the arrangement for trans mitting up-and-down motion of the ring rail and guide rail is extremely simpli?ed, as the ring rail and guide rail are securely mounted on the ver-_ tical rod which is moved up and down for cop ' building. Still further the size of the spinning 10 frame may be made smaller, as the space between two sides of the machine frame may be decreased due to the vertical rod being disposed in an inter‘ mediate position between the spindles arranged on two sides oft-he machine frame, an /a’smooth what manner the same is tov be performed, I claim: / i ’ A ?ne spinning frame comprising, in combina tion, a frame, two parallel rows of vertical spindles arranged on opposite sides of the frame, two parallel ‘rows of drafting apparatus arranged on opposite sides of the frame ,and comprising parallel rows of vertically arranged drafting rol lers to draft slivers vertically in substantial c0 10' axial relation to said spindles, vertically slideable rods mounted in the frame and disposed inter mediate the rows of spindles, ring rails and guide rails secured in spaced apart relation on said vertical rods, actuating means operably connected 15 operation of the vertical rod may be n'sured due . to said rods for simultaneously moving said rods ' to the guiding function provided by the tie beam vertically, and individual motor driving means ' forming part of the‘machine frame through which the vertical rod extends. Having now particularly described and ascer for‘ each of the spindles. - i ETSURQ KATO.