EP0672766A1 - Vorrichtung zur Auf- und Abbewegung zum Antreiben der Fadenführerbank in einer Spinnmaschine - Google Patents

Vorrichtung zur Auf- und Abbewegung zum Antreiben der Fadenführerbank in einer Spinnmaschine Download PDF

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Publication number
EP0672766A1
EP0672766A1 EP95103751A EP95103751A EP0672766A1 EP 0672766 A1 EP0672766 A1 EP 0672766A1 EP 95103751 A EP95103751 A EP 95103751A EP 95103751 A EP95103751 A EP 95103751A EP 0672766 A1 EP0672766 A1 EP 0672766A1
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EP
European Patent Office
Prior art keywords
rail
ring
motion
lappet
pulley
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95103751A
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English (en)
French (fr)
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EP0672766B1 (de
Inventor
Kiwamu C/O Kabushiki Kaisha Toyoda Niimi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyoda Jidoshokki Seisakusho KK
Toyoda Automatic Loom Works Ltd
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Publication date
Priority claimed from JP4747194A external-priority patent/JPH07258926A/ja
Priority claimed from JP07228894A external-priority patent/JP3509176B2/ja
Application filed by Toyoda Jidoshokki Seisakusho KK, Toyoda Automatic Loom Works Ltd filed Critical Toyoda Jidoshokki Seisakusho KK
Publication of EP0672766A1 publication Critical patent/EP0672766A1/de
Application granted granted Critical
Publication of EP0672766B1 publication Critical patent/EP0672766B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/36—Package-shaping arrangements, e.g. building motions, e.g. control for the traversing stroke of ring rails; Stopping ring rails in a predetermined position

Definitions

  • the present invention generally relates to a spinning frame or machine (hereinafter referred to as a spinning machine) such as a ring spinning machine, a ring twisting machine or the like which is equipped with a ring rail and a thread guide rail such as a lappet holding angle bar, an anti-node ring holding rail or the like. More particularly, the present invention is concerned with an up/down-motion apparatus for driving a thread guide rail for forming cops in the spinning machine.
  • a spinning machine such as a ring spinning machine, a ring twisting machine or the like which is equipped with a ring rail and a thread guide rail such as a lappet holding angle bar, an anti-node ring holding rail or the like.
  • the present invention is concerned with an up/down-motion apparatus for driving a thread guide rail for forming cops in the spinning machine.
  • an up/down-motion apparatus for gradually moving upwardly a ring rail while repeating an up-and-down motion thereof during operation of the spinning machine with a thread guide rail being thereby moved upwardly and downwardly in synchronism with the up/down-motion of the ring rail, for forming cops.
  • the thread guide rail there may be mentioned a rail which is referred to as the lappet holding angle bar for supporting lappets each having a snail wire mounted thereon and a rail which is called the anti-node ring holding rail for supporting anti-node rings for preventing cops being formed from ballooning excessively between the snail wire and a traveller during the spinning operation.
  • JP-A-1-148820 Japanese Unexamined Patent Application Publication No. 148820/1989
  • JP-A-1-148820 an apparatus in which the ring rail, the thread guide rail (lappet holding angle bar) and others are suspended downwardly by means of cords, wherein cords are wound on take-up drums which are driven by separate motors, respectively.
  • the upward displacements of the individual rails are positively realized by winding the cords on the associated take-up drums, respectively.
  • the rails are caused to move downwardly under the gravity while delivering out the cords from the take-up drums by rotating them in the reverse direction.
  • each of poker pillars adapted for supporting the ring rail and the lappet holding angle bar, respectively is constituted by a screw shaft having a threaded portion formed partially in the outer periphery, wherein each of the screw shafts is placed in screwwise engagement with a nut member mounted rotatably on the machine frame.
  • the ring rail and the lappet holding angle bar (rail) are positively driven in both the upward and downward directions.
  • the lappet holding angle bar is not always required to move upwardly and downwardly in synchronism with the ring rail. Besides, no problem will arise even when the breather or pause phenomenon takes place in the motion of the lappet holding angle bar.
  • the up/down-motion apparatus for the anti-node ring holding rail there are hitherto known two types of apparatuses, i.e., a unitary type up/down-motion apparatus by which the anti-node rings and the ring rail are moved in union and an independent type up/down-motion apparatus by which the anti-node rings are moved independent of the ring rail.
  • the anti-node rings are fixedly secured to the ring rail. So long as the up/down-motion stroke is relatively short, the unitary type up/down-motion apparatus for the anti-node ring holding rail suffers practically no problems. However, in the case where a long bobbin is used or the up/down-motion stroke is increased, it then becomes difficult to control properly the size of the balloon over the whole range of the up/down-motion stroke.
  • the anti-node ring when the anti-node ring is disposed at a position selected appropriately for the start of winding of the thread on the bobbin at which the balloon is likely to collapse, the anti-node ring will assume a position which is excessively higher than that suited for the appropriate balloon control after the cop being formed has reached a given intermediate size.
  • a typical one of the independent type up/down-motion apparatus is disclosed, for example, in Japanese Unexamined Patent Application Publication No. 303131/1988 (JP-A-63-303131).
  • JP-A-63-303131 Japanese Unexamined Patent Application Publication No. 303131/1988
  • the anti-node ring holding rail is moved up and down together with the lappet holding angle bar before reaching a predetermined take-up amount, and thereafter the anti-node ring holding rail is moved together with the ring rail.
  • the distance between the anti-node ring and the lappet becomes inappropriate at or in the vicinity of the end of the thread take-up process.
  • an object of the present invention to provide an up/down-motion apparatus for driving a lappet holding angle bar in a spinning machine, which apparatus is capable of moving the ring rail and the lappet holding angle bar in such state where no obstacle is presented to satisfactory formation of a cop and which can be implemented in a simplified and inexpensive structure.
  • Another object of the present invention is to provide an up/down-motion apparatus for driving an anti-node ring holding rail in a spinning machine, which apparatus is capable of moving the ring rail and the anti-node ring holding rail in the state providing no obstacle to formation of the cop and which can be implemented in a simplified and inexpensive structure.
  • Yet another object of the present invention is to provide an up/down-motion apparatus for driving a thread guide rail in a spinning machine, which apparatus is capable of moving up and down an anti-node ring holding rail in addition to the lappet holding angle bar.
  • the present invention is directed to a spinning machine which includes a ring rail and a thread guide rail.
  • an up/down-motion apparatus for driving the thread guide rail which apparatus is comprised of an up/down-motion unit for positively moving upwardly and downwardly a supporting pillar which supports the ring rail, a pair of rotatable members of different diameters which are mounted on a machine frame corotatably in union about a same axis, a first drive means provided between the ring rail and the rotatable member of a large diameter and adapted to move together with the ring rail for rotating the rotatable member of large diameter, and a second drive means provided between the thread guide rail and the rotatable member of small diameter for translating rotation of the rotatable member of small diameter into upward/downward reciprocative motion of the thread guide rail.
  • the supporting pillar which supports the ring rail is positively moved up and down by the up/down-drive mechanism.
  • the first drive means is moved together with the ring rail, as a result of which the rotatable member of large diameter is caused to rotate in union with the rotatable member of small diameter reversibly in forward and backward directions.
  • the rotation of the rotatable member of small diameter is translated into up-and-down reciprocative motion of the thread guide rail by the second drive means such that the thread guide is moved reciprocatively in the forward and downward directions in synchronism with the motion of the ring rail.
  • the thread guide rail may be constituted by a lappet holding angle bar or an anti-node ring holding rail.
  • the up/down-motion unit may be comprised of a screw portion provided in the supporting pillar, a nut member mounted rotatably on the machine frame at a predetermined height for supporting the above-mentioned supporting pillar in the state meshing screwwise with the aforementioned screw portion, and a line shaft extending in a longitudinal direction of the machine frame for positively rotating reversibly the nut member.
  • the nut member is positively rotated reversibly in the forward and backward directions through the threaded or screw portion, whereby the ring rail is caused to move up and down together with the supporting pillar which is moved up and down in correspondence to forward and backward rotations of the nut member.
  • the thread guide rail is caused to move up and down in synchronism with the motion of the ring rail.
  • an up/down-motion apparatus for the spinning machine of the type mentioned above, in which the pair of rotatable members are constituted by pulleys of different diameters, respectively, and the first drive means is constituted by a first belt having one end secured to the ring rail and a second end secured to the pulley of large diameter, while the second drive means is comprised of a supporting pillar disposed vertically movably and having a top end to which the thread guide rail is coupled and a second belt having one end secured to a bottom end of the supporting pillar and a second end secured to the pulley of small diameter, wherein the pulley of small diameter may be formed in such a shape that the distance between the center of rotation and an outer peripheral surface varies.
  • the large-diameter pulley and the small-diameter pulley are caused to rotate reversibly in the forward and backward directions in accompanying the up-and-down motion of the ring rail through the medium of the first belt serving as the first drive means.
  • the second belt disposed between the small-diameter pulley and the thread guide rail is wound around the small-diameter pulley upon upward displacement of the ring rail while the second belt is delivered from the small-diameter pulley when the ring rail moves downwardly.
  • displacement of the thread guide rail is determined by a ratio between the diameter of the small-diameter pulley and that of the large-diameter pulley.
  • the thread guide rail can be moved such that the lower limit of every stroke (chase length) is incremented by a variable ratio in the upward direction, because of change in the diameter of the small-diameter pulley, i.e., the change in the distance between the outer periphery of the small-diameter pulley and the center of rotation thereof.
  • the present invention is further directed to a spinning machine which includes a ring rail, a lappet holding angle bar disposed at a position above the ring rail and an anti-node ring holding rail disposed substantially at a mid position between the ring rail and the lappet holding angle bar and extending in a longitudinal direction of the spinning machine.
  • an up/down-motion apparatus which includes an up/down-motion unit for positively moving upwardly and downwardly a supporting pillar which supports the ring rail, first and second rotatable assemblies each including a pair of rotatable members having different diameters and adapted to rotate in union about a same axis relative to a machine frame of the spinning machine, a first drive means provided between the ring rail and the large-diameter rotatable members of the first and second rotatable assemblies and adapted to move in union with the ring rail for thereby rotating the large-diameter rotatable members, a second drive means provided between each of the lappet holding angle bar and the anti-node ring holding rail and the small-diameter rotatable member of each of the first and second rotatable assemblies for translating rotations of the rotatable members of small diameter into up/down-motions of the lappet holding angle bar and the anti-node
  • FIG. 1 is a perspective view showing schematically the up/down-motion apparatus for a lappet holding angle bar according to the first exemplary embodiment of the invention
  • Fig. 2 is a schematic side elevational view of the same as viewed from the right-hand side in Fig. 1
  • Fig. 3 is a schematic top plan view of a spinning machine equipped with the up/down-motion apparatus according to the invention.
  • a pair of line shafts 2 at left and right sides (upper and lower sides as viewed in Fig. 3), respectively, of a machine frame 8 of a spinning machine 1 so as to extend along a longitudinal axis thereof.
  • a plurality of up/down-motion units 3 Disposed on each of the line shafts 2 are a plurality of up/down-motion units 3 with a predetermined distance therebetween (e.g. one for every twenty-fourth spindle).
  • each of the up/down-motion units 3 is comprised of a worm gear 4 fixedly mounted on the line shaft 2 so as to corotate with the line shaft 2 in union and a nut member 7 mounted screwwise on a threaded or screw portion 6a formed in a lower portion of a poker pillar 6 which serves as a supporting pole or pillar for supporting a ring rail 5.
  • the nut member 7 is supported rotatably by a bracket (not shown) at a predetermined vertical position relative to the machine frame 8 (see Fig. 2) and has an outer peripheral portion in which a worm wheel 7a adapted to mesh with the worm gear 4 is integrally formed.
  • the poker pillar 6 is supported on the machine frame 8 so as to be movable in the vertical direction.
  • the ring rail 5 is secured to the poker pillar 6 at a top end thereof by means of a bracket 9.
  • the line shafts 2, the up/down-motion unit 3 and the screw portion 6 cooperate to constitute an up/down-motion or drive means.
  • each of the line shafts 2 is operatively connected through a coupling 12 to an output shaft 11 of a gear box 10 which constitutes a driving source for the lappet holding angle bar.
  • a gear box 10 which constitutes a driving source for the lappet holding angle bar.
  • rotation of a front roller of the spinning machine is transmitted to the gear box 10 via a gear train (not shown).
  • Installed within the gear box 10 are a pair of gear trains and a switching mechanism for changing over the rotational direction of the line shaft 2 through the medium of electromagnetic clutches, although they are not shown in the figures.
  • the line shaft 6 is driven in the forward direction or in the reverse or backward direction in dependence on electrical energization and deenergization of the electromagnetic clutches provided in a pair, whereby the ring rail 5 is caused to move upwardly or downwardly.
  • the arrangement described above is basically identical with that of the apparatus disclosed in Japanese Unexamined Patent Application Publication No. 277826/1994 (JP-A-2-277826).
  • a supporting shaft 13 Secured fixedly to the machine frame 8 at a position underneath the ring rail 5 is a supporting shaft 13 which extends horizontally in the direction orthogonally to the longitudinal axis of the spinning machine.
  • a pulley 14 of a large diameter hereinafter also referred to as a large-diameter pulley or rotatable member
  • a pulley 15 of a small diameter 15 hereinafter also referred to as a small-diameter pulley or rotatable member.
  • the large-diameter pulley 14 and the small-diameter pulley 15 are implemented in an integral structure.
  • the first belt 16 Spanned between the ring rail 5 and the large-diameter pulley 14 is a first belt 16 which serves as a first driving means.
  • the first belt 16 has a first end portion secured fixedly to the ring rail 5 by an appropriate means (not shown) and a second end portion secured to the outer periphery of the large-diameter pulley 14 by a similar fixing means (not shown).
  • the machine frame 8 is equipped with a plurality of supporting columns or pillars 17 with a predetermined distance therebetween which are so supported by means of supporting brackets (not shown) that they can be moved reversively in the upwardly and downward directions , wherein a lappet holding angle bar 18 is fixedly mounted at a top end of the supporting pillars 17.
  • a lappet holding angle bar 18 is fixedly mounted at a top end of the supporting pillars 17.
  • a bracket 21 secured to the supporting pillar 17 at a bottom end thereof is a bracket 21 to which a first end portion of a second belt 22 is fixedly secured by an appropriate means, wherein the other or second end portion of the second belt 22 is secured to the outer periphery of the small-diameter pulley 15.
  • the supporting pillar 17, the bracket 21 and the second belt 22 cooperate to constitute a second driving means which serves for translating the rotation of the small-diameter pulley 15 into vertical or up/down-motion of the lappet holding angle bar 18.
  • the large-diameter pulley 14 is so dimensioned that the outer peripheral length thereof is longer than that of the up/down-motion stroke of the ring rail 5 (i.e., the extent of a range within which the ring rail 5 is moved upwardly and downwardly).
  • a dimensional relation is realized between the first belt 16 and the large-diameter pulley 14 that the first belt 16 is prevented from being taken up more than one turn by the large-diameter pulley 14 upon rotation thereof and that magnitude of angular displacement of the large-diameter pulley 14 is in proportion to the take-up or delivery length of the first belt 16.
  • the small-diameter pulley 15 is so dimensioned that the outer peripheral length thereof is greater than the up/down-motion stroke of the lappet holding angle bar 18 and that the angular displacement of the small-diameter pulley 15 is in proportion to the take-up or delivery amount of the second belt 22. More specifically, the large-diameter pulley 14 and the small-diameter pulley 15 are so dimensioned that the ratio of the diameter between the pulleys 14 and 15 assumes a predetermined value selected such that the lappet holding angle bar 18 is caused to move in the vertical direction at a predetermined rate which is smaller than that of the ring rail 5.
  • the second belt 22 is wound around the small-diameter pulley 15 in the direction opposite to the direction in which the first belt 16 is wound around the large-diameter pulley 14.
  • the large-diameter pulley 14, the small-diameter pulley 15, the first belt 16, the supporting pillar 17 and the bracket 21 mentioned above cooperate to constitute an up/down-drive mechanism 23 for moving the lappet holding angle bar 18 reversibly and reciprocatively in the upward and downward directions.
  • the number of the up/down-drive mechanism 23 to be installed actually may be same as or twice as great as that of the up/down-motion units 3.
  • the line shaft 2 is caused to rotate reversively in the forward and backward directions periodically at a predetermined time interval via the front roller (not shown) of the spinning machine and the gear box 10.
  • the forward/backward rotations of the line shaft 2 results in the corresponding reciprocative rotations of the nut member 7 by way of the worm gear 4 and the worm wheel 7a, as a result of which the poker pillar 6 having the screw portion engaging screwwise with the nut member 7 and hence the ring rail 5 secured to the top end of the poker pillar 6 are caused to move upwardly and downwardly in a reciprocative manner.
  • the small-diameter pulley 15 is urged to rotate in the direction for delivering the second belt 22 under the influence of the weight of the supporting pillar 17, the lappet holding angle bar 18 and others. Consequently, both the large-diameter pulley 14 and the small-diameter pulley 15 are caused to rotate in the counterclockwise direction as viewed in Fig. 1 as the ring rail 5 moves downwardly, whereby the first belt 16 is taken up around the large-diameter pulley 14. Furthermore, since the second belt 22 is delivered as mentioned above, the lappet holding angle bar 18 is caused to move downwardly in synchronism with the ring rail 5.
  • Figure 4 is a diagram for graphically illustrating reciprocative up/down-motions of the ring rail 5 and the lappet holding angle bar 18, wherein a curve A represents characteristically the up/down-motion of the ring rail 5 with a curve B representing that of the lappet holding angle bar 18.
  • the ratio of the up/down-motion stroke between the ring rail 5 and the lappet holding angle bar 18 is determined by the ratio of radius between the large-diameter pulley 14 and the small-diameter pulley 15.
  • the ratio of the up/down-motion stroke between the ring rail 5 and the lappet holding angle bar 18 can readily be changed by preparing a plurality of combinations of the large-diameter pulley 14 and the small-diameter pulley 15 which differ from one another in respect to the ratio in the radius and exchanging one of these combinations with another. As is indicated by solid straight lines in Fig.
  • the lower limit of the up/down-motion stroke in each cycle of reciprocative motion (i.e., chase length) of the ring rail 5 increases at a predetermined constant ratio during a period beginning at the start of thread winding and ending at the end of the thread winding, the lower limit of the range within which the lappet holding angle bar 18 is reciprocated increases correspondingly at a predetermined constant ratio.
  • the ring rail 5 is supported by the poker pillar 6 having the screw or threaded portion 6a which is screwwise engaged by the nut member 7.
  • the poker pillar 6 is positively moved upwardly under the action of the threaded portion 6a upon forward rotation of the nut member 7 driven positively in the forward or backward direction by the line shaft 2, while the poker pillar 6 is positively moved downwardly under the action of the threaded portion 6a when the nut member 7 is rotated in the backward direction.
  • the up/down-motion speed of the ring rail 5 increases, the up/down-motion of the ring rail 5 is effected with high accuracy without suffering the so-called breather or pause phenomenon, whereby the cop can be formed without suffering any noticeable disturbance.
  • the lappet holding angle bar 18 driven by the ring rail 5 can be moved upwardly and downwardly in the stable state.
  • the downward motion of the lappet holding angle bar 18 is effected rather passive or negatively under the gravity, as mentioned hereinbefore, there may take place the breather or pause phenomenon, which however does not affect any appreciable influence to the formation of cop.
  • the inventive arrangement of the large-diameter pulley 14, the small-diameter pulley 15, the belts 16 and 22 and the bracket 21 described above contributes to simplification as well as inexpensive realization of the apparatus.
  • a coil spring may be mounted to the supporting shaft 13 so as to bias the large- and small-diameter pulleys 14, 15 in a counterclockwise direction, that is, in a direction in which the large-diameter pulley 14 is urged to take up the belt 16 thereon and the small-diameter pulley 15 is urged to unwind the belt 22 therefrom.
  • the small-diameter pulley 15 may be formed in a cam-like shape in which the distance between the outer peripheral surface thereof and the center of rotation changes in and along the rotational direction, as is illustrated in Fig. 5.
  • the ballooning should preferably be small in this operation phase.
  • the stroke of the reciprocative up/down-motion of the lappet 20 should be maintained at as small a value as possible in the initial take-up phase so that the lappet 20 is moved in synchronism with the ring rail 5 after lapse of a certain time from the start of spinning operation. In this manner, the ballooning can be made small during the initial thread take-up period.
  • the small-diameter pulley 15 may preferably be so formed that the distance from the center of rotation to the outer peripheral surface of the small-diameter pulley 15 decreases progressively from the position corresponding to the start of the thread take-up operation and then increases gradually to a constant value.
  • the small-diameter pulley 15 may be mounted on the supporting shaft 13 at an off-center position thereof substantially to the same effect as mentioned above.
  • the small-diameter pulley 15 may be formed circularly and mounted on the supporting shaft 13 at a center position thereof, while the large-diameter pulley 14 is imparted with a cam configuration or formed in an eccentrical shape.
  • both the large-diameter pulley 14 and the small-diameter pulley 15 may be disposed at positions corresponding to the range of up-and-down motion of the ring rail 5. Furthermore, it goes without saying that the supporting shaft 13 may be so disposed as to extend in parallel with the longitudinal axis of the spinning machine 1.
  • a pinion 24 may be so mounted as to corotate together with the small-diameter pulley 15 instead of the large-diameter pulley 14, while a rack 25 serving as the first driving means may be provided to mesh with the pinion 24 for moving in union with the ring rail 5.
  • the pinion 24 is positively rotated via the rack 25, as the ring rail 5 moves upwardly or downwardly.
  • the pulley 15 and the pinion 24 and hence the lappet holding angle bar 18 are positively caused to rotate in concurrence with the ring rail 5, whereby up-and-down motion of the lappet 20 can be realized with high reliability and stability even in the case where the lappet holding angle bar 18, the supporting pillar 17 and others are formed of a material of light weight.
  • such arrangement may equally be adopted in which the rotatable member of a small diameter is constituted by a pinion with the second driving means being realized by a rack, while the rotatable member of a large diameter is constituted by the large-diameter pulley 14 with the first driving means being constituted by the belt.
  • both of the rotatable members may be constituted by pinions, respectively, with the first and second driving means being implemented in the form of racks, respectively.
  • the large-diameter pulley 14 and the small-diameter pulley 15 may be formed as separate members, respectively, wherein both the large-diameter pulley 14 and the small-diameter pulley 15 are interconnected by a retainer pin or the like so that they are supported on the supporting shaft 13 so as to corotate in union with each other. It is also possible to mount removably a pair of rotatable members on a rotatable shaft supported rotatably on the machine frame 8 so that the rotatable members can corotate in union. In this case, the ratio of the up/down-motion stroke between the ring rail 5 and the lappet holding angle bar 18 can be changed by replacing one of the pulleys or rotatable members by another one.
  • the line shaft 2 may be disconnected from the front roller of the spinning machine and rotationally driven by a reversible servo motor through a servo driver. Moreover, the input power from the front roller of the spinning machine and that of the reversible motor may be combined by a differential gear to thereby derive the driving power for the line shaft 2 from the differential gear.
  • the driving means for driving positively with high reliability the ring rail 5 in both the upward and downward directions may be constituted by a rack formed in a lower portion of the poker pillar 6 which supports the ring rail 5 and a pinion mounted on the line shaft 2 in place of the worm gear 4, as is disclosed in Utility Model Publication Japanese No. 29334/1991.
  • a spur gear may be formed in the outer periphery of the nut member 7 in place of the worm wheel 7a with the line shaft 2 being replaced by a rack extending in parallel with the longitudinal axis of the spinning machine and adapted to be driven reciprocatively in the longitudinal direction, as is disclosed in Japanese Utility Model Publication No. 32542/1993.
  • the cord such as the belt which constitutes the first and second driving means, respectively
  • a flat or plain belt a V-belt (i.e., belt of a V-like section), a round belt, a toothed belt, a chain, a tape, a rope or the like which can easily be bent and arcuately wound around a rotatable member, which in turn may be realized in the form of a pulley, a toothed pulley, a sprocket or the like on which the cord mentioned above can be wound or suspended and which serves as a rotatable guide member.
  • the up/down-motion stroke of the lappet holding angle bar can be made variable even when that of the ring rail is constant, whereby possibility of the thread being broken can positively be suppressed to a minimum because the up/down-motion stroke of the lappet holding angle bar can be made small in the initial thread take-up phase.
  • the thread guide rail is constituted by a rail adapted to support or hold anti-node rings.
  • the instant embodiment differs from the up/down-motion apparatus shown in Fig. 1 primarily in that an anti-node ring holding rail 26 is employed in place of the lappet holding angle bar 18 and thus the top end of a supporting pillar 37 of the up/down-drive mechanism 30 is coupled to the anti-node ring holding rail 26.
  • Each of the up/down-drive mechanisms 30 which are provided in the same number as the up/down-motion units 3 or twice as many as the up/down-motion unit 3 is composed of the members denoted by reference numerals 31 to 37, which correspond, respectively, to the supporting shaft 13, the large-diameter pulley 14, the small-diameter pulley 15, the first belt 16, the bracket 21, the second belt 22 and the supporting pillar 17 shown in Fig. 1.
  • the ratio in diameter between the first pulley 32 and the second pulley 33 in the up/down-motion apparatus according to the instant embodiment of the invention slightly differs from the corresponding ratio between the large-diameter pulley 14 and the small-diameter pulley 15 in the apparatus according to the preceding embodiment of the invention. It should however be noted that the mutual interconnecting relation among the individual members are substantially identical with in the apparatus according to the preceding embodiment.
  • the ratio in diameter between the first pulley 32 and the second pulley 33 is so selected as to be a predetermined value such that the up-and-down motion of the anti-node ring holding rail 26 assumes a predetermined value which is greater than that of the lappet holding angle bar.
  • the anti-node ring holding rail 26 is supported to be vertically movable by means of the belt 36 constituting the driving means the bracket 35 and the supporting pillar 37.
  • the anti-node ring holding rail 26 is so disposed as to extend in parallel with the ring rail 5 over a substantially whole length of the ring rail 5 and equipped with the anti-node rings 27 (only one of which is shown) at the position corresponding to the lappets.
  • Operation of the apparatus implemented in the structure described above is substantially same as that of the up/down-motion apparatus for driving the lappet holding angle bar in that the anti-node ring holding rail 26 is moved reciprocatively in the vertical direction in place of the lappet holding angle bar as the ring rail 5 moves upwardly and downwardly. Except for this difference, operation of the up/down-motion apparatus according to the instant embodiment of the invention is substantially same as that of preceding embodiment. Accordingly, repetition of the description directed to the operation will be unnecessary. In this manner, the anti-node ring holding rail 26 can reciprocatively be moved upwardly and downwardly along appropriate paths from the start of the take-up operation to the end thereof nevertheless of simplified structure.
  • the apparatus for effectuating the up-and-down motion of the anti-node ring holding rail 26 by means of the ring rail 5 is not limited to the structure shown in Fig. 7 but is susceptible to the various modifications as in the case of the embodiment described hereinbefore in conjunction with Figs. 1 to 3. In this conjunction it will be sufficient to add that the term “lappet holding angle bar” be replaced by the term "anti-node ring holding rail” in the descriptions directed to the modifications of the apparatus shown in Figs. 1 to 3.
  • the apparatus according to the instant embodiment may be modified such that the pinion 29 is so provided as to corotate with the first pulley 32 in union in place of the large-diameter pulley 32 for the lappet holding angle bar so that the rack 28 secured to the ring rail 5 in the state meshing with the pinion 29 can move in union with the ring rail 5.
  • the pinion 29 is positively rotated by way of the rack 29 as the ring rail 5 moves reciprocatively in the vertical direction.
  • the first pulley 32 is caused to move together with the ring rail 5 and the anti-node ring holding rail 26 in concurrence with the latter without fail even in the case where the anti-node ring holding rail 26 and the supporting pillar 37 are formed of a material of light weight.
  • Figure 9 shows yet another embodiment of the invention according to which both the lappet holding angle bar and the anti-node ring holding rail are caused to move reciprocatively in the vertical direction.
  • the up/down-motion apparatus according to the instant embodiment, not only the lappet holding angle bar 18 but also the anti-node ring holding rail 26 disposed in parallel with the ring rail 5 at an intermediate position between the ring rail 5 and the lappet holding angle bar 18 is caused to move reciprocatively in synchronism with the ring rail 5.
  • the up-and-down motion apparatus for driving the lappet holding angle bar and the anti-node ring holding rail by way of the ring rail 5 is not limited to the structure shown in Fig. 9 but susceptible to various modifications and changes as described hereinbefore in conjunction with Figs. 1 to 3 and Fig. 7. In that case, it is sufficient for understanding these modifications to read the term "lappet holding angle bar” or "anti-node ring holding rail” as "lappet holding angle bar and anti-node ring guide rail” in the descriptions made hereinbefore in conjunction with Figs. 1 to 3 and Fig. 7.
  • a poker pillar supporting a ring rail has a screw portion which is in screw thread engagement with a nut member supported rotatably on a frame of the spinning machine at a predetermined height position.
  • the nut member has an outer periphery formed integrally with a second toothed wheel meshing with the first toothed wheel.
  • An up/down-motion apparatus for the spinning machine includes a pulley of larger diameter and a pulley of smaller diameter both mounted corotatably on a supporting shaft supported on the machine frame, a first belt secured to the ring rail at a first end and the larger diameter pulley of large diameter at a second end, a thread guide rail mounted fixedly at a top end of a supporting pillar, a bracket mounted on the supporting pillar at a bottom end thereof, and a second belt having a first end secured to the smaller diameter pulley.
  • the thread guide rail is constituted by a lappet holding angle bar or an anti-node ring holding rail. Alternatively, both the lappet holding angle bar and the anti-node ring holding rail can be moved upwardly and downwardly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19950103751 1994-03-17 1995-03-15 Vorrichtung zur Auf- und Abbewegung zum Antreiben der Fadenführerbank in einer Spinnmaschine Expired - Lifetime EP0672766B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP4747194 1994-03-17
JP4747194A JPH07258926A (ja) 1994-03-17 1994-03-17 紡機のアンチノードリング昇降装置
JP47471/94 1994-03-17
JP72288/94 1994-04-11
JP7228894 1994-04-11
JP07228894A JP3509176B2 (ja) 1994-04-11 1994-04-11 紡機のリフティング装置

Publications (2)

Publication Number Publication Date
EP0672766A1 true EP0672766A1 (de) 1995-09-20
EP0672766B1 EP0672766B1 (de) 2001-08-22

Family

ID=26387645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950103751 Expired - Lifetime EP0672766B1 (de) 1994-03-17 1995-03-15 Vorrichtung zur Auf- und Abbewegung zum Antreiben der Fadenführerbank in einer Spinnmaschine

Country Status (4)

Country Link
EP (1) EP0672766B1 (de)
CN (1) CN1062918C (de)
DE (1) DE69522248T2 (de)
TW (1) TW426048U (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19815617C1 (de) * 1998-04-07 1999-08-19 Zinser Textilmaschinen Gmbh Hubvorrichtung
EP0953661A2 (de) * 1998-04-28 1999-11-03 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Verfahren zur Spulenbildung für eine Spinnmaschine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101476617B (zh) * 2009-01-16 2010-12-01 许国强 差动直线往复机构
CN102021687B (zh) * 2010-11-16 2012-11-14 江苏新芳纺织集团有限公司 细纱机钢领板驱动装置
CN102776616B (zh) * 2012-07-31 2014-06-11 太仓仕禾线网制造有限公司 捻线机的卷线装置
CN103334185B (zh) * 2013-07-08 2016-02-17 浙江金鹰股份有限公司 一种亚麻细纱机
CN103995425B (zh) * 2013-12-03 2016-01-06 芜湖市安曼特微显示科技有限公司 一种投影机升降控制装置
CN106637547A (zh) * 2015-10-30 2017-05-10 北京新长征天高智机科技有限公司 一种轮组式双路往复升降装置
CN108505166B (zh) * 2018-05-29 2024-01-05 台嘉玻璃纤维有限公司 一种玻璃纤维复合捻线机导纱架升降装置

Citations (5)

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Publication number Priority date Publication date Assignee Title
US2653774A (en) * 1949-11-21 1953-09-29 Fletcher Works Inc Machine for making yarn packages
GB952644A (en) * 1961-03-09 1964-03-18 Tweedales And Smalley Ltd Improvements in textile machines
EP0308823A1 (de) * 1987-09-23 1989-03-29 Zinser Textilmaschinen GmbH Hubvorrichtung für Ringbänke
DE3917406A1 (de) * 1989-05-29 1990-12-06 Zinser Textilmaschinen Gmbh Antriebsvorrichtung fuer mindestens eine ringbank und fuer baenke von balloneinengungsringen und/oder fadenfuehrern einer ringspinn- oder zwirnmaschine
DE4106290A1 (de) * 1991-02-28 1992-09-03 Rieter Ag Maschf Spinnvorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653774A (en) * 1949-11-21 1953-09-29 Fletcher Works Inc Machine for making yarn packages
GB952644A (en) * 1961-03-09 1964-03-18 Tweedales And Smalley Ltd Improvements in textile machines
EP0308823A1 (de) * 1987-09-23 1989-03-29 Zinser Textilmaschinen GmbH Hubvorrichtung für Ringbänke
JPH01148820A (ja) * 1987-09-23 1989-06-12 Zinser Textilmas Gmbh リングレール用リフテイング装置
DE3917406A1 (de) * 1989-05-29 1990-12-06 Zinser Textilmaschinen Gmbh Antriebsvorrichtung fuer mindestens eine ringbank und fuer baenke von balloneinengungsringen und/oder fadenfuehrern einer ringspinn- oder zwirnmaschine
DE4106290A1 (de) * 1991-02-28 1992-09-03 Rieter Ag Maschf Spinnvorrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19815617C1 (de) * 1998-04-07 1999-08-19 Zinser Textilmaschinen Gmbh Hubvorrichtung
EP0953661A2 (de) * 1998-04-28 1999-11-03 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Verfahren zur Spulenbildung für eine Spinnmaschine
EP0953661A3 (de) * 1998-04-28 1999-12-22 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Verfahren zur Spulenbildung für eine Spinnmaschine

Also Published As

Publication number Publication date
CN1112611A (zh) 1995-11-29
DE69522248D1 (de) 2001-09-27
CN1062918C (zh) 2001-03-07
DE69522248T2 (de) 2002-05-08
TW426048U (en) 2001-03-11
EP0672766B1 (de) 2001-08-22

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