US3192741A - Circular knitting machine for the production of partially reinforced hose goods and method therefor - Google Patents

Circular knitting machine for the production of partially reinforced hose goods and method therefor Download PDF

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Publication number
US3192741A
US3192741A US114513A US11451361A US3192741A US 3192741 A US3192741 A US 3192741A US 114513 A US114513 A US 114513A US 11451361 A US11451361 A US 11451361A US 3192741 A US3192741 A US 3192741A
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Prior art keywords
thread
reinforcement
cam
cylinder
cam system
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US114513A
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English (en)
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Hanel Ewald
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Rieter Ingolstadt GmbH
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Schubert und Salzer Maschinenfabrik AG
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66—Devices for determining or controlling patterns ; Program-control arrangements
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/34—Cam systems or assemblies for operating knitting instruments for dials
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/18—Circular knitting machines with independently-movable needles with provision for splicing by incorporating reinforcing threads

Definitions

  • This invention relates to a method of circular knitting of partially reinforced seamless hose goods, particularly of fine hose with reinforced heel and toe, and perhaps reinforced sole, as well as the circular knitting machine serving to carry out this method.
  • a production method of heeland toe-reinforcement with endless reinforcement thread by the so-called reciprocatory movements is well known.
  • the circular knitting machine executes a reciprocatory movement corresponding to the width of the reinforced part, which involves a decrease of the working speed as well as a constant reversal of the direction of iovement of the cam ring in machines with stationary cylinder, or of the cylinder in machines with revolving cylinder.
  • the revolving cam ring or cylin der at its reversal position in each case must be braked to a standstill and then in the opposite direction again be accelerated to its working speed. This involves a great degree of pulsation in the power requirement of the machine as well as a decrease of the production because of the periodically decreased working speed.
  • the purpose of the invention is accordingly to circularly knit a seamless hose, if possible in the quality of a cotton hose, by means of latch needles or point needles, with endless reinforcement thread and to avoid the disadvantages of the hitherto known processes.
  • the base thread as well as the reinforcement thread are first of all jointly knitted. Beginning at the endmargin of the reinforcement, the base thread is then alone knitted further, while the reinforcement thread is knitted back alone to the starting margin of the reinforcement, from where subsequently it forms a course with the base thread, so that in the reinforced part one course formed of base thread and reinforcement thread alternates with a course of the reinforcement thread alone.
  • two cam systems one for the base thread and reinforcement thread, the other for the reinforcement thread only, operate with reference to the cylinder relative movements in opposite direction to one another, under constant maintenance of their direction of rotation and speed. In doing so it is immaterial whether the cylinder stands still or rotates.
  • the cam system for the base thread and reinforcement thread runs constantly and with constant speed in the one direction and the cam system for the reinforcement thread runs constantly and with the same speed in the opposite direction around the cylinder.
  • the cam system for the base thread and reinforcement thread is stationary, whereas the cam system for the reinforcement thread re volves constantly and with constant speed, which corresponds to at least double the cylinder speed or a higher multiple of the cylinder speed, rotating in the same direction of rotation as the cylinder.
  • the reinforcement thread is knitted without reciprocatory movements, and so, without reversal of the revolving cylinder or cam ring, at constant working speed. Cutting-off floated threads at the margins of the reinforcement part is eliminated.
  • endless knitting in of the reinforcement thread the further advantage is obtained as compared with hitherto known reciprocatory movements: Since in the reinforcement part alternates always one course knitted from the base thread and the reinforcement thread with one course knitted only from the reinforcement thread, and therefore in the reinforced part twice as many courses are knitted as in the unreiuforced part, the reinforced hose part becomes longer than the unreinforced part.
  • heel and toe perhaps also the sole, take on, while knitting at undiminished speed, a form which in previous circular knitting processes could only be obtained either after the knitting through stretching of the reinforced meshes in the sole part and shrinking of the meshes in the upper-foot-part by forming and plasticizing, or, during the knitting, through development of the heel by the retarded reciprocatory movements above referred to.
  • the stitch pattern was distorted and warped.
  • the less elastic reinforced meshes are not stretched, but merely a slight shaping-out, without much strain of individual mesh rows, sufiices.
  • the process in accordance with this invention and the circular knitting machine for the carrying out of this process differs from this known device in that a tubular article is produced for the production of a seamless hose, in which a reinforcement thread is, as distinguished from the known wrap-stitch knitting method, used up in knitting over approximately one half or more of the cylinder circumference.
  • the reinforcement thread guide revolves with a second revolving cam system, during the knitting of the course formed alone from the reinforcement thread, over the region of the reinforcement section.
  • FIG. 1 a schematic representation of the total arrangement in perspective lateral view
  • FIGS. 2 and 3 are schematic representations of the successive movements between cam systems and cylinders, in top view;
  • FIG. 4 is a side elevation of a hose with reinforced foot as produced by the invention.
  • FIG. 5 is a schematic representation of the build-up of the base--and reinforcement-rows
  • FIG. 6 shows as a form of circular knitting machine constructed in accordance with the invention, in longitudinal sect-ion
  • FIGS. 7, 7a and 7b show in a developed view of the camrsystems and of the needle rim seen from the inside, the various working phases of t re process in accordance with the invention
  • FIGS. 8 and 9 are pictures of meshes, which show the linkage in the reinforced part
  • FIG. 10 shows in perspective a detail from FIG. 6 the arrangement of the thread guide for the reinforcement thread
  • FIGS.-11 and .12 show the manner of working of the sinker cam in conformity with the FIGS. 7:: and 7;
  • FIG. 13 shows the sinker cam in cut-out in its position during the knitting of the unreinforced hose parts
  • FIG. 14 shows in longitudinal section the upper part of a circular knitting machine as in FIG. 6, however in modified form
  • FIG. 15 shows in vertical section the revolving cam system for the reinforcement thread in enlarged representation
  • FIG. 16 is a schematic plan view of the sinker cam during the disengaging of the revolving sinker cam in accordance with the embodiment of FIG. 14;
  • FIG. 17 is an enlarged representation from FIG. 16 with (disengaged) sinker cam for the reinforcement thread;
  • FIG. 18 shows a similar representation as in FIG. 16, however during the reengagement of the revolving sinker cam for the reinforcement thread;
  • FIG.-19 shows an enlarged fragmentary perspective view of the apparatus of FIG. 18;
  • FIG. 20 shows in perspective the control device for the switching-oft and switching-on of the revolving sinker cam
  • FIG. 21 shows in section the drive of the thread guide for the reinforcement thread in enlarged representation in accordance with FIG. 14;
  • FIG. 22 shows the device in vertical section positioned above the cylinder and the dial disc, for the supply of the reinforcement thread to the periodically revolving reinforcement guide;
  • FIG. 23 (which is on the sheet bearing FIG. 7) is a side view of a needle and its actuating jack;
  • FIG. 24 (which is on the sheet bearing FIG. 7a) is a side View of a form of needle with a pair of butts, and an actuating jack with numerous butts;
  • FIG. 25 (which is on the sheet bearing FIG. 7b) is a side view of a needle and its actuating jack.
  • FIGS. 1, 3, 6 and 7 there is shown a circular knitting machine with rotating needle cylinder, individually actuated latch needles, dial disc, sinkers and transfer jacks.
  • FIG. 1 is shown the needle-cylinder Z of the circular knitting machine in accordance with the invention schematically with the arrangement and movement of the cam systemsI and II.
  • the cylinder Z is adapted to revolve at uniform speed in the direction of the arrow P.
  • longitudinal grooves 2' of the cylinder Z are slidably seated the latch needles 2 which obtain their knitting movement by needle butts 3' and 3" through the two cam systems I and II respectively positioned at levels one above the other.
  • the upper cam system I is stationary.
  • the lower cam system II is positioned on a cam ring revolving around the cylinder.
  • the stationary cam system I operates needles 2 by the needle butts 3 and serves for the knitting of the base thread G in the direction of the arrow P over the entire cylinder-circumference and, in addition, serves for the knitting of the reinforcement thread S in the direction of the arrow P over the sector AB of needle-cylinder Z, which corresponds to the maximal width of the reinforced hose part in the heel, sole or toe. It should be noted that at only those needles lying in sector A-B are both butts 3' and 3". The remaining needles have only butts 3'.
  • Cam system II revolves in the direction of turning P of the cylinder Z with uniform speed which may be designated v wherein this corresponds to at least the double or a multiple of cylinder speed 1
  • Cam system II operates only those needles 2 which have needle butts 3". These needles which have butts 3' and butts 3", are positioned over the sector A-B of the needle-cylinder Z for the knitting of the reinforced hose-part.
  • FIG. 3 schematically in top view.
  • the base thread guide G assigned to the stationary cam system I, is likewise stationary and rigidly connected with the cam system I.
  • the reinforcement thread guide S assigned to the cam system II, works as trailing thread guide alternately together with the cam system I and the cam system II.
  • base thread G (FIG. 1) and reinforcement thread S are first jointly knitted from A to B in the direction P During this operation the reinforced thread guide S is stationed in a fixed position adjacent the base thread guide G. At the end margin B of the reinforcement, the reinforcement-thread remains at the margin needle; and, for a moment, reinforced thread is drawn from its spool (FIG. 22) without any knitting thereof.
  • FIGS. 4 and show schematically the formation row by row of a hose and of a tube in which the base thread G was continuously knitted over the entire cylinder-circumference, While the reinforcement part of the reinforcement thread S forms in each case one row together with the base thread and an intermediary row alone without the base thread.
  • FIGS. 8 and 9 show illustrations of the meshes in the reinforced and unreinforced hose part.
  • the courses formed only from the base-thread G because of the level schematic drawing, are twice as large as the courses formed from the reinforcement-thread 8.
  • the courses are all equally large, so that a bulge in the reinforced part is attained, since here in this area twice as many courses as in the not-reinforced hose-part were knitted.
  • FIG. 8 shows the partial binding-in of the reinforcement-thread at the margin of the reinforcement
  • FIG. 9 the complete binding-in of the same, as is hitherto possible only on a full-fashioned hosiery machine (straight-bar knitting machine).
  • FIG. 6 shows the upper part of such a circular knitting machine in accordance with the invention, which is positioned on a machine frame of known construction, not shown in the drawings and not part of the invention and therefore not described here in detail.
  • the needle-cylinder Z is mounted on a further cylinder Z revolving with it, provided with jacks 4.
  • the innersleeve 5 of the cylinder Z is driven by the cone-wheelrim 6.
  • Spur-Wheel rim 6 is integral with the cone wheel and drives the spur-wheel 7.
  • Coupling St? is connected to the spur-wheel 7 through a conventional clutch arrangement and is also connected to shaft 8 so as to impart rotation thereto when the clutch arrangement is in the engaged condition.
  • Means, not shown, are provided to provide the clutch arrangement is engaged condition when knitting reinforcement and is in disen aged condition when knitting a length of hose without reinforcement.
  • the shaft 8 passes through the frame 13 and is journaled in the sleeve of the spur-wheel 7.
  • the shaft 8 drives, by gear 9, the ring 90 carrying the revolving cam system 11, further by the wheel 14) and the toothed rim 1%, the revolving sinker cam 16, as well as the gear 11, the ring gear 110 together with the reinforcement thread guide S positioned on it.
  • the cam system I as well as the basethread-guide G are stationarily positioned on the frame 13.
  • those concerned with the Working-out of the reinforcement have at least a further needle-butt 3".
  • the needle-butt 3 works together with the cam system I and the needle-butt 3 with the cam system II.
  • the sinkers 14 have one butt 14' for the actuation of the base-row and a further butt 14" for the actuation of the course formed by the reinforcement-thread alone by means of the sinker cam 16 synchronously revolving with the cam system II.
  • the other sinker cam 17 Works together with the cam system I and therefore is likewise stationarily connected with the frame 13. All revolving parts are jointly driven by the bevel gear 6 and the shaft 8, as described above.
  • the sinker cam 16 revolve together with the cam system H and the reinforcement thread guide S with double the cylinder speed.
  • FIG. 10 represents a detail from FIG. 6 in perspective view.
  • a ring 111 On the ring gear Mil, driven by shaft 8 and the gear 11, is mounted a ring 111, on which is slidably positioned the reinforcement-thread-guide S, for example developed as trailing-thread-guide.
  • a spring 20 presses the thread guide S against the ring 111, so that a dragging of the thread-guide S takes place through the revolving gear 119 via the ring 111.
  • the reinforcement-thrcad-guide S is held back at the cam system I, and slides on the ring 111 whichturns constantly with the speed of the cam system II.
  • the lower cylinder 2 is provided with jacks 4 mounted on the cylinder Z as the needles 2 are mounted on the cylinder Z.
  • the jacks 4 cooperate with the needles 2, in a manner generally known in the art, to facilitate the knitting operation, and in addition perform further function as is shortly to be described.
  • FIGS. 7, 7a, and 7b are developments of the cylindrical parts of the knitting machine corresponding, respectively, to various steps of the operation.
  • the development is viewed from within the cylinders Z and Z
  • the section A-B the reinforcing thread S and base thread G
  • the position of the hooks of the needles 2 the direction of rotation of the cylinder (arrow P)
  • the needle butts 3 the stationary cam system I which cooperates with the needle butts 3', the needle butts 3
  • the cam system II which moves in the direction of the cylinder with twice the speed of the cylinder and which cooperates with the needle butts 3".
  • the jacks 4 are mounted on or cooperate with parts mounted on the cylinder Z. Also shown in the developments, is the cylinder 2., and parts associated therewith. As noted above, mounted on the cylinder Z are the jacks 4. These jacks are provided with jack butts according to the position of the jacks on the cylinder Z All of the jacks have jack butts 41 and 42 (see FIG. 7 and the figure at the right thereof, namely, FIG. 23) and these jack butts are for control of the knitting when reinforcement thread is not knit into the fabric. The jacks in the section A-B are provided with jack butts 4 for controlling the knitting of reinforcement thread. The jack butts 4 include jack butts 4tll4l4, and these are distributed so as to provide for the knitting of the reinforcing thread to various fractions of the circumference of the knit article.
  • jack cams are provided, and for cooperation with the jack butts dill-414, jack slides are provided.
  • the jack cams and jack slides are stationary.
  • the jack cam e and draw-off cam c cooperate with the operation at cam station I.
  • the jack slides M include the individual slides 171 -177 4 and are at a fixed location adjacent the cylinder 2,, while at the same time being movable into and out of the operative position wherein they are set to engage the jack cams 401-414.
  • Jack slides of the group M are placed in 'operative position when the reinforcement thread is to be knit. More particularly, the jack slides M are for cooperation with the jack butts 401-414 to provide the knitting of the base thread and the reinforcing thread in a single course. Operation of the jack slides M is further described below.
  • jack slides for cooperation with the cam system II.
  • These jack slides include the jack slide 2 and draw-olf slide c, and the jack slides M
  • the operation of the jack slides corresponds with the operation of jack slides e, c and M and slides M like slides M are at a fixed position about the circumference of the cylinder Z and are movable into and out of an operative position wherein they are disposed for engagement by the jack butts 401-41 1.
  • the cylinder section A-B is passing the jack cams e and c and the jack slides M and base thread and reinforcement thread are being knit into a single course.
  • the welt is knitted with the aid of the dial disc and the transfer jacks in the usual manner and transferred and subsequently the hose-length worked.
  • several cam systems I with a corresponding number of base thread feeds G, so that in each cylinder rotation several courses are formed.
  • the shaft 8 is, through the coupling 80, separated from the gear 7, so that the cam system II, the sinker cam 16 and the reinforcement-thread-guide S' are in inoperative position.
  • the sinker cam 16 according to FIGS. 11, 12 and 13, is radially displaceable positioned on the slide 161 and occupies during the knitting of the hose-length the position shown in FIG. 13.
  • the sinker butts 14 travel behind the sinker cam 16, without being engaged by it.
  • the sinkers 14 may then unhindered follow the radial movement imparted by the stationary sinker cam 17.
  • the slide 161 is operated through a customary cam means, for example through a steering cam 163, as it is schematically indicated in FIG. 13, or through a roller or the like, mounted on pin 162.
  • a customary cam means for example through a steering cam 163, as it is schematically indicated in FIG. 13, or through a roller or the like, mounted on pin 162.
  • the cam system H stands still and is Withdrawn from the path of the needle butts 3".
  • This device for the withdrawal of the cam system 11 is not shown in detail in FIG. 6. ample later described in the modification of the invention It may be a known device, as for CX- o in FIG. 15.
  • the reinforcement thread guide S is stopped through the buffer 21 (FIG. 10).
  • cam system I At the start of the knitting of the reinforced foot-parts of the hose, only one cam system I can be in operation.
  • the coupling 80 is then engaged to rotate shaft 8, the sinker cam 16 drawn-back and the cam system H advanced into the path of the needle-butts 3", so that the knitting process in accordance with the invention may be carried out.
  • the jack butts .2 engage the jack cams e whereupon the needles 2 are raised to just below the level a where the needle butts 3' are at a level for actuation by the cam f of cam station I.
  • the needle butts 3' pass through the cam station I to cast-01f b and knitting in the usual manner and without reinforcement is performed.
  • the jack slides M do not operate, as the jacks 4 at the section of the cylinder under consideration have no jack butts for cooperation with the slides M
  • the jack cam e and draw-off 0 cooperate respectively with the jack butts 42 and 41 to provide the needles 2 in position for the knitting at cam station I.
  • FIG. 7a The start of the knitting of the reinforced foot-parts in the hose is indicated in FIG. 7a.
  • the cam system H is switched-on and revolves with double thecylinder speed. Since it is just outside of the K1? Sector of the needlecylinder Z, where the needles 2 have no butts 3", the cam system H revolves freely at first, until it has overtaken the needles 2 with butts 3" revolving with the cylinder Z (FIG. 7).
  • the threadguide for the reinforcement-thread S is held stationary by the bufier 21 (FIG. 10), beside the thread-guide for the base-thread G, as shown in FIG. 7a.
  • Base-thread G and reinforcement-thread S now knit with the stationary cam system I the course which is formed jointly by the basethread and reinforcement-thread.
  • the jack butt 42 of the jacks 4 positioned under the needles. in the cylinder Z.,, and the cam f all needles 2 are lifted so high that they grasp the base-thread G and subsequently pass through thecam system I.
  • the jacks 4 positioned in the cylinder-sector XE for the knitting of the reinforced hose parts have additional jack butts 401-414 which in each case cooperate with the jack slides M to simultaneously knit the reinforcing threads.
  • the jack slides M as noted above, are at a stationary position with respect to the circumference of the cylinder and are movable between a butt engaging position and an inoperative or retracted position.
  • the jack slides M which includes the jack slides 771 -111 can be provided so that they are individually selectively movable into and out of the retracted position in suitable time sequence with respect to cylinder rotation to cooperate with the jack butts 401-414 to provide a desired pattern for the reinforcement thread.
  • the operation of the jack slides as just described can be provided by means known in the art.
  • jack slides in the operative position are shown in full lines, whereas jack slides in the retracted or inoperative position are shown in dashed lines.
  • FIG. 7a of the jack slides M the slide m is in the operative position and slides m m are in the inoperative position.
  • jacks 4 having jack butts 401 are raised by response to cooperation of the jack butt 401 and the slide m to a level higher than that corre-' sponding to the cooperation of the jack butts 42 and cam e, namely so that the needles 2 responding to such action are raised to above the level a.
  • the needles grasp not only the base thread G but the reinforcement thread S as well.
  • the reinforcement thread guide S is stationaryjust behind the base thread guide G and hence the reinforcement thread is available for the knit ting.
  • the knitting operation at station I is then performed in the usual manner, but the course section being knit includes the two threads.
  • the needles 2, selected for the reinforcement have just finished the course formed by the baseand reinforcement-thread.
  • the reinforcement-thread-guide S remains for a time at the cam system I, until it is overtaken by the cam system II at which time it moves on with the cam station II. Since only the jack slide m is in operative position, the needles 2 whose jacks do not possess any jack butt 401, are not brought to above the level a, and therefore cannot catch the reinforcementthread S, so that now at station I, only the base thread is being knit.
  • the needles 2 in the cam system I After the needles 2 in the cam system I have passed through the cast-off position b, they pass through a station where there is positioned jack cam e, draw-01f cam c and the jack slides M At this station, the needles 2 are positioned for the course, which is formed by the reinforcement-thread alone by means of the revolving cam system II.
  • the operation of the jack slides, etc. at the station including slides M is similar to that occurring at the station including slides M
  • the needles selected are brought to a level a and remain there, until they are withdrawn by the cam system II (FIG. 7), which acts on the butts 3" of the needles 2, overtaking the cylinder in the sector E3
  • the operations indicated in'FIG. 7 fit in with those shown in FIG. 7b.
  • the cylinder-sector E in whose range the reinforcement is worked, has passed the stationary cam system I and also stationary jack-slides M and M New at the cam system I the base-thread alone is knitted.
  • the cam system II revolving with double the speed of the cylinder has overtaken the butts 3" of the needles 2 and in passing the cam system I has taken with it the reinforcement thread guide S (FIG. 7).
  • the buffer 21 (FIG. 10) is. drawn-back for a short span of time through the pivoted lever 22, so that the thread-guide for the reinforcement thread S, sliding up to now on the turning ring 111, is gripped by the pressure of the spring 20 and revolves with the cam system H.
  • the buffer 21 is immediately again swung into its original position as shown in FIG. 10, so that the threadguide for the reinforcement-thread S is again stopped against the buffer 21 after one revolution, while the cam system II revolves alone with constant speed v
  • the needles which have not been brought into the clearing position a (to above the level a) by means of the jack slides M are withdrawn by the slope d of the cam 98 (at cam system II), before they can pick up the reinforcement-thread S.
  • the selected needles 2 in the clearing position a catch the reinforcement-thread S and knit it in the cam system II to the course formed by the reinforcement thread.
  • the operation cycle repeats, as described in connection with FIG. 7a, in order to knit further courses with partial reinforcement. According to which of the jack slides m m and which of the jack slides m m' is actuated, the width of the reinforcement is varied.
  • FIG. 11 and FIG. 12 show in connection with FIG. 6 the sinker cams 16 and 17 as well as the positioning of the sinkers 14 with the sinker butts 14' and 14 in schematic plan view. From these figures may also be seen the position in each case of the sinker cam 16 revolving with the cam system H, with reference to the stationary sinker cam 17 which acts together with the stationary cam system It I, during the working phases of the process in accordance with the invention shown in FIGS. 7 and 7a.
  • the sinkers in the sector A B have additional butts 14", which correspond to the needle butts 3" and are operated by the revolving sinker cam 16 in knitting the courses formed alone by the reinforcement thread. All sinkers over the entire cylinder-circumference have butts 14, which correspond to the needle butts 3' and are operated through the stationary sinker cam 17.
  • the position of the sinkers in FIG. 11 corresponds to the needle position in FIG. 7a
  • FIG. 12 corresponds to the FIG. 7, wherein the cam system I together with the sinker cam 17 is stationarily positioned, while the cam system II together with the sinker cam 16 revolves at double the speed of the cylinder and of the sector E.
  • the sinker cam 16 is radially displaceably seated in accordance with FIGS. 11 and 12 on a slide 161, in order to be able to stop the sinker cam 16 during the knitting of the hose length, as well as to stop the cam system II, as shown in FIG. 13.
  • the sinker cam 16 occupies the position shown in FIG. 11, i.e., it revolves just as the cam system II with the speed v without operating the sinkers 14, until after the first revolution it has overtaken the sinkers 14 with butts 14" revolving with the cylinder Z with the speed v v
  • FIG. 12 is shown the operation in accordance with FIG. 7, the sinker cam 17 works together with the stationary cam system I, where now the base thread alone is being knitted, While the sinker cam 1'6 revolving and acting together with the cam system II, participates in the knitting of the reinforcement thread S in the course started by the reinforcement thread.
  • the possible length of the cylindersector E in which the reinforcement may be Worked may be calculated from the following relationship: Maximal reinforcement width:
  • an essential improvement of the previously described process in accordance with the invention can be obtained in which for the obtaining of a still greater reinforcement width the cam system II revolves for the reinforceates ear ment thread with the multiple cylinder-rotation-speed v and with the same direction of rotation as the cylinder Z, and periodically is switched on only during one of these revolutions per cylinder-rotation for the knitting backwards of the reinforcement thread alone, wherein the cam system I for the baseand reinforcement-thread is arranged stationary.
  • a coupling capable of being switched on and off, for the periodic pick up of the thread-guide for the reinforcement-thread.
  • a cam-ring with sloping surfaces at its underside which is mounted on a second ring, positioned stationary and coaxially with the cylinder and provided with corresponding sloping surfaces on its upperside, so that the first mentioned camring is operable in a small angle and displaceably positioned coaxially to the cylinder, for the operation of the revolving cam system II for the reinforcement thread.
  • Another similar pair of cam-rings serves for the operation of the coupling for the pick up of the thread-guide for the reinforcement-thread.
  • the sinker cam revolving with the cam system II for the reinforcement-thread is actuated by a stationary ring coaxial with the cylinder, which has two steering-latches pivotable in and out, independently of one another.
  • the cam system II revolves with multiple cylinder-rotation-speed, actually a repeated meeting of the two cam systems I and II takes place for each cylinder rotation, but since the revolving cam system II is always connected only during one revolution per cylinder-rotation, in each case is to be considered for the insertion of the needles for knitting the reinforced part, only one meeting, in which the needles for knitting the reinforced part may not be operated simultaneously through both cam systems I and II.
  • the speed of revolution VII of the cam system II for the reinforcement thread the cylinder-rotation speed V and the maximum reinforcement width E3
  • FIG. 14 is shown in section the complete arrangement of the upper part of a circular knitting machine, namely in the form changed as compared with that described in FIG. 6.
  • the cylinder is composed, as already described in FIG. 6, of the needle cylinder Z for the needles 2 and a subcylinder 2., for the jacks 4 and is mounted on the shaft 5 of the bevel gear 6, by which it is driven.
  • the gear 6 has a spur gear rim 6' which engages with the gear 7 to drive shaft 8.
  • the gear 7 is rotatable on the shaft 8 with a sleeve 81 and is coupled to the shaft 8 by a coupling clutch 80.
  • the shaft 8 is driven, in this instance, with a gear ratio 1:3, and carries at its upper part the gear 9 to drive the revolving cam system II for the reinforcement thread by the ring gear 90; also a gear 10, which engages a ring gear 100 for rotating sinker cam 16 for the reinforcement thread; and another gear 11, which drives, by a ring gear 110 'a clutch 27, 28 for en gagement with reinforcement thread guide S.
  • the ma- 12 chine frame has a machine table 13, and a base 131, and a cylinder 134, while on the base 131 is mounted an upper frame 132 to receive the machine-head upper part and a ring cam 133 with the stationary cam system I for the base and reinforcement thread.
  • FIG. 15 shows in broken section the revolving cam system II for the reinforcement thread.
  • the ring gear is, as may be seen in FIG. 14, seated in the lower carrier-frame 131.
  • To this ring gear 90 is attached the cam box 92 of the cam system H.
  • In the cam box 2 is a slide 91, positioned radially displaceable to the cylinder.
  • the cam parts 97 and 98, which actuate the needle butts 3" are attached to slide 91 and may thus be brought, by a connecting ring 31, into engagement and out of engagement with the needle butts 3".
  • the lower connecting ring 30 has at its upper face corresponding sloping surfaces 360' which, in the twisting of the upper connect ing ring 31', engaging at its shoulder 311', support themselves by an angle on the slanting surfaces 310' of the connecting ring 31' and thus displace upward the connecting ring 31 axially to the cylinder.
  • On this connecting ring 31 drags the bolt 94 revolving with the cam system II, which is attached at a bell crank 93.
  • the bolt 9-1 is pressed up, and the bell crank 93, pivoted on the cam box 92 by bolt 96, acts upon the pin 95 attached on the slide 91.
  • the slide 91 is pressed thus outward and cam system II switched off.
  • the actuation of the cam system II takes place during the knitting of the reinforced part'of the hose, revolving with the triple cylinder-rotation-speed at each third revolution, in order to knit back the reinforcement thread alone from the end marginof the reinforcement to the starting margin.
  • This coupling consists of a clutch 28 with a lining 27 and is connected by means of several sockets 29 with the gear 110.
  • a coil spring 291 directed at the clutch plate 28, presses on the plunger 292 and thus presses the covering 27, with the clutch switched-on, flexibly against the thread guide carrier ring 25.
  • the connecting of the clutch takes place through cam plates 31 and 30, in which the connecting ring 30 is stationarily mounted at the guide cylinder 111, while the connecting ring 31 is rotatable through a specific angle and axially displaceable by the slanting surfaces 300 and 310 facing one another.
  • the guide cylinder 111' is supported by a carrier-ring 131' on the machine frame 132.
  • the reinforcement thread guide S is attached at a carrier-arm 20, screwed-fast on a block 24 on thread-gnide-carrier-ring 25.
  • the thread-guide-bearer-ring 25 is rotatable on the stationary guide-ring 112, attached to the guide-cylinder 111' and is guided by angle-pieces 26.
  • a buffer 23 takes the impact at the stopping of the reinforcement-thread-guide S through the buffer 21 (FIG. 10) beside the thread-guide for the base-thread G, as shown in FIG. 7a, when the reinforcement-thread is knitted together with the base-thread by the stationary cam system I.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US114513A 1960-08-19 1961-06-02 Circular knitting machine for the production of partially reinforced hose goods and method therefor Expired - Lifetime US3192741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH28353A DE1121264B (de) 1960-08-19 1960-08-19 Verfahren und Rundstrickmaschine zum Rundstricken von teilweise verstaerkter Strumpfware

Publications (1)

Publication Number Publication Date
US3192741A true US3192741A (en) 1965-07-06

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US (1) US3192741A (de)
CH (1) CH388519A (de)
DE (1) DE1121264B (de)
GB (1) GB960456A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256715A (en) * 1962-07-11 1966-06-21 Stretch Corp U Narrowing and widening apparatus and method for knitting machines
US3270527A (en) * 1963-10-24 1966-09-06 Stretch Corp U Circular knitting apparatus and method adapted to continuous rotative knitting of partial courses
US3338071A (en) * 1964-01-30 1967-08-29 Joseph P Pons Seamless hosiery heel and method of forming same
US3354673A (en) * 1964-08-14 1967-11-28 Santoni Vinicio Sinker cover mechanism for circular knitting machines
US3446036A (en) * 1966-01-12 1969-05-27 John Carr Doughty Knitting machine
US3456459A (en) * 1966-02-01 1969-07-22 John Carr Doughty Knitting machine
US3599241A (en) * 1968-10-11 1971-08-17 Werner Rossler Pantyhose
US3703819A (en) * 1969-04-26 1972-11-28 Bentley Eng Co Ltd Circular knitting machines
EP0126035A1 (de) * 1983-04-12 1984-11-21 FA - MA S.N.C. di FRULLINI & MASELLI Vorrichtung zur Herstellung von Taschen in Strickwaren mit einer Rundstrickmaschine für Schlauchwaren mit kontinuierlicher und gleichgerichteter Bewegung sowie mit dieser Vorrichtung ausgerüstete Maschine
CN108049012A (zh) * 2017-11-30 2018-05-18 江阴市名品针织有限公司 一种喇叭口状袜筒的织造方法及一种防浮肿袜
IT202200021303A1 (it) * 2022-10-17 2024-04-17 Gianni Conti Macchina e metodo per la tessitura di manufatti tubolari a maglia su macchina circolare

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1231443A (en) * 1916-07-06 1917-06-26 Kilbourn Mfg Corp Seamless tubular fabric and process of making same.
DE330672C (de) * 1913-11-22 1920-12-20 Akt Ges Maschf Verfahren zur Herstellung von erweiterter Schlauchware auf Strickmaschinen unter Stillsetzung von Nadeln
US1843641A (en) * 1929-07-24 1932-02-02 Jones Thomas Henry Circular knitting machine and the production of fabrics thereon
US2229105A (en) * 1939-11-17 1941-01-21 Lombardi Knitting Machine Co I Knitted fabric
US2626513A (en) * 1949-03-19 1953-01-27 Lombardi Vincent Knitting machine and method
US2740227A (en) * 1953-05-14 1956-04-03 John E Hatula Animal trap
FR1163401A (fr) * 1956-08-31 1958-09-25 Procédé et machine pour la fabrication de bas de femme, et articles ainsi obtenus
US2911807A (en) * 1956-02-24 1959-11-10 Lombardi Vincent Knitting machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE501971C (de) * 1927-11-08 1930-07-11 Thomas Henry Jones Rundstrickmaschine mit zwei getrennten Nadelgruppen im Nadelzylinder

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE330672C (de) * 1913-11-22 1920-12-20 Akt Ges Maschf Verfahren zur Herstellung von erweiterter Schlauchware auf Strickmaschinen unter Stillsetzung von Nadeln
US1231443A (en) * 1916-07-06 1917-06-26 Kilbourn Mfg Corp Seamless tubular fabric and process of making same.
US1843641A (en) * 1929-07-24 1932-02-02 Jones Thomas Henry Circular knitting machine and the production of fabrics thereon
US2229105A (en) * 1939-11-17 1941-01-21 Lombardi Knitting Machine Co I Knitted fabric
US2626513A (en) * 1949-03-19 1953-01-27 Lombardi Vincent Knitting machine and method
US2740227A (en) * 1953-05-14 1956-04-03 John E Hatula Animal trap
US2911807A (en) * 1956-02-24 1959-11-10 Lombardi Vincent Knitting machine
FR1163401A (fr) * 1956-08-31 1958-09-25 Procédé et machine pour la fabrication de bas de femme, et articles ainsi obtenus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256715A (en) * 1962-07-11 1966-06-21 Stretch Corp U Narrowing and widening apparatus and method for knitting machines
US3270527A (en) * 1963-10-24 1966-09-06 Stretch Corp U Circular knitting apparatus and method adapted to continuous rotative knitting of partial courses
US3338071A (en) * 1964-01-30 1967-08-29 Joseph P Pons Seamless hosiery heel and method of forming same
US3354673A (en) * 1964-08-14 1967-11-28 Santoni Vinicio Sinker cover mechanism for circular knitting machines
US3446036A (en) * 1966-01-12 1969-05-27 John Carr Doughty Knitting machine
US3456459A (en) * 1966-02-01 1969-07-22 John Carr Doughty Knitting machine
US3599241A (en) * 1968-10-11 1971-08-17 Werner Rossler Pantyhose
US3703819A (en) * 1969-04-26 1972-11-28 Bentley Eng Co Ltd Circular knitting machines
EP0126035A1 (de) * 1983-04-12 1984-11-21 FA - MA S.N.C. di FRULLINI & MASELLI Vorrichtung zur Herstellung von Taschen in Strickwaren mit einer Rundstrickmaschine für Schlauchwaren mit kontinuierlicher und gleichgerichteter Bewegung sowie mit dieser Vorrichtung ausgerüstete Maschine
CN108049012A (zh) * 2017-11-30 2018-05-18 江阴市名品针织有限公司 一种喇叭口状袜筒的织造方法及一种防浮肿袜
IT202200021303A1 (it) * 2022-10-17 2024-04-17 Gianni Conti Macchina e metodo per la tessitura di manufatti tubolari a maglia su macchina circolare

Also Published As

Publication number Publication date
CH388519A (de) 1965-02-28
GB960456A (en) 1964-06-10
DE1121264B (de) 1962-01-04

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