EP0049857B1 - Métier à tricoter circulaire pour fabriquer un tricot pelucheux ayant des fibres insérées - Google Patents

Métier à tricoter circulaire pour fabriquer un tricot pelucheux ayant des fibres insérées Download PDF

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Publication number
EP0049857B1
EP0049857B1 EP81108006A EP81108006A EP0049857B1 EP 0049857 B1 EP0049857 B1 EP 0049857B1 EP 81108006 A EP81108006 A EP 81108006A EP 81108006 A EP81108006 A EP 81108006A EP 0049857 B1 EP0049857 B1 EP 0049857B1
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EP
European Patent Office
Prior art keywords
machine according
circular knitting
hosiery machine
combing
disentangling
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.)
Expired
Application number
EP81108006A
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German (de)
English (en)
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EP0049857A1 (fr
Inventor
Peter Dr. Dipl.-Ing. Artzt
Gerhard Prof. Dr. Dipl.-Ing. Egbers
Helmut Grimm
Klaus Kunde
Anton Dr. Dipl.-Ing. Schenek
Adolf Seidel
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Sulzer Morat GmbH
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Sulzer Morat GmbH
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Filing date
Publication date
Priority claimed from DE19813107714 external-priority patent/DE3107714A1/de
Application filed by Sulzer Morat GmbH filed Critical Sulzer Morat GmbH
Priority to AT81108006T priority Critical patent/ATE7934T1/de
Publication of EP0049857A1 publication Critical patent/EP0049857A1/fr
Application granted granted Critical
Publication of EP0049857B1 publication Critical patent/EP0049857B1/fr
Expired legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/14—Circular knitting machines with independently-movable needles with provision for incorporating loose fibres, e.g. in high-pile fabrics

Definitions

  • the invention relates to a circular knitting or circular knitting machine of the type defined in the preamble of claim 1.
  • the carding of all knitting or knitting machines previously used for commercial purposes contain at least one opening or carding roller, to which a sliver is fed, and a take-off or combing roller for taking over and combing the fibers prepared by means of the opening roller into the knitting or knitting needles.
  • Both the opening roller and the combing roller are provided with a flexible fitting in the form of a rubber blanket attached to the roller jacket, into which flexible wire hooks projecting radially outward are incorporated.
  • the wire hooks of the opening roller and the combing roller are in more or less deep engagement with each other so that the fibers can be transferred from the opening roller to the combing roller.
  • the fibers are transferred from the combing roller to the knitting or knitting needles in that their hooks are guided along a spiral path through the wire hooks of the combing roller.
  • the mechanical engagement of the wire hooks of the combing roller in the wire hooks of the opening roller or the hook of the knitting or knitting needles in the wire hooks of the combing roller results in high mechanical wear on the one hand despite the flexibility of these wire hooks, which is caused by the additional engagement of the wire hooks by workers. and reversing rollers as well as cleaning or equalizing rollers in the wire hooks of the opening or combing roller.
  • the fittings of the rollers mentioned and the knitting or knitting needles therefore often have to be replaced, which leads to long downtimes of the knitting or knitting machine and causes high material costs.
  • the mechanical intervention means that the speeds of the opening roller and the combing-in roller cannot be set freely and independently of one another as desired, since, for example, the high speed of the opening roller required to achieve good resolution of the fibers is limited by the speed of the combing-in roller on the one hand
  • the speed of the combing-in roller For the purpose of uniformly combing the fibers into the knitting or knitting needles, it is comparatively small, but on the other hand, because of the required takeover of the fibers by the opening roller, it must always be set greater than their speed. Apart from this, the uniformity of the fiber entry into the knitting needles is unsatisfactory because of the known storage effect of the combing roller.
  • Circular knitting machines have therefore already become known which have devices for contactless combing of the fibers into the knitting needles, the term “contactless” being understood to mean that neither the hooks of the knitting needles pass through a fitting nor rollers are provided, the fittings with engaged wire hooks to transport or to even out the fibers.
  • a transport channel in which an air flow for transporting the fibers is maintained and which has a combing zone in the form of an opening through which the hooks of the needles pass.
  • the entrance of this transport channel is connected to a dissolving device in the form of a separate chamber intended for dissolving and separating the fibers, to which the fibers are fed in a coherent sliver and removed again by means of compressed air.
  • a conveyor belt is provided, for example, for transferring the fibers floating in the chamber into the transport channel.
  • US Pat. No. 3,014,355 also provides a transport channel for combing the fibers into the knitting needles, in which an air flow for maintaining the fibers is maintained.
  • the open end of the transport channel is arranged close to the passing hooks of the knitting needles, while an input opening of the transport channel is supplied with a sliver by means of conventional feed rollers.
  • the invention is based on the object of further developing the knitting or knitting machine of the type described at the outset in such a way that it can be used commercially and with low fiber losses, an even combing of the fibers into the hooks of the knitting or knitting enables.
  • the invention has the advantage that, despite the use of an opening roller which is known per se and which is desired in order to achieve good fiber resolution, the opening roller consists of a compact structural unit, the dimensions of which are only slightly larger than the dimensions of the opening roller.
  • the opening roller consists of a compact structural unit, the dimensions of which are only slightly larger than the dimensions of the opening roller.
  • an optimal dissolution of the sliver into individual fibers is achieved because the opening roller is driven at a high peripheral speed, which is at least about four times greater than the peripheral speeds of the opening rollers on conventional knitting or knitting machines.
  • the uniformity of the fiber entry is also significantly improved in that, at the high peripheral speeds mentioned, on the one hand, due to the resulting high centrifugal forces, an almost complete detachment of the fibers is achieved within the outlet opening or the detachment zone, especially if the opening roller is fogged up from short, if possible Rigid hook is made so that the opening roller can not act as a fiber storage, while on the other hand an air flow is automatically built up, which is sufficient to transport the detached fibers through the relatively short section from the outlet opening or from the detaching section to the combing zone.
  • an auxiliary air flow can additionally or alternatively be built up in the separation section and / or in the combing zone in order to improve or effect the fiber detachment and the fiber transport.
  • Another advantage of the knitting or knitting machine according to the invention is that the fiber is transported from the inlet opening to the combing zone of the opening device in a very short time and without any storage effect, so that by controlling the feed speed of the sliver, sharp changes in the fiber density in the finished knitting or Knitted fabric can be generated.
  • short-wave fluctuations in the fiber density in the supplied sliver are advantageously compensated for by a high redoubling effect, which is a consequence of the peripheral speed of the opening roller, which is considerably greater than that of the usual transport speed of the knitting needles.
  • the guide surface is arranged such that its front end facing the combing zone has a radial distance from the opening roller that is smaller than the corresponding distance of the part of the separation section bordering the outlet opening, but larger than the corresponding distance of the Dissolving and accelerating section, and that its rear end facing away from the combing zone has a radial distance from the opening roller which is substantially equal to the corresponding distance of the opening and accelerating section, then the ends of the fiber tufts gradually come into the engagement area of the fitting of the opening roller and are therefore grasped by its tips and smoothly brushed or combed. This results in an extremely uniform fiber entry and an extremely uniform fiber density in the finished knitted fabric. In addition, the fiber losses observed are comparatively small even when using very short fibers.
  • a circular knitting machine for producing knitted goods 1 with combed fibers contains a generally rotatable needle cylinder 2, in which vertically displaceable knitting needles 3 with hooks 4 are mounted, which open and close in the area of at least one knitting system with the aid of stationary lock parts 5 be moved to produce a basic knitted fabric with threads, not shown.
  • the fibers are dissolved and combed into the knitted fabric with the aid of at least one card 6 assigned to the knitting system, which is a feed device, for example consisting of two feed rollers 7 for a sliver or a fiber sliver 8, and a dissolving device intended to dissolve the fiber sliver 8 into individual fibers 9 in the form of an opening roller 10 and a combing zone 11 traversed by the knitting needles 3 or their hooks 4 for the purpose of receiving the fibers 9.
  • a feed device for example consisting of two feed rollers 7 for a sliver or a fiber sliver 8
  • a dissolving device intended to dissolve the fiber sliver 8 into individual fibers 9 in the form of an opening roller 10 and a combing zone 11 traversed by the knitting needles 3 or their hooks 4 for the purpose of receiving the fibers 9.
  • the sliver 8 is released by means of the opening roller 10, which can be rotated in the direction of an arrow P and whose circumferential or lateral surface is covered with a fitting 13 which has hooks 14 projecting outwards.
  • the opening roller 10 is driven at a substantially higher peripheral speed than the peripheral speed of the feed rollers 7 and therefore breaks down the sliver 8 into individual fibers 9.
  • the width of the peripheral surface of the opening roller is 10 expediently larger than the width of the supplied sliver 8.
  • a guide plate not shown, can be provided, which places the sliver 8 tangentially and in the running direction of the opening roller 10 on its circumferential surface.
  • the card 6 has a cover 15 which covers the outer surface of the opening roller 10 opposite to an inlet opening 16 for the Zuglassw 2 [zen 7 supplied sliver 8 and, disposed in the direction of rotation of the opening cylinder 10 behind it, opening into the combing-in zone 11 outlet opening 17 includes for dispensing the fibers 9 and at least closed from the inlet opening to the outlet opening 17 is.
  • the cover 15 thereby delimits outwardly a dissolving and accelerating section 18 which begins directly at the inlet opening 16, ends at the outlet opening 17 and is indicated in FIG.
  • the distance between the cover 15 and the tips of the hooks 14 therein The area is so small that the fibers taken over by the hooks 14 at the inlet opening 16 are held by the hooks 14 and transported further without fiber accumulations occurring between the cover 15 and the hooks 14 or fibers being separated from the transport in such a way that Detach loose fibers from the hooks prematurely due to the centrifugal force.
  • the fibers can detach from the hooks 14 under the influence of the centrifugal force.
  • the cover 15 is expediently part of a housing which surrounds the opening roller 10 and the combing zone 11.
  • the side walls of this housing each have a U-shaped opening 19 at the entrance and exit of the combing zone 11, while a slot 20, which is preferably arranged transversely to the transport direction of the fibers, is formed in the housing base.
  • the openings 19 and the slot 20 are located in a housing part which, in the direction of rotation of the opening roller 10 in the form of a tangential flow channel 21, adjoins the outlet opening 17 of the cover 15 and surrounds the trajectory of the fibers 9 after they have passed through the outlet opening 17. Due to this construction, the combing zone 11 can be arranged in the immediate vicinity of the circumference of the opening roller, but also somewhat away from it, without the hooks 4 of the knitting needles 3 coming into contact with the hooks 14 of the fitting 13.
  • Fig. 2 shows a second embodiment of the invention, wherein the same parts are provided with the same reference numerals.
  • a dissolving and accelerating section 22, indicated by an arrow, within which a cover 23 is at a small but otherwise constant distance from the tips of the hooks 14 of the dissolving roller 10 extends only over about a quarter of the Scope of the opening roller 10.
  • the opening and acceleration section 22 is then adjoined in the direction of rotation of the opening roller 10 by a separation section 24 indicated by an arrow, which also extends approximately over a quarter of the circumference of the opening roller 10 and at the beginning of an outlet opening 25 for the opening Fibers 9 ends.
  • the fibers can therefore leave the hooks 14 along a relatively long peripheral portion are detached before they are flung away in an essentially tangential direction through the outlet opening 25 bordering the combing zone 11.
  • the combing zone 11 consists of a section 26 of a web 27 which extends transversely to the transport direction of the fibers 9 and which is traversed by the upper ends of the hooks 4 of the knitting needles 3 during the usual rotation of the needle cylinder 2.
  • the cover 23 is preferably part of a housing 28 which surrounds the opening roller 10 on all sides, the side walls of which each have a U-shaped opening 29 at the beginning or at the end of the section 26, the upper edge of which can be slightly rising or straight in order to adapt to obtain the shoot not yet completed when passing the cover 23 or the withdrawal of the knitting needles 3 according to the web 27, which has not yet started, while only a transverse slot 30 (FIG. 2) is provided in the bottom of the cover 23.
  • the section 26 is arranged parallel to the axis of the opening roller 10 and provided at such a height that the hooks 4 of the knitting needles 3 are as close as possible to the tips of the hooks 14 of the opening roller 10, but do not touch them. This ensures that only a very few fibers 10 can escape unused through the space between the hooks 4 and 14.
  • the shape of the web 27 depends on the shape of the lock parts 5, which act on the feet 32 of the knitting needles 3 following a web 31. 3, the knitting needles 3 are already fully driven out when the cover 23 is reached.
  • the open parts of the hooks 4 of the knitting needles 3 face the end of the detaching section 24 which is at the rear in the direction of rotation of the opening wheel.
  • both the inlet openings 16 and the combing-in zones 11 are arranged directly on the circumference of the opening roller 10, so that only the opening roller 10 is required for the entire opening and combing-in process.
  • this eliminates the usual worker and turner rollers and the separately provided take-up rollers.
  • the path of the fibers from the entry opening 16, where they are still anchored in the fiber sliver 8, to the combing zone 11, where the fibers 9 are inserted into the hooks 4 of the knitting needles 3 is extremely short, so that desired changes in the fiber density, e.g. B. due to the use of different slivers, very quickly noticeable at the entrance zone by appropriate changes in the weight of the fabric in the knitted fabric.
  • the uniformity of the fiber entry is extremely high.
  • the opening roller 10 is assigned a drive M (FIG. 1) which is independent of the conventional needle cylinder drive 33 (FIG. 1) and which drives the opening roller 10 at a constant speed at all knitting machine speeds or to a certain extent to the respective knitting machine speeds and / or the properties the supplied fibers can be adjusted.
  • the peripheral speed of the opening roller 10 during operation is relatively large compared to the peripheral speeds of the usual opening rollers, which are synchronized with the knitting machine speed and interact with a take-off roller, and preferably at least about four to ten times greater, based on the maximum speed of the needle cylinder 2.
  • the peripheral speed of the opening roller 10 is absolutely preferably more than fifteen meters per second with peripheral speeds of the needle cylinder of a maximum of about 1.5 meters per second.
  • the feed rollers 7, on the other hand, are driven synchronously with the rotational speed of the needle cylinder by means of a conventional drive A (FIG. 1) and, in the above example, have peripheral speeds which are at least about a hundred times smaller than the peripheral speed of the opening roller 10 at the maximum cylinder speed.
  • the feed speed of the feed device 7 can be varied depending on the weight of the goods.
  • the large difference between the feed speed of the sliver 8 and the peripheral speed of the opening roller 10 results in a high warpage in the sliver 8 and therefore an extremely good separation of the fibers.
  • the centrifugal forces occurring at the high speeds or peripheral speeds of the opening roller 10 are normally sufficient in the described exemplary embodiments to detach the fibers held by the hooks 14 within the outlet opening 17 or the detaching section 24 by the centrifugal force alone, which avoids storage effects and to achieve a high uniformity of the density of the combed fibers should be striven for.
  • an additional opening is provided in the cover 23 corresponding to FIG. 4 in the rest of FIG. 3 in the region of the detachment section 24, which is expediently a slot opening that extends over the entire width of the opening roller 10.
  • This opening is connected to a blowing nozzle 34, by means of which an auxiliary air stream can be blown into the detachment section 24 in order to support the detachment of the fibers from the hooks 14 of the dissolving roller 10 or, if the centrifugal forces caused by rotation of the dissolving roller 10 are too small, to effect alone.
  • the auxiliary air flow is suitably tangential to the opening roller 10 and in the running direction from its circumferential surface due to a suitable design and arrangement of the opening and the blowing nozzle 34 This point is directed so that it does not press the fibers into the hooks 14 of the opening roller 12, but scrapes them off, and should have a speed which is greater than the peripheral speed of the opening roller 10.
  • a channel connected to a suction air source can be provided, which is expediently arranged at the rear end of the combing-in zone 11 in the direction of rotation of the opening roller 10.
  • the covers 15 and 23 are expediently designed as parts of a closed housing which tightly encloses the opening roller 10 on all sides and which only has the inlet opening 16 for receiving the sliver 8, possibly the one connected to the blowing nozzle 34 Opening, the outlet opening 17 and 25 and the openings 19 and 29 and slots 20 and 30 required for the passage of the hooks 11 of the knitting needles 3, the outlet openings 17 and 25 or channels connected to them simultaneously for guiding the air flow and can be used to transport away the remaining fibers that have not been combed in the combing zone 11 and thus have been used unused, and the axes of the outlet openings 17 and 25 should be arranged tangentially to the circumferential surface of the opening roller 10 in order to avoid disturbing air vortices.
  • a part 35 of the cover 23 (FIG. 2) adjacent to the outlet opening 25 and facing the open hook 4 of the knitting needles 3 is expediently designed such that it ends just above the opened needle tongues and thereby prevents the needle tongues from closing within the combing zone 11 , on the other hand, ensures that the detached fibers can only be placed in the open needle hook 4 facing the fiber stream, but not around the shaft of the knitting needles 3 underneath. This measure is not necessary when using needle or tube needles.
  • the feed rollers 7 are, as indicated in Fig. 1, arranged adjustable so that the distance of the gap 36 formed between them from the axis of the opening roller 10 can be adapted to the individual stack length of the fibers carried in the fiber sliver 8.
  • the setting should be selected so that the distance of the gap 36 from the point at which the fiber sliver 8 is gripped by the hooks 14 of the opening roller 10 is approximately equal to the average stack length.
  • the length of the dissolving and accelerating section 18 or 22, and in particular of the detaching section 24, measured in the direction of rotation of the opening roller 10 should be at least equal to the largest stack length to be processed, so that the detaching process is only started when the entire length of the fibers on the opening roller 10 rest, or so that the detachment process is completed before the separated fibers 9 are inserted into the hooks 4 of the knitting needles 3.
  • a plurality of interchangeable opening rollers 10 and covers 15 and 23 can also be provided, which are adapted to different areas of staple fiber lengths. In the embodiment according to FIG. 1, the distance between the outlet opening 17 and the combing-in zone 11 must be chosen according to the stack length.
  • the distance of the cover 15 or 23 from the fitting tips of the opening roller 10 lying opposite it is less than one millimeter in the area of the opening and accelerating section 18 or 22 and expediently gradually increases to a value of up to the end in the presence of a removal section 24 several millimeters.
  • the longitudinal axes of the knitting needles 3 are located within the combing-in zone 11 in a position relative to the opening roller 10, which lies between the radial and the tangential position, around the receiving areas of the opening 4 defined by the distances of the ends of the open tongues from the lower edges of the hooks 4 Arrange knitting needles 3 in the combing zone 11 in an optimal manner for inserting the fibers.
  • the knitting needles 3 can be provided with a hook shape 4, which is designed to be more open compared to conventional knitting needles and therefore only slightly impede the insertion of the fibers 8.
  • tubular or sliding needles can also be used well.
  • the hooks 14 of the opening roller 12 consist of sawtooth-shaped hooks.
  • conical hooks or needles 37 can also be provided.
  • the hooks 14 or the axes of the needles 37 can be inclined in the direction of rotation forwards (FIGS. 1 to 4) or backwards (FIGS. 5 and 6).
  • the hooks 14 or needles 37 are expediently parts of a fitting made entirely of steel.
  • a blowing nozzle 38 is also provided which, in the region of that opening 39, has an additional air flow acting tangentially and in the direction of rotation of the opening roller 10 onto the fibers already in the hook 4 of the knitting needles 3 aligns and orientates them in the desired manner, on which the knitting needles 3 leave the housing part surrounding the combing zone 11.
  • the side wall 40 of the housing is also expediently arranged at this point with an input and an extension of the air flow according to FIG.
  • the blowing nozzle 38 is expedient outside of the housing arranged that the air flow generated by it enters the channel 41 obliquely from the outside inwards.
  • a channel 42 which is covered at its outer end and which cooperates with a blowing nozzle 43, the axis of which coincides essentially with the axis of the channel 42, is formed in the side wall 40 instead of the channel 41.
  • the mode of operation of the channel 42 and the blow nozzle 43 correspond to the mode of action of the channel 41 and the blow nozzle 38 except for the different orientation of the fibers combed into the hooks 4.
  • the fibers can be influenced at a point in the running direction of the knitting needles 3 behind the combing zone 11 immediately before the stitch formation process in the opposite direction to the action of the blowing nozzle 38 or 43 (FIGS. 5 and 6) and are looped around the shafts of the knitting needles 3, for example by arranging the boundary of the opening 29 so close to the moving back of the knitting needles 3 that the free passage of the tufts of fibers located in the hook 4 is hindered by the opening 29 and the tufts of fibers thereby when the knitting needles 3 are transported around their shafts.
  • This measure makes it possible to surprisingly produce knitwear in the manner of plush or looped goods, since the fibers, like the plush threads, are incorporated into the basic knitted fabric in the manufacture of looped plush.
  • the housing or cover part bordering the combing zone 11 in the back of the knitting needles 3 is provided with an extension 44 which extends downwards such that this extension 44 can be used as a hold-down part for the knitted fabric 1.
  • the housing may have a widening 45 (FIG. 3) extending beyond the combing zone 11 in the transport direction of the knitting needles 3 such that this widening 45 can be used to cover the fiber web combed in a previous knitting system in order to prevent that this is detected again when the knitting needles 3 are withdrawn in the knitting system shown in FIG. 3 and entangled.
  • a pile knitting machine or a special plush machine can also be provided, in which case the opening roller 10, the covers 15 and 23 and the different zones or sections 11, 18, 22 and 23, respectively, depending on the conditions in the individual case are to be adjusted.
  • the invention is not limited to the exemplary embodiments described, but can be modified in various ways.
  • all other known feed devices can be used, which, for. B. only have a trough facing feed roller, additional drafting systems or so-called hedgehog rollers (z. B. DE-OS 23 43 426).
  • covers or housings with a different shape can be used, provided that they allow the fibers to be separated as completely as possible from the opening roller 10 in order to avoid storage effects, and have a section which provides the necessary resolution of the Fibers and their acceleration to a much greater than the feed speed allowed.
  • the inlet and outlet openings 16, 17 and 25 need not be surrounded on all sides by the associated covers, which extend in the circumferential direction of the opening roller 10. Since the cover only has to be present between the inlet and the outlet opening because of the almost 100% fiber detachment in the region of the outlet opening 17 or 25, these openings can also be defined by those inlet or outlet gaps that are used when a finite cover is used their start and end sections and the size of the opening roller. When using finite covers, the openings 19 and 29 or slots 20 and 30 provided for the passage of the knitting needles 3 may be missing, since in this case the needles can be guided past the end section of the cover.
  • orientation elements in the form of mechanical or electrostatic devices can finally be provided.
  • These orientation elements like the blowing nozzles 38, 43 and channels 41, 42, can be arranged directly where the knitting needles 3 are drawn off, instead of at the exit of the combing zone 11, in order to form stitches.
  • the drive motor for the opening roller is a drive motor which is independent of the knitting machine drive and which can also be used when the knitting machine is at a standstill, e.g. B. circular knitting machine, can be operated so that the opening roller has already reached the required high speed when switching on the knitting machine and also maintains this until the knitting machine stops again.
  • a second, separate drive motor is not absolutely required, but it can be provided, with the help of special gears and / or couplings, to ensure that the knitting machine can only work properly when the opening roller is running. Otherwise there would be areas in the knitted fabric at any standstill that have no fibers or unevenly distributed fibers.
  • the required high speeds of the opening rollers in test machines were 4,000 rpm. M. with an opening roller diameter of 125 mm and in the other conditions the same as when using the conventional dissolving devices.
  • the fiber insertion is not always satisfactory, especially when using very short fibers with a staple length of, for example, twenty millimeters.
  • the primary fiber losses are undesirably high in this case, which result from the fact that fibers which have not been inserted escape unprocessed from the flow channel 21 (FIG. 1).
  • the embodiments according to FIGS. 7 to 12 are particularly suitable for avoiding these effects.
  • the embodiment according to FIG. 7 initially contains, like the embodiment according to FIG. 2, an opening roller 51 which can be rotated in the direction of arrow P and has hooks, the tips of the hooks lying on the circular line 52 shown in broken lines, and also a feed device 53 for feeding the sliver 8 and a cover 54 opposite the lateral surface of the opening roller 51, which has a opening and acceleration section 55 and an adjoining opening section 56 which opens into an outlet opening 57 formed by the exit gap between the cover 54 and the opening roller 51, to which the opening opening 57 opens Combing zone 11, which extends parallel to the axis of the opening roller 51 and is traversed by the hooks of the knitting needles 3.
  • the cover 54 has in the region of the detachment section 56 according to FIG.
  • suction opening 58 which, for. B. consists of an across the entire width of the opening roller 51 and tangential to this slot opening.
  • this suction opening 58 is not connected to a blowing nozzle, but rather only to the external atmosphere.
  • the orientation nozzles shown in FIGS. 5 and 6 are missing.
  • the guide of the exhaust air described with reference to FIGS. 1 to 6 in the area following the combing zone 11 in the direction of rotation of the opening roller 51, lying in the back of the knitting needles 3, is selected according to FIG. 7 such that the part of the cover extended beyond the combing zone 11 54 is designed as an air and fiber guide section 59, which divides the exhaust air stream into a main stream 60 emerging from the external atmosphere and a secondary stream 61 flowing into the area between the guide section 59 and the lateral surface of the opening roller 51.
  • the guide section 59 acts with its preferably rounded front end 62 facing the combing zone 11 as a separating edge.
  • the front end 62 preferably extends close to the back of the knitting needles 3, which are in the combing-out zone 11 in the fully extended position, and is expediently arranged in the region of the combing-in zone 11 or the extension of the outlet opening 57.
  • the guide section 59 also has a guide surface 63 facing the opening roller 51, which acts as an orientation and combing surface for the inserted fiber tufts 64.
  • the radial distance of the front end 62 or the front end of the guide surface 63 from the circular line 52 is smaller than the radial distance of the part 65 of the detaching section 56 bordering the outlet opening 57, but larger than the radial distance of the dissolving and accelerating section 55 from the Circular line 52.
  • the rear end 66 of the guide surface 63 which is distant from the combing-in zone 11, has essentially the same radial distance from the circular line 52 as the opening and acceleration section 55, so that fibers which are carried along by the opening roller 51 to the rear end 66 continue to rotate the opening roller 51 get caught in the hook and are not thrown out in an uncontrolled manner.
  • a section 67 of the cover 54 which follows the rear end 66 and extends to the feed device 53 is likewise arranged at such a distance from the opening roller 51.
  • the part of the guide surface 63 located between the front end 62 and the rear end 66 expediently has a gradually decreasing radial distance from the opening roller in the direction of the rear end 66 along a concave surface, so that the guide surface 63 has a wedge gap with the circular line 52 or the hook tips of the Fitting of the opening roller 51 forms.
  • a channel section 68 can finally be provided, which begins behind the combing-in zone 11 approximately at the level of the part 65 and delimits the main stream 60 approximately tangentially to the lateral surface of the opening roller 51.
  • a lower surface 70 of the guide section 59 is arranged in FIG. 7, which begins at the front end 62 and, together with the section 68, forms a flow channel for the main stream 60.
  • the bypass flow 61 surprisingly causes all inserted tufts of fibers 64 to come to rest in the gap between the guide surface 63 and the opening roller 51 as they pass through the combing zone 11 and are aligned there parallel to the outer surface of the opening roller 51. This applies even if the front end 62 of the guide section 59 is arranged practically at the upper end of the combing zone 11 or the outlet opening 57 according to FIG. 7. It is therefore suspected that this alignment bsw.
  • Orientation of the fiber tufts 64 is less due to the mere division of the fiber and air flow into a main stream 60 and a secondary stream 61, but rather can be attributed to the fact that the main stream 60 coming to the atmosphere is a rapidly decreasing one, which is in the widening wedge gap incoming secondary flow 61, on the other hand, has a continuously increasing flow rate up to the gap end, as a result of which a strong suction is formed especially in the area of the front end 62, which also contains those fiber tufts 64 which were originally aligned in the direction of the main flow 60, through which between the front end 62 and pulls the slit opening located in the needle back into the wedge gap.
  • the tufts of fibers 64 are arranged in the wedge gap, due to the prevailing flow in them, they reach more and more the area of the hooks of the fitting of the opening roller 51 and are therefore grasped, combed and oriented by these, whereby the uniformity of the fiber density in the finished knitted fabric is essential is improved.
  • the needle lock Since the knitting needles 3 have to be driven out comparatively far because of the part 65 of the cover 53 in order to bring their heads within the combing zone 11 close to the line 52, the needle lock also has a guide 71 in this area, which guides the knitting needles 3 when climbing up supports.
  • FIG. 8 in which only the parts essential for guiding the exhaust air are shown, contains an opening roller 72 which can be rotated in the direction of the arrow P and has hooks 73 which are inclined to the rear and therefore have a negative slope and the tips of which a circular line 74 are arranged, and also a cover 75 with a detachment area 76, a fiber and air guide section 77 and a channel section 78.
  • an opening roller 72 which can be rotated in the direction of the arrow P and has hooks 73 which are inclined to the rear and therefore have a negative slope and the tips of which a circular line 74 are arranged, and also a cover 75 with a detachment area 76, a fiber and air guide section 77 and a channel section 78.
  • the radial distance of the detachment section 76 from the lateral surface of the opening roller 72 does not continuously increase an outlet opening 79 towards, but remains within a guide section 81 extending from a point 80 to the outlet opening 79 either substantially constant or even decreases slightly again, so that a kind of ski jump or ramp is formed directly in front of the outlet opening 79, through which de detached Fibers specifically transported in the direction of the open hooks 4 of the knitting needles 3 the.
  • Behind the knitting needles 3, the air and fiber flow is divided into a main flow 82 and a secondary flow 83 by the guide section 77 as in FIG. 7.
  • the guide surface 84 facing the opening roller 72 does not run concavely, but essentially in one plane towards the opening roller 72, so that when the smallest radial distance is reached, it corresponds to a section (not shown) corresponding to section 67 (FIG. 7) Section of the cover 75 pass over.
  • the inserted fiber tufts 85 increasingly reach the effective area of the hooks 73 of the opening roller 72 with their free ends and are therefore combed and oriented by them.
  • an opening roller 86 rotatable in the direction of arrow P, a cover 87 with an opening and acceleration section 88 and a release section 91 having a ramp-shaped guide part 89 and a suction opening 90 and an outlet opening 92 provided.
  • An air and fiber guide section 93 behind the knitting needles 3 consists of a pivotable flap 94, the guide surface 95 facing the opening roller 86 of which is essentially designed in accordance with FIG. 7 and which has a streamlined profile at least on its rounded front end 96, which acts as a separating edge that the air and fiber flow escaping from the outlet opening 92 is divided into a main flow and a secondary flow.
  • the different sections of the cover 87 can be parts of a housing which completely encloses the opening roller 86 and which also has side walls 97, of which only the rear side wall is shown in FIG. 9. 9, in the region of the combing-in zone 11, these side walls have a V-shaped wedge gap 98 which is open at the bottom for the passage of the knitting needles 3 and into which the front end 96 of the flap 94 protrudes.
  • a channel section delimiting the main flow is missing in this embodiment, so that the knitting needles 3 are visible and easily accessible during operation and faults can be quickly recognized and eliminated.
  • the flap 94 is pivotally suspended with its rear end 99 in the side walls 97, so that the distance of the guide surface 95 from a circular line 100 formed by the fitting tips can be set to any desired value or adapted to the circumstances of the individual case.
  • the portion of the cover 87 which adjoins the rear end 99 of the flap 94 is designed in accordance with FIGS. 7 and 8.
  • the pivot axis is arranged parallel to the axis of the opening roller 86.
  • Fig. 7 to. 9 lead to even fiber entry with low fiber loss even when processing short fibers. These desired results are particularly favored by the special guidance of the exhaust air in combination with the ventilation caused by the opening roller and the suction opening and the negative angle at which the hooks of the opening roller are arranged, which above all enables the fibers to be detached quickly and completely from the fitting.
  • the speed of the opening roller was 4000 rpm. M. with an opening roller diameter of 125 mm, while the other operating conditions were comparable to those which are common when using conventional systems consisting of opening and doffer rollers.
  • the guide sections 81 and 89 also contribute to achieving low fiber losses, since they guide the fibers directly in the direction of the open needle hooks.
  • the length of the guide surfaces 63, 84 and 95 is primarily dependent on the fiber length, but can be selected so that it corresponds to the longest stack length to be processed.
  • the distance of the guide surface from the opening roller must be adjusted, particularly depending on the fiber length and the density of the inserted tufts of fibers, so that the inserted tufts of fibers are combed and oriented in the desired manner on the one hand, but are not torn out or damaged on the other hand will.
  • a number of dimensions are given below with reference to FIGS. 10 and 11 which are suitable for a wide range of applications and a large number of fibers, without the invention being restricted to these dimensions.
  • the distance between the guide surfaces 63, 84 and 95 from the circular lines 52, 74 and 100 is at a point 101 at most about one millimeter, at a point 102 at most about three millimeters and directly at the front end, i. H.
  • the needle heads in the combing zone 11 should be brought close to the circular lines 52, 74 and 100, respectively.
  • Values 104 of a maximum of approximately two millimeters have been found to be particularly favorable for the dimension shown in FIG. 11.
  • the distance from the front of the knitting needles 3 to the end of the guide section 89 corresponding to the dimension 105, which is adjacent to the outlet opening 92, is expediently a maximum of about five millimeters, and the dimension 106 (FIG.
  • the distance of the needle back from the front end of the guide surface is preferably a maximum of about three needle head heights.
  • the length of the detachment section 56, 75 or 91 should extend over an angle of at least about 100 °. The appropriate dimensions in individual cases can be easily determined.
  • the embodiment according to FIG. 12 is particularly suitable for converting a circular knitting machine equipped with conventional carding machines to a circular knitting machine according to the invention.
  • the opening roller can therefore be placed very close to the knitting machine, so that even after the changeover, only a small needle drive is required to take up the fibers.
  • FIGS. 7 to 11 can also be modified in many ways.
  • a displaceable air and fiber guide section can be provided, for example, and other sections can take the place of the ramp-like or jump hill-like sections and the channel sections.
  • the shape of the guide surface can also be chosen differently from the shape of the front end of the air and fiber guide section shown.
  • the fittings 13 of the opening rollers consist of a spirally wound set or of individually inserted, essentially rigid needles or hooks in the manner of the hooks 37, 73, also with a spiral setting type.
  • Other arrangements of the fittings and / or hooks tend to flake, which is undesirable.
  • each card, each opening roller or at least each combing zone into two sections spaced apart in the running direction of the knitting or knitting needles and to control the knitting or knitting needles by means of conventional selection devices in such a way that the fibers from the first section only into each first, third, fifth, etc. needles, on the other hand, from the second section into the intervening second, fourth, etc. needles.
  • a 1 1 selection would bring with it the advantage that the needles located in a combing zone in the driven-out position are at a greater distance from one another and therefore do not accommodate fibers which extend across several needles and could impair the quality of the finished knitted fabric.
  • three or more such sections can be provided if necessary, which correspondingly a 1: 2, 1: 3 etc. of the needles, but would also lead to a considerable broadening of the combing zone.
  • the peripheral speed of the opening roller 10 is always greater than the peripheral speed of the needle cylinder 2 and thus also greater than that needle speed caused by the rotation of the needle cylinder 2.
  • the width of the opening roller is at least five times, preferably at least ten times the needle spacing, the needle spacing in each case according to the calculation of the pitch of a circular knitting or circular knitting machine is measured from the center of the needle to the center of the needle.
  • the arrangement according to FIG. 3 is such that the combing-in zone 11 begins in the direction of rotation of the needle cylinder in front of the opening roller 10 and ends behind it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Knitting Machines (AREA)

Claims (31)

1. Métier à tricoter ou métier de oonneterie circulaire pour fabriquer des tricots ou des tissus à mailles avec des fibres incorporées, comportant au moins une aiguille à tricoter ou une aiguille à mailler, un cylindre à aiguilles rotatif et au moins une carde qui comporte un dispositif d'alimentation pour une bande de fibres, un dispositif de démêlage pour démêler la bande de fibres en fibres individuelles et une zone d'incorporation parcourue par les aiguilles à tricoter ou à mailler, dans laquelle les fibres sont introduites sans contact, caractérisé en ce que le dispositif de démêlage est constitué par un cylindre de démêlage (10) muni d'une garniture (13), auquel est associé un entraînement indépendant de l'entraînement du métier à tricoter et dont la vitesse de rotation est choisie de telle sorte que sa vitesse périphérique est plus grande que la vitesse des aiguilles provoquée par la rotation du cylindre à aiguilles (2), et que, face à la surface périphérique du cylindre de démêlage (10) se trouve un couvercle (15, 23) qui comporte une ouverture d'entrée (16) pour la bande de fibres (8) amenée par le dispositif d'alimentation (7) et une ouverture de sortie (17, 25) débouchant dans la zone d'incorporation (11), pour les fibres individuelles (9), et qui entoure la garniture (13) dans une section d'accélération et de démêlage (18, 22) située entre l'ouverture d'entrée (16) et l'ouverture de sortie (17, 25) dans le sens de la rotation, assez étroitement pour empêcher que les fibres ne se détachent dans cette section d'accélération et de démêlage.
2. Métier à tricoter ou métier de bonneterie circulaire selon la revendication 1, caractérisé en ce qu'on prévoit entre la section d'accélération et de démêlage (22) et l'ouverture de sortie (25), dans le sens de la rotation, une section de détachement (24) également entourée par le couvercle (23).
3. Métier à tricoter ou métier de bonneterie circulaire selon la revendication 1 ou 2, caractérisé en ce que le cylindre de démêlage (10) est entraîné à une vitesse telle que les fibres sont dégagées automatiquement de la garniture (13) dans la zone de l'ouverture de sortie (17) ou de la section de détachement (24) et sont transportées à travers l'ouverture de sortie (17, 25).
4. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 3, caractérisé en ce que le couvercle (23) comporte une autre ouverture pour produire un courant d'air qui parcourt la zone de détachement (24) en direction de la zone d'incorporation (11) et provoque ou favorise le détachement des fibres.
5. Métier à tricoter ou métier de bonneterie circulaire selon la revendication 4, caractérisé en ce que le courant d'air a une vitesse d'écoulement qui est supérieure à la vitesse périphérique du cylindre de démêlage (10).
6. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 5, caractérisé en ce que le couvercle (15, 23) fait partie d'un carter (28) qui entoure de tous les côtés le cylindre de démêlage (10) au moins entre l'ouverture d'entrée (16) et l'ouverture de sortie (17, 25).
7. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 4 à 6, caractérisé en ce que l'ouverture est disposée dans la zone de détachement (24) et est reliée à une buse soufflante (34).
8. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 4 à 6, caractérisé en ce que l'ouverture est une fente s'étendant sur la largeur de la surface périphérique du cylindre de démêlage (10).
9. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 8, caractérisé en ce que le couvercle (15, 23), ou le carter (28) comporte un prolongement (44) s'étendant au-delà de la zone d'incorporation (11) et réalisé en tant qu'élément de maintien.
10. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 9, caractérisé en ce que le couvercle (15, 23) ou le carter (28) comporte un élargissement (45) s'étendant au-delà de la zone d'incorporation (11) et réalisé en tant qu'élément couvrant.
11. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 10, caractérisé en ce que la zone d'incorporation (11) est disposée parallèlement à l'axe du cylindre de démêlage (10).
12. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 11, caractérisé en ce que la garniture (13) est constituée par une garniture rigide enroulée en spirale ou par des dents (14) ou des aiguilles (37, 73) essentiellement rigides, positionnées individuellement, dont le mode de positionnement est également en spirale.
13. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 12, caractérisé en ce que la distance entre le dispositif d'alimentation (7) pour la bande de fibres et le cylindre de démêlage (10) est réglable en fonction de la longueur des fibres.
14. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 13, caractérisé en ce que la section d'accélération et de démêlage (18, 22) et la section de détachement (24) ont une longueur correspondant à la plus grande longueur de fibres coupées se présentant.
15. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 14, caractérisé en ce que, dans la paroi latérale du carter (28) disposée sur le côté échappement des aiguilles à tricoter (3), un canal (41, 42) coopère avec une buse soufflante (38, 43) agissant sur l'orientation des fibres incorporées.
16. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 15, caractérisé en ce qu'on prévoit au moins un élément d'orientation mécanique ou électrostatique pour orienter les fibres incorporées.
17. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 16, caractérisé en ce que le couvercle (54, 74, 87) comporte, disposée derrière la zone d'incorporation (11), une section de guidage de l'air et des fibres (54, 77, 93) qui comporte une extrémité antérieure (62, 96) tournée vers la zone d'incorporation (11), agissant comme arête de séparation séparant le courant d'air sortant de l'ouverture de sortie (57, 79, 92) en un courant principal (60, 82) sortant dans l'atmosphère et un courant secondaire (61, 83) passant entre la section de guidage (54, 77, 93) et le cylindre de démêlage (51, 72, 86), et une surface de guidage (63, 84, 95) agissant en tant que surface d'orientation et de peignage pour toutes les touffes de fibres (64, 85) mises en place.
18. Métier à tricoter ou métier de bonneterie circulaire selon la revendication 1, caractérisé en ce que l'extrémité antérieure (62, 96) de la section de guidage (54, 77, 93) tournée vers la zone d'incorporation (11) est à une distance radiale du cylindre de démêlage (51, 72, 86) plus petite que la distance correspondante de la partie (65) de la section de détachement (56, 91) adjacente à l'ouverture de sortie (57, 79, 92), mais toutefois plus grande que la distance correspondante de la section d'accélération et de démêlage (55, 88), et que l'extrémité postérieure (66, 99) de la section de guidage (54, 77, 93) tournée vers la zone d'incorporation (11) est à une distance radiale du cylindre de démêlage (51, 72, 86) qui est sensiblement égale à la distance correspondante de la section d'accélération et de démêlage (55, 88).
19. Métier à tricoter ou métier de bonneterie circulaire selon la revendication 18, caractérisé en ce que la partie de la surface de guidage (63, 84, 95) située entre l'extrémité antérieure (62, 96) et l'extrémité postérieure (66, 99) est à une distance radiale du cylindre de démêlage qui diminue progressivement de l'extrémité antérieure vers l'extrémité postérieure.
20. Métier à tricoter ou métier de bonneterie circulaire selon la revendication 18 ou 19, caractérisé en ce que la section de guidage (54, 77, 93) a une longueur adaptée à la longueur maximale des fibres à travailler.
21. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 18 à 20, caractérisé en ce que l'extrémité antérieure (62, 96) de la section de guidage (54, 77, 93) tournée vers la zone d'incorporation (11) est arrondie.
22. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 18 à 21, caractérisé en ce que l'extrémité antérieure (62, 96) de la section de guidage (54, 77, 93) est à une distance radiale du cylindre de démêlage (51, 72, 86) qui correspond au maximum à un tiers de la distance correspondante de la partie de la section de détachement adjacente à l'ouverture de sortie (57, 79, 92).
23. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 17 à 22, caractérisé en ce que la section de guidage (54, 77,93) est montée de façon à pouvoir se déplacer.
24. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 17 à 23, caractérisé en ce que la section de guidage (93) est constituée par un volet (94) dont l'extrémité postérieure (99) éloignée de la zone d'incorporation (11) est montée basculante.
25. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 24, caractérisé en ce que la section de détachement (76, 91) est à une distance radiale du cylindre de démêlage (72, 86) qui augmente d'abord à partir de la section d'accélération et de démêlage (88), et reste constante ou diminue à nouveau en direction de l'ouverture de sortie (79, 92).
26. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 25, caractérisé en ce que la partie de la section de détachement (76, 91) adjacente à l'ouverture de sortie (79, 92) est réalisée sous forme de tremplin ou de rampe (81, 89, 107).
27. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 26, caractérisé en ce que la section de détachement (56, 76, 91) s'étend sur un angle supérieur à 100°.
28. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 27, caractérisé en ce que le couvercle (15, 23) est prévu également dans la région de la zone d'incorporation (11) et comporte dans cette zone une fente (20, 30) prévue pour le passage des aiguilles à tricoter ou à mailler (3).
29. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 28, caractérisé en ce que le couvercle (15, 23) est également prévu dans la région de la zone d'incorporation (11) et comporte des parois latérales disposées dans cette zone, dans chacune desquelles est ménagée une ouverture de passage (19, 29) pour les aiguilles à tricoter ou à mailler (3).
30. Métier à tricoter ou métier de bonneterie circulaire selon la revendication 29, caractérisé en ce que les ouvertures (19, 29) sont réalisées en forme de U.
31. Métier à tricoter ou métier de bonneterie circulaire selon l'une des revendications 1 à 30, caractérisé en ce que la largeur du cylindre de démêlage (10) est au moins égale à cinq fois, de préférence au moins égale à dix fois à l'écartement des aiguilles calculé d'après la répartition des aiguilles, et que la zone d'incorporation (11) commence avant le cylindre de démêlage (10), et finit après celle-ci, dans le sens de rotation du cylindre à aiguilles (2).
EP81108006A 1980-10-11 1981-10-07 Métier à tricoter circulaire pour fabriquer un tricot pelucheux ayant des fibres insérées Expired EP0049857B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108006T ATE7934T1 (de) 1980-10-11 1981-10-07 Rundstrick- oder rundwirkmaschine zur herstellung von florware mit eingekaemmten fasern.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3038547 1980-10-11
DE3038547 1980-10-11
DE19813107714 DE3107714A1 (de) 1980-10-11 1981-02-28 Strick- oder wirkmaschine zur herstellung von florware mit eingekaemmten fasern
DE3107714 1981-02-28

Publications (2)

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EP0049857A1 EP0049857A1 (fr) 1982-04-21
EP0049857B1 true EP0049857B1 (fr) 1984-06-13

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EP81108006A Expired EP0049857B1 (fr) 1980-10-11 1981-10-07 Métier à tricoter circulaire pour fabriquer un tricot pelucheux ayant des fibres insérées

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US (1) US4458506A (fr)
EP (1) EP0049857B1 (fr)
CA (1) CA1174066A (fr)
DD (1) DD200473A5 (fr)
ES (1) ES506487A0 (fr)
IL (1) IL63972A (fr)
MX (1) MX153881A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532780A (en) * 1983-10-07 1985-08-06 Mayer, Wildman Industries, Inc. Pneumatic fiber recovery and redistribution system for sliver high pile fabric knitting machines
US4592213A (en) * 1984-09-05 1986-06-03 Mayer, Wildman Industries, Inc. Pneumatic fiber recovery and redistribution system for sliver high pile fabric knitting machines
DE3433642A1 (de) * 1984-09-13 1986-03-20 Sulzer Morat Gmbh, 7024 Filderstadt Verfahren und rundstrickmaschine zur herstellung von strickwaren mit eingekaemmten fasern
DE3433643A1 (de) * 1984-09-13 1986-03-20 Sulzer Morat Gmbh, 7024 Filderstadt Verfahren und rundstrickmaschine zur herstellung von strickwaren mit eingekaemmten fasern
DE19851403B4 (de) * 1998-11-07 2009-11-12 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine zur Herstellung von Strickwaren mit eingekämmten Fasern
US6370921B1 (en) * 2001-04-18 2002-04-16 V2 Composite Reinforcements, Inc. Tubular knitting machine
CN102286811A (zh) * 2011-07-14 2011-12-21 昆山牧丰纺织有限公司 絮状纤维喂入设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014355A (en) * 1958-04-07 1961-12-26 Wildman Jacquard Co Method and means for feeding fibers to a knitting machine
US3295337A (en) * 1965-10-22 1967-01-03 Amphenol Corp Guard for carding mechanisms of knitting machines
GB1230331A (fr) * 1969-03-21 1971-04-28
BE755938A (fr) * 1969-09-09 1971-02-15 Bunker Ramo Appareil d'alimentation en fibres des machines a tricoter les tissus a poils
US3768119A (en) * 1970-12-31 1973-10-30 Curlator Corp Machine for forming random fiber webs
CS167567B1 (fr) * 1972-10-02 1976-04-29
DE2448585C3 (de) * 1974-10-11 1986-05-07 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Auflöseeinrichtung für eine Offen- End-Spinnvorrichtung
US4067181A (en) * 1975-01-23 1978-01-10 Ernst Fehrer Fiber-disintegrating unit for a spinning machine
FR2319728A1 (fr) * 1975-07-29 1977-02-25 Mecanique Ste Gle Perfectionnements aux metiers a tricoter circulaires
US4109453A (en) * 1976-04-26 1978-08-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber separating device of an open-end spinning apparatus
US4044427A (en) * 1976-05-21 1977-08-30 Rogers Corporation Comber roll
ZA795305B (en) * 1978-10-19 1980-09-24 Univ Leeds Ind Service Ltd Apparatus for feeding fibres to the carding cylinder of a carding machine and a carding machine incorporating such apparatus

Also Published As

Publication number Publication date
ES8207243A1 (es) 1982-09-01
US4458506A (en) 1984-07-10
CA1174066A (fr) 1984-09-11
ES506487A0 (es) 1982-09-01
MX153881A (es) 1987-02-02
EP0049857A1 (fr) 1982-04-21
DD200473A5 (de) 1983-05-04
IL63972A (en) 1985-03-31
IL63972A0 (en) 1981-12-31

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