EP0293956B1 - Procédé et dispositif pour traiter les fils de tricotage au bord du tricot - Google Patents

Procédé et dispositif pour traiter les fils de tricotage au bord du tricot Download PDF

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Publication number
EP0293956B1
EP0293956B1 EP88200833A EP88200833A EP0293956B1 EP 0293956 B1 EP0293956 B1 EP 0293956B1 EP 88200833 A EP88200833 A EP 88200833A EP 88200833 A EP88200833 A EP 88200833A EP 0293956 B1 EP0293956 B1 EP 0293956B1
Authority
EP
European Patent Office
Prior art keywords
knitting
needle
thread
yarn
finger
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 - Lifetime
Application number
EP88200833A
Other languages
German (de)
English (en)
Other versions
EP0293956A1 (fr
Inventor
Ernst Goller
Hans Günther Haltenhof
Bertram Glauner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H Stoll GmbH and Co KG
Original Assignee
H Stoll GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Priority to AT88200833T priority Critical patent/ATE70318T1/de
Publication of EP0293956A1 publication Critical patent/EP0293956A1/fr
Application granted granted Critical
Publication of EP0293956B1 publication Critical patent/EP0293956B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • D04B1/126—Patterned fabrics or articles characterised by thread material with colour pattern, e.g. intarsia fabrics
    • 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
    • D04B15/06—Sinkers
    • 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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/56—Thread guides for flat-bed knitting machines
    • D04B15/565—Associated thread-clamping or thread-severing devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/24—Flat-bed knitting machines with independently-movable needles for producing patterned fabrics
    • D04B7/26—Flat-bed knitting machines with independently-movable needles for producing patterned fabrics with colour patterns

Definitions

  • the present invention relates to a method and a device for treating the knitting yarns and / or a separating thread along at least one edge of a knitted piece and / or at the transition from one knitted piece to the next during its manufacture by means of a flat knitting machine according to the preamble of claim 1 and that of claim 15.
  • the knitting yarns and / or the separating thread are cut off within a knitted piece or at the transition from one knitted piece to another, but this must be done in a complex manner.
  • the cutting of the knitting yarn is carried out at one and / or the other end of the knitted piece area in question when the thread guide moves away from the needle space.
  • the knitting yarn, which is fed with a certain thread tension, must be clamped with a clamping device before being cut off, so that the cut end of the thread cannot slip through the thread guide.
  • a cutting device and a clamping device are provided on both sides and outside the needle space, which hold the cut end coming from the thread guide until this thread is knitted again or the thread guide is in again Activity brought on. In this way, however, it is only possible to hold and cut two knitting yarns at the same time. If, on the other hand, more knitting yarns and thus thread guides are used, the clamping devices must be arranged in the area of the thread guide. Then again with one If these knitting yarns are knitted, the thread end hanging from the thread guide or from the clamping device must be caught and held again by means of a further device until a certain length of the knitting yarn has been knitted.
  • two clamping devices are required, namely one in the area of the thread guide for clamping before cutting off the knitting yarn and one under the needle space in order to be able to hold the end of the yarn when knitting again.
  • catching or gripping the end of the knitting yarn below the first clamping device is relatively problematic, since this end not only hangs down, but can also protrude laterally.
  • the knitting yarn or separating thread to be cut remains in Advantageously, as long as there is sufficient tension until the thread guide in question moves towards the needle space or into the needle space, the knitting yarn or the separating thread is automatically sufficiently held in the knitted fabric or in the first stitches of the respective stitch row.
  • the knitting yarn or separating thread can be retained either according to the features of claim 2 or 16 or according to the features of claim 3 or 17. In the former case, only a single finger element is required on one or both sides of the knitted piece, while in the second case, only a short auxiliary knitted piece is produced in the usual and easily controllable manner.
  • DE-PS 1 240 616 it is known to use a deflecting finger for the yarn to be processed in a so-called cotton machine, that is to say a flat weft knitting machine, but the deflecting finger is used there because the yarn is from the detached previous item runs to the thread guide in a position perpendicular to the needle so that the thread can be placed between the needles to produce a new item.
  • the deflecting finger must additionally perform a swiveling movement. This deflecting finger, which only comes into action when the previous item has left the needle space and has blown off, thus has a different function.
  • the cutting device is arranged in the region of the finger element or is formed as part of it, so that the yarn or thread ends protruding from the knitted edge can be kept short.
  • the finger element can be arranged in a stationary manner on one or both edge regions of the needle bed, which can be achieved in a structurally simple and space-saving manner.
  • the finger element can be arranged by its movability according to the selected knitted fabric width, which reduces the paths to be traveled for the thread guide and shortens the cut yarn or thread ends protruding from the knitted fabric.
  • the stored thread guides remain connected to their associated knitting yarn or separating thread until the yarn in question is knitted again or held in a new course of a new piece of knitted piece area to be started.
  • the knitting yarns can be cut off at the beginning of each repeat area in which they are used, so that there are no loops from one repeat area to another.
  • a second cutting of the knitting yarn or separating thread takes place after re-knitting in the auxiliary knitted piece, laying a float and initial knitting in the new course of the new knitted piece area of the same color.
  • the auxiliary knitted piece to be regarded as waste is immediately separated from the actual knitted piece.
  • the finger element is advantageously integrated into the needle bed, so that no additional space is required at other points on the machine.
  • a cutting needle introduced at a specific point on the needle bed is used, which can interact with a cutting plate arranged in the opposite needle bed to form the cutting device.
  • a conventional knitting needle as the finger element, which has the advantage that any needle within the needle bed can be used and thus an adjustment to the knitting width is easily possible.
  • the cutting device can then be provided on the lock slide, it being expedient for simple cutting can, in addition to the deflecting knitting needle, drive out a stabilizing knitting needle between which two knitting needles are then cut.
  • two finger elements are provided on one or both sides of the knitted piece, in the form of a knitting needle in the front needle bed and a facing knitting needle in the rear needle bed. Since the knitting yarn or the separating thread is placed around both knitting needles, there is a short and tensioned yarn section between these two deflecting needles, in which cutting can be carried out in a very favorable and targeted manner. Further measures to prevent the yielding of the thread to be cut are not necessary because, firstly, the thread section in question is held securely and tightly by the two deflecting needles and, moreover, it is advantageously cut vertically from above. Furthermore, in this way the cutting device is immersed in the space already present between the needle bed combs. It is expedient according to a variant of claim 37 to use the spreading or separating wedge to force the other knitting yarns or separating threads present in this space out of the path of the cutting device.
  • This preferred exemplary embodiment according to claim 38 can also advantageously be used there be where the carriage assembly is provided with several locks arranged one behind the other and coming into effect.
  • the knitting yarn or separating thread section designed as a loop between the deflecting needle and the knitted piece is brought into the area of the cutting device with the aid of a suction device after the loop has been thrown off the deflecting needle.
  • the end of the loop is then cut off and suctioned off by means of the suction device. Since this takes place below the needle bed arrangement, contamination of the machine by cut threads is avoided.
  • the device 11 has a deflecting finger 36 which is arranged on one side of the needle bed arrangement 14 of the outermost needle 16, but is non-displaceably arranged outside the needle space.
  • the deflection finger 36 is arranged in the area between the front and rear needle beds 12, 13 such that it protrudes approximately at the level of the crest of the needle beds 12, 13 obliquely from above or below into the path of the yarn to be inserted by the thread guide and can be moved transversely to the thread path is or can be moved there and withdrawn by a corresponding combined movement. It goes without saying that a corresponding deflecting finger can also be provided at the other end of the needle bed arrangement 14.
  • thread guides 21 to are provided as there are different yarns (knitting yarns 26 to 29, separating thread 30).
  • the individual thread guides are used in such a way that at the end of a knitted piece area 41 to 45 of a certain color, the thread guide 21 to 24 concerned is switched off and is only brought back into operation when the same color is used again in a later knitted piece area of the same knitted piece 32 or a subsequent 33.
  • the thread guides 21-24 are switched off at one end of the needle bed arrangement 14 beyond the deflection finger 36.
  • the basic mode of operation is as follows: At the end of a knitted piece area 41-44 of a certain color, as mentioned, the thread guide 21-24 in question is placed on the side of the deflection finger 36 which faces away from the knitted piece 32, 33. This thread guide 21-24 remains standing until a knitted piece area 41-44 is to be started again with this color, the yarn of this color always remaining connected to both the end of the respective knitted piece area 41-44 and to the thread guide 21-24 ( see upper knitted piece 33). When a knitted piece area 41-44 starts again with this color, the deflection finger 36 comes into operation.
  • the knitting yarn 26-29 of this color wraps around the deflecting finger 36.
  • the deflecting finger 36 is provided at one point on its circumference with a cutting device 37 which, for example, can be connected to a filament or a extendable knife can be.
  • This cutting device 37 comes into action when the knitting yarn in this first course of the new area 41-44 of this color has been knitted over a certain number of stitches. Then this yarn 26-29 is cut off using the cutting device 37 (see lower knitted piece 32).
  • the number of stitches over which the knitting yarn 26-29 must be knitted before the cutting device 37 cuts the knitting yarn depends on how many stitches are required so that the knitting yarn cannot be pulled out by the usual yarn tension acting in the knitted fabric.
  • the length of the thread tail 35 of the separating thread 30 from the previous knitted piece 33 can be quite considerable.
  • the associated thread guide 25 runs straight to the right during the knitting of the separating thread 30 to a separating or transition region 45 and the separating thread 30 has just been cut off.
  • the knitting yarn 26 of this knitted piece area 41 which at the end of the following knitted piece area 42 of a different color is integrated or briefly knitted in together with the separating thread 30. This is done with all knitting yarns 26-29 and the separating thread 30 over the entire length of the knitted piece 32.
  • the deflecting finger 36 comes into operation.
  • the separating thread 30 is first knitted and separated after a certain number of knitted stitches. The separation is initially carried out solely on the separating thread 30, since this is the only one which loops around the deflecting finger 36 by approximately 180 ° and thus comes into contact with the cutting device 37.
  • the knitting yarn 26 in question is separated after knitting over a few stitches in the first stitch row by the cutting device 37.
  • the individual knitting yarns 42-44 of different color from the preceding knitted piece 32 are bound in each case one after the other, for example one knitting yarn from the previous knitted piece per stitch row can be bound in at the edge.
  • Each time such a knitting yarn 42-44 of a certain color is incorporated it is cut off by the cutting device 37 since it wraps around the deflecting finger 36 by approximately 180 °, so that the knitting yarn in question is kept in the bound state and remains connected to the thread guide. Then the yarn 27 is knitted and the yarns 28 and 29 knitted into the following area 42, etc.
  • the binding is carried out in such a way that the thread guide 21-25 in question is shifted into the knitted fabric by 3 to 4 needles or the like to the right and then returned.
  • the knitting yarns are knitted one after the other from the finished area, depending on which area of the knitted piece is approaching, while the other knitting yarns are bound into the respective knitted piece area at the end and at the edge.
  • the thread tails 34 'of all knitting yarns 26-29 or the separating thread 30 are equally short.
  • FIG. 2 shows a second exemplary embodiment
  • the differences from the exemplary embodiment of FIG. 1B are that firstly, deflecting fingers 136, 138 are provided along both edges of a knitted piece 132, together with cutting devices 137, 139.
  • the deflecting fingers and cutting devices 136, 137 and 138, 139 combined in one unit can also be moved along the needle bed arrangement 14, so that they can be adjusted to the knitted width at any point on the needle bed arrangement 14.
  • the unit consisting of cutting device 137, 139 and deflection fingers 136, 138 can also be retraced if the knitting width changes.
  • the basic mode of operation remains in accordance with the function described in FIG.
  • the individual knitting yarns 126-129 or the separating thread 130 are, depending on whether the end of the relevant knitted piece area 41-44 is provided on the left or right of the knitted piece 132, 133, along a knitted piece 132, 133 along one or the other edge pulled up and bound, if they are not knitted, and cut off one after the other in a corresponding manner at the end of the respective knitted piece 132 or 133. This can be done as shown in Fig. 1B, so that both short ends or tails of the knitting yarns 126 and the separating thread 130 result at the end of the one piece of knitting 132 and at the beginning of the following piece of knitting 133.
  • the knitting yarns 126-129 are only cut off at the end of a knitted piece 132, 133 when the yarn concerned is knitted again without having been involved beforehand. Then there are thread tails 135 of different lengths at the end of the first knitted piece 132 and equally short thread tails 134 at the beginning of each knitted piece area 141-144 of the second knitted piece 133. In both cases, short or narrow loops are made within the respective edge of the knitted piece 132, 133 in question the knitting yarn 126-129 and the separating thread 130 are provided.
  • the path of the separating thread guide 125 is additionally drawn in dash-dotted lines in FIG. 2, the deflection point of which may lie between the last needle and the unit 138, 139, but is preferably beyond this unit.
  • FIG. 2A shows an example of an arrangement of a unit comprising a deflection finger and a cutting device, which units 136, 137 and 138, 139 are provided, for example, on a bar 46 which is arranged to be movable up and down from above in the direction of the double arrow A and in this way brings these units into or out of action.
  • a bar 46 which is arranged to be movable up and down from above in the direction of the double arrow A and in this way brings these units into or out of action.
  • a bar can instead also be provided below the needle bed arrangement 14, so that the unit 136, 137 or 138, 139 consisting of deflecting fingers and cutting device can be brought into the path of the thread guide from below instead of from below.
  • both unevenly long knitting yarn ends or separating thread ends and the short loops provided along the edge or edges of a knitted piece are to be avoided, then it is expedient to treat the knitting yarns 226-229 or the separating thread 230 according to the exemplary embodiment in FIG. 3.
  • the two units comprising holding fingers 236 and cutting device 237 or 238 and 239 are either arranged stationary on a region of the needle arrangement 14 or can be moved along the needle bed arrangement 14, so that adjustment to different knitted fabric widths is possible.
  • an auxiliary knitted piece 51 and 52 is knitted on both sides of the edges thereof.
  • each knitted piece area 241-244 or separation area 245 the respective knitting yarn is floated over a few needles, within which area the unit 236, 237 or 238, 239 of holding fingers and Cutting device is arranged, knitted into a row of stitches of the auxiliary knitting piece 51 and 52 and then the thread guide 221-225 is turned off with the knitting yarn of the relevant color or the separating thread.
  • this knitting yarn is cut off with the aid of the cutting device 237 or 239.
  • this knitting yarn 226-229 is knitted again by moving the thread guide 221-224 in question to the knitted piece 232, 233 over a short course in the auxiliary knitted piece 51 or 52 and then along one Float 54 placed over the holding finger 236 and the cutting device 237.
  • the cutting device 237 comes into operation and cuts this knitting yarn 226-229.
  • ends 234 of the knitting yarns 226 to 229 or the separating thread 230 arise both at the beginning and at the end of a knitted piece area 241 to 245.
  • the auxiliary knitted piece 51, 52 which is to be assessed as waste, results in physical separation from the (main) knitted piece 232, 233 and has considerably fewer rows of stitches than the main knitted piece, since it per pattern or knitted piece area 241 to 244 3 has an auxiliary knitted piece on both sides of the knitted piece and the knitted piece regions 241 to 244 alternately appear in the left or right auxiliary knitted piece in the form of two stitch rows.
  • each auxiliary knitted piece 51, 52 consists of stitch rows which are knitted together like the main knitted piece, each stitch row of the auxiliary knitted pieces 51 , 52 has an open thread end towards the main knitted piece, while at the end facing away from the main knitted piece, as shown in FIG. 3, rows of stitches of the same color are connected to one another from repeat to repeat. It is understood that it is also possible to arrange it this way to provide that, according to FIG. 1, the thread guides are each placed on only one side of the knitted piece 232, 233 and therefore only one auxiliary knitted piece is provided on one side.
  • FIGS. 4 to 8 show exemplary embodiments in which the finger elements, which in the exemplary embodiments in FIGS. 1 to 3 are designed as separate deflection or holding fingers, are formed by corresponding needles in the needle bed arrangement 14.
  • a cutting needle 56 forming a deflecting finger element 236 is provided in one, for example, front needle bed 312 on one of the knitted sides or on both knitted sides, while a cutting plate 58 is arranged in the other, for example rear needle bed 313, and the is assigned to the respective cutting needle 56.
  • a cutting needle 56 in one needle bed and a cutting plate 58 which is offset by half a needle pitch in the other needle bed in the usual needle channels are provided so that they can be moved back and forth in each case on the edge side of the knitted fabric to be produced.
  • Cutting needle 56 and cutting plate 58 which together form a cutting device 237, can, like the adjacent knitting needles 16, be driven out and retracted in the usual way with the aid of locks on the carriage arrangement (not shown).
  • Cutting needle and cutting plate 56, 58 are at a certain distance from the relevant knitted edge or the outermost working knitting needles 16, the distance being several needles.
  • the cutting needle 56 like the other knitting needles 16, is provided with a hook-shaped head 61, although the tongue can be omitted.
  • the front end of the shaft 62 of the cutting needle 56 has a cutting edge 63, while the cutting plate 58 has a counter cutting edge 66 on the underside of its nose 64.
  • a knitting yarn 326 (or the separating thread) is to be placed around the deflecting finger element (cutting needle 56) in one of the ways shown in FIGS. 1 and 2 with the help of the thread guide in question, when the knitting yarn 326 of the knitted piece area 341 is knitted again after the subsequent knitted piece area 342 4B or 5A, the cutting needle 56 is driven out in the catching position or RR position and in the return movement, the thread guide 321 which has been turned off so far puts the knitting yarn 326 around the head 61 of the cutting needle 56 ; 4C, the knitting yarn 326 is knitted over a few needles 316 in the first row of the following knitted piece area, in a multi-lock machine with a lock system following the first lock system, the cutting needle 56 is driven out again and the cutting plate 58 is also driven out, with the two needle beds simultaneously 312, 313 are offset from one another in such a way that the mutually facing side surfaces of cutting needle 56 and cutting plate 58 touch.
  • the cutting needles 56 and cutting boards 58 can replace certain knitting needles 316 along the needle bed arrangement 314 in any manner or can be inserted into the relevant needle bed 312, 313 instead.
  • one of the knitting needles 416 is used as the deflecting finger element 436.
  • this deflecting needle 436 is at a certain distance from the knitting needle 416 working at the edge.
  • this deflecting needle 436 is provided with a further knitting needle 416 'to stabilize the knitting yarn to be separated.
  • a non-working knitting needle 416 is arranged between the two needles 436 and 416 ', or the two needles 436 and 416' are adjacent to one another.
  • the cutting device 437 is provided only schematically in FIG. 6C on the relevant slide 18 of the slide arrangement 17, this being, for example, as Filament, can be formed as a shooting knife, as a laser cutting device or the like.
  • the function of this embodiment in the re-knitting of the knitting yarn 426 knitted in the knitted piece area 441 in a new knitted piece area after the knitting yarn 427 of a different color has been knitted into the knitted piece area 442 is as follows: With the forward movement (arrow B in FIG. 6A) of the carriage 18 and the relevant thread guide 422, the last course of the knitted piece area 442 is knitted and the thread guide 422 is then switched off. In the return movement (arrow C in FIG. 6B), the thread guide 421 of the knitting yarn 426 which is now to be knitted is carried along by a thread guide driving pin 67 (FIG. 6B) assigned to a knitting lock.
  • a thread guide driving pin 67 (FIG. 6B) assigned to a knitting lock.
  • the lock (not shown) assigned to the thread guide driver pin (67) first drives the deflecting needle 436 and then the stabilizing needle 416 '.
  • the thread guide 421 inserts the knitting yarn 426 into the deflecting needle 436 and the stabilizing needle 416' (see FIG. 6C).
  • the relevant cutting device 437 which cuts this knitting yarn 426 between the two needles 436 and 416 ', comes into operation, for example, during a brief stop of the carriage arrangement 17.
  • This can The knitting yarns or the separating threads are cut off at any point on the needle beds, so that an adaptation to different and also to changing knitting patterns during manufacture is possible.
  • two deflecting finger elements 536 and 536 ' are used, in the form of one of the knitting needles 516 in the front and rear needle bed 512 and 513, respectively.
  • the two knitting needles used as deflecting fingers in the two needle beds 512, 513 are arranged opposite each other or offset by half a needle pitch.
  • a cutting device 537 is either attached to the carriage arrangement (not shown) at the front and / or rear end, or it can be displaced in a different way along the needle space or the needle bed arrangement 514 by means of a mechanism (also not shown).
  • the cutting device 537 has a shaft 71, on the front end of which faces the needle bed arrangement 514 a separating wedge 72 is arranged and which is provided on one side surface with a projecting blade 73.
  • the cutting device 537 can be moved, for example, according to FIG. 7B, from above the needle bed arrangement 514 in the vertical direction, but it can also be designed to be pivotable accordingly.
  • Knitting yarns in a new knitted piece area after the knitting yarn 527 of a different color has been knitted into the knitted piece area 542 is as follows: after the thread guide 522 has been switched off after knitting the last course of the knitted piece area 542, the thread guide 521 which has been parked up until now comes into operation again. As soon as one of the locks, not shown, of the carriage arrangement, also not shown, moves over the front and rear needle beds 512, 513, the two deflecting needles 536 and 536 ', which have a certain distance from the last working knitting needle in both needle beds, are in the catching position or RR- Position driven out one after the other.
  • the thread guide 521 first folds the knitting yarn 526 into and into the deflecting needle 536, for example in the front needle bed 512 and then around and into the deflecting needle 436 'in the rear needle bed 413, as can be seen from FIG. 7A. After a float line 553, the first course of the new knitted piece area is started. As in the other exemplary embodiments, the cutting device 537 comes into operation after a multi-stitch integration of this first row of stitches into the preceding knitted piece area 542.
  • the separating wedge 72 will first push those threads 527-530 of the other thread guides to the left and right before the cutting blade 73 between the two deflecting needles 536 and 536 'cuts the knitting yarn 526. Since the knitting yarn 526 is stretched between these two deflecting needles and the cutting device 537 comes from above, a simple separation of the knitting yarn is possible.
  • the cutting device 537 dips into the space between the two deflecting needles 536 and 536 'or the slot between the two needle bed combs. The cutting device 537 comes into operation during a short stop of the carriage arrangement.
  • a thread and thus a thread guide is usually assigned to each lock system, so that four knitting yarns 526 / 1-4 with four thread guides are available for each color to be knitted.
  • the four thread guides for the color in question are activated one after the other and the associated knitting yarns 526 / 1-4 are placed over different, but adjacent pairs of deflecting needles 536 / 1-4 and 536 '/ 1-4, such as this is shown in Fig. 7D. Then these four knitting yarns 526 are successively cut by one and the same cutting device as soon as the threads are knitted over a few stitches.
  • FIGS. 8A and 8B only a deflecting finger element 636 in the form of a conventional knitting needle 616 is used in the front or rear needle bed 612, 613.
  • a suction device 76 containing a cutting device 637, the cup-shaped housing 77 of which is connected on the underside to a suction pipe 78.
  • a suction nozzle 81 provided with an inclined surface 79 is provided within the housing 77.
  • the suction pipe 78 is arranged at the end of the inclined surface 79.
  • the cutting device 637 Above the suction pipe 78, the cutting device 637 is provided, which has a cutting knife 82, which can be moved back and forth in the horizontal direction and is guided in a path 83 in the housing 77.
  • This guideway 83 runs above the suction pipe 78 and below the inclined surface 79 of the suction nozzle 81.
  • the suction device 76 and the cutting device 637 can be moved together along the needle bed arrangement 614 and are preferably provided on both sides of the carriage arrangement.
  • the function of this exemplary embodiment is as follows: If the thread guide 621 previously parked is put into operation again for the new beginning of a new piece of knitted piece or is moved in the direction of the arrow C, it places its knitting yarn 626 in the deflection needle 636, which is in the catch position or RR position has been brought. That about The deflecting needle 636 laid knitting yarn 626 is then knitted after a float 653 to the first course of the new knitted piece area. The deflecting needle 636, which is pulled back after catching the knitting yarn 626, is driven out again by means of one of the next or following locks and, because it works like a conventional knitting needle, drops the knitting yarn 626.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)
  • Socks And Pantyhose (AREA)

Claims (40)

  1. Procédé pour le traitement des fils à tricoter et/ou d'un fil de séparation, le long au moins d'un bord d'un tricot et/ou au passage d'un tricot au suivant, pendant la fabrication dudit tricot, de différents types de fils et/ou de différentes couleurs, au moyen d'une machine à tricoter linéaire, procédé selon lequel le (ou les) fil(s) à tricoter et de séparation est (ou sont) coupé(s) par l'intermédiaire d'une enrouleuse guide-fils, lors du changement d'un type et/ou d'une couleur de fil et/ou lors du passage au tricot suivant, caractérisé par le fait que le fil à tricoter ou le fil de séparation qui, à la fin de la dernière rangée de mailles d'un tricot, passe directement ou indirectement sur l'enrouleuse de guide-fils latérale, lors de la reprise d'une zone de tricot ou d'un tricot, suivant à une certaine distance le précédent, est retenu dans le plan, avant la première rangée de mailles et par le fait que, après que plusieurs mailles de cette première rangée aient été de préférence tricotées, le fil à tricoter ou de séparation est coupé à une faible distance de cette première rangée de mailles.
  2. Procédé selon la revendication 1, caractérisé par le fait que le fil à tricoter ou de séparation est retenu, de sorte qu'il est disposé autour d'au moins un élément de doigt, à l'aide d'une enrouleuse guide-fils.
  3. Procédé selon la revendication 1, caractérisé par le fait que le fil à tricoter ou de séparation est retenu, de sorte qu'il est tricoté à une certaine distance du bord du tricot à quelques rangées de mailles d'un tricot auxiliaire.
  4. Procédé selon la revendication 2, caractérisé par le fait que le fil à tricoter ou de séparation est coupé dans la zone de l'élément de doigt.
  5. Procédé selon la revendication 2 ou 4, caractérisé par le fait que l'élément de doigt avance le long de la planche d'aiguilles et est actionné par son introduction dans l'espace d'aiguille.
  6. Procédé selon l'une des revendications 2, 4 ou 5, caractérisé par le fait que le fil à tricoter ou de séparation qui, à la fin de la dernière rangée de mailles d'une zone de tricot ou d'un tricot, passe directement ou indirectement sur une enrouleuse guide-fils latérale, reste relié à celle-ci.
  7. Procédé selon la revendication 6, caractérisé par le fait que le fil à tricoter ou de séparation dans la ou les zone(s) de tricot dans lesquelles il n'a pas été tricoté ou travaillé, est attaché sur le bord du tricot.
  8. Procédé selon la revendication 7, caractérisé par le fait que tous les fils à tricoter ou de séparation, sont attachés le long de la totalité des tricots sur le ou les bord(s) et sont coupés à la fin du tricot, dès que le fil à tricoter ou de séparation aura été tricoté ou attaché sur le tricot suivant.
  9. Procédé selon la revendication 1 ou 3, caractérisé par le fait que le fil à tricoter ou de séparation, qui, à la fin de la dernière rangée de mailles d'une zone de tricot, passe indirectement sur une enrouleuse guide-fils latérale, est tricoté sur une rangée du tricot auxiliaire et est ensuite coupé entre le bord du tricot et le tricot auxiliaire.
  10. Procédé selon la revendication 2 ou 4, caractérisé par le fait qu'une aiguille est utilisée en tant qu'élément de doigt dans la planche d'aiguilles et qu'elle est mise en activité par un traction courante.
  11. Procédé selon la revendication 10, caractérisé par le fait qu'un disque de coupe de l'aiguille du doigt, sur une planche d'aiguilles, est disposé dans une autre planche d'aiguilles et que le fil à tricoter ou de séparation est ainsi coupé entre l'aiguille du doigt et le disque, de sorte que les planches d'aiguilles sont disposées les unes sur les autres et que le disque et l'aiguille à doigt faisant saillie entrent en contact latéralement.
  12. Procédé selon la revendication 10, caractérisé par le fait que l'aiguille à doigt, ainsi qu'une autre aiguille à tricoter sont mises en traction sur la même planche d'aiguilles, lors de la reprise d'un nouveau tricot, et par le fait que, au moyen d'un dispositif de coupe sur la glissière à came, le fil à tricoter ou de séparation est coupé entre les deux aiguilles.
  13. Procédé selon la revendication 2, caractérisé par le fait que deux éléments de doigt sont utilisés, en particulier une aiguille sur une planche d'aiguilles et une aiguille opposée sur une autre planche d'aiguilles, qui, lors de la reprise d'une nouvelle zone de tricot sont mises en traction, de sorte que le fil à tricoter ou de séparation est situé autour des deux aiguilles à doigt et qu'il est coupé au moyen d'un dispositif de coupe sur la glissière à came, entre les deux aiguilles à doigt.
  14. Procédé selon la revendication 2 ou 10, caractérisé par le fait que le fil à tricoter ou de séparation, une fois qu'il a été tricoté partiellement sur la première rangée de mailles d'un nouveau tricot, est enlevé de l'élément de doigt, et est mis en mouvement par une buse d'aspiration située au dessous de l'installation de planche d'aiguilles et est ensuite coupé de sorte que la pièce en forme de boucle coupée est ensuite aspirée.
  15. Dispositif pour le traitement du fil à tricoter et/ou d'un fil de séparation le long d'au moins un bord d'un tricot et/ou au passage d'un tricot au suivant, pendant la fabrication dudit tricot, au moyen d'une machine à tricoter linéaire, procédé par lequel le (ou les) fil(s) à tricoter ou de séparation peuvent être coupés par une enrouleuse guide-fil lors du changement du type de tricot et/ou de couleur et/ou au passage à un autre tricot, au moyen d'au moins un dispositif de coupe, caractérisé par le fait que le fil à tricoter (26-29 ; 126-129; 226-229 ; 326 ; 426,427 ; 526 ; 626) ou les fils de séparation (30, 130, 230), qui, à la fin de la dernière rangée de mailles d'une zone de tricot (41645 ; 141-145; 241-245 ; 341, 342 ; 441, 442 ; 541, 542 ; 641, 642) ou d'un tricot (32,33 ; 312, 133 ; 232, 233) passe directement ou indirectement à une enrouleuse guide-fils latérale (21-25 ; 121-125 ; 221-225 ; 321 ; 15 421, 422; 521, 522; 621, 622), lors de la reprise d'un tricot, suivant à une certaine distance le précédent, est retenu avant la première rangée de mailles dans le plan, et par le fait qu'après que plusieurs mailles de cette première rangée de mailles aient été de préférence tricotées, le fil à tricoter (26- 29, 126-129, 226-229, 326, 426,427) et le fil de séparation (30,130, 230) peuvent être coupés par le dispositif de coupe (37,137,139,237, 239, 337, 20 437, 537, 637) situé ou pouvant être positionné à une distance restreinte de cette première rangée de maille.
  16. Dispositif selon la revendication 15, caractérisé par le fait que le fil à tricoter (26-29, 126-129, 326, 426, 427, 526, 626) ou le fil de séparation (30, 130) est retenu, de telle sorte qu'à l'aide d'une enrouleuse guide-fils (21-25, 121-125, 321, 421, 422, 521, 522, 621, 622), il puisse être disposé autour d'au moins un élément de doigt (36, 136, 138, 336, 436, 536, 636).
  17. Dispositif selon la revendication 15, caractérisé par le fait que le fil à tricoter (226-229) ou le fil de séparation (230) est retenu et est travaillé à une certaine distance du bord du tricot sur quelques aiguilles de l'un ou des deux côtés d'un tricot auxiliaire (51, 52).
  18. Dispositif selon la revendication 15 ou 16, caractérisé par le fait que le dispositif de coupe (37, 137, 139, 237, 239, 337) constitue une partie de l'élément de doigt (436).
  19. Dispositif selon les revendications 15 à 17, caractérisé par le fait que le mécanisme de coupe (437, 537, 637) peut être transporté le long de la disposition de la planche d'aiguilles.
  20. Dispositif selon la revendication 19, caractérisé par le fait que le mécanisme de coupe (437, 537, 637) est situé sur l'une ou les deux zones latérales de la glissière de came.
  21. Dispositif selon la revendication 16, caractérisé par le fait que l'élément de doigt (136, 138, 236, 238, 336, 436) est situé sur l'un ou sur les deux bords de la planche d'aiguilles (112, 113, 212, 213, 312, 313, 412, 413).
  22. Dispositif selon la revendication 16, caractérisé par le fait que l'élément de doigt (136, 138, 236, 238) peut être mobile le long de la planche d'aiguilles (112, 113, 212, 213).
  23. Dispositif selon les revendications 16, 21 ou 22, caractérisé par le fait que l'élément de doigt (36, 136, 138, 236, 238) de la partie supérieure ou inférieure de l'installation de la planche d'aiguilles (14, 114, 214) est mobile dans l'espace d'aiguille.
  24. Dispositif selon l'une des revendications 15, 16 ou 18-23, caractérisé par le fait que l'enrouleuse guide-fils (21-25, 121-125 ; 321 ; 421 ; 422 ; 521 ; 522; 621 ; 622), peut être arrêtée à la fin d'un tricot jusqu'à la reprise d'un nouveau tricot du même type de fil et/ou de couleur directement auprès de l'élément de doigt (36, 136, 138, 336, 436, 536, 636) et par le fait que le fil à tricoter ou de séparation reste relié à l'enrouleuse guide-fils.
  25. Dispositif selon la revendication 24, caractérisé par le fait que l'enrouleuse guide-fils (21- 25, 121-125, 321, 421, 422, 521, 522, 621, 622) peut se déplacer dans les deux sens sur le tricot dans lequel son fil à tricoter ou de séparation ne doit pas être travaillé ni tricoté, et pour attacher lesdits fils sur le bord du tricot sur quelques aiguilles.
  26. Dispositif selon la revendication 24 ou 25, caractérisé par le fait que le mécanisme de coupe (37, 137, 139, 56, 58, 437, 537, 637), peut être mis en action au début de chaque zone de tricot.
  27. Dispositif selon la revendication 24 ou 25, caractérisé par le fait que le mécanisme de coupe (37, 137, 139, 56, 58, 437, 537, 637) ne peut être actionné qu'au début d'une nouvelle zone de tricot.
  28. Dispositif selon la revendication 17, caractérisé par le fait que le fil à tricoter (226-229) ou de séparation (230), peut être travaillé à la fin d'une zone de tricot (241-245) sur une rangée du tricot auxiliaire (51, 52), par le fait que l'enrouleuse guide-fils (221-225) du tricot est installée de façon contiguë à la fin du tricot auxiliaire et par le fait que le mécanisme de coupe (237, 239) est disposé entre le tricot et le tricot auxiliaire, par lequel le fil à tricoter ou de séparation peut être coupé après la fabrication du tricot auxiliaire.
  29. Dispositif selon la revendication 17 ou 28, caractérisé par le fait que, entre le tricot auxiliaire (51, 52) et la zone de tricot (241-245) ou la pièce de tricot (232, 233), le fil à tricoter (226-229) ou de séparation (230) peut être installé au moyen d'une maille flottante sur le mécanisme de coupe (237-239).
  30. Dispositif selon les revendications 6 ou 21 à 23, caractérisé par le fait que l'élément de doigt est constitué d'une aiguille (56, 436, 536, 636) dans la planche d'aiguilles, qui peut être actionnée par une traction courante.
  31. Dispositif selon la revendication 30, caractérisé par le fait que le mécanisme de coupe (337) est formé par deux disques de coupe (56,58) sur les planches d'aiguilles opposées, et par le fait que, lors de la traction, le fil à tricoter (326-329) ou de séparation (330) peut être coupé par les deux disques de coupe (56, 58), après un mouvement relatif latéral des deux planches d'aiguilles (312, 313).
  32. Dispositif selon les revendications 30 et 31, caractérisé par le fait que l'aiguille à doigt et le disque de coupe sont des éléments de construction (56) similaires.
  33. Dispositif selon la revendication 30, caractérisée par le fait que l'aiguille à doigt (436) est formée par une aiguille à tricoter normale (416).
  34. Dispositif selon les revendications 30 et 33, caractérisé par le fait que dans un espace jusqu'à l'aiguille à doigt (436), une autre aiguille (416') peut être mise en traction avec celle-ci sur la même planche d'aiguilles (412).
  35. Dispositif selon les revendications 16 et 19 ou 20, caractérisé par le fait que deux éléments de doigt sont prévus, en particulier une aiguille (536) dans une planche d'aiguilles (512) et une aiguille (536') dans une autre planche d'aiguilles (513), lesquelles peuvent être actionnées par la traction courante et le fil à tricoter (526) ou de séparation peut être installé autour de celles-ci, et peut être coupé entre les deux aiguilles à doigt (536, 536') au moyen d'un mécanisme de coupe (537).
  36. Dispositif selon la revendication 35, caractérisé par le fait que le mécanisme de coupe (537) est mobile verticalement à partir du haut ou en un mouvement basculant sur le fil à tricoter (536) ou de séparation.
  37. Dispositif selon la revendication 36, caractérisé par le fait que le mécanisme de coupe (537) est muni d'une cale d'extension (72) insérée entre les aiguilles à doigt (536, 536') ou les cames de la planche d'aiguilles, sur la partie supérieure de laquelle est disposée une lame (73).
  38. Dispositif selon l'une des revendications 35 à 37, caractérisé par le fait que plusieurs paires d'aiguilles à doigt (536, 536') sont prévues l'une à côté de l'autre, dans un système à plusieurs cames, dont chaque paire est disposée chacune dans un des fils à tricoter ou de séparation à travailler par l'intermédiaire de la came d'aiguille correspondante.
  39. Dispositif selon la revendication 16 ou 30, caractérisé par le fait que le fil à tricoter (626) ou de séparation peut être enlevé de l'aiguille à doigt (636) et peut être installé dans le mécanisme de coupe grâce à un dispositif d'aspiration (76) et par le fait que l'extrémité bouclée dans le mécanisme de coupe (637) peut être coupée et aspirée par le dispositif d'aspiration (76).
  40. Dispositif selon la revendication 39, caractérisé par le fait que le mécanisme d'aspiration (81) présente une surface oblique (79) sur laquelle le fil à tricoter (626) ou de séparation peut être tendu et par le fait que l'extrémité bouclée (84) fait saillie dans la glissière (83) d'une lame (82) du mécanisme de coupe (637), glissière (83) sur la partie supérieure de laquelle un canal d'aspiration (76) est prévu.
EP88200833A 1987-05-08 1988-04-22 Procédé et dispositif pour traiter les fils de tricotage au bord du tricot Expired - Lifetime EP0293956B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88200833T ATE70318T1 (de) 1987-05-08 1988-04-22 Verfahren und einrichtung zum behandeln der strickgarne laengs des gestrickrandes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873715297 DE3715297A1 (de) 1987-05-08 1987-05-08 Verfahren und einrichtung zum behandeln der strickgarne laengs des gestrickrandes
DE3715297 1987-05-08

Publications (2)

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EP0293956A1 EP0293956A1 (fr) 1988-12-07
EP0293956B1 true EP0293956B1 (fr) 1991-12-11

Family

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Application Number Title Priority Date Filing Date
EP88200833A Expired - Lifetime EP0293956B1 (fr) 1987-05-08 1988-04-22 Procédé et dispositif pour traiter les fils de tricotage au bord du tricot
EP88903248A Pending EP0358653A1 (fr) 1987-05-08 1988-04-22 Procede et dispositif de traitement des fils a tricoter le long du bord du tricot

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88903248A Pending EP0358653A1 (fr) 1987-05-08 1988-04-22 Procede et dispositif de traitement des fils a tricoter le long du bord du tricot

Country Status (6)

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EP (2) EP0293956B1 (fr)
JP (1) JPH02503447A (fr)
AT (1) ATE70318T1 (fr)
DE (2) DE3715297A1 (fr)
ES (1) ES2028251T3 (fr)
WO (1) WO1988008892A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE3843837A1 (de) * 1988-12-24 1990-07-05 Stefan Porkert Flachstrickmaschine, insbesondere flachstrickautomat
IT1257309B (it) * 1992-01-29 1996-01-15 "dispositivo semplificato di pinzatura e taglio, per il cambio automatico del colore del filo in lavorazione nelle macchine rettilinee da maglieria"
DE4407708C2 (de) * 1994-03-08 1996-07-11 Schieber Universal Maschf Flachstrickmaschine
DE4430707A1 (de) * 1994-08-30 1996-03-07 Scheller Gmbh Flachkulierwirkmaschine
DE4431239A1 (de) * 1994-09-02 1996-03-07 Scheller Gmbh Flachstrickmaschine
IT1289292B1 (it) * 1996-05-31 1998-10-02 A R M I S R L Perfezionamenti ad un metodo e ad una apparecchiatura per l'imbrigliamento in corso di tessitura di porzioni terminali di filo
DE19738213B4 (de) * 1997-09-02 2005-11-24 H. Stoll Gmbh & Co. Verfahren zur Herstellung eines Gestrickes auf einer Flachstrickmaschine
DE19844833A1 (de) * 1998-09-30 2000-04-13 Stoll & Co H Fadenklemm- und Schneidvorrichtung für Strickmaschinen
DE10026367A1 (de) * 2000-05-27 2001-11-29 Stoll & Co H Verfahren zum Einbinden eines Strickfadenanfangs und/oder -endes in ein Gestrick
EP3786327B1 (fr) 2017-03-31 2022-02-23 Nike Innovate C.V. Dispositif d'alimentation à tricoter doté d'un dispositif de coupe
US11401638B2 (en) * 2018-05-22 2022-08-02 Fabdesigns, Inc. Method of knitting a warp structure on a flat knitting machine

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US1261050A (en) * 1914-02-06 1918-04-02 Jenckes Knitting Machine Company Knitting-machine.
US1522496A (en) * 1922-11-11 1925-01-13 Burson Knitting Company Yarn clamp for knitting machines
DE723362C (de) * 1940-06-12 1942-08-03 Seyfert & Donner Fadenfuehrer fuer Strick- oder Wirkmaschinen
US2560484A (en) * 1950-06-02 1951-07-10 Alfred Hofmann & Co Means for holding yarn ends
US2746275A (en) * 1953-03-16 1956-05-22 Beautiful Bryans Inc Yarn severing device for straight-bar knitting machines
DE1090810B (de) * 1958-08-29 1960-10-13 Universal Maschinenfabrik G M Vorrichtung an Flachstrickmaschinen fuer den Abzug fortlaufend aneinanderhaengend gestrickter Warenstuecke
US3050971A (en) * 1958-10-24 1962-08-28 Cotton Ltd W Straight bar knitting machines
GB1381375A (en) * 1972-04-07 1975-01-22 Herstal Sa Flat knitting machine
US3831403A (en) * 1973-02-27 1974-08-27 Herstal Sa Device for producing simultaneously two separate fabrics rib on the same head of a rib knitting machine with two needle beds
DE2415885A1 (de) * 1974-04-02 1975-10-30 Stoll & Co H Fadenschneid- ansaug- und klemmvorrichtung
US4347718A (en) * 1979-10-03 1982-09-07 Hospal Medical Corporation Cutting elements for knitting machines
JPS5933787U (ja) * 1982-08-25 1984-03-02 株式会社島アイデア・センタ− 横編機における編糸の挾持切断装置
DD214868A1 (de) * 1983-04-25 1984-10-24 Thueringer Obertrikotagen Veb Vorrichtung zum halten und zufuehrung eines fadenendes an flachstrickmaschinen

Also Published As

Publication number Publication date
EP0293956A1 (fr) 1988-12-07
DE3866782D1 (de) 1992-01-23
WO1988008892A1 (fr) 1988-11-17
EP0358653A1 (fr) 1990-03-21
ATE70318T1 (de) 1991-12-15
DE3715297A1 (de) 1988-11-24
ES2028251T3 (es) 1992-07-01
JPH02503447A (ja) 1990-10-18

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