EP0358653A1 - Procede et dispositif de traitement des fils a tricoter le long du bord du tricot - Google Patents

Procede et dispositif de traitement des fils a tricoter le long du bord du tricot

Info

Publication number
EP0358653A1
EP0358653A1 EP88903248A EP88903248A EP0358653A1 EP 0358653 A1 EP0358653 A1 EP 0358653A1 EP 88903248 A EP88903248 A EP 88903248A EP 88903248 A EP88903248 A EP 88903248A EP 0358653 A1 EP0358653 A1 EP 0358653A1
Authority
EP
European Patent Office
Prior art keywords
knitted
thread
knitting
needle
piece
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.)
Pending
Application number
EP88903248A
Other languages
German (de)
English (en)
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
Publication of EP0358653A1 publication Critical patent/EP0358653A1/fr
Pending legal-status Critical Current

Links

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 concerned 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 Action brought Oird.
  • the clamping devices must be arranged in the area of the thread guide. Should then again with one If these knitting yarns are knitted, the end of the thread 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 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 grasping 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, under appropriate tension until the knitting yarn or separating thread is automatically sufficiently held in the knitted fabric or in the first stitches of the respective stitch row when the thread guide in question moves toward the needle space or into the needle space.
  • 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 necessary 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 to detach the yarn 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 is to be achieved in a structurally simple and space-saving manner.
  • the finger element can be arranged by its movability according to the selected knitted 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 thread guides which have been parked remain connected to their associated knitting yarn or separating thread until the yarn in question is knitted again or held in a new stitch row 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
  • the yarn or thread ends hanging out on the edge or edges of the knitted piece are to be of approximately the same length and, at the same time, one wants to avoid the small or short yarn or thread loops mentioned, it is expedient to present the present invention in the form of the exemplary embodiment according to claim 9 or 28 to perform.
  • the auxiliary knitted piece which consists of two rows of stitches when changing color and knitted piece
  • the knitting yarn or the triple thread can be knitted in the Hi knitted piece can be cut out of the needle space of the actual knitted piece already after the movement of the thread guide.
  • the finger element is advantageously integrated into the needle bed, so that no additional space is required at other locations 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 possible without further ado.
  • 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 it is possible to cut 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, the cutting device is immersed in this way 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.
  • Embodiment according to claim 38 also used there be where the slide 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 sucked 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.
  • FIG. 1A and 1B in schematic representation a partially broken side view of a flat knitting machine during the manufacture of knitted pieces with a device for
  • FIG. 2 shows an illustration similar to that of FIG. 1, but according to a second exemplary embodiment of the present invention
  • FIG. 2A shows a section along the line IIA-IIA of FIG. 2,
  • FIG. 3 shows a representation similar to that of FIGS. 1A and 1B, but according to a third exemplary embodiment of the present invention
  • FIGS. 4A to C show a schematic illustration of side views of a needle bed with a device according to a fourth exemplary embodiment of the present invention, the individual steps being shown in the partial figures,
  • 5A and B show a section along the line VA-VA of FIG. 4B and along the line VB-VB of FIG. 4C,
  • FIGS. 6A and 6B are views similar to those of FIGS. 4A and 4C but according to a fifth exemplary embodiment of the present invention, 6C shows an enlarged view of a section according to circle VIC of FIG. 6B,
  • FIG. 7A shows a schematic plan view of a needle bed arrangement with a device according to a sixth exemplary embodiment of the present invention
  • FIGS. 78 and 7C show a section along the line VIIB-VIIB of FIG. 7A and a view of the cutting device according to arrow VIIC of FIG. 7B,
  • Figure 7D is a schematic representation similar to that of Fig. 7A, but according to a variant in a ' multi-shot system, and
  • FIGS and 8B in a schematic representation a plan view and a side view of a needle bed arrangement with a device according to a seventh embodiment of the present invention.
  • essentially only the front needle bed 12 and partially the rear needle bed 13 of a needle bed arrangement 14 arranged in a V-shape is shown of a flat knitting machine 10.
  • 13 knitting needles 16 are arranged so as to be longitudinally displaceable in a corresponding division, which can also be driven out to work accordingly by means of a slide arrangement 17 which is also only partially shown.
  • the goods are withdrawn in the usual way, ie the fabric of the knitted fabric 19 is withdrawn.
  • a plurality of thread guides 21 to 25 can also be moved back and forth along the needle bed arrangement 14, which the knitting needles 16 feed the relevant yarn 26 to 29 or a separating thread 30.
  • the thread guides 21-25 are usually movable along a rail 31.
  • the knitted pieces 32, 33 being made of different types of yarn and / or thread colors, to be treated during the knitting in such a way that at the transition from one knitted piece to the other and / or along each knitted piece, those passing through the thread guides Knitting yarns or separating threads are alternately cut from one type of thread and / or color to another and / or at the transition to the following piece of knitted fabric, without the need for special devices for clamping, catching and again clamping the knitting threads or separating threads.
  • 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 height 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 25 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:
  • 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 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).
  • the deflection finger 36 comes into operation.
  • the knitting yarn 26-29 of this color is placed 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 separating thread 30 which is then cut off when it comes from the transition from, for example, the first to the second knitted piece 32, 33 is used again at the transition from the second to the third knitted piece, de depending on the length of the knitted piece, the thread tail 35 of the separating thread 30 from the previous knitted piece 33 result in a quite considerable length.
  • 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 bound together 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 deflection finger 36 by approximately 180 ° and thus comes into contact with the cutting device 37.
  • the knitting yarn 26 concerned is knitted through after knitting over a few stitches in the first stitch row. Cutting device 37 separated.
  • 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 preceding 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 moved to the right in the knitted fabric by 3 to 4 needles or the like. is pushed in 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 remaining knitting yarns are bound into the respective knitted piece area at the end and at the edge.
  • 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 of the needle bed arrangement 14.
  • the unit consisting of cutting device 137, 139 and deflection fingers 136, 138 can also be retraced when the knitting width changes.
  • the basic mode of operation remains in accordance with the function described in FIG. 1B:
  • the individual knitting yarns 126-129 or the separating thread 130 are classified according to whether the end of the respective knitted piece range 41-44 left or re * CHTS of the knitted fabric piece 132, 133 is provided along each of a knitted fabric piece 132, 133 at 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 cut off at the end of a knitted piece 132, 133 only 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 formed 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 reversal 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.
  • a knitted piece 51 and 52 is knitted in addition to the knitted piece 232 and 233 on both sides of the edges thereof.
  • the mode of operation is as follows: At the end of each piece of knitted fabric 241-244 or
  • this knitting yarn 226-229 is knitted again by moving the relevant thread guide 221-224 to the knitted piece 232.233 over a short course in the auxiliary knitted piece 51 or 52 and then along one Floating 54 placed over the holding finger 236 and the cutting device 237. As soon as the knitting yarn of this color is knitted along a few stitches in the main knitted piece 232 or 233 of this new knitted piece area 241-244, 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 which are of equal length result 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 regarded as waste, results in physical separation from the (main) knitted piece 232, 233 and has significantly fewer rows of stitches than the main knitted piece, since it per repeat or knitted piece area 241 to 244 3 has an auxiliary knitted piece on both sides of the knitted piece and thus the knitted piece regions 241 to 244 alternately appear in the left and 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 Row of stitches of the secondary knitted pieces 51, 52 has an open thread end towards the main piece of knitted fabric, while at the end facing away from the main knitted piece, 3 rows of stitches of the same color are connected to one another from repeat to repeat. It goes without saying that it is also possible to arrange it this way 1 that the thread guides are parked on only one side of the knitted piece 232, 233 and therefore only one auxiliary knitted piece is provided on only one side.
  • FIGS. 4 to 8 show exemplary embodiments in which the finger elements, which are designed as separate deflection or holding fingers in the exemplary embodiments of FIGS. 1 to 3, 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 needle 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 on the underside has a counter-cutting edge 66 on its nose 64.
  • 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 only schematically shown in FIG.
  • 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. 7B can be moved in a vertical direction from above the needle bed arrangement 514, for example according to FIG. 7B, 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 stitch row 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 catch 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 previous knitted piece area 542. With the lowering of the cutting device 537, the separating wedge 72 will first push those threads 527-530 of the other thread guides to the left and right to the side before the cutting blade 73 between the two deflecting needles
  • the cutting device 537 plunges 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 slide 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 threads 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.
  • the suction pipe 78 is arranged at the end of the inclined surface 79.
  • 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 stitched 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, since it works like a conventional knitting needle, the knitting yarn 626 drops.
  • this knitting yarn 626 is bound into the preceding knitted piece area 642 over a few or a sufficiently large number of stitches.
  • the float region 653 including the loop 84 which has been released from the deflection needle 636, falls down under the action of the suction nozzle 81 and lies on the inclined surface 79 or projects as far as the loop 84 is concerned the guideway 83 of the cutting device 637.
  • the cutting knife 82 is activated and cuts the loop 84; the cut piece is sucked into the suction pipe 78 and sucked off.
  • the knitting yarn 626 is separated, so that the thread tails mentioned in all the previous exemplary embodiments result.
  • the knitting yarns and separating threads according to FIGS. 1 and 2 are bound in at the edge or the production of an auxiliary knitted fabric

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

Abstract

Selon un procédé de traitement des fils à tricoter le long d'au moins un bord d'une pièce tricotée et/ou lors du passage d'une pièce tricotée à une autre pendant le tricotage de pièces composées de fils de types et/ou de couleurs différents dans une machine à tricoter rectiligne, les fils à tricoter qui s'étendent à travers le guide-fils sont sectionnés lorsque l'on change de type et/ou de couleur de fil. Le fil qui mène directement ou indirectement de la fin de la dernière rangée de mailles d'une région du tricot au guide-fils latéralement écarté est retenu lorsque l'on recommence à tricoter une région du tricot suivant la première avec un certain écart sur le plan de la première rangée de mailles, devant celle-ci. Lorsque plusieurs mailles de cette nouvelle rangée de mailles ont été tricotées, le fil est coupé à une distance minime de cette première rangée de mailles. On obtient ainsi une simplification considérable du procédé et de la construction, avec une réduction notable de l'encombrement.
EP88903248A 1987-05-08 1988-04-22 Procede et dispositif de traitement des fils a tricoter le long du bord du tricot Pending EP0358653A1 (fr)

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 (1)

Publication Number Publication Date
EP0358653A1 true EP0358653A1 (fr) 1990-03-21

Family

ID=6327064

Family Applications (2)

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 Before (1)

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

Country Status (6)

Country Link
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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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
EP3601648B1 (fr) * 2017-03-31 2020-07-29 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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DE723362C (de) * 1940-06-12 1942-08-03 Seyfert & Donner Fadenfuehrer fuer Strick- oder Wirkmaschinen
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Also Published As

Publication number Publication date
DE3866782D1 (de) 1992-01-23
WO1988008892A1 (fr) 1988-11-17
EP0293956A1 (fr) 1988-12-07
JPH02503447A (ja) 1990-10-18
ES2028251T3 (es) 1992-07-01
DE3715297A1 (de) 1988-11-24
ATE70318T1 (de) 1991-12-15
EP0293956B1 (fr) 1991-12-11

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