EP0635593B1 - Method and device for connecting the two edges of a tubular knitted product during its manufacture - Google Patents

Method and device for connecting the two edges of a tubular knitted product during its manufacture Download PDF

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Publication number
EP0635593B1
EP0635593B1 EP94830348A EP94830348A EP0635593B1 EP 0635593 B1 EP0635593 B1 EP 0635593B1 EP 94830348 A EP94830348 A EP 94830348A EP 94830348 A EP94830348 A EP 94830348A EP 0635593 B1 EP0635593 B1 EP 0635593B1
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EP
European Patent Office
Prior art keywords
stitches
needles
linking
article
cylinder
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
EP94830348A
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German (de)
French (fr)
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EP0635593A1 (en
Inventor
Alberto Frullini
Paolo Frullini
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Fabritex SRL
Sangiacomo SpA
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Fabritex SRL
Sangiacomo SpA
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Publication of EP0635593A1 publication Critical patent/EP0635593A1/en
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Publication of EP0635593B1 publication Critical patent/EP0635593B1/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/02—Loop-transfer points
    • 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
    • D04B15/18—Dials
    • 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
    • D04B35/04—Latch needles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/40—Circular knitting machines with independently-movable needles with provision for transfer of knitted goods from one machine to another

Definitions

  • the present invention relates to a method and a device for effecting the union of two edges of a knitted tubular manufactured product, such as for example the remeshing of the tips of the stockings, at the end of the knitting of the manufactured product.
  • each stocking must be turned over so that the seam to be performed on the toes is on the underside of the stocking. After which the point comes closed by removing the said edge to be thrown and sewing together the stitches of the last half-row from the top of the foot with those of the last half-row of the plant.
  • the Italian patent application Nr. FI920194 describes a method for effecting the union of the two front edges of a knitted tubular manufactured product, especially a stocking and comprising the phase of manufacturing a knitted tubular manufactured product, with a circular machine with a cylinder , starting at the edge or cuff and ending at tiptoe which remains open, the process of which also comprises the following operational phases: - lifting a predetermined number of needles from a first half-row with the respective adjacent meshes up to a predetermined level: by half-row being understood a plurality of adjacent meshes and which belong to an edge of the tip of the manufactured product; - raise a predetermined number of needles in a second half-row with the respective stitches, and bring them to the same level as those in the first half-row; - take the stitches from the first half-row, lower the corresponding needles and transfer them with a 180 ° turn around a diametrical horizontal axis of the needle cylinder, so that each stitch thus inverted engages the needle
  • a device for implementing said method which comprises: - cam means for the vertical movement of a number of predetermined needles of a first and of a second half-row of stitches of the tip of the manufactured product in production, which means are in the active condition when the knitting cams of the circular machine are in the inactive condition and vice versa; - Means for removing the stitches from said first half-row and turning them 180 ° around a horizontal diametral axis of the needle cylinder, with a pair of staples for each stitch and at least one corresponding latch, opening and closing respectively, each of which is slidably housed in a corresponding recess in a semi-circular sector: said sector being mounted rotating with angular amplitude of 180 ° in both directions around a horizontal diametrical axis of the needle cylinder, in position located above the machine plates; means for making said semi-circular sector integral with the cylinder to needles, with a radial shutter sliding between two positions, blocking and respectively unlocking the sector relative to
  • the above-mentioned process even if it makes it possible to produce a finished finished product of good quality, includes the necessity of leaving the knitting needles inserted, which support the stitches of the manufactured product during the remeshing phase, inside the loops which constitute the stitches, as well as the union line of the edges of the manufactured product results slightly dilated.
  • the stitching pitch of the aforementioned edges is equal to that of knitting, rather than inferior, as on the other hand it is necessary to obtain a tighter and elastic seam and thus to produce a product of better quality.
  • the device for carrying out this previously known process has a very complex construction, especially in relation to the large number of elements placed in correspondence with the textile head of the circular machine.
  • the circular machines for the basic knitting of the manufactured product must be suitably adapted, under the architectural profile, under the structural mechanical profile and finally under the functional profile, for the specific arrangement of the means adopted for carry out the above method of closing the point.
  • this represents a penalty due to the limitation of the degree of interchangeability of the device which, therefore, must be designed in relation to the specific knitting machine for which it is intended.
  • the main aim of the present invention is to eliminate the drawbacks which derive from traditional operational methodologies and to propose a method and an automatic device for joining two edges of a knitted tubular manufactured product which make it possible to obtain a finished manufactured product of superior quality and at the same time, to achieve a great functional simplification as regards the manufacture and handling of the device for remeshing and of the machine for knitting.
  • a stitch is heard in the retained position when it, engaged on a needle valve, is found at a level between the staple of the needle and the free end of the valve in a completely opened.
  • it is planned to insert the final part of the remeshing wire inside the manufactured product, after the execution of the closing nodes of the chain.
  • the remeshing wire can be the same used for knitting the manufactured product, with no continuity, like a different yarn, fed by a corresponding spool, separated from that of the knitting yarn.
  • means are provided for inserting the final part of the remeshing wire which results, connected to the manufactured product, inside the latter.
  • the advantages obtained thanks to the present invention essentially consist in the fact that it is possible to effect the closure of the tip of a knitted tubular manufactured product, on the same machine which produces them, thus obtaining a great reduction in the time and cost of manufacture; which are completely eliminated from certain phases of the traditional process of closing the tip of knitted tubular manufactured products, such as for example the formation of the throwing discard and the corresponding waste, the transfer of the manufactured products from the circular machine to the storage stores or to the machines sewing or remeshing, turning them over, sewing the point and successive straightening; that it is possible to automatically remesh the edges of the manufactured product outside the knitting station and place the remeshing means at a predetermined distance from the latter, while producing a single productive unit; that it is possible to obtain a high degree of accessibility to the means of the knitting station and to those of the remeshing station, as also to the means
  • FIG. 1A shows, schematically, in longitudinal section, a device in accordance with a first embodiment of the invention, in the starting position of the closing cycle of the tip of the tubular manufactured product
  • Fig. 1B represents the plan view of the means for transferring the manufactured product from the knitting statin to that of remeshing, in the device of FIG. 1A
  • Fig. 1C shows the detail of the cams and of the respective control means for producing the reversal of the semi-circular sector of the device of FIG.
  • Fig. 2A schematically represents the means of FIG. 1B, with the remeshing means in the waiting condition
  • Fig. 2B shows the means of FIG. 1B in the position for detaching the textile head from the machine, with the remeshing means in the standby condition
  • Fig. 2C shows the means of FIG. 1B in the position of remeshing the tip of the manufactured product, with the remeshing means in the active condition
  • Fig. 2D schematically represents the phase of FIG. 2A with the suction tube of the textile machine in the normal position, that is to say lowered
  • Fig. 2E represents the phase of FIG. 2B with the suction tube in the raised position
  • Fig. 2A schematically represents the means of FIG. 1B, with the remeshing means in the waiting condition
  • Fig. 2B shows the means of FIG. 1B in the position for detaching the textile head from the machine, with the
  • FIG. 3A shows the side view of a device as in FIG. 1A, according to an alternative embodiment
  • Fig. 3B represents the plan view of the oscillating semi-circular sector, of the relative support member, of the corresponding turning-over means and of the means for locking the housing of the plates fixed in space
  • Fig. 3C shows a plan view of the means for transferring the manufactured product from the knitting station to the remeshing station in the device of FIG. 3A
  • Fig. 3D represents the detail of the means of joining the plate housing with the machine, in the phase of the start of the respective movement
  • Fig. 3E shows the detail of the means of FIG. 3D and 3E in the initial phase of the respective movement, that is to say to return to the initial position
  • Fig. 3B represents the plan view of the oscillating semi-circular sector, of the relative support member, of the corresponding turning-over means and of the means for locking the housing of the plates fixed in space
  • Fig. 3C shows a plan view of the means for transferring
  • FIG. 4 schematically represents a partial longitudinal section of the needle cylinder of a machine with a device according to the invention, in the phase of turning over the oscillating sector for the transfer of the stitches of the first half-row onto the needles of the second half row;
  • Fig. 5 shows the means of FIG. 3C, partial longitudinal section, in a machine with a device according to the invention and with the means of FIG. 3C in the raised oscillating sector position of the textile head, with the respective control means and with the needle positioning means;
  • Fig. 6A shows, in partial longitudinal section, the station for re-molding the tip of the manufactured product, with the means of FIG. 3C in the remeshing phase;
  • Fig. 5 shows the means of FIG. 3C, partial longitudinal section, in a machine with a device according to the invention and with the means of FIG. 3C in the raised oscillating sector position of the textile head, with the respective control means and with the needle positioning means;
  • Fig. 6A shows, in partial longitudinal section, the station
  • FIG. 6B represents the detail of the remeshing phase of the tip of the manufactured product, according to an alternative embodiment
  • Fig. 6C shows the detail of a sewing machine with a sliding needle for carrying out the remeshing
  • Fig. 6D shows the plan view of the detail of FIG. 6C
  • Fig. 6E shows the front view of the needle bar, with the relative auxiliary members, of the sewing machine of FIG. 6C
  • Fig. 6F represents, in partial section, the detail of the remeshing needle, with the clamping slide of the respective staple
  • Fig. 7A shows the side view of a needle of the knitting cylinder of the circular machine
  • Fig. 7B represents the section along AA in FIG. 7A
  • Fig. 7C represents the section along XX of FIG.
  • Fig. 8A shows the plan view of a staple for picking up and turning over meshes, with the head oriented to the right;
  • Fig. 8B shows the side view of the staple of FIG. 8A;
  • Fig. 9A shows the plan view of the staple complementary to that of FIG. 8A, that is to say with the head oriented to the left;
  • Fig. 9B shows the side view of the staple of FIG. 9A;
  • Fig. 10A shows the plan view of the clamping bolt associated with the staple of FIG. 8A;
  • Fig. 10B shows the side view of the bolt of FIG. 10A;
  • Fig. 11A shows the plan view of the clamping bolt associated with the staple of FIG. 9A;
  • Fig. 11B shows the side view of the bolt of FIG. 11A;
  • FIG. 12A shows the plan view of the assembly of the two staples and the corresponding bolts in the open position
  • Fig. 12B represents the section along CC of FIG. 12A
  • Fig. 13A shows the plan view of the assembly of the two staples and the corresponding bolts in the clamping position
  • Fig. 13B represents the section following DD of FIG. 13A
  • Fig. 14 shows a needle of the first half-row in the initial phase of the closing cycle of the tip of the manufactured product
  • Fig. 15 shows the needle of FIG. 14 in the ascent phase, with the plates closed
  • Fig. 16 shows the needle of FIG. 14 in an intermediate phase of its ascent race, with the plates open
  • FIG. 17 shows the detail of a needle of the second half-row in the terminal phase of its first ascent
  • Fig. 18 shows the needle of FIG. 16, where it is visible one of the respective staples in the phase of approximation to the corresponding mesh
  • Fig. 19 shows the needle of FIG. 18, with the staple in the mesh attachment phase
  • FIG: 20 represents the needle of FIG. 18, with the staple in the mesh removal phase
  • Fig. 21 represents the needle of FIG. 18 in the lowered position
  • Fig. 22 shows the detail of a needle of the second half-row, or one of the respective staples is visible, in the interception phase of the corresponding stitch of the first half-row which has been transferred
  • Fig. 23 shows the needle of FIG.
  • FIG. 24 shows the needle of FIG. 23 in the ascent position to release the corresponding mesh from the first half-row of the staple
  • Fig. 25 shows the needle of FIG. 24 in the lowered position below the spout of the plates, with the corresponding meshes of the first and second half-rows in the retained position and with the respective open plate
  • Fig. 26 shows the needle of FIG. 25 in the ascent phase, with the stage closed
  • Fig. 27 shows the needle of FIG. 26 in another ascent phase, with the plates closed
  • Fig. 28 shows the needle of FIG. 27 in another ascent phase and with the respective open stage
  • Fig. 29 shows the needle of FIG.
  • FIG. 30 shows the needle of FIG. 29 during the final ascent phase to agree to the removal of the corresponding meshes by the staple
  • Fig. 31 shows the needle of FIG. 30 in the descent phase
  • Fig. 32 shows the needle of FIG. 31 in the final descent phase, with the corresponding meshes of the first and second half-rows which have been taken up by the staple
  • Fig. 33A shows the needle of FIG. 23 in the ascent phase, with the corresponding mesh of the first half-row in the retained position and with the mesh of the second half-row blocked by the corresponding staple, according to an alternative embodiment of the present device
  • Fig. 33B shows the needle of FIG.
  • FIG. 33A in the final descent phase, with the corresponding stitch of the second half-row which has been unloaded
  • Fig. 33C shows the needle of FIG. 33B during the final ascent phase, with the plates closed which block the corresponding mesh of the first half-row loaded on the rod
  • Fig. 33D represents the needle of FIG. 33C in the phase of another ascent, with the plates open and with the corresponding staple in the phase of approximation to the corresponding mesh of the first half-row
  • Fig. 33E represents the needle of FIG. 33D, with the staple in the approach phase
  • Fig. 33F represents the needle of FIG. 33E during the final ascent phase to allow the removal of the corresponding mesh from the first half-row by the respective staple
  • Fig. 33G represents the needle of FIG.
  • Fig. 33F in the descent phase
  • Fig. 33H represents the needle of FIG. 33G in the final descent phase, and the corresponding stitch of the first half row which has been taken up by the respective staples
  • Fig. 34A represents the detail of the phase of formation of the closing nodes of the chain, at the end of the remeshing of the tip of the manufactured product
  • Fig. 34B represents the detail of the sampling phase of the end part of the re-molding wire, by the means of insertion of the latter inside the tip of the manufactured product, before making the cut
  • Fig. 34C shows the detail of the phase of placement in the operational position of the cutting and movement means of said wire insertion means itself
  • Fig. 35 shows the detail in the phase of FIG. 34C, according to an alternative embodiment
  • Fig. 34A represents the detail of the phase of formation of the closing nodes of the chain, at the end of the remeshing of the tip of the manufactured product
  • Fig. 34B represents the detail of the sampling phase of the end part of the
  • FIG. 36 shows the detail of the phase of FIG. 34D, according to an alternative embodiment, after the phase of FIG. 35;
  • Fig. 37 shows the detail of the PRESA predisposition phase of the remeshing wire, and of the operational means correspondents, according to an alternative embodiment;
  • Fig. 38A shows the detail of the phase of positioning the means for cutting the molding wire and removing the terminal part of the wire, by means suitable for its insertion inside the manufactured product, after the phase of FIG. 37;
  • Fig. 38B shows the detail of the cutting phase of the remeshing wire and of inserting the terminal part of the latter inside the manufactured product, after the phase of FIG. 38;
  • Fig. 39A represents the phase of FIG. 38A, according to an alternative embodiment;
  • Fig. 39B represents the phase of FIG.
  • Fig. 40 schematically represents the phase of attachment of a portion of the manufactured product to facilitate the introduction of the means for attaching the remeshing wire and of inserting the latter inside the manufactured product;
  • Fig. 41A shows the perspective view of any tubular manufactured product with the tip open;
  • Fig. 41B schematically represents the manufactured product of FIG. 41A in the prefinal phase of closing the tip;
  • Fig. 41C schematically represents the manufactured product of FIG. 41A in the final phase of closing the point;
  • Fig. 41D shows the view in longitudinal section of FIG. 41C;
  • Fig. 42A shows the perspective view of a bottom with the point formed by two identical and adjacent edges (S, R), called "fish mouth”;
  • Fig. 40 schematically represents the phase of attachment of a portion of the manufactured product to facilitate the introduction of the means for attaching the remeshing wire and of inserting the latter inside the manufactured product;
  • Fig. 41A shows the perspective view of any tubular manufactured product with the tip open;
  • FIG. 42B schematically represents the bottom of FIG. 42A in the pre-final phase of closing the tip
  • Fig. 42C schematically represents the bottom of FIG. 42A in the final phase of closing the point
  • Fig. 42D represents the view in longitudinal section of FIG. 42C
  • 43 shows schematically the subdivision into two half-rows of a knitting cylinder with an even number of needles
  • Fig. 44 shows, schematically, the subdivision into two half-rows of a knitting cylinder of a knitting cylinder with an odd number of needles
  • Fig. 45 shows, schematically, another subdivision into two half-rows of a knitting cylinder
  • Fig. 46 shows the detail of the means for the insertion of the terminal part of the molding wire inside the manufactured product
  • Fig. 47 shows a machine according to the invention in the knitting position, with the plate near the needle cylinder
  • Fig. 48 shows the machine of FIG. 46 with the plate away from the needle cylinder.
  • the end of the transfer phase of the manufactured product from the knitting station (T) to that (R) of remeshing it is planned to position said means for taking off the meshes (8,80) at a useful level to allow movement by the corresponding control members, so as to place the meshes (8,80) in the desired position and to consent to their abandonment after remeshing.
  • a downward air suction by means of a corresponding tube (92) coaxial with the manufactured product, so as to agree to relax it during its remeshing.
  • a hook (14) and chain guide (10) to cooperate with the needle (9) the formation of the stitching points and of the chain closing nodes.
  • said cams (7) have a basically helical profile.
  • said sector (4) is provided with two rollers (41), which are mounted idly on corresponding horizontal shafts (42) on the opposite side with respect to the axis of symmetry (dd) of the sector (4), and they are intended to feel the active profile of said cams (7) to cause the sector (4) to overturn.
  • a motor shaft with vertical axis for simplification not shown in the accompanying drawings, which performs its own rotational movement of the main transmission of the textile machine, the upper end of which is provided with a toothed pinion which must engage with a toothed crown (66) which is integrally connected to the crown (5).
  • This allows the rotation of the crown (5) in the knitting station (T), in phase with the cylinder (1).
  • each staple (2) is provided with two heels (21), which are prominent on the opposite side and vertically offset, to allow the alternative translation within the respective grooves of the sector (4) thanks to a corresponding cam ( 201) in the knitting stations (T) and cams (58) and (59) in the remeshing station (R).
  • each bolt (20) is provided with two heels (22), protruding on the opposite side and vertically offset, to allow movement thereof in the direction of closing, respectively opening, of the corresponding staples (2) in the phase capture, respectively release, of the meshes (8,80) to be united.
  • the height and the width of said heels (21, 22) are chosen in relation to the active profile of the corresponding control cam.
  • the head of said staples (2) has a wedge-shaped profile, to facilitate the capture, respectively release, of the meshes (8,80).
  • said staples (2) have the point folded in correspondence of the head, laterally and internally in the respective sliding direction to allow insertion into corresponding longitudinal cavities of the needles (3.30) and thus allow the capture of the meshes (8,80) of the first and the second half-row (x, y).
  • the outer face of the point of each bolt (20) is contiguous, that is to say juxtaposed, with the inner face of the respective staple (2).
  • each bolt (20) is provided with a transverse appendage (27) capable of forming a guide element relative to the point of the corresponding staple (2) and delimiting, in cooperation with a corresponding recess (28) of the relative staple (2), a seat (29) for the corresponding meshes (8,80) in the closed position.
  • a transverse appendage (27) capable of forming a guide element relative to the point of the corresponding staple (2) and delimiting, in cooperation with a corresponding recess (28) of the relative staple (2), a seat (29) for the corresponding meshes (8,80) in the closed position.
  • the means (95) for cutting the remeshing wire (F) are arranged in proximity to the working zone of the remeshing needle (9), on the same side of the remeshing machine (130) with respect to to the remeshing line.
  • said cutting means (95) are arranged on the opposite side of the pruner (130) relative to the re-molding line.
  • means are provided for inserting the final end of the stitching wire (F) inside the manufactured product, after the formation of the closure knots of the stitching itself, with a needle (93) with slide (94) , placed in front of the closing nodes and able to take the said wire (F) and insert it fully into the manufactured product, with a translational movement, and here abandon it.
  • the thread (F) spontaneously comes out of the needle (93), by the effect of the retraction of the latter and prior opening of the slide.
  • a needle (98) with slide (99) is placed on the opposite side of the remeshing needle (9) with respect to said closure nodes.
  • the thread (F) is released spontaneously from the needle (98) by the effect of the retraction of the latter, prior tightening of the respective slide (99).
  • means are provided for carrying out the elastic tension of the mesh of the manufactured product during the remeshing phase, with a suction tube (92) placed below the remeshing means and connected to the vacuum cleaner of the machine which produces the manufactured product. .
  • the same tube (92) can be used to convey the finished manufactured products to the respective storage stores.
  • the axis (aa) of rotation of the sector (4) is passing through two diametrically opposite needles of the cylinder (1), as well as the stitches of the first half-row removed result in an even number to that of the needles (3.30) of the cylinder (1) minus two, divided by two, and result displaced on as many needles (30) of the second half-row.
  • the two stitches (80) of the two needles (30) which result at the ends of the second half-row and which have been excluded from the process of moving the meshes (8) of the first half-row, are also re-meshed.
  • the axis (aa) of rotation of the sector (4) is passing between two pairs of diametrically opposite needles (3,30) of the cylinder (1). In this way, the number of stitches displaced results in even half the total number of needles (3.30).
  • the axis (aa) of rotation of the sector (4) is passing in correspondence with a needle (30) of the second half-row and the middle line of the needles (3.30) placed at the ends of the respective half-rows.
  • the stitches to be transferred correspond to the total number of needles minus one and divided by two, and the number of needles (30) in the second half row is equal to the number of needles (3) in the first half row plus one.
  • the tray (37) it is planned to mount the yarn guide assembly (47,48) of the machine on a flange (43) linked to the column (45) of the plate (41) with a pawl (46) to activate / deactivate the junction.
  • the lifting of the wire guide assembly (47, 48) is determined so as to allow the action of the means of removal and transfer of meshes (8,80).
  • the cylinder (1) has just turned 180 ° relative to the sector (4) until the latter results in exact correspondence with the needles (30) of the second half-row.
  • the cams (31) control the lifting of the needles (30), with the plates closed, until the corresponding meshes (8,80), retained by the plates (6) do not result in a predetermined position relative to the rod of the respective needles (30), that is to say in a position suitable for consenting their successive removal by the same staples (2) which have operated the displacement.
  • the needles (30) come lifted up to bring the pair of meshes (8,80) up to the aforementioned staples (2) which, at this point, are advanced and are closed by the respective bolts (20), so as to capture the meshes ( 8.80).
  • the needles (30) come down, and the manufactured product results with the pairs of stitches (8,80) retained by the staples (2) and thus freed from the needles (3,30).
  • the crown (5) is raised, with the sector (4) and with the manufactured product retained by the staples (2), by means of the actuation of the cylinder (52). At this point, the suction tube (100) is raised.
  • the actuation of the cylinder (67) determines the rotation of the column (52) around the axis (bb) and, integrally with it, of the crown (5), since it is supported by the arm (51 ) rigidly linked to the same column (52).
  • the crown (5) is placed in correspondence with the remeshing station (R), and lowered to a useful level to allow the intervention of the cams (59) of movement of the staples (2) with the respective bolts (20) in the closed position.
  • the needle (9) is inserted into a pair of corresponding stitches (8.80) forming a remeshing stitch in a simple chain.
  • the needle (9) with the cooperation of the hook (14) and the chain guide (10), makes two or more knots of closure.
  • the wire (F) comes captured by the needle (93), which has the slide open, and after the closure of the slide, the needle (93) is advanced towards the inside of the manufactured product and at the end, the wire (F) just cut. In this way, the final end of the remeshing wire (F) is inserted inside the manufactured product, by means of another advancement of the needle (93).

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

Abstract

Device for joining two edges of a knitted tubular manufactured product, particularly the toe of a stocking, comprising: - cam means (31, 21) for controlling the raising and lowering respectively of a predetermined number of needles (3, 30) of a first and of a second half-row of stitches (8, 80); - means for picking up the stitches (8) of the said first-half row (x) and overturning them through 180 DEG about a diametral axis (a-a) of the cylinder (1) of the needles (3, 30); - cam means (7) for controlling the overturning in the two directions through 180 DEG of a semi-circular sector (4) about the said axis (a-a) of the cylinder (1); - means for controlling the transfer of the sector (4) from a knitting station (T) to a restitching station (R); - means for blocking the housing of the sinkers (11) of the machine in a fixed and predetermined angular position; - a sewing and restitching machine (130) for making the joining seam of the pairs of stitches (8, 80) in a restitching phase; - means (95, 96, 97) for the final cutting of the restitching thread (F) and for retaining the final end of the thread (F) supplied by a feed bobbin.

Description

La presente invention concerne un procédé et un dispositif pour effectuer l'union de deux bords d'un produit manufacturé tubulaire tricoté, comme par exemple le remaillage de la pointe des bas, au terme du tricotage du produit manufacturé.The present invention relates to a method and a device for effecting the union of two edges of a knitted tubular manufactured product, such as for example the remeshing of the tips of the stockings, at the end of the knitting of the manufactured product.

Il est également connu que les bas sont produits avec des machines circulaires à un ou deux cylindres, en commançant par le bord ou revers élastique et en terminant par le côté de la pointe du pied qui reste ouverte et qui doit être fermée par la suite au moyen de machines à coudre ou de remailleuses appropriées. Plus précisément, il est connu que, après la formation des rangées utiles de la pointe du bas quelques rangées sont effectuées pour réaliser un bord à jeter, appelé "défilage", généralement en côte fine et d'une hauteur d'environ un centimètre, pour eviter des démaillages pendant la couture et la fermeture. En fonction du type de machine utilisée, les chaussettes sont produites:

  • a) l'une à la suite de l'autre. Dans ce cas la derniére rangée du défilage de la pointe du pied est reliée à la première rangée du bord élastique de la chaussette suivante au moyen d'un fil résistant, lis et bien visible, laquelle est travaillée avec une alimentation différente de celle utilisée pour le bord élastique et laquelle est destinée à être enlevée manuellement pour séparer une chaussette de l'autre avant la couture de la pointe du pied;
  • b) détachés l'un de l'autre. Ce procédé est utilisé spécialement sur les machines circulaires à un seul cylindre ou à double cylindre, équipé d'un dispositif automatique de séparation des bas fabriqués.
It is also known that the stockings are produced with circular machines with one or two cylinders, starting with the elastic edge or cuff and ending with the side of the toe which remains open and which must be closed thereafter. using appropriate sewing machines or stitching machines. More precisely, it is known that, after the useful rows of the bottom tip have been formed, a few rows are made to make a throw edge, called "scrolling", generally in fine rib and with a height of about a centimeter, to avoid detangling during sewing and closing. Depending on the type of machine used, the socks are produced:
  • a) one after the other. In this case the last row of tiptoeing is connected to the first row of the elastic edge of the next sock by means of a resistant, clear and clearly visible thread, which is worked with a different feed than that used for the elastic edge and which is intended to be removed manually to separate one sock from the other before sewing the toe;
  • b) detached from each other. This process is used especially on circular machines with a single cylinder or with a double cylinder, equipped with an automatic device for the separation of manufactured stockings.

Ensuite, chaque bas doit être renversé pour obtenir que la couture à effectuer de la pointe du pied se trouve sur l'envers du bas. Après quoi la pointe viens fermée en enlevant ledit bord à jeter et en cousant ensemble les mailles de la dernière demirangée du dessus du pied avec celles de la derniére demi-rangée de la plante.Then, each stocking must be turned over so that the seam to be performed on the toes is on the underside of the stocking. After which the point comes closed by removing the said edge to be thrown and sewing together the stitches of the last half-row from the top of the foot with those of the last half-row of the plant.

Mais l'exécution de la couture de la pointe des bas en dehors de la machine qui les produits entraîne l'augmentation de leur temps et de leur coût de fabrication, principalement à cause des nombreuses opérations intermédiaires à effectuer entre la fin du tricotage et la couture de la pointe du pied, comme par exemple le prélèvement et le tranfert des bas vers des magasins de stockage respectifs et leur classement en fonction de la couleur et/ou de la taille. Tout cela nécessite, en effet d'employer un personel spécifique qualifié pour effectuer et superviser ces opérations et de disposer d'espaces suffisament grands pour l'installation des machines et pour le classement et le stockage des bas. Et, en plus de tout cela, il y a le fait que, en relation avec le nombre élevé de bas ainsi fabriqués la quantité de tissu qui se perd pour la fabrication et l'enlévement successif dudit bord à jeter, s'avère particulièrement élevée, et par conséquent le coût correspondant influe fortement et négativement sur le rendement économique des installations traditionnelles de fabrication des chaussettes.However, the sewing of the hosiery outside the machine which produces them increases their time and their manufacturing cost, mainly because of the numerous intermediate operations to be carried out between the end of knitting and the tiptoeing, such as picking up and transferring stockings to respective storage stores and their classification according to color and / or size. All this requires, in fact, to employ a specific qualified staff to carry out and supervise these operations and to have sufficiently large spaces for the installation of the machines and for the classification and storage of stockings. And, in addition to all this, there is the fact that, in relation to the high number of stockings thus produced, the quantity of fabric which is lost for the manufacture and the successive removal of said edge to be thrown, turns out to be particularly high. , and therefore the corresponding cost strongly influences and negatively on the economic performance of traditional sock manufacturing facilities.

La demande de brevet italien Nr. FI920194 decrit un procédé pour effectuer l'union des deux bords antérieurs d'un produit manufacturé tubulaire tricoté, spécialement un bas et comprenant la phase de fabriquer un produit manufacturé tubulaire tricoté, avec une machine circulaire à un cylindre, en commençant par le bord ou revers et en finissant à la pointe du pied qui reste ouverte, dont le procédé comporte, en outre, les phase opérationnelles suivantes: - soulever un prédéterminé nombre d'aiguilles d'une première demi-rangée avec les respectives mailles adjacentes jusqu'à un niveau prédéterminé: par demi-rangée étant entendu une pluralité de mailles adjacentes et qui appartiennent à un bord de la pointe du produit manufacturé; - soulever un nombre prédèterminé d'aiguilles d'une deuxième demi-rangée avec les mailles respectives, et les porter au même niveau de celles de la première demi-rangée; - prélever les mailles de la première demi-rangée, abaisser les aiguilles correspondantes et les tranférer avec un retournement de 180° autour d'un axe horizontal diamétral du cylindre à aiguilles, de manière que chaque maille ainsi renversée s'engage sur l'aiguille correspondante de la deuxième demi-rangée; - libérer les mailles de la première demi-rangée des respectifs moyens de transfert et disposer les paires de mailles ainsi superposées à un niveau utile pour leur remaillage; - tourner avec un movement intermittent le cylindre à aiguilles et insérer une aiguille de remaillage dans une paire de maille ainsi placées, en l'alimentant avec le fil utilisé pour le tricotage du produit manufacturé, sans solution de continuité, et ensuite l'extraire pour former une maille de remaillage à chaînette simple.The Italian patent application Nr. FI920194 describes a method for effecting the union of the two front edges of a knitted tubular manufactured product, especially a stocking and comprising the phase of manufacturing a knitted tubular manufactured product, with a circular machine with a cylinder , starting at the edge or cuff and ending at tiptoe which remains open, the process of which also comprises the following operational phases: - lifting a predetermined number of needles from a first half-row with the respective adjacent meshes up to a predetermined level: by half-row being understood a plurality of adjacent meshes and which belong to an edge of the tip of the manufactured product; - raise a predetermined number of needles in a second half-row with the respective stitches, and bring them to the same level as those in the first half-row; - take the stitches from the first half-row, lower the corresponding needles and transfer them with a 180 ° turn around a diametrical horizontal axis of the needle cylinder, so that each stitch thus inverted engages the needle second row correspondent; - free the stitches of the first half-row from the respective transfer means and arrange the pairs of stitches as well superimposed on a level useful for their remeshing; - turn the needle cylinder with an intermittent movement and insert a remeshing needle into a pair of stitches thus placed, feeding it with the thread used for knitting the manufactured product, with no solution of continuity, and then extract it to form a single chain remeshing stitch.

Le même document décrit un dispositif pour la mise en oeuvre dudit procédé, lequel comprend: - des moyens à came pour le mouvement vertical d'un nombre d'aiguilles prédéterminées d'une première et d'une deuxième demi-rangée de mailles de la pointe du produit manufacturé en fabrication, lesquels moyens sont dans la condition active quand les cames de tricotage de la machine circulaire sont dans la condition inactive et inversement; - des moyens pour prélèver les mailles de la dite première demi-rangée et les retourner de 180° autour d'un axe diamétral horizontal du cylindre à aiguilles, avec une paire d'agraffes pour chaque maille et au moins un pêne correspondant, d'ouverture et respectivement de fermeture, chacun desquels est logé coulissant dans un évidement correspondant d'un secteur semi-circulaire: ledit secteur étant monté tournant avec amplitude angulaire de 180° dans les deux directions autour d'un axe diamétral horizontal du cylindre à aiguilles, en position situé au-dessus des platines de la machine; des moyens pour rendre solidaire ledit secteur semi-circulaire au cylindre à aiguilles, avec un obturateur radial coulissant entre deux positions, de blocage et respectivement de déblocage du secteur par rapport au cylindre à aiguilles, mais dans un emplacement dans l'espace constant et prédéterminé; des moyens à fourche pour bloquer le boîtier des platines pendant la rotation horizontale dutit secteur semi-circulaire solidairement avec le cylindre à aiguilles, lesquels sont actionnés par des moyens correspondants à came solidaire au support du précité secteur semi-circulaire; - des moyens pour effectuer le remaillage des mailles jumelées et superposées chargées sur les aiguilles de la deuxième demi-rangée, avec une aiguille à bec de remaillage, avec un crochet pour desservir ladite aiguille, laquelle est disposée du côté opposé de l'aiguille par rapport aux dites mailles, et avec un galet ou coulisseau presse-tissu pour mantenir en position de remaillage les maille en phase de remaillage: ledit galet ou coulisseau étant disposé du même côté de l'aiguille de remaillage par rapport aux aiguilles à tricoter. Tous les précités moyens sont placés en correspondance du sommet et tout à côté du cylindre à aiguilles.The same document describes a device for implementing said method, which comprises: - cam means for the vertical movement of a number of predetermined needles of a first and of a second half-row of stitches of the tip of the manufactured product in production, which means are in the active condition when the knitting cams of the circular machine are in the inactive condition and vice versa; - Means for removing the stitches from said first half-row and turning them 180 ° around a horizontal diametral axis of the needle cylinder, with a pair of staples for each stitch and at least one corresponding latch, opening and closing respectively, each of which is slidably housed in a corresponding recess in a semi-circular sector: said sector being mounted rotating with angular amplitude of 180 ° in both directions around a horizontal diametrical axis of the needle cylinder, in position located above the machine plates; means for making said semi-circular sector integral with the cylinder to needles, with a radial shutter sliding between two positions, blocking and respectively unlocking the sector relative to the needle cylinder, but in a location in constant and predetermined space; fork means for locking the housing of the plates during the horizontal rotation of the semi-circular sector solidly with the needle cylinder, which are actuated by means corresponding to a cam integral with the support of the aforesaid semi-circular sector; - Means for remeshing the twin and superimposed stitches loaded on the needles of the second half-row, with a needle with remeshing beak, with a hook to serve said needle, which is disposed on the opposite side of the needle by with respect to said stitches, and with a roller or fabric press slide to maintain the stitch in the remeshing position the stitches in the remeshing phase: said roller or slide being disposed on the same side of the stitching needle relative to the knitting needles. All of the aforementioned means are placed in correspondence of the apex and very close to the needle cylinder.

Mais le procédé surmentioné, même s'il permet de réaliser un produit manufacturé fini de bonne qualité, comporte la neccessité de laisser insérées les aiguilles de tricotage, lesquelles supportent les mailles du produit manufacturé en phase de remaillage, à l'intérieur des boucles qui constituent les points de couture, ainsi que la ligne d'union des bords du produit manufacturé resulte légèrement dilatée. Le pas de couture des précités bords resulte egale à celui du tricotage, plutôt qu'inférieur, comme par contre il est neccessaire pour obtenir une couture plus serrée et élastique et ainsi réaliser un produit de meilleure qualité. En outre, le dispositif pour réaliser ce procédé dejà connu presente une construction très complexe, surtout en relation au grand nombre d'éléments placés en correspondance de la tête textile de la machine circulaire. Ce-ci comporte, surtout, la necessité d'adopter une procedure stricte d'integration et de coordination du dispositif avec la machine circulaire qui fabrique les produits manufacturés, comme aussi un niveau reduit de modularité, c'est-à-dire une forte reduction de la possibilité d'ajuter des éléments ultérieurs, aptes à l'amelioration de la qualité du produit manufacturé du point de vue du tricotage et/ou du remaillage finale et en outre, il comporte une forte limitation du degré d'accessibilité aux composants du dispositif de remaillage. Ce-ci à désavantage de la simplicité et du coût d'intervention pendant la phase de montage et/ou de manutention de la machine circulaire et/ou du même dispositif pour le remaillage de la pointe. En outre, les machines circulaires pour le tricotage de base du produit manufacturé doivent être opportunement adaptées, sous le profil architectural, sous le profil mécanique structural et enfin sous le profil fonctionnel, pour la disposition spécifique des moyens adoptés pour réaliser le susdit procédé de fermeture de la pointe. En vue des nombreuses differences constructives et fonctionnelles qui marquent les differentes machines circulaires à ce moment connues, ce-ci represente une pénalisation à cause de la limitation de degré de l'interchangeabilité du dispositif lequel, en conséquent, doit être dessiné en relation à la machine specifique de tricotage à laquelle est destiné.However, the above-mentioned process, even if it makes it possible to produce a finished finished product of good quality, includes the necessity of leaving the knitting needles inserted, which support the stitches of the manufactured product during the remeshing phase, inside the loops which constitute the stitches, as well as the union line of the edges of the manufactured product results slightly dilated. The stitching pitch of the aforementioned edges is equal to that of knitting, rather than inferior, as on the other hand it is necessary to obtain a tighter and elastic seam and thus to produce a product of better quality. In addition, the device for carrying out this previously known process has a very complex construction, especially in relation to the large number of elements placed in correspondence with the textile head of the circular machine. This includes, above all, the need to adopt a strict procedure of integration and coordination of the device with the circular machine which manufactures the manufactured products, as also a reduced level of modularity, that is to say a strong reduction in the possibility of adding later elements, capable of improving the quality of the manufactured product from the point of view of knitting and / or final remeshing, and furthermore, it greatly limits the degree of accessibility to the components of the remeshing device. This has the disadvantage of the simplicity and the cost of intervention during the assembly and / or handling phase of the circular machine and / or of the same device for remeshing the tip. In addition, the circular machines for the basic knitting of the manufactured product must be suitably adapted, under the architectural profile, under the structural mechanical profile and finally under the functional profile, for the specific arrangement of the means adopted for carry out the above method of closing the point. In view of the many constructive and functional differences which mark the various circular machines known at the time, this represents a penalty due to the limitation of the degree of interchangeability of the device which, therefore, must be designed in relation to the specific knitting machine for which it is intended.

Le but principale de la presente invention est celui d'éliminer les inconvénients qui derivent des méthodologies opérationnelles traditionnelles et de proposer un procédé et un dispositif automatique pour unir deux bords d'un produit manufacturé tubulaire tricoté qui permettent d'obtenir un produit manufacturé fini de qualité supérieure et au même temps, de réaliser une grande simplification functionnelles pour ce qu'il concerne la fabrication et à la manutention du dispositif pour le remaillage et de la machine pour le tricotage.The main aim of the present invention is to eliminate the drawbacks which derive from traditional operational methodologies and to propose a method and an automatic device for joining two edges of a knitted tubular manufactured product which make it possible to obtain a finished manufactured product of superior quality and at the same time, to achieve a great functional simplification as regards the manufacture and handling of the device for remeshing and of the machine for knitting.

Au résultat voulu on est parvenu conformément à l'invention, en adoptant un procédé opérationnel comprenant les phases initiales de fabrication d'un produit manufacturé tubulaire tricoté comme, une chaussette, en commençant par le bord ou revers élastique et en finissant du côté de la pointe du pied qui reste ouverte, avec une machine circulaire à un cylindre, et de disposer les mailles formées en dernier d'un premier demi-rangée sur les aiguilles de tricotage d'une deuxième demi-rangée de mailles, au moyens d'un retournement de 180° autour d'un axe diamétrale du cylindre à aiguilles, lequel est réalisé avec des correspondants moyens de tranfért des mailles de manière que les paires de mailles de la première et de la deuxième demi-rangée resultent en position de retenu sur les aiguilles de la deuxième demi-rangée, et ce procèdé, selon l'invention, comprend les suivantes autres phases opérationnelles:

  • abaisser les aiguilles de la deuxième demi-rangée, avec les platines ouvertes, de manière à porter les mailles de la première et de la deuxième demi-rangée à un niveau inférieur à celui du bec des platines de la machine;
  • soulever les aiguilles de la deuxième demi-rangée, avec les platines fermées, de manière à que les paires de mailles correspondantes de la première et de la deuxième demi-rangée resultent retenues par les platines dans une position prédéterminée par rapport à la tige des aiguilles respectives;
  • soulever encore les aiguilles de la deuxième demi-rangée, avec les platines ouvertes, jusqu'à porter toutes les paires de mailles correspondantes au niveau opérationnel des moyens de transfert de la première demi-rangée, de manière que les mailles resultent retenues par ces-ci;
  • abaisser les aiguilles de la deuxième demi-rangée, de manière que le produit manufacturé resulte avec les mailles du premier et du deuxième demi-rangée prélèvées par lesdits moyens de transfert, c'est-à-dire rendu libre par les aiguilles de tricotage;
  • transférer le produit manufacturé, avec les mailles ainsi retenues, de manière à le placer à une distance prédéterminée du cylindre de tricotage;
  • disposer les mailles ainsi tranférées angulairement équidistantes, avec distance angulaire variable, c'est-à-dire choisi, en relation à la finesse volue du remaillage;
  • remailler les paires de mailles correspondantes ainsi disposées, avec une aiguille à remailler, en formand une chaînette et, au terme du remaillage, réaliser deux ou plusieur noeuds de fermeture de la chaînette;
  • couper le fil de remaillage;
  • libérer les paires de mailles de la première et de la deuxième demi-rangée ainsi unies, pour permettre l'abattage du produit manufacturé dans la position droite, c'est-à-dire definitive.
The desired result was obtained in accordance with the invention, by adopting an operational process comprising the initial stages of manufacturing a knitted tubular manufactured product such as a sock, starting with the elastic edge or lapel and ending on the side of the tiptoe which remains open, with a circular machine with a cylinder, and to arrange the meshes formed last of a first half-row on the knitting needles of a second half row of stitches, by means of a 180 ° turn around a diametrical axis of the needle cylinder, which is produced with corresponding medium transfer stitches so that the pairs of stitches of the first and second half-row result in the retained position on the needles of the second half-row, and this process, according to the invention, includes the following other operational phases:
  • lower the needles of the second half-row, with the stages open, so as to bring the stitches of the first and of the second half-row to a level lower than that of the spout of the stages of the machine;
  • raise the needles of the second half-row, with the plates closed, so that the corresponding pairs of stitches of the first and of the second half-row result retained by the plates in a predetermined position relative to the rod of the needles respective;
  • still raise the needles of the second half-row, with the plates open, until all the corresponding pairs of stitches are brought to the operational level of the transfer means of the first half-row, so that the stitches result retained by these this;
  • lower the needles of the second half-row, so that the manufactured product results with the stitches of the first and second half-row taken by said means of transfer, that is to say made free by knitting needles;
  • transfer the manufactured product, with the meshes thus retained, so as to place it at a predetermined distance from the knitting cylinder;
  • arrange the meshes thus angularly equidistant, with variable angular distance, that is to say chosen, in relation to the fineness of the remeshing;
  • remesh the pairs of corresponding stitches thus arranged, with a remesing needle, by formand a chain and, at the end of the remeshing, carry out two or more knots of closure of the chain;
  • cut the remeshing wire;
  • free the mesh pairs of the first and second half-rows thus united, to allow the felling of the manufactured product in the straight, that is to say final, position.

Il est utile rappeler qu'une maille s'entend en position de retenu quand elle, engagée sur une aiguille à clapet, se trove à un niveau compris entre l'agraffe de l'aiguille et l'extremité libre du clapet dans une position complètement ouverte. Avantageusement, conformément à l'invention, il est prevu d'inserer la partie finale du fil de remaillage à l'intérieur du produit manufacturé, après l'exécution des noeuds de fermeture de la chaînette.
En outre, le fil de remaillage peut être le même utilisé pour le tricotage du produit manufacturé, sans solution de continuité, comme ainsi un fil different, alimenté par un bobine correspondante, separée de celle du filé de tricotage.It is useful to remember that a stitch is heard in the retained position when it, engaged on a needle valve, is found at a level between the staple of the needle and the free end of the valve in a completely opened. Advantageously, in accordance with the invention, it is planned to insert the final part of the remeshing wire inside the manufactured product, after the execution of the closing nodes of the chain.
In addition, the remeshing wire can be the same used for knitting the manufactured product, with no continuity, like a different yarn, fed by a corresponding spool, separated from that of the knitting yarn.

Et pour ce qui concerne le dispositf pour la mise en oeuvre dudit procedé, celui-ci comprend:

  • des moyens pour la commande de l'ascension et respectivement de la descente d'un nombre prédétermniés d'aiguilles d'une première et d'une deuxième demi-rangée de mailles, lesquelles sont dans la condition active lorque les cames de tricotage sont dans la condition inactive et inversement;
  • des moyens pour prélever les mailles de la dite première demi-rangée et les retourner de 180° autour d'un axe diamétral du cylindre à aiguilles et en outre pour prélèver les paires de mailles correspondantes des aiguilles de la deuxième demi-rangée, avec une paire d'agraffes pour chaque maille, respectivement paire de maille correspondantes, et au-moins un pêne d'ouverture et respectivement de serrage, lesquels sont logés, coulissants, dans des rainures correspondantes d'un secteur semi-circulaire: ledit secteur étant monté tournant avec une amplitutide angulaire de 180° dans les deux directions autour d'un axe diamétral du cylindre à aiguilles, au-dessus des platines de la machine qui fabrique le produit manufacturé, et supporté par des organes aptes à consentir le transfert de la station de tricotage à une station de remaillage de la pointe du produit manufacturé;
  • des moyens à came, placés en correspondance de la station de tricotage, pour le mouvement desdites agraffes et respectifs pênes dans les rainures correspondantes du secteur oscillant;
  • des moyens à came pour commander le retournement de 180° dans les deux directions du précité secteur semi-circulaire autour d'un axe diamétral du cylindre à aiguilles;
  • des moyens à came pour bloquer le boîtier des platines de la machine circulaire dans une position angulaire prédéterminée et constante;
  • un cylindre actuateur pour commander le transfert de l'organe de support dudit secteur semi-circulaire de la station de tricotage à celle de remaillage de la pointe du produit manufacturé;
  • des moyens à came, en correspondance de la station de remaillage, pour commander le mouvement desdites agraffes et respectifs pênes dans la phase de prédisposition des mailles au remaillage et dans la phase d'expulsion du produit manufacturé fini;
  • une machine à coudre et remailler pour réaliser la couture-remaillage de l'union des paires de mailles correspondantes et pour la réalisation des noeuds de fermeture de la dite couture-remaillage;
  • des moyens pour retenir le bout du fil de remaillage après sa coupe.
And as regards the device for the implementation of said process, it comprises:
  • means for controlling the ascent and respectively the descent of a predetermined number of needles of a first and a second half-row of stitches, which are in the active condition when the knitting cams are in the inactive condition and vice versa;
  • means for removing the stitches from said first half row and turning them 180 ° around a diametrical axis of the needle cylinder and in addition for removing the corresponding pairs of stitches from the needles of the second half row, with a pair of staples for each mesh, respectively pair of corresponding meshes, and at least one opening and respectively clamping bolt, which are housed, sliding, in corresponding grooves of a semi-circular sector: said sector being mounted rotating with an angular amplitutide of 180 ° in both directions around a diametrical axis of the needle cylinder, above the plates of the machine which manufactures the manufactured product, and supported by members able to consent to the transfer of the station knitting at a remeshing station of the tip of the manufactured product;
  • cam means, placed in correspondence of the knitting station, for the movement of said staples and respective bolts in the corresponding grooves of the oscillating sector;
  • cam means for controlling the 180 ° reversal in the two directions of the aforesaid semi-circular sector around a diametrical axis of the needle cylinder;
  • cam means for locking the housing of the plates of the circular machine in a predetermined and constant angular position;
  • an actuator cylinder for controlling the transfer of the support member from said semi-circular sector from the knitting station to that for remeshing the tip of the manufactured product;
  • cam means, in correspondence with the remeshing station, for controlling the movement of said staples and respective bolts in the phase of predisposition of the meshes for the remeshing and in the phase of expulsion of the finished manufactured product;
  • a sewing and remeshing machine for sewing-remeshing the union of the corresponding pairs of stitches and for making the closing nodes of said sewing-remeshing;
  • means for retaining the end of the remeshing wire after it has been cut.

Avantageusement, conformément à l'invention, des moyens sont prevus pour inserer la partie finale du fil de remaillage qui résulte reliée au produit manufacturé, à l'intérieur de celui-ci.
Les avantages obtenus grâce à la presente invention consistent essentiellement en ce qu'il est possible d'effectuer la fermeture de la pointe d'un produit manufacturé tubulaire tricoté, sur la même machine qui les produit, obtenant ainsi une forte réduction du temps et du coût de fabrication; qui sont complètement éliminées certaines phases du procédé traditionnel de fermeture de la pointe des produits manufacturés tubulaires tricotés, comme par exemple la formation du défilage à jeter et du déchet correspondant, le tranfert des produits manufacturés de la machine circulaire aux magasins de stockage ou aux machines à coudre ou de remaillage, leur retournement, la couture de la pointe et le redressement successif; qu'il est possible effectuer en automatique le remaillage des bords du produit manufacturé en dehors de la station de tricotage et placer les moyens de remaillage à une distance prédéterminée de cette dernière, tout en réalisant une seule unité productive; qu'il est possible obtenir un degré élevé d'accessibilité aux moyens de la station de tricotage et à ces de la station de remaillage, comme aussi aux moyens pour le transfert du produit manufacturé d'une à l'autre desdites stations, ce qui est très avantageux soit dans la phase de mise en oeuvre de l'unité productive que dans celles de manutention et de réglage des differents moyens opérationnels; qu'il est possible, pendant la phase de remaillage d'un produit manufacturé, réaliser au même temps, le tricotage du produit manufacturé successif, ce qui comporte une reduction des temps de pause des machines et une augmentation de la capacité productive des centres de travail, en termes de produit manufacturé fini; qu'il est possible d'effectuer le remaillage précité avec le même fil utilisé pour exécuter ledit tricotage, sans solution de continuité, de façon à eviter le cycle de "mise en train" du remaillage, c'est-à-dire la formation du point initial du remaillage même, et la presence du bout finale du fil de remaillage; qu'il est possible d'effectuer ledit remaillage avec n'importe quel point apte pour confectionner des articles de bonneterie, comme par exemple le point "à chaînette simple", lequel possède un comportement élastique optimal et permet l'utilisation de la plus grande partie des filés du commerce; qu'il est possible de réaliser la fermeture de la pointe d'un bas suivant différentes formes, comme par exemple celle appelée "en bouche de poisson" et celle appelée "en bouche de requin", en plus de celles de type traditionnel; qu'il est possible d'obtenir ledit remaillage du côté du dessus ou du côté de la plante d'un bas en réalisant simplement, avant la fermeture de la pointe, une poche de tissu d'un côté ou de l'autre du produit manufacturé par rapport au talon; qu'au terme du remaillage de la pointe, le produit manufacturé se trouve dans la position à l'endroit, c'est-à-dire définitive; que le produit fini possède une qualité élevée du point de vue esthétique et fonctionnel; en ce que la ligne de fermeture est tricoté et unit les deux bords de la pointe sans aucune augmentation d'épaisseur; qu'un dispositif selon l'invention est de fiabilité élevée même après une longue période d'utilisation; qu'une machine circulaire traditionnelle peut être équipée sans avoir à modifier radicalement sa structure fonctionnelle et constructive de base.Advantageously, in accordance with the invention, means are provided for inserting the final part of the remeshing wire which results, connected to the manufactured product, inside the latter.
The advantages obtained thanks to the present invention essentially consist in the fact that it is possible to effect the closure of the tip of a knitted tubular manufactured product, on the same machine which produces them, thus obtaining a great reduction in the time and cost of manufacture; which are completely eliminated from certain phases of the traditional process of closing the tip of knitted tubular manufactured products, such as for example the formation of the throwing discard and the corresponding waste, the transfer of the manufactured products from the circular machine to the storage stores or to the machines sewing or remeshing, turning them over, sewing the point and successive straightening; that it is possible to automatically remesh the edges of the manufactured product outside the knitting station and place the remeshing means at a predetermined distance from the latter, while producing a single productive unit; that it is possible to obtain a high degree of accessibility to the means of the knitting station and to those of the remeshing station, as also to the means for the transfer of the manufactured product from one to the other of said stations, which is very advantageous both in the implementation phase of the production unit and in that of handling and adjusting the various operational means; that it is possible, during the remeshing phase of a manufactured product, to carry out at the same time, knitting of the successive manufactured product, which involves a reduction in the machine pause times and an increase in the productive capacity of work centers, in terms of finished manufactured product; that it is possible to carry out the aforementioned remeshing with the same yarn used to carry out said knitting, without any solution of continuity, so as to avoid the cycle of "starting up" of the remeshing, that is to say the formation from the initial point of the remeshing itself, and the presence of the final end of the remeshing wire; that it is possible to carry out said remeshing with any point suitable for making hosiery items, such as for example the "simple chain" stitch, which has optimal elastic behavior and allows the use of the largest part of the trade yarns; it is possible to achieve the closure of the tip of a stocking in different forms, such as that called "fish mouth" and that called "shark mouth", in addition to those of the traditional type; that it is possible to obtain said remeshing on the top side or on the plant side of a stocking by simply carrying out, before the tip is closed, a pocket of fabric on one side or the other of the product manufactured in relation to the heel; that at the end of the remeshing of the point, the manufactured product is in the position at the place, that is to say final; that the finished product has a high quality from an aesthetic and functional point of view; in that the closure line is knitted and unites the two edges of the point without any increase in thickness; that a device according to the invention is reliable high even after a long period of use; that a traditional circular machine can be equipped without having to radically modify its basic functional and constructive structure.

Ces avantages et caractéristiques de l'invention ainsi que d'autres seront plus et mieux compris de chaque homme du métier à la lumière de la description qui va suivre et à l'aide des dessins annexés, donnés à titre d'exemplification pratique de l'invention, mais à ne pas considérer dans le sens limitatif, dessins sur lesquels la Fig. 1A représente, schématiquement, en coupe longitudinale, un dispositif conformément à une première forme de réalisation de l'invention, dans la position de commencement du cycle de fermeture de la pointe du produit manufacturé tubulaire; la Fig. 1B représente la vue en plan des moyens de transfert du produit manufacturé de la statin de tricotage à celle de remaillage, dans le dispositif de la Fig. 1A; la Fig. 1C représente le détail des cames et des respectifs moyens de commande pour réaliser le retournement du secteur semi-circulaire du dispositif de la Fig. 1A; la Fig. 1D représente les moyens de la Fig. 1C en vue latérale; la Fig. 2A représente schématiquement les moyens de la Fig. 1B, avec les moyens de remaillage dans la condition d'attente; la Fig. 2B représente les moyens de la Fig. 1B dans la position de détachement de la tête textile de la machine, avec les moyens de remaillage dans la condition d'attente; la Fig. 2C représente les moyens de la Fig. 1B dans la position de remaillage de la pointe du produit manufacturé, avec les moyens de remaillage dans la condition active; la Fig. 2D représente, schématiquement, la phase de la Fig. 2A avec le tube d'aspiration de la machine textile en position normale, c'est-à-dire abaissée; la Fig. 2E représente la phase de la Fig. 2B avec le tube d'aspiration en position surélevée; la Fig. 3A représente la vue latérale d'un dispositf comme dans la Fig. 1A, selon un forme alternative de réalisation; la Fig. 3B représente la vue en plan du secteur semi-circulaire oscillant, du relatif organe de support, des correspondents moyens de retournement et des moyes pour bloquer le boîtier des platines fix dans l'éspace; la Fig. 3C représente la vue un plan des moyens de transfert du produit manufacturé de la station de tricotage à celle de remaillage dans le dispositif de la Fig. 3A; la Fig. 3D représente le détail des moyens de jonction du boîtier des platines avec la machine, dans la phase de commencement du mouvement respectif; la Fig. 3E représente le détail des moyens de la Fig. 3D et 3E dans la phase initiale du mouvement respectif, c'est-à-dire de retour à la position initiale; la Fig. 4 représente, schématiquement, une section longitudinale partielle du cylindre à aiguilles d'un machine avec un dispositif selon l'invention, dans la phase de retournement du secteur oscillant pour le transfert des mailles de la premiér demi-rangée sur les aiguilles de la deuxième demi-rangée; la Fig. 5 représente les moyens de la Fig. 3C, en partiale section longitudinale, dans une machine avec un dispositif selon l'invention et avec les moyens de la Fig. 3C dans la position de secteur oscillant soulevé de la tête textile, avec les moyens respectifs de commande et avec les moyens de positionnement des aiguilles; la Fig. 6A représente, en section partielle longitudinale, la station de remaillage de la pointe du produit manufacturé, avec les moyens du Fig. 3C dans la phase de remaillage; la Fig. 6B représente le détail de la phase de remaillage de la pointe du produit manufacturé, selon une forme alternative de réalisation; la Fig. 6C représente le détail d'une machine à coudre avec aiguille à coulisse pour l'exécution du remaillage; la Fig. 6D représente la vue en plan du détail de la Fig. 6C; la Fig. 6E représente la vue de front de la barre d'aiguille, avec les organes auxiliairs relatifs, de la machine à coudre de la Fig. 6C; la Fig. 6F représente, en coupe partiale, le détail de l'aiguille de remaillage, avec la glissière de serrage de l'agraffe respective; la Fig. 7A représente la vue latérale d'une aiguille du cylindre de tricotage de la machine circulaire; la Fig. 7B représente la section suivant A-A de la Fig. 7A; la Fig. 7C représente la section suivant X-X de la Fig. 7A; la Fig. 8A représente la vue en plan d'une agraffe pour le prélèvement et le retournement des mailles, avec la tête orientée vers la droite; la Fig. 8B représente la vue latérale de l'agraffe de la Fig. 8A; la Fig. 9A représente la vue en plan de l'agraffe complémentaire à celle de la Fig. 8A, c'est-à-dire avec la tête orientée vers la gauche; la Fig. 9B représente la vue latérale de l'agraffe de la Fig. 9A; la Fig. 10A représente la vue en plan du pêne de serrage associé à l'agraffe de la Fig. 8A; la Fig. 10B représente la vue latérale du pêne de la Fig. 10A; la Fig. 11A représente la vue en plan du pêne de serrage associé à l'agraffe de la Fig. 9A; la Fig. 11B représente la vue latérale du pêne de la Fig. 11A; la Fig. 12A représente la vue en plan de l'ensemble des deux agraffes et des pênes correspondants dans la position d'ouverture; la Fig. 12B représente la section suivant C-C de la Fig. 12A; la Fig. 13A représente le vue en plan de l'ensemble des deux agraffes et des pênes correspondants dans la position de serrage; la Fig. 13B représente la section suivant D-D de la Fig. 13A; la Fig. 14 représente une aiguille de la première demi-rangée dans la phase initiale du cycle de fermeture de la pointe du produit manufacturé; la Fig. 15 représente l'aiguille de la Fig. 14 dans la phase d'ascension, avec les platines fermées; la Fig. 16 représente l'aiguille de la Fig. 14 dans une phase intérmediaire de sa course d'ascension, avec les platines ouvertes; la Fig. 17 représente le détail d'une aiguille du deuxième demi-rangée dans la phase terminale de sa première ascension; la Fig. 18 représente l'aiguille de la Fig. 16, ou il est visible une des agraffes respectives dans la phase de rapprochement à la maille correspondente; la Fig. 19 représente l'aiguille de la Fig. 18, avec l'agraffe dans la phase d'accrochage de la maille; la Fig: 20 représente l'aiguille de la Fig. 18, avec l'agraffe en phase de prélèvement de la maille; la Fig. 21 représente l'aiguille de la Fig. 18 dans la position abbaissée; la Fig. 22 représente le détail d'une aiguille de la deuxième demi-rangée, ou est visible une des respectives agraffes, dans la phase d'interception de la maille correspondante de la première demi-rangée qui à été transférée; la Fig. 23 représente l'aiguille de la Fig. 22, avec l'agraffe dans la phase d'appui de la maille correspondante sur le col de l'aiguille avant l'ouverture du pêne respectif; la Fig. 24 représente l'aiguille de la Fig. 23 dans la position d'ascension pour libérer la maille correspondante de la première demi-rangée de l'agraffe; la Fig. 25 représente l'aiguille de la Fig. 24 dans la position abaissée au-dessous du bec des platines, avec les mailles correspondantes de la première et de la deuxième demi-rangée en position de retenu et avec la respective platine ouverte; la Fig. 26 représente l'aiguille de la Fig. 25 dans la phase d'ascension, avec la platine fermée; la Fig. 27 représente l'aiguille de la Fig. 26 dans une autre phase d'ascension, avec les platines fermées; la Fig. 28 représente l'aiguille de la Fig. 27 dans une autre phase d'ascension et avec la respective platine ouverte; la Fig. 29 représente l'aiguille de la Fig. 28 avec l'agraffe correspondante dans la phase de rapprochement aux mailles chargées sur la tige de l'aiguille; la Fig. 30 représente l'aiguille de la Fig. 29 pendant la phase finale d'ascension pour consentir le prélèvement des correspondantes mailles par l'agraffe; la Fig. 31 représente l'aiguille de la Fig. 30 en phase de déscente; la Fig. 32 représente l'aiguille de la Fig. 31 dans la phase terminale de déscente, avec les mailles correspondantes de la première et de la deuxième demi-rangée qui ont été prélèvées par l'agraffe; la Fig. 33A représente l'aiguille de la Fig. 23 dans la phase d'ascension, avec la maille correspondante de la première demi-rangée dans la position de retenu et avec la maille du deuxième demi-rangée bloquée par l'agraffe correspondante, selon une forme alternative de réalisation du present dispositif; la Fig. 33B représente l'aiguille de la Fig. 33A dans la phase finale de déscente, avec la maille correspondante de la deuxième demi-rangée qui à été déchargée; la Fig. 33C représente l'aiguille de la Fig. 33B pendant la phase finale d'ascension, avec les platines fermées qui bloquent la maille correspondante de la première demi-rangée chargée sur la tige; la Fig. 33D représente l'aiguille de la Fig. 33C dans la phase d'une autre ascension, avec les platines ouvertes et avec l'agraffe correspondante dans la phase de rapprochement à la maille correspondante de la première demi-rangée; la Fig. 33E représente l'aiguille de la Fig. 33D, avec l'agraffe dans la phase d'approchement; la Fig. 33F représente l'aiguille de la Fig. 33E pendant la phase finale d'ascension pour permettre le prélèvement de la maille correspondante de la première demi-rangée par la respective agraffe ; la Fig. 33G représente l'aiguille de la Fig. 33F dans la phase de déscente; la Fig. 33H représente l'aiguille de la Fig. 33G dans la phase finale de déscente, et la maille correspondante de la premièrer demi-rangée qui a été prélèvée par les respectives agraffes; la Fig. 34A représente le détail de la phase de formation des noeuds de fermeture de la chaînette, au terme du remaillage de la pointe du produit manufacturé; la Fig. 34B représente le détail de la phase de prélèvement de la partie terminale du fil de remaillage, par les moyens d'insertion de ce dernier à l'intérieur de la pointe du produit manufacturé, avant d'effectuer la coupe; la Fig. 34C représente le détail de la phase de placement dans la position opérationnelle des moyens de coupe et de mouvement desdits moyens d'insertion du fil même; la Fig. 35 représente le détail dans la phase de la Fig. 34C, selon une forme alternative de réalisation; la Fig. 36 représente le détail de la phase de la Fig. 34D, selon une forme alternative de réalisation, après la phase de la Fig. 35; la Fig. 37 représente le détail de la phase de predisposition de la PRESA du fil de remaillage, et des correspondants moyens opérationnels, selon une forme alternative de réalisation; la Fig. 38A représente le détail de la phase de positionnement des moyens pour la coupe du fil de remaillage et de prélèvement de la partie terminale du fil, par des moyens aptes à son insertion à l'intérieur du produit manufacturé, après la phase de la Fig. 37; la Fig. 38B représente le détail de la phase de coupe du fil de remaillage et d'insertion de la partie terminale de ce dernier à l'intérieur du produit manufacturé, après la phase de la Fig. 38; la Fig. 39A représente la phase de la Fig. 38A, selon une forme alternative de réalisation; la Fig. 39B représente la phase de la Fig. 38B, selon une forme alternative de réalisation, après la phase de la Fig. 39A; la Fig. 40 représente schématiquement la phase d'accrochage d'un portion du produit manufacturé pour faciliter l'introduction des moyens d'accrochage du fil de remaillage et d'insertion de ce dernier à l'intérieur du produit manufacturé; la Fig. 41A représente la vue perspective d'un quelconque produit manufacturé tubulaire avec la pointe ouverte; la Fig. 41B représente schématiquement le produit manufacturé de la Fig. 41A dans la phase préfinale de fermeture de la pointe; la Fig. 41C représente schématiquement le produit manufacturé de la Fig. 41A dans la phase finale de fermeture de la pointe; la Fig. 41D représente la vue en coupe longitudinale de la Fig. 41C; la Fig. 42A représente la vue en perspective d'un bas avec la pointe formée par deux bords identiques et adjacents (S,R), dite "en bouche de poisson"; la Fig. 42B représente schématiquement le bas de la Fig. 42A dans la phase préfinale de fermeture de la pointe; la Fig. 42C représente schématiquement le bas de la Fig. 42A dans la phase finale de fermeture de la pointe; la Fig. 42D représente le vue en coupe longitudinale de la Fig. 42C; 43 représente, schématiquement, la subdivision en deux demi-rangées d'un cylindre de tricotage avec un nombre pair d'aiguilles; la Fig. 44 représente, schématiquement, la subdivision en deux demi-rangées d'un cylindre de tricotage d'un cylindre de tricotage avec un nombre impair d'aiguilles; la Fig. 45 représente, schématiquement, un autre subdivision en deux demi-rangées d'un cylindre de tricotage; la Fig. 46 représente le détail des moyens pour l'insertion de la partie terminale du fil de remaillage à l'intérieur du produit manufacturé; la Fig. 47 représente une machine selon l'invention dans la position de tricotage, avec le plateau près du cylindre à aiguilles; la Fig. 48 représente la machine de la Fig. 46 avec le plateau eloigné du cylindre à aiguilles.These advantages and characteristics of the invention as well as others will be more and better understood by each person skilled in the art in the light of the description which follows and with the aid of the appended drawings, given by way of practical example of the invention. invention, but not to be considered in the limiting sense, drawings in which FIG. 1A shows, schematically, in longitudinal section, a device in accordance with a first embodiment of the invention, in the starting position of the closing cycle of the tip of the tubular manufactured product; Fig. 1B represents the plan view of the means for transferring the manufactured product from the knitting statin to that of remeshing, in the device of FIG. 1A; Fig. 1C shows the detail of the cams and of the respective control means for producing the reversal of the semi-circular sector of the device of FIG. 1A; Fig. 1D represents the means of FIG. 1C in side view; Fig. 2A schematically represents the means of FIG. 1B, with the remeshing means in the waiting condition; Fig. 2B shows the means of FIG. 1B in the position for detaching the textile head from the machine, with the remeshing means in the standby condition; Fig. 2C shows the means of FIG. 1B in the position of remeshing the tip of the manufactured product, with the remeshing means in the active condition; Fig. 2D schematically represents the phase of FIG. 2A with the suction tube of the textile machine in the normal position, that is to say lowered; Fig. 2E represents the phase of FIG. 2B with the suction tube in the raised position; Fig. 3A shows the side view of a device as in FIG. 1A, according to an alternative embodiment; Fig. 3B represents the plan view of the oscillating semi-circular sector, of the relative support member, of the corresponding turning-over means and of the means for locking the housing of the plates fixed in space; Fig. 3C shows a plan view of the means for transferring the manufactured product from the knitting station to the remeshing station in the device of FIG. 3A; Fig. 3D represents the detail of the means of joining the plate housing with the machine, in the phase of the start of the respective movement; Fig. 3E shows the detail of the means of FIG. 3D and 3E in the initial phase of the respective movement, that is to say to return to the initial position; Fig. 4 schematically represents a partial longitudinal section of the needle cylinder of a machine with a device according to the invention, in the phase of turning over the oscillating sector for the transfer of the stitches of the first half-row onto the needles of the second half row; Fig. 5 shows the means of FIG. 3C, partial longitudinal section, in a machine with a device according to the invention and with the means of FIG. 3C in the raised oscillating sector position of the textile head, with the respective control means and with the needle positioning means; Fig. 6A shows, in partial longitudinal section, the station for re-molding the tip of the manufactured product, with the means of FIG. 3C in the remeshing phase; Fig. 6B represents the detail of the remeshing phase of the tip of the manufactured product, according to an alternative embodiment; Fig. 6C shows the detail of a sewing machine with a sliding needle for carrying out the remeshing; Fig. 6D shows the plan view of the detail of FIG. 6C; Fig. 6E shows the front view of the needle bar, with the relative auxiliary members, of the sewing machine of FIG. 6C; Fig. 6F represents, in partial section, the detail of the remeshing needle, with the clamping slide of the respective staple; Fig. 7A shows the side view of a needle of the knitting cylinder of the circular machine; Fig. 7B represents the section along AA in FIG. 7A; Fig. 7C represents the section along XX of FIG. 7A; Fig. 8A shows the plan view of a staple for picking up and turning over meshes, with the head oriented to the right; Fig. 8B shows the side view of the staple of FIG. 8A; Fig. 9A shows the plan view of the staple complementary to that of FIG. 8A, that is to say with the head oriented to the left; Fig. 9B shows the side view of the staple of FIG. 9A; Fig. 10A shows the plan view of the clamping bolt associated with the staple of FIG. 8A; Fig. 10B shows the side view of the bolt of FIG. 10A; Fig. 11A shows the plan view of the clamping bolt associated with the staple of FIG. 9A; Fig. 11B shows the side view of the bolt of FIG. 11A; Fig. 12A shows the plan view of the assembly of the two staples and the corresponding bolts in the open position; Fig. 12B represents the section along CC of FIG. 12A; Fig. 13A shows the plan view of the assembly of the two staples and the corresponding bolts in the clamping position; Fig. 13B represents the section following DD of FIG. 13A; Fig. 14 shows a needle of the first half-row in the initial phase of the closing cycle of the tip of the manufactured product; Fig. 15 shows the needle of FIG. 14 in the ascent phase, with the plates closed; Fig. 16 shows the needle of FIG. 14 in an intermediate phase of its ascent race, with the plates open; Fig. 17 shows the detail of a needle of the second half-row in the terminal phase of its first ascent; Fig. 18 shows the needle of FIG. 16, where it is visible one of the respective staples in the phase of approximation to the corresponding mesh; Fig. 19 shows the needle of FIG. 18, with the staple in the mesh attachment phase; FIG: 20 represents the needle of FIG. 18, with the staple in the mesh removal phase; Fig. 21 represents the needle of FIG. 18 in the lowered position; Fig. 22 shows the detail of a needle of the second half-row, or one of the respective staples is visible, in the interception phase of the corresponding stitch of the first half-row which has been transferred; Fig. 23 shows the needle of FIG. 22, with the staple in the support phase of the corresponding mesh on the neck of the needle before the opening of the respective bolt; Fig. 24 shows the needle of FIG. 23 in the ascent position to release the corresponding mesh from the first half-row of the staple; Fig. 25 shows the needle of FIG. 24 in the lowered position below the spout of the plates, with the corresponding meshes of the first and second half-rows in the retained position and with the respective open plate; Fig. 26 shows the needle of FIG. 25 in the ascent phase, with the stage closed; Fig. 27 shows the needle of FIG. 26 in another ascent phase, with the plates closed; Fig. 28 shows the needle of FIG. 27 in another ascent phase and with the respective open stage; Fig. 29 shows the needle of FIG. 28 with the corresponding staple in the phase of approximation to the stitches loaded on the needle rod; Fig. 30 shows the needle of FIG. 29 during the final ascent phase to agree to the removal of the corresponding meshes by the staple; Fig. 31 shows the needle of FIG. 30 in the descent phase; Fig. 32 shows the needle of FIG. 31 in the final descent phase, with the corresponding meshes of the first and second half-rows which have been taken up by the staple; Fig. 33A shows the needle of FIG. 23 in the ascent phase, with the corresponding mesh of the first half-row in the retained position and with the mesh of the second half-row blocked by the corresponding staple, according to an alternative embodiment of the present device; Fig. 33B shows the needle of FIG. 33A in the final descent phase, with the corresponding stitch of the second half-row which has been unloaded; Fig. 33C shows the needle of FIG. 33B during the final ascent phase, with the plates closed which block the corresponding mesh of the first half-row loaded on the rod; Fig. 33D represents the needle of FIG. 33C in the phase of another ascent, with the plates open and with the corresponding staple in the phase of approximation to the corresponding mesh of the first half-row; Fig. 33E represents the needle of FIG. 33D, with the staple in the approach phase; Fig. 33F represents the needle of FIG. 33E during the final ascent phase to allow the removal of the corresponding mesh from the first half-row by the respective staple; Fig. 33G represents the needle of FIG. 33F in the descent phase; Fig. 33H represents the needle of FIG. 33G in the final descent phase, and the corresponding stitch of the first half row which has been taken up by the respective staples; Fig. 34A represents the detail of the phase of formation of the closing nodes of the chain, at the end of the remeshing of the tip of the manufactured product; Fig. 34B represents the detail of the sampling phase of the end part of the re-molding wire, by the means of insertion of the latter inside the tip of the manufactured product, before making the cut; Fig. 34C shows the detail of the phase of placement in the operational position of the cutting and movement means of said wire insertion means itself; Fig. 35 shows the detail in the phase of FIG. 34C, according to an alternative embodiment; Fig. 36 shows the detail of the phase of FIG. 34D, according to an alternative embodiment, after the phase of FIG. 35; Fig. 37 shows the detail of the PRESA predisposition phase of the remeshing wire, and of the operational means correspondents, according to an alternative embodiment; Fig. 38A shows the detail of the phase of positioning the means for cutting the molding wire and removing the terminal part of the wire, by means suitable for its insertion inside the manufactured product, after the phase of FIG. 37; Fig. 38B shows the detail of the cutting phase of the remeshing wire and of inserting the terminal part of the latter inside the manufactured product, after the phase of FIG. 38; Fig. 39A represents the phase of FIG. 38A, according to an alternative embodiment; Fig. 39B represents the phase of FIG. 38B, according to an alternative embodiment, after the phase of FIG. 39A; Fig. 40 schematically represents the phase of attachment of a portion of the manufactured product to facilitate the introduction of the means for attaching the remeshing wire and of inserting the latter inside the manufactured product; Fig. 41A shows the perspective view of any tubular manufactured product with the tip open; Fig. 41B schematically represents the manufactured product of FIG. 41A in the prefinal phase of closing the tip; Fig. 41C schematically represents the manufactured product of FIG. 41A in the final phase of closing the point; Fig. 41D shows the view in longitudinal section of FIG. 41C; Fig. 42A shows the perspective view of a bottom with the point formed by two identical and adjacent edges (S, R), called "fish mouth"; Fig. 42B schematically represents the bottom of FIG. 42A in the pre-final phase of closing the tip; Fig. 42C schematically represents the bottom of FIG. 42A in the final phase of closing the point; Fig. 42D represents the view in longitudinal section of FIG. 42C; 43 shows schematically the subdivision into two half-rows of a knitting cylinder with an even number of needles; Fig. 44 shows, schematically, the subdivision into two half-rows of a knitting cylinder of a knitting cylinder with an odd number of needles; Fig. 45 shows, schematically, another subdivision into two half-rows of a knitting cylinder; Fig. 46 shows the detail of the means for the insertion of the terminal part of the molding wire inside the manufactured product; Fig. 47 shows a machine according to the invention in the knitting position, with the plate near the needle cylinder; Fig. 48 shows the machine of FIG. 46 with the plate away from the needle cylinder.

Réduit à sa structure essentielle et en référence aux figures des dessins annexés, un procédé pour réaliser l'union de deux bords d'un produit manufacturé tubulaire tricoté, spécialement de la pointe d'un bas, comportant préalablement la phase de fabrication du produit manufacturé tricoté commençant par le bord élastique et terminant du côté de la pointe qui reste ouverte, avec une machine circulaire à un seul cylindre, comporte les phases de traitement suivantes:

  • soulever un prédéterminé nombre d'aiguilles (3) d'une première demi-rangée (x) des maille formées en dernier jusqu'à disposer les mailles correspondantes (8) à un niveau utile pour permettre un successif prélèvement;
  • soulever un prédéterminé nombre d'aiguilles (30) du deuxième demi-rangée (y) des mailles formées en dernier, jusqu'à porter les mailles correspondantes (80) à un niveau légerement supérieur à celui du bec (60) des platines (6);
  • prélèver les mailles (8) ainsi soulevées de la dite première demi-rangée (x), avec les correspondants moyens de transfert, et abaisser les aiguilles correspondantes (3);
  • transférer les mailles (8) qui ont été prélèvées avec un retournement de 180° autour d'un axe diamétral (a-a) du cylindre (1) des aiguilles (3,30), de manière que chaque maille (8) ainsi retournée soit enfilée sur l'aiguille correspondante (30) de la dite deuxième demi-rangée (y);
  • soulever les aiguilles (30) avec les mailles (80) dudit deuxième demi-rangée (y) de manière à charger aussi les mailles (8) de la première demi-rangée (x) qui ont été transférées et les libérer des respectifs moyens de transfert; et successivement:
  • abaisser les aiguilles (30) du deuxième demi-rangée (y), avec les platines (6) de la machine ouvertes, de manière à porter les mailles (8,80) de la première et de la deuxième demi-rangée, qui ont été placées en position de retenu, à un niveau inférieur à celui du bec (60) des platines (6);
  • déplacer lesdits moyens de transfert des mailles (8) dans la respective position initiale, avec un retournement de 180° opposé au precedent, autour du précité axe (a-a);
  • placer lesdits moyens de transfert en correspondance des aiguilles (30) de la deuxième demi-rangée (y), avec une rotation de 180° par rapport au cylindre (1), autour à l'axe de ce dernier;
  • soulever les aiguilles (30) de la deuxième demi-rangée (y), avec les platines (6) fermées, de manière que les paires de mailles correspondantes (8,80) du premier et du deuxiéme demi-rangée résultent retenues par les platines (6) dans une position prédéterminée par rapport à la tige des aiguilles respectives (30);
  • soulever ultérieurement les aiguilles (30) de la deuxième demi-rangée (y), avec les platines (6) ouvertes, jusqu'à déplacer les paires de mailles (8,80) au niveau opérationnel des précités moyens de prélèvement et de transfert des mailles (8) de première demi-rangée (x), de manière que les paires de mailles (8,80) resultent prélèvables par ces-ci;
  • abaisser les aiguilles (30) du deuxième demi-rangée (y), de manière que les paires de mailles (8,80) soient prélèvées par lesdits moyens de transfert, et que le produit manufacturé soit complètement détaché des aiguilles (30) de la deuxième demi-rangée;
  • transférer le produit manufacturé ainsi libéré de la machine de tricotage et avec les mailles (8,80) ainsi bloquées, avec une rotation d'amplitude angulaire prédéterminée autour à un axe vertical (b-b), de manière à le placer à une distance prédéterminée du cylindre (1) à aiguilles, dans une station (R) de remaillage;
  • disposer les mailles (8,80) du produit manufacturé qui a étè tranféré à distance angulaire constante et prédéterminé en relation à la finesse de remaillage volue, au moyens du mouvement de respectifs moyens de prélèvement et de transfert en direction centripète par rapport a les demi-rangées (x,y) du produit manufacturé à remailler;
  • remailler les paires de mailles (8,80) correspondantes ainsi placées et retenues par les moyens de prélèvement et de transfert, avec une aiguille (9) de remaillage, en formant une chaînette, et exécuter deux ou plusieur noeuds de fermeture de la chaînette;
  • effectuer la coupe du fil (F) de remaillage;
  • libérer les paires de maille (8,80) de la première et de la deuxième demi-rangée qui ont été remaillées et décharger le produit manufacturé fini.
Reduced to its essential structure and with reference to the figures of the accompanying drawings, a process for achieving the union of two edges of a knitted tubular manufactured product, especially of the point of a stocking, comprising beforehand the manufacturing phase of the manufactured product knitting starting with the elastic edge and ending on the side of the point which remains open, with a circular machine with a single cylinder, comprises the following processing phases:
  • lifting a predetermined number of needles (3) from a first half-row (x) of the last formed stitches until the corresponding stitches (8) are placed at a useful level to allow a successive removal;
  • raise a predetermined number of needles (30) of the second half-row (y) of the last formed stitches, until bringing the corresponding stitches (80) to a level slightly higher than that of the beak (60) of the plates (6 );
  • take the stitches (8) thus raised from said first half-row (x), with the corresponding transfer means, and lower the corresponding needles (3);
  • transfer the stitches (8) which have been removed with a 180 ° turn around a diametrical axis (aa) of the cylinder (1) of the needles (3.30), so that each stitch (8) thus returned is threaded on the corresponding needle (30) of said second half-row (y);
  • lift the needles (30) with the stitches (80) of said second half-row (y) so as to also load the stitches (8) of the first half-row (x) which have been transferred and release them from the respective means of transfer; and successively:
  • lower the needles (30) of the second half-row (y), with the machine plates (6) open, so as to carry the stitches (8,80) of the first and of the second half-row, which have have been placed in the retained position, at a level lower than that of the spout (60) of the plates (6);
  • moving said mesh transfer means (8) to the respective initial position, with a 180 ° reversal opposite the previous one, around the aforementioned axis (aa);
  • place said transfer means in correspondence of the needles (30) of the second half-row (y), with a rotation of 180 ° relative to the cylinder (1), around the axis of the latter;
  • lift the needles (30) of the second half-row (y), with the plates (6) closed, so that the corresponding pairs of stitches (8,80) of the first and second half-rows are retained by the plates (6) in a predetermined position relative to the stem of the respective needles (30);
  • subsequently raise the needles (30) of the second half-row (y), with the plates (6) open, until the pairs of stitches (8,80) are moved to the operational level of the aforementioned means of removal and transfer of first half-row (x) stitches (8), so that the pairs of stitches (8.80) result in their picking;
  • lower the needles (30) of the second half-row (y), so that the pairs of stitches (8,80) are taken up by said transfer means, and that the manufactured product is completely detached from the needles (30) of the second half row;
  • transfer the manufactured product thus released from the knitting machine and with the stitches (8,80) thus blocked, with a rotation of predetermined angular amplitude around a vertical axis (bb), so as to place it at a predetermined distance from the needle cylinder (1) in a remeshing station (R);
  • arrange the mesh (8.80) of the product manufactured which has been transferred at a constant and predetermined angular distance in relation to the finer remeshing fineness, by means of the movement of respective withdrawal and transfer means in centripetal direction relative to the half-rows (x, y) of the manufactured product to remesh;
  • remesh the corresponding pairs of stitches (8,80) thus placed and retained by the removal and transfer means, with a remeshing needle (9), by forming a chain, and execute two or more nodes for closing the chain;
  • cut the remeshing wire (F);
  • release the mesh pairs (8,80) from the first and second half-rows that have been remeshed and discharge the finished manufactured product.

Avantageusement, conformément à l'invention, au terme de la phase de transfer du produit manufacturé de la station (T) de tricotage à celle (R) de remaillage, il est prevu de positionner lesdits moyens de prélèvement des mailles (8,80) à un niveau utile pour permettre le mouvement par les organes de commande correspondants, de manière à placer les mailles (8,80) dans la position voulue et en consentir l'abbandon après le remaillage.
En outre, avantageusement, conformément à l'invention, il est prevu d'inserer le bout du fil (F) de remaillage à l'intérieur du produit manufacturé, après la formation des noeuds de fermeture de la chaînette et avant de lacher le produit fini.Advantageously, in accordance with the invention, at the end of the transfer phase of the manufactured product from the knitting station (T) to that (R) of remeshing, it is planned to position said means for taking off the meshes (8,80) at a useful level to allow movement by the corresponding control members, so as to place the meshes (8,80) in the desired position and to consent to their abandonment after remeshing.
In addition, advantageously, in accordance with the invention, it is planned to insert the end of the remeshing wire (F) inside the manufactured product, after the formation of the closure nodes of the chain and before releasing the final product.

En référence aux Figs. 47 et 48 des dessins annexés, à la fin du tricotage du produit manufacturé est avantageusement prevu d'eloigner le plateau (41) de la tête texile de la machine.
Conformément à l'invention, en référence aux Fig. 2D et 2E des dessins annexés, il est aussi prevu, pendant la phase de transfert du produit manufacturé de la station (T) de tricotage à celle (R) de remaillage, d'interrompre l'aspiration du produit manufacturé par le cylindre (1) à aiguilles pendant le tricotage, et de soulever le tube correspondant (100) d'aspiration jusqu'au niveau prédéterminé, de manière à proteger le produit manufacturé et en empêcher l'accrochage par les organes de la machine, comme par exemple les platines (6).With reference to Figs. 47 and 48 of the accompanying drawings, at the end of knitting of the manufactured product is advantageously provided for moving the plate (41) away from the texile head of the machine.
According to the invention, with reference to Figs. 2D and 2E of the appended drawings, it is also planned, during the transfer phase of the manufactured product from the knitting station (T) to that (R) of remeshing, to interrupt the aspiration of the manufactured product by the cylinder (1 ) with needles during knitting, and raise the corresponding suction tube (100) to the predetermined level, so as to protect the manufactured product and prevent it from being caught by the machine's components, such as the turntables (6).

Avantageusement, conformément à l'invention, pendant la phase de remaillage du produit manufacturé, il est prevu d'activer une aspiration d'air vers le bas, au moyen d'un tube correspondant (92) coaxial au produit manufacturé, de manière à en consentir la détente pendat son remaillage.
Ainsi, il est aussi prevu, pendant la phase de remaillage, d'introduire l'aiguille (9) dans chaque paires de maille (8,80) à unir suivant une direction oblique par rapport à celle de l'axe en comun aux deux mailles (8,80). De telle sorte, il résulte aisé le positionnement d'un crochet (14) et guide-chaînette (10) pour cooperer avec l'aiguille (9) à la formation des points de remaillage et des noeuds de fermeture de la chaînette.Advantageously, in accordance with the invention, during the remeshing phase of the manufactured product, provision is made to activate a downward air suction, by means of a corresponding tube (92) coaxial with the manufactured product, so as to agree to relax it during its remeshing.
Thus, it is also planned, during the remeshing phase, to introduce the needle (9) into each pair of stitches (8,80) to be joined in a direction oblique to that of the axis in common with the two stitches (8.80). In this way, it results easily the positioning of a hook (14) and chain guide (10) to cooperate with the needle (9) the formation of the stitching points and of the chain closing nodes.

En outre, le fil (F) de remaillage est avantageusement le même utilisé pour le tricotage du produit manufacturé, sans solution de continuité mais, en alternative, le fil (F) peut être alimenté par une bobine différente de celle de tricotage.
Selon une forme alternative de réalisation de l'invention et en référence aux Fig. 6B et 6C des dessins annexés, la phase de remaillage des bords du produit manufacturé est réalisée avec préalable prélèvement des mailles (8,80) à unir, par une fonture semi-circulaire de pointes d'accrochage pour remailler (91), de manière à charger sur celles-ci les mailles (8,80) avant d'en exécuter l'union. Le remaillage ainsi exécuté prend les mêmes caracteristiques qualitatives du remaillage réalisé traditionnellement. Pendant cette phase, il est prevu de soulever le tube d'aspiration (92) qui assure la détente du produit manufacturé durant le remaillage, de manière à en consentir le soutien dans la position la plus apte et de manière à empêcher le défilement accidental des mailles (8,80) des pointes de fonture (91). Au terme du remaillage, il est prevu d'abaisser ledit tube (92) pour permettre le déchargement du produit manufacturé fini.
En outre, en référence aux Fig. 33A - 33H, selon une forme alternative de réalisation du procédé décrit, il est prevu de réaliser, après le transfert des mailles (8) de la première demi-rangée (x) et avant le tranfert du produit manufacturé de la station de tricotage à celle de remaillage, le tricotage des mailles (8) de la première demi-rangée (x) dans celles de la deuxième demi-rangée (y). Plus en détail, après l'interception des mailles (8) par les aiguilles (30) de la deuxième demi-rangée, il est prevu de:

  • libérer les mailles (8) des respectifs moyens de transfert;
  • soulever les aiguilles (30) de la deuxième demi-rangée de manière que chaque maille (8) de la première demi-rangée soit en position de retenu sur le col de l'aiguille correspondante (30) et de manière que chaque maille (80) de la deuxième demi-rangée soit positionnée par le précités moyens de transfert en position de déchargé, c'est-à-dire inférieurement à l'extremité libre du clapet ouvert de sa propre aiguille (30);
  • retirer les précités moyens de tranfert;
  • abaisser les aiguilles (30) de la deuxième demi-rangée, avec les platines (6) ouvertes et jusqu'à niveau de formation des mailles, de manière à tricoter chaque mailles (8) de la première demi-rangée dans la maille correspondante (80) de la deuxième demi-rangée laquelle est ainsi déchargée de la respective aiguille (30);
  • reporter lesdits moyens de prélèvement et de transfert des maille (8) de la première demi-rangée dans la respective position initiale, avec un retournement de 180° opposé au precedent, autour de l'axe (a-a) du cylindre (1);
  • positionner lesdits moyens de transfert en correspondance des aiguilles (30) de la deuxième demi-rangée (y), avec une rotation de 180° par rapport au cylindre (1), autour de l'axe de ce dernier;
  • soulever les aiguilles (30) de la deuxième demi-rangée, avec les platines (6) fermées, de manière que les mailles correspondantes (8) de la première demi-rangée soient retenues par les platines (6) dans une position prédéterminée par rapport à leur tige;
  • soulever encore les aiguilles (30) de la deuxième demi-rangée, avec les platines (6) ouvertes, jusqu'à porter toutes les mailles correspondantes (8) au niveau opérationnel des précités moyens de prélèvement et de transfert, de manière que lesdites mailles (8) résultent capturées par ces-ci;
  • abaisser les aiguilles (30) de la deuxième demi-rangée, de manière que le produit manufacturé soit libéré des aiguilles (30). Avantageusement, au terme du tricotage du produit manufacturé, il est prevu d'éloigner le plateau de la tête textile de la machine. Pour ce qu'il attiens au dispositif pour réaliser ledit procédè, celui-ci comprend:
  • des moyens à came (31,32) pour commander l'ascension et respectivement la déscente d'un nombre prédéterminé d'aiguilles (3,30) d'une première et d'une deuxième demi-rangée de mailles (8,80), dont le moyens sont dans la condition active quand les cames de tricotage sont dans la condition inactive et inversement;
  • des moyens pour prélever les mailles (8) de ladite première demi-rangée (x) et les renveser de 180° autour d'un axe diamétral (a-a) du cylindre (1) des aiguilles (3,30), avec une paire d'agraffes (2) pour chaque maille (8) et au-moins un pêne correspondant (20) d'ouverture et respectivement de fermeture, lesquels sont logés coulissant dans des rainures radiales d'un secteur semi-circulaire (4): ledit secteur (4) étant monté tournant avec amplitude angulaire dans les deux directions de 180° autour d'un axe diamétral (a-a) du cylindre des aiguilles (3,30), lequel est en position au-dessus des platines (6) de la machine qui fabrique le produit manufacturé, et supporté par une couronne horizontale (5) laquelle est à son tour solidaire à un bras horizontal (51) tournant autour d'un axe vertical (b-b) et verticalement oscillant entre deux positions, l'une (A), basse, d'embrayage de la couronne (5) sur la tête textile de la machine et sur les moyens de la station (R) de remaillage et l'autre (B), haute, de débrayage de la couronne (5) pour en permettre le transfert d'une station opérationnelle à l'autre. Ladite couronne (5) est en outre abile à tourner dans un plan orthogonal à l'axe du cylindre (1), dans la phase de remaillage de la pointe du produit manufacturé, au moyen d'un transmission à cingle dentée (50) et engranages (65,66), ou dispositif similair, lequel est réliable à un correspondant organe moteur (56). La couronne (5) est aussi pourvue d'un organe de débrayage et de brayage en phase de la transmission, ainsi de permettre le mouvement adapté des mailles (8,80) à unir, pendant le remaillage, par rapport aux correspondantes moyens de remaillage;
  • des moyens à came (7) pour commander le retournement dans les deux directions de 180° du secteur semi-circulaire (4) autour d'un axe diamétral (a-a) du cylindre (1);
  • des moyens à came (201) pour le mouvement desdites agraffes (2) et respectifs pênes (20) dans la station (T) de tricotage du produit manufacturé;
  • des moyens pour commander la rotation horizontale d'un bras (51), avec un cylindre pneumatique (67) dont la tige a l'extremité libre reliée à un levier (68) solidaire à la base inférieure d'une colonne (52) de support du bras (51), laquelle colonne (52) est constituée par la tige d'un cylindre à axe (b-b), de manière à consentir soit la rotation du bras (51) autour à l'axe (b-b) de la colonne (52) dans la phase de transfert du produit manufacturé de la station de tricotage (T) à celle de remaillage (R), soit sa translation verticale lelong du même axe (b-b) dans la phase d'embrayage/débrayage de la couronne (5) sur la tête textile de la machine ou sur les moyens opérationnels de la station (R) de remaillage;
  • des moyens pour rendre ladite couronne (5) tournante solidairement au cylindre (1) des aiguilles (3,30) dans la phase initiale du cycle de remaillage du produit manufacturé, avec un pêne vertical (53) solidaire à la couronne (5) et angulairement oscillant entre deux positions, l'une d'accrochage de la couronne (5) à un élément solidaire au cylindre (1), et l'autre d'accrochage de la couronne (5) à une plaque fixe (200) de la machine, pour en permettre l'arrêt dans une position angulaire prédéterminée;
  • des moyens pour bloquer le boîtier des platines (11) de la machine dans une position angulaire fixe et prédéterminée, avec une came (110) libre d'osciller autour à un pêne (111) solidaire à un support (109) dont la position angulaire par rapport au cylindre (1) à aiguilles est variable et lequel est monté sur la partie fixe (200) de la machine: ladite came (110) étant pourvue de deux traces curvilignes (112) développées suivant deux arcs correspondants de circonférence, chaqu'une des quelles (112) est adaptée à constituer élément de guidage pour un correspondant goujon (113) solidaire au boîtier des platines (11).
    Au début de son intervention, le goujon (113) le plus proche au pêne (53) résulte à l'intérieur de la trace correspondante (112), c'est-à-dire engagé avec la came (110). Avec une rotation de la couronne (5) solidairement au cylindre (1), le pêne (53), glisse sur un côté de la came (110) et il en provoque le rotation. Ce-ci determine le dégagement du goujon (113) dejà engagé avec la came (110) et l'introduction de l'autre goujon (113) dans l'autre trace (112). Avec une autre rotation de la couronne (5), le pêne provoque la rotation inverse de la came (110), ainsi de permettre la réinsertion du premier goujon (113) dans la trace respective (112), en rétablissant la condition préexistante au mouvement de la came (110). De telle façon, pendant la rotatin de la couronne (5), au moins un des goujon (113) resulte engagé avec la came (110), et le boîtier des platines (11) resulte constament solidaire au support (109) c'est-à-dire à une partie fixe de la machine;
  • des moyens à came (59) pour commander le mouvement desdites agraffes (2) et des respectifs pênes (20) avant d'exécuter le remaillage de la pointe du produit manufacturé;
  • des moyens à came (58) pour commander l'ouverture des pênes (20) dans la phase de décrochement du produit manufacturé fini;
  • une machine à coudre et remailler (130), pour réaliser le remaillage de l'union des paires de mailles (8,80) correspondantes, laquelle est placée à une distance prédéterminée du cylindre (1) de tricotage du produit manufacturé, c'est-à-dire dans une position prédéterminée de la station (R) de remaillage;
  • des moyens (95,96,97) pour la coupe finale du fil (F) de remaillage et pour retenir le bout du fil (F1) fourni par la bobine d'alimentation.
Conformément à l'invention et en référence aux Fig. 1A-1D des dessins annexés, les cames (7) de retournement dudit secteur (4) sont activées au moyen des cylindres pneumatiques correspondants (70) supportés par le bras (51) de soutien de la couronne (5). A la tige de chaque cylindre (70) est liée une autre tige (71) avec un ressort de contraste à l'extremité libre de laquelle est fixée une came (7). Un corps en forme de bloc (73) dirige l'excursion d'une deuxième tige (74) laquelle est liée à ladite came (7) et en permet le support guidé, en cooperation avec ladite tige (71).
En alternative, en référence à la Fig. 3B des dessins annexés, lesdites cames (7) sont activées au moyen de correspondants cylindres pneumatiques (40) solidairs à une partie fixe (200) de la machine.In addition, the remeshing yarn (F) is advantageously the same used for knitting the manufactured product, with no continuity, but, as an alternative, the yarn (F) can be supplied by a spool different from that of knitting.
According to an alternative embodiment of the invention and with reference to Figs. 6B and 6C of the appended drawings, the remeshing phase of the edges of the manufactured product is carried out with prior removal of the meshes (8,80) to be joined, by a semi-circular bed of hooking points for remeshing (91), so to load on these the meshes (8,80) before executing the union. The remeshing thus carried out takes on the same qualitative characteristics as the remeshing carried out traditionally. During this phase, it is planned to lift the suction tube (92) which ensures the relaxation of the manufactured product during the remeshing, so as to provide support in the most suitable position and so as to prevent the accidental scrolling of the stitches (8.80) of the needle points (91). After remeshing, it is planned to lower said tube (92) to allow the unloading of the finished manufactured product.
Furthermore, with reference to Figs. 33A - 33H, according to an alternative embodiment of the method described, it is planned to carry out, after the transfer of the meshes (8) of the first half-row (x) and before the transfer of the manufactured product from the knitting station to the remeshing station, knitting of the stitches (8) of the first half row (x) into those of the second half row (y). In more detail, after the interception of the stitches (8) by the needles (30) of the second half-row, it is planned to:
  • release the meshes (8) from the respective transfer means;
  • raise the needles (30) of the second half-row so that each stitch (8) of the first half-row is in the retained position on the neck of the corresponding needle (30) and so that each stitch (80 ) of the second half-row is positioned by the aforementioned transfer means in the unloaded position, that is to say below the free end of the valve open with its own needle (30);
  • withdraw the aforementioned means of transfer;
  • lower the needles (30) of the second half-row, with the plates (6) open and to the level of formation of stitches, so as to knit each stitch (8) of the first half-row in the corresponding stitch ( 80) of the second half-row which is thus discharged from the respective needle (30);
  • transfer said means for removing and transferring the meshes (8) of the first half-row to the respective initial position, with an inversion of 180 ° opposite the previous one, around the axis (aa) of the cylinder (1);
  • position said transfer means in correspondence of the needles (30) of the second half-row (y), with a rotation of 180 ° relative to the cylinder (1), around the axis of the latter;
  • raise the needles (30) of the second half-row, with the plates (6) closed, so that the corresponding stitches (8) of the first half-row are retained by the plates (6) in a predetermined position relative to to their stem;
  • still raise the needles (30) of the second half-row, with the plates (6) open, until all the corresponding meshes (8) are brought to the operational level of the abovementioned removal and transfer means, so that said meshes (8) result captured by them;
  • lower the needles (30) of the second half-row, so that the manufactured product is released from the needles (30). Advantageously, at the end of the knitting of the manufactured product, it is planned to move the plate away from the textile head of the machine. For what it attaches to the device for carrying out said process, it includes:
  • cam means (31,32) for controlling the rise and fall of a predetermined number of needles (3,30) respectively of a first and a second half-row of stitches (8,80) , the means of which are in the active condition when the knitting cams are in the inactive condition and vice versa;
  • means for removing the stitches (8) from said first half-row (x) and returning them by 180 ° around a diametrical axis (aa) of the cylinder (1) of the needles (3.30), with a pair of staples (2) for each mesh (8) and at least one corresponding bolt (20) for opening and respectively for closing, which are slidably housed in radial grooves of a semi-circular sector (4): said sector (4) being mounted rotating with angular amplitude in two directions of 180 ° around a diametrical axis (aa) of the cylinder of the needles (3,30), which is in position above the plates (6) of the machine which manufactures the manufactured product, and supported by a horizontal crown (5) which is in turn integral with a horizontal arm (51) rotating around a vertical axis (bb) and vertically oscillating between two positions, one (A ), low, of clutch of the crown (5) on the textile head of the machine and on the means of the remeshing station (R) e and the other (B), high, for disengaging the crown (5) to allow the transfer from one operational station to another. Said crown (5) is further adept at rotating in a plane orthogonal to the axis of the cylinder (1), during the remeshing phase of the tip of the manufactured product, by means of a toothed pin transmission (50) and gears (65,66), or similar device, which is connectable to a corresponding drive member (56). The crown (5) is also provided with a declutching and clutching member in phase of the transmission, thus allowing the adapted movement of the meshes (8,80) to be united, during the remeshing, with respect to the corresponding remeshing means;
  • cam means (7) for controlling the turning in the two 180 ° directions of the semi-circular sector (4) around a diametrical axis (aa) of the cylinder (1);
  • cam means (201) for the movement of said staples (2) and respective bolts (20) in the station (T) for knitting the manufactured product;
  • means for controlling the horizontal rotation of an arm (51), with a pneumatic cylinder (67) whose rod has the free end connected to a lever (68) integral with the lower base of a column (52) of arm support (51), which column (52) is constituted by the rod of a cylinder with axis (bb), so as to allow either the rotation of the arm (51) around the axis (bb) of the column (52) in the transfer phase of the manufactured product from the knitting station (T) to that of the remeshing (R), that is to say its vertical translation along the same axis (bb) in the clutch engagement / disengagement phase of the crown ( 5) on the textile head of the machine or on the operational means of the remeshing station (R);
  • means for making said crown (5) rotating integrally with the cylinder (1) of the needles (3.30) in the initial phase of the re-molding cycle of the manufactured product, with a vertical bolt (53) integral with the crown (5) and angularly oscillating between two positions, one for hooking the crown (5) to an element integral with the cylinder (1), and the other for hooking the crown (5) to a fixed plate (200) of the machine, to allow it to stop in a predetermined angular position;
  • means for locking the housing of the plates (11) of the machine in a fixed and predetermined angular position, with a cam (110) free to oscillate around a bolt (111) secured to a support (109) whose angular position with respect to the needle cylinder (1) is variable and which is mounted on the fixed part (200) of the machine: said cam (110) being provided with two curvilinear traces (112) developed along two corresponding arcs of circumference, each one of which (112) is adapted to constitute a guide element for a corresponding stud (113) integral with the housing of the plates (11).
    At the start of its intervention, the stud (113) closest to the bolt (53) results inside the corresponding trace (112), that is to say engaged with the cam (110). With a rotation of the crown (5) integral with the cylinder (1), the bolt (53) slides on one side of the cam (110) and causes it to rotate. This determines the clearance of the stud (113) already engaged with the cam (110) and the introduction of the other stud (113) in the other trace (112). With another rotation of the crown (5), the bolt causes the reverse rotation of the cam (110), thus allowing the reinsertion of the first stud (113) in the respective trace (112), by restoring the pre-existing condition to the movement of the cam (110). So during the rotatin of the crown (5), at least one of the studs (113) results engaged with the cam (110), and the housing of the plates (11) results constamentally integral with the support (109) that is to say a fixed part of the machine;
  • cam means (59) for controlling the movement of said staples (2) and of the respective bolts (20) before carrying out the remeshing of the tip of the manufactured product;
  • cam means (58) for controlling the opening of the bolts (20) in the unhooking phase of the finished manufactured product;
  • a sewing and remeshing machine (130), for remeshing the union of the corresponding pairs of stitches (8,80), which is placed at a predetermined distance from the knitting cylinder (1) of the manufactured product, this is ie in a predetermined position of the remeshing station (R);
  • means (95, 96, 97) for the final cutting of the remeshing wire (F) and for retaining the end of the wire (F1) supplied by the supply reel.
According to the invention and with reference to Figs. 1A-1D of the accompanying drawings, the cams (7) for reversing said sector (4) are activated by means of the corresponding pneumatic cylinders (70) supported by the arm (51) supporting the crown (5). Another rod (71) is linked to the rod of each cylinder (70) with a contrast spring at the free end of which a cam (7) is fixed. A block-shaped body (73) directs the excursion of a second rod (74) which is linked to said cam (7) and allows the guided support, in cooperation with said rod (71).
Alternatively, with reference to FIG. 3B of the accompanying drawings, said cams (7) are activated by means of corresponding pneumatic cylinders (40) integral with a fixed part (200) of the machine.

Avantageusement, conformément à l'invention, lesdites cames (7) sont à profil fondamentalement hélicoïdal.
En outre, ledit secteur (4) est pourvu de deux rouleaux (41), lesquels sont montés foux sur des correspondants arbres horizonteaux (42) du côté opposé par rapport à l'axe de symétrie (d-d) du secteur (4), et ils sont destinés à tâter le profil actif desdites cames (7) pour provoquer le retournement du secteur (4).Advantageously, in accordance with the invention, said cams (7) have a basically helical profile.
In addition, said sector (4) is provided with two rollers (41), which are mounted idly on corresponding horizontal shafts (42) on the opposite side with respect to the axis of symmetry (dd) of the sector (4), and they are intended to feel the active profile of said cams (7) to cause the sector (4) to overturn.

Selon une forme alternative de réalisation, pour permettre la rotation de la couronne (5) pendant la phase de fermeture de la pointe du produit manufacturé, il est prevu un arbre moteur à axe vertical, pour simplification ne pas reppresenté dans les dessins annexés, lequel réalise son propre mouvement de rotation de la transmission principle de la machine textile, dont l'extremité supérieure est pourvue d'un pignon denté qui doit s'engager avec une couronne dentée (66) lequelle est liée solidairement à la couronne (5). Ce-ci permet la rotation de la couronne (5) dans la station (T) de tricotage, en phase avec le cylindre (1).According to an alternative embodiment, to allow rotation of the crown (5) during the closing phase of the tip of the manufactured product, there is provided a motor shaft with vertical axis, for simplification not shown in the accompanying drawings, which performs its own rotational movement of the main transmission of the textile machine, the upper end of which is provided with a toothed pinion which must engage with a toothed crown (66) which is integrally connected to the crown (5). This allows the rotation of the crown (5) in the knitting station (T), in phase with the cylinder (1).

Avantageusement, ladite couronne (5) est supportée par le bras (51) au moyen de trois coussinets ou rouleaux façonnés (54) lequels soutiennent un coulisseau en "V" circulaire (57), parallèle et coaxial à la couronne (5), placé au dessus à cette derniére et convenablement eloigné de celle-ci au moyen de plusieures colonne (55).
Avantageusement, chaque agraffe (2) est pourvue de deux talons (21), lesquels sont proéminents du côté opposé et verticalement décalés, pour en permettre la translation alternative à l'intérieur des respectives rainures du secteur (4) grâce à une correspondante came (201) de commande dans les stations de tricotage (T) et des cames (58) et (59) dans la station de remaillage (R).Advantageously, said crown (5) is supported by the arm (51) by means of three shaped bearings or rollers (54) which support a circular "V" slide (57), parallel and coaxial with the crown (5), placed above to the latter and suitably away from it by means of several columns (55).
Advantageously, each staple (2) is provided with two heels (21), which are prominent on the opposite side and vertically offset, to allow the alternative translation within the respective grooves of the sector (4) thanks to a corresponding cam ( 201) in the knitting stations (T) and cams (58) and (59) in the remeshing station (R).

Ainsi, avantageusement, chaque pêne (20) est pourvu de deux talons (22), proéminents du côté opposé et verticalement décalés, pour en permettre le mouvement dans le sens de la fermeture, respectivement ouverture, des agraffes correspondantes (2) dans la phase de capture, respectivement de libération, des mailles (8,80) à unir.
En outre, avantageusement, l'hauteur et la largeur desdits talons (21,22) sont chiosies en relation au profil actif de la came de commande correspondante. La presence desdits talons (21,22) rend possible la translation longitudinale dans les deux directions contôlée des agraffes (2) et des respectifs pênes (20), durant les phases de prélèvement des mailles (8) de la première demi-rangée (x), de transfert de celles-ci sur les aiguilles (30) de la deuxième demi-rangée (y), de transfert du produit manufacturé de la station (T) de tricotage à celle (R) de remaillage, de prédisposition des mailles (8,80) au remaillage et de désengagement du produit manufacturé fini.
Conformément à l'invention, la tête desdites agraffes (2) a un profil cunéiforme, pour faciliter la capture, respectivement libération, des mailles (8,80).Thus, advantageously, each bolt (20) is provided with two heels (22), protruding on the opposite side and vertically offset, to allow movement thereof in the direction of closing, respectively opening, of the corresponding staples (2) in the phase capture, respectively release, of the meshes (8,80) to be united.
In addition, advantageously, the height and the width of said heels (21, 22) are chosen in relation to the active profile of the corresponding control cam. The presence of said heels (21, 22) makes possible the longitudinal translation in the two controlled directions of the staples (2) and of the respective bolts (20), during the phases of sampling of the meshes (8) of the first half-row (x ), transfer of these on the needles (30) of the second half-row (y), of transfer of the manufactured product from the knitting station (T) to that (R) of remeshing, of predisposition of the meshes (8,80) to the remeshing and disengagement of the finished manufactured product.
According to the invention, the head of said staples (2) has a wedge-shaped profile, to facilitate the capture, respectively release, of the meshes (8,80).

Ainsi, avantageusement, lesdites agraffes (2) ont la pointe pliée en correspondance de la tête, latéralement et intérieurement à la respective direction de glissage pour en permettre l'insértion dans des correpsondantes cavités longitudinales des aiguilles (3,30) et ainsi permettre la capture des mailles (8,80) de la première et de la deuxième demi-rangée (x,y).
En outre, avantageusement, la face extérieure de la pointe de chaque pêne (20) est contigue, c'est-à-dire juxtaposée, à la face intérieure de la respective agraffe (2).
De même, chaque pêne (20) est pourvu d'une appendice transversale (27) apte à former un élément de guidage par rapport à la pointe de l'agraffe correspondente (2) et délimiter, en cooperation avec un évidement correspondant (28) de la relative agraffe (2), un siege (29) pour les mailles correspondantes (8,80) dans la position de fermeture.
De cette façon, à chaque ensemble d'agraffes (2) et respectifs pênes (20) est assurée la rigidité necessaire.Thus, advantageously, said staples (2) have the point folded in correspondence of the head, laterally and internally in the respective sliding direction to allow insertion into corresponding longitudinal cavities of the needles (3.30) and thus allow the capture of the meshes (8,80) of the first and the second half-row (x, y).
In addition, advantageously, the outer face of the point of each bolt (20) is contiguous, that is to say juxtaposed, with the inner face of the respective staple (2).
Similarly, each bolt (20) is provided with a transverse appendage (27) capable of forming a guide element relative to the point of the corresponding staple (2) and delimiting, in cooperation with a corresponding recess (28) of the relative staple (2), a seat (29) for the corresponding meshes (8,80) in the closed position.
In this way, to each set of staples (2) and respective bolts (20) is ensured the necessary rigidity.

Conformément à l'invention ladite machine à ramailler (130) comprend un bâti destiné à supporter:

  • une barre porte-aiguilles (90) pour soutenir l'aiguille (9) de remaillage, laquelle barre (90) est pourvue d'un siege pour la glissière de couverture de l'aiguille (9) qui est tenue en position normalement ouverte au moyen d'un ressort (19) logé dans un'évidement de la même barre (90) et dont la course est réglable au moyen d'une vis de régulation (18): ladite glissière (24) étant pourvue d'un talon (34) pour son mouvement au moyen d'une came correspondante (25) de fermeture en phase de formation d'un point à chaînette de remaillage;
  • une barre porte-crochet (26), à l'extrémité libre de laquelle est fixé un crochet (14) cooperant avec l'aiguille (9) dans la phase de formation des points de remaillage;
  • un bras tâteur (15) pour le mouvement de la barre (26) porte-crochet et lequel est actioné par une came (16) solidaire à un arbre à coude (17) ledit arbre (17) étant orthogonal à la barre porte aiguille (90) et relié à cette dernière au moyen d'une bielle (23) de manière à realiser un meccanisme du type bielle-manivelle pour mouvementer la barre (90) dans la phase de remaillage. Cette disposition résulte particulièrement apte pour conferir compacité, simplicité constructive et fiabilité à la partie du dispositif qui réalise le remaillage de la pointe du produit manufacturé.
According to the invention, said picking machine (130) comprises a frame intended to support:
  • a needle bar (90) for supporting the remeshing needle (9), which bar (90) is provided with a seat for the needle cover slide (9) which is held in the normally open position at the by means of a spring (19) housed in a recess of the same bar (90) and the stroke of which is adjustable by means of a regulating screw (18): said slide (24) being provided with a heel ( 34) for its movement by means of a corresponding cam (25) for closing in the phase of forming a stitch with a remeshing chain;
  • a hook-carrying bar (26), at the free end of which is fixed a hook (14) cooperating with the needle (9) in the phase of forming the remeshing points;
  • a feeler arm (15) for the movement of the hook-carrying bar (26) which is actuated by a cam (16) integral with an elbow shaft (17) said shaft (17) being orthogonal to the needle-carrying bar ( 90) and connected to the latter by means of a connecting rod (23) so as to produce a mechanism of the connecting rod-crank type for moving the bar (90) in the remeshing phase. This arrangement is particularly suitable for imparting compactness, constructive simplicity and reliability in the part of the device that remeshs the tip of the manufactured product.

Conformément à une première forme d'actuation de l'invention et en référence à la Fig. 39A des dessins annexés, les moyens (95) pour la coupe du fil (F) de remaillage sont disposés en proximité de la zone de travail de l'aiguille (9) de remaillage, du même côté de la remailleuse (130) par rapport à la ligne de remaillage.
En alternance et en référence à la Fig. 34C des dessins annexés, lesdits moyens (95) de coupe sont disposés du côté opposé de la ramailleuse (130) par rapport à la ligne de remaillage.According to a first form of actuation of the invention and with reference to FIG. 39A of the appended drawings, the means (95) for cutting the remeshing wire (F) are arranged in proximity to the working zone of the remeshing needle (9), on the same side of the remeshing machine (130) with respect to to the remeshing line.
Alternately and with reference to FIG. 34C of the accompanying drawings, said cutting means (95) are arranged on the opposite side of the pruner (130) relative to the re-molding line.

Avantageusement et en référence à la Fig. 34B de dessins, des moyens sont prevus pour inserer le bout final du fil (F) de ramaillage à l'intérieur du produit manufacturé, après la formation des noeuds de fermeture du remaillage même, avec une aiguille (93) à glissière (94), placé face aux noeuds de fermeture et apte au prélèvement dudit fil (F) et à l'inserer à fond dans le produit manufacturé, avec un mouvement de translation, et ici l'abbandoner. Au terme de l'insertion, le fil (F) se désenfile spontanément de l'aiguille (93), par l'effet de la rétraction de celui-ci et préalable ouverture de la glissière.Advantageously and with reference to FIG. 34B of drawings, means are provided for inserting the final end of the stitching wire (F) inside the manufactured product, after the formation of the closure knots of the stitching itself, with a needle (93) with slide (94) , placed in front of the closing nodes and able to take the said wire (F) and insert it fully into the manufactured product, with a translational movement, and here abandon it. At the end of the insertion, the thread (F) spontaneously comes out of the needle (93), by the effect of the retraction of the latter and prior opening of the slide.

En alternative et en réfèrence à la Fig. 38A des dessins, une aiguille (98) à glissière (99) est placée du côté opposé de l'aiguille (9) de remaillage par rapport auxdits noeuds de fermeture. Le fil (F) se libére spontanément de l'aiguille (98) par effet de la rétraction de ce dernier, préalable serrage de la glissière respective (99). Avantageusement, des moyens sont prévus, pour effectuer la tension élastique des maille du produit manufacturé pendant la phase de remaillage, avec un tube aspirant (92) placé inférieurement aux moyens de remaillage et lié à l'aspirateur de la machine qui réalise le produit manufacturé. Le même tube (92) peut être utilisé pour convoyer les produits manufacturés terminés aux respectifs magasins de stockage.As an alternative and with reference to FIG. 38A of the drawings, a needle (98) with slide (99) is placed on the opposite side of the remeshing needle (9) with respect to said closure nodes. The thread (F) is released spontaneously from the needle (98) by the effect of the retraction of the latter, prior tightening of the respective slide (99). Advantageously, means are provided for carrying out the elastic tension of the mesh of the manufactured product during the remeshing phase, with a suction tube (92) placed below the remeshing means and connected to the vacuum cleaner of the machine which produces the manufactured product. . The same tube (92) can be used to convey the finished manufactured products to the respective storage stores.

Conformément à l'invention il est possible d'exécuter ledit procédé avec un cylindre (1) des aiguilles (3,30) ayant soit un nombre pair que un nombre impair d'aiguilles.According to the invention it is possible to carry out said method with a cylinder (1) of needles (3.30) having either an even number than an odd number of needles.

Dans le détail, en référence à la Fig. 43 des dessins, l'axe (a-a) de rotation du secteur (4) est passant à travers deux aiguilles du cylindre (1) diamétralement opposées, ainsi que les mailles de la première demi-rangée prélevées résultent en nombre pair à celui des aiguilles (3,30) du cylindre (1) moins deux, divisé par deux, et resultent déplacées sur autant d'aiguilles (30) de la deuxième demi-rangée. Mais à la fin du remaillage, les deux mailles (80) des deux aiguilles (30) qui résultent aux extrémités dde la deuxième demi-rangée et qui ont été exclues du processus de déplacement des mailles (8) de la première demi-rangée, sont également remaillées.In detail, with reference to FIG. 43 of the drawings, the axis (aa) of rotation of the sector (4) is passing through two diametrically opposite needles of the cylinder (1), as well as the stitches of the first half-row removed result in an even number to that of the needles (3.30) of the cylinder (1) minus two, divided by two, and result displaced on as many needles (30) of the second half-row. But at the end of the remeshing, the two stitches (80) of the two needles (30) which result at the ends of the second half-row and which have been excluded from the process of moving the meshes (8) of the first half-row, are also re-meshed.

En référence à la Fig. 44 des dessins, il est prevu que l'axe (a-a) de rotation du secteur (4) soit passant entre deux paires d'aiguilles (3,30) diamétralemet opposées du cylindre (1). De cette manière, le nombre de mailles déplacées resulte pair à la moitié du nombre totale des aiguilles (3,30).
En référence à la Fig. 45 des dessins annexés, dans le cas d'aiguilles (3,30) en nombre impair, l'axe (a-a) de rotation du secteur (4) est passant en correspondance d'une aiguille (30) de la deuxième demi-rangée et de la ligne moyenne des aiguilles (3,30) placées aux éxtrémités des respectifs demi-rangées. Dans ce cas, les mailles qui faut transférer correspondent au nombre totale des aiguilles moins un et divisé par deux, et le nombre des aiguilles (30) de la deuxième demi-rangée est égale au nombre des aiguilles (3) de la première demi-rangée plus un.
Pour permettre l'eloignement du plateau (37) de la tête textile de la machine sans altérer le caractère fonctionnel des moyens qui retiennent le fil de tricotage, il est prevu de monter l'ensemble guide-fil (47,48) de la machine sur une bride (43) lié à la colonne (45) du plateau (41) avec un cliquet (46) pour activer/désactiver la jonction. De cette manière, avec le soulèvement de la colonne (45) on détermine le soulèvement de l'ensemble guide-fil (47,48) ainsi de permettre l'action des moyens de prélèvement et transfert des mailles (8,80).With reference to FIG. 44 of the drawings, it is provided that the axis (aa) of rotation of the sector (4) is passing between two pairs of diametrically opposite needles (3,30) of the cylinder (1). In this way, the number of stitches displaced results in even half the total number of needles (3.30).
With reference to FIG. 45 of the accompanying drawings, in the case of needles (3.30) in odd number, the axis (aa) of rotation of the sector (4) is passing in correspondence with a needle (30) of the second half-row and the middle line of the needles (3.30) placed at the ends of the respective half-rows. In this case, the stitches to be transferred correspond to the total number of needles minus one and divided by two, and the number of needles (30) in the second half row is equal to the number of needles (3) in the first half row plus one.
To allow the tray (37) to be moved away from the textile head of the machine without altering the functional character of the means which retain the knitting yarn, it is planned to mount the yarn guide assembly (47,48) of the machine on a flange (43) linked to the column (45) of the plate (41) with a pawl (46) to activate / deactivate the junction. In this way, with the lifting of the column (45), the lifting of the wire guide assembly (47, 48) is determined so as to allow the action of the means of removal and transfer of meshes (8,80).

Le functionement du dispositif décrit, en référence à une forme préferée d'actuation et en supposant la disposition des aiguilles (3,30) comme dans la Fig. 44 des dessins annexés, est le suivant.
Au terme du tricotage du produit manufacturé et du déplacement des mailles (8) des aiguilles (3) de la première demi-rangée (x) sur les aiguilles (30) de la deuxième demi-rangée (y), les cames (32) pour le mouvement des aiguilles (30) en commandent l'abaissement, jusq'au niveau inférieur à celui du bec (60) des platines (8,80) placées en position de retenu. Successivement, le secteur (4) viens porté dans sa position initiale au moyen d'un retournement opposé à celui qui a determiné le déplacement des mailles (8) de la première demi-rangée. En suite, le cylindre (1) viens tourné de 180° par rapport au secteur (4) jusqu'à que ce dernier ne resulte en correspondance exacte avec les aiguilles (30) de la deuxième demi-rangée. A ce point les cames (31) commandent le soulevement des aiguilles (30), avec les platines fermées, jusqu'à que les correspondantes mailles (8,80), retenues par les platines (6) ne resultent dans une position prédéterminée par rapport à la tige des respectives aiguilles (30), c'est-à-dire dans une position adaptée pour consentir leur successif prélèvement par les mêmes agraffes (2) qui en ont operé le déplacement. Successivement, avec les platines (6) ouvertes, les aiguilles (30) viennent soulevées jusqu'à porter la paire de mailles (8,80) à la hauteur des précitées agraffes (2) lesquelles, à ce point, sont faites avancer et sont fermées par les respectifs pênes (20), de manièr à capturer les mailles (8,80). En suite, les aiguilles (30) viennent abaissées, ainsi que le produit manufacturé resulte avec les paires de mailles (8,80) retenues par les agraffes (2) et ainsi libérées des aiguilles (3,30). En suite, la couronne (5) viens soulevées, avec le secteur (4) et avec le produit manufacturé retenu par les agraffes (2), au moyen de l'actionnement du cylindre (52). A ce point, le tube aspirant (100) est soulevé. En suite, l'actionnement du cylindre (67) determine la rotation de la colonne (52) autour de l'axe (b-b) et, solidairement avec elle, de la couronne (5), puisque elle est supportée par le bras (51) rigidement lié à la même colonne (52). A la fin de ladite rotation, la couronne (5) est placée en correspondance de la station de remaillage (R), et abaissée à un niveau utile pour permettre l'intervention des cames (59) de mouvement des agraffes (2) avec les respectifs pênes (20) en position fermé. Après quoi les agraffes (2) avancent de manière centripète, jusqu'à placer les respectives mailles (8,80) qu'il faut unir angulairement équidistantes et en manière que la distance entre deux paire quelconque de mailles (8,80) adjacentes soit égale au pas de remaillage, le quel vient choisi en relation à la finesse de remaillage volue. Les mailles (8,80) qu'il faut unir, ainsi placées, résultent prêtes pour le remaillage le quel vient exécuté au moyen de l'aiguille (9) servie du fil (F), avec la cooperation du guide-chaînette (10) et du crochet (14). Pendant le remaillage, la couronne (5) viens faite tourner au moyens de la transmission liée à la couronne dentée (66). A chaque pas, l'aiguille (9) est inserée dans une paire de mailles correspondentes (8,80) formant une maille de remaillage en chaînette simple. Après l'exécution de la dernière maille de remaillage, l'aiguille (9), avec la cooperation du crochet (14) et du guide-chaînette (10), réalise deux ou plusieurs noeuds de fermeture. Après, le fil (F) viens capturé par l'aiguille (93), qui a la glissière ouverte, et après la fermeture de la glissière, l'aiguille (93) est faite avancer vers l'intérieur du produit manufacturé et à la fin, le fil (F) viens coupé. De cette manière, le bout final du fil (F) de remaillage est inseré à l'intérieur du produit manufacturé, au moyens d'un autre avancement de l'aiguille (93). Le reculement de l'aiguille (93), avec la glissière (94) ouverte, permet l'abbandon spontané dudit bout final du fil (F). Et ce bout, une fois désenfilé de l'aiguille (93), résulte serré par les mailles du produit manufacturé, ainsi que sa sortie reste impossible. Terminée cette phase, la came (58) interviens sur les agraffes (2) du secteur (4) les quelles lâchent les respectives mailles (8,80) dejà unies, permettent le déchargement du produit manufacturé fini à travers le tube (92) dans la position droite, c'est-à-dire d'usage.The operation of the device described, with reference to a preferred form of actuation and assuming the arrangement of the needles (3.30) as in FIG. 44 of the accompanying drawings is as follows.
At the end of the knitting of the manufactured product and the displacement of the stitches (8) of the needles (3) of the first half-row (x) on the needles (30) of the second half-row (y), the cams (32) for the movement of the hands (30) control their lowering, up to the level below that of the spout (60) of the plates (8,80) placed in the retained position. Successively, the sector (4) is brought to its initial position by means of a reversal opposite to that which determined the movement of the meshes (8) of the first half-row. Next, the cylinder (1) has just turned 180 ° relative to the sector (4) until the latter results in exact correspondence with the needles (30) of the second half-row. At this point the cams (31) control the lifting of the needles (30), with the plates closed, until the corresponding meshes (8,80), retained by the plates (6) do not result in a predetermined position relative to the rod of the respective needles (30), that is to say in a position suitable for consenting their successive removal by the same staples (2) which have operated the displacement. Successively, with the plates (6) open, the needles (30) come lifted up to bring the pair of meshes (8,80) up to the aforementioned staples (2) which, at this point, are advanced and are closed by the respective bolts (20), so as to capture the meshes ( 8.80). Next, the needles (30) come down, and the manufactured product results with the pairs of stitches (8,80) retained by the staples (2) and thus freed from the needles (3,30). Next, the crown (5) is raised, with the sector (4) and with the manufactured product retained by the staples (2), by means of the actuation of the cylinder (52). At this point, the suction tube (100) is raised. Next, the actuation of the cylinder (67) determines the rotation of the column (52) around the axis (bb) and, integrally with it, of the crown (5), since it is supported by the arm (51 ) rigidly linked to the same column (52). At the end of said rotation, the crown (5) is placed in correspondence with the remeshing station (R), and lowered to a useful level to allow the intervention of the cams (59) of movement of the staples (2) with the respective bolts (20) in the closed position. After which the staples (2) advance in a centripetal fashion, until placing the respective meshes (8,80) which must be angularly equidistant and in such a way that the distance between any two pair of adjacent meshes (8,80) is equal to the step of remeshing, which comes chosen in relation to the fineness of remeshing volue. The meshes (8,80) which must be united, thus placed, result ready for remeshing it comes executed by means of the needle (9) served with the wire (F), with the cooperation of the chain guide (10) and the hook (14). During the remeshing, the crown (5) is made to rotate by means of the transmission linked to the toothed crown (66). At each step, the needle (9) is inserted into a pair of corresponding stitches (8.80) forming a remeshing stitch in a simple chain. After the completion of the last stitch, the needle (9), with the cooperation of the hook (14) and the chain guide (10), makes two or more knots of closure. Next, the wire (F) comes captured by the needle (93), which has the slide open, and after the closure of the slide, the needle (93) is advanced towards the inside of the manufactured product and at the end, the wire (F) just cut. In this way, the final end of the remeshing wire (F) is inserted inside the manufactured product, by means of another advancement of the needle (93). The retraction of the needle (93), with the slide (94) open, allows the spontaneous abandonment of said final end of the wire (F). And this end, once the needle (93) has been threaded, results in being tightened by the meshes of the manufactured product, so that its exit remains impossible. Finished this phase, the cam (58) intervenes on the staples (2) of the sector (4) which drop the respective meshes (8,80) already united, allow the unloading of the finished manufactured product through the tube (92) in the right position, that is to say of use.

Claims (31)

  1. Method for joining the two edges of a knitted tubular article, especially the closing of the toe of a sock, comprising the step of manufacturing a knitted tubular article starting from the elastic hem and finishing on the side of the toe which is left open, by means of a circular machine, and disposibg the last-to-form stitches of a first partial course on the knitting needles of a second partial course of stitches through a 180° overturning thereof about a diametral axis (a-a) of the needles cylinder so that the pairs of stitches of the first and second partial courses will result retained on the needles of the second partial course, characterized in that it comprises, in sequence, the following steps:
    - lowering the needles (30) of the second partial course (y), with the sinkers (6) being open, so as to move the stitches (8, 80) thus predisposed in retained position, to a level below that of the nib (60) of the sinkers (6);
    - bringing the stitches (8) transferring means back to the respective initial position through a 180° overturnung thereof in a direction opposite to the previous one about said axis (a-a);
    - disposing the transfer means in corrispondence of the needles (30) of the second partial course (y), through a 180° rotation with respect to the cylinder (1) about the longitudinal axis thereof;
    - lifting the needles (30) of the second partial (y), with the sinkers (6) being closed, so that the corresponding pairs of stitches (8, 80) will result retained by the sinkers (6) in a predetermined position with respect to the stem of the relevant needles (30);
    - lifting further the needles (30) of the second partial course (y), with the sinkers being open, until the pairs of stitches (8, 80) reach the operativ level of said stiches (8)-transferring means, so that the pairs of stitches (8, 80) will result removable by said means;
    - lowering the needles (30) of the second partial course (y), so as to allow the transfer means to remove the pairs of stitches (8, 80) and the article to be completely detached form the needles (30) of the second partial course;
    - transferring the article with the pairs of stitches (8, 80) thus retained, through a rotation of predeterminated angular amplitude about a vertical axis (b-b), so as to locate it to a preset distance from the needles cylinder (1), in a linking station (R) ;
    - disposing the stitches (8, 80) of the thus transferred article spaced apart of a constant angular distance and circular pitch, as established according to the required hhok-up fineness, by moving the relevant removal and transfer means in centripetal direction with respect to the partial courses (x,, y) of the article to be linked;
    - linking the corresponding pairs of stitches (8, 80) thus disposed and retained by the removal and transfer means using a linking thread (F) to form a chain, and making one or more chain-closing knots;
    - cutting the linking thread (F);
    - releasing the thus linked pairs of stitches (8, 80) and releasing the finished article.
  2. Method according to claim 1 characterized in that the article is transferred from the knitting station (T) to the linking station (R) through a rotation of predetermined angular amplitude about the axis of the needles cylinder (1).
  3. Method according to claim 1 characterized in that it comprises the step of inserting the tail of the linking thread (F) inside the article, after having executed the knots for the closing of the chain and before releasing the finished product.
  4. Method according to claim 1 characterized in that after the knitting of the article the plate is moved away from the knitting head of the machine and during the step of the transferring the article from the knitting station (T) to the linking station (R) the suction operated inside the needles cylinder (1) upon the knitting and the corresponding suction hose (100) is lifted up to a predetermined level.
  5. Method according to claim 1 characterized in that during the step of linking of the article, with the pairs of stitches (8, 80) retained by the relevant removal and transfer means, a suction of the air is operated in the region of the article in order to obtain the stretching thereof.
  6. Method according to claim 1 characterized in that, during the linking step, the needle (9) is inserted into the individual piars of stitches (8, 80) to be linked, at an angle to the direction of the common axis of the two stitches (8, 80).
  7. Method accordin to claim 1 characterized in that the linking thread (F) is the same as used for the knitting of the article.
  8. Method according to claim 1 characterized in that the linking thread (F) is fed by a reel other than that provided for the knitting.
  9. Method according to claim 1 characterized in that the linking step is executed with the pairs of stitches (8, 80) retained by a semicircular front of hook-up spines (91).
  10. Method according to claim 1 characterized in that, after the interception of the stitches (8) by the needles (30) of the second partial course, it includes the following steps:
    - releasing the stitches (8) of the first partial course from the respective transfer means;
    - lifting the needles (30) of the second partial course so that each stitch 88) of the first partial course will result in retained position on the neck of the corresponding needle (30) of the second partial course, and each stitch (80) of the second partial course will be disposed by the transfer means in the unloaded position, that is, below the free end of the open latch of the relevant needle (30);
    - withdrawing said transfer means;
    - lowering the needles (30) of the second partial course, with the sinkers (6) being open, down to the level of stitch formation, so as to insert each stitch (8) of the first partial course into the corresponding stitch (80) of the second partial course which is thus unloaded from the respective needle (30);
    - bringing the means for the removal and transfer of the stitches(8) of the first partial course back to a respective initial position, through a 180° overturning thereof in the direction opposite to the previous one about a diametral axis (a-a) of the needles cylinder (1);
    - disposing said transfer means in correspondence of the needles (30) of the second partial course (y), through a 180° overturning with respect to the cylinder (1), about the axis of the latter;
    - lifting the needles (30) of the second partial course, with the sinkers (6) being closed, so that the corresponding stitches (8) of the first partial course will result retained by the sinkers (6) in a predetermined position with respect to their stem;
    - lifting further the needles (30) of the second partial course, with the sinkers (6) being open, until all the corresponding stitches (8) reach the operative level of the removal and transfer means and result seized by the same means;
    - lowering the needles (30) of the second partial course, so that the article will result released from the needles (30).
  11. Apparatus for joining two edges of a knitted tubular article, especially the toe of a stocking, according to a method as claimed in claims 1-10, characterized in that it comprises:
    - cam means (31, 32) for operating the lifting and respectively the lowering of a predetermined number of needles (3, 30) of a first and second partial course of stitches (8, 80), the cam means being in their operative condition when the knitting cams are in the inoperative condition and vice versa;
    - means for removing the stitches (8) of said first partial course and overturning them through 180° about a diametral axis (a-a) of the cylinder (1) of the needles (3, 30), with a pair of spikes (2) for each stitch (8) and at least a corresponding closing and opening peg (20) which are slidingly housed within corresponding radial slots of a semicircular sector (4): the sector (4) being rotatively mounted to perform an angular excursion in both directions about a diametral axis (a-a) of the cylinder (1) of needles (3, 30), which overlies the sinkers (6) of the machine which makes the article and is supported by a horizontal crown (5) which is in turn solid to a horizontal arma (51) rotating about a vertical transfer axis (b-b) and vertically movable between two positions, the first (A) lower, being for the engagement of the crown (5) on the knitting head of the machine and on the linking station (R) means, and an upper position (B), for the disengagement of the crown (5) in order to allow the transfer thereof from one operative station to the other and said crown (5) being also able to rotate in a plane orthogonal to the axis of the cylinder (1), during the linking of the article toe, by means of a transmission made up of toothed belt (50) and gears (65, 66) or similar device connectable to a driving member (56) so as to allow for a suitable movement of the stitches (8, 80) to be united, during the linking operation, with respect to corresponding linking means;
    - cam means (7) for operating the bidirectional 180°-overturning of the semicircular sector (4) about a diametral axis (a-a) of the cylinder (1);
    - cam means (201) for moving the spikes (2) and respective pegs (20) in the article knitting station (T) ;
    - means for operating the rotation of an arm (51) in a horizontal plane, by a pneumatic cylinder (67) whose stem ha sits free end connected to a lever (68) solid to the lower base of the column which supoorts the arm (51), which column (52) consists of the stem of a cylinder having axis (b-b), allowing both the rotation of the arm (51) about the axis (b-b) of the column (52) during the transfer of the article from the knitting station (T) to the linking station (R), as well as the vertical translation thereof along the same axis (b-b) during the engagement/disengagement of the crown (5) on the knitting head of the machine or on the operative means of the linking station (R);
    - means for causing the crown (5) to rotate solid with the cylinder (1) of the needles (3, 30) upon the initial stage of the article linking, with a vertical pivot (53) solid to the crown (5) and angularly oscillating between two positions, one for engaging the crown (5) to an element solid to the cylinder (1), and the other for engaging the crown (5) to a stationary plate (200) of the amchine to cause it to stop at a predetermined angular position;
    - means for holding the sinkers housing (11) of the machine in a fixed and predetermined angular position, with a cam (110) able to freely oscillate about a pivot (111) solid to a support (109) whose angular position with respect to the needles cylinder can be varied and which is mounted on the fixed part (200) of the machine: said cam (110) being provided with two curvilinear grooves (112) developing according to corresponding arcs of circumference, each of which is able to form a guiding element for a corresponding pin (113) fixed to the sinkers housing (11);
    - cam means (59) for driving the spikes (2) and relevant pegs (20) before carrying out the linking of the article toe;
    - cam means (59) for operating the opening of the pegs (20) upon the step of releasing the finished article;
    - a seamer and linker device (130) for the formation of the hook-up which links the pairs of corresponding stitches (8, 80), which is disposed at a preset distance from the article-knitting cylinder (1), that is in a predetermined position of the linking station (R);
    - means (95, 96, 97) for ultimately cutting the linking thread (F) and holding the end of the thread (F1) fed by a supply reed.
  12. Apparatus according to claim 11 characterized in that the cams (7) for overturning the sector (4) are activated by corresponding pneumatic cylinders supported by the arm (51) bearing the crown (5).
  13. Apparatus according to claim 11 characterized in that said cams (7) are activated by corresponding pneumatic cylinders (40) solid to a fixed part the machine.
  14. Apparatus according to claim 11 characterized in that said cams (7) exhibit a substantially helicoidal profile.
  15. Apparatus according to claim 11 characterized in that said sector (4) is provided with two rollers (41), idlly mounted on corresponding horizontal shats (42) on either side of the axis of simmetry (d-d) of the sector (4) and intended to contact the active profile of the cams (7) to cause the overturning of the sector (4).
  16. apparatus according to claim 11 characterized in that it comprises a vertical driving shaft to allow for the rotation of the crown (5) during the closing of the article toe, which shaft draws its motion from the main drive of the knitting machine and whose upper end is intended to be engaged with the driving means of said main drive (65, 66).
  17. Apparatus according to claim 11 characterized in that said crown (5) is supported by the arm (51) by means of three bearings or shaped rollers (54) which bear a circular "V" guide (57), aprallel and coaxial to the crown (5), disposed at a position overhanging the latter and suitably spaced apart.
  18. Apparatus according to claim 11 characterized in that each spike (2) is provided with two heels (21) which project from either side and are vertically offset to allow for the reciprocating displacement thereof within the relevant slots of the sector (4) by means of corresponding driving cams provided in the knitting station (T) and in the linking station (R).
  19. Apparatus according to claim 11 characterized in that each each of said pegs (20) is provided with two heels (22), projecting from either side and vertically offset to allow the corresponding spikes (2) to be moved in the closing and opening direction, upon the hold and release, respectively, of the stitches (8, 80) to be united.
  20. Apparatus according to claims 11, 18 and 19 characterized in that the height and width of said heels (21, 22) are chosen according to the active profile of the corresponding driving cam.
  21. Aapparatus according to claim 11 characterized in that said spikes (2) have their head shaped in a wedge-like profile to ease the capture, and respectively, the release of the stitches (8, 80).
  22. Apparatus according to claim 11 characterized in that said spikes (2) have the tip of their head bent sideways and internally with respect to the sliding direction thereof to allow them to be inserted into corresponding longitudinal cavities of the needles (3, 30) and thus allowing the stitches (8, 80) of the first and second partial courses (x, y) to be captured.
  23. Apparatus according to claim 11 characterized in that said linker (130) includes:
    - a framework;
    - a needle bar (90) for the linking needle (9), with a covering skid (24): the bar (90) being provided with a seat for the skid (24) which is kept in normally open position by a spring (19) received in a slot of the same bar (90) and whose travel is adjustable by a screw (18), said skid (24) being provided with a heel (34) engaged with a corresponding cam (25) which operates the closing thereof after the formation of a hook-up chain stitch;
    - a crochet bar (26) having a free end on which a crochet (14) is fixed to cooperate with the needle (9) during the formation of the hook-up stitches;
    - a feeler arm (15) for moving the crochet bar (26) and which is operated by a cam (16) solid to a crankshaft (17): said shaft (17) being orthogonal to the needle bar (90) and connected thereto by a connecting rod (23) so as to make up a crank-rod type mechanism for moving the bar (90) during the hook-up.
  24. Apparatus according to claim 11 characterized in that the means (95) for cutting the linking thread (F) are disposed in proximity to to the operative region of the linking needle (9) on the same side of the linker (130) with respect to the hook-up line.
  25. Apparatus according to claim 11 characterized in that said cutting means (95) are disposed on the opposite side of the linker (130) with respect to the hook-up line.
  26. Apparatus according to claim 11 characterized in that it includes means for inserting the tail of linking thread (F) inside the finished article, by means of a needle (93) with skid disposed in front of the closing knots and able to pick up the thread (F) and insert it deeply inside the article by a translation movement nd leave it therein.
  27. Apparatus according to claims 11 and 26 characterized in that said needle (93) disposed on the opposed side of the linking needle (9) with respect to the closing knots.
  28. Apparatus according to claim 11 characterized in that it includes means for tensioning the stitches of the article durink the linking step, with a hose (92) located below the limking means and connected to a corresponding aspirator.
  29. Apparatus according to claims 11 and 18 characterized in that the outer face of the tip of each peg (20) is adjacent, that is juxtaposed, to the inner face of the respective spike (2).
  30. Apparatus according to claims 11, 18 and 19 characterized in that each peg (20) is provided with a transverse appendix (27) apt to form a guiding element for the tip of a corresponding spike (2) and delimit, in cooperation with a corresponding recess (28) of the relevant spike (2), a seat (29) for grasping the corresponding stitches (8, 80) in closing condition.
  31. Apparatus according to claim 11 characterized in that the thread-guide unit is mounted on a bracket connectable to the column (45) of the respective plate (41) by means of a pawl.
EP94830348A 1993-07-12 1994-07-11 Method and device for connecting the two edges of a tubular knitted product during its manufacture Expired - Lifetime EP0635593B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT93FI000128A IT1265881B1 (en) 1993-07-12 1993-07-12 METHOD AND DEVICE TO MAKE THE JOINT OF TWO EDGES OF A TUBULAR KNITTED FABRIC AT THE END OF ITS FORMATION
ITFI930128 1993-07-12

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EP0635593A1 EP0635593A1 (en) 1995-01-25
EP0635593B1 true EP0635593B1 (en) 1997-10-15

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EP (1) EP0635593B1 (en)
KR (1) KR0136960B1 (en)
CN (1) CN1062921C (en)
AT (1) ATE159305T1 (en)
BR (1) BR9402682A (en)
CA (1) CA2127734C (en)
CZ (1) CZ285739B6 (en)
DE (1) DE69406206T2 (en)
ES (1) ES2110207T3 (en)
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IT (1) IT1265881B1 (en)
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US6105399A (en) * 1997-12-04 2000-08-22 Fabritex S.R.L. Method and apparatus for manufacturing tubular knitted articles
US6164091A (en) * 1998-02-20 2000-12-26 Fabritex S.R.L. Method and apparatus for seaming edges of knitted articles

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IT1277396B1 (en) * 1995-07-28 1997-11-10 Matec Srl PROCEDURE AND DEVICE TO PERFORM THE JOINT OF TWO EDGES OF A TUBULAR ARTIFACT AT THE END OF ITS FORMATION PARTICULARLY
IT1289504B1 (en) * 1996-12-20 1998-10-15 Lonati Spa PROCEDURE FOR THE PRODUCTION OF TUBULAR PRODUCTS, OF THE TYPE OF SOCKS OR SIMILAR, WITH A SINGLE CYLINDER CIRCULAR MACHINE
IT1291303B1 (en) * 1997-04-30 1999-01-07 Matec S R L Ora Matec S P A CIRCULAR MACHINE FOR HOSIERY OR KNITWEAR WITH DEVICE TO OPERATE THE TRANSFER OR TRANSPORT OF MANUFACTURED KNIT BUSHES
IT1304868B1 (en) * 1998-07-07 2001-04-05 Golden Lady Spa METHOD AND DEVICE FOR CLOSING THE POINT OF A TUBULAR MANUFACTURE ON A KNITTING MACHINE
EP1118700B1 (en) * 2000-01-18 2003-04-16 Golden Lady S.P.A. Method and device for producing tubular knitted articles and for closing their toes
JP4025512B2 (en) * 2000-05-12 2007-12-19 丸善産業株式会社 Socks toe sewing method and device
IT1314899B1 (en) * 2000-06-27 2003-01-16 Sangiacomo Spa LIFTING DEVICE OF THE KNITTED MANUFACTURE BUILT ON A CIRCULAR MACHINE.
ITFI20010038A1 (en) * 2001-03-08 2002-09-08 Metalworking And Finance Group DEVICE FOR THE COLLECTION OF A TUBULAR KNITTED MANUFACTURE FROM A KNITTING MACHINE AND FOR STITCHING THE STITCH
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EP0635593A1 (en) 1995-01-25
BR9402682A (en) 1995-05-02
SK281557B6 (en) 2001-05-10
ITFI930128A1 (en) 1995-01-12
IT1265881B1 (en) 1996-12-12
CN1062921C (en) 2001-03-07
CZ285739B6 (en) 1999-10-13
DE69406206T2 (en) 1998-05-14
KR0136960B1 (en) 1998-04-28
CN1106088A (en) 1995-08-02
CA2127734C (en) 1999-02-16
IL110188A (en) 1998-04-05
TR27762A (en) 1995-07-27
ATE159305T1 (en) 1997-11-15
ITFI930128A0 (en) 1993-07-12
IL110188A0 (en) 1994-10-21
DE69406206D1 (en) 1997-11-20
JPH0770887A (en) 1995-03-14
ES2110207T3 (en) 1998-02-01
CZ166994A3 (en) 1996-01-17
RU2114226C1 (en) 1998-06-27
US5487281A (en) 1996-01-30
TW333565B (en) 1998-06-11
RU94026090A (en) 1996-07-10
CA2127734A1 (en) 1995-01-13
SK83694A3 (en) 1995-12-06
UA41306C2 (en) 2001-09-17
JP3786723B2 (en) 2006-06-14

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