[go: up one dir, main page]

EP4389951B1 - Aiguille à coulisse pour machines textiles formant des mailles, machine textile formant des mailles et procédé de formation de mailles - Google Patents

Aiguille à coulisse pour machines textiles formant des mailles, machine textile formant des mailles et procédé de formation de mailles

Info

Publication number
EP4389951B1
EP4389951B1 EP22215342.1A EP22215342A EP4389951B1 EP 4389951 B1 EP4389951 B1 EP 4389951B1 EP 22215342 A EP22215342 A EP 22215342A EP 4389951 B1 EP4389951 B1 EP 4389951B1
Authority
EP
European Patent Office
Prior art keywords
needle
slider
stitch
vertical direction
longitudinal direction
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.)
Active
Application number
EP22215342.1A
Other languages
German (de)
English (en)
Other versions
EP4389951A1 (fr
EP4389951C0 (fr
Inventor
Uwe Stingel
Jörg Sauter
Benedikt RAIBER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP22215342.1A priority Critical patent/EP4389951B1/fr
Priority to TW112133494A priority patent/TW202426724A/zh
Priority to JP2025536821A priority patent/JP2026501934A/ja
Priority to KR1020257022970A priority patent/KR20250123841A/ko
Priority to CN202380087399.9A priority patent/CN120513325A/zh
Priority to PCT/EP2023/082558 priority patent/WO2024132339A1/fr
Publication of EP4389951A1 publication Critical patent/EP4389951A1/fr
Application granted granted Critical
Publication of EP4389951B1 publication Critical patent/EP4389951B1/fr
Publication of EP4389951C0 publication Critical patent/EP4389951C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • D04B35/06—Sliding-tongue needles

Definitions

  • Compound needles for stitch-forming textile machines have been well known to experts in the field of textile technology for many years.
  • Stitch-forming textile machines in which compound needles are used include circular knitting machines, flat knitting machines, and warp knitting machines.
  • Compound needles essentially comprise two individual parts: a slider and a needle body, both of which extend primarily in a longitudinal direction.
  • the slider is arranged to be movable relative to the needle body.
  • At the front end of the needle body is a hook with an upwardly open hook interior. By a suitable relative movement of the slider, this hook interior can be opened and closed depending on the position of the slider relative to the needle body.
  • Compound needles differ from other needles for stitch-forming textile machines primarily in the way the hook interior is closed.
  • stitches are formed with the help of compound needles.
  • a yarn is first inserted into the hook interior, and a half stitch is formed by a drawing-in movement of the compound needle.
  • the slider is then moved relative to the needle body in such a way that the hook interior is opened and the half stitch slides along the shaft of the compound needle out of the hook interior.
  • a yarn is then inserted into the open hook interior.
  • the slider is moved relative to the needle body in such a way that the hook interior is closed and the previously formed half stitch on the slider is thrown off the compound needle over the hook. The yarn located in the hook interior is pulled through the previous half stitch and thus formed into a new half stitch.
  • a half stitch and a stitch differ in the number of their Binding points, where the binding points are those points where a (half) stitch touches the preceding and/or following (half) stitches.
  • a half stitch is in contact with only one preceding stitch at two points and therefore has two binding points on the stitch feet.
  • a stitch on the other hand, is in contact with a preceding and a following (half) stitch at two points each. A stitch therefore has four binding points.
  • the EP131709A1 shows a typical compound needle for stitch-forming textile machines, which has a needle shaft in which a U-shaped groove is formed that opens upwards in the vertical direction.
  • the groove is limited laterally by two shaft walls and downwards by a groove base.
  • a slider is accommodated in the groove so that it can be moved longitudinally, whereby the slider can slide on the groove base.
  • the groove is at least partially closed by a guide web. It is known that lint and dirt particles can penetrate the groove of a compound needle during knitting operation, which leads to increased power consumption of the knitting machine and increased wear on the compound needle.
  • the groove has an additional opening in its base or in one of the shaft cheeks.
  • the US3229485A shows a compound needle for stitch-forming textile machines with a needle body, a hook, a groove, and a slider with a working area.
  • the compound needle is said to have a longer service life than conventional latch needles and can be used at higher machine speeds. Lint and dirt can penetrate the groove of this compound needle, thus increasing the power requirements of the compound needle during knitting.
  • the GB512850A shows a compound needle for a knitting machine with a groove and a slider that opens and closes the hook point, which is intended to enable more precise and efficient knitting.
  • the groove has side walls which, together with a groove base that is closed upwards in the vertical direction, form a U-shaped cross-section. This is intended to ensure improved stability and control during the knitting process, leading to higher quality knitwear. The use of this The speed and accuracy of the knitting machine is intended to be improved. Even with a compound needle in this design, large quantities of dirt and lint get into the groove during knitting operation and thus increase the power requirements of textile machines with this type of compound needle.
  • the US4109490A shows a compound needle for use in knitting machines, particularly circular and flat-bed knitting machines. Like conventional compound needles, it comprises a needle body and a slider that can slide in a groove in the needle body.
  • the compound needle includes lugs and stops that control the movement of the compound needle and ensure precise opening and closing of the hook, resulting in more accurate and efficient knitting. Even with such a compound needle, large amounts of lint and dirt can get into the groove of the compound needle during knitting, thus increasing power requirements.
  • a compound needle according to the invention comprises a needle body with a needle shaft that extends predominantly in a longitudinal direction.
  • the needle shaft can have a substantially rectangular cross-section with preferably rounded edges. However, the needle shaft can also have a substantially oval or round cross-section.
  • a hook adjoins the needle shaft, wherein the hook encloses a hook interior that is open upwards in a vertical direction perpendicular to the longitudinal direction.
  • the needle shaft comprises a groove, which is an elongated depression in the needle shaft that has an opening directed upwards in the vertical direction and is delimited downwards in the vertical direction by a groove base.
  • the groove can have a U-shaped cross-section.
  • the width direction runs perpendicular to the length direction and perpendicular to the height direction.
  • a slider of the compound needle rests on the groove base and is guided in the groove so as to be displaceable in the length direction that its front end in the length direction can close and open the hook interior in the height direction.
  • the slider is supported in the height direction on the groove base. It is often advantageous if the slider rests or is supported in the height direction only on the groove base. In any case, the slider has a working area which at least partially delimits the slider upwards in the height direction and which enables the transport and drop of a half stitch during knitting.
  • the transport of a half stitch is understood to mean, for example, the sliding of a half stitch in the length direction of the compound needle.
  • a specialist in textile technology understands the drop of a half stitch to mean the sliding of a half stitch over the closed interior of the hook and off the compound needle so that the half stitch no longer has contact with the compound needle.
  • a dropped half stitch or loop does not wrap around the compound needle.
  • the working area is the area of the slider that is in direct contact with the half stitch during knitting. The working area of the slider therefore includes, among other things, the part of the slider that can be used to close the interior of the hook.
  • the slider is guided in the groove in such a way that a half stitch during knitting exerts a force on the working area of the slider that is directed downwards in height and leads to an increase in the pressure force of the slider on the groove base.
  • the force is preferably exerted by direct contact between the half stitch and the working area of the slider. This ensures that the slider is securely guided on the groove base and prevents the formation of a gap between the slider and the groove base, into which large amounts of lint and dirt could penetrate and remain.
  • the force is preferably exerted on the slider in the area of the longitudinal extension of the groove. The effective direction of the force then intersects with the groove base. This allows the pressure force to be increased very efficiently.
  • the slider usually has no projections or elevations in its working area that could impede the sliding of a half stitch or cause a half stitch to widen. Furthermore, the slider usually has no projections or elevations in its working area via which a longitudinally acting control force, with which the longitudinal movement of the slider can be controlled, can be exerted on the slider.
  • Stitch-forming textile machines usually have a needle channel that is delimited in the width direction by groove walls. The needle body and the slider of the compound needle can advantageously be guided together in the needle channel of a stitch-forming textile machine so as to be longitudinally displaceable, wherein the needle body and the slider are also longitudinally displaceable relative to one another.
  • Compound needles according to the invention can be operated such that a half stitch is formed with a yarn in their hook interior.
  • the yarn is usually inserted into the hook interior when the latter is open.
  • the formed half stitch slides longitudinally away from the hook along the needle shank and out of the hook interior.
  • the compound needle preferably performs an expulsion movement - the hook of the compound needle moves longitudinally out of the needle channel.
  • a force is then exerted on the working area of the slider, which is directed downwards in the vertical direction and increases the pressure force of the slider on the groove base.
  • the increased pressure ensures that the slider is guided particularly firmly against the groove base. This prevents a gap from forming between the slider and the groove base during operation. This can effectively reduce the ingress of lint, dust, and dirt into the groove of a stitch-forming textile machine.
  • a particularly uniform stitch pattern is achieved.
  • the needle body has two shaft walls which define the groove over its entire length in the longitudinal direction in the width direction, which runs perpendicular to the longitudinal direction and perpendicular to the height direction, at least on one side, Preferably, however, on both sides.
  • the shank walls allow the slider to be firmly positioned in the width direction. The slider is therefore not displaceable in the width direction relative to the needle body.
  • the shank walls are two parallel legs of the U-shape, which are connected at their ends by the groove base, with the cutting edge of the groove base running at least partially perpendicular to the cutting edge of the shank walls.
  • the at least two shaft walls of the compound needle have a recess and the working area of the slide projects beyond the recess in the vertical direction or is flush with the recess in the vertical direction.
  • the working area projects beyond the recess or is flush with it when the slide is in a position in which the hook interior is open.
  • the slide is then in a retracted state.
  • the slide is thereby displaced to its maximum extent relative to the needle body in the longitudinal direction pointing away from the hook.
  • a particularly great force can be exerted by a half stitch on a slide that projects beyond the recess or is flush with the recess if the half stitch slides along the shaft in the region of the recess.
  • the at least two shaft walls of the compound needle can have at least one elevation.
  • the elevation projects vertically above the working area of the slider.
  • the working area of the slider preferably projects above the recess, at least when the slider is in a retracted state. If the shaft walls also have a recess, the elevation is arranged longitudinally between the recess and the hook.
  • the compound needle may have a guide bar that is connected to at least one of the shaft walls and at least partially closes the opening of the groove in the vertical direction. If the shaft walls of the compound needle have a recess, the guide bar advantageously adjoins the Recess.
  • the guide bar is preferably an integral component of the needle body. It is particularly advantageous if the guide bar is a part of at least one of the shaft walls that is bent in the width direction. The guide bar increases the stability and, in particular, the rigidity of the compound needle. Compound needles with such a guide bar are particularly suitable for high-speed stitch-forming textile machines.
  • the half stitches formed with a compound needle are usually widened or stretched as they slide from the interior of the hook onto the needle shaft.
  • the compound needle can be designed so that the widening is as small as possible.
  • a needle breast which limits the needle body in vertical direction upwards and which is connected to the hook, can have a diagonally rising course pointing longitudinally away from the hook. Due to the diagonally rising course, the stitch is initially continuously stretched as it slides along the needle breast. This prevents the half stitch from stretching too quickly or abruptly.
  • the compound needle can also be designed with a groove. The groove is a depression in the back of the needle and overlaps with the working area of the slider in the longitudinal direction.
  • the back of the compound needle usually be the surface of the compound needle that limits the needle body in vertical direction downwards.
  • the back of the needle is designed to rest on the bottom of the needle channel of a stitch-forming textile machine.
  • the groove can be arranged so that it extends longitudinally only within the working area of the slider - i.e., it completely overlaps the working area in the longitudinal direction.
  • the widening of the half stitch also influences the amount of force that can be exerted vertically downwards by the half stitch on the slider. It has been shown that by reducing the widening of the half stitch, the friction between the slider and the needle body can also be reduced. The compound needle then requires less power during operation, enabling energy savings.
  • Compound needles are typically driven by engagement with a cam part of a stitch-forming textile machine.
  • the cam parts have at least one groove-like recess along a cam curve.
  • Drive feet of the compound needle protrude into these groove-like depressions and are driven during knitting operation to move longitudinally according to the course of the cam cam.
  • the needle body preferably has a needle drive butt at its rear end of the needle shaft pointing away from the hook, which projects vertically above the surrounding areas of the needle shaft and is suitable for engaging in at least one groove-like depression of a cam part.
  • the needle body can also have more than one needle drive butt.
  • the slider of the compound needle has a slider drive butt at its rear end pointing away from the working area, which projects vertically above the surrounding areas of the slider and is also suitable for engaging in a groove-like depression of a cam part.
  • the slider can also have more than one slider drive butt.
  • the slider drive butt and the needle drive butt usually engage in different groove-like depressions in the cam part.
  • the needle drive butt and the slider drive butt are suitable for absorbing drive forces from a stitch-forming textile machine for driving the compound needle. The drive forces are advantageously provided by a cam part of a stitch-forming textile machine and transmitted to the drive feet.
  • Compound needles are typically designed to be guided in a groove-like needle channel of a stitch-forming textile machine.
  • both the needle body and the slider can be supported on the walls of the needle channel, at least over sections of their longitudinal extension in the width direction.
  • the slider can have a slider shaft that adjoins its working area in the longitudinal direction and has the same width in the width direction as the needle shaft. So that the slider can be guided longitudinally in the U-shaped groove of the needle body between the two shaft walls, the working area of the slider is tapered in the width direction compared to the width of the slider shaft in such a way that it can be inserted into the groove of the needle body.
  • the slider shaft is therefore wider than the working area of the slider.
  • the widened slider shaft also increases the stability of the slider.
  • Such compound needles are therefore particularly advantageous for use in high-speed, loop-forming textile machines.
  • the working area of the slider has a width that is at most equal to the width of the groove or the distance between the shaft walls in the width direction.
  • the compound needle advantageously engages in a further groove-like recess of a cam part, wherein the cam part is suitable for transmitting a drive force acting in the longitudinal direction to the slider.
  • the compound needle can be moved in the width direction relative to the cam part.
  • the compound needle slides along in the groove-like recess and is moved in the longitudinal direction depending on the course of the groove-like recess. In this way, the movement of the compound needle can be controlled with the cam part.
  • at least the slider engages in a groove-like recess of the cam part. The movement of the slider can then be controlled via the cam part.
  • the needle body also engages in a groove-like recess of the cam part.
  • the movement of the needle body can then also be controlled via the cam part. It is particularly advantageous if the slider and the needle body engage in different groove-like recesses of the cam part. The movement of the slider and the movement of the needle body can then be controlled independently so that they can move relative to each other.
  • the Figure 1 shows a compound needle 1 with a needle body 2 and a slider 10.
  • the needle body 2 has a needle shaft 3, the main direction of extension of which lies in a longitudinal direction z.
  • the needle body 2 has a hook 4, which encloses a hook interior 5.
  • the hook 4 is suitable for forming half stitches 12 with a yarn during knitting. With the half stitch 12, a force 13 directed downwards in the vertical direction y can be exerted on the slider 10.
  • the hook interior 5 is open upwards in the vertical direction y.
  • the slider 10, however, is displaceable in the longitudinal direction z in a groove 6 (see Fig. 4-6 ) of the needle body 2 so that it can open and close the hook interior 5 depending on its relative position to the needle body 2.
  • both the slider 10 and the needle body 2 each comprise a drive butt, wherein the drive butt of the slider 10 is referred to as the slider drive butt 21 and the drive butt of the needle body 2 is referred to as the needle drive butt 20.
  • a drive force acting in the longitudinal direction z can be exerted on the needle body 2 and the slider 10 via the drive butts in order to control the movements of the needle body 2 and the slider 10 independently of one another.
  • Fig. 2 Three positions 30, 31, 32 of the compound needle 1 are shown, which typically occur when used in a stitch-forming machine during the operation of the compound needle 1.
  • the representation of common Machine elements known from the prior art, such as sinkers, are dispensed with.
  • Such elements can nevertheless be advantageously combined with the compound needle 1 according to the invention in stitch-forming machines, particularly for holding down and knocking off stitches.
  • the compound needle 1 according to the invention passes through the Fig. 2 illustrated positions 30, 31, 32 in the sequence from left to right to form stitches.
  • the sequence is represented symbolically by arrows 28 between the individual positions 30, 31, 32. Since the same compound needle 1 is shown in all positions, for the sake of clarity not all components of the compound needle 1 have been provided with reference symbols in every position shown.
  • the mode of operation of the compound needle 1 and a method for forming stitches with the compound needle 1 is described below starting from an extension position 30 in which the compound needle 1 protrudes as far as possible from the needle channel 23 in the longitudinal direction z. This means that the distance in the longitudinal direction z between the hook 4 and the needle channel 23 is greatest in this position.
  • a half stitch 12 previously formed with the compound needle 1 is located outside the hook interior 5 on the needle shaft 3 or it wraps around the needle shaft 3.
  • the half stitch 12 is in contact with the slider 10 in the area of the working area 11 of the slider 10.
  • the slider 10 is partially covered by the shaft wall 9. Its covered edges are therefore shown in dashed lines for clarity.
  • the half stitch 12 exerts a force 13 directed downwards in the height direction y on the slider 10.
  • the slider 10 is pushed into the groove 6 by this force 13 (see Fig. 4-6 ) of the needle body 3.
  • the hook interior 5 is opened and a yarn 24 is inserted into the hook interior 5.
  • the compound needle 1 makes a retraction movement 29 in the longitudinal direction z, by which the compound needle 1 is retracted further into the needle channel 23.
  • the slider 10 is moved relative to the needle body 2 such that the slider 10 closes the hook interior 5 with its front end in the longitudinal direction z.
  • the half stitch 12 then slides during the retraction movement 29 along the needle shaft 3 and the slider 10 over the closed hook interior 5 and off the compound needle 1, which Fig. 2
  • the sliding down of the half stitch 12 from the slider needle 1 is also referred to by the expert as a drop, because the half stitch 12 in question then no longer has direct contact with the compound needle 1.
  • a loop is pulled through the half stitch 12 and in this way a new half stitch 12' is formed.
  • the previously formed half stitch 12 thus becomes stitch 26.
  • the new half stitch 12' and the stitch 26 are shown in the illustration of the pull-in position 32. In the pull-in position 32, the compound needle 1 is pulled furthest into the needle channel 23.
  • the distance between the hook 4 and the needle channel 23 in the longitudinal direction z is at its smallest in this position.
  • the new half stitch 12' is still in the hook interior 5.
  • the compound needle 1 makes an expulsion movement 33 in the longitudinal direction z out of the needle channel 23.
  • the slider 10 is moved relative to the needle body 2 such that the hook interior 5 is opened.
  • the compound needle 1 continues its extension movement 33 until it has reached its extension position 30 again.
  • the new half stitch 12' slides out of the opened hook interior 5 onto the needle shaft 3.
  • the previously described stitch formation process begins again at this point. In this way, one stitch after the other can be formed to produce a knitted fabric.
  • the Figure 3 shows an enlarged view of the front end of the slide needle 1 from Figure 1 with the hook 4 and the working area 11 of the slider 10.
  • the slider 10 is partially covered by the shank wall 9. Its covered contours are shown in dashed lines for clarity.
  • the hook interior 5 of the compound needle 1 is shown closed. This means that the working area 11 of the slider 10 is positioned relative to the needle body 2 in such a way that it completely covers the opening of the hook interior 5.
  • a diagonally rising needle breast 17 is connected to the hook 4 in the longitudinal direction z.
  • the needle breast 17 is the surface that limits the needle body 2 upwards in the vertical direction y.
  • the diagonally rising course of the needle breast 17 ensures a continuous, slow and therefore gentle widening of a half stitch 12 when it slides out of the hook interior 5 onto the needle shank 3.
  • the needle body 2 On its needle back 18, which limits the needle body 2 downwards in the vertical direction y, the needle body 2 has a groove 19.
  • the groove 19 is a depression in the needle back 18 that reduces the height of the needle body 2 in the vertical direction y.
  • the groove 19 overlaps in the longitudinal direction z with the working area 11 of the slider and the diagonally rising section of the needle breast 17.
  • the groove 19 prevents excessive widening of a half stitch 12 during knitting.
  • the diagonally rising section of the needle breast 17 ends in a protrusion 15 of the needle body 2, which projects above the slider 10 in the vertical direction y.
  • the protrusion 15 covers the tip of the slider 10 when it is retracted.
  • Fig. 4 is the section AA through the compound needle 1 from Figure 3 shown.
  • the section shows the groove 6 in the needle body 2, in which the slider 10 is guided at this point.
  • the groove 6 is delimited on both sides in the width direction x by a shaft wall 9.
  • Both shaft walls 9 have the previously described elevation 15.
  • the elevation 15 projects beyond the slider 10 in the height direction y by the elevation height 25, which corresponds to the distance in the height direction y between the top side of the elevation and the top side of the slider 10.
  • the elevation height 25 is greater than zero if the elevation 15 projects beyond the slider 10 in the height direction y.
  • a half stitch 12 can slide over the elevation 15, as shown, without coming into contact with the slider 10. This is particularly advantageous when the hook interior 5 is open, because it can prevent the half stitch 12 from touching the tip of the slider 10 and possibly being damaged by the tip.
  • Fig. 3 As can be seen further, the elevation 15 is followed by a recess 14 in the needle body 2.
  • Fig. 5 shows the section BB in the area of this recess 14.
  • the slide 10 is flush with the recess 14 in the shaft walls 9 of the needle body 2 in the vertical direction y.
  • the half stitch 12 rests on the slide 10 when it is located in the area of the recess 14.
  • the half stitch 13 exerts a force 13 on the slide 10, which presses the slide 10 more strongly against the groove base 8 of the groove 6. This prevents a gap from forming between the groove base 8 and the slide 10 during operation, into which gap dirt and lint could penetrate.
  • FIG. 3 In the longitudinal direction z pointing away from the hook, the Fig. 3 In the slider needle 1 shown, a guide bar 16 is attached to the recess 14. In the area of the guide bar 16, the height of the needle shaft 3 is increased in the vertical direction y. This area is therefore not suitable for contact with a half stitch 12 during knitting. The half stitch 12 would then be widened too much.
  • Figure 6 shows the section CC through the slider needle 1 at the Fig. 3 marked point in the area of the guide bar 16. In contrast to the section BB from Fig. 5 It can be seen that the shaft walls 9 protrude in the vertical direction y over the slide 10.
  • the ends of the shaft walls 9 are bent laterally inwards over the groove 6 in the width direction x and at least partially close the groove 6 in the vertical direction y. In the embodiment out of Fig. 6 However, an opening 7 of the groove 6 remains, which is so small that the slider 10 cannot be removed from the groove 6 in the area of the guide bar 16.
  • the guide bar 16 increases the stability of the slider needle 1 and thus its service life.
  • the guide web 16 can also be designed to be continuous, so that the groove 6 no longer has an opening 7 in the region of the guide web 16.
  • the groove 6 ends in the longitudinal direction z behind the guide bar 16.
  • the slide 10 rests on the needle body 2 in the area extending in the longitudinal direction z behind the guide bar 16, without being supported or guided laterally by the shaft walls 9.
  • Fig. 7 is the cut DD from Fig. 3 which lies in the area in the longitudinal direction z behind the guide bar 16 or behind the groove 6.
  • the needle body 2 has a solid, essentially rectangular cross-section without grooves or recesses in this area.
  • the slider 10 rests on the needle body 2. In the area of the section, a tapered area of the slider 10 is cut and marked by hatching.
  • the slider shaft 22 widens behind the cutting plane (non-hatched parts of the slider 10) in the width direction x to the width of the needle body 2.
  • the slider 10 and the needle body 2 can thus both be inserted together in a conventional needle channel 23 of a stitch-forming textile machine 27 and guided independently of one another in the width direction x through the needle channel 23.
  • Fig. 7 In addition to the slider 10 and the needle body 2, a conventional needle channel 23 in a stitch-forming textile machine 27 is also shown. The illustration of further machine parts of the stitch-forming textile machine 27 has been omitted. Therefore, only a very small section of the stitch-forming textile machine 27 is shown, which is also indicated by the break line in Fig. 7 is indicated.
  • the Figure 8 shows an alternative embodiment of the compound needle 1' in an enlarged view.
  • the compound needle 1' and the illustration correspond to a large extent to the compound needle 1, which is partially Figure 3 Therefore, only the differences to the slider needle 1 from Figure 3 In contrast to the slider needle 1 from Figure 3 has the Schibernadel 1' from Figure 8 a recess 14 in the shaft walls 9 of the needle body 2 which is deeper in the height direction y.
  • the Figure 9 shows the cut EE from Figure 8 It can be seen that as a result of the deeper recess 14, the slide 10 has the recess 14 or the Needle body 2 and its shaft walls 9 project in the vertical direction y in the region of the longitudinal extension of the recess 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Nonwoven Fabrics (AREA)

Claims (11)

  1. Aiguille à coulisse (1) pour machines textiles formant des mailles avec
    a) un corps d'aiguille (2) avec une tige d'aiguille (3) qui s'étend principalement dans une direction longitudinale (z),
    b) un crochet (4) qui se raccorde à l'extrémité avant du corps d'aiguille (2) à la tige d'aiguille (3) et entoure un espace intérieur de crochet (5) ouvert vers le haut dans une direction de hauteur (y) perpendiculaire à la direction longitudinale (z),
    c) une rainure (6) qui est un creux allongé dans la tige d'aiguille (3), qui présente une ouverture (7) orientée vers le haut dans la direction de hauteur (y) et qui est limitée vers le bas dans la direction de hauteur (y) par un fond de rainure (8),
    d) une coulisse (10) qui, reposant sur le fond de rainure (8), est guidée dans la rainure (6) de manière à pouvoir être déplacé dans la direction longitudinale (z) de telle sorte qu'elle puisse fermer et ouvrir l'espace intérieur de crochet (5) dans la direction de hauteur (y) avec son extrémité avant dans la direction longitudinale (z),
    e) la coulisse (10) présentant une zone de travail (11) s'étendant dans la direction de largeur (x) et dans la direction longitudinale (z), qui délimite la coulisse (10) au moins partiellement vers le haut dans la direction de hauteur (y) et qui permet le transport et l'éjection d'une demi-maille (12) en mode de tricotage,
    f) et au moins deux parois de tige (9) du corps d'aiguille (2) délimitant la rainure (6) dans une direction de largeur (x) sur toute leur longueur d'extension dans la direction longitudinale (z), la direction de largeur (x) étant perpendiculaire à la direction longitudinale (z) et à la direction de hauteur (y),
    caractérisée
    en ce que la coulisse (10) est guidée dans la rainure (6) de telle sorte qu'avec une demi-maille (12) en mode de tricotage, une force (13) peut être exercée sur la zone de travail (11) de la coulisse (10), qui est dirigée vers le bas dans la direction de hauteur (y) et conduit à un renforcement de la force de pression de la coulisse (10) sur le fond de rainure (8),
    et en ce que les au moins deux parois de tige (9) présentent un évidement (14), la zone de travail (11) de la coulisse (10) dépassant l'évidement (14) dans la direction de hauteur (y) ou se terminant à fleur de l'évidement (14) dans la direction de hauteur (y).
  2. Aiguille à coulisse (1) selon la revendication précédente
    caractérisée en ce que
    les au moins deux parois de tige (9) présentent au moins une élévation (15) qui dépasse la zone de travail (11) de la coulisse dans la direction de hauteur (y) et qui est agencée entre l'évidement (14) et le crochet (4).
  3. Aiguille à coulisse (1) selon l'une quelconque des revendications précédentes
    caractérisée par
    une nervure de guidage (16) qui se raccorde à l'évidement (14) en s'éloignant du crochet (4) dans la direction longitudinale (z), qui est reliée à au moins l'une des au moins deux parois de tige (9) et qui ferme au moins partiellement l'ouverture (7) de la rainure (6) dans la direction de hauteur (y).
  4. Aiguille à coulisse (1) selon l'une quelconque des revendications précédentes
    caractérisée
    a) en ce que le corps d'aiguille (2) présente, à son extrémité arrière de la tige d'aiguille (3) opposée au crochet (4), un pied d'entraînement d'aiguille (20) qui dépasse les zones environnantes de la tige d'aiguille (3) dans la direction de hauteur (y),
    b) et en ce que la coulisse (10) présente, à son extrémité arrière opposée à la zone de travail (11), un pied d'entraînement de coulisse (21) qui dépasse les zones environnantes de la coulisse (10) dans la direction de hauteur (y),
    c) le pied d'entraînement d'aiguille (20) et le pied d'entraînement de coulisse (21) étant adaptés pour recevoir des forces d'entraînement d'une machine textile formant des mailles pour entraîner l'aiguille à coulisse (1).
  5. Aiguille à coulisse (1) selon l'une quelconque des revendications précédentes
    caractérisée
    en ce que la coulisse (10) présente une tige de coulisse (22) se raccordant à sa zone de travail (11) dans la direction longitudinale (z), qui présente la même largeur que la tige d'aiguille (3) dans la direction de largeur (x),
    et en ce que la zone de travail (11) de la coulisse (10) est rétrécie dans la direction de largeur (x) par rapport à la largeur de la tige de coulisse (22) de telle sorte qu'elle peut être insérée dans la rainure (6) du corps d'aiguille (2).
  6. Machine textile formant des mailles (27) avec une aiguille à coulisse (1) selon l'une quelconque des revendications 1 à 5,
    caractérisée en ce que
    le corps d'aiguille (2) et la coulisse (10) sont guidés ensemble dans un canal d'aiguille (23) de la machine textile formant des mailles de manière à pouvoir être déplacés dans la direction longitudinale (z), le corps d'aiguille (2) et la coulisse (10) pouvant également être déplacés l'un par rapport à l'autre dans la direction longitudinale (z).
  7. Machine textile formant des mailles (27) selon la revendication précédente
    caractérisée en ce que
    l'aiguille à coulisse (1) s'engage dans une cavité de type rainure d'une pièce de serrure, la pièce de serrure étant adaptée pour transmettre une force d'entraînement agissant dans la direction longitudinale (z) à l'aiguille à coulisse (1).
  8. Machine textile formant des mailles (27) selon la revendication précédente
    caractérisée en ce que
    la coulisse (10) s'engage dans une cavité de type rainure d'une pièce de serrure, la pièce de serrure étant adaptée pour transmettre une force d'entraînement agissant dans la direction longitudinale (z) à la coulisse (10).
  9. Procédé de formation de mailles avec une aiguille à coulisse (1) selon l'une quelconque des revendications 1 à 5, avec les étapes de procédé suivantes dans l'ordre indiqué :
    a) une demi-maille (12) est formée dans l'espace intérieur de crochet (5) avec un fil (24),
    b) la demi-maille (12) formée glisse hors de l'espace intérieur de crochet (5) dans la direction longitudinale (z) en s'éloignant du crochet (4) le long de la tige d'aiguille (3)
    caractérisée en ce que
    c) avec la demi-maille (12), une force (13) est exercée sur la zone de travail (11) de la coulisse (10), qui est dirigée vers le bas dans la direction de hauteur (y) et renforce la force de pression de la coulisse (10) sur le fond de rainure (8).
  10. Procédé selon la revendication précédente
    caractérisée en ce que
    la force (13) est exercée sur la zone de travail (11) alors que l'espace intérieur de crochet (5) est complètement ouvert dans la direction de hauteur (y).
  11. Procédé selon l'une quelconque des revendications 9 à 10 précédentes
    caractérisée en ce que
    le fil (24) est à nouveau inséré dans l'espace intérieur de crochet (5) tandis que la demi-maille (12) précédemment formée exerce la force (13) sur la zone de travail (11).
EP22215342.1A 2022-12-21 2022-12-21 Aiguille à coulisse pour machines textiles formant des mailles, machine textile formant des mailles et procédé de formation de mailles Active EP4389951B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP22215342.1A EP4389951B1 (fr) 2022-12-21 2022-12-21 Aiguille à coulisse pour machines textiles formant des mailles, machine textile formant des mailles et procédé de formation de mailles
TW112133494A TW202426724A (zh) 2022-12-21 2023-09-04 用於縫合形成紡織機的複合針、縫合形成紡織機以及縫合形成之方法
KR1020257022970A KR20250123841A (ko) 2022-12-21 2023-11-21 스티치 형성 섬유 기계를 위한 복합 바늘, 스티치 형성 섬유 기계, 및 스티치 형성을 위한 방법
CN202380087399.9A CN120513325A (zh) 2022-12-21 2023-11-21 用于成圈纺织机的复合针、成圈纺织机和用于成圈的方法
JP2025536821A JP2026501934A (ja) 2022-12-21 2023-11-21 編み目形成編み機のための複合針、編み目形成編み機、および編み目形成方法
PCT/EP2023/082558 WO2024132339A1 (fr) 2022-12-21 2023-11-21 Aiguille à coulisse pour machines textiles à formation de mailles, machine textile à formation des mailles et procédé de formation de mailles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22215342.1A EP4389951B1 (fr) 2022-12-21 2022-12-21 Aiguille à coulisse pour machines textiles formant des mailles, machine textile formant des mailles et procédé de formation de mailles

Publications (3)

Publication Number Publication Date
EP4389951A1 EP4389951A1 (fr) 2024-06-26
EP4389951B1 true EP4389951B1 (fr) 2025-09-10
EP4389951C0 EP4389951C0 (fr) 2025-09-10

Family

ID=84547261

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22215342.1A Active EP4389951B1 (fr) 2022-12-21 2022-12-21 Aiguille à coulisse pour machines textiles formant des mailles, machine textile formant des mailles et procédé de formation de mailles

Country Status (6)

Country Link
EP (1) EP4389951B1 (fr)
JP (1) JP2026501934A (fr)
KR (1) KR20250123841A (fr)
CN (1) CN120513325A (fr)
TW (1) TW202426724A (fr)
WO (1) WO2024132339A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB512850A (en) * 1938-03-18 1939-09-27 Fnf Ltd Improvements in or relating to knitting machines and to needles for such machines
CH398860A (de) * 1961-11-28 1966-03-15 Vyzk Ustav Bavlnarsky Zweiteilige Nadel zum Durchwirken und Verfahren zur Herstellung derselben
ES445984A1 (es) * 1976-03-05 1977-07-01 Bosch Palacios Juan Perfeccionamientos en las maquinas tricotosas de hacer pun- to.
DE3325767C1 (de) 1983-07-16 1984-11-08 Theodor Groz & Söhne & Ernst Beckert Nadelfabrik KG, 7470 Albstadt Schiebernadel fuer maschenbildende Textilmaschinen

Also Published As

Publication number Publication date
KR20250123841A (ko) 2025-08-18
WO2024132339A1 (fr) 2024-06-27
JP2026501934A (ja) 2026-01-19
CN120513325A (zh) 2025-08-19
TW202426724A (zh) 2024-07-01
EP4389951A1 (fr) 2024-06-26
EP4389951C0 (fr) 2025-09-10

Similar Documents

Publication Publication Date Title
DE69819253T2 (de) Flachstrickmaschine mit bewegbaren, schlaufeformenden Platinen
DD202190A5 (de) Strickmaschine
DE2241769A1 (de) Strickmaschine
DE19913822C2 (de) Schiebernadel mit geteiltem Schieber
DE69824096T2 (de) Flachstrickmaschine mit Schlaufendrückern und Strickverfahren mit der Flachstrickmaschine
DE3214536C2 (de) Mascheneinstreichvorrichtung für Flachstrickmaschinen
DE4007253A1 (de) Strickmaschine
DE3237732A1 (de) Flachstrickmaschine mit nadelauswahleinrichtung
DE2939639A1 (de) Flachstrickmaschine
DE4129845A1 (de) Rundstrickmaschine zur herstellung von plueschwaren
DE19914080A1 (de) Flachstrickmaschine
EP1801277B1 (fr) Dispositif pour la production d'un tricot double parois
EP3643823B1 (fr) Aiguille coulissante d'un métier à mailles jetées
DE69401439T2 (de) Vorrichtung zum niederhalten der maschen an einer flachstrickmaschine
DE10164550A1 (de) Nadel für Strick- oder Wirkmaschinen und damit ausgerüstete Strickmaschine
EP1304408B1 (fr) Platine pour la fermeture de pointes de bas
EP4389951B1 (fr) Aiguille à coulisse pour machines textiles formant des mailles, machine textile formant des mailles et procédé de formation de mailles
CH671594A5 (fr)
EP0293956A1 (fr) Procédé et dispositif pour traiter les fils de tricotage au bord du tricot
EP1416078B1 (fr) Elément de formation de maille pour métier a tricoter trame ou chaîne
DE69504605T2 (de) Platinenanordnung in einer Strickmaschine und Verfahren zur Herstellung eines Gestricks durch Anwendung dieser Anordnung
EP4095297B1 (fr) Platine, dispositif de tricotage et procédé de tricotage destinés à la production de produits en maille
EP4019681B1 (fr) Came de tricotage pour un métier à tricoter rectiligne, métier à tricoter rectiligne et procédé de fonctionnement de ladite machine à tricoter rectiligne
EP4019680B1 (fr) Système de tricotage pour un métier à tricoter rectiligne, métier à tricoter rectiligne avec dutit système et procédé de fonctionnement du métier à tricoter rectiligne
DE102018117309A1 (de) Rundstrickmaschine mit Wirkfunktion

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250102

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20250514

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502022005410

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

U01 Request for unitary effect filed

Effective date: 20250918

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT RO SE SI

Effective date: 20250925

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250910

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251211