EP1649092B1 - Stitch forming arrangement for a knitting machine or warp knitting machine for machine knitting - Google Patents

Description

There are known machines for machine-stitching with at least one continuous thread, in which the thread is moved by means of the hook part of a knitting or knitting needle in each case through the previously formed loop stitch and forms a new stitch. In the one ( DE 101 12 277 C1 ), the walls of a needle channel each have an upwardly open recess, which form a vertical displacement edge. Furthermore, the knitting needle or knitting needle is mounted and formed in the needle channel in such a way that it can be moved back beyond the center-side vertical edges of the recess by means of a transfer hook that can be moved in the longitudinal and in the vertical direction.

In another device of this type ( DE 101 52 856 C1 ) has the knitting needle under the needle hook on a slot into which a horizontally and vertically movable downwardly movable transfer hook is penetrated. The needle hook is offset in this device by the amount of penetration depth of the transfer hook.

In a third device of this type ( DE 102 11 231 C1 ) has the knitting needle under the needle hook on a slot into which a horizontally and vertically movable downwardly movable transfer hook is penetrated. The front bearing surface of the transfer hook is movable in its relative to the needle hook relative upward movement about the depth of the slot engaging portion of the transfer hook perpendicular to the needle hook.

The prevailing conditions in the types of machines mentioned are difficult and very different, so that insignificant-looking details for practical enforcement the explanations can be decisive. The mentioned known devices have as a common feature a downwardly directed transfer hook for holding the last formed stitch through which a new thread is pulled (emulated). This arrangement has several advantages over the usual stitch formation.

From the DE 29 09 963 C2 For example, a method of machine stitching is known in which an upwardly directed transfer hook is used, but the inward movement of the transfer hook, perpendicular to the needle, caused linting to form particles below the transfer hook which interfered with the transfer of the stitch. Also problems of security in the stitch transfer to the transfer hook by tolerances in the needle channels of the machine prevented that the known method could prevail so far.

From the GB 2 043 714 A a slider needle is known which has a slot in its needle breast and at a distance to a recess. The needle is associated with a slider having an extension extending into the recess. The recess and the extension have sliding surfaces arranged obliquely to the needle longitudinal direction, so that the slider, when moved longitudinally relative to the needle, experiences a sideways movement. The slider has a reduced width mesh receiving portion that fits into the needle slot. The mesh receiving portion serves to temporarily hold a loop in stitch formation.

The object of the invention characterized in claim 1 is to provide a stitching arrangement in which the control of the knitting elements and also the knitting elements for advanced pattern applications are simplified with high performance and safety, and a larger one Stability of the transfer hook with a self-cleaning effect when dipping into the needle slot for the finest needle designs are possible.

The measure of claim 1, in particular, the trouble-free transition of the mesh is ensured.

In addition to the advantages arising from the solution of the problem, the invention is basically used advantageously for all mentioned machine variants. It offers versatile patterning options even for the finest pitches with the goal of strong knit fabrics.

Advantageous developments of the invention are specified in the subclaims.

With the stitch forming arrangement of the present invention, a knitting or warp knitting machine can be provided with at least one continuous thread which is looped through the previously formed loop to form the new loop stitch by means of the hook portion of a knitting needle Transverse movement of the transfer hook and the movement of the needle is arranged by arranged at the shaft end and engaging in cam tracks control feet during mutually relative longitudinal movement of the two stitch forming elements is effected. The knitting elements are non-positively connected by the coupling elements, by the inward-transverse movement of the upward transfer hook within the needle channel or (in warp knitting machines) below the Abschlagkammes during the forward movement is controlled such that after leaving the Kulierstellung the needle and release the old stitch from the transfer hook the stitch forming elements are jointly advanced in their upper position, such that the control foot of the Transfer hook over a synchronous increase in the machine lock intercept the coupling impact of the needle.

The development according to claim 2 facilitates the mesh transfer from the needle breast to the holding section of the transfer hook for the finest needle designs and the controlled lifting the transfer hook from the needle slot with a self-cleaning oblique movement.

In a machine provided with the stitch forming arrangement according to the invention, for the patterning function "catching" prior to the general return stroke of the new thread inserted needle, the control feet of the transfer hook defined by the patterning are controllable with a mechanically or electronically operated backward pulse such that by coupling the stitch forming elements Needle hook and transfer hooks perform the required small return stroke together.

The old stitch can pass from the transfer hook to the new thread inserted in the needle hook before the needle makes its further return stroke, released from the coupling with the transfer hook. The advantage is mainly that the styling needle always makes the same movement.

After the coupling of the stitch-forming elements, these are together by means of the control foot of the needle phase-limited vorbewegbar. Through the control foot of the Transferhakenschaft they are phase-limited together (for Fang) rückbewegbar. The coupling of both knitting elements is releasable by the independent backward movement of the needle and for the inward movement of the transfer hook can be provided on the needle lock arranged skid.

The control of the knitting elements for various Pattern effects and the cross motion of the transfer hook can thus be improved.

The stitching assembly may be used on a flat knitting machine having two straight long angled and longitudinally displaceable needle beds which are aligned with their channels during the stitching. The transfer hook parts can consist of two parallel lamellae. For the transfer process to the other side of the bed a transfer hook can be moved to the middle of the free opening of both needle beds and then the needle with the hook of the other bed, the transferring stitch and their holding lamellas pierced and expand, so that after the withdrawal of the transferring Transfer hook blades all stitches are on the receiving needles.

This allows the knitting of the loops in flat knitting machines without complicated changes to the knitting elements.

The stitch forming elements can be accommodated in two independently controlled bars of a warp knitting machine and the transfer hook parts can have a slightly prestressed spring area, so that the relative transverse movement of the two bars results in the required transverse movement of the transfer hook due to sliding contact of the loop forming elements. Both knitting elements can also be accommodated in a bar and the transfer hook parts can be longitudinally displaced without tension, wherein the relative movement of the transfer hook parts to the needles via a control rail and the transverse movement of the transfer hook or the coupling of both elements by guide recesses and associated finger-like projections on the shaft.

This allows the application in a warp knitting machine with two independently controlled or only one ingot.

The oscillating movement of the transfer hooks and / or the needles can be effected in each case by subdivided into sections oscillating systems, which is generated via radial cam, axial cam or rocker arm and transmitted from a control rail on the transfer hook.

This simplifies the swing construction for the attachment of the ingots and facilitates the replacement of the transfer hook parts.

The development according to claim 3 allows the trouble-free coupling of the stitch-forming elements.

The development according to claim 4 stabilizes the outward position of the transfer hook.

The development according to claim 5 ensures the transverse movement of the transfer hook.

The development according to claim 7 is suitable for very fine needle designs and avoids friction losses.

• Figur 1 bis 4 das Prinzip der Maschenbildung, und zwar
• Figur 1 die obere Position der Kuliernadel 1 mit dem vorn angeordneten Haken 2;
• Figur 2 die Kulierstellung des Nadelhakens 2 mit dem zu einer neuen Schleife geformten Faden F;
• Figur 3 den Transferhaken 12 in zurückbewegter Stellung und
• Figur 4 die Bildung einer neuen Masche;
• Figuren 5 und 6 die gesteuerte Einwärtsbewegung des nach oben gerichteten Transferhakens 12 in den Nadelschlitz 5 für die Ausführung feinster Nadeln;
• Figur 7 einen Schnitt durch den Einführungsbereich a-a;
• Figur 8 einen Schnitt durch den Haltebereich b-b;
• Figur 9 die Freizügigkeit in der Gestaltung der Hakenzur Brusthöhe;
• Figur 10 bis 12 eine Ausführungsvariante der Einwärtsbewegung des Transferhakens;
• Figur 13 die Vorrichtung in der Strickfunktion "Fang";
• Figur 14 und 15 die Begrenzung des Ansteuerungsweges für die Strickfunktion "Fang";
• Figur 16 den stark vergrößerten Ausschnitt der Prinzip-Darstellung in einer Draufsicht auf die Schlossbahn S;
• Figur 17 bis 20 das Umhängen von Maschen bei Flachstrickmaschinen;
• Figur 21 bis 23 eine besondere Ausbildung des Nadelhakens;
• Figur 24 den Blick auf die Transferhakenlamellen im Bereich der Einführungsfasen;
• Figur 25 die Ausführung der Maschenbildungselemente für Kettenwirkmaschinen mit zwei unabhängig gesteuerten Barren;
• Figur 26 den Schnitt a-a-der Figur 25 durch die Befestigung des Führungsbügels;
• Figur 27 bis 29 die Ausführung einer Kettenwirkmaschine mit in einem Barren angeordneten Maschenbildungselementen, und zwar
• Figur 27 in oberer Position,
• Figur 28 in Kulierposition und
• Figur 29 in Kupplungsposition sowie
• Figur 30 und Figur 31 Vorder- und Seitenansicht eines in Leichtbauweise ausgeführten Schwingsystems für den Antrieb der Transferhakenteile.

Embodiments and application examples of the invention will be described with reference to FIGS. 1 to 31 explained. Show it:

• Figure 1 to 4 the principle of stitch formation, namely
• FIG. 1 the upper position of the styling needle 1 with the hook 2 arranged at the front;
• FIG. 2 the Kulierstellung the needle hook 2 with the zu a new loop shaped thread F;
• FIG. 3 the transfer hook 12 in the moved back position and
• FIG. 4 the formation of a new mesh;
• FIGS. 5 and 6 the controlled inward movement of the upwardly directed transfer hook 12 into the needle slot 5 for the implementation of the finest needles;
• FIG. 7 a section through the introduction area aa;
• FIG. 8 a section through the holding area bb;
• FIG. 9 freedom of movement in the design of the hook at the breast height;
• FIGS. 10 to 12 an embodiment of the inward movement of the transfer hook;
• FIG. 13 the device in the knitting function "catch";
• FIGS. 14 and 15 the limitation of the driving path for the knitting function "catch";
• FIG. 16 the greatly enlarged section of the principle representation in a plan view of the Schlossbahn S;
• FIGS. 17 to 20 the hanging of stitches in flat knitting machines;
• FIGS. 21 to 23 a special design of the needle hook;
• FIG. 24 the view of the transfer hook blades in the area of the insertion chamfers;
• FIG. 25 the execution of the knitting elements for warp knitting machines with two independently controlled bars;
• FIG. 26 the cut aa-the FIG. 25 by the attachment of the guide bracket;
• FIGS. 27 to 29 the execution of a warp knitting machine with arranged in a bar knitting elements, namely
• FIG. 27 in the upper position,
• FIG. 28 in Kulierposition and
• FIG. 29 in coupling position as well
• FIG. 30 and FIG. 31 Front and side view of a lightweight designed oscillating system for driving the Transferhakenteile.

The Fig. 1 shows the needle 1 with needle shaft 3 and needle hook 2, which has already taken a thread F. In operative connection to the needle hook 2, the upwardly directed transfer hook 12 is arranged with its shaft 11. The shaft 3 of the needle 1 has a recess 6 which is connected to the finger-like elevation 16 (FIG. Fig. 2 ) of the transfer hook 12 corresponds. The recess 6 on the shaft of the needle 1 terminates at the top with the rising surface 7 and at the bottom with a partially beveled recess 8. This sliding surface facilitates in cooperation with the bevel 17 of the likewise bevelled finger 18 (FIG. Fig. 2 ) of the transfer hook shaft 11 the mutual engagement. Also, the rising surface 7 in the needle shaft 3 and the bevel 17 in the transfer hook shaft 11 are arranged so that they engage in certain positions of the needle and shaft 11 of the transfer hook 12 in operative connection.

Below the rising surface 7 in the needle shaft 3 is a recess 8. In relative movements of the needle 1 and transfer hook 12 to each other, these two elements (1 and 12) by the amount x moved away from each other. Z shows the vertical movement tolerance of the elements (needle 1 and transfer hook 12) in which the inward position of the transfer hook 12 in the needle face 4 is ensured.

According to Fig. 1 begins the transverse movement of the transfer hook 12 characterized in that the shaft 11 of the transfer hook 12 slides with its increase 16 of the rising surface 7 along and leaves the positive connection with the needle shaft 3. In this case, the coupling of both elements (1 and 12) is released. In order to obtain the outward position of the transfer hook 12 during the retraction of the needle, the recess 6 must be set back by the amount y (corresponding approximately to the needle path). The old stitch is on the transfer hook 12 located in the area in the needle slot 5 (in Fig. 2 visible) of the needle breast 4 is temporarily performed, lateral settlements 10 has.

The Fig. 2 shows the Kulierstellung of the needle hook 2 with the formed into a new loop thread F, while the transfer hook 12 remains in its upper outward position. Also, the recess 6 and the increase 16 no longer interlock. The old stitch is located just above the tee edge A.

The stitch formation thus takes place, as in the precursor embodiments, in four, now in three process steps of the two elements. On the backward movement of the needle 1 with new thread introduced, the return stroke of the transfer hook 12, which releases the mesh held by him. The third phase contains the upward movement steps of the needle 1 and the transfer hook 12, d. H. during the advancement of the needle 1 is a coupling with the transfer hook shaft 11 within the needle channel and then the common feed to the upper position. The coupling within the needle channel has the important advantage of safety when immersing the transfer hook 12 in the needle breast 4 and allows the tolerance compensation of existing deviations in the needle channels.

The advantageous small transverse movement of the transfer hook 12 takes place without control in the needle lock solely by the mutual relative longitudinal movement of the two shaft parts. These are simply structured components in the same shaft thickness without settling and overlapping. The required accuracy can be ensured with today's punching technique, since no bending operation is provided. Typical needle making operations are only necessary in the front part of the hook and the subsequent zashing. The invention enables a small increase in the breast, ie small stitches and greater freedom in the design of needle hook 2 to the chest height.

In the Fig. 3 the transfer hook 12 has moved back, so that the old stitch was dropped over the tee edge A.

Fig. 4 shows a new stitch, which has formed by advancing the needle 1. During the upward movement of the needle 1, the elevation 16 on the transfer hook shaft 11 returned to the recess 6 in the needle shaft 3. This coupling action causes the inward transverse movement of the transfer hook 12 into the needle slot 5. Upon further forward movement of the needle 1, both elements move together into the upper one Position of the Fig. 1 ,

When coupling, it is important at high speeds to harmonize the incoming needle movement with a transfer hook movement just beginning.

In the FIGS. 1 to 4 located in the rear of the needle shaft 3 as well as in the rear of the shaft 11 of the transfer hook 12 is not shown control foot. The last stitch formed is held on the needle face 4 in the holding area of the transfer hook 12 at the tee edge A of the needle cylinder or bed. After a new thread F has been introduced into the needle hook 2, the retraction of the needle 1 begins. In this case, a transverse movement of the transfer hook 12 occurs, which is lifted out of the needle breast 4, so that the needle hook 2 can be passed smoothly on the transfer hook 12. The needle shaft 3 and the shaft 11 of the transfer hook 12 have to the channel bottom K ( Fig. 3 ) parallel bearing surfaces, which complement each other positively in the coupled state. In the front area these are offset by the dimension x of the desired transverse movement of the transfer hook 12.

The FIGS. 5 and 6 illustrate - again enlarged 2 times - the important advantage of the oblique transverse movement of the transfer hook 12 in the needle slot 5, which is especially in fine needle designs of Bedeufung. This is located with its holding area b - b ( Fig. 6 ) in a recess 9 behind the needle breast 4. In known embodiments ( DE 10152856 C1 and DE 10211231 C1 ) is a slight inclination of the transfer hook 12 is required for the transition from the lead to the holding section, which slightly widen the mesh. The embodiment of the invention avoids this disadvantage and creates a smooth transition. The shaft 11 opens in full strength into the holding region b - b of the transfer hook 12, so that the centering of the tip can easily be carried out for the introduction region a - a. The mesh passes without sliding resistance on the holding area b - b. The transverse movement of the transfer hook 12 obliquely to the needle 1 is self-cleaning in the needle slot 5. In contrast to the transverse to the needle 1 transverse movement in a known device ( DE 2909963 C2 ) can not set and build fluff flight. According to Fig. 7 , which shows a section through the insertion area a - a, as previously suggested, the zipper width can be extended beyond the shaft thickness.

When the transfer hook 12 is lifted out of the chest area on the respective hook height during the return stroke of the needle 1, an additional smooth transition from the insertion section of the transfer hook 12 immersed in the chest to the holding section opens, without having to accept the previously small mesh extension. In addition, this is another advantage, here the riser surfaces are easy to produce. There is only a short open slot in the needle necessary, which opens into a small recess behind the chest. Therein is the holding section of the transfer hook 12 when its introduction section is pivoted into the needle breast 4. The inward movement of the transfer hook 12 occurs within the lateral guidance of the needle channel, while the tolerance compensation in the transverse direction is ensured by the coupling process during advancement of the needle 1.

The Fig. 8 shows a section through the holding area b - b.

With the Fig. 9 the freedom of movement in the design of the hook to chest height is illustrated.

In the Fig.10 to 12 It is shown that the inward movement of the transfer hook 12 can also be brought about by a skid 19a on the needle lock. This results analogously Fig. 1 to 4 for the needle hook 2 and the transfer hook 12 a parallel shaft with corresponding recess 6 and elevation 16, and the corresponding with each other increase surfaces 7 and 17. The coupling is done by means of a projection 14 in alignment with the transfer hook 12 analogous to the finger 18 (FIG. Fig. 2 ), which engages in a groove 15 on the end face of the recess 9 and additionally assumes the tolerance compensation in the transverse direction of the transfer hook 12 when immersed in the slot 5 in the needle breast 4.

The Fig. 13 concerns the knitting function "catch". In this case, after a new thread F has been inserted into the needle hook 2, by the control foot of the transfer hook 12, not shown, as a result of the coupling both knitting elements (needle 1 and transfer hook 12) so far behind the tee A moved back that the above the transfer hook 12th From this loop slides, resulting in the subsequent stitch formation process accordingly Fig. 1 to 4 the new loop and the old stitch in the needle hook 2 and then get on the transfer hook 12. The choice of which needles to make when passing through a lock "catch" happens with known technology by control feet different height, which are assigned in the needle locks cams.

For the realization of Fangmaschenmusterungen the invention has further advantages. In contrast to the now common technology makes the styling needle always the same movement. If a tuck stitch occurs, after insertion of the new thread and before the backward movement of the styling needle, a small return pulse is applied to the control foot of the transfer hook 12, whereby both elements are frictionally guided around the transfer hook length to the rear. The previous stitch thus passes from the transfer hook 12 back into the neck of the needle to the newly introduced thread, which is then copied.

The invention also makes it possible to control individual needles in a freely programmable manner. In addition, actuation magnets come with extremely short. Response time to the application, because the time cycle within a needle pitch at the high speeds is minimal, so that very short control movements are a prerequisite.

The FIGS. 14 and 15 show how the driving path can be limited to the order of a millimeter. According to Fig. 14 be after the Austriebsstellung ( Fig. 1 or Figure 10 ) with inserted new thread F all needles in the machine lock on the not shown control foot of the transfer hook 12 by the amount m back. The old stitches are then still in the front region of the transfer hook, so that the passage of a new thread for stitch formation after the sector f ( Fig. 16 ) is possible. However, if the snap function is to be executed, the controlled path n in the size range of one millimeter is sufficient for the execution of this pattern operation ( Figure 15 ).

The Fig. 16 shows the greatly enlarged section principle representation in a plan view of the Schloßbahn s. Within the sector f, the catch function runs in the direction of the arrow when the control feet pass. When passing the control feet in the lock of the machine, an area is provided before the return stroke of the needle, in which, for example, electronically controlled according to a design pattern, the required return pulses on certain needles Fangmaschen arise. If no Fangmasche arise, the flow remains in the Fig. 10 shown position. With only mechanically actuated needle selection, the coupled retraction of both mesh-forming elements takes place from the in Fig. 10 shown position in the Figure 13 shown position, with electronically controlled needle selection first for all needles of the in Fig. 10 shown position in the Figure 14 shown position and then pulse controlled individual needles of the in Fig. 14 shown position in the Figure 15 shown position.

In the Fig. 17 to 20 the process steps for the transfer of stitches in flat knitting machines are explained. The stitch formation according to the invention can likewise be advantageously used for flat knitting. There are - analogous to the cylinder and the dial of the circular knitting machines - two straight long needle beds, each with a needle 1 and a transfer hook 12 at an angle of 100 degrees inclined, so that in the gaps each a needle of the other bed intersect. For longitudinal bed offset the needles 1 must be withdrawn. The last formed stitches are suspended on the transfer hook 12. The needle channels of both beds are exactly opposite each other during the transfer process.

With this technology, many different patterning effects can be achieved by offsetting the needle beds in the longitudinal direction and then transferring stitches to the other side of the bed. The capping itself is a complex process that requires complicated latch needles with side notches and spring elements to be taken over by the ones Needles are pierced so that the mesh is transferred to the other side of the bed during the subsequent withdrawal of the donating needle. In contrast, the suspension can now in principle be carried out without changing the needles 1 used for knitting, when the transfer hook 12, as in a known device of this type ( DE 2909963 C2 is described, consists of two parallel slats.

In Fig. 17 is the right transfer hooks 12 with its slats moved forward so far that the loop to be transferred hanging approximately in the middle of the free opening between the two needle beds.

In Fig. 18 the taking over left needle 1 with its hook 2 has advanced at standstill of the right transfer hook 12, so that they the transferring stitch and the lamellae 11 by means of moon-shaped insertion chamfers 20 (corresponding Fig. 24 ) penetrates and widens.

In Fig. 19 the right transfer hook 12 is withdrawn and the stitch to be transferred is thus on the left side of the bed.

In the Fig. 20 the needle beds for the knitting operation have been brought into their basic position "needles to gaps". A new thread is inserted in the left needle hook 2 and is then pulled upon withdrawal of the left needle 1 by the stitches held by the left transfer hook 12.

The Fig. 21 to 23 show a peculiarity of the needle hook 2. The lateral displacement of the needle beds over several needle pitches creates a considerable traction in the transverse direction of the stitches, so that the receiving needle can bump with its head on thread sections, instead of hitting the mesh opening.

A shoehorn-like approach 21 on the needle hook 2 finds just below the transfer hook 12 sure the mesh at this point and the needle head 2 prepares for the transfer process the way.

According to Fig. 21 an additional diameter reduction 22 is provided on the still unbent front part of the needle hook 2, so that it has flat shape after the subsequent pressing in the transverse direction of the needle 1 half the hook thickness.

Fig. 22 shows the pressed reduction 22, which is pressed in the transverse direction of the needle 1 to the width of the needle hook 2 in alignment with the later bent inner course of the hook 2, so that after the hook bending corresponds to the 180 degrees bent back front part of the hook thickness and in Fig. 23 shown hook design arises.

Fig. 24 shows the top view of the back of the slats in the region of the needle slot and the subsequent extension to the channel width in the recess 9 (FIG. FIGS. 5 and 9 ).

The FIGS. 25 to 29 are exemplary embodiments of the stitch forming elements according to the invention for warp knitting machines. These are there in rows in the rear shaft area - clamped in so-called bars - over whose front edge they protrude in the desired fineness corresponding pitches. The problem with this is that the free shaft parts of both ingots have to be exactly aligned with each other over their considerable length. Various influences, but especially the thermal expansion in the machine play an important role. It is therefore necessary to bring the interacting elements into each other at the important points, as for example with the in the Needle slot engaging tongue-like approach has been proposed.

In the case of very fine needle designs, a small guide bracket 24 encompassing the shaft is a friction-favorable alternative because the two shaft designs have the same thickness. This can be analogous to the tongue attachment in knitting needles eg attach to the shaft 11 of the transfer hook 12 in which two in alignment with the mounting hole 25 against each other acting punch journal stubs press as in the known tongue bearing from the side panels in the mounting hole 25. The Fig. 26 illustrates the attachment in a section a - a der Fig. 25 ,

The Fig. 25 is a schematic representation of the arrangement of both mesh forming elements in separate needle bar. These are pivotally mounted about transverse to the needle elements arranged at a greater distance axes of rotation, so that the elements on a circular path in the longitudinal direction corresponding to Figure 10 move to13. The needles 1 are individually stretched in channels of the needle bar, not shown, while the complementary slide parts, cast in sets of the same division in the holding assembly 23, are housed in the second, also not shown ingots together.

In the Fig. 25 the protruding from the holding assembly 23 shaft is formed in its continuation as a spring 26 which is slightly biased so that in this relative position of the two bars to each other the transfer hook 12 in the needle breast 4 Fig. 25 ), while in the other positions of the transfer hook 12 by sliding the elevation 16 on the rising surface 7 on the upper edge 3 of the needle 1 retains its outward position.

In the Fig. 27 to 29 It is shown how with only one bar arrangement, the stitch formation is possible. The clamped in the rear shaft portion 3 in channels of the billets needles 1 have a offset 28, so that in this region of the clamping cover 29, a gap is formed, in which the rear shaft portion 11 of the transfer hook 12 can be inserted longitudinally displaced tension. In order to avoid the occurrence of frictional heat in the case of the high vibration sequences, it is sufficient if the transfer hook parts joined to a not-shown bandage have the extended shaft part 11 only at the outer boundaries. The lateral guidance of both elements 1, 12 towards each other in the stitch formation area takes over the known groove - And spring connection or the illustrated U-guide. The outward movement of the transfer hook 12 happens after Fig. 11 For the relative movement of the transfer hook 12 to the needle hook 2, a control rail 27 is provided over the entire bar length, which engages in the groove 11 corresponding to the transfer hook 12 in the groove. The coupling of both knitting elements takes place, as in 10 and 11 represented by means of the projection 14 on the transfer hook 12, which engages in a groove 15 on the end face of the recess 9.

The FIGS. 30 and 31 are schematic representations of the arrangement of the control rail 27. It can be dispensed with the previously heavy swinging construction for the attachment of the bars. It is sufficient to run in a lightweight design vibration system with low mass movements. The control rail 27 can be divided into sections that can be easily removed to replace the transfer hook parts.

A guide beam 30 arranged parallel to the entire billet length of the needles contains guide elements, for example at suitable section distances, e.g. Linear Bushings 31. U-shaped oscillating elements as rail supports 32, which have a fastening platform 34 for the control rail 27 at the top and are configured below for the vibration drive, can be moved up and down with the bolts 33 fastened therein. The oscillating elements 32 are laterally connected to an axle 35, which can be used for the vibration drive. Also in section distances are mounted on the guide support 30 side bearing plates 38 for the vibration drive. The oscillating system can also be used for the movement of the needles 1.

1. 1) Über die in den Seitenteilen 38 gelagerte Welle 39 (Achse A), deren Radialnocken 40,die auf den Verbindungsachsen 35 der Schwingelemente 32 befindlichen Übertragungselementen 42 vertikal bewegen. Eine Druckfeder 36 sorgt dabei für die Anlage der Übertragungselemente 42 an den Radialnocken 40.
2. 2) Über achsial wirkende Nocken 41, die auf einer in Längsrichtung schwingenden Welle 39 befestigt sind und auf unten im Schienenträger 32 gelagerten Übertragungselemente 42 wirken.
3. 3) Über eine seitlich parallel des Führungsträgers 30 angeordnete, minimale Drehschwingungen ausführende Welle (Achse-B), deren Übertragungshebel 44 die Verbindungsachsen 35 vertikal schwingend bewegen.

The vibration generation can be carried out according to the invention 3 times different:

1. 1) via the mounted in the side members 38 shaft 39 (axis A), the radial cam 40, the transmission elements 42 located on the connecting axes 35 of the oscillating elements 32 move vertically. A compression spring 36 ensures the installation of the transmission elements 42 to the radial cam 40th
2. 2) Via axially acting cams 41 which are mounted on a longitudinally oscillating shaft 39 and acting on the bottom of the rail support 32 mounted transmission elements 42.
3. 3) via a laterally parallel to the guide support 30 arranged, minimal torsional vibrations exporting shaft (axis B), the transmission lever 44, the connecting axes 35 move vertically swinging.

Claims (9)

1. Stitch-forming arrangement for a knitting machine or warp knitting machine for machine knitting with at least one continuous thread,
   with a needle (1), which forms a first stitch-forming element and has a blade (3) with a needle breast (4) and with a needle hook (2), wherein a needle slot (5) is configured in the needle breast (4) and a recess (9) is configured behind the needle breast (4) and a depression (6) is configured on the blade (3), and with a transfer hook (12), which forms a second stitch-forming element and is supported by a blade (11) with a finger-shaped raised portion (16), which can penetrate into the depression (6), so that the depression (6) and the raised portion (16) serve as coupling elements (6,16), wherein the transfer hook (12) is movable in the longitudinal and the transverse direction and can be inserted into the needle slot (5),
   wherein at their blade ends the transfer hook (12) and the needle (1) have control butts engaging into cam channels, by means of which an outward transverse movement and an inward transverse movement of the transfer hook (12) can be effected during the relative longitudinal movement of the transfer hook (12) and the needle (1),
   wherein as a result of the coupling elements (6,16), which positively connect the needle (1) and the transfer hook (1,12) and have sloping sections (7,17, 8, 18), the inward transverse movement of the upwardly directed transfer hook (12) within the needle groove or below the knock-over comb can be controlled during the control movement such that after the needle (1) leaves the sinking position and the transfer hook (12) releases the old stitches, the needle (1) and the transfer hook (12) can be moved jointly forward into their upper position in such a way that the control butt of the transfer hook (12) intercepts the coupling stroke of the needle (1) through a synchronous ascent of the machine cam, and
   wherein the transfer hook has a holding region (b-b), which can be located in the recess (9), and an insertion region (a-a), its point being centrally offset in order to penetrate into the needle slot (5), and wherein the blade (11) runs into the holding region (b-b) at its full thickness.
2. Stitch-forming arrangement according to claim 1, characterised in that the recess (9) is provided behind the breast (4) of the needle (1) and serves to receive the holding region (b-b) of the transfer hook (12) at full blade thickness, whereas the front transfer hook (12) tapered to a point penetrates into the needle slot (5), from which it can be lifted in a controlled manner.
3. Stitch-forming arrangement according to claim 1, characterised in that a finger-shaped attachment (14) is provided at the end opposite the point of the transfer hook (12), that a groove (15) is provided in the depression (6) provided in the needle blade (3), and that the attachment (14) can be coupled to the groove (15) in order to form a coupling between the needle (1) and the transfer hook (12).
4. Stitch-forming arrangement according to claim 1, characterised in that the depression in the needle blade (3) is set back by a dimension y to such an extent that in the decoupled state the transfer hook (12) maintains its outward position during its movement relative to the needle (1).
5. Stitch-forming arrangement according to claim 1, characterised in that the transfer hook (12) has a spring region (26) arranged outside a holding brace (23), to which it is connected.
6. Stitch-forming arrangement according to claim 5, characterised in that the spring region (26) is slightly biased.
7. Stitch-forming arrangement according to claim 1, characterised in that the blade (11) has a fastening hole (25), that a U-shaped guide piece (24) is arranged on the blade (11) of the transfer hook (12), and that from the guide piece (24) two opposing pin ends are pressed into the fastening hole (25).
8. Stitch-forming arrangement according to claim 1, characterised in that in furthest forward position the transfer hook (12) is spaced vertically from the hook (2) of the needle (I).
9. Stitch-forming arrangement according to claim 1, characterised in that a guide depression and a finger-like projection are provided on the butt (3) and the butt (11).

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