EP2843095A1 - Flat knitting machine having a yarn guide moving perpendicular to the pin bed - Google Patents

Abstract

A flat knitting machine comprising at least one needle bed and a carriage (1) movable over the needle bed and one or more yarn guides movable along at least one yarn guide rail (4), the yarn guide (s) being driven independently of the carriage (1) and also horizontally Direction (5), (6) are movable transversely to the longitudinal direction of the at least one needle bed limited.

Description

The invention relates to a flat knitting machine with at least one needle bed and a carriage movable over the needle bed and one or more yarn guides, which are movable along at least one yarn guide rail, wherein the yarn guide or are driven independently of the carriage.

Compared with entrainment of the yarn guide by the carriage of the flat knitting machine opens a self-sufficient drive the yarn guide more pattern options for the knitted fabric and saving sled strokes, which are often necessary alone for correct positioning of the yarn guide in driven by the carriage yarn guides and increase the total knitting time.

The yarn guides are not only movable along a yarn guide rail, but can also be raised by a linear movement or by pivoting out of the needle chamber, that is, be switched to a non-active position. In the horizontal direction, however, the thread guides known machines can be moved so far only in Nadelbettenlängsrichtung and therefore perform only in a functional level either thread for a bond (weft, chain) or thread to knitting needles.

The object of the present invention is to further develop a flat knitting machine in such a way that threads can be moved in several directions with the thread guide (s), thereby increasing the pattern variety of the machine.

The object is achieved by a flat knitting machine having at least one needle bed and a carriage movable over the needle bed and one or more yarn guides which are movable along at least one yarn guide rail, wherein the yarn guide or are driven independently of the carriage, which is characterized in that At least one yarn guide is also limited in the horizontal direction transversely to the longitudinal direction of the at least one needle bed movable.

Due to this greater freedom of movement of the thread guide or new Musterungsmöglichkeiten on a flat knitting machine can be achieved that were previously produced only with special machines such as warp knitting machines or cotton machines.

Thus, with the at least one thread guide in expelled needles of the at least one needle bed in a course series warp, weft, plating or pile threads and any combinations thereof can be inserted. It is also possible, with the at least one yarn guide threads meander over several rows of knitting into expelled needles of at least one needle bed insert, that is to produce crosshairs.

Furthermore, with the at least one thread guide, movements of the thread guide in the longitudinal direction of the at least one needle bed and, transversely thereto, one or more expelled needles can be partially or completely looped around with a thread.

It is advantageous if the at least one thread guide is movable in both directions transversely to the needle bed longitudinal direction. In addition, even with the flat knitting machine according to the invention, the at least one thread guide can be adjustable in height, i. be brought out of the needle room in an inactive position.

The lateral movement of the thread guide or can be done in different ways. In a first embodiment of the flat knitting machine, the at least one yarn guide rail is pivotally mounted about a horizontal axis. This means that all yarn guides guided on the rail can be swiveled simultaneously. The thread guide rail can move similar to the barre of a warp knitting machine combined into blocks thread guide together.

Alternatively or additionally, a Fadenleitorgan the at least one yarn guide can be mounted eccentrically rotatable on a longitudinally along a yarn guide rail movable yarn guide box. This also makes it possible to realize a movement of the thread guide or, more precisely, its tip with the Fadenleitorgan transversely to the needle bed longitudinal direction. At the same time, the thread guide rail is pivotable, so there is an additional degree of freedom for the movement of the thread guide or.

In this case, the Fadenleitorgan be secured in a conventional manner via a cranked Fadenführerarm on the thread guide box, but now the Fadenführerarm is arranged pivotably about a vertical axis on the thread guide box.

The thread guide can be a nut or a tube. In confined spaces and when different threads are to be inserted into adjacent needles, tubes are advantageous. In addition, a thread brake or clamp can be arranged on the at least one thread guide.

If the flat knitting machine also has at least one clamping-cutting device that can be moved along a yarn guide rail, individual yarn guides can be equipped with a thread blowing device and blow in specific thread material together with the clamping cutting device, for example for feeding functional pockets in the knitted fabric.

The invention also relates to the use of a flat knitting machine according to the invention for producing a knitted fabric having warp knitted bindings, with selectively or completely plated intarsia patterns or with standing threads, by partially or completely expelling needles of the at least one needle bed with a warp thread, a plating thread or a standing thread with the at least one thread guide be entwined. Hereinafter, various applications of a knitting machine according to the invention will be described in more detail with reference to the drawing.

Fig. 1a, b

schematische Stirnansichten eines Schlittens einer Flachstrickmaschine mit Fadenführerschienen;

Fig. 2

eine schematische Ansicht des Umwickelns einer Stricknadel mit einem Faden durch einen quer zur Nadelbettlängsrichtung beweglichen Fadenführer;

Fig. 3

ein Diagramm der Bewegung eines Fadenführers und einen Maschenverlauf zur Herstellung einer offenen Trikotbindung;

Fig. 4

eine Diagramm der Bewegung eines Fadenführers und einen Maschenverlauf zur Herstellung einer geschlossenen Trikotbindung;

Fig. 5a - e

schematische Darstellungen verschiedener Varianten der Fadeneinlage.

Show it:

Fig. 1a, b

schematic end views of a carriage of a flat knitting machine with yarn guide rails;

Fig. 2

a schematic view of the wrapping a knitting needle with a thread through a transverse to the needle bed longitudinal direction yarn guide;

Fig. 3

a diagram of the movement of a yarn guide and a stitch course for the production of an open tricot binding;

Fig. 4

a diagram of the movement of a yarn guide and a stitch course for producing a closed tricot binding;

Fig. 5a - e

schematic representations of different variants of the thread insert.

The FIGS. 1a, b show a carriage 1 of an otherwise not shown flat knitting machine with lock systems 2, 3, which are movable via a not shown here front and rear needle bed of the flat knitting machine. Between the carriage 1 and the Lock systems 2, 3 are in Fig. 1a arranged in a row next to each other a plurality of yarn guide rails 4, which are all pivotable about a longitudinal axis L in the direction of the double arrow 5. As a result, a corresponding pivoting movement of arranged on the yarn guide rails 4, not shown here thread guides transverse to the direction of movement of the carriage 1 is possible.

In addition to a pivoting movement, the yarn guide rails 4 can be moved laterally in the direction of the double arrow 6. Also, this linear movement is transmitted to the movable in the thread guide rails 4 yarn guide.

In the Fig. 1b The configuration shown differs from that shown Fig. 1a in that here the thread guide rails 4 'are arranged on a circular arc. The thread guide rails 4 'are pivotable about longitudinal axes L' in the direction of the double arrow 5 'and horizontally displaceable in the direction of the double arrow 6'.

Fig. 2 shows a knitting needle 10 and a yarn guide 11, of which essentially only one Fadenleitorgan 12 is shown in the form of a Fadenführernüsschen. The Fadenleitorgan 12 has a needle shaft 10.1 of the needle 10 between a needle hook 10.2 and a needle tongue 10.3 for closing the needle hook 10.2 looped with a thread 13. This is only possible if the Fadenleitorgan 12 is movable not only in the longitudinal direction of a needle bed, not shown here, in which the needle 10 is slidably mounted in the direction of the double arrow 14, wherein the longitudinal direction of the needle bed perpendicular to the plane.

The thread guide member 12 must also be movable transversely to the longitudinal direction of the needle bed in the direction of the double arrow 15. The yarn guide 11 has its own, not shown here drive, so that its movement is independent of a carriage of the flat knitting machine whose knitting systems cause the movements of the needle 10 in the direction of the double arrow 14 via cam curves. A multiple looping around the needle 10 with the thread 13 is possible. The yarn guide 11 is thus particularly suitable for inserting additional threads such as plating threads, warp or weft threads and the like in a needle 10th

In FIG. 3 is the formation of a so-called open tricot binding clarified. Such bonds are previously produced only on warp knitting machines. Trikotbindungen a knit or knitted fabric can be given a special elasticity.

The figure shows on the left side from bottom to top the movement of a yarn guide FF1, which is symbolized as an arrow, via needles AI of a front needle bed V and via needles ai a rear needle bed H of a flat knitting machine, In line 1, the yarn guide FF1 sets a thread 20 from left to right in the hook of the needle C of the front needle bed V. Then it is moved to behind the needle D in the direction of the needle bed V and places in line 2 from right to left the thread 20 in the hook of the needle D.

Subsequently, the yarn guide FF1 is moved back to before the needle C. Thereafter, the steps of rows 1 and 2 are repeated in the following rows. Since the thread guide FF1 not only in Can be moved longitudinally of the needle beds V, H, but also across it, he can put the thread 20 around the shaft of the needles C and D, so that a secure thread insert is ensured, as on the right side of the Fig. 2 is clarified, showing the thread course. The thread 20 is a warp thread, which gives the fabric by its staggered integration in both directions a high elasticity. With the other needles of the two needle beds V, H can be made with one or more other threads a basic knit in any binding.

Similarly, a closed tricot weave can be made as in Fig. 4 is clarified. The yarn guide FF1 completely wraps around the needles C and D here.

The production of a tricot binding is only one example of a possible application of a flat knitting machine according to the invention. Instead of warp threads and weft threads, pile threads or Plattierfaden can be inserted.

In Fig. 5a is a first variant of the deposit of two identical or different threads F1, F2 shown in a particular knit area, each with a thread guide. The first row shows the basic position of two thread guides FF1, FF2 longitudinally displaceable and transversely movable in a thread guide rail FS before the insertion of a thread into driven needles 33, 34. In the second row, the thread guides FF1, FF2 have been moved to the right in the thread guide rail FS and thus the threads F1, F2 inserted in the needles 33, 34. Subsequently, the inserted threads F1, F2 are emulated, as shown in row 3.

In the second variant, the in Fig. 5b is shown, three identical or different threads F1, F2, F3 with three different thread guides FF1, FF2, FF3 inserted completely into all needles 38. For this purpose, the needles 38 are expelled. In order to move the thread between two adjacent needles 38, the thread guides FF1, FF2, FF3 are formed in this variant as a tube thread guide. In line 2, the yarn guides FF1, FF2, FF3 are first moved to the right and then to the rear to be able to securely insert the three different threads F1, F2, F3 in the hooks of the needles 38 can. Subsequently, the inserted threads F1 to F3 are knitted with a knitting system.

Fig. 5c shows a thread insert, in which two thread guides FF1, FF2 are guided in a first yarn guide rail FS1. In addition, a second yarn guide rail FS2 is provided, in which a further yarn guide FF3 is guided, which inserts a thread in all the needles 39. As shown in the second row, first the yarn guides FF1, FF2 insert yarns F1, F2 into some of the needles. Subsequently, the thread insert takes place in all needles 39 through the thread guide FF3. Finally, all threads are knitted in row 4 with a common knitting system.

In Fig. 5d is a further variant of a thread insert shown with a flat knitting machine according to the invention. There are three different thread guide rails FS1, FS2 and FS3 are provided here.

In the rail FS1 two yarn guides FF1 and FF2 are slidably mounted. In line 2, in a movement to the right, they insert in each case a thread F1 and F2 into driven needles 45, 46. Subsequently, these needles 45, 46 are emulated with a first knitting system. Thereafter, in row 3, other groups of needles 47, 48 are expelled and a thread F3 is inserted into these needles 47, 48 with a yarn guide FF3 guided in the rail FS2 and is imaged with a second knitting system. In the fourth row, further groups of needles 49, 50 are driven out, and another thread F4 is inserted into these needles with a fourth thread guide FF4 and emulated with another knitting system. Row 5 shows the final state after all the pins have been put together.

At the in Fig. 5e variant shown also three thread guide rails FS1, FS2, FS3 and four thread guides FF1, FF2, FF3 and FF4 are provided. All needles 51 are expelled. Then in line 2, the yarn guides FF1 and FF2 are moved to the right to insert a thread F1 or F2 in all the needles 51. Subsequently, additional threads F3 or F4 are inserted into selected needles (intarsia color fields) in the third row with additional thread guides FF3 and FF4. Subsequently, all the needles are combined with a knitting system, resulting in the image shown in row 4. The result is a real intarsia knit, which is plated in some areas.

Claims (12)

Flat knitting machine with at least one needle bed (V, H) and a carriage (1) movable over the needle bed and one or more yarn guides (11, FF1-FF4) which are movable along at least one yarn guide rail (4, 4 ', FS1-FS3) wherein the yarn guide or yarn guides (11, FF1-FF4) are driven independently of the carriage (1), characterized in that the at least one yarn guide (11, FF1 - FF4) also in the horizontal direction transversely to the longitudinal direction of the at least one needle bed (V , H) is limited movable. Flat knitting machine according to claim 1, characterized in that the at least one yarn guide (11, FF1 - FF4) is movable in both directions transversely to the needle bed longitudinal direction. Flat knitting machine according to claim 1 or 2, characterized in that the at least one yarn guide rail (4, 4 ', FS1 - FS3) about a horizontal axis (L, L') is pivotally mounted. Flat knitting machine according to one of the preceding claims, characterized in that the at least one thread guide rail (4, 4 ', FS1 - FS3) is displaceable transversely to its longitudinal direction. Flat knitting machine according to one of the preceding claims, characterized in that a Fadenleitorgan (12) of the at least one yarn guide (11, FF1 - FF4) is mounted eccentrically rotatable on a along a yarn guide rail (4, 4 ', FS1 - FS3) movable yarn guide box. Flat knitting machine according to claim 4, characterized in that the Fadenleitorgan (12) is attached via a bent Fadenführerarm on the thread guide box, wherein the Fadenführerarm is arranged pivotably about a vertical axis on the thread guide box. Flat knitting machine according to claim 4 or 5, characterized in that the Fadenleitorgan (12) is a Nüsschen or a tube. Flat knitting machine according to one of the preceding claims, characterized in that it comprises at least one along a thread guide rail (4, 4 ', FS1 - FS3) movable clamping-cutting device. Flat knitting machine according to one of the preceding claims, characterized in that with the at least one yarn guide (11, FF1 - FF4) in expelled needles (10, C, D, 33, 34, 38, 39, 45, 46, 47, 48, 49 , 50) of the at least one needle bed (V, H) warp, Weft, plating or pile threads (13, 20) or any combination thereof can be inserted. Flat knitting machine according to one of the preceding claims, characterized in that with the at least one thread guide (11, FF1 - FF4) threads (F1 - F4) meandering over several rows of knitting into driven-out needles (10, C, D, 33, 34, 38, 39, 45-50) of the at least one needle bed (V, H) can be inserted. Flat knitting machine according to one of the preceding claims, characterized in that with the at least one yarn guide (11, FF1 - FF4) by movements of the yarn guide (11, FF1 - FF4) in the longitudinal direction of the at least one needle bed (V, H) and transversely thereto one or several expelled needles (10, C, D, 33, 34, 38, 39, 45 - 50) partially or completely with a thread (13, 20, F1 - F4) are wrapped. Use of a flat knitting machine according to one of Claims 1 to 10 for producing a knit with warp knitted bindings, with selectively or completely plated intarsia patterns or with standing threads, by means of needles (10, C, D, 33) driven out with the at least one thread guide (11, FF1 - FF4) , 34, 38, 39, 45 - 50) of the at least one needle bed (V, H) are partially or completely looped with a warp thread, a plating thread or a standing thread.

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