DE29811470U1 - Warp knitting machine - Google Patents

Description

DR.-ING. ULRICH KNOBLAUCH DR.-ING. ANDREAS KNOBLAUCH _S o3 ₂ o frankfurt/main 25 June 1998

PATENT ATTORNEYS Kühhornshofweg 10 UK/B

TELEPHONE: (069) 9 56 20 30 FAX: (069) 56 3002

VAT ID: DE 112012149

MT 260 GM

Karl Mayer Textilmaschinenfabrik GmbH D-63179 Obertshausen

Warp knitting machine

The invention relates to a warp knitting machine with at least one guide bar which is supported by guide levers which can be pivoted back and forth and whose pivot axes can be adjusted together relative to the machine frame in order to change the basic position of the guide needles relative to the knitting needles.

Such a warp knitting machine is known from DE-PS 959 939 for a warp knitting machine with a single guide bar. The guide levers can be pivoted both transversely and lengthwise to the knitting needle head around bearings consisting of a ball socket and ball pin. These bearings are each supported by an intermediate piece that is carried on an adjustment shaft mounted in the machine frame.

This adjustment shaft can be pivoted by approximately 45° using an adjustment lever, meaning that the height of the laying needles can be adjusted from one location.

DRESDNER BANK. FRANKFURT/M. 2300 3O800 (bank code 5008OOOO) · S.W.I.F.T.-CODE DRES DE FF POSTBANK FRANKFURT/M. 34 25-605 (bank code 5OO1OO6O)

DD-PS 44 092 shows a warp knitting machine in which the guide bars are attached to the coupling rod of a four-bar linkage with the interposition of axial guides, whereby one of the joints can be moved relative to the machine frame by means of an eccentric disc. By turning the eccentric disc by about 180°, the guide needles can be brought into a position that is favorable for drawing in the warp thread.

The invention is based on the object of specifying a warp knitting machine of the type described at the beginning, in which the change in the basic position of the guide needles relative to the knitting needles can be carried out in a construction that is particularly advantageous in practice.

This object is achieved according to the invention in that the laying levers are connected in a rotationally fixed manner to a common pivot shaft and carry at least one laying bar 0 with the interposition of axial guides and that the pivot shaft is mounted in the machine frame with the interposition of rotationally adjustable eccentric bushings.

With this design, the desired adjustment of the laying needles is carried out by a swivel shaft, which can be common to all laying bars. Ball pin bearings are not required because the axial offset of the laying bars is absorbed by the axial guides. The basic position of the laying needles, for example in the knock-off position of the knitting needles, is changed by simply turning the eccentric bushings, which are located in easily accessible places.

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It is advantageous that the eccentric bushing can be rotated and clamped on the swivel shaft. Rotating and clamping are easy to achieve in terms of construction.

It is also recommended that the eccentric bushing is slotted and surrounded by a slotted clamping ring. Since the clamping ring surrounds the eccentric bushing, it is easily accessible.

Preferably, an adjustment ring with a marking is connected to the eccentric bushing in a rotationally fixed manner. The respective angle of rotation position can therefore be read and adjusted repeatedly.

A particular simplification is achieved by the fact that the clamping ring forms the adjustment ring.

In a preferred embodiment, it is ensured that the swivel drive is carried out by means of a tappet 0 via a joint eye at the end of the laying lever opposite the at least one laying bar. The joint eye acts as a pivot point for the laying lever when the eccentric bush is adjusted, but changes its position slightly in the process. This is permissible with a tappet drive.

The invention is described in more detail below using a preferred embodiment shown in the drawing. 30

Fig. 1 shows a part of the warp knitting machine that is essential to the invention in a three-dimensional representation and

Fig. 2 shows a cross section through this part of the chain

5 knitting machine.

· W

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From the working area 1 of the warp knitting machine, only the knitting needles 2 and the laying needles 3 are shown. The laying needles are open needles and are carried by laying bars 4, 5 and 6. The latter are connected to laying levers 9 with the interposition of axial guides 7 and 8. These are clamped onto a swivel shaft. The swivel drive is carried out via a tappet 11 that protrudes from a machine bed (not shown), in which it is driven, for example, by an eccentric disk enclosed by a bearing ring. The tappet acts on a joint eye 12 that is arranged at the end 13 of the laying lever 9, which is opposite the laying bars 4 to 6.

In this design, the laying needles 3 perform a pivoting movement in which they are moved from the laying position to the overlay position and back again. In order to change the basic position of the laying needles, which they assume when the knock-off position is reached in the working cycle, the following measures are provided:

The pivot shaft 10 carries an eccentric bushing 14 which has a slot 15. The eccentric bushing 14 is surrounded over part of its axial length by a clamping ring 16 which has a slot 17 and clamping screws. In addition, the clamping ring is connected to the eccentric bushing 14 in a rotationally fixed manner and carries a marking 19 in the form of an angle scale which interacts with a pointer 20 on the machine frame 21. The part of the eccentric bushing 14 not surrounded by the clamping ring 16 is rotatably mounted in the central wall 22 of the machine frame 21.
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To give the guide needles 3 a new position, the warp knitting machine is moved to its knock-off position. The clamping ring 16 is then loosened and turned to a new position, which can be read off by the marking 19. The pivot shaft 10 is thereby moved accordingly. The clamping screws 17 are then tightened again. In this way, the eccentric bushing 14 is fastened to the pivot shaft 10. The warp knitting machine then works with the newly adjusted position of the guide needles 3.

Claims (6)

MT 2 60 GM Protection claims 1. Warp knitting machine with at least one guide bar, which is supported by guide levers that can be pivoted back and forth, whose pivot axes can be adjusted together relative to the machine frame in order to change the basic position of the guide needles relative to the knitting needles, characterized in that the guide levers (9) are connected in a rotationally fixed manner to a common pivot shaft (10) and which support at least one guide bar (4, 5, 6) with the interposition of axial guides (8, 9) and that the pivot shaft (10) is mounted in the machine frame (21) with the interposition of rotationally adjustable eccentric bushings (14). 2. Warp knitting machine according to claim 1, characterized in that the eccentric bushing (14) can be rotated and clamped on the pivot shaft (10). ·· «it ' &iacgr; In. -2- 3. Warp knitting machine according to claim 1 or 2, characterized in that the eccentric bushing (14) is slotted and surrounded by a slotted clamping ring (16). 4. Warp knitting machine according to one of claims 1 to 3, characterized in that an adjusting ring carrying a marking (19) is connected in a rotationally fixed manner to the eccentric bushing (14). 5. Warp knitting machine according to claim 3 and 4, characterized in that the clamping ring (16) forms the adjusting ring. 6. Warp knitting machine according to one of claims 1 to 5, characterized in that the pivot drive is carried out by means of a tappet (11) via a joint eye (12) at the end (13) of the laying lever (9) opposite the at least one laying bar (4, 5, 6).