CS201394B1 - Apparatus for producing travelling wave sheds in multished weaving looms - Google Patents

Description

The invention relates to a mechanism for forming corrugated sheds on multi-shed weaving machines.

Continuous or stepped corrugated sheds are known. They are driven by helical shifting cams over the entire width of the machine, or the cams are located on the side of the machine and the footrests translate the movements to the individual leaves of the heddle. Or healds are controlled by locks, like needles in knitting machines. If shed eccentric and shed leaves are used, then in the case of a two-leaf canvas brace, for example, three sections of a wave-shaped shed, six sheets are required, and twenty-four sheets, for example, eight-leafed, which unnecessarily complicates the shed mechanism.

This problem is eliminated by the corrugated shedding device according to the invention, wherein the shed transporter links in coincidence with the cotter transporter links are provided with stair lugs in which the recessed pins with the lead-in flexible strips are in direct pressing contact with the short arms or bells and this pressure is transmitted alternately to the odd and even rootstocks by the second arm and further to the sliding bearings mounted on the carriers of the self-supporting healds, i.e., in the variations within each shed carrier member.

The advantage of the device according to the invention is the simplification of the brake and the reduction of its weight, as well as the possibility of increasing the insertion points to 20

25 meters per meter, thereby increasing machine production while reducing the speed of the loaders. E.g. choosing the speed of the clogger to only 0.6 m / s and 25 spots in the meter, then at 900 rpm and at a beam width of 360 cm, the machine wears 3240 m / min weft. The 900 rpm frequency is easy to achieve because it is weaving at 800 jet / min on jet narrow conditions at normally massive brakes.

The proposed shed device is shown schematically in the drawing, in which FIG. 1 shows the overall device of the machine in a side view, FIG.

Fig. 4 shows the same mechanism as seen from the side, Fig. 4 shows the action of the transporter elements on the footplates, Fig. 5 the lead-in flexible strip, Figs. 6-8 the attachment of the footplates to the self-supporting heald carrier in view. , in side view or in plan view.

In the overall view of the device, a warp 01, 02 passing through self-supporting, e.g. duralumin healds 10 on hollow duralumin tube supports 11 supported by sliding bearings 112, and a beam 14 'which is at rest and only aligns the warp threads. The open sheds pass through the weft inserters 5 which are stamped against the fabric

The rotors 15 are moved by a transporter 16x with magnetized pairs of gear wheels 3.3 '. Attached to the shaft of the drive wheel 3 is a wheel 31 which engages the gear wheels 32, 33 and drives the shaft 34 that carries a second shed transporter 216x with links equally wide but shorter than the load transporter 16x. The shed transporter 216x is supported on one side by discs or rollers 17 and on the other side it forms stepped steps 15 in which the holes 16 are inserted into which at least two bear the leading strips 161, pushing them together with the transporter 216x to the short arm 121, optionally provided with a bell, two-arm footstool levers 12, which in the basic position are held by springs 18. The leading strips 161 according to FIG. 5 are in the width of one link of shed cloth transporter 216x alternating in pressure on odd and even footstools . If the weave is to be multi-weave, the shed transporter members 216x are provided with a plurality of steps 15 and the runner strips 161 are longer and flexible and provided with multiple engagement pins 16, and then hold the footstocks 12, carriers 11, healds 10 and finally the corresponding threads 0 in the stroke. For multi-weave weaving, it is preferable to support the shed transporter 216x in a vertical plane, where there is more space to form steps 15, to accommodate pins with flexible strips 161. Figs. 6, a flat pedestal 12 is split at the end into a fork, where one fork tooth retains the pivot 111 underneath and the other tooth from above. Referring to FIG. 7, a flat foot 12 extends into an arcuate slot of the carrier 11. In FIG.

The shed formation on the multi-shed weaving machine is as follows: The shed transporter 216x has links as wide as the clogging transporter 16x and proceed at the same speed by means of the gears 31-33, so that the corrugated sheds are in agreement with the shifter shift. The shed transporter members 216x are supported on one side by discs or rollers 17 and on the other side are stepped projections 15, provided with holes for inserting pins 16 with leading strips, pushing them on shorter legs 121 or their jingle bells 12 alternately odd and even forming a canvas shed of the warp 01, 02, which is wavy, and each of them is filled with weft pickers 5, which are stamped by a rotating beam 14 to the fabric 7, and this is discharged by a device (not shown) and rolled onto a commodity wall. For multi-weave weaving, where the warp threads in the stroke remain for several weft clogging, they are longer and correspond to the stroke stroke stroke length.

Claims (1)

Apparatus for forming corrugated shed on multi-shed weaving machines comprising a cotter transporter, characterized in that the cotter transporter (16x) is in concordance with the cotter transporter (16x), which is provided with step projections (15) into which the pins (16) are inserted. the leading flexible strips (161) are in direct pressing contact with the short arms (121), optionally provided with bells, and which are connected alternately with odd and even rootstocks (12).