CS200962B1 - Leno weave producing apparatus for unorthodox weaving looms - Google Patents

Description

The invention relates to a device for forming a leno-weave on fabrics of unorthodox states.

In the manufacture of fabrics on non-orthodox weaving machines, where the individual wefts are cut, it is necessary to use devices for edge reinforcement. This can be done in different ways. One of them is a leno weave.

Today, many types of devices are known which produce either half or full lenoid linkages.

These are distinguished by the number of threads and the manner in which the gauze is made. Each of the topics used has specific properties.

In principle, they are considered to be more perfect girdles with the so-called right twist, where in the most famous design there were considerable space requirements.

This machine used two spools with a stock of leno yarn placed on a rotating plate. The board was further provided with continuous thread guides which, when the board was rotated, formed a direct shear. Therefore, this equipment had to be placed in close proximity to the heald leaves and the warp. This made it difficult to handle the loading of the healds and the warp onto the machine.

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In another known device, the Sun with a bobbin with a stock of leno yarn was clamped between two clamping bands and circulated by a conductor through which a second leno yarn, whose supply was located in the warp stop space, passed. This created a leno-weave fabric with the so-called right twist.

Since the two spools with the leno yarn supply were braked under different conditions, the leno yarn braking was unevenly braked and the lining of the fabric was unevenly tightened.

Placing the Sun with a spool between the tapes has limited the supply of leno yarn on the spool.

Another known device is the so-called flip-flop. The device, arranged on the brake sheets, utilizes a set of needles and transfer wires through which the leno threads pass. The resulting leno weave consists of at least three leno yarns interconnected systematically. But it does not reach the strength of the so-called right twist with two threads.

These disadvantages are substantially eliminated by the device according to the invention for forming a leno-weave on fabrics of unorthodox states, which is functionally reliable and inexpensive to manufacture and assembly.

SUMMARY OF THE INVENTION The principle of the invention is that stones are inserted between the ribbons and are provided with protruding conductors and through holes for leno threads in their center.

Other advantages and features of the invention will be apparent from the following description and drawings, in which:

FIG. 1 is a side elevational view of the device when shed formation; FIG. 2 is a side elevational view of the device when shed formation; FIG.

The device may be installed on two adjacent slats 1 and 2 or a similar loom system that performs a reciprocating counter-motion.

Between the dumbbells 1 and 4 at least two free strips ± are fastened at the gripping points J with driving slots 5. It can be seen from FIGS. 2 and 4 that the strips 6 can be moved to any location of the bracket leaves 1 and 4; 1 according to FIG.

A stone 6 with a protruding conductor J is interposed between the ribbons 6 of the bracket sheet 1 so that the conductor J extends for the space 8 between the ribbons 6 of the bracket sheet 2. In the same way The stones 6 and g are interchangeable and provided on the side surfaces with grooves 21 with protrusions 12 which engage in the driving slots g in the clamping bands. This gives the position of the stones 6 and g to form an aperture. .

The holes 12 for leno yarns 14 and 1g pass through the stones 6 and g. Furthermore, the stone is provided with sloping ramps 16 and the stone 2 with sloping ramps 11.

The function of the described apparatus is as follows: Referring to FIG. 2, weft 21 is inserted into shed 18.

Move the heald blade 1 upwards and at the same time the heald blade g downwards. Stones 6 and g are carried by clamping strips i. As the conductors 1 and 10 encounter the slopes 11 and 16, the direction of their movement around the stones 6 and g is determined. According to FIG. 3, the conductor χ runs through the gap 1g between the strip 8 and the stone g. stone 6.

The heddle leaves 1 and 2 fall into the inverted position even with stones 6 and g. The weft 20 is clamped and the shed 18 is reopened to insert a weft (not shown).

By reversing movement of the heald frames 1 and 2, a weft (not shown) is clamped and the shed 18 is opened to receive another weft (not shown). The leno yarns 14 and 1g, by means of these two movements of the heald blades 1 and 2, created one revolution of the so-called right twist of the lining.

As the leno yarns 14 and 18 are wrapped around each other, they are taken from a rotating magazine (not shown) which eliminates this wrapping on the inlet side 22 of the device.

Upon replacement of stone 6 with stone g, an inverted curl is formed.

SUBJECT OF THE INVENTION

Claims (4)

SUBJECT OF THE INVENTION An apparatus for forming a leno weave on fabrics of an unorthodox state, disposed on two adjacent counter-rotating heddle sheets and equipped with at least two clamping strips, characterized in that stones (6, 9) are inserted between the clamping strips (6, 9) which are 3, and having through holes (13) for leno yarns (14, 15). Device according to claim 1, characterized in that the stones (6, 9) have inclined slopes (16, 17) at their ends. Device according to Claims 1 and 2, characterized in that the side surfaces of the stones (6, 9) are provided with continuous grooves (23). Device according to one of Claims 1 to 3, characterized in that the conductor (7) of the stone (6) passes between its strips (4) and the stone (9) and the conductor (10) of the stone (9) passes through the clamping band (4). stone / 6 /. Device according to Claims 1 and 2, characterized in that the stones (6, 9) are interchangeable. 4 drawings