DE102010031232A1 - A method for producing technical narrow fabric in the form of fringe ribbon, a corresponding fringe band and a corresponding device - Google Patents

Abstract

A method for producing technical narrow fabric in the form of fringed tape (1), in particular for technical belts, with the method step weaving a fabric from warp threads (2) and at least one weft thread (3) with an active edge (7) is characterized in that Fabric with a repeat (6), each having a weft gap (4) and a band fabric section (5), is woven. A fringe ribbon (1) and a corresponding device are provided.

Description

The invention relates to a method for producing technical narrow fabric in the form of fringe band, in particular for technical straps, and to a corresponding fringe band. The invention also relates to a device for a loom for producing a fringe band.

A technical narrow fabric is a webbing, as used for example for technical straps. It is in various ways in use, such as. a. for example, loading harnesses, lashing nets, load securing nets and the like. On the one hand, a webbing must be designed for such applications with defined tensile forces and elongation properties. On the other hand, it may also be necessary for such a technical narrow fabric to be suitable for further processing, for example in connection with holders, other straps and straps, etc. Another aspect is an automated production with a shorter production time, as well as the simultaneous requirement for increased service life and cost reduction.

There is therefore a need for improved technical narrow fabric.

It is therefore the object of the present invention to provide an improved method for producing technical narrow fabric.

Another object is to provide a corresponding webbing.

Yet another object is to provide a corresponding device for a weaving machine.

These objects are achieved by a method having the features of claim 1, by a webbing with the features of claim 8 and / or by a device having the features of claim 13.

The invention provides a method for producing technical narrow fabric in the form of fringe band, in particular for technical belts, with the method step weaving a fabric of warp threads and at least one weft thread with an effective edge. The method is characterized in that the fabric is woven with a repeat having a weft gap and a band weave portion, respectively.

It results in this way a fringe belt with weft gaps and tape fabric sections with high tensile force, the fringed in the wiping gaps has such a structure, which is optimal in a subsequent further processing on a knitting machine, z. B. with stirrup bands of the knitting machine can connect. For example, this structure of the weft gaps can be made soft, so that, for example, a needle device of a knitting machine can produce an optimum connection during further processing.

The invention provides a fringe belt which, with a minimum use of material, provides a further processable product in which higher strengths than heretofore can be realized. The fringe band is weight-reduced due to a minimal use of materials, the production costs are low, and this results in individually customizable finished products.

Another advantage results from the fact that the further processing can proceed faster due to the defined weft gaps prepared for this purpose, which saves time.

The invention also provides a fringe band of technical narrow fabric for technical straps, with a fabric of warp threads and at least one weft thread. It is characterized in that the fabric has a repeat, each with a weft gap and a band tissue section.

The weft gaps are at a predetermined distance, d. H. with the report

The production of the weft gaps is for example possible because each weft gap is produced during weaving by a higher withdrawal speed of the fringe belt. The weft thread does not have to be changed in its feeding speed. For this purpose, for example, an electronic shedding device can be used on the weaving machine. Thus, a flexible positioning of the wiping gaps for a variety of further processing parameters can be ensured.

The weft gaps can also be produced on one side binding technology. In this case, on one side a binding of the outermost warp threads located directly on the active edge can take place with the at least one weft thread. A control of auxiliary threads on the effective edge need not be changed, since the loom continues to run in the regular number of shots.

Alternatively, the weft gap binding technology can also be prepared on both sides. For this purpose, the outermost warp threads are tied off at each edge of the fringe band with the at least one weft thread. A change in the control of auxiliary threads on the effective edge is also not here required, because the loom continues to run in this version in the regular number of shots. A weft feeder does not have to vary as the weft thread continues to run across the entire fabric width. It is only a separate control of the outermost warp threads on each edge of the fringe band in their sequence of movement for incorporating the at least one weft thread and inner warp threads in the central region between the outermost warp threads necessary because they are incorporated differently.

In a preferred embodiment, a length of the weft gap in the longitudinal direction of the warp threads may be formed in the range of 5.6-6.6 times a length of the tape weave portion. Other versions are also possible.

The at least one weft may be a high tenacity polyester filament yarn having at least 80 cN / tex. Also several identical or different weft threads can be used, resulting in a high flexibility.

In a further embodiment of the invention, it is provided that the weft gap and / or the band tissue section is provided with at least one reflex thread and / or a metallic thread for the metrological detection of the beginning and the end of the weft gap and / or the band tissue section / are. This facilitates automated positioning of the fringe band in a further processing machine.

A fringe band may be made by the method described above.

The invention also provides a device for a loom for the production of fringe, in particular for technical straps, of warp threads and at least one weft thread, with a repeat, which has a weft gap and a tape weave portion. The device is characterized in that it has a control device which is adapted to form the weft gap

The control device may be designed to control a withdrawal speed of the fringe belt as a function of a length of the weft gap and of the belt fabric section, wherein the control device for controlling a movement sequence of auxiliary threads of an active edge in the region of the weft gap is different from a control of the auxiliary threads of the active edge in the area of the belt fabric section is.

In a further embodiment of the invention, the control device can be designed to control a one-sided setting of warp threads located directly on a knitting edge with the at least one weft thread.

In yet another embodiment, the control device may be designed to control a two-sided setting of the outermost warp threads with the at least one weft thread.

Such a device can be designed for carrying out a method specified above.

The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying figures of the drawing.

In the figures show:

1 a schematic plan view of an embodiment of a fringe tape according to the invention;

2 a schematic plan view of a first embodiment of a weft gap of the fringe band according to the invention 1 ;

3 a schematic perspective view of the fringe band according to the invention 2 ;

4 a schematic plan view of a second embodiment of a weft gap of the fringe band according to the invention 1 ;

5 a schematic plan view of a third embodiment of a weft gap of the fringe band according to the invention 1 ;

6 a schematic plan view of a network section; and

7 a side view of the fringe band according to the invention 1 ,

In the figures, the same reference numerals designate the same or functionally identical components, unless indicated otherwise.

1 shows a schematic plan view of an embodiment of a fringe band according to the invention 1 ,

The fringe band 1 is a technical narrow fabric, for example, a webbing. It is also referred to as a perforated belt webbing. The fringe band 1 has band tissue sections 5 and wiping holes 4 on. The band tissue sections 5 are as a fabric of warp threads 2 and a weft 3 or more weft threads 3 woven, resulting in the middle band tissue section 5 is indicated. Ligament tissue sections 5 and wiping holes 4 alternate in this example with each other, with a weft gap 4 and a tape weave section 5 a rapport 6 form. In the wiping holes 4 are the warp threads by the reference numeral 2 ' opposite the warp threads 2 in the band tissue sections 5 distinguished. In 1 is just a rapport 6 with an upwardly adjacent tape weave section 5 and a lower adjacent only partially represented further rapport 6 from a weft gap 4 and a ribbon tissue section 5 shown.

The weft gap 4 can be made differently. First shows 2 a schematic plan view of a first embodiment of the weft gap 4 of the fringe band according to the invention 1 to 1 ,

An arrow A indicates the direction of movement of the fringe band 1 in its manufacture on a device, not shown.

The weft gap 4 is in 2 down and up from a tape weave section 5 limited. The lower boundary is formed by a leading edge VR (with respect to the advancing or moving direction) and at the top by a trailing edge NR.

The band tissue section 5 is through the warp threads 2 which run perpendicularly from top to bottom here, and by the weft threads extending at right angles from left to right and back 3 generated. This will be the weft threads 3 on the right side of the fringe band 1 by means of an auxiliary thread with a stitch formation in an active edge 7 connected, which should not be explained in detail. On the left side are the weft threads 3 with the outer warp thread 2 a left edge, passing around it.

At the beginning of the wipe 4 at the leading edge VR at the lower band tissue portion 5 becomes a higher take-off speed of the fringe band 1 obtained by increasing a speed of unwinding rollers, not shown. This can be z. B. via an electronically controlled fabric removal. This will make the warp threads 2 faster in the direction of movement (arrow A) transported, the weft as a gap weft 8th from the effective edge 7 out to the left side no longer perpendicular to the warp threads 2 and parallel to the last weft 3 in the leading edge VR, but at an angle, z. B. 30 °, runs to this. Here he leads the wrap of the left outer warp 2 in the middle of the length of the weft gap 4 off and runs at the same angle back up to the effective edge 7 at the trailing edge NR. Once this point is reached, the take-off rolls are set back to the previous speed, and the next (here the upper) tape fabric section 5 is woven. This results in a long floatation of the warp threads 2 in the wiping hole 4 ,

At the same time, a control device (not shown) of the device controls not only the take-off rolls in the region of the weft gap 4 at a different speed. The control of an auxiliary thread of the active edge 7 in the area of the weft gap 4 is correspondingly different from the area of the band tissue sections 5 execute, in a movement of the auxiliary thread such that with the weft 3 only one stitch formation with the auxiliary thread takes place at the leading edge VR and at the trailing edge NR, wherein the auxiliary thread between the leading edge VR and the trailing edge NR in a large loop as the effective edge 7 in the longitudinal direction of the fringe band 1 runs. A feeding speed of the weft thread 3 as a gap weft 8th in the area of the weft gap 4 can be maintained constant, with the "exploded" course of the gap weft 8th in the angle like in 2 shown results.

3 illustrates a schematic perspective view of the fringe band according to the invention 1 to 2 , Out 3 it is apparent that the effective edge 7 in the area of the weft gap 4 different from the band tissue sections 5 is trained. The warp threads 2 are only shown on the edge.

In 4 is a schematic plan view of a second embodiment of a weft gap 4 of the fringe band according to the invention 1 to 1 shown. The weft gap 4 In this second exemplary embodiment, the binding technique is produced on one side, in the region of the weft gap 4 only the outermost, directly at the effective edge 7 located warp threads 2 ' with the weft 3 in a bind 9 be tied off. The control of the auxiliary threads of the active edge 7 can be like in the area of the tape tissue sections 5 in their movement for stitch formation with the weft 3 be maintained, since this mesh continues in the regular number of shots.

Another, third embodiment of the weft gap 4 of the fringe band according to the invention 1 to 1 shows 5 in a schematic plan view. The generation of the weft gap 4 is also binding, but on both sides. In the area of the weft gap 4 become only the outermost warp threads 2 left and right at each band edge of the fringe band 1 with the weft 3 tied. The warp threads 2 in the area of the center of the weft 4 Float in the area of the weft gap 4 alternately above and below the weft threads 3 ,

The control of the auxiliary threads at the effective edge 7 remains unchanged as in the area of the tape tissue sections 5 in their movement for stitch formation with the weft 3 because this stitch continues in the regular number of shots. The weft feeder is also maintained as the weft 3 continues over the entire fabric width and also in the area of the weft gap 4 floats.

The warp threads 2 at the two edges left and right of the fringe band 1 However, they must be separated from middle warp threads 2 ' be controlled, as these different incorporations of the weft 3 to have.

Such a fringe band 1 For example, it can be used as a special tape for making nets, such as load securing nets. In addition shows 6 a schematic plan view of a network section 10 ,

The network section 10 consists of in the 6 horizontally extending fringe bands 1 and perpendicularly arranged bands 11 , The fringe ribbons 1 and the tapes 11 are at connection sections 12 interconnected, z. B. sewn or knitted. Here are the fringe ribbons 1 arranged so that their weft gaps 4 each in a connecting section 12 lie. The wiping holes 4 form a soft connection for optimum connection at the connection section 12 with the bands 11 ,

The network section 10 is produced for example in a knitting machine. The fringe band 1 can be taken as a cut product from a suitable magazine. In another embodiment, the fringe is 1 wound up as an endless belt on large disc spools.

The fringe band 1 is in the knitting machine with his rapport 6 positioned so that his weft holes 4 exactly with the connecting sections 12 coincide. To detect the wiping gaps 4 by a suitable detection device of the knitting machine, for example, reflex threads and / or metal threads in the fringe band 1 to be woven. The reflex threads can be optically detected by means of light barriers, wherein the metal threads can be scanned by metal sensors (eg proximity switches). Even a camera system installed on the knitting machine can recognize the goods image.

Finally shows 7 a side view of the fringe band according to the invention 1 to 1 , A rapport 6 In one embodiment, for example, has a length in the range of 170 mm to 200 mm +/- 1 mm. A weft gap width 4a is for example in the range of 30 mm +/- 1 mm.

The material of the fringe band 1 can z. B. high strength polyester filament yarn with at least 80 cN / tex. An exemplary number of shots can be designed with 45S / 10 cm +/-. A thickness of the fringe band 1 may be 2 mm +/- 0.5 mm in this example.

Although the present invention has been described herein with reference to preferred embodiments, it is not limited thereto, but combinable and modifiable in a variety of ways.

It is possible, for example, that materials other than those mentioned for the fringe band 1 , also used in combination.

Thus, for example, combinations of difficult to process fibers with high strengths as deposits, full chains, crochet and weft can be used, such. As aramid, glass fiber, carbon.

LIST OF REFERENCE NUMBERS

1

Frans band

2, 2 '

warp

3

weft

4

income gap

4a

Income gap width

5

ligament tissue

6

rapport

7

effective edge

8th

Gap weft

9

tying

10

network section

11

kneading belt

12

connecting portion

NO

Trailing weft margin

VR

Advancing weft margin

Claims (17)

Method of producing technical narrow fabric in the form of fringe tape ( 1 ), in particular for technical belts, with the method step weaving a fabric from warp threads ( 2 ) and at least one weft thread ( 3 ) with an active edge ( 7 ), characterized in that the tissue with a repeat ( 6 ), each of which has a weft gap ( 4 ) and a band tissue section ( 5 ) is woven. A method according to claim 1, characterized in that for forming the weft gap ( 4 ) at the Weave the deduction speed of the fringe band ( 1 ) is increased. Method according to claim 1, characterized in that the weft gap ( 4 ) is produced on one side binding technology. Method according to claim 3, characterized in that the weft gap ( 4 ) Binding technically unilaterally by setting the outermost, directly on the active edge ( 7 ) warp threads ( 2 ) with the at least one weft thread ( 3 ) is produced. Method according to claim 1, characterized in that the weft gap ( 4 ) Binding technology is produced on both sides. A method according to claim 5, characterized in that the weft gap ( 4 ) binding technology on both sides by setting the outermost warp threads ( 2 ) on each edge of the fringe band ( 1 ) with the at least one weft thread ( 3 ) is produced. Method according to claim 6, characterized in that the outermost warp threads ( 2 ) on each edge of the fringe band ( 1 ) in their sequence of movements for incorporation of the at least one weft thread ( 3 ) different from warp threads ( 2 ' ) in the middle region between the outermost warp threads ( 2 ) to be controlled. Fringe band ( 1 ) of technical narrow fabric for technical straps, with a fabric of warp threads ( 2 ) and at least one weft thread ( 3 ), characterized in that the tissue is a repeat ( 6 ) each having a weft gap ( 4 ) and a ribbon tissue section ( 5 ) having. Fringe band ( 1 ) according to claim 8, characterized in that a length of the weft gap ( 4 ) in the longitudinal direction of the warp threads ( 2 ) in the range of 5.6-6.6 times a length of the tape weave portion ( 5 ) is formed. Fringe band ( 1 ) according to claim 8 or 9, characterized in that the at least one weft thread ( 3 ) is a high strength polyester filament yarn having at least 80 cN / tex. Fringe band ( 1 ) according to claim 10, characterized in that the weft gap ( 4 ) and / or the band tissue section ( 5 ) with at least one reflex thread and / or a metallic thread for metrological detection of the beginning and the end of the weft gap ( 4 ) and / or the band tissue section ( 5 ) is / are provided. Fringe band ( 1 ) according to at least one of claims 8 to 11, characterized in that the fringe band ( 1 ) is produced by a method according to at least one of claims 1 to 7. Device for a loom for the production of fringe tape ( 1 ), in particular for technical belts, of warp threads ( 2 ) and at least one weft thread ( 3 ), with a rapport ( 6 ), which has a weft gap ( 4 ) and a band tissue section ( 5 ), characterized in that it comprises a control device, which for forming the weft gap ( 4 ) is adjusted. Apparatus according to claim 13, characterized in that the control device for the formation of the weft gap ( 4 ) for controlling a withdrawal speed of the fringe band ( 1 ) depending on a length of the weft gap ( 4 ) and the band tissue section (FIG. 5 ) is adjusted. wherein the control device for controlling a movement sequence of auxiliary threads of an active edge (FIG. 7 ) in the area of the weft gap ( 4 ) different from a control of the auxiliary threads of the active edge ( 7 ) in the region of the band tissue section ( 5 ) is trained. Apparatus according to claim 13, characterized in that the control device for the formation of the weft gap ( 4 ) for controlling a one-sided setting of directly on an active edge ( 7 ) warp threads ( 2 ) with the at least one weft thread ( 3 ) is trained. Apparatus according to claim 13, characterized in that the control device for the formation of the weft gap ( 4 ) for controlling a two-sided setting of the outermost warp threads ( 2 ) with the at least one weft thread ( 3 ) is trained. Device according to at least one of claims 13 to 16 for carrying out the method according to at least one of claims 1 to 7.

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