DE1760175A1 - Weaving process and device for carrying out the process as well as fabric produced by the process - Google Patents

Description

Dlpi.-Ing. Dipl. Oec. puW. gg J2 ' DIETRICH LEWINSKY ι Patent attorney NnSffndrt OTSil H Aprii1968

Mühchanäl - Gotthardstr. 81 J ι "7 fc η 1" 7 C

Telephone 56 17 62 I / Q U I /

DRAPER DIVISION NORTH AMERICAN KOCKWBLL Hopedale / üSA CORPORATION

Weaving method and device for carrying out the method, as well as produced according to the method tissue

The present invention relates to a method for a ^!

ι carry weft yarn in the form of pairs of susammerihän ing wefts in separate compartments by means of reciprocating weft yarn insertion organs, as well as a device for carrying out the process on a shuttleless loom and fabric produced according to the process,

Shuttleless looms are known (e.g. USA patent, No. 2'654 * 399) with weft thread controls for feeding a individual weft thread end sum weft insertion member.

For the production of certain types of weave it is often necessary to wishes weft yarn from different weft yarn sources »in-» or to create stripes or other effects by mixing different colors. The · is achieved by

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that the one color during a certain number of Schlissen is rummaged through "whereupon a" wide one, then a third, etc., follows *

There is a known method of denial (e.g. USA-patent Kr.? ¹ 323 * 556) sun successive insertion of hanging weft thread pairs, which are made by different weft threads. sources

• This construction acts for each of the

Optionally and individually insertable weft yarns in one Swivel head arranged individual doluse thread control organs, like oaths of sons and clenas. With every Schusegamweehael nut the swivel head with its controls near the entries the second half of the usual shots (hairpins) be swiveled, with the ends of the various oehuesgarne being held.

In contrast to the known weaving processes and their Implementation of certain Sohuas tax authorities The present object of the invention only contains one of the bredtuehllohen -SöhuQofadeneohne- and clamping devices in ferblndung «it a lever arrangement used »around the 4 * hussgarae en * one

Bring the orientation into a working position where it is in.

as is known from a leather holder pt den 9erei «n des. , echuaaelntragorganes be brewed.

The object of the invention is a weaving method and a device to create the old elnfair means of production A fabric with Sohusa yarns is allowed to swell in two shoes.

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ORIGIMAL BATHROOM

According to the invention, this object is achieved in that alternately weft yarn from at least two weft yarn sources are inserted from the same side of the loom in the following steps belonging to a weaving cycle:

1st cycle:

a) Registering the second shot of a pair of Qarns from one of the Sehussgara springs,

b) Inserting the first weft of a new pair of yarn from the same weft yarn source.

2nd cycle:

a) Inserting the second weft of a pair of yarn from another weft yarn source »

b) Registering the first shot of a new pair of Yarn from this other weft yarn source.

According to the invention, the object is achieved by a shot control device to carry out the procedure and it is characterized by control organs for Wahlwelsen entering one of at least three weft yarns from independent weft ' rjarn sources, consisting of:

a) a weft cutting / air conditioning device acting alternately and individually on each of the weft yarns,

b) separate weft thread guide organs for. separated Passing the weft yarn from each of the weft yarn quoilen and

c) the firing board guiding organs r.wischcn Grund "and ArbeitEstellimgen pivoting control organs.

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An embodiment of the invention plumb in the drawing and is described in more detail below. Show it:

Fig. 1 is a perspective view of part of the right side of the loom with the weft control device according to the invention,

Flg. 2 is a view from above of part of the shot control device according to FIG dash-dotted lines show the positions of the weft yarn guide levers that they will assume,

Figure 3 is a diagrammatic representation of the manner in which a

Fabric is made by interconnected wefts, taking from one weft yarn to the other and then switched back to Uokgc.

Flg. 3a shows a schematic representation of a shot pair or a cycle in weaving according to known methods,

Fig. Yo a schematic representation of a Schuaopaares or a cycle during weaving geraäss the erfindungsgeiaäasen Yerfehren,

Fig. 4 is a perspective view of the structure of Weft yarn cutting device,

Flg. 5 is a side elevational view, with partial section, of the Sohussearn guide levers mounted on a common. wave Are arranged one above the other,

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Fig. 6 is a partial view from above of the control shown in Fig. 2, but showing the mechanical elements for actuating the thread guide lever _a

Fig. 7 is a view like Fig. 2, however, only one illustrative Schussgarnführungshebel in its two-Arbcits Steilungen for generating an associated shot or a so-called ^M Haarnadelschleii'e ^{i <.}

In Fig. 1 only those parts of a Wobmechine are shown, which are necessary to explain the construction and how it works. So with 10 is a shot control housing denoted on the right side of the V / ebmachine closing to the right-hand end of a breast tree 11.

A sley 12 between loom frames, not shown is arranged moves in a known manner in the manufacture of the fabric.

In FIG. 1, a Sehußseintraggreifer 13 eats on a flexible tape l ^l \ disposed, which is guided in BandfUhrungsn 15 and introduced by e.new band wheel 16 made in a warp AU3 17 formed pocket and pulled out therefrom.

A shot camshaft 18 (Fig.1.) Is on both of them Ends in lugs 19 and 20 of the Steuergehiiusea 10 stored. on of the camshaft 18 is a so-called Schoron control curve arranged, from which a spring v / action scissors rod 23 is moved via a control shaft 22, which in known way a weft yarn sons and clamping device

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moved back and forth. As FIG. 4 shows, the rod 23 is guided in a bracket 24, which in turn is secured by means of screws 25 attached to the side of the control housing 10 1st.

At the inner end of the rod 23 there is a so-called second-chues guide 26 (FIG. 4). The same consists of one cylindrical part 27 »which the means for its fastening on the rod end 23 on a lot and in a plate-shaped Element 28 passes over to which a pair of scissors 28 '(FIG. 2) is attached by means of screws 29 and 30. The cutting device works in conjunction with the common elements, such as gripper, cutting blade and clamping element, which are generally associated with the Numeral 31 are designated and which are attached to the lower part of the console 24 by means of screws 32 (Figure 4).

The plate-shaped element 28 has a horn 33. If the same is moved inwards or in the direction of arrow 3 * (Fig. ¹ *) * after the first half of a continuous shot or a so-called "hairpin" has been released from the Sclmeid locking device 31, the horn 33 touches a shot holder · » Piston 33 Through this movement, the weft yarn, which now extends from the edge of the neck to its source, is held on the upper surface of the horn 33 and it can then be presented to the carrying gripper 13 to form the second part of the continuous weft «After the insertion gripper 13 has grasped the weft thread to form the second half of the" hairpin "and has covered a certain distance and removed a sufficient length of weft thread, it moves

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Zv / eltsehusführer 26 to the front would be 23 around the weft thread from the horn 55 to solve. At this point in time the weft thread that is withdrawn from the supply spool by the insertion gripper, directly through the area of the tendon idVKlemrnvor direction 51 guided. When the rod 25 continues to move forward, the Weft thread scissors 28 * in the space 51 'of the device 51 »around the Cut off the weft thread and clamp the end leading to the supply spool. The cut off and through the entry gripper The end entered in the compartment is so long that the second half of the "hairpin" is completed. Since the one from the supply Weft thread coming from the bobbin through the Schneld-Z clamping device 51 is held, he is ready to repeat the web cycle, that is, he can give the entry gripper 15 for the first "« "Ift one next following "hairpin" are presented.

We shall now describe the means for introducing and guiding more than one weft yarn from separate supply B-bobbins. A second, upwardly directed bolt 57 is on the top surface of the bracket 24 near the point arranged, on which the latter at 5θ (Fig. 4) on the housing 10 is attached.

A third vertical bolt 39 is arranged in a tab 40 (FIGS. 4 and 5) between the two ends of the bracket 24. In the present embodiment, the bolt 39 carries four on it ver _o pivotable weft feed and guide levers, which are generally designated as 41, 42, 43 and 44 in FIGS.

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The four levers are arranged one on top of the other on a soleno 39 and are held in place by a circlip 45 in an annular groove ^for <6 cm at the top of the Eolzens 39 (Pig. 4), each of the levers 4.]., ' 12, 43 and 44 can be individually pivoted on the bush 39 in a manner to be described later. The levers have a honeycomb section, which is designated with 47, 48th, 49 and 50. Each of the ilab parts has a downward angled arm, & or into the piss. 4 and 5 with 51, 52, 53 and is designated. At their lower ends, the arms are designed in such a way that they stand close together and yet leave sufficient space for the arms to merge. At the lower end - the lever 51 » ! 52., 53 and 5 ¹ V , horizontally leading, bent pins 55, 56, 57 and 5 δ (Fig. 4) are arranged, all of which are in the same shape and lie close together. At each of the froion ends of the fingers there is an eyelet 59 which is used for guiding and controlling the weft thread of a supply spool, as would be appreciated from the above.

As is apparent from the various Fi'ßurcn the drawing eats seen VTsiet each of the levers 4l, h2, ^ 3 ^ and a second horizon tal and directed auOGchcnden from Wabanteil arm. This anno and fig. rait 6 * J, 61, 62 anä, 6;> and they are slotted and rounded at their ends 64 (PJLg.4), as they act as a control curve *! , never described later.

The levers 4l, 42, 43 and 44 are under the action of Fcder-

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Organs which they seek to bring into their switched-off or basic position in the watchmaker's screen. For this purpose, spiral tension springs 65, 66, 67 and 68 (FIG. 4) are provided, one end of which is attached to the downwardly directed arms 51, 52, 53 and 5 ² I- and the other end of which is attached to a vertical spring retaining element 69. At

under ^, this latter are also vertically '- ^ arranged one to the other A * -. Partial screws 70 are provided, which act as a stop for the after arms 51, 52, 55 and 54, straightened at the bottom, in their disengaged = tone or basic positions are used. Ea can thus determine the exact positions of the levers 41, 42, 43 and 44 for the needs of dee Weaving process can be set. The spring retainer 69 sit on a detached! 'rager 71 (Fig.5). One of horizontal parts descelbon is with a not shown Provided opening which serves to the carrier 71 together with to fasten the bolt 39 and on the other horizontal part sits the spring retaining element 69 "

the Flg.4 shows, four cam control elements, which are designated by 72, 73 * 74 ^and ^ 75, are arranged on the bolt 36 so that they can pivot. Since each of these elements belongs to one of the levers 41, 42, 43 and 44, and since each of them has to fulfill the same function, only the uppermost element 72 will be described.

The element 72 has a boss part 76 and a plate-shaped, horizontal friche 77. Close to the edge of these curses 77 eats angled control slot 78 attached, the partially paralell

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to the long side of surface 77 and toilwelse inwards Direction against the Habenteii 76 is directed. In the area 77 a vertical pin 79 is provided. In the assembled state of the element 72 on the bolt 36, the pin is articulated 79 in engagement with the control surface 64 of the second arm 60 of the lever 4l.

As also from the Pig. 4 shows there are four with 80, 8l, 82 and 83 designated Schwcnkerrne on the bolt 57 pivotable arranged. Since the functions of all these arms are the same, only the top arm should be described.

The pivot arm 80 has a hub 84 at one end for the bolt 37. A long arm 85 extends from the hub 84, the has a fork 86 towards its end. At the end of the arm 83 a fixed pin 87 is provided «through the Bifurcation 36 passes through and out of arm 85 at the top and bottom protrudes.

Like the Flg. 1, 4 and 6 show, a part of the plate-shaped fish 77 of the element 72 protrudes into the fork 86 of the Arm 83 and the pin 87 is in the control slot 78.

Joder the swivel arm © 80, 8l, 82 and 83 has between his Ends of a lateral flap, which in the wing. 4 is bezelchnot with 88, 89, 90 and 91. These flaps are used for fastening one each Bowdenzugcs 93, 94, 95 and 96 (FiS * 1 and 4) of

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a suitable control unit 92 (shown schematically in FIG. 1) CU3 can be actuated ict. By actuating the Bordensügo, the control unit 92 av.a produces the desired desert and, when actuating it, the swiveling organs are broken from the position shown with dash-dotted lines in FIG. 6 into the position shown with solid lines.

Each of the pivoting companies 80, oil, 83 and 83 is pressed by a compression spring 97 (FIG. 1) into the position shown in FIG. 6 with dash-dotted lines. A spring clip 98 is attached to the bracket 24 and it also serves to prevent the swivel arms from being able to move beyond their switched-off or basic position - if they are never switched off by the control unit 92. Since each of the pivot arms 80, 81, 82 and 83 has the same function in relation to eu? the dornit cooperating cam control elements 72, 73 * 74 and 75 and Schue3fadenGteuerhebel 4l _f 42, 4p and 44 exercises, only the uppermost pivot arm 80 with the element 72 and dsm lever 41 should be described.

In Fig. 6, the pivot arm 80 is in front of it by the control unit 92 in the dash-dotted lines drawn basic position} if by the Bowden cable 93 the VJeUl takes place, then the Ana 80 is pulled out with the Lines drawn working position brought. Due to these bovreguns, the pin 87 in the control slot 7S is displaced, so that the plate-shaped part 77 of the control element 72 from

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the dash-dotted line moves into the position shown with solid lines. The pen slides in the process 79 on the control surface 64 of the second arm 60 of the lever 4i. During this movement, the pin 79 becomes sufficient Have traveled a long way so that it can enter a recess 100 (FIG. 6) and the lever 41 becomes tiiiKjtfi also have come into the leaning position, like Fig. 6 shows.

In FIG. 7, the first position of the lever 41, shown in solid lines, as shown in FIG. 6, is denoted ^{by the letter tt} A ^N. In this position, the lever 41 will have pivoted its bent finger 55 by such a distance that its eyelet 59 is located at the point indicated ^{by H} B ^M.

In position "B", the first weft thread, denoted by 1, runs from its source (supply spool) through the occe 59 »then across the upper surface of the home 53 of the second weft filler 26, then it is fed through a thread > .nrrs £ lle £ 101, which is attached to the console 24 by means of a screw 102 at 102 (FIGS. 1, 2 and 7). From this FUhrungoglled 101 the weft thread leads to the selvedge of the fabric, v / o it is held as a result of the beat-up movement of a reed 104 of the first half of a continuous weft or a "hairpin". Holding the first weft thread 1 in position ⁰ B "of 0e3e 59" is the same

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j.rs dor · Γί.Γ _; ] ϊί; ί | ϊ <Ξη Position to be fed downward from a weft yarn leather holder IO5, known per se, and to the weft insertion gripper 13 for insertion of the second half of a "hairpin *".

If the entry gripper 13 wanders into the compartment and sufficient Weft yarn length has sucked off to terminate the "hairpin", then the second weft guide 20 moves with it the scissors bar 23 forward. This will make the weft 1 of; Horn 33 and released from the guide member 101. As already has been described, the weft thread is then passed through the area to the scissors 28 * at this point. When the latter moves into space 31 'with the scissors = / Clamping unit 31 proves it, then it cuts the weft thread and holds it on the string that goes after the supply spool leads. The end cut and inserted into the compartment goes out to terminate the second half of the "hairpin".

If the second-shot guide 26 moves forward, then the bolt 36 and the control elements 72, 75 also move » 74 and 73 forward. During this movement the bevregon Pins 87 of the forked ends of the unselected pivot arms 81, 82 and 83 only in the direction of the control panels 78 of their respective controls 73 * 7 ^ * and 75 · Das Control element 72 selected as '.rar' as described cause that the pin 79, which is in the recess 100, the lever 4l in a second position, i.e. a working position

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versehwenkt in which the eyelet 59 of the finger reaches a designated "C" position 55 (Pig.7) _# In this position, the first weft thread 1 which leads from its supply spool through the eyelet 59, through the Soheren- / clamping unit 31 held. If the weft thread 1 is held in this position ⁿ C ⁿ by the eyelet 59, then it can be fed from the hold-down device IO5 to the insertion gripper 13 to form the first half of the next "hairpin".

As long as the lever 41 is selected, the pinger 55 is ^{pivoted back and forth between the eyelet divisions 11} B "and" C. This is done by the reciprocating movement of the second guide 26 and the action of the spring 65, which hold the lever presses against the switched-off or basic position.

The levers 42, 43 and 44 also lead weft threads from separate supply bobbins, which are arranged on the side of the loom, as shown in Fig.l by IO6. ^ The individual weft yarns pass through one weft thread eye each in a shield 107, then through a second guide element 108 and then through conventional clamping plates IO9. From the clamping or braking plates IO9 they pass between a pair of horizontal guide pins 110 and 111 (FIG. 1) and then into the eyelets 59 of their levers 41, 42, 43, or. 44. The weft thread 1 is guided by the lever 4l and the remaining weft thread - ", which are designated with 2, 3 and 4, by the other levers 42, 43 and 44,

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As shown in Pig. 2, the unselected levers 42, hj and 44 are in their basic position, so that their arms 52, 53 and 54 are in contact with their associated adjusting screws 70. In these positions, their associated weft threads 2, 3 and 4 are outside the area of the hold-down device 105.Because these weft threads were required or selected earlier, they lead through the eyelets 59 of their assigned fingers 55 * then through the area of the second-shot guide 26 and them are supported by the yarn guide member 101. From there they extend to the fabric edge, where they are held by the fabric edge. Each of these weft threads located in the basic position, ie not selected, comes from a simple weft which was previously entered as the first half of a "hair" ^M. If any one of the levers 42, 43 "44" is selected, then so that this particular related weft is completed by entering the second half of this particular "hairpin ^11" . If any one of the four levers 41, 42, 43 or 44 is selected, then the previously selected lever is immediately brought into its basic position in accordance with the control unit 92. The choice of one of the levers 41, 42, 4j5 or 44 and the deactivation of one the other lever must be timed so that this takes place during a very specific period of the weaving cycle; This means that the lever that is switched off comes out first in the leg position in which it has its weft thread ready for inserting the first half of a "hairpin". This lever then moves to its switched off or

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Basic position in which the weft thread lies outside the area of the hold-down device 105 and the thread is then held by the thread guide element 101. The newly selected lever moves during this time in such a way that the finger in question and the eyelet 59 assume the position ¹¹ B "in FIG Completion was not yet possible due to the selection of a different lever. Each deactivated lever must first be in the position in which the first half of a "hairpin" is entered and each newly selected lever first moves into the position in which the second half of the "hairpin ^{11 is formed} with its thread.

In operation, the second weft guide 26 reciprocates in a known manner and the weft threads are deactivated held by the thread guiding member 101 and they are not released when the guide 26 moves forward. if 3I moved the guide 26 backwards, then be touched Horn 35 the turned off weft thread from the lower, with position shown in solid lines and moves them to the upper position shown in dash-dotted lines, as shown in Fig. 2. The weft of a chosen lever becomes

meanwhile immediately from the Zweltsohuss guide 26 and from the yarn guide link 101 released when it is gripped by the entry gripper 15 and entered in the subject as the second half of a certain "hairpin";

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When following the described order of the Selecting and holding the different levers ^ 1, ^ 2, and 44 it is possible to have any even number of shots of the same weft yarn to be entered before switching to another weft yarn source »The pattern can be done like this be prepared, äaos strips of different colors of any Widths arise, or yarns of the same color can be mixed.

I> le 5 shows an example of a fabric which is produced by the method and with the Einrichtuncen gemäso of the present invention, in which four different weft yarns are used of various Vorrataspulen. Yarn 1 is denoted by short dashed lines, yarn 2 by dash-dotted lines, yarn 3 by solid, thick lines and yarn 4 ebsnfall3 by slackened but thin lines.

The Fig.Ja shows schematically the arrangement of a pair of soles, or a cycle when weaving according to known methods. In Fig. 3b, schematicch is a pair of schools, taw. a cycle shown when weaving according to the method according to the invention. Normally, the loops of the weft thread, which connect the separated wefts in a fabric, lie in the vicinity of the fabric edges. In Fig. 3 these loops are shown at a distance from the fabric edge \ this for a better understanding of the weaving process, wherein a certain yarn is first entered as the erate half of a "hairpin" and where

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after successive wefts of another yarn or other yarns, the second half of the weft is inserted is going to complete the "hairpin".

In the lower part of FIG. 3, yarn 3 is shown in the fabric as the first half of a "hairpin" and, after further wefts of yarn 2, 1 and 4, it is entered again at 112, to form the second half of this "hairpin". In this The yarn 3 * is dots as already described above, cut off and the end coming from the supply spool is cut through the cutting / clamping device 31 held. If this weft thread 3 is held in the cutting-Z-clamping device 31, then must match the first half of a given "hairpin" with the Yarn 3 can be entered before a change can be made to insert the first half of another weft yarn. In the case of a fabric as shown in Flg. 3 shows forms the yarn 3 the next complete "hairpin" and after inserting the first half of the next "hairpin" the yarn 3 is kept outside and Oarn 2 is selected for a further sequence of wefts, followed by yarn 1. yarn is then kept outside at II4 and yarn 4 is inserted to complete the "hairpin". The dotted Line 113 in FIG. 3 denotes the switched-off position of the yarn 4 prior to its last choice.

It goes without saying that any order in the weft size selection is possible, and any of the given yarns can be used in any desired order

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Number of shots to be kicked before moving on to another Yarn source is changed.

Inserting a new yarn between the first and the Second shot of a "hairpin" of a previously inserted yarn eliminates the need to use separate clamps and scissors for every single weft yarn. Up to now, yarn changes could only be made after the second weft or the Completion of the "hairpin *" had been executed.

The inventive method thus allows, after each To insert a yarn of a different weft yarn source, the first weft of this in each case, cycles described above new yarn forms the second half of a "hairpin" with the last weft of the same yarn from an earlier one Cycle.

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Claims (12)

η., '._ ι specimen copy of patent claims: i D, may not be changed. 1. weaving fürjeine shuttleless Webinaschine individually in the weft Depending in a separate compartment of warp in Forin of pairs ron continuous shots by means of reciprocating weft insertion organs is entered, characterized in that alternately filling yarn of at least two different Schussgarnquellen from the same side of the Weaving machine can be entered in the following steps belonging to a weaving cycle: 1st cycle a) Inserting the second weft of a pair of yarn the same weft yarn source, b) Enter the first shot of a new pair of Yarn from the same weft yarn source, 2nd cycle a) Inserting the second weft of a pair of yarn another source of weft yarn, b) Registering the first shot of a new pair of Yarn from this other weft yarn source. 2. Weaving method according to claim 1, characterized in that at least two non-interconnected wefts of the entered with another weft yarn source in cycle 2. 3. Weaving method according to claim 1, characterized in that Wefts from more than two weft yarn sources are entered in the same cycles or in several of the same. 20 ^ 818/0102 ORIGINAL INSPECTED 4. Weft control device for performing dc3 weaving processes according to claim 1 for a shuttleless loom the weft yarn one in each one of the warp threads in the The form of contiguous wefts is entered by means of reciprocating weft insertion organs by control elements for the optional entry of one of at least two weft yarn sources independent of at least two weft yarn sources, consisting of: a) one alternately and individually on each of the Sehussgarna acting weft thread cutting device (31)., b) separate weft yarn guide organs for the separated Passing the weft yarn from each of the weft yarn sources, and c) the weft thread guiding organs (4l) between working and Basic positions of different tax organs. 5. shot control device according to claim 4, characterized by at least two, each assigned to a weft yarn source, pivotable between a working position and a basic position Weft thread guide lever (4l to 44). 6. Sehussßteueinrichtung according to claims 4 and 5> characterized by each of the weft thread guide levers (4l to 44) assigned and curve controls interacting with the same (72 to 75). 7. ßchiiGSSteueinrichtung according to claims k, 5 and 6, celcennaolchnct by optionally movable, the pivotable curves "ßteuerolementon (72-73) assigned and when actuated effective pivot arms (δο-33). 209818/0102 BAD cn?.!: · ¹ »! 8. Weft control device according to claims 4 to 7 » characterized by the weft thread guide lever (41-44) Peder organs assigned to them and acting in the direction of their basic positions (65-68). 9. Fabric * produced by the process according to claims 1-3, characterized in that the weft thread consists of pairs consist of connected wefts and that each weft lies in a separate compartment formed by the warp threads, wherein at least some of the contiguous shots are contiguous by at least one shot of another pair Shots entered from the same side of the fabric are, are separated. 10. Fabric according to claim 9 »characterized in that the weft yarns come from different weft yarn sources. 11. Fabric according to claims 9 and 10, characterized in that that the weft yarns are of different colors. 12. Fabric according to claims 9-11, characterized in that the shots referred to as the first and second shots of a coherent pair of shots also by complete contiguous and separated wefts entered from the same side of the fabric. 209818/0102 j59bm
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