DE8021261U1 - DEVICE FOR CREATING A WEB SEAM AS A CONNECTION OF TWO FABRICS - Google Patents

Description

Τ · Ι. Linz »12. Voflmhl 02 * 44

Applicant; Prof. Dr.-Ing. R. Koller, Aachen Dipl.-Ing. W. Runkel, Aachen

Device for creating a woven seam as a connection between two fabric ends

The invention relates to a device for creating a () woven seam as a connection between two open fabric ends, in particular for the purpose of producing an endless fabric belt, e.g. for the paper industry.

So far, the creation of such woven seams has only been carried out by hand, by working over the entire width of the fabric tape and in a length of around 100 to 200 mm the weft threads fray and the weft threads of one end of the fabric tape weaves into the other end of the fabric tape as warp threads.

Since the distance between the individual warp threads is usually very small - sometimes less than 100 μ - weaving in by hand is tedious and tedious. In particular, it is very difficult for the seam weaver to securely grasp the next pending thread. Thread by thread, he has to convince himself that he has actually pulled out the correct thread. If, for example, he has grabbed the next but one thread and woven it in again, a so-called cross-lay occurs, which renders the entire fabric worthless and has to be removed in a laborious repair process. In practice, many hours of work are lost in weaving back and eliminating cross-weave.

The entire handicraft process when weaving a woven seam together on an 8 m fabric tape made of 0.18 mm threads (35 threads per cm)

tankkwfo: l ^ iltc <ftäpar! & tM.Uiui «tf Wtiln (BLZ (7411410)

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takes around 600 working hours on average. In addition This seam weaving work requires careful training (2 years of training) and only from highly skilled people and manual dexterity can be achieved. The seam weaving process demands a great deal of concentration from the seam weavers and also strains the eyes and general health, especially by being forced bad posture is attacked. Seam weavers include back pain and disc damage for everyday work.

The circle of people of the seam weavers is special because of the Requirements and the long training period, which in practice often extend far into the actual seam weaving work extends - many seam weavers only give up after they have worked for months after completing their training period elitist. The remuneration of the seam weavers is therefore much higher than the remuneration otherwise in the Weaving technology employed skilled workers.

From this illustration it is clear that the cost of a woven seam of the type described is extremely high are. Due to the high cost of the woven seams, the paper industry cannot be expected to have extensive warehousing, also not because tape length, structure and mesh size are often required differently from case to case. on the other hand it is not always possible for the weaving industry to supply new fabric tapes at short notice. To the work-wise Due to the long delivery times, the special training and other personnel requirements are placed on the Seam weavers that cannot be easily replaced by other personnel. For example, if a seam weaver is sick or on vacation, the work process inevitably runs more slowly.

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For the paper industry, there is also the pure question of cost the problem of delivery time: will a new tape needed at short notice, it may just not be available at short notice. Production in the paper mill concerned must then either be changed or shut down at all until the new fabric tape is available.

Understandably, the industry has made many efforts to mechanize the seam weaving process described manage, but so far without success. Only for the ( tension of the fabric and for the formation of the seam fans devices have been created through which the manual work has been made easier, see HASLMEYER "Textile Practice", 206/1972. But these devices also have those described above Nor can the disadvantages of manual labor be eliminated remotely. The number of working hours listed above, for example, is based on the use of the devices mentioned based.

The present invention has for its object the initially described Mechanize and automate the seam weaving process and create a seam weaving machine that is effortless can be served by all textile workers without special training. The seam loom according to the invention is intended for reliably create all kinds of fabric types in question, without cross-lay and other weaving errors occurrence.

In order to achieve this aim of the invention, fraying must have taken place each end of the tissue is partially separated from the total tissue and with this only over the original Warp threads, now weft threads, connected web strips are formed by the now warp threads, originally Weft threads, on the outer edge of the weft threads now protruding freely from the fabric, originally warp threads,

«Ο» 1 · »Il» 4 ··

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are partially outputted in a manner that is predetermined by the WebprozeG order of the reorganized wefts originally warp yarns is maintained and group- these nunmehrigen weft threads during seam-weaving process or einzelu / else mechanically released from the weave pattern and / ground, and then, via a separator spatially separated from one another, in compliance with the weaving order, one after the other by means of step-controlled gripping and guide organs brought to the respective open seam weaving shed and guided through it, pushed to the woven seam and tied in by forming a new seam weaving shed in such a way that the one right and one left Weft thread pair formed weft thread lies on a certain distance in the woven seam in a double position, wherein the seam loom and the two fabric ends to be woven together perform a preferably stepwise controlled relative movement in relation to one another by the individual Sch rides of the relative movement correspond to the respective progress of the seam weaving process. The steps of the relative movement can either be gradual or continuous. The weft thread can be pushed in in the seam shed either with the help of a generally known sley or with the help of special push-in needles. The predetermined weaving order of the weft threads, originally warp threads, can be connected to one another by means of gluing, soldering or welding of the threads to be woven at their outer edges and is thereby retained. It is ensured by weaving in auxiliary warp threads that are foreign to the fabric at the outer edges of the weft threads, originally warp threads, which now protrude from the fabric.

After each shed change, a cutting device aligned against the woven seam moves into the respective open seam shed and cuts the respective weft thread or

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the respective pair of threads individually or together. The lifting the now warp thread, originally weft threads, can be done in three stages, with two compartments at the same time arise through each of which a weft thread is passed, but in the opposite direction.

In order to perform these operations mechanical-automatically, the erfindungsgemäßÄ device consists of two opposing, fitted on a common _s with a stepper motor, mounted displaceable frame, {) mirror image and otherwise identical clamshell as well as from a common jacquard machine and a likewise common Beischiebeorgan with clock composed · Each machine half has a number of auxiliary lifting elements attached to the cords of the jacquard machine, which are used to release the individual weft threads to be woven in, and also a separator with clock generator that is controllable in the cycle of the weaving process and spatially separates the weft threads to be woven in. A gripping element with a stepping motor, which is also arranged on each machine half and controllable in time with the weaving process, picks up the weft thread end jumping out of the woven bandage and brings it up to the newly formed seam shed, while one of each is pivotably arranged together with a stepping motor on the relevant machine half and in the cycles of the weaving driven Steckarm with weft yarn clamping apparatus, the weft ^f adenende passing through the seam-weaving shed. Each separator can be composed in a thread-like manner from a series of alternately thinner and thicker disks plugged onto a common separator shaft, the thicker disks having a thickness that corresponds to the thickness of the threads to be woven and that corresponds to the difference in diameter between the thicker and the thinner disks is sufficient to accommodate the structure of the threads to be woven between each pair of discs j, the

jj, seen against the weaving direction, first disc as inlet

disc and the last disc, seen in the same direction, serve as the outlet disc and both the thinner discs as well as the thicker slices are cut laterally and pre-bent like a thread. However, the separator can alternatively only one single thick disc on each iron, which is between a ring provided with a metric thread on its surface, the inlet disc and the outlet disc is jammed. In a preferred embodiment of the invention, each separator is one of each aerodynamic formed baffles composed of existing wind tunnel and an air nozzle protruding into this, wherein the air flow generated by the air nozzle, deflected three-dimensionally in the wind tunnel, as a gripper and guide of the respective Weft thread to be woven in acts. At the exit point of the respective released from the weave of the woven strip Weft thread can be one of a rotating in the cycle of the weaving process Shaft with at least one separator needle attached at right angles to this shaft of an existing needle separator be arranged. The weft thread to be woven into and through the seam shed is advantageously guided by means of one slidably attached to the frame and driven by a stepper motor also attached to the frame Swivel arm, to which a tubular plug-in arm is attached, in the interior of the tube at least one on his free end of bent steel wire attached to the swivel arm is arranged to be displaceable relative to the plug arm. as An additional element for inserting the weft thread in the seam shed can be one rotatably mounted in the frame and one likewise stepper motor-driven needle roller mounted in the frame, on the rotating shaft of which two opposing, rows of needles consisting of a large number of flexible needles arranged in a helical manner are that the helix of one row of needles is right-handed and the helix of the second row of needles is left-handed. Alternatively, however, a number of approximately right-angled, e.g. Z-shaped needles can also be used as push-in devices

serve, which are parallel to each other and longitudinally displaceable on one with a stepper motor attached to the frame Guide bed are arranged to be displaceable back and forth in the cycle of the weaving process, each with one end in one in one on The curved guide groove located in the guide bed slidably attached guide slot protrude and reach into the seam pocket with the bent free needle part and there executes a sliding movement corresponding to the curve shape of the curve groove.

An exemplary embodiment is shown below with the aid of the figures the invention illustrated and explained. Show it:

Fig. 1 Overall view of the invention, from two Machine halves and a jacquard machine existing seam machine mounted on a common frame, in perspective View,

Fig. 2 the seam loom Fig. 1, schematically and in a top view, but without a jacquard machine,

Fig. 3 ···· β · · »···· Λ
• · · · 9 J ·>·>·>,'J' III ι ■ · «lit I Fig. 4th - 8 - GP 444 Fig. 5 the section A-A of Fig. 2, Fig. 6th the disc separator (partial view)
in a side view, Fig, 7th the section B-B of Fig. 4, C. Fig. 8th the inlet washer (left picture), the
thicker separator disc (middle picture)
and the thinner separator disc (Fig
to the right), Fig. 9 a schematic diagram of the disc separator
Fig. 4, the function of the disc separator
showing in the Gevi / ebuspension, in per
perspective view, with the special image
in the left circle the structure of the normal
Tissue and the picture in the right circle
a tie-in point of a pair of weft threads
show in the woven seam (greatly enlarged), ( the arrangement of a sley in the frame of the
Seam loom, schematic and in per
perspective view, one made of just three separator discs and one
metric thread existing shorter
Disc separator with auxiliary lifting elements,
schematically and in perspective
(the special figures in the circles as in
Fig. 7 described), - page 9 -

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10 shows an air nozzle of an air flow separator with Auxiliary lifting elements, schematically and in perspective

tivic view (special figures as in Fig. 7),

11 is a schematic plan view of the entire

Seam loom with the two-sided wind tunnels that divert the air flow three-dimensionally (the air nozzle Fig. 10 not visible); the tissue sections drawn on both sides indicate this

(_) interweaving overall structure that makes full use of it

drawn would make the representation of the machine confusing,

Fig. 12 shows section C-C of Fig. 11, the air nozzle Fig. 10 and the guide plates of the wind tunnel Fig. 11 showing in context,

13 shows a schematic diagram of the seam weaving point with

Needle separator, schematically and in perspective,

14 shows a gripper arm for picking up and bringing through t 'ι

of the weft thread through the seam shed in one

Side view,

FIG. 15 shows the gripper arm FIG. 14 in a top view, FIG. 16 shows the gripper arm FIG. 14 from the rear,

17 is an enlarged view of the front end

of the gripper arm Fig. 14 with steel wires (gripper wires) in the open position,

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18 shows the swivel arm part of the gripping arm in FIG. 14, in an enlarged side view, and FIG partly in section,

19 the two bent and kinked steel wires of the gripper arm, enlarged,

20 the front end of the gripper arm with plastic stopper, enlarged and in a longitudinal section,

\ Fig. 2Ϊ a needle roller for pushing the weft thread

'The one in the seam shed, enlarged and in perspective View,

22 shows the partial view of a guide bed with

a Z-needle and the associated stepper motor, the insertion of a weft thread in the Showing seam shed, partly in section,

23 shows the curve setting which controls the movement of the Z needle,

FIG. 24 is a partial view of the guide bed in FIG. 22

in a plan view and partially in section,

Fig. 25 the cross plates and spacer sleeves of the guide bed Fig. 22,

26 shows a guide element mounted in the guide bed for the link guide rods, in a Top view,

Fig. 27 shows the curve link Fig. 23 with deflection roller, in a side view,

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28 shows a schematic diagram of two jacquard machines cooperating via a summing roller with one connected to the axis of rotation of the summing roller and via a deflection roller as well A cord attached to the frame of the seam loom via a tension spring and holding the main lifting element,

29 shows a basic sketch of a double seam shed formation, schematically and in perspective view,

30 shows a cross section through a woven seam produced in the double seam weaving (enlarged),

31 is a view of the cutting and bending device for cutting and bending the Inlet disks, the thinner disks and the thicker disks Fig. 6.

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The reference numbers given on the figures indicate:

M upper machine half M ¹ lower machine half G frame

1 carrying prisms for the frame

2 guide rails for the frame

3 stepper motor for frame G

4 textile web

5 jacquard machine

6 sley

7 fabrics

8 warp threads (originally weft threads)

9 clamping device

10 weft threads (originally warp thread)

11 seam pockets

12 weft thread, waiting for inspiration

13 woven seam

14 Disc Separator

15 separator shaft

16 inlet washer

17, 18 threaded part, consisting of

thin slices 17 and thick slices

19 outlet disc

20 Cutting and bending device

21 guide rods on the separator

22 Collar of the separator shaft

23 Clamping ring

24 Clamping Nut

25 stepper motors of the disc separators

26 incision in the disks 16 bis

27 Knife edge on the inlet disc

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28 first weft thread guide

29 to / side weft thread guide

30 special thread on the outlet disc

31 Milling in the outlet disc 19

32 grippers

33 stepper motors for the grippers 32

34 Outriggers on the guide rods 35

35 guide rod

36 stepper motors for the guide rods 35

37 Guidance

V 38 additional binding of the weft threads 10

Called "web strips"

39 thermal cutting device on the frame G

40 key

41 Toothing on the guide rods

42 gears stepper motor guide rod

43 Plug arm on the frame G

44 Weft thread clamping device on plug arm 43

45 Toothing of the plug arms 43

46 stepper motors of the plug-in arms 43

47 stepper motors for sley

48 stepper motors for take-up rolls 49

49 Rolls for sloping web strips '' 50 Clamping device for woven strips 38

51, 52 Toothed connection frame G - clamping device

53 simple disc separator

54 Disc separator ring 53

55 metric geu / inde on the ring 54

56 auxiliary warp threads from woven strip 38

57 auxiliary lifting elements articulated on the jacquard machine 5

58 Air nozzle for separating and guiding the weft thread

59 Web strip guide

60, 61, baffles (wind tunnel) for guiding the 62 air jet

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63 auxiliary shed, formed from auxiliary warp threads 56

64 Air nozzle solenoid valve 58

65 Air supply line for the air nozzle

66 weight

67 rope

68 Supply Roll

69 Pulley

70 needle separator

71 steel needles επί needle separator 70

72 Blind hole in the sliding element 74

73 continuous threaded hole in the sliding element

74 sliding element

75 Guide tube on the swivel arm 76

76 swivel arm

77 Longitudinal groove in swivel arm 76

78 Bolts on the sliding element 74

79 Base plate connected to a rack

80 mother

81 Bolts on base plate 79

82 mainspring

83 Bolts in the swivel arm 76

84 bolts on the base plate 79

85 Stop bolt on the base plate 79

86 Internal thread in the guide tube 75

87 Compression spring in the guide tube 75

88 Nut to secure the threaded pin

89 Grub screw in guide tube 75

90, 91 steel wires that hold the weft clamp 44 form

92 clamping plates for the steel wires 90,

93 Plastic plug in the plug arm 43

94 Rack guide for rack 45

95 thread at stop 98

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96 Insulation material at stop 98

97 Nut to secure the stop

98 stop

99 front stop bolt in base plate

100 needle roller

101 shaft of needle roller 100

102 needles of needle roller 100

103 Stepper motor of the needle roller 100

104 Z needles

105 guide bed

V 106 Base plate of the guide bed

107 Guide rods of the guide bed

108 holes in the sheet metal 107

109 Sheets of the guide bed 105

110 spacer sleeves on the guide bed

111 coulisse on guide bed 105

112 Groove in the backdrop 111

113 guide rods of the gate 111

114 Compression spring on the sliding element 115

115 sliding element

116 toothed belt drive for the backdrop

117 stepper motor for the gate 111 , 118 roll to gate 111

119 cords of the jacquard machine 5

120 summing roller

121 Axis of rotation of the summing roller 120

122 Cord of the axis of rotation 121

123 main hoist

124 pulley for cord 122

125 mainspring

126 second jacquard machine

127 common rotary shaft of the jacquard machines 5 and

128 cords of the jacquard machine 126

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The seam weaving machine according to the invention consists of two opposite, mirror-image and otherwise identical machine halves M, M ¹ . In the following, the elements of this machine half are each provided with the same reference number, the reference number of the half shown in FIG. 2 as the lower half being provided with a prime. In the following description of the machine half M, M ¹ , only the relevant element is described and numbered; the description and numbering automatically apply equally to the same element on the other half of the machine.

The two machine halves M, M ¹ are connected to one another via a common frame G. The frame G is slidably mounted on guide rails 2 via supporting prisms 1 and can be moved from one end of a textile web 4 to the other end by means of a stepper motor 3, normally 4 and 8 m. Both machine halves M, M ^{1 have one in} common on the frame G attached jacquard machine 5 and a sley 6.

The fabric ends of a fabric 7 to be interwoven are stretched to the right and left of the clamped warp thread 8 on a jig 9. The frame G with the two machine halves M, M ¹ and the jacquard machine can be displaced on this jig 9. The fabric ends are clamped in such a way that the corresponding weft threads 10 (warp threads in the previous weaving process) of one fabric end lie opposite the weft threads 10 'of the other fabric end. With the jacquard machine 5, the seam-weaving fans 11 to be formed one after the other are formed. The weft thread 12 to be woven in is inserted into the corresponding seam shed 11 with the aid of the seam weaving machine M, M according to the invention, pushed in with the sley 6 and a new one corresponding to the seam weaving process is formed

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Seam shed 11 'integrated. The weft thread 12 'to be woven in is introduced into this newly formed seam shed II ^{1 with the aid of the seam loom M 1} , M, pushed in with the sley 6 and tied in by forming a new seam shed 11. This working sequence of introducing the weft threads 12, 12 'to be woven in with the aid of the seam loom M, M ¹ in the correspondingly successively formed seam sheds 11, 11' is repeated until the woven seam 13 is completed.

() The symmetrical halves M, M ^{1 of} the seam loom shown in FIGS. 2 and 3 are constructed symmetrically to the woven seam 13. In this seam loom, weft threads 12, 12 ′ are spatially separated with the aid of disk separators 14. The workflow is identical on the right and left side of the seam loom M, M '.

Each disk separator 14 rotatably mounted in the frame G, shown in FIGS. 4 and 5, consists essentially of a separator shaft 15, an inlet disk 16, a threaded part 17, 18 and an outlet washer 19. The Threaded part 17, 18 consists of individual disks with different thicknesses and outside diameters, with the thinner disks 17 having a larger diameter and the thicker disks 18 are equipped with a smaller diameter. The thickness of the disks 18 is dependent on the diameter of the weft threads 10 to be processed, and the thickness of the larger disks 17 is depending on the distance between the individual warp threads, now weft threads 10, in the fabric 7 with one another. The difference in diameter between the thinner and thick disks 17, 18 must be so large that the weft threads 10 structured by the weaving process without deforming the structure into the individual Thread turns of the thread formed from the disks 17, 18

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fit in.

The ge \ i / inde-like structure 17, 18 arises because the individual disks 17, 18 are appropriately cut and pre-bent at their outer edges. This deformation the disks 17, 18 can be done by means of a cutting and bending device 20, which can be seen in FIG is. In the course of assembling the disks 16 to 19 on the separator tube 15, a thread is thus created which only in a certain range of rotation of the disk separator 14 is a transport of the from the inlet disk 16 individually drawn-in weft threads 10 takes place. So that such a thread-like structure can come about, the individual disks 16 to 19 must be slipped onto the separator shaft 15 and additionally onto the guide rods 21 in the following manner.

First comes the outlet disc 19, which is located on a Collar 22 of the separator shaft 15 is supported. Following the outlet disk 19, there is first a thick disk 18, then a thin slice 17, etc. There are as many thin and thick slices 17, 18 in the order described pushed onto the separator shaft 15 and the respective guide rod 21 until the required thread length is reached. Finally, the inlet disk 16 is pushed onto the separator shaft 15 and guide rods 21. After the individual Disks 16 to 19 are placed on the separator shaft 15, they are by means of a clamping ring 23 and a clamping nut 24 against the one on the separator shaft 15 trained collar 22 braced. This thread-like structure 16 to 19 takes place in a certain range of rotation the desired transport of the weft threads 10. One of the guide rods 21 is flattened on a surface line and rests with the flattened side on the separator shaft 15, see Fig. 5. This measure serves the purpose of to ensure a thread pitch that is always in the same direction everywhere.

GP 444

The shape of the face milling on the clamping ring and the outlet disc 19 is dependent on the required Thread pitch and pitch direction and thus again dependent on the diameter of the weft threads 10 and the direction of rotation of the disc separator 14.

The disc separator 14 of the machine half M makes one clockwise rotation limited to 360 ° and then intermittent, while the disc separator 14 'executes an equal counter-clockwise rotation, in each case in the weaving direction seen. These, each after one revolution,

C setting rotary movement is generated by a stepping motor 25 (Fig. 2). The respective direction of inclination of the thread-like structure 16 to 19 on the disk separator 14 is achieved by appropriate millings on the face of the clamping ring 23 and the outlet disk 19 and by appropriate cutting and pre-bending of the disks 16, 17, 18. The pitch direction of the thread turn on the outlet disk 19 corresponds to the pitch of the remaining thread 16 to 18.

The individual drawing in of the weft threads 10 onto the disc separator 14 is achieved in that the one made by the cutting and bending device 20 incision 26 provided inlet washer 16 made exactly the same

^ is like the thin disks 17 of the thread-like structure 17, 18, only with the difference that opposite from the incision 26 on the inlet disk 16 parallel to A segment is cut off this incision 26 (shown in FIG.), so that a kind of knife edge 27 is formed. This measure works with a first weft thread guide 28, which is responsible for the entry of the weft threads 10, as well as a second weft thread guide 29 serving the outlet. Each weft thread guide 28, 29 consists of one with each a knife edge aligned with the separator 14

it tr H · »·· ··

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provided, both vertically and longitudinally axially displaceable bar, the first weft thread guide 28 is longer than the second SchuQfadenführung 29, while this on the outlet side the first weft thread guide 28 by one Longitudinal measure, which corresponds to the width of the outlet disk 19 exactly. Look at these facilities and in that the inlet disk 16 is a predetermined distance from the first of the thinner disks 17 (the Discs with a larger diameter) has the effect that only one weft thread 10 per revolution (360 °) of the disc separator 14 can be drawn onto this. At the end of the thread-like structure 16 to 18 located outlet disk 19 is designed so that a spatial separation of the weft thread 12 to be woven in from the weft threads 10 which are still on the threads is achieved. This spatial separation takes place in the axial direction by a special thread 30 with a large cut in the outlet disk 19 Pitch. Furthermore, through a milling 31 (Fig. 3 and 7) on the circumference of the outlet disk 19, a takeover of the Weft thread 12 made possible by a gripper 32 (FIGS. 2 and 3). This gripper 32 is designed like a crank (Fig. 2); One of its crank members is swiveled out by a stepping motor 33 in time with the weaving process. The stepping motor 33 is attached to a boom 34 of a guide rod 35 which is axially displaceable on the frame G and which is in the Clocks of the weaving process is shifted back and forth in the weaving direction. The longitudinal displacement of the guide rod 35 takes place by means of a further stepping motor 36.

As a result of the combined rotating and sliding movement, the free end of the gripper 32 describes a spatial one Curve which it spends from the outlet disk 19 to the entrance of the respective seam shed 11.

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A fabric guide 37 made of sheet metal is arranged on each machine half, by means of which both fabric ends of the fabric 7 are knocked against each other in a funnel or cone shape and thus prepared for the separation of the weft threads 10.

The arrangement of the disc separator 14 rotatably mounted in the frame G and the fabric guide 37 ensures (see FIG. 7) that the knife edge 27 (FIG. 6) on the inlet disk 16 directly at the foot of the Tissue 7 protruding and with an additional weave 38 (FIG. 2, also FIG. 7) on the outer edge that has come about as a result of the partial weaving described above provided weft threads 10 engages. Through the further transport of the individually drawn in from the inlet disk 16 Weft threads 10 on the thread-like structure 16 to 18, the fabric guide 37 and the relative movement during advance the seam loom M with respect to the clamped fabric is achieved that the foot of the weft threads 10 continues migrates away from the disc separator 14. This is necessary so that the additional binding 38 that has come about on the woven strip is on the outer edge of the as former Warp threads weft threads 10 are released with the aid of a thermal cutting device 39 (FIGS. 2, 3 and 7) which is firmly connected to the frame G in the event of a possible entanglement with one another by combing through to the outer end of the weft threads 10 again separated can be. The thermal cutting device 39 is generally known in weaving technology and is therefore not here vi / pus described.

This procedure enables the weft threads 12 to be woven in by the respectively assigned gripper (Fig. 2) can be pinched at their front ends.

11 I · ·· I «·· ♦ ·

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The grippers 32 are thus on the space curve described above out that the respective front, clamped by the associated gripper 32 end of the respective weft thread 12 past the disk separator 14 and the first weft thread guide 28 at the level of the respective seam shed is brought.

The guide rods 35 are rotated by means of parallel keys 40 prevented. At the rear end of each guide rod 35 a toothing 41 is attached. By a controlled reversing rotary movement of each stepping motor 35 and by transmitting this rotary movement via gears 42, which engage in teeth 41 of the guide rods, these lead a defined movement in the axial direction Direction of the disc separators 14. The rotary movements of the stepper motors 33 and 36 are matched to one another.

The front end of the weft thread, brought to the level of the corresponding seam shed 11 with the aid of the gripper 32, is taken over by a plug arm 43 'with a weft thread clamping device 44', which is arranged on the frame G so as to be displaceable and non-rotatable, and pulled through the seam shed 11. The plug arm 43 'must be located within the cavity formed by the fabric 7 to be woven, because otherwise the insertion of the plug arm 3 into the seam shed 11 would not be spatially possible. When the second weft thread 12 'is brought ^{through from the opposite machine half M 1} through the corresponding seam shed 11 ⁽ the plug arm 43 with the weft thread clamping device 44 takes over the weft thread 12' from the gripper 32 'and pulls it through the seam shed II ¹ the weft thread clamping devices 44, it is also possible to hold the weft thread 12 with the plug arm 43 only up to the middle

t 111 · · · ■ · ···

■ til

23 - GP 444

To push the seam pocket 11, where the weft thread is then taken over by the plug arm 43 'of the machine half M' and finally pulled through the seam pocket 11. The weft thread 12 'is then passed through the corresponding seam compartment 11' in the same way.
Each plug arm 43 is provided with a toothing 45; the required rectilinear oscillating movement comes about via the toothing 45 in that the plug-in arms, M / ie
Already said above, are mounted in the frame G so as to be non-rotatable and displaceable and are driven by stepper motors 46, M / elche perform reversing movements.
The weft threads 12 which are introduced into the corresponding seam compartments 11 are attached to the sley 6 with the sley 6
already finished woven seam 13 pushed in.
The sley 6 is rotatably mounted in the frame G and is
Driven by a stepping motor 47, as shown in FIG. 8.

The by the thermal cutters 39 from the
Weft threads 10 separate web strips 38 are with the help
the stepper motors 48 are wound onto the take-up rollers 49. The woven strips 38 still connected to the weft threads 10 are firmly connected to the tensioning device 9 by clamping devices 50 at the end of the tensioning device 9.

As already said at the beginning, the frame G is mounted displaceably on guide rails 2 and is displaced from one end of the fabric tape to be woven to the other end during the weaving process. This shift
takes place step by step, in the cycle of the seam weaving process, in that the frame G is moved step by step by the stepping motor 3 via a tooth connection 51, 52 .

1 I.

III I · t · · «

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24 - GP 444

The stepper motors

3 for the frame G

25 for the disc separators 14

33 for the gripper 32

36 for the guide rods 35

46 for the plug arms 43

47 for the sley 6 or for the

Needle slide 100, IO4

48 for the winding rolls 49

are via a logic circuit (not shown) with connected to the jacquard machine 5 and perform their process steps in the cycle of the jacquard machine, with a number of connected sensors (not shown) the Control the entire workflow in the usual way.

The disc separator 14 described here takes in the course of separating a number of weft threads in a memory-like manner on. As the disc separator 14 driven by the stepping motor 25 rotates step by step in time with the weaving process, the separated weft threads 10 migrate over the thread-like disks 16 to 18 from the inlet disk to the outlet disk 19, where - as already described the each weft thread 12 arriving there is picked up by the gripper 32.

Because of the complex production of one from many Disks 17, 18 (on average 1000-1200 disks) composite separator 14, this is only economical for Use fabrics with fabric threads of the same strength. But if the thread size changes from fabric process to fabric process, must a simpler disc separator for economic reasons 53 can be used. This consists of a ring 54, on whose outer surface one of the direction of rotation of the disc separator corresponding metric thread 55 cut

•. «• III ti

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is, as well as from an inlet disk 16, a single one thicker disc 18 and an outlet disc 19. thicker disc and outlet disc are designed in such a way that as described in the previous exemplary embodiment. The metric thread 55 on the ring 54 has

f the task of preventing the seam weaving

machine the weft threads 10 in the feed direction of the seam loom are taken along and thus a drawing-in of the weft thread 10 through the inlet disk 16 onto the disk separator 53 would not always be guaranteed. The (/ basic arrangement of the disk separator 53 in the Seam loom is shown in FIG. The release of the weft thread 12 to be woven in from the weave of the woven strip 38 is made by appropriate raising and lowering of auxiliary warp threads 56 by means of the jacquard cords articulated auxiliary lifting elements 57, which by the Jacquard machine 5 are controlled, achieved. The released weft thread 12 is with the help of the outlet disc spatially separated from the weft threads 10.

Both disc separators 14, 53 require extremely precise guidance of the woven fabric in relation to the seam loom, approximately in the order of 0.1 mm, both in the individual step from thread to thread and in the sum of the process steps from the beginning of the fabric tape and up to it End. This means that the seam loom must be able to always cancel out the individual step errors against each other, a requirement that can only be satisfied by means of complex sensor technology.

In a simpler and less demanding embodiment of the seam weaving machine, the spatial separation of the weft threads and their subsequent guidance up to the respectively formed

26 - GP 444

th compartment which is accomplished by a stream of air coming from an air nozzle 58 (FIG. 10). The one in the stripe 38 bound weft thread 10 is together with the woven strip brought up to the air nozzle 58 by a woven strip guide 59, the woven strip 38 being moved from its original vertical position into an approximately horizontal position will.

The air nozzle 58 blows into a wind tunnel formed from three aerodynamically shaped guide plates 60, 61, 62 (Fig. 11 and 12). As a result of the rotation of the woven strip 38 about its longitudinal axis and through the opening of the means of the auxiliary lifting elements 57 formed from the auxiliary warp threads 56 Auxiliary shed 63 creates a stretching through which the pending weft thread 12 from the weaving order pops out. The popped weft thread 12 is picked up by the air flow and passed through the wind tunnel 60, 61, 62 out until its front end in front of the opening of the main compartment just formed in the same work cycle (Seam shed) 11 is enough. Here he already grabs him previously described plug arm 43 'with its weft thread clamping device 44 'and pulls it through the seam shed 11. The rest of the procedure is the same as in the first exemplary embodiment.

The air nozzle 58 is integrated into the woven strip guide 59, to save space. It is connected to an air supply line 65 via a solenoid valve. The solenoid valve is controlled by sensors (not shown) which signal the point in time at which the plug arm 43 'starts its working stroke begins.

As already described at the outset, the woven strip 38 is outside the seam loom on the jig 9

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27 - GP 444

attached. During the working processes of living together of the fabric ends, the woven strip 38 stands still while the frame G moves with the seam loom.

The derogatory auxiliary warp threads 56 of the woven strip 38 u / ground wound onto the take-up roll 49. Since the leadership of the respective woven strip 38 relative to the seam loom when using disk separators 14, 53 must be done exactly from thread to thread, it is essential required that the take-up roll 49 exactly in time with the Seam weaving process is stretched, which is a very precise Control of the driving stepper motor 48 required.

This is not necessary when using air separation and air routing. Here it is sufficient to load the take-up roll with an approximately constant torque, e.g. with a rope 67 unwinding on the shaft of the take-up roll 49 and provided with a weight 66. With a fabric width of approx. 8 m, the weight 66 would be free downwards lowered, also require a free depth of approx. 8 m. This is avoided by compensating for the relative movement of the strip-seam loom by keeping the auxiliary warp threads 56 rolled up on the winding roller and no longer used under tension by means of an unwinding roller 68 coaxially connected to the winding roller 49 and non-rotatably connected around which the rope 67 is wound on which the drive weight 66 hangs.

The rope '67 is deflected from the originally vertical position into a horizontal position (indicated by dashed lines in FIGS. 11 and 12) and brought up to a deflection pulley 69 , from which the drive weight 66 then hangs down. By this measure, the relative displacement of the seam loom is used to essentially eliminate the movement of the weight 66 -

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- 28 - GP 444

In the same sense, you can use a Air flow, use a liquid flow as a guide means, e.g. water or a water emulsion. The effect is basically the same, although the air flow creates a dynamic pressure while the water flow creates an impulse.

The weft threads can also be separated by means of electrical field forces by moving the weft threads and the road over which the individual weft thread is to be guided is electrostatically charged with the same polarity. For this purpose, two capacitor plates placed opposite one another are used (not drawn).

The separation of the weft thread 12 and its guidance up to the plug arm 43 'by means of air flow, liquid flow or Electrostatics take place regardless of the accuracy of the guide steps. The control of the seam loom is thus decisively simplified.

The woven strip 38 does not have to come about exclusively through partial weaving of the textile web 4, but can take up auxiliary warp threads 56 that are subsequently woven in, foreign to the fabric. By this measure one is not tied more to the specified number of shafts of the type of fabric.

Should the wave structure of the threads be designed in such a way that the air flow is not readily able to cause the weft thread 12 to be woven into the weave to jump out of the weave 38, an additional separator, namely a needle separator 70 in the The shape of a brush provided with at least one soft steel needle 71 as brush hair is used, cf. FIG. 13. During the rotation of the needle separator 70, the steel needles 71 tear the one that is to be woven in Weft 12 out of the weave; the weft thread 12

- 29 - GP 444

is then brought into the respective open seam-weaving shed 11 in the manner described above.

As has been shown in tests, with a simple straight-line introduction of the corresponding weft thread 12, originally warp thread, into the corresponding seam shed 11 with the aid of the insertion arm 43 ′, the respective weft thread 12, originally warp thread, can be attached by pushing it with the sley 6 the woven seam 13 cannot always be brought into its position in the woven seam 13 predetermined by the weaving process.

In order that the respective weft thread 12, originally warp thread, introduced in the cycle of the seam weaving process into the corresponding seam weaving shed 11 is brought into its position in the weaving seam 13 predetermined by the weaving process with each work cycle, it is necessary to move the respective weft thread 12 into the seam weaving shed with the help of the plug arm 43 ^/ inserted weft thread 12, originally a warp thread, to be attached to the woven seam 13 under a defined tension before it is pushed in with the sley 6 .

Because the weft thread 12 is attached to the woven seam 13 under tension, a short piece of the jumps Weft thread 12 before it is pushed into its position predetermined by the weaving process into the woven seam 13.

So that the weft thread 12, originally a warp thread, can be attached to the weave seam 13 under tensile stress before being pushed with the sley 6, the tubular conveyor is

- 30 - GP 44 4

mig-formed plug arm 43 'is firmly screwed into a longitudinally axial threaded hole 73' in a sliding element 74 'provided with a longitudinally axial blind hole 72' and a longitudinally axial through threaded hole 73 'located above it. The sliding ^{element 74 7} is with its blind hole 72 'on a guide tube 75 ^; attached, which is inserted through a hole in the thicker leg of an L-shaped pivot arm 76 ^ (Fig. 18). Through a bolt 78 which is screwed into the sliding element 74 'at right angles to its longitudinal axis and is guided in a longitudinal groove in the essentially flatter second leg of the pivot arm 76'^; a rotation of the sliding element 74 ^; prevented.

The right-angled swivel arm 76 '(FIG. 15) is screwed onto a plug-in arm 43' that is firmly screwed to the toothing 45 ' Base plate 79 'screwed in and secured against loosening by a nut 80' with its bolt 81 ' arranged in the seam weaving direction legs and is rotatably mounted with the help of a tension spring 82 ', which is between a in the leg of the pivot arm 76 ′, which is arranged at right angles to the seam weaving direction, and a second bolt 83 ′ in the base plate 79 'screwed bolt 84' clamped and against one screwed into the base plate 79 ' Stop bolt 85 'is placed in such a way that the much flatter leg of pivot arm 76' is exactly at right angles is aligned with the seam weaving direction.

An internal thread 86 'is cut into the end of the guide tube 75' mounted in the pivot arm 76 '. In this internal thread 86 ^; A compression spring 87 'located in the guide tube 75' can be fitted with the aid of a with a nut 88 ^; The threaded pin 89 'secured against unintentional loosening can be pretensioned against the sliding element 74' which can be displaced on the guide tube 75 '.

- 31 - GP 444

The sliding element 74 'is supported on the steel wires 90', 91 'which form the weft thread clamping device 44'. These steel wires are fixed in one with the swivel arm 76 ′ connected terminal plates 92 'and are soldered through the plug arm designed as a tube 43 'as well as by a plastic stopper 93 'screwed through its front end and provided with a longitudinally axial bore.

Each of the two steel wires 90 ', 91', which form the actual weft thread clamping device 44 ', is initially aligned in an arc shape and therefore has an end that struts away from the original longitudinal direction or from the longitudinal direction of the plug arm 43' which is designed as a tube and contains the steel wires Tension. Towards its free end, each steel wire is 90 ^; , 91 ^; bent twice and here forms a "V" with legs of unequal length in the plan view, the inner shorter leg of which continues in the curve shape. The arcuate alignment of one steel wire 90 ′ is opposite to the arcuate shape of the second steel wire 91 ′, as can be seen in FIG.

The weft thread clamping device 44 'is opened and closed by a relative displacement of the plug arm 43' mounted in the sliding element 74 'with respect to the clamping plate 92'"soldered into the clamping plate 92 '" which is firmly screwed to the pivot arm 76' and passed through the plug arm 43 'and the plastic stopper 93' steel wires ^90; causes 9l '.

Namely by the plug arm 43 ^; is moved towards the clamping plate 92 ', the V-shaped kinked steel wires 90', 91 'continue to emerge from the tubular plug arm 43'. Under the action of the steel wires 90 ^; , 91 'prevailing, laterally outwardly striving bracing

- 32 - GP 444

The mutually aligned V-shaped end pieces of the steel wires 90 ', 91' open up and form one open pliers (FIG. 17), which grips around the open end of the respective weft thread 12 which is to be woven in.

This relative displacement of the plug-in arm 43 'takes place by that the sliding element 74 'against one at the end (seen in the direction of movement of the rack for introduction of the plug arm 43 'in the seam shed 11) of a rack guide 94' mounted in the frame G by means of a thread 95 'and with

(. An adjustable stop 98 '(FIG. 14) provided with an insulating material 96' for noise insulation and secured against unintentional loosening by a nut 97 'shortly before reaching the maximum stroke of the rack 45' driven ^{by the stepping motor 46 / and thus the} The sliding element 74 'is displaced against the spring force of the compression spring 87' relative to the guide tube 75 'fixedly mounted in the swivel arm 76'. As a result of the relative displacement of the sliding element 74 'relative to the guide tube 75', the plug arm 43 ^{, which is firmly screwed into the sliding element 74;} 'opposite to those soldered into the clamping plate 92' and firmly connected to the swivel arm 76 'by the clamping plate 92'

' Steel wires 90 ·', 9l ', with the result just described.

After reaching the maximum stroke, the rack 45 'moves back, and the plug arm 43' remains in the rest position until the kinks in the steel wires 90 ', 9l' on the plastic plugs 93 'create. The compression spring 87 ′ is supported against the sliding element 74 ′ and against the threaded pin 89 ′;

the displacement movement of the plug arm 43 'is limited by the kinks in the steel wires 9o', 9l 'resting on the plastic stopper 93'.

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The one picked up by the weft thread clamping device 44 ' Weft thread 12, originally a warp thread, differs through its fixed clamping in the fabric 7 and its due to the partial weaving of the original weft threads 8, now warp threads, predetermined length that after the weft thread 12, originally warp thread, has been brought through the seam shed 11 when the weft thread 12 reaches the extended position of the weft thread 12, after it has been brought through by means of the insertion arm 43 ' Spring force of the tension spring 82 'holding the right-angled swivel arm 76' against the rear stop bolt 85 'creates a tensile force in the weft thread 12 and this with the further retraction of the plug arm 43 ', the tensile force of the weft thread 12, originally a warp thread, increases, that the L-shaped swivel arm 76 'so length a. Turns against the seam weaving direction until it rests against a front stop bolt 99 '. The pivoting movement of the L-shaped pivot arm 76 'triggered by the tensile force of the weft thread 12 in the extended position creates a reaction force which the weft thread 12 is brought into a position parallel to the woven seam 13. The reverse reversal point of the stroke movement of the plug-in poor 43 'is designed so that after reaching this parallel position of the weft thread 12 from the weft thread clamping device 44 '

[is pulled out. The weft thread clamping device 44 'engages,

as described above, the now weft thread 12 at the end of the seam shed 11. Then the weft thread clamp = \ direction 44 'via the toothing 45' causes it to move out of the Pull out the seam shed 11, the weft thread 12 being pulled through with it.

In the previous description of the exemplary embodiment, the use of a sley 6 , which is generally known in weaving technology, was assumed. '

- 34 - GP 444

This sley 6 regulates, firstly, the pushing of the weft thread onto the fabric and, secondly, compliance with the defined distance between the individual warp threads.

Since in the seam weaving process both the weft threads 10, originally warp threads, and the warp threads 8, originally weft threads, have a wave structure as a result of the previous weaving process, the weft threads 12 introduced into the corresponding seam sheds 11 jump through the weft threads 12 assigned to them by the sley 6 caused the weft thread 12 to be pushed onto the woven seam 13 in its original position predetermined by the Wsb process. A displacement of the weft thread 12, originally warp thread, and also the warp thread 8, originally weft threads, introduced into the corresponding seam shed 11 and pushed in through the sley 6, is no longer possible without external interference, even when the seam shed 11 is still open, since this prevents the wave structure of the warp threads 8, originally weft threads, and the weft threads 12, originally warp threads, predetermined by the weaving process, in a form-fitting manner.

Each individual type of fabric requires a special sley 6; the manufacture of a sley is, however, quite laborious. In the present weaving process, the sley 6 has only one task of pushing the respective weft thread 12 onto the woven seam 13. Since the thread structure does not allow the warp threads 8 and the weft threads 12 to be displaced against one another even when the seam shed 11 is still open, in a further embodiment of the invention the weft thread 12 can be pushed onto the woven seam 13 using a needle roller rotatable in the frame G. 100 (FIG. 21), which can be used in the same shape for all types of tissue.

- 35 - GP 444

The needle roller 100 rotatably mounted in the frame consists essentially of a shaft 101 on which its Longitudinal axis of two opposing rows of needles consisting of a plurality of flexible needles 102 Are arranged helically.

The first of these helical, opposite rows of needles is right-handed and the second opposite row is arranged left-handed.

This measure is necessary so that the weft thread 12 introduced into the seam shed 11, originally a warp thread, is digitally pushed from the exit point of the weft thread 12 from the fabric to the woven seam 13, namely in Individual steps corresponding to the arrangement of the flexible needles 102.

The needle roller 100 is activated by a stepping motor 103

driven, with one in rhythm with the weaving process

leads.

180 ° limited and then intermittent rotational movement

Due to the rotational rotational movement of the needle roller 100 about its longitudinal axis, which is limited to 180 ° and then intermittently the individual needles 102 of the needle roller brush past the weft thread 12, originally a warp thread, which was pushed onto the woven seam 13, and leave scratch marks on it. Such scratch marks can possibly cause damage of the fabric tape in the area of the woven seam 13.

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- 36 - GP 444

If such scratches have to be avoided, dae The weft threads 12 are pushed into the seam shed 11 by means of Z-shaped needles 104, which are arranged next to one another in a guide bed 105, are individually axially displaceable and at their front Z end into the seam shed reach in (Fig. 22).

The guide bed 105 is firmly connected to the frame G and consists of a base plate 106 and two in this Base plate 106 fixedly mounted guide rods 107 on which rigid metal sheets 109 provided with two bores 108 and spacer sleeves 110 are pushed alternately, first a sheet metal 109, then a spacer sleeve 110 on each of a guide rod 107, and so on, and finally a sheet metal 109. Each spacer sleeve 110 has a length corresponding to the cross section of a Z needle 104 and thus enables the longitudinal axial displacement of the associated Z needle from one spacer sleeve 110 to the next.

The height spacing of the guide rods 107 in the area of the Woven seam 13 spanning base plate 106 is dimensioned so that between the base plate 106 and the outer surface of a The Z-needles 104 fit into each of the spacer sleeves 110 pushed onto the guide rods 107 so as to be displaceable without play (FIGS. 22 and 24).

With this structure of the guide bed, the Z-needles can be moved back and forth in the weaving direction without twisting. the Displacement of the Z needles 104 for the purpose of pushing the weft thread 12, originally a warp thread, introduced into the corresponding seam shed 11, against the seam weaving direction takes place by means of a gate 111 with a groove 112 worked in at right angles to the seam weaving direction in the first third of the total length of the gate 111, in the second third curved against the seam weaving direction and in the last third again at right angles to the seam direction, the total length the backdrop 111 corresponds to three times the woven seam width and

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the individual Z needles 104 with their rear ends in the groove 112 engage. The gate 111 is slidably mounted on two special gate guide rods 113 at right angles to the seam weaving direction.

The link guide rods 113 are each on one side of the base plate 106 in one in the base plate 106 in Seam direction displaceable and against the seam weaving direction of an adjustable compression spring 114 (helical spring or Pressurized air cylinder) preloaded sliding element 115 mounted. The common displacement of the two link guide rods 113 and thus also those mounted on them Coulisse 111 is therefore necessary so that the step-by-step advance of the frame G cannot have a tolerance-based reaction on the pushing of the weft thread 12, originally a warp thread, introduced into the seam shed 11 onto the woven seam 13 (FIG. 26).

The link 111 is firmly connected to a toothed belt drive 116 (or also cable drive) and is driven by this with the aid of a stepping motor 117 in the cycle of the seam weaving process from the corresponding side of the woven seam 13 to the other Side shifted and vice versa.

As a result of this displacement of the link 111 from one side of the woven seam 13 to the other and vice versa, the Z-shaped bent and lead with the rear end into the groove the connecting link 111 engaging Z-needles 104 one after the other an axial shift corresponding to the groove path up to the woven seam 13 and back to the starting position.

- 38 - GP 444

Through this, which takes place in the course of the seam weaving process Displacement of the link 111 and thus also of the individual Z needles 104 is the in the seam shed 11 with the help of Insert arm 43 'inserted weft thread 12, originally Warp thread, from the exit point of the weft thread 12, originally warp thread, from the edge of the fabric 7 gradually pushed to the woven seam 13, the weft thread 12, as already explained in the description of the needle roller 100, without having to take any additional measure, in the position predetermined by the weaving process remains lying even when the seam shed 11 is still open.

The above-described link 111 has the disadvantage that by deflecting the needle ends in the arcuate Middle part of the groove 112 between the Z needles 104 and the gate 111 a relatively high friction occurs. This friction leads to increased wear and also to an increase in the drive power for the gate 111. In one structurally more favorable design of the link 111 is the axial displacement, the Z needles 104 no longer by the Arcuate curve piece of the groove 112 in the second third of the total length of the link 111 is brought about, but by a rotatable roller 118 used instead of the curve piece (Fig. 27).

By pushing the in the seam shed 11 with the help of the Stsekarmes 43 ^; introduced weft thread 12, originally warp thread, with individual Z needles 104 to be displaced axially in the seam weaving direction through the link 111, the drive power for pushing the weft thread 12,

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originally warp thread, compared to the sley 6 conventionally used in weaving technology and also compared to the Needle roller 100 can be lowered.

Provided that the jacquard machine 5 has a sufficient number of cords 119, it is possible to achieve a three-stage lifting of the warp threads 8. For this purpose, the cords 119 of the jacquard machine 5 are connected to one another by, in the case of an example of 601 cords, the first cord C with the six hundred first string, the second string with the six hundredth cord, the third cord with the five hundred ninety-ninth cord, and so on. The interconnected cords 119 form loops which run around a summing roller 120. This device reduces the time required for the seam weaving process by approximately cut by half without increasing the working speed of the individual functions of the seam loom must be (Fig. 28).

A special cord 122 is attached to a rotation axis 121 of the summing roller 120, in which a main lifting element 123 for the respective warp thread 8 is inserted. in the A further course of a cord 122, it is guided around a rotatably mounted deflection roller 124 and on one in the frame G attached tension spring 125,

The jacquard machine 5 is made of punch cards in a known manner controlled. The jacquard perforated card in question here is perforated according to the cycle of the weaving process and makes it possible to raise the main lifting element 123 in three stages and thus to form two seam sheds 11, 11 'at the same time, whereby the seam shed 11 is created above and the seam shed 11 'below the middle of the weave (shown in FIG. 29).

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If the number of cords 119 of the jacquard machine 5 is not sufficient to proceed in this way, a second jacquard machine 126 can be attached next to the jacquard machine 5, which are connected to one another in a rotationally fixed manner via a common shaft 127. The cords 119, 128 of the two jacquard machines 5, 126 are now connected crosswise from machine to machine according to the principle described above, for example by connecting the first cord 119 of the first jacquard machine 5 to the corresponding first cord 128 of the second jacquard machine 126 and so on . The simultaneous formation of two seam sheds 11, 11 'then takes place as described above, in that the punch cards of the two jacquard machines 5, 126 are matched accordingly.

8 claims for protection

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Claims (8)

t ι rt fl · 5 · · · · · 41 - Claims for protection 1. Device for creating a woven seam for connection There are four open ends of the tissue, especially at the corner the production of an endless fabric belt e.g. for the paper industry by partially fraying the fabric ends and the weft threads of one fabric end as a warp thread in the other Gevi / e end in the way woven in so that the weft threads of one ^ end of weave in its new quality as a warp thread in the respective seam compartments of the other end of the fabric introduced v / earth and vice versa, ^{characterized in that the device consists of mirror-inverted and otherwise identical machine halves (M, M 1} ), which are opposite to one another and are mounted on a common displaceable frame (G) equipped with a stepping motor (3), so \ i / ie from one common jacquard machine (5) and a likewise common loading device (6, 100, 104) with clock generator (47,103,117), each machine -, - v. half (M, M ¹ ) the following, in the cycle of the seam weaving The process of interacting elements contains: - a number on the cords of the jacquard machine (5) attached auxiliary lifting elements (57), - a separator (14, 53, 58, 70) with clock generator (25, 64) that can be controlled in time with the seam weaving process - a gripping element (32) with stepper motor (33) that can be controlled in the cycle of the seam weaving process, - And finally a plug arm (43 ', 43) provided with a weft thread clamping device (44', 44) Stepper motor (46). «· It ·· t - 42 - 2. Device according to claim 1, characterized in that each separator (14, 53) is composed in a thread-like manner from a row of alternately thinner and thicker disks (17, 18) placed on a common separator shaft (15) by the thicker disks (18 ) a thickness that corresponds to the thickness of the threads (10) to be woven, and the difference in diameter between the thicker (18) and thinner disks (17) is sufficient to allow the structure of the threads to be woven (10 ), whereby the first disk, seen against the weaving direction, serves as an inlet disk (16) and the last disk, seen in the same direction, serves as an outlet disk (19) and both the thinner disks (17) and the thicker disks (18) are cut laterally and thread-like are pre-bent. 3. Apparatus according to claim 1, characterized in that each separator (53) only ever a single one thicker disc (18), which between a provided with a metric thread on its surface Ring (55), the inlet washer (16) and the The outlet disc (19) is jammed. 4. Apparatus according to claim 1, characterized in that each separator consists of one each from aerodynamically shaped Baffles (60, 61, 62) existing wind tunnel and an air nozzle (58) protruding into them is, the air flow generated by the air nozzle, in the wind tunnel (60, 61, 62) three-dimensional deflected, acts as a gripper and guide of the weft thread (12) to be woven in. 5. Apparatus according to claim 1, characterized in that at the exit point of each of the weave of the woven strip (38) released weft 43 - dens (12) one from one dreftenden in time with the weaving process Existing shaft with at least one separator needle (71) fastened at right angles to this shaft Needle separator (70) is arranged. 6. The device according to claim 1, characterized by a controlled in the course and in the cycle of the seam vi / eb process, on a two-legged swivel arm (76 ¹ ) and back and forth through the respectively formed seam weaving shed (11) displaceable, from one on the frame (G ) ζ attached stepper motor (46) driven tubular Plug-in arm (43 ¹ ), in the interior of the tube of which at least one ^{steel wire (90, 91 ') bent at its free end and fastened to the swivel arm (76 1} ) is arranged so as to be displaceable relative to the plug-in arm (43 ^1). 7. Apparatus according to claim 1, characterized in that one in the frame (G) rotatably mounted as a loading device and by a stepping motor (103) also mounted in the frame (G) driven needle roller (100) is arranged, on the rotating shaft (101) of which there are two opposing, out of a large number of flexurally elastic Needles (102) existing row of needles in a helical shape are arranged such that the helix one row of needles is right-handed and the helix of the second row of needles is left-handed. 8. The device according to claim 1, characterized in that a number bent approximately at right angles as a loading device, e.g. Z-shaped needles (104), which are parallel to each other and can be moved lengthways on a with a stepping motor (117) together on the frame (G) attached guide bed (105) in the cycle of the weaving process and are arranged to be slidable, with each • I · · - 44 - one end protrudes into a curved guide groove (112) located in a guide slot (111) that is slidably attached to the guide bed (105) and reach into the seam pocket (11) with the bent free needle part. For the applicants: Tdfe * Artntoft Patent attorney