DE2120583A1 - Method for shedding in weaving machines, in particular in weaving machines with multiple insertion of wefts, and a device for carrying out this method - Google Patents

Description

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PATENT ADVOCATE

April 22, 1971 Application files: 75-325

FATENTANNELDUNQ V ^ zkumnfr üstav bavlnarskt, Usti nad Or lic!

"Method for shedding in weaving machines, especially in weaving machines with multiple one» carrying shots, as well as equipment for carrying out this procedure "

The invention relates to a method and a device for shedding in weaving machines with multiple insertion of wefts when fatroning with multiple weaves along the chain according to a program which is registered in a storage unit and which is formed according to the requested cough will.

The known weaving machines use jacquard devices, with each pick belonging to a card from which the stroke of each warp thread is taken in the pattern repeat along the warp. After scanning the indication from the card the appropriate shed is formed in the entire width of the warp, the weft insertion takes place, followed by a new one

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Subject change follows, etc. The well-known dobby machines work in a similar way. The achievement of someone who works like this Machine is very low. It also occurs with these Looms place a great deal of stress on the warp, since a high shed is required for a large shuttle. Even the dimensions of a loom with one Jaequard facilities are large, especially when it comes to the height of the machine.

Weaving machines have been developed - but not that Jacquard type - who work with a wave shed that repeats itself harmoniously, which are characterized by high productivity and relatively small dimensions. So that the loom with a wavy, harmonious repetitive Faeh can work and in each amplitude of the same a weft insertion device runs, are facilities designed for the formation of a wavy professional movement. With these the individual tie rods are with F their shafts arranged one behind the other in sections been lined up, but the means that control the position of the warp threads, as a result of the space required for a separate one Drive mechanism not formed one behind the other, but had to be offset laterally from one another.

In this known device, therefore, in which each pull rod is lowered and lifted up, ₉ separate drive means are necessary for each pull rod, is.B.

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common, extending along * the entire width of the loom extending drive shaft are arranged, and usually from two-armed levers that transmit the rotating movement of the said eccentric pins, respectively offset at an angle to one another Ensure that the cams are angularly offset against each other on the corresponding tie rods of the shafts.

Another known device for the formation of a wavy repeated shed movement, in particular the movement of the strands that determine the angle of the shed the end of which the fabric is enclosed and a weaver's archer always runs with the villain when it vibrates, consists of the aforementioned strands, which are attached to at least one Wire is drawn, which is formed freely bendable and which is held at certain distances by plates, which move up and down with a phase shift, and which cause a wave-like movement in the wire mentioned. The pendulum motion of the sinkers is generated by means of the helically wound actuating shafts going across the weaving machine.

Other known bodies for the formation of a wavy Shed in weaving machines with multiple insertion of wefts consist of rotating cams that are in a Cam drums are strung together, which are located on a common feeder, which is stored transversely in the weaving machine

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shaft is where each cam is always opposite the adjacent cam is arranged with a certain phase shift, when it is rotated to a certain Looked! the threads act in a chain system and thus them directly granted the necessary Pachhub in the order that is determined by the arrangement of the squats.

To these devices one can add among others the system of the electromagnetic, on a tensioned elastic Wire-suspended dialing means for the strand lift count, with small weights on the mentioned at appropriate intervals Wire are suspended, which also act as an electro aagnetanker and the like.

Each of these known bodies for the formation of a wavy specialist movement, the · tie rods of the shafts, the Strands or directly from the warp threads, e.g. lust in its white the problem of a continuous shed, but each of these facilities has its specific disadvantages like i.B »a very high wear of the warp threads, high demands in terms of production and maintenance, and in most cases the operating speed is limited.

It is particularly important to emphasize that the facilities known up to now mainly focus on the formation and completion ' the means are directed, by means of which a wavy and continuous shed movement is to be realized, wherein not yet important to a sufficient degree

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technological needs have been taken into account, particularly from the point of view of the need for weaving with any shaft binding, i.e. cartridges in the chain direction *

The known facilities are in principle lacking - and in In some cases this eliminates your construction - a possibility to carry out a subject change during the weaving process according to a certain program that is stored in the memory and that is required Pattern is reproduced.

The invention avoids all the mentioned disadvantages of the known devices and processes and at the same time has the task of providing a simple method of shedding to create in weaving machines, especially in weaving machines with multiple insertion of wefts. Such a procedure would also mean a very considerable spread of the usability of the machines mentioned, also for weaving any weave pattern in shaft weaves. The task is achieved according to the invention in that the means for Control of the position of the warp threads different from each other be classified, with alternating paths in links that run across the length of the warp threads, the selection of the paths in the links by a program setting of the control elements at the place of the narrowing of the mentioned Orbits.

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Ale particularly beneficial for the realization of the Srfissdiing applies to an institution whose principle consists in * that the means that control the position of the warp threads, different from each other in engagement with at least stalk regularly converging paths that are continuous in a row along the warp threads are formed which, according to the program, have three layers at the points of maximum formation of the tracks with a » adjustable actuators are provided that the Limit passage through the mentioned tracks.

With the device according to the invention, weifeerenfewiekelt is still in the Sirni® ₉ that a set τοη links iron Selefctionseinriehtung is ziageoi-änet, which has at least one radially movable plate around the link range, which is provided with control surfaces iat _r . which protrude into the path of the actuating arms of the continuous control elements.

A simple construction according to the invention is then reachable when the outer, uaklappharen layers of the dam members a cross connection of two opposite @ ii Form a group that binds two adjacent ones in parallel Pass through limbs.

is © s also before ^j t @ ilfeaf t _s when in his QIea "r series in the Äbstänöen, the" Ses? Vebfaeb correspond, limbs üdLt St®uargii @ äe ^ u used

Another embodiment, which is particularly advantageous from the standpoint of security, consists in that a spring-loaded locking lever is assigned to each control link in the link row, which is movement of the link along the plate in contact with the surface of an immovable lock, which " is arranged next to the board.

of the invention, it is particularly from the standpoint of reliable control of the moving board Advantageously, when the board is arranged by means of lifting means of an infinite band, there are various selection pins that sit down, with the band mentioned Drive of the loom is connected.

An exemplary embodiment of the invention is shown in the drawing and is described in more detail below. Seigen it

Fig. 1 is a schematic representation of the arrangement of a goose switchgear;

Fig. 2 is a schematic representation of the effect of Board on the setting of the control element in the middle position of the board;

Fig. 3 is a section through one of the members of the passage through the sinker;

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Pig. 4 shows a schematic representation of the effect of the board on the setting of the control element both bases of the board;

5 shows a section through several rows of the links as they pass through the board space;

6 shows a partial view of the assembly of six rows of links arranged next to one another.

The infinite band 1 (Fig. 1) of compartment members 2 is mounted on a star wheel 3 and is bsw by rollers h (Fig. 1, 5,6) in the grooves 5 (Fig. 5,6). guided by the star wheel 5a. In the grooved tracks 6, 6b, which are formed in the links 2, engage the rollers 7 of the rods 8, which are slidably guided in guide plates 9 »10 and 11 and in the upper part a part of the shafts with the required number of the position of the warp threads controlling means carry, z «B. the strands 12.

"On the link 2a, the grooves 6, 6b form an intersection 6a in which the control link 13 is accommodated. The link 2b has grooves 6,6b. The control links 13 are rotatably mounted on the link body 2a and are provided with actuating arms 14 and 15 ( 2, 3) The arm 15 is equipped with a notch 16 and suitably adapted edges 17 and 18. With the cutout 16 and the edges 17, 18 the pin 19 of the white-armed locking lever 20 works with the pivotable around the hole 21 of the link body 2a

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is stored. The double-armed lever 20 is based on a spring 22 ,. which is mounted in the link body 2a and carries a rotatably arranged roller 24 on the arm 23. The roller 24 works with the immovable lock 25, which is provided with an inclined plane 26, on with a plane 27 and a rounding 28 (Fig. 2). In the sections of the immovable lock 25 are in pushed onto the row of links 2 plates 29 in the radial direction, which are provided with a recess 30, which is separated into two parts. Part 30a narrows symmetrical in the direction of movement of the links 2 and merges into the part 30b, which is a straight shape Slit with a uniform width has pie plates 29 are still in the cutouts of the guide plate 31 guided and connected to the arms 33 in an articulated manner by means of the pull rod 32. The arms 33 are pivotable of the rod 34 and provided with rollers 35. the Arms 33 are connected to spring 36. The roles of the arms 33 are supported on the surface of the pins of the selection device. The pencils. 37 of the selection device are not equally high; the pin 37a is the highest, pin 37b medium high and pin 37o low.

The selection device is formed from the plates 38, the articulated and connected by the plate 39 and the Prism 40 are guided by a chain transmission with

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the shaft 42, the star wheels 5a or old another corresponding rotating shaft of the machine is connected.

Between the links 2a and 2b between the links of the infinite band 1 spacer inserts 43 (Fig. 5) are turned on, through which a space between the links 2a and 2b for the passage of the sinkers 29 and the rod 8 is created. On both sides of the infinite Belt 1 chain links 44 (Fig. 6) are attached. the Chain links 44 are with the links 2 of the unendiiatien Band 1 connected by bolts 46 and nuts 47 and adapted on the ends for connection to the rod 45, which connects the links 2 with an infinite band 1 in an articulated manner.

The shaft weaving device described according to the invention works as follows:

The star wheel 3 s öas through different types of gear into one Rotational movement can be brought, displaces the infinite Band 1 in a continuous movement in the direction of the arrow Ia (Fig. D- By di® movement of the band 1 In The links 2a and 2b move transversely to an infinite range via the warp threads or otherwise you3? ®h the (Se-schirraiw * wc » the bulbs 7 of the pillars 3 through each other alternating grooves 6- 6b hiMurehgeiieii and the Lag® der

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Rods 8 ait the means 12 determine the position control of the warp threads, not shown.

The rollers 7 passing through the link 2a, which enter the roughness of the greatest mutual approximation or into the intersection 6a of the grooves 6 and 6b, where of their further passage, i.e. whether they are behind the intersection ' continue through the upper groove 6 or lower groove 6b, i.e. whether the shed in the following shed is the associated shaft in the upper or lower position, the appropriately set position of the control member 13 decides that with the movement of the member 2a over the entire crockery space the passage of all rollers 7 and all other parts of the corresponding shaft limited by the aforementioned intersection 6a. This successively changes the location of the whole Shaft determined in the relevant specialist shaft, which together with the movement of the infinite band 1, and runs across the entire width of the dishes.

When the control member 13 is placed in the central position 13a (Fig. 1), takes place between the preceding and subsequent shed no mutual change in the position of the shaft concerned. The rollers 7 of the rods 8 come to the intersection 6a through the upper groove 6 and look after the intersection 6a again in the upper one Groove 6. When the Bollen 7 in the intersection 6a again come through the lower groove 6b, they continue again after the intersection 6a through the lower groove 6b.

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When the control member 13 is set in position 13b (Pig. 3), it determines the passage of the rollers 7 through the intersection 6a from the upper groove 6 into the lower groove 6b and thereby causes a change in position of the relevant shaft for the subsequent specialist shaft from the upper to the lower layer. When the control member 13 is set in position 13c, it delimits the passage of the rollers 7 through the intersection 6a from the lower one. Groove 6b into the upper groove 6, which changes the position of the shaft in question for the subsequent shed is carried out from the lower to the upper layer.

By combining different position settings of the Control members 13 at the point of convergence of the grooves 6, 6a is any position in the members 2a determines each crockery shaft and thus also the location of the warp threads, not shown, in each shed. According to the invention, this results in any type of shaft binding of the tissue.

Appropriate setting of the control members 13 in the desired positions 13a, 13b, and 13c is made before entry the relevant members 2a in the crockery through the Passage of the actuating arm 14 of the control member 13 through the recess 30 of the board 2 carried out. The set position of the link 13 with the double-armed locking lever 20 is against arbitrary change in position

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for the entire duration of the passage in question Link 2a secured over the entire circumference.

The setting of the control members 13 in the required positions is carried out as follows:

The sinkers 29 'which are actuated by the arm 33 by means of a pull rod 32 and a spring 36 are by means of selection pins 37a, 37b, 37c of different heights set in three layers - the top, middle and bottom layers. The change in position of the sinkers 29 is in progress in the time in which the links 2b go through between the sinkers 29. If between the boards 29 the Go through links 2a, the sinkers 29 do not change their position, in the first phase of movement of the tape 1 in the direction of arrow 48 (Pig. 2,3) the rollers 24 of double-armed locking lever 20 come into contact with the inclined plane 26 of the immovable lock 25, as a result of which the double-armed locking lever is pivoted out during the further movement of the band 1! 20 takes place. Of the Pin 19 comes out of engagement with the slot 16 or the Edges 17 or 18, so that the control members 13 are briefly unlocked. After unlocking the location of the Control members 13 can make contact with the actuating arms 14 the surfaces 49 or 50 of the recess 30 of the plates 29 » whereby in the further movement of the links 2a

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Adjustment of the mentioned arms 14 and thereby also the Control members 13 with the arms 16 in the required Layers takes place.

In the middle position of the board 19, the control member 13 is adjusted to the middle position 13a (Fig. 2). In the upper position of the plate 29 (Fig. 3) - shown in dashed lines - there is a swing out ™ of the actuating arm 14 in the upper position and the control member 13 and its arm 15 in the lower position 13c. In the lower position of the board 29 - shown by a full line - the arm 14 is in the lower position and the Control member 13 and Arn 15 is pivoted into the upper position 13b.

During the passage of the actuating arms 14 through the recess 30 of the parts 30a, the knobs 24 of the double-armed locking lever 20 roll on the surface 27 of the immobile lock 25 *, thereby unlocking the position the control members 13 only the arms 14 and 15 lasts. When the actuating arms 14 have reached the end of the recess 30a and begin to move through the part 30b of the recess, the adjustment of the position of the control members 13 is complete, and the rollers 24 of the double-armed ones Locking levers 20 begin to roll on the curve of the immovable lock 25 * u, whereupon the double-armed locking levers 20 mentioned above are caused by the pressure of the spring 22

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By means of its pin 19, start the return movement into engagement with the slots 16 of the arm 15. This return movement takes place in the middle position 13a of the control member 13 or in engagement with the edge 18 or 17 in the upper or lower position of the control member 13. The securing of the position of the control members 13 by the one. the pins 19 engaged in the slots 16 or through supports on the edges 17,18 is carried out before the actuating arm 14 makes the passage through the recess 30 of the part 30b has completed. By securing the set position of the control members 13, these are prepared to be in the Enter Qeschirraum and the delimitation of the passage of all rollers 7 of the rods 8 through the crossover 6a of the slots 6, 6b in FIG Outlines 2a for the following specialist wave.

For each link group 2a of the infinite belt 1 simultaneously with the continuous sinkers 29 come under the Roll 35 of the arms 33 in the direction of arrow 51 (Fig. 1) new plates 38 of the selection device. Depending on the The type of selection pins 37a, 37b, 37c arranged thereon are the necessary changes in position of the sinkers 29 and the setting of the positions in the manner described the control members 13 carried out for the following specialist waves.

The shaft compartment device described, which is mainly for Looms with multiple compartments with multiple wefts

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portability is one of the possible alternative solutions.

The individual parts of the device can be arranged structurally differently. For example the control members 13 by changing the function of the arms 14 and 15 or by replacing them an arm can be arranged, and similarly, a change in securing the appropriately set position of the control member 13 are carried out. Different versions can be used when choosing the type of setting for the Position of the boards 29 and the type of adaptations of the selection device can be used. The band of Selection device can have both continuous and interrupted movement; For example, a perforated tape with different types of perforation can be used or a programming device with electromechanical or electromagnetic parts after appropriate adaptation of other parts of the subsequent mechanisms.

The shaft compartment device according to the invention can work with any number of harness shafts, depending on how many shafts it was designed for. A corresponding series of links 2 are built into the infinite band next to one another, which depends on how many harnesses the shaft device is designed for. _ y. _

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Claims (1)

De. Öleelitied üCaeaitttU 2120583 PATENT ADVOCATE PATENT CLAIMS I ₉ ) method for shedding in weaving machines, especially in weaving machines with multiple entries of wefts when cartoning with multiple binding along the warp according to a program entered in the memory, which is formed according to the desired pattern, characterized in that the means that the position control of the warp threads, arrange themselves differently from one another with alternating paths in links that continue transversely in the vicinity of the warp threads. 2. The method for shedding according to claim 1, characterized in that the path selection in the members by the program setting of the control members at the point of convergence of the mentioned Orbits. 3 · device for performing the method according to claim 1 and 2, characterized in that the the position of the warp threads controlling means (12) are mutually different in engagement with at least two regularly converging tracks (6,6b) which are in one Row around the continuous links (2) are formed, - 18 -109846/1316 those at the point of closest approach to the web (6, 6b) with programmable in three positions adjustable ble control members (13) are provided which limit the passage through the tracks (6, 6b). 4 .. Device according to claim 3, characterized in that a system of members (2) a selection device is assigned, which consists of at least one radially around the system of links (2) movable plate (29), which is provided with actuating surfaces (30a, 30b), which in the path of Engage the actuating arms (14) of the continuous control members (13). 5. Device according to claim 3 s characterized g e k e η η -ζ e i c £ a e t · ,, that the outer overturnable layers of the actuators (13) form a diagonal connection between two opposing tracks (6, 6b) which run parallel to at least two adjacent links (2b). 6th Device according to Claim 3 »characterized geke η η τ is characterized in that, the ölia & er (2a) are inserted with the actuators (13) in the series of links (2) at intervals corresponding to the length of the compartment shaft. 7. Device according to claims 3 and 4, characterized - 39 - 109846/1318 characterized in that each actuating member (13) in the row of members (2a) is assigned a spring-loaded locking lever (20), which in the passage of the member (2a) along the plate (29) and in contact with the surface (26, 27 »28) of the immovable lock (25), which is arranged next to the plate. 8. Device according to claim 4, characterized in that the board (29) by means of lifting means (32, 33 »35) an infinite band (38) with different height pins (37 a-c) is assigned, the belt (38) with the drive the loom is connected. 109846/1316 Blank page