DE612276C - Method of knitting two or more threads simultaneously and securely separated on flat weft knitting machines and device for carrying out the method - Google Patents

Description

Method of using two or more threads at the same time on flat weft knitting machines safe to cultivate and distribute separately, and device for executing the Method The invention relates to a method on flat weft knitting machines, with the kulating of two or more threads, these are safely separated into the for each thread provided throat of the sinker and distribution plate are placed.

In the previously known flat weft knitting machines, a certain Security in the separate laying of the threads in the throats of the sinkers, e.g. when working with cladding, achieved by the fact that the two thread guides, which lay the two threads, run one behind the other at a certain distance, so that the thread laid by the first thread guide, the thread hanging on the knock-off comb Goods from is at a more acute angle to the horizontal than that from the following Thread laid thread guide, always below the thread of the following thread guide is placed in the throat of the sinker. This procedure can be natural can be applied to the finest, practically occurring division, but there are none Certainty that the two threads are actually in the desired position from the sinkers be calulated and distributed, so that a completely pure plating, reinforcement, Handle plush lining thread laying or patterns with reversible sinkers is hardly attainable, because the practical distances between the threads, as they are in front of the sinker, so are small, so that the slightest fling of one of the two threads is enough to get their to change the desired position in the sinker groove. Through the advance of the first thread guide, who lays the thread for the basic fabric, in front of the second thread guide, the one with the lowest possible lead in front of the respective culminating sinker, the plating thread or reinforcing thread or sets the pattern thread, the speed of movement of the thread guide must be known compared to the movement of the thread guide in the production of smooth goods be reduced, d. H. it must be when working from clad, reinforced, with Plush-provided or reversible-clad goods, etc., are calculated much more slowly than with smooth goods.

Various attempts have been made to eliminate these disadvantages and at the same time to be able to work with three threads by working on a thread guide, which leads two or three threads at the same time, two or three one below the other Exit points for the threads are arranged, each of which is at the same height that they are caught in the sinkers by the throat allocated to each thread. This well-known thread guides must protrude between the sinkers and distributing sinkers, so that the application of this method or the use of the procedural Device is only possible with the divisions in which the distance between the sinker and the following distribution board is so large that the thread tube of the thread guide can stand in between without looking from the side from the standing Ktilier- or distribution board to be touched. To with this known device a To get a reasonably secure placement in the sinker grooves, the advance of the Thread guides are kept as short as possible, from which the well-known The consequence of this is that work is carried out at an even lower speed must than in the previously mentioned known plating process with two thread guides, which are with lead in front of the balancing sinkers and with lead below each other move. On the other hand, it is not ruled out in the second established procedure, that by the centrifugal movement of the thread parts, which are so small due to the short advance as possible, between the exit point from the thread guide _ and the hanging on the knockdown comb at the beginning or at the end of the row of stitches and between the exit point on the thread guide and that of the respective position of the thread guide accordingly leveling sinker in spite of the in a thread guide one below the other for the two or three threads is an unwanted one Change in the position of the threads in the sinker grooves and consequently in the laying of the Threads in the goods can occur.

Attempts have also been made to keep the threads separate when kissing to achieve that the sinkers receive two grooves in which the threads should lay. However, the desired pure separation could not be achieved with this either because there was no certainty that every thread actually was in the intended throat. Also stepped by necessarily more or less curved connecting edge between the upper and lower throat when »applying« a tension-producing displacement of the culminated in the upper throat to the loop Thread when this comes up from the downward-going chair needles for application the sinker beak has been pulled.

Also the well-known long nose between the two throats of such sinkers there is no certainty that the sutures have been placed in the correct throat; the threads will be only in the time of the killing, once they are in the throats, held securely in these, even if relocation for the reasons mentioned above the sutures went down the wrong throat.

Another known plating device provides secure laying of the threads on the needle shafts, when using two to darbe or fiber genus different threads to produce any pattern by pattern-based distribution of the two threads across the entire width of the fabric with the help of sample plates takes place, which are arranged between the needles and opposite the sinkers and by an axial displacement effected in the direction of the needle shafts before the kulating to each other put one of the two threads of the needle hook first in order to thereby bring about its position on the right side of the knitted fabric. This is true achieved the position of the threads on the needle shafts in the desired manner, but not the one you want. Laying the sutures in the throat or throats of the killer and Distribution boards. If the two threads are incorrectly laid in the sinker groove from the For the aforementioned reasons, there is of course also an incorrect laying of the threads on the needle shafts by the sample sinkers of said known device.

The inventive method all the disadvantages are Laying the threads in the throat of the sinkers eliminated. Following this procedure will be the threads when kulating immediately after emerging from those standing in front of each other, without lead to each other and with the usual lead to the counting plate jointly moving thread guides, the outlet openings of which are above the upper edge of the Distribution board stand, mechanically separated, the inevitable separation so is maintained for a long time until it is throughkulated and the distribution boards are ready to distribute move forward.

Special cutting tools are used as a device for carrying out the process proposed that cause the separation of the threads emerging from the thread guides, of which one is in front of each distribution board and which, reaching through the needles, Remain in this "separated position" until the distribution begins During distribution, these cutting tools move in the direction of movement of the distribution plates, rushing in front of these, so through between the threads held apart by them in their position outside of the fecal needles that harmful displacement of the separate threads are not done. Remain in this position outside of the chair needles the cutting tools until the sinker and distribution sinkers are knocked off return to their basic position during which work sequence of the boards the separating tools, hurrying behind the distribution boards, back into their separated position swing in.

These cutting tools are combined in a bar to form a comb, which is like this is arranged in front of the chair needles that the tip of each cutting tool is almost in the amount of Thread exit points of the thread guide and between the trajectories of the thread-guiding thread guides. Every parting tool is from the end of its tip in its further part towards the shaft to be so shaped and widens in the vertical plane in such a way that in the separated position of the cutting tools in front of and behind the point through double-throated sinkers with a straight vertical edge between the two throats necessarily in the distance of the two sinker grooves are placed apart, with the upper edge of each cutting tool with the upper leg of the upper groove of the blank and the lower edge of each cutting tool with the lower leg of the lower sinker throat the position of the threads downwards and form bounding edges at the top.

Only through the cutting tools according to the invention has it become possible in the flat weft knitting machine. with the circuit boards according to the invention certainly two or to insert more threads separately at the same time, i.e. with such sinkers which no nose is arranged between the two throats, which keep the separated which should serve both threads. This keeping is provided according to the invention the cutting tools.

According to another inventive embodiment of the device for Execution of the procedure for separating three threads separating tools, united in a bar to form a comb, suggested that provided with two points are, which in the separated position with their end almost at the level of the thread exit points the thread guides stand between the trajectories of the thread guides and those in their further part after the shank of the cutting tool are shaped and turned into widen the vertical plane so that the threads in front of and behind the tips by two-throated Kuller and distribution plates with straight edges according to the invention between the two throats necessarily at the required distance from each other with the upper edge of the front tip of the cutting tool with the upper leg of the upper sinker throat and the lower edge of the rear tip limit the position of the threads with the lower leg of the lower sinker groove, while the middle thread from the bottom edge of the front lace and the top Edge of the rear tip is secured in place.

For the production of reversible clad goods with the inventive Process, reciprocating sinkers that interact with the cutting tools are provided, which have two grooves connected to one another by a straight edge, the upper throat is intended for the plating thread and the lower throat for the base thread and the known turning bulge is provided on the beak. The ones with the Coulier sinkers cooperating distribution sinkers have in the same position as with sinkers a plating thread fillet, which is connected by a straight edge with the known turning slot is connected, which begins at the point where the vertex of the base thread throat of the sinker lies.

The drawing shows, for example, embodiments of the device to carry out the method, namely show: Fig. i to q. a work sequence a cutting tool for two threads, Fig. 5 the head of a sinker for two-part Working according to Figs. I to 4, Fig. 6 the head of a sinker according to Fig. 5 belonging distribution board, Fig. 7 a front view of the thread position during the couling in the position of the cutting tools (according to Fig. 2), in section through the Cutting tools in the direction VII-VII (Fig. 2), Fig. 8 is a top view of the location of the Cutting tools (according to Fig. 2) for the sinkers and chair needles and the thread layer, Fig. 9 a cutting tool for three threads, Fig. Io a front view of the thread layer at triple work during the cultivating (with cut cutting tools), Fig. I i Separation position of a cutting tool in the manufacture of two-part reversible cladding Ware, Fig. 12 and 13 plates for this, Fig. 14 the side view of the position of a Separating tool for separating two threads when working with four standing in front of each other Thread guides.

When using the erfin@dungsgemä.9en procedure, all Thread guide, regardless of whether you are working with two or three threads, in one Height above the upper edge of the distribution plates and always in front of one another in the direction of couling, like fig. i to q.,; and Figures 8, 9 and i o and Figures i i and 14 show.

When separating two threads according to the invention for production easier or reinforced plating, the two threads 5 and 6 (Fig. i to 4) are preferred guided by the rear thread guide i and the front thread guide 3 while the middle thread guide 2 is provided as a reinforcement thread guide. Furthermore, except for the lack of advance between the thread guides, their position is the same, as previously known. Your thread outlet opening is slightly above the upper edge 7a the Distribution board; and slightly lower than the upper edge 8a of the Sinker board B. The distribution sinkers 7 and the sinker sinkers 8 are known in the art Way in the sinker head, from the one in Figs. 1, 2, 3, q., 9, 11 and 14 Part of the sinker head upper part io and part of the sinker head lower part i i are shown. The chair needle i2 is carried and moved by the needle bar 13 in a known manner between the individual leaves of the stop comb 14., on which the goods 15 rests. The opposing movements of these essential tools the flat weft knitting machine, namely the movement of sinkers and chair needles 12 and the knock-off comb 14 change when working according to the invention Procedure in any way. Only the three thread guides 1, 2, 3 lead together the same movement that in the previously known way only one thread guide for smooth goods, z. B. the thread guide i executed. The two thread guides i and 2 or all three thread guides 1, 2, 3 move as a coherent whole with the normal speed, as it is usual for the production of smooth goods, and with the usual course.

In front of each distribution board 7 there is a special cutting tool 16 (Figs. 7 and 8). All cutting tools are fixed in a bar 17 and in their entirety form a comb the length of the entire fontur. The shank 16a of the cutting tool 16 (Fig. 3) lies in the cutting position at an approximately right angle to the plane of the chair needles 12 (Fig. I). Its tip 16b is shaped so that the same in the separated position (Fig. I) with its end 169 almost between the outlet openings. the thread guides i and z step. The working process is as follows: Shortly before the couling begins, the cutting tool comb 16, 17 is in its cutting position (Fig. I), that is, the end 16s of its tip 16b of each cutting tool is at a very small distance below the height of the outlet openings of the thread guides 1, 2, 3 between the trajectories of the outlet openings of the two thread-laying thread guides, z. B. the thread guides i and 3, in a preferred embodiment between the movement path of the outlet openings of the thread-laying thread guide i and that of the thread-laying thread guide 2, so that the separation of the thread 5 from the remaining threads without horizontal adjustment of the cutting tool comb 16, 17 the cutting tools 16 takes place when the thread guides i and 2 lay thread. The separating unit Z> 16, 17 maintains this position until it has passed through, i.e. until the thread guides i, 2 and 3 have passed through a row (Fig. 2). The sinker 8 is moved forward (Fig. 2), then trimmed with an inclined edge 18 of the upper throat i9 the thread 6, which is held by the peak i 6b of the cutting tool 1 6 separated from the yarn 5, and pushes it with this inclined edge 18 so far down that it rests on the horizontal edge 16e of the cutting tool 16, which is at the same height as the groove i9, while the rear thread 5 on a straight connecting edge through the sloping lower edge 16d of the tip 16b on the cutting tool 16 g of the sinker 8 between the upper throat i9 and the lower throat 2o is pushed downwards until the thread 5 lies in the lower throat 20, which is at the same height as the lower horizontal edge 16e of the cutting tool shaft i6a, so that the two Threads 5 and 6 are held apart immovably by the shaft 16a of the cutting tool 16 or its edges 16c and 16e and lie in the lower groove 2o and the upper groove 19 of the sinker 8 gene. The shifting of the basic thread 5 belonging to the lower sinker groove 2o is not only effected by pushing the thread 5 downward through the forward-striving sinker 8 or its vertical edge 9 along the sloping lower edge 16d of the cutting tool tip 16b, but is also significantly facilitated by it that the threads 5 and 6 in themselves by their! Cutting tools in the inventive S inne secured position in the throats of the previous sinkers run obliquely downward and obliquely forward from the thread guides to the chair needles i2 (Fig.7, 8, 2 and io). With the forward movement of the distributing plates 7, the separating tool comb 16, 17 moves in the direction of the movement of the distributing plates that the separating tools in the end position of the distributing plates (Fig. 3) also have the end position of their movement when leaving the chair needles. The cutting tools maintain this position even during the reduction. The cutting tools are preferably moved out in a circular path so that the upper edges 16c and i6f and lower edges 16e and 16,1 as well as the end 169 of the tip 16b of the. The separating tools 16 which can be pivoted out do not cause any displacement of the culverted threads 5 and 6, which are kept separated by them up to the point of pivoting. After the distribution, the needles move in a known manner downwards and to the press and pull the loop located in the upper groove i9 or 7b of the sinker 8 or the distribution plate 7 down on the straight edge g or 7d securely onto the The thread loop of the basic thread 5 lying in the lower throat 2o or 7 "(Fig. 3). In the work sequence shown in Fig. 4, all stitch-forming tools move back into the basic position as shown in Fig. i , 2 and 3 are, as is known, at one or the other end of the row of stitches in order to resume their thread-laying movement at the moment when the other stitch-forming tools have reached their basic position At the moment of this work sequence recorded in Fig. 4 backwards in direction A, the needle bar moves up again in the coulier position in direction B, and the separating tool k Amm 16, 17 with the cutting tools 16 swivels, moving simultaneously with the blanks, in direction C into its separating position according to the invention.

When separating three threads according to the invention, a bar 21 carries cutting tools 22 provided with two points 22a and 22b (FIG. G). It is assumed that three thread guides 1, 2, 3 each lay a thread 23, 24, 25. The tip 22a of each severing tool 22 has the same position as the single tip i6b of the severing tool 16 for severing two threads (Fig. I), while the other tip 22b of each severing tool 22 with its end at the same height as the end of the tip 22a between the middle and front thread guides 2 and 3. In Fig. G, a sinker plate 8 and a distribution plate 38 are shown in the basic position. The sinker 8 as the Verteilplatine 38 hold between the upper throat 39 and 1 9 and the lower .Kehle 40 bzw.2o a straight, vertically extending edge 41 and g. This vertical edge 4.1 is so long that it is suitable for separating three threads according to the invention. When operating the sinker 8 formed according to the invention, the thread 25, which is guided by the front thread guide 3, is pressed by the upper edge of the throat ig against the upper edge 22c of the tip 22b of the cutting tool 22 and secured against arbitrary movement. The thread 24 from the thread guide 2 is guided through the lower edge 22h of the point 22b (Fig.g and io) down to the edge 22e of the point 22a and from this point 22a of the respective separating tool 22 protruding between the two thread guides i and 2 from the thread 23 separated. The basic thread 23 is guided from the straight edge 9 of the sinker 8 along the inclined edge 22t of the tip 22a down into the groove 2o (Figs. G and io). The inevitable downward movement of the threads through the cutting tools, caused by the forward movement of the sinkers, which are grooved according to the invention, is, as when working with two threads, also due to the position of the threads between the thread guide and throat of the previous one, which leads obliquely downwards and obliquely forward to the chair needles 12 Kulier sinker favored and relieved (see Fig. Io). The preceding distribution sinkers 38 distribute the threads cultivated by the sinkers 8 via their distribution point 39 and 4o for the thread 25 and 23, respectively, while the middle thread 24 is distributed to a distribution point on the straight edge 41, which corresponds to the sinker point on the straight edge g the sinker 8 corresponds. The movement and the shape of the movement of the cutting tool comb 21 is the same as that of the cutting tool comb 17 suitable for separating two threads according to Figs of the distribution plate 38 out between the chair needles and in the sequence in which all work tools return to their basic position (Fig. 4), it goes back from its outermost position through between the chair needles to its working position (Fig. 9).

To produce simple reversible clad goods by the method according to the invention, two threads must also be separated, which is done by the separating tool 16 in the manner described above (Fig. Ii). When applying the method according to the invention to this' work on the flat weft knitting machine, sinkers and distributing sinkers are used according to the invention which separate the base thread from the plating thread until after turning. The sinker 51 (4bb. Ii and 12) has two grooves for this purpose in addition to the turning bulge 51a, which is known per se. 52 and 53, which are connected to one another by a straight vertical edge 54 and in which, held apart by the respective cutting tool 16 in the manner according to the invention, the plating thread 55 and the base thread 56 are placed. The plating thread fillet 57 in the distribution plate 58 (Fig. Ii and 13) coincides in the basic position (Fig. Ii) after distribution with the plating thread fillet 52 in the sinker 51. The beginning of the turning slot 59 in the distribution plate 58 coincides in the basic position (Fig. Ir) and after distribution with the basic thread groove 53 of the sinker 51. The apex of the distributor plate groove 57 and the point on the distributor plate at which the turning slot 59 begins are connected according to the invention by a vertical edge 58a. The cutting tool according to the invention and the shape of the sinkers according to the invention make it difficult for a wrong thread to be turned and thus for errors to arise in the pattern.

Fig. 14 shows an example of the use of a for the separation of two threads suitable cutting tool according to Fig. i to 4 at Separating two threads when used to create any pattern of, for example three threads only two threads should be separated. For this reason there are four standing in front of one another, known thread guides 1, 2, 3, 4. shown, and although in the initial position before the beginning of the laying of a culvert row. In also as is known, only the thread-guiding thread guides lead the laying movement off, so that according to the exemplary representation in Fig. 1 ¢ only the threads 77, 79, 8o leading thread guides 1, 3, 4 carry out the back and forth laying movement. Each of the cutting tools 16 according to the invention, which are fastened in the bar 17, stands with the end 169 of its tip 16b a little below in a manner according to the invention the height of the thread exit from the thread guides between the trajectories of the first and second thread guide, so that the base thread 77 in the lower throat 2o of the board 8 is placed, while in the upper throat i9 of the board 8 two threads, namely, the plating thread 79 and the reinforcing thread 8o, laid by the thread guide 4 (Fig. 14). In order to be able to produce patterns with the plating thread, can According to the pattern, the second thread guide 2, which lays a fourth thread, is switched on while the different colored or different type of thread 79 of the thread guide 3 is switched off according to the pattern. The same can be done by moving it horizontally of the separating tool comb 17 patterns are generated in the base material by the Separating tool comb 17 is displaced in direction D that it is between the exit points the threads from the thread guides 2 and 3 and either the thread guide i or the thread guide 2, the pattern of different colors or different types Threads lead, according to the pattern alternately or. turned off. Will the Cutting tool comb 17 pushed out even further in the direction of D ller, so that the cutting tools 16 with the end of its tip 16s between the, exit points of the threads from the There are thread guides 3 and 4, then the patterning of the basic goods can be done in three ways different colored or different types of threads are made by patterning either thread guide 1, 2 or 3 is switched on or off. Just like the one or switching off the thread-laying movement of the individual thread guides for patterning purposes or automatically in a known manner for the purpose of plating or reinforcing takes place, the horizontal adjustment of the cutting tool comb 17 in the direction D or in the opposite direction in connection with the automatic or switch-off means of the thread guides take place automatically.

This described pattern option with the to separate two Threads suitable cutting tools 16 can of course according to the above with reference to the example of the illustration according to FIG. 14 according to the invention Method also in the case of the severing tools 22 used for severing three threads be applied. The resulting patterning option only depends on it from how many thread guides are arranged in front of one another in the flat weft knitting machine can be.

With the method according to the invention it is therefore possible with about the same speed on machines of each pitch 'two or three threads to process once separately, in the previously known manner only one thread is processed, so that the speed of work with smooth goods also when plating, when plating the reinforcement, when working with plush handles, when Working on clad or reinforced goods with plush handles and with reversible plating can be used because the threads are safely separated by the cutting tools and thereby the speed-reducing advance of the thread guides among each other is omitted, but for all thread guides the common most advantageous overall Advance can be given in front of the respective counting board.

The periodic movement of the cutting tool comb according to the invention 17 and 21 can be removed from the eccentric shaft by means of a cam eccentric using means known per se of the flat weft knitting machine. The 17 or 21 bar closes for this purpose provided with swivel arms (not shown in the drawing), which are mounted on a pivot shaft. The pivot shaft, which is known in itself Way can be set in rotary motion from the eccentric shaft to the bar 21 or 17 to give the necessary swivel movement goes with their axis either through the pivot point about which the cutting tools 16 or 22 pivoted must be, or it lies if this pivot point is due to the shape of the cutting tools so in front of the job that the view of the same blocked by the pivot shaft is so far above the chair needles that they swivel out z. B. the rat tooth cover bar does not stand in the way. In the latter arrangement, the pivot shaft next to their Pivoting movement can be given an additional vertical movement, if the Arch height of the swivel path if the radius of the swivel arms on which the bar is too large 21 or 17 is attached, without additional vertical movement becomes too small for the Separating tools 16 or 22 so between those lying in the grooves of the sinkers Pull out threads so that the position of these threads does not change.

The possibilities of arranging the drive means of the cutting tool combs depend in particular on the respective system of the flat weft knitting machine.

Claims (5)

PATENT CLAIMS: i. Process, two on flat weft knitting machines or to cultivate and distribute more threads at the same time safely separated, thereby characterized in that the threads when kulating immediately after emerging from the in front of each other standing, without lead to each other and with the usual lead to culminating Board together moving thread guides, whose outlet openings above the The upper edge of the distribution boards are, are mechanically separated and that this inevitable Separation is maintained until it is through-flow and the distribution boards move forward to disperse. 2. Apparatus for carrying out the method according to claim i, characterized in that the separation of the thread guides exiting threads by special cutting tools (16 or 22) is caused by which one stands in front of each distribution board, and which, reaching through the needles, stay in their separated position until the distribution begins, then in the direction of movement of the distribution plates, rushing in front of them, so between the threads held separately by them through into their position outside of the Move chair needles so that they do not move the separated threads takes place, and remain in this position until the sinker and distributor sinkers return to their basic position after knocking off, and that the cutting tools during this work sequence of the boards, running behind the distribution boards, Swivel back into their separated position. 3. Apparatus according to claim 2, characterized characterized in that for separating = kulate two threads each of the in the separating position cutting tools (16) in front of each distribution board, which are in a bar (17) are combined into a comb, with the end (169) of its tip (16b) almost in the Height of the thread exit point of the thread guide and between the movement paths of the thread-guiding thread guide is, and that each cutting tool from the end (169) its tip. (16b) from in its further part (16d) after the shaft (16a) together is shaped and widens in the vertical plane so that in the separated position the cutting tools in front of and behind the tip (16b) lying threads (6 and 5) double-throated sinkers (8, 51) with a straight vertical edge between the two Grooves inevitably placed at the same distance as the two sinker grooves from each other the upper edge (16e) of each cutting tool with the upper leg the upper sinker groove and the lower edge (16e) of each cutting tool with the lower leg of the lower sinker groove which shows the position of the threads (6 and 5) Form bounding edges at the top and bottom. 4. Apparatus according to claim 2, characterized in that for the seperating of three threads each of the cutting tools (22) standing in front of each distribution board, which are combined in a bar (21) to form a comb, with two tips. (22a, 22b) is provided, which in the separation position with their end almost at the level of the thread exit point of the thread guide between the movement paths of the .Fadenführer and which in their further part (22f and 2211) are shaped like this after the shank of the cutting tool and widen in the vertical plane in such a way that the threads (23, 24, 25) lying in front of and behind the tips are inevitably laid at the required distance from one another by double-throated sinkers (8 and 38) with a straight edge between the two throats the upper edge of the front tip (22b) of the cutting tool with the upper leg of the upper sinker neck (i9 or 3g) and the lower edge (22f) of the rear tip (22a) with the lower leg of the lower sinker groove (2o or 40) the position of the threads (23, 25) while the middle thread (2q.) is secured in place by the lower edge (2271) of the front tip (22b) and the upper edge (22e) of the rear tip (22a). 5. Apparatus according to claim 3, characterized in that that for the production of reversible clad goods interacting with the cutting tools (16) Coulier reversible sinkers (51) two connected to one another by a straight edge (54) Have grooves (52 and 53), the upper groove (52) for the plating thread, the The lower throat (53) is intended for the basic thread and the per se .known on the beak Turning bulge (51a) is provided, and that the distribution plates are in the same position as in the sinker have a plating thread groove (57), which is through a straight edge with the known turning slot (59) connected to the Place begins where the apex of the base thread groove (53) of the sinker (51) lies.