DE688329C - Process for inserting rubber weft or lining threads on flat weft knitting machines as well as flat weft knitting machines for executing the process and knitted fabrics produced by the process - Google Patents

Description

Method for laying rubber weft or lining threads on flat Weft knitting machines and flat weft knitting machines for carrying out the process and knitwear produced by the method. The invention relates to a Method and device for inserting rubber weft or lining threads flat weft knitting machines, in particular for goods that have been worked in the correct shape, whereby the rubber weft or lining thread, without being kulated, in certain mesh heads the goods is determined (feed binding).

According to a known proposal, a weft thread is used during the formation of a row of stitches between the knockdown comb and sinkers in this way. inserted, that a part of the needles to be moved upwards in front of the inserted thread and another part of those needles gets behind that thread: To realization this general thought should come before every other chair needle after raising it an auxiliary needle can be adjusted, which entrapment of the newly laid thread prevented from getting into the hooks of the needles in question and the latter when going down follows, so that the thread loops placed around those auxiliary needles during the following knocking off does not get on the back of the needles, but held onto the latter be that the needles in the following upward gear partly in front of, partly behind them Thread. Such a method can only be used when inserting elastic threads, because this requires a considerable stretch of the thread. Even if one wanted to carry out the given general idea in such a way that in as is known per se, every second or third needle during the upward movement would be bent out of the row of the rest, so that the weft thread held stretched - In this case, an inelastic weft thread could also be used - between the resulting spaces between the two needle groups would come to rest the implementation of the above-mentioned basic idea: very considerable difficulties. opposed by the fact that the needles to be bent from the row of other needles would have to be bent back by a relatively large amount so that the thread perfectly between the heads of the bent-back needles and the shafts of the needles left unchanged could pass unrestrained.

In contrast, neither the weft thread nor the needles are particularly stressed to have to, the chair needles according to the invention in regular or pattern Alternation in passing their tip at that above or below the ordinary Sink throat placed rubber shot or. Lining thread partly pressed, partly closed she put that thread into her hook one according to which the not included Parts of the thread are knocked off over the previously pressed needles.

In and of itself it is already known .above the usual press edge to arrange an auxiliary press and only let it act on certain needles. So was z. B. proposed to achieve an automatic connection of the free Edge of the double edge with the length an auxiliary press above the usual press, but still to be provided between the sinker and distributor sinkers, the latter were designed in the usual way and in any case were not given two throats, but only a thread of, laid in the usual way on the lower noses of those sinkers certain needles should not be included. Also were used to manufacture so-called press spoons are used for pressing samples, which are also placed between the Kuller and distribution boards had to act on certain chair needles. Also here were only individual chair needles when passing their tips on the usual Way to press the thread placed on the lower noses of the sinker and distribution sinkers, to have the latter applied to the needle hooks. In contrast, a special embodiment of the invention, the auxiliary press is not between the Kuller- and distribution boards, but arranged above the latter and brought into effect, around a weft thread, which is inserted into one above the main throat of the pen and distribution platinum the intended throat that is farther back than that main throat is inserted, to be applied to the respective stool needle tips.

The invention also offers the essential advantage that a weft thread can be integrated into the heads of press meshes. In such a case it exists the weft thread from a rubber thread, one obtains one in the direction of the rows of stitches particularly elastic and quick press samples. If, on the other hand, the weft thread comes from a If there is a non-stretchable thread, a press sample product is created, which in contrast to the known Preßmusterwaren ixe direction of the courses is not stretchable.

The drawing illustrates several embodiments of the invention Process or the device required for this.

Fig. I shows the position of the knitting tools in relation to one another during the Laying rubber weft or lining thread.

Fig. 2 shows the knitting tools according to the following upward gear Chair needles. Fig.3 and q. show other embodiments of the knitting tools for working rubber weft or lining threads into a weft knitted fabric.

Fig.5 and 6 are mesh patterns of the invention and the known Were. The chair needles i work with the sinker and distributor plates 2: as well as with the sinkers 3 together in the usual way when working smooth rows are. Pressed and Petinet patterns can also be produced in the usual way.

The insertion of rubber weft or lining threads q. can in many ways Way done. In order not to change the drive of the knitting tools for this purpose to have to, you could z. B. according to Fig. I the rubber weft or lining thread in each case at the moment of knocking off a finished row of stitches on the sinkers 3 place. At this moment the space above the sinkers is freely accessible. Even the chair needles are set low. One could therefore use the rubber shot or Feed thread to the desired one by means of a thread guide designed in a corresponding manner Let place. But if you want the time to insert a rubber thread as much as possible abbreviate, one could - in a manner known per se - each time to form a row of stitches corresponding piece of the thread in question during the previous work cycle attach to two guide levers, which are to be arranged on both sides of the font and put that piece of thread on the knock-off comb at the right moment. These levers could after laying the rubber shot. or feed thread moved forward in this way be that that thread is pressed close to the chair needles, if necessary to be safely locked in their hooks.

In all of these cases, after the weft is laid, the needles moved upwards, after which the loop-forming thread is laid, rolled and rolled as shown in Fig. 2 is distributed. On the subsequent descent of the needles, the suture becomes kuliied trapped in the heads of all fecal needles. If, on the other hand, the tips of the latter pass the weft thread lying on the sinkers, the needle heads become partly compressed, partly they enclose the latter thread, after which it does not enclosed parts together with the finished stitches of the needles in question be knocked off. The weft thread loops that have been chopped off then lie flat on the Back of the goods, while the weft thread parts enclosed in the needle hook tied into the fabric through the heads of the stitches formed by those needles will. If the machines were running quickly, they would have to be knocked off The time allotted for a row of stitches is not sufficient for the elastic thread to be attached to the To be able to lay sinkers, especially if a thread guide is used for this is to be moved across the font, so one could use the chair needles i at a greater distance than is otherwise customary; at the front ends of the Move Kuller and distribution plates past upwards, so that between the latter plates and chair needles, sufficient; d space for a thread guide or thread guide to pass by. available for lowering the prepared rubber weft or lining thread stands.

The Gummisch uß- or feed thread is here in the to be produced The goods are bound in that, from the previous row of stitches, individual stitches, which can be distributed regularly or in the sense of a pattern formation, for example every second, third or fourth stitch, with the aid of a known press master device remain on the chair needles, so do not be knocked off. To this end can e.g. B. the chair needles concerned by special auxiliary presses so be @ influences that their hooks remain open and except for those that remain on the chair needles old stitches as well as the newly laid thread loops also the now laid rubber weft or temporarily includes lining thread. All of these thread parts are only after knocked off the following stitch-forming process, so that the relevant-rubber weft- or lining thread 4 according to Fig. 5 in each case with the double loops of the press binding in the goods are integrated, but otherwise known per se on the latter Way afloat.

For the process just explained you could, for. B. special press plates use that in a known manner from below or from the top in front of the continuous Press are set, with the rest of the chair needles after the Kuliere.n one ; new thread is moved down in such a way that part of the The needle hook does not touch the press going through, so only those chair needles are pressed, in the way of which the above-mentioned press plates are set.

To get the rubber weft or feed thread reliably into the needle hook to include, it is advisable to attach to the upper side of the sinkers in a known manner to provide hooks 5 and, if necessary, even the sinkers at the moment of the downward movement of the chair needles so far forward that the rubber shot or. Lining thread reliably pressed onto the "shaft of the chair needles will.

It is by no means necessary to incorporate the rubber wefts to be incorporated into the goods. or to lay lining threads directly on the sinkers. You could go for this Purpose z. B. in the lower part of the Kuller and distribution plates z 'according to Fig. 3 a Provide slot 6 in a manner known per se, in which the rubber weft or lining thread is inserted, - while the thread to be culminated above the slit. 6 in the Throat 7 is placed. The slot 6 is only to be chosen so deep that its rear End of the rubber. Lining thread while pressing the chair needles to the the latter presses so that the needles not pressed off the rubber shot bzrv. Lining thread can safely lock into their hooks.

It is even possible to incorporate the into the goods as shown in Fig Rubber weft or lining thread above the thread 8 to be culminated in an auxiliary groove 9 to insert the Kuller and distribution boards z, if above the latter one Auxiliary pressing device io in the form of known pressing spoons, pressing plates o. Like. Is provided and driven in such a way that certain chair needles through them i in each case when the tip is in the area of the rubber shot b-zw. Lining thread 4 reaches, are pressed. In this case, they do not close from the auxiliary press io chair needles influenced the rubber weft or feed thread in their hooks. After this, however, the auxiliary press i o must already be lifted from the chair needles i, if their tips. get into your area of the rolled thread 8, so that the latter is caught by the hooks of all chair needles in a manner known per se, whereupon the further operation proceeds in the usual way. In this case too is, but it is necessary to form press patterns and for this purpose further Downward movement of the chair needles, leaving some in front of them unscrewed. The mesh structure will therefore correspond to the one shown in Figure 5. The one shown in Figure 4 However, the shape and arrangement of the knitting tools can also be different Use as described above, namely in such a way that the rubber shot or lining thread 4 according to the stitch pattern of the goods known per se according to Fig.6 in the goods are incorporated without the need for a press sample.

For this purpose, if a rubber weft or lining thread 4 is placed on the sinker and distribution sinkers z, no thread to be culminated 8 laid, but worked a so-called empty row. In this case are some of the chair needles in the manner already explained above through the auxiliary press i o to press each time their tips hit. the rubber weft or lining thread q. pass. The unpressed chair needles, including that thread have, take it with them on their further downward gear, while the Kuller and Distribution boards 2 are withdrawn in the usual way. That thread got there then on the sinkers 3 and is pressed over the heads of the previously Needles knocked off so that it comes to rest on their backs. After the next When the chair needles go up, another thread goes into the main throat in the usual way of the sinkers 2 laid, rolled and then knocked off, with those too. Parts of the guanme weft or feed thread 4. that were used in the previous operation were included in the needle hooks, can be knocked off without knitting them were worked out.

Claims (3)

PATENT CLAIMS: i. Method for inserting rubber weft or lining threads on flat fillet molding machines, especially for goods that have been made to the correct shape, wherein the rubber weft or lining thread, without being colected, in certain mesh heads the goods is set, characterized in that the chair needles in regular or alternation according to the pattern when its tip passes the one above or below The rubber weft or lining thread placed in the usual sinker groove is partly pressed shut partly include that thread in their hooks, after which the not included Parts of this thread are knocked off over the previously pressed needles. 2. The method according to claim i, characterized in that the weft thread directly on the sinkers or in a slot in the lower part of the sinker and distributor sinkers brought and also in the usual way a stitch-forming thread on the sinkers is placed. 3. Flat weft knitting machine for carrying out the method according to claim i, characterized in that an auxiliary press above the Kuller and distribution plates arranged in such a way and can be moved forward and backward in the direction of the chair needles is that the auxiliary press after the insertion of a weft thread in one above the Main throat provided in the sinker and distributor sinkers, wider than the sinker throat back throat determined needle hooks as their point passed the weft thread squeezes, but those needle hooks immediately afterwards to include the ones on the lower The noses of the thread handles lying on the Kuller and distribution sinkers are opened. q .. Knitted fabric produced by the method according to claim i, characterized in that that the lap thread is tied in at the heads of press meshes.