DE2003928C3 - Process for the production of goods provided with pile loops - Google Patents

Description

The invention relates to a method for the production of goods provided with poochings on a Raschel machine with at least two basic bars in which the pile threads are pinched by plain weave threads in this way be that when lowering the needle bar from a pile thread section between the clamping point and the knock-off edge is formed into a loop.

In a known method of this type (FR-PS 10 67 892) there is only a simple clamping of the Pile thread, which is not sufficient to hold the pile thread reliably until it is after Completion of the cycle of action is involved at both ends.

A first possibility according to the invention to avoid this disadvantage is that of a front guide bar fringing basic threads, a middle guide bar to be grasped by a drop plate Ground threads and a rear guide bar pile threads are guided that the first swing through put the threads guided by the middle guide bar over the needles, through the fall plate onto the Needle shafts are pressed and the pile threads climb on the needle shaft that then the pile threads in the opposite sense as the threads captured by the fall plate are placed under a needle and that with in each case the second swing through of a loop formation cycle, the fringing basic threads in the same sense as the pile threads were previously placed under the needles and placed over the needles clamp the pile threads on the needle shafts again.

Another possibility is present according to the invention in that from a front guide bar fringing pile threads, a middle guide bar fringing base threads and a rear guide bar as a weft to be laid base threads that before each first swing through the The shot is fired so that the first swing through is carried out by the front guide bar Pile threads are placed over the needles and then in the opposite direction under the needles and that the fraying at the second swing through a loop formation cycle Ground threads are placed over the needles and the pile threads are clamped on the needle shafts.

Finally, there is a third possibility to avoid the disadvantage described above. she consists in that from a front guide bar fringing basic threads, a middle guide bar pile threads to be grasped by a fall plate and a rear guide bar to be laid in the weft direction Basic threads are guided that the weft takes place before the first swing through that when each first swing through the one from the middle

Guide bar guided pile threads are placed over the needles and pressed through the fall plate onto the needle shaft be that then the pile threads are placed in the opposite direction under the needles and that the fringing of the base threads every second through a loop formation cycle are placed over the needles and thereby the pile threads through the fringing base threads and the ground threads laid in the weft direction are clamped on the needle shafts. ι ο

The second clamping achieved according to the invention brings with it a reliable clamping effect and enables the processing of smoother pile threads as well as the production of goods with a uniform pile height, because the tension bar prevents the pile thread from being pulled back. With the new legends the double crossing clamping of the pile thread on one side of the knitting needle is guaranteed.

Especially with the second and third option is used in the formation of the second Klemmpui.ktes by the weft thread that the The knock-off movement of the needles in warp knitting machines starts when the guide bars are not yet full are swung out, so that the weft threading bar located at the back is practically completed The tee is located behind the needles and the threads previously laid under the needles on the pile threads clamp the needle shafts.

The following are based on layout images and excerpts from the loop formation points of the Machine explains the three possibilities according to the invention. It shows

Fig. La and Ib a layout diagram and the view of a Knitting needle for a first method according to the invention.

F i g. 2a and 2b a layout diagram and the view of a knitting needle for a second according to the invention Procedure and

F i g. 3a and 3b a layout diagram and the view of a knitting needle for a third method according to the invention.

The embodiment of FIGS. La and lb involves the production of weft plush. Here, the guide bar L \ located in front creates a fringe, the guide bar Li behind it creates a layer with considerations, which are, however, pressed onto the needle _{shaft by a fall plate, while finally the guide bar L 3 at} the back guides the pile thread to the weft. After the needle bar has been cut off, the knitting needles rise to their highest point. The guide bars Li, L ₂ , Lj swing in their first swinging movement through the knitting needle gaps from the front of the machine to the back. The guide bar L ₂ carries out a consideration. Then these guide bars Li, L ₂ , L3 swing back to the front of the machine and the drop plate comes into action; it lowers and transforms the projection of the guide bar L2 into a handle, ie the projection of the guide bar L ₂ moves from the tongue onto the needle shaft. Thereupon the fall plate rises while the guide bar f> o Lz carries out an underlay. Now the guide bars Li, Li, L3 swing again at the second swing to the rear of the machine. The guide bar Li carries out a reflection, the guide bars Li, L ₂ , L3 swing back to the front of the mesh. It starts the Abwärtsbe- (> s movement of the knitting needles, while the two clamping points are formed on the needle shaft, which can be seen from Fig. Ib. When terminal point 1 is the distance traveled by the guide bar La thread Sch before the pile yarn P and at the terminal point 2 of the guide bar Li Laid yarn M arising prior to the pile thread P. During the lowering of the needle bar the pile loops. close the needle latches and the guide bar L ₂ performs a backing, and then carried out the cutting off of the stitches.

The embodiment of FIG. 2a and 2b illustrate the production of knitted plush. No drop plate is used here. The guide bar Li in front guides the pile thread P, which forms loops. The guide bar Li behind it guides the fringes and _{the guide bar L 3 at the back} guides the weft thread Sch.

After the needle bar has been knocked off, it rises again to its highest point. The guide bars Li, L ₂ , L3 swing through the knitting needle gaps from the front of the machine to the rear when they swing for the first time. The guide bar Li carries out a consideration, whereupon it swings back to the front of the machine, where an underlay follows, contrary to the previous consideration. After that, the _{guide bars Li, L 2} , L ₃ oscillate towards the rear of the machine in the course of the second oscillation. The guide bar L ₂ now carries out a consideration, whereupon the guide bars Li, L ₂ , Lj swing back to the front of the machine. The downward movement of the needle bar begins, creating the two clamping points on the needle shaft. When the needle bar is lowered, the pile loops are created and the needle tongue is closed and then the guide bars Li and L _{3 are placed} under them, followed by knocking off the stitches. As can be seen in Fig. 4, the yarn M is in this case at the terminal point of the weft yarn 1 Sch over the pile yarn P and the terminal point 2 also above the pile thread P.

The third in Figs. 3a and 3b illustrated exemplary embodiment! of the process illustrates the production of handle plush. The Raschel machine used here is again equipped with a fall plate. The guide bar Li in front guides the fringing base thread M, _{the guide bar L 2} behind it guides the pile thread P, which makes considerations as to which are printed on the needle shaft by the fall plate. The rear _{guide bar L 3} guides the weft thread Sch. After the needle bar has been knocked off, it rises again to its highest point. The guide bars Li, L ₂ , L ₃ swing when they first swing through the knitting needle gaps from the front of the machine to the back. Now the guide bar L ₂ carries out a consideration. Then the guide bars Li, L ₂ , L ₃ swing back to the front of the machine and the drop plate comes into action, it lowers and transforms the _{guide bar L 2} into a handle, ie it pushes the guide _{bar L 2} off the tongue on the needle shaft. Then the fall plate rises while the guide bar Li carries out an underlay, but contrary to the previous consideration. The guide bars L \, Li, L _{3 then} swing towards the rear of the machine in the course of the second oscillation. The guide bar Li carries out a reflection. Then swing the guide bars Li,. ' ·, Li back to the front of the machine and the downward movement of the needle bar begins and the creation of the two clamping points on the needle shaft. At the clamping point 1, the weft thread Sch is behind the pile thread Fund at the clamping point 2 of the

Base thread M in front of pile thread P. When the needle bar is lowered, the pile loops are created, followed by the closing of the needle tongue and finally the laying of the guide bars Li and L3. Then the knocking off of the stitches takes place.

For this 1 sheet of drawings

Claims (3)

Patent claims: 1. A method for producing goods provided with pile loops on a Raschel machine with at least two basic bars, in which the pile threads are clamped by plain weave threads in such a way that when the needle bar is lowered, a loop is formed from a pile thread section between the clamping point and the Abschlagkantc, characterized in that, that from a front guide bar (L \) fringing base threads (M) of a middle guide bar (L ₂ ) to be grasped by a fall plate base threads (Sch) \ md of a rear guide bar (L ₃ ) pile threads (P) are guided Swing through the threads (Sch ) guided by the central guide bar (L ₂ ), placed over the needles and pressed through the fall plate onto the needle shafts; and the pile threads (P) clamp on the needle shaft so that the pile threads (P) are then placed under a needle in the opposite direction to the threads (Sch) captured by the fall plate and that the fraying base threads (M), in the second swing through a loop formation cycle same sense as the pile threads (P) were previously placed under the needles, placed over the needles and clamped the pile threads (P) on the needle shafts again. 2. A method for the production of goods provided with pile loops on a Raschel machine with at least two basic bars, in which the pile threads are clamped by plain weave threads in such a way that when the needle bar is lowered, a loop is formed from a pile thread section between the clamping point and the knock-off edge, characterized in that, that from a front guide bar (Li) fringing pile threads (P), a middle guide bar (L ₂ ) fringing base threads (M) and a rear guide bar (L)) as a weft to be laid base threads (Sch) are guided that before the first When the weft leg swings through, the pile threads (P _{) guided by the front guide bar (L 1} ) are placed over the needles and then in the opposite direction under the needles during the first swing through each time and that the fraying base threads (M ) are placed over the needles and the pile threads (P) clamped on the needle shafts. 3. A method for producing goods provided with pile loops on a Raschel machine with at least two basic bars, in which the pile threads are clamped by plain weave threads in such a way that when the needle bar is lowered, a loop is formed from a pile thread section between the clamping point and the knock-off edge, characterized in that, that frans-forming from a front guide bar (L \) ground threads (M), a middle guide bar (L ₂₎ from a fall plate to be detected pile threads (P) and a rear guide bar are guided (L ₃₎ in the weft direction to applied Gntndfäden (Sch), that the weft is placed before the first swing through each time that the pile threads (P) guided by the central guide bar (L ₂ ) are placed over the needles and pressed through the drop plate onto the needle shaft, that the pile threads ( P) 'm are placed under the needles in the opposite direction and that every second swing through a In the stitch-forming cycle, the fringing base threads (M) are placed over the needles and the pile threads (7 ^ / through the fringing base threads (M) and the base threads (Sch) laid in the weft direction are clamped to the needle shafts.