DE655428C - Warp knitting machine - Google Patents

Description

Warp knitting machine was created based on the principle of the hand chain chair the old mechanical chain chair. In both cases there were: 'ennoble with their hooks above, level and still. As a result, the sinkers had the path of forward, high, Going back and forth and the needles apart from their lateral displacement movement and the way of going up and down through the needles, nor that of the laying point in Needle direction to execute outward movement. This last move was necessary so that the sinkers, especially with their beaks, did not come with the needles meet. Because the needles stopped moving, the movements were the sinkers, punch needles and press large and not suitable for a quick one Operation.

In order to achieve this, the needles also had to move erbalten, which saves the sinkers from moving in the direction of the needle, and the paths of all stitch-forming parts are shortened.

One tried to fix the chain chair with horizontal needles, so to speak turned upside down, so that the hooks of the needles pointed downwards and the goods were finished upstairs. The threads come from below, like the old one Chain chair, and, acquired a laying machine arrangement with which the laying machines in spite of the now movable needle and its supply after laying one in front Leg point outward movement received to hook the threads under the needle to bring, since this is not achieved with the circuit boards alone, due to their shape could be. A good overview could be produced with this laying machine arrangement Goods given, but the fast work process pressed.

The further development of the chain chair brought the principle that To build old chain chairs, so to speak, no longer lying on their backs, but rather to erect it with the deviation that the position and movement of the laying machines to the needles, for two reasons, another became; first to work faster secondly, a good working method of the machine along with an overview of the goods to obtain.

The needles went from the horizontal to the almost vertical position over and also received movement in the longitudinal direction, the sinkers from the vertical in the horizontal position. The laying machines in their earlier strong-angled positions to the needle back of the horizontal silent needle came in the direction of movement of the to lie almost vertical needle. The way of threading was a lifting movement and was designed to oscillate. The press went from the oblique vertical into the almost horizontal effect. The threads no longer come from below, but Bern from above. The goods run horizontally to the front, with the back of the goods facing up, away.

With this principle, the blanks kept their original shape in beak. Inclusion throat and sloping, ascending order or cut-off edge and got smaller. The sinker movement is perpendicular to the needle. the Needle movement from the downstroke to the laying point and back, which was the earlier sinker movement Replaced in the direction of the needle is not enough on its own to secure the threads through the laying to get on the needle shafts, but this requires a further climb of needles (replenishment). Because with the oscillating movement of the planting machine alone you can the safe thread placement cannot be achieved. The press pushes the needle hook above the retracted tip of the hook, while the lower pressing edge is allowed to touch the blanks do not touch.

According to this principle, several systems emerged, the course of which differed is fast and noisy.

The object of the invention is to accelerate the speed of the machine and to make it almost noiseless. This is necessary with the stitch-forming Share each other to make complementary cuts, shape and movement changes. As a result, the eccentrics are balanced in their contact surfaces (curves), quietly, swiftly, which, like all machine elements, means that these, like all machine elements, are not throbbing and beating Exercise and convey effects at the highest speed.

For this purpose, first of all, the other way of the needle and the needle even shortened by the amount of the supplies, which is about a third of their length, second, the path of the board is shortened by almost half and the shape of the same changed, thirdly, instead of the other smooth press, there is a comb press, whose milling corresponds to the respective board thickness. Also your way of movement is shortened. Fourth, the thread-guiding needles are given a special way.

The following is shown with the drawings: Fig. I to 5 a loop formation process of the known chain chair. Fig. 6 to i i show the knitting process in the machine according to the invention.

Fig. 12 is the sketch of the Legniascbinenbew eung according to the invention.

So far the needle has had four different times in its movement to be carried out on a row of stitches. From the lowest point of the tee (Fig. I) rose the needle to the laying point (Fig. 2), after your laying it rose again, so the thread that has been laid on the needle shaft comes to rest safely under to get the needle tips. This further ascent is called \ ach-, Aub (Fig.3). The needle then falls to the pressing point (Fig. 4.) and remains there until until the mesh is applied by moving the plate backwards (Fig. 5). is reaches this, the press P goes back, the needle falls second to the deepest Point of the discount, at the same time the board proceeds so that the needle head the covered the dotted path in Fig. i. The needle eccentric therefore has two in a row rising and two falling tracks, which is disadvantageous for a smooth walk.

According to the invention, the movement of the needle is only increasing once and falling once, for the rapid further rise and fall of the previous one There is no need for supplies because the needle only goes up to the laying point (Fig.7, like 2) and after laying it falls to the tee point (Fig.6, 1). The other one Standstill of the needle at the pressing point (Fig. 4., 5;) is also eliminated. The eccentric thus does not have the circular arc of standstill, which only the others do Compressed lanes and also not those of the replenishment. Consequently it turns out the eccentric in its total run-up surface calmly, quickly.

The length of the needle N is the same as that of the earlier supplies shortened (see Fig.8a, re 3). This has the advantage that it gives the needle a receives greater pressing resistance, which in turn for a lower pressing pressure is advantageous.

The press K, which is comb-like, has millings that of the strength correspond to the boards. It has the advantage that with it the needle tips at the deepest, most favorable point can be pressed, and that is the one drawn in End of the tip see this is impossible with a smooth press, because it is the tip end is so deep between the sinkers before pressing that there is still little space is present between it and the stitch to be applied (-Fig. 9 to 4). The smooth one The press must therefore press above the drawn-in part of the tip because it too must not touch the circuit boards (Fig. 4.). You need a third more pressure than that of the invention. For example, up to now a row of t5oo needles was required (75 inches Saxon) 49.5 kg of pressure, but now only 33 kg.

This reduced pressing pressure, which is even less due to the shortening the length of the needle by the amount of what has been lost Supplies, has a technically favorable effect on the desired smooth running of the machine. There the press eccentric no longer has the other long, circular press path, which only squeezed the back and forth of the press, this becomes this Eccentric also more balanced, calmer.

The board P1 is shaped according to its circular movement (Fig. 6 to ii), it no longer has the obliquely ascending order or. Knock-off edge x (Fig.-i to 5). Because (the application of the stitch is achieved in the inclusion position of the sinker (Fig. 10 to 5), in that the needle goes equally deep from the laying point to the tee, so it also moves during the pressing. As soon as the stitch is applied (Fig. 10) , the sinker goes back so that its beak b meets the button of the needle that is still going deep (Fig. ii). When this is reached, the sinker goes back to the enclosure, the end point of the same again meets the end point of the needle depth (Reduction, Fig. 6). The path g (Fig. 6) of the plate is therefore only as large as the dimension from the tip of the beak to the inclusion point. The earlier path ä (Fig. I) is accordingly shortened by about 50%, which also results in a balanced path for the eccentric. The laying of the threads by means of the perforated needles L is no longer done solely by swinging them out in a circular manner, but they also move obliquely forward (dotted path Fig. 8a), namely in the. loineni, if di e topmost perforated needle (rear, egg) has almost reached the level of the needle head after thinking about it (Fig. 8th). The purpose of this inclination is to ensure that the threads come to rest securely on the needle shafts, because the rest of the supply of the needle (Fig. 3-), which had the same purpose, has been omitted, in order to use the needle eccentric shape for smooth movement of the Machine to create.

This inclination of the laying machines is caused by the fact that the otherwise only rotatably mounted spreading machine shaft i (Fig. 12) also arranged to swing will. This is connected by arms: 2 with a supporting shaft 3 so that the Laying machine shaft is almost at the same height as it is, i.e. an oscillation in the Arc around the supporting shaft has an effect in the vertical direction. So that oscillating spreading machine shaft cannot fall, it receives supports 6, which are finite Lever 7 connected, respond to eccentric. At the moment when the needles are should lean forward obliquely, the oscillating wave i leans vertically, thereby the arm 8 fixed to it acts on the inclined arm connected to it Hinge 9, which is carried by the horn io of the machine lever ii. The slope The position of the hinge affects the inclined or diagonal direction of the arc 12 off, consequently with the vertical and diagonal movement that is achieved incline the needles forwards at an angle.

Claims (1)

PATI.NT: iNSi'RLCH: warp knitting machine (high-speed), in which the stitch-forming parts perform movements leading to one another, characterized in that that, first, the needle path is about the amount of supplies and the needle itself in theirs Length is shortened accordingly, secondly the board only about the measure of the The tip of the beak is moved up to the inclusion point and one of the circular motion the board has corresponding arc-shaped cut-off edge, thirdly the Press karmn-like with millings according to the respective board thickness, with which the shortened needles are pressed at the most favorable point within the sinkers fourth, the needles not only have a circular motion, but also one obliquely forward, move towards the back of the needle to compensate for the in the absence of needles, for which the laying machine shaft is arranged to be swingable is.