DE4478C - Drafting system for fibrous materials - Google Patents

Description

1878.

PATENT LETTERING

PAUL HEILMANN-DUCOMMUN, HEILMANN-DUCOMMUN & STEINLEN in MÜLHAUSEN (Alsace).

Drafting system for fibrous materials.

Patented in the German Empire on August 7, 1878.

In treating the pulps on the inventors' combing machine, Patent No. 1984, it is advantageous to use fibers that are as parallel and pure as possible; this will make the work the combing needles made easier and less fibers torn, consequently less waste is produced.

The preparation obtained is partly obtained if the fibers are continued by means of one Pulling tongs out of a feeder by grasping them very close to the latter; but the cotton wool prepared in this way for combing has the fault, so much To have cuts as pliers blows.

To remedy this inconvenience, d. H. to avoid the cuts and still do that work to do, which the forceps executes by bringing the fibers very close to the feeding device seized, the inventors use instead of a pair of tongs two stretching rollers of little Diameter, their points of contact or their lines of attack are as close as possible are on the feed device.

As a result of the small diameter of these draft rollers, they become two bends exposed, one by the pressure of the fibers, the other by the tension of the same • caused by the resistance of the fibers when pulling them out of the feeder.

To prevent these bends and still use thin stretching rollers to allow, two other rollers are attached, which touch the two stretching rollers and press them against each other.

The direction in which the pressure rollers press the draw rollers against each other will be in the direction of the resultant from the above two bending forces have to fall.

Fig. Ι shows the feed device. This is depending on the state of the fibrous materials be used:

Fig. 2 shows a smooth roller;

Figure 3 shows a ribbed roller;

4 shows a roller with flat metal strips wound around in a spiral shape;

FIG. 5 shows a roller with toothed metal strips which are turned over in a spiral shape; FIG.

Fig. 6 shows a small hedgehog with fine needles in front of a large hedgehog with coarser ones needles standing against each other, which cause a slight stretching between the two hedgehogs.

These various rollers are either provided with troughs, which require the fibers, to penetrate the hedgehog's needles, or with keyboard hollows, such as those on the Drawings are shown pressing the rollers by springs or weights.

BB ' are two stretching rollers, one covered with leather, the other made of ribbed metal; these rollers are of small diameter, that is, arranged so that the point of contact or the point where the fibers are gripped is as close as possible to the feed device.

CC are two pressure rollers which absorb the bending forces of the stretching rollers mentioned above, which act in two directions. It can be seen that the lines de, fg do not fall in one direction, but form an open angle towards the feed device. The position of the axes of the cylinders CC ¹ is such that when the rollers BB ' want to bend due to the resistance of the fibers when they are pulled out of the feed device, they are held by the rollers CC . The same thing takes place in the pressure direction of the draw rollers.

EF GH are levers and weights that load the two stretching rollers BB '.

The lever £ can be detached from the lever F at will by opening the joint χ , while the weight H is supported by the eccentric K. Lever E can be moved by hand, taking the roller B ' and the cylinder c' with it. The purpose of this movement is to disengage the feeder so that you can add your hand when beards form or when work is about to begin.

The cylinder GC is moved by the gearwheels L 'L "U", which are driven by the wheel L.

The small roller B ' gets its movement through the wheels Z'" MM M".

Depending on whether the fiber material is more or less entangled, it becomes a feeding device either a roller with a piano trough or a hedgehog was used. When using a hedgehog This apparatus is also used as a stretching machine for the one already treated by the comber Fiber wadding can serve.

Claims (1)

Patent Claims: i. The entire arrangement of the machine, as described and illustrated, with the use of a feed device and depending on the condition of the fibrous materials to be treated, be it a smooth roller, a ribbed roller, a roller with spirally wound flat or toothed metal strips; a single hedgehog or a small hedgehog with fine needles in front of a large hedgehog with coarser needles that are further apart, causing a slight stretching between them. The use of a trough or a keyboard tray, which presses on the cylinder by means of springs or weights.
2. Use of two pressure cylinders which urge the two stretching rollers against each other; it may be that the centers of the cylinders and rollers lie in one direction, or that the axis line of the upper pressure cylinder and the upper stretching roller is placed in relation to that of the lower pressure cylinder and the lower stretching roller in such a way that they one with each other towards the feed device Form an open angle, so that the stretching rollers are held straight at the first tendency to bend, be it against the feed device or otherwise, by the pressure rollers as between two angular surfaces. For this purpose 2 sheets of drawings.