SU26281A1 - Frame for supporting and guiding two endless belts on rollers of the second pair of paper spinning machines - Google Patents

Description

The main patent describes a frame for supporting and directing two endless belts on the rollers of the second pair of paper machines, consisting of two parallel strips fastened between the crossbars at a distance corresponding to the width of the belt. At the upper edges of the slats lies the upper branch of the interchangeable plug, with its lower branch guiding the lower endless tape for pressing against the upper similar tape. In a modified design, the plug is put on the back of the frame.

In order to make it easier to replace the replacement plug, as well as to prevent its displacement in the frame, the additional patent proposes a replacement plug having a lower branch somewhat bent downwards and provided with a handle between the lower and upper branches in the bridge to facilitate its removal from the frame .

FIG. 1 of a schematic drawing shows a side view of a frame for supporting and guiding two endless belts on rollers of a second pair of exhaust apparatus; FIG. 2 is a front view thereof; FIG. 3 — interchangeable guide fork; FIG. four-

its modified design; FIG. 5 is the value of the distance between the guide branches of various interchangeable plugs.

The exhaust apparatus of known construction comprises a frame formed by side walls 1 and 2, connected by cross-pieces 10 and 11, and the latter also serves as a guide for a roving upon entry into the exhaust apparatus. The frame rests on the rollers 5 and b, leading both endless belts 3 and 4, which bring the roving to the exhaust rollers (not shown in the drawing). The front of these belts 3 and 4 are guided by both non-rotating guides 8 and 9 of the interchangeable forks located inside the belts.

Both guide branches 8 and 9 are designed in such a way that they form one integral V-shaped interchangeable plug g, 9 (Figs. 1, 2, 3 and 4). The latter rests with its lower branch 9 in the recess 13 of the frame, while the upper branch 8 abuts against the flat part 16 of the frame. The belts automatically press the branches 8 and 9 to the front edge of the frame, while the notch 13 prevents the sheer fall of this part. In order to prevent the possibility of lateral displacement of the interchangeable plug 8, 9, the lower branch 9 at its end 15 is bent downward, due to which the fork is not allowed to move to the left (Fig. 2 and 4).

The indicated device allows easy insertion and removal of the guides, branches 8 and 9, because the plug 8, 9 is replaceable on the fost is stuck. in the frame, held by the belts themselves and can be removed by simply pulling the bend of the fork to the left. A replacement plug 8, 9 can thus be replaced quite quickly and very easily replaced by another one of the same plug of a different size.

To further simplify the insertion and extraction, it is still possible to give the interchangeable plug 8, 9 the shape shown in FIG. 3 and 4. A handle 18 is welded or otherwise secured to the bridge between both branches 8 and 9 for convenient manipulation of the interchangeable plug (Fig. 3). The handle 18 can still be extended in the form of a horizontal process 19 (Fig. 4). One or another implementation may be preferred in accordance with the construction of this machine and the conditions under which the device is used in every single case, however, the handle 18 or the handle with a process 19 makes it extremely easy to pull out and insert the guide branches 8, 9 without something had to be removed from the mechanism. So to & to most of the spinning machines, the exhaust devices are very close together, the interchangeable plug 8, 9, which has a V-shape, it is difficult to directly take with a hand without a handle.

The device allows the use of a set of interchangeable plugs 8, 9 with different distances between the guide arms. In each case, the required distance can be chosen according to the work performed. Thus, the frame for supporting and guiding endless belts can easily be put on certain types of fibers or on certain work without having to resort to any, even slightest, changes in the frame, rollers or belts.

With a relatively large gap between branches 8 and 9, belts 3 and 4 form in their anterior part a larger radius curve and diverge approximately at point 20. If, on the contrary, the gap between the branches is reduced, then the belts occupy position 3, 4 in which they form a more compressed curve and remain in contact up to point 21. This has a two-fold consequence: first, the mutual pressing of the belts is enhanced, which in turn causes a greater retention of the fibers between the belts; secondly, in this case, the belts guide the fibers in a longer section, and the gap between the point at which the belts leave the roving and the point at which the roving engages the pull rollers 22 becomes shorter. This change in the distance between the guiding branches 8 and 9 can be achieved by increasing the diameter of the stern. The constant diameter of the rods can, however, be preserved if the gap between branches 8 and 9 is narrowed.

These variations in the distance between branches 8 and 9 are very small and are approximately 1–2 mm. In practice, it would be difficult to directly distinguish individual sizes. For relief, these interchangeable plugs can be painted or enameled in different colors, according to different distances of the guide branches.

The subject of the patent.

- Modification of the guide fork according to claim 2 of patent No. 2073, characterized in that the replacement plug is provided for each of the belts with guide tracks 8 and 9, of which branch 9, in order to prevent the fork from shifting, is bent downwards, from the side The sides of the plug have a handle 18 or a handle with a process 19 (Figs. 3 and 4) attached to a bridge between both branches of the plug.

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