SU18885A1 - Drum Type Machine - Google Patents

Description

The invention relates to drum-type carding machines for continuous carding of stems that are moved in a direction parallel to the axis of two counter-rotating drums with needle-shaped slats. In the proposed machine, the needles are arranged along a helix along the length of each bar, so that in the stem end of the reels, the needles are located almost tangentially, and then their direction changes to a direction close to the radial direction of the bars’s trajectory to enhance the combing effect of the needles on the fibrous material.

In FIG. 1 shows a machine in cross section; FIG. 2- view of the strap with needles in different positions; Fig. 3 shows a side view of the last needle.

The proposed machine (Fig. 1) consists of two opposing rotating drums DJE having strips F with needles set at different angles to the radii going to the bases of the needles. Planks F (Fig. 2), at the point of entry of the goods into the carding machine, are equipped with needles, the location of which is reverse to the movement of the drum, and the direction is close to the tangent circle described by the outer surface of the plank. The direction of further needles all the time changes, approaching the direction tangential to the path of the slats (Fig. 3), in order to enhance the combing effect of the needles on the fibrous material. The first needles, located almost tangentially, comb only the ends of the handful. Moreover, the closer the needles come to the radial position, the earlier they penetrate into the thickness of the material, while the latter need to comb the material from the clamping point to the end of the handful. If you mentally draw a line through the ends of the needles, you get a curve close to the helix.

The subject of the patent.

Drum type chesnoe machine for continuous carding of stems moved by a transporting device in a direction parallel to the axis of two oppositely rotating drums with needle bars, characterized by the fact that the needles are along a helical line along the length of each bar so that the needle end for the stems of the needle drums are close towards the direction tangential to the slat trajectory, the direction of the further needles of the slat gradually changes to a direction close to the radial direction of the slats trajectory in order to strengthen opener needles action on the fibrous material.

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