Device on a carder for filling a round can with sliver, e.g. cotton, man-made fibers or the like

Abstract

In a device on a carder (K) for filling a round can (15) with sliver (14), e.g. cotton, man-made fibers or the like, the sliver (14) can be dispensed and be placed in the round can (15) in the form of rings by a rotatable delivery head (19). In order to prevent the round cans (15) from moving when cans are replaced, i.e. when the local association between the delivery head (19) and a full can and an empty can is changed, the delivery head (19) can be displaced relative to the round cans (15), two rotatable can dishes (27a, 27b) are provided, on each of which a round can is arranged, and a driving mechanism (43) is provided for rotatingly driving the two can dishes.

Description

technical field [0001] The invention relates to a device on a carding machine for filling circular cans with fiber slivers, such as cotton, chemical fibers or the like, in which the fiber slivers can be conveyed out by a rotatable stacking head and Can be stacked annularly in round cans, wherein during the filling process the stacking head is arranged above the round cans and the round cans surround the vertical cans in a fixed position on the rotatable can chassis The axis rotates, and in the device, after filling a can and before filling an empty can, on the one hand replace the local configuration between the stacking heads and on the other hand replace the full and empty can ( can change) and can feed out full cans and feed in empty cans (can change). Background technique [0002] Rotary can changers (US4208768) and linear can changers (EP 967169B) are known for changing round cans on cards. The can changer is basically designed in such a way that at least three possib...

AI Technical Summary

Problems solved by technology

However, it is desirable from the customer's point of view to change round cans quickly so that the output of the card does not have to be significantly reduced

In addition, bar weight fluctuations occur with large variations in delivery speed, which can have a negative influence on the technical result and even on the final yield

However, the quick change of round cans is associated with different difficulties

Round cans do not have a consistent stable structure and can therefore be damaged due to high forces

Round cans, on the other hand, are different for each customer, which is difficult to match appropriately

Furthermore, in the filled state, round cans have a high weight, which leads to high forces during acceleration when changing times are short

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