Textiles: fiber preparation – Working – Picking
Patent
1992-04-03
1994-01-11
Crowder, Clifford D.
Textiles: fiber preparation
Working
Picking
D01G 708
Patent
active
052769461
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a multipe bale opener with a transport device being inclined with respect to the plane of reduction and guiding pressed fiber bales to a horizontal plane of reduction, and with a reduction device shuttling in the plane of reduction, as well as to a method of opening and mixing different pressed fiber bales.
Such a bale opening device is known from DE-OS 20 61 044, according to which the pressed fiber bales set up in rows may be continuously fed longitudinally thereto, while the reduction is performed. In this case, the opening device may be displaced to and fro along a straight guide relative to the rows of bales, while the fiber material is fed along a rising ramp.
Such a multiple bale opener has the drawback that, substantially, it can only process batches of raw material that are uniform in height. Cotton mixtures of different origin indeed have bale dimensions varying considerably so that a manual levelling of the height has to be performed before the desired cotton mixture can be reduced by the known multiple bale opening device. In practice, the height differences are levelled by severing an upper portion from higher bales and putting these portions on the lower bales. This, however, entails a considerable variation in the mixture ratio of the batch.
It is a further drawback that mixture ratios can only be set as integral bale number ratios, namely ratios lying within the scope of the number of bales that are simutaneously reduced on the ramp.
It is an object of the invention to improve a multiple bale opener and a method for opening and mixing different pressed fiber bales such that an optional selectable and readily changeable mixture ratio can be set.
The object is soved with the features of the claims.
SUMMARY OF THE INVENTION
The transport device of the present invention, having a plurality of adjacent and independent, transport tracks, for instance allows the transport of cotton of different origin and different bale dimensions on each track. A desired optional mixture ratio can be adjusted with high accuracy by regulating the transport velocity. It is essential that this mixture ratio can be adjusted smoothy and may be changed at any time. Thus, it is possible, for instance, to compose different batches from one supply of bales without interrupting the reduction process. It is not necessary to change the arrangement of bales in order to change the mixture ratio.
Besides the exactness of the adjustment of the mixture ratio, it is a further advantage that any mixture ratio of the four bale rows can be selected, e.g. 2.5% of the first row of bales, 45% of the second row, 21% of the third row and 2.5% of the fourth row. Previously, such mixture ratios could not be set, since the composition of the mixture had to rely on the quantitive relation between simultaneously reduced whole bales.
Each transport track may be lifted such that the upper edge of every pressed fiber bale at the beginning of a surface to be reduced has the same height as the adjacent rows of bales. Due to the different angular positions of the individual transport tracks relative to the reduction plane, there will occur different lifts for levelled bale supply, provided that the transport velocities are the same, which, however, can be compensated by setting corresponding transport velocities.
Preferably, the reduction device is provided so as to be shuttled parallel to the direction of transport in the region of the reduction area, the length of the reduction device corresponding to the width of all transport tracks transversal to the direction of transport. In this preferred embodiment, the reduction device, e.g. a milling device, is guided parallel to the transport device.
According to the present invention, the method of opening and mixing different pressed fiber bales is characterized in that a plurality of pressed fiber bales arranged side by side are supplied on separate transport tracks, pressed fiber bales or a mixture of pressed fiber bales of a uniform bale heigh
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Lucassen Guenter
Pinto Akiva
Crowder Clifford D.
Hergeth Hollingsworth GmbH
Neas Michael A.
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