Brush – broom – and mop making – Brush-making machines – Tuft gathering
Reexamination Certificate
1999-11-03
2001-10-16
Till, Terrence R. (Department: 1744)
Brush, broom, and mop making
Brush-making machines
Tuft gathering
C300S005000
Reexamination Certificate
active
06302492
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a picking device, in particular for the separating of fill material for the production of brushes, such as for example strip brushes.
2. Description of the Prior Art
In a system made public in U.S. Pat. No. 3,048,442 the fill materials, to be separated, such as fill bristles for example, are separated by means of gearwheel-like circular blades in the inter-teeth notches. This, however, gives rise to an undesired compacting of the fill material so that trouble free operation is no longer possible, i.e. such a system leads to frequent stoppages. The shown constellation of circular blades in the aforementioned publication means that it is also possible to place a continuous fleece of fill material with that system, for instance onto a conveyor chain.
Also known from DE-OS No. 1,632,375 is a sledge provided with notches, which is fed past a magazine above it that is open at the bottom. Herewith the notches are filled with fill material, which is then taken over by a conveyor system.
Common to both these systems is the need for the notches to be kept closed during transport of the fill material within them, so that the fill material cannot escape from the notches. As this is realised by contact with guides these systems further lead to an undesired generation of heat and hence to resultantly high levels of abrasion.
Furthermore, the actual separator is in both cases fed along the stationary magazine above it and totally open at the bottom, in order to receive the fill material.
A generic device is known from DE reference No. 196,03,392. This system shows a separator with notch which is fed in pendulum fashion beneath a stationary magazine during the picking process. A return stroke, i.e. null or empty stroke, is required each time, leading to long cycle times and thus resulting in considerable economic drawbacks. Here too, the guide, in holding the fill material within the notch, gives rise to undesired heat generation and abrasion and finally to malfunctioning of the system and high maintenance costs. The said system shows several magazines open at the bottom placed side by side to one another and in all forming a rigid construction. Changing of the magazine is possible by swinging the complete magazine constellation above the picker, which also goes to form the lower base of a magazine, even during a movement. Other magazines are to be separately closed at the bottom.
SUMMARY OF THE INVENTION
One object of this invention is thence to provide a picking device, in particular for the separating of fill material for the production of brushes, such as strip brushes for example, with which neither compacting of the material to be separated nor long cycle times and undesired heat generation result. It is a further object, to provide a picking device with which the material to be separated can be discharged in both separated quantities as well as in the form of a continuous fleece, where required.
A picking device of the present invention, has a magazine with movable lateral walls which during the discharge of the fill material move in horizontally swinging and/or back and forth motion over at least two stationary arranged fittings, that the two fittings are placed at a distance apart from one another, forming between them an open picking slot, through which the fill material passes when being carried away, in order to allow it to be fed on to further processing.
Herewith results that there is absolutely no contact of wearing parts on the picking device of this invention nor any increased generation of heat and likewise do neither compacting of the material nor null strokes arise. What is more, the picking device of this invention allows an increased production speed at a high level of operational reliability and all this without abrasion in the areas of the material discharge and separating devices.
Furthermore, the configuration of the picking device of this invention allows a high level of variability in respect of production speed and with a simultaneously high level of discharge reliability.
If the picking slot is developed so that it is adjustable in size and is formed by at least two fittings placed at a distance apart from each other and whose position to one another is made adjustable, then the possibility is given to handle, i.e. to discharge by means of the picking device of this invention, diverse fill material, i.e. fill material of different size and/or thickness for example, with the picking device of this invention in a most simple manner and without any considerable change over work being required. What is more, differently sized material, i.e. material of different diameters for example, can be processed by simple adjustment of the picking slot.
If the lateral limitations of the magazine are formed to terminate at least in part at a distance beneath the base area of the magazine and/or the lateral limitations of the magazine are formed to terminate at least in part laterally to the fittings at a distance beneath the base area, then this will allow the material to be fed to the picking slot without resulting in direct contact between the lateral limitations and the supports, i.e. those fittings forming the base of the magazine, so that no abrasion at all occurs in this area.
If a conveyor placed beneath the picking slot to accept and convey the emerging fill material is provided, then this will ensure that the fill material can continuously leave the magazine through the picking slot without requiring a cyclical processing.
REFERENCES:
patent: 532735 (1895-01-01), Kimball
patent: 544201 (1895-08-01), Young
patent: 1752926 (1930-04-01), Page
patent: 2211036 (1940-08-01), Vinal
patent: 3048442 (1962-08-01), Anderson
patent: 1 632 375 (1970-11-01), None
patent: 196 03 392 (1997-08-01), None
patent: 2 11/635 (1983-07-01), None
Cohen & Pontani, Lieberman & Pavane
Till Terrence R.
Wöhler Techische Bürsten Maschinenbau GmbH
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