Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By queueing items from quantity source of items into stream...
Patent
1990-08-13
1992-04-14
Valenza, Joseph E.
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By queueing items from quantity source of items into stream...
198391, 198396, 198771, B65G 4712
Patent
active
051039621
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is based on a device for the storage and feed of small parts including a box-shaped storage container having a base adapted to hold an irregular pile of the small parts. The storage container is also provided with an oscillating drive producing an oscillation of the storage container in an oscillation direction and the base is inclined in the direction of oscillation so that the base has a lowest point. The device also has a conveying track and another conveyor. The conveying track is arranged next to the base of the storage container and ascends from the lowest point of the base in the oscillation direction. The conveying track is likewise driven so as to oscillate and lead into a higher input area of the other conveyor, which is advantageously a linear orientation conveyor. In a this generic type included in the prior art (patent application P 36 02 773.1), the base of the storage container is provided with a smooth and completely planar surface on which the stored small parts slide to the input area of the ascending conveying track. In this construction, the angle of inclination and the surface character of the base of the storage container, as well as its drive, must be carefully adapted to the stored small parts in order to ensure a regular feed of the small parts to the ascending conveying track. It must also be taken into consideration that soiling of the small parts, defective small parts and other foreign influences can impair the reliable operation of the device.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a device for storing and delivering small parts or articles, which has none of the above-mentioned disadvantages.
According to the present invention at least a partial area of the base of the storage container is provided with shoulders for obstructing and preventing an upward movement of the stored small parts. The shoulders are directed transversely relative to the oscillating direction toward the lowest point of the base.
In the arrangement according to the invention adapting the parameters influencing the operation of the device is less critical than in a construction without obstructing shoulders in the base of the storage container; moreover, its base can also be provided with an angle of inclination which is smaller than in the known construction.
The shoulders at the base of the storage container can be formed by means of step-shaped shoulders or doorsill-like raised portions of the base which can already be formed in during its production without additional work steps. However, the shoulders can also be formed by means of strips or the like which are fastened at the base of the storage container, and their height can be adapted solely to the desired function regardless of the manufacturing requirements.
A simple construction results when the ascending conveying track is mounted directly on the storage container and when the storage container and conveying track have a common oscillating drive. In many cases it can be advantageous if an intermediate wall extending parallel to the oscillating direction is provided between the base of the storage container and the ascending conveying track, which intermediate wall is provide with a through-opening in the area of the lowest point of the base and is preferably also provided in the areas located between the shoulders of the base with through-openings leading into the conveying track.
The conveying track can be connected rigidly or in one piece with the base of the storage container and can possibly pass into the latter at a step. An intermediate wall prevents the small parts from impeding one another in their oppositely directed movement on the base of the storage container and on the conveying track. The height and construction of the intermediate wall can vary corresponding to the geometry of the parts.
A particularly advantageous construction with respect to an unimpaired conveying of the small parts is provided when the shoulders are arranged at the inclined b
REFERENCES:
patent: 3338385 (1967-08-01), Sage
patent: 3841471 (1974-10-01), Mead
patent: 4141372 (1979-02-01), Gdanski
patent: 4282965 (1981-08-01), Bates et al.
patent: 4434887 (1984-03-01), Yager
patent: 4457840 (1984-07-01), Nagl
patent: 4844240 (1989-07-01), Hutter et al.
Hutter Odo
Kurz Werner
Sperr Gerhard
Voss Jurgen
Nguyen Tuan N.
Robert & Bosch GmbH
Striker Michael J.
Valenza Joseph E.
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