Automatic egg shelling machine on continuous parallel lines, cir

Details Automatic egg shelling machine on continuous parallel lines, cir Automatic egg shelling machine on continuous parallel lines, cir

1990-05-17

1992-02-04

Simone, Timothy F.

Foods and beverages: apparatus

Means to treat food

By isolating a fluid constituent

99497, 99577, 99582, A23J 109, A47J 4314

Patent

active

050851390

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

Automatic machines are already known for shelling eggs and collecting the yolks separated from the whites. These machines comprise a number of devices, substantially similar, placed one after another to deal with eggs fed on one at a time by a special feed system. The form given to these machines is generally circular. For reasons of space it is therefore impossible to increase output to any great extend as the diameter of the circle cannot be widened beyond certain limits.
Neither could the machinery be arranged in a number of concentric circular lines or in several lines on different planes for obvious reasons of mechanical and functional incompatibility among the various devices.
Were either of these arrangements to be tried it would be practically impossible to maintain control over the various operations and so over the sequence of movements for each egg.
Machines at present in use have a low hourly output, are subject to operational difficulties, are bulky and costly to run, bearing in mind the amount of waste and consequent irregular output.


SUMMARY OF THE INVENTION

The present invention avoids these drawbacks offering considerable advantages as well that will be described herein. Subject of the invention is an automatic egg-shelling machine in which the continuous production line revolves on vertical planes carrying with it the movements in sequence of the devices for breaking the shell and collecting the yolk and white.
In this way it is possible to have two or more production lines operating parallel to each other side by side, each line having the same devices foe shelling and collection, the means for obtaining cyclic movement and control, common to the various devices, being aligned transversally on said lines.
The egg feeder also has two or more lines, parallel and set side by side, for carrying in and washing the eggs, operating on vertical planes. Their number and spacing are the same as for the shelling lines to which eggs can therefore be supplied line by line.
Each production line comprises two "half-circuits" one above the other on the same vertical plane, one carrying the shelling device and the other carrying the yolk and white collecting device.
Said devices are drawn along in the cycle by continuous chains.
In each production line the heights of the two half-circuits for shelling and collecting devices. The speed and spacing of said devices on each half-circuit, the direction of movement of one half-circuit and the other, are all such that, on the front of the machine, a shelling device and below it a collecting device are time to take up these corresponding positions, on each production line, with the moment of transfer of each egg from the feeder to the shelling device, the front of said feeder substantially matching with the front of the main machine.
On the front of the machine the shelling device makes a downward movement while the collecting device makes an upward movement.
The chief components of each shelling device are: half-pan fixed to one of two symmetrical jaws; two half-pans;
Jaw articulation axes are substantially parallel to the shelling device's direction of movement.
The half-pans and the head each have an arm whose axes of articulation are substantially parallel and are perpendicular to the direction of feed.
The machine is equipped with means for: both the pressing head and from the blades until the collecting device lies below the shelling device; below the sheller, and bringing the blades up sharply to hit the egg between the two half-pans; fresh cycle when one is completed.
In the way the following sequence of operations occurs:
The means for moving away the pressure head and the blades from the half-pans, and for subsequently breaking the shell to allow the contents to fall, consist of fixed cams on the front of the machine, against which cams the back ends of the arms, respectively supporting the head and half-pans, react on overcoming resistance from return springs. Said cams function along a trajectory slightly preceding the

REFERENCES:
patent: 3029849 (1962-04-01), Willsey
patent: 3185194 (1965-05-01), Ellis et al.
patent: 4134333 (1979-01-01), Warren
patent: 4137838 (1979-02-01), Warren
patent: 4321864 (1982-03-01), Willsey
patent: 4534284 (1985-08-01), Fujimura et al.
patent: 4764387 (1988-08-01), Willsey
patent: 4773322 (1988-09-01), Willsey

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