FR2730903A1 - Egg production unit with shock free egg conveyors - Google Patents

Abstract

Counter-running conveyor belts (1,3) effectively provide moving floors beneath two rows of nesting boxes. a bed of litter covering each conveyor receives the eggs gently as they are laid. Eggs, with accompanying litter, are transferred at one end (17) from one conveyor (1) to the other (3) by a rotary transporter (2). At the other end a sorter (7) carries eggs and litter up a ramp on a series of rotating rollers (19). The litter, falling through gaps between the rollers, is returned (9) to the first conveyor, while the eggs are carried on to a rotary collection platform (8). In variants, the litter continues with the eggs to the collection point, or is returned for recirculation by a suction conveyor.

Description

Technical field of the invention
The present invention applies to the poultry sector and more particularly to the collection of eggs for which the uncomfortable position of the breeder (nesting boxes at ground level), the duration of collection (minimum 2500 eggs daily on 150 meters of nesting boxes in canes repro ), the risks of micro-frosting devaluing the egg (eggs intended for reproduction), the cleaning of soiled litter, the "breaking" of the nests disadvantaging the brooding, are part of the difficulties and permanent concerns of the breeder.

 The invention can be applied to any other field where the transfer to 180 of fragile products raises problems.

Benefits of the invention
- By the transfer to 180 by carpet, the invention allows the twinning of nesting boxes, currently separated by a more or less wide collection corridor, this twinning provides an additional breeding area of 50 to 150 m2 which corresponds substantially to a additional production of 250 to 1,300 eggs per day depending on the type of farming.

 - By collecting at a single point, which can be located outside the more or less vitiated atmosphere of the laying workshop, the invention saves time from 3 H to 6 H by collection depending on the type of 'breeding.

 - By transferring complete nests, the invention allows the change of nest park (increased stress of incubators facilitating their resumption of laying more quickly, ease of litter cleaning (cleanliness of eggs).

Statement of the invention
The accompanying drawings illustrate the invention.

- Figure 1 shows in plan the complete circuit of nests with egg collection after sorting the litter.

- Figure 2 shows the section along AA - Figure 3 shows the section along BB - Figure 4 shows a cane nesting unit repro installed on the conveyor belt - Figure 5 shows in plan the end of a collection circuit without sorting - figure 6 represents the CC section - figure 7 represents the DD section - figure 8 represents the drive system of a sorting roller - figure 9 represents the EE section - figure 10 represents the partial view a transfer table - Figure 11 shows the FF section.

 With reference to these drawings, the system described comprises a nest base constituted by a carpet (1-3) supporting a litter of any kind, the nesting boxes (10) are installed above the carpets and can be combined . To avoid any risk of micro-cracks during the r @ assage of the eggs, to facilitate the reconditioning of the litters and their cleaning, the mat (1) ensures the transfer of the litter and the eggs at a linear speed of 3 to 9 m / minute on a circular conveyor belt (2) which transfers the products to 180 on the conveyor belt (3) which passes over a scraper (24) deposits them on a conveyor belt (4) which transfers the products onto a circular conveyor belt (5) serving as a table egg collection and cleaning of soiled litter. The transfer to 180 is constituted by a table (11) supporting a circular mat (2-5-8 or 9) of variable diameter and semi-rigid texture driven either in its center (12) by mechanical or electromechanical means (25), or at its periphery (13).

In the latter case, using a notched or stuffed roller (14), the carpet being compressed against it by a free roller (15) or driven according to the texture of the carpet and the load to be transferred, the speed of this mat is variable and its rotation takes place around a free axis at the central point (12). The location of the table relative to the feed belt is adjustable according to the curvature of the belt (16) so that the feed and return belt is applied against the rotary belt without interfering with rotation.

The linear speed at point (17) is approximately 10% higher than the speed of the conveyor belt. At the exit of the circular carpet (5) the litter is deposited on the carpet (1) via the carpet (6).

In some cases, at the outlet of the carpet (3) is installed a sorter (7), the litter and egg unit is brought into contact with rollers (19).

Each roller (19) is fixed at its two ends to a chain.

links (20) moved by a variable speed drive, depending on the speed of arrival of the transfer, the spacing between the rollers is a function of the diameter of the eggs of each type of breeding. Each roller (19) in its movement from M to R rotates by friction against a fixed band (21) furnished with any flexible element (22) ensuring sufficient adhesion to the rollers during their passage from M to R and the plating of the chain along a guide (23). The rotation of the rollers during the transfer of the eggs from M to R ensures the separation of the litter eggs, the latter evacuated under the assembly (7) on the rotary belt (9). In other cases, and according to the types of litter, this one at the exit of the carpet (4) is put back directly on the carpet (1) by means of a motorized fan releasing the litter in a cyclone above of the carpet (1) after suction of the latter at the contact between the belts (4 and 5), in this case, the carpet (6) is not useful. In all cases, the continuity of the transfer circuit ensures automatic replacement of the litter boxes.

The whole system is powered by variable speed gearmotors.

It is noted that all or part of the devices described in FIG. 12-3-4-10 and 11 can also be applied to farms without litter by improving the conditions for collecting eggs, in this case, the rollers (19) of the assembly (7) move without any obligation to rotate about themselves

Claims (4)

 CLAIMS 1) Device for collecting eggs by bringing the complete nest using carpets (1-2-3) by passing over a sorter (7) and automatic replacement of the litters. 2) Device according to claim 1 characterized with regard to the transfer of the nests of the carpet (1) on the carpet (3), by a table (11) with circular carpet (2) driven in its center (12) or on the periphery . 3) Device according to claim 1 or 2 characterized with regard to the separation of eggs-litter by a sorter (7) with rotary rollers (19). 4) Device according to the preceding claim characterized in that the separate litter of eggs is returned to the carpet (1) via a transfer table (9) located under the sorter.