FR2695004A1 - Force-feeding machine for web-footed birds, e.g. ducks and geese - has hopper with two-way pump and power cylinder to draw in paste-type product and feed it into delivery tube - Google Patents

Abstract

The machine consists of a hopper (1) for the food product in paste form, containing a doser pump (2) which is actuated by a power cylinder (3) to draw in a predetermined quantity of the paste and deliver it through a tube (5) which has its end fitted into the bird's gullet. The pump has a single chamber and a regulator (4), and is linked to the tube (5) through a non-return valve. It has a vertical tubular body and a piston with an adjustable stroke, with a second non-return valve to draw in the paste product. When one of the non-return is open the other is closed. ADVANTAGE - Design simplicity with ease of maintenance and adjustable output.

Description

 The present invention relates to a machine for force-feeding palmipeds, geese and ducks from a pasty product.

The pasty product used is a mixture of food substances such as more or less finely ground corn seeds and water.

 Such machines are known, for example those subject to application No. 90 14687 from the same applicant.

 The machine according to this request comprises a hopper receiving the pasty product in which is disposed a pump controlled by an adjustable stroke cylinder.

The machine pump according to this request comprises a tube at the end of which is mounted a non-return valve and in which is mounted a piston dividing the tube into two chambers with variable capacity, a lower and an upper.

The supply duct is taken from the upper chamber.

 During the upward movement of the piston, the latter jointly pushes the continuous mash in the upper chamber towards the supply duct and sucks, by opening the lower valve, an amount of mash in the lower chamber.

 During the downward movement of the piston, this quantity of food transgresses through a valve of the piston from the lower chamber to the upper chamber.

This construction of the pump requires at the level of the piston a system of seals which are of rapid wear, the more so as the mash can present granular particles with an abrasive effect.

 It has become clear in use that these known machines require significant maintenance which is difficult to reconcile with intensive conditions of use.

 The object of the present invention is to avoid the above-mentioned drawbacks by presenting a machine of simple design and easy to maintain.

To this end, the machine according to the invention comprising a hopper receiving the pasty product, inside which is mounted a metering pump actuated by a jack which sucks a predetermined quantity of pâté and discharges it into a delivery duct intubated in the animal's throat, is essentially characterized in that the pump is a pressure-reducing suction pump with a single chamber associated with a non-return valve mounted on the delivery duct connected to the base of the chamber.

 According to another characteristic of the invention, the pump consists of a vertical tubular body with non-return valve at its lower opening in which is movable a piston with adjustable stroke, the connection of the delivery conduit for the food being formed between the piston and the non-return valve of the pump.

 Other advantages and characteristics of the invention will appear on reading the following description of a preferred embodiment given by way of nonlimiting example and illustrated by the accompanying drawings in which - Figure 1 is a view of the machine according to the invention, - Figure 2 is a sectional view of the pump according to the invention.

 As shown in Figure 1, the machine according to the invention comprises a hopper 1 receiving the pasty product.

In the hopper is arranged a pump 2 controlled by a jack 3 with a system 4 per se known for adjusting the stroke of the jack and therefore the capacity of the pump.

A supply conduit 5 is connected to the pump at the base thereof.

 The pump 2 according to the invention consists of a cylindrical body open at its lower end 6 which receives a non-return valve 7 of known type.

 In the pump body is movable a piston 8 which varies the capacity of the chamber 9.

The connection of the feed 5 delivery conduit is made at the bottom of the pump and of the chamber 9 above the non-return valve 7 and between the latter and the piston 8.

 A non-return valve 10 is mounted on the delivery pipe 5.

During the upward movement of the piston 8, the non-return valve 7 is raised and allows the suction of a quantity of food in the chamber 9.

 Simultaneously, during this movement, the non-return valve 10 of the conduit 5 obstructs the return by suction of the mash contained in the conduit.

During the downward movement, the valve 7 closes under pressure and the food is expelled through the conduit 5 whose valve 5 rises in the opposite direction to the previous one does not prevent the exit of the products.

Claims (3)

 1. Machine for force-feeding palmipeds (geese and ducks) from a pasty product, said machine comprising a hopper (1) receiving the pasty product inside which is mounted a metering pump (2) actuated by a cylinder (3) which sucks a predetermined quantity of food and discharges it into a delivery conduit (5) intubated in the animal's throat, characterized in that the pump controlled by an adjustable stroke cylinder (4) is a single-chamber discharge suction pump associated with a non-return valve (10) mounted on the delivery duct (5).  2. Machine according to claim 1 characterized in that the pump (2) consists of a vertical tubular body with non-return valve (7) at its lower opening (6) in which is mounted a piston (8) stroke adjustable delimiting a chamber (9), the connection of the delivery conduit (5) being produced between the piston (8) and the valve (7).  3. Machine according to claims 1 and 2 characterized in that when the check valve (7) of the pump is open, the check valve of the conduit (10) is closed.