FR2628153A1 - Dispenser delivering adjustable dose of cereal additive - has pump supplying basin with material, overflow pipe, two cylinders and piston - Google Patents

Abstract

A dispenser delivering an adjustable volumetric does has a pump supplying a basin with material from a reservoir, a mobile overflow pipe returning excess material from the basin to the reservor and controlling the level of material in the basin, two cylinders communicating with a bucket with an outlet aperture dispensing the material, and a pair of pistons moving in the cylinders connected to the two ends of a lever. USE/ADVANTAGE - For treating cereals with liq. The dose dispensed is easily changed.

Description

() FRENCH REPUBLIC Publication No. 2 628 153 (to be used only for

  the NATIONAL INSTITUTE reproduction orders)

PROPERTY: INDUSTRIAL

  OF INDUSTRIAL PROPERTY National registration number 88 02882 PARIS

(Int Cl ': F O4B 13/00 // A23 B 9/00.

(A1 PATENT APPLICATION

  ) Date of filing: March 7, 1988. t Applicant (s): ETS DENIS, Société Anonyme. - FR.

X Priority

Q Inventor (s): Pierre Denis.

  (Date of public availability of the

  application: BOPI "Patents" n 36 of September 8, 1989.

  References to other national documents appearing

rentés s rn Holder (s)

(Agent (s): Office Blétry.

  (5 Device for delivering a predetermined and adjustable volume dose of a product.

  57 Device for delivering a predetermined volume dose

  born and adjustable product, comprising a container 13 for receiving said product from a tank supplying said tank with a pump and an overflow pipe returning the excess 8 of product in the tank to the tank , characterized in that r--. 'L the overflow pipe 7 is movable to allow adjustment j13 of the level of product in the receiving tank 1 and in that 12a the metering device comprises two piston jackets 9, I it I - 9 "communicating with a trough 8 having an outlet orifice l making it possible to deliver the treatment product to the \

<. . 12

  product to be treated, shirts in which two _ move.

  I pistons 12, 12a connected to the two ends of a lever

joint control 14.

  N Ut y- The invention relates to a device for delivering a predetermined and adjustable volume dose of a product, and in particular of a fluid treatment product

for cereals.

  Cereal processing machines with a product in particular intended for their conservation during their storage after bagging, whether they are intended for consumption (human or animal) or for reproduction (seeds), conventionally include a metering device whose operation is linked to the rocking movement of the hopper receiving and dosing the product to be treated. This dosing device consists of dosing spoons which pour their contents into a receiving tank located under the dosing hopper. When the user wishes to modify the dose of treatment product, he must change the measuring spoons, which requires stopping the machine

  and to carry out various manipulations.

  To remedy such drawbacks, the present invention provides a device for delivering a predetermined and adjustable volume dose of product, comprising a container for receiving said product from a reservoir supplying said container using a pump and an overflow pipe returning excess product in the b & oz to the tank, characterized in that the overflow pipe is movable to allow adjustment of the level of product in the receiving tank and in that the metering device comprises two piston liners communicating with a trough having an outlet orifice making it possible to deliver the treatment product to the product to be treated, shirts in which move two pistons connected to the two ends of a

common control lever.

  Other characteristics will appear on reading

  of the following description, made with reference to

  annexed drawings in which: FIG. 1 is a perspective view of the device according to the invention, associated with a dosing hopper of

cereals.

  Figure 2 is a sectional view of the receiving tank and the overflow pipe according to the invention, and Figure 3 is a schematic view of the assembly

  sleeve-piston-control lever according to the invention.

  The description will be made with reference to a product

  liquid treatment. It goes without saying that the device could be adapted to more or less viscous products and even possibly to powdery products as long as they have a fluidity.

sufficient.

  The device according to the invention is particularly designed to deliver a predetermined and adjustable dose of treatment product to a determined dose of product to be treated, which consists in particular of cereals, seeds, grains or similar products before they are bagged and stored. , in conjunction with

  determination of the dose of product to be treated.

  A receiving and dosing tank 1 is mounted next to it

  of a dosing hopper 2 of product to be treated mounted on a scale 3. This container conventionally comprises a cover 4 and a receptacle 5 of any shape, for example that shown in FIG. 1. A pipe 6 ensures the filling of the container from an external tank (not shown) & using a pump whose

  operation is related to the operation of the machine.

  An overflow pipe 7, communicating with the external tank, is mounted in the tank 1 so

  so that it is movable along its longitudinal axis.

  Thereby. the more or less retracted position of the pipe 7 in the tank makes it possible to adjust the level of treatment liquid in the tank. A bucket 8 is provided in the tank and comprises two jackets 9,9a of piston in communication with the tank and a discharge pipe 10 communicating with a tank for receiving the product to be treated coming from the dosing hopper 2. The lower end 11 of each piston liner is flared and therefore of larger diameter than the liner. A piston 12,12a is mounted in each sleeve at the end of a connecting rod 13,13a, the two connecting rods being fixed at the two ends of a lever

joint control 14.

  When the control lever 14 is, for example in the position shown in FIG. 3 (piston 13a in the low position), due to the flared shape of the lower end of the jacket 9, the liquid contained in the tank enters the shirt until the liquid level in the tank is reached. By rotation of the lever around its axis 15, rotation conventionally linked to the operation of the scale of the dosing hopper, the piston 12 raised a determined volume of treatment product and pours it into the bucket 8 from which it flows through line 10 to the product to be treated. The volume of product depends on the level of the liquid in the tank; the lower the level, the lower the volume withdrawn. During this rotation, the lever lowers the piston 12a from its closed position of the bucket 8 in the jacket 9a and when the piston 12a is in the low position in the flared part of the jacket 9a, liquid penetrates therein. at the level of liquid in the tank. The reciprocating movement of the lever therefore makes it possible to deliver doses

  predetermined and adjustable product.

  To facilitate the adjustment of the overflow level and therefore the determination of the volume of treatment product, a graduated scale 16 fixed to the outside

  of the tank makes it possible to identify the position of the overflow pipe

  full 7 via a needle 17

  outside, linked to the end of the overflow pipe.

  The strip 16 is graduated so as to allow direct reading of the dose of liquid delivered as a function of the movement of the overflow pipe. The dose could for example be between 10 and 70 cm3 for

grain processing.

  In addition, due to the constant circulation of liquid between the external tank and the dosing tank maintained by the overflow pipe,

  deposit problem at the bottom of the tank.

  Although the invention has been described in relation to the use of the dosing tank in a cereal processing machine, it is clear that other applications of the dosing tank are possible and that it can be used in any other type of machine, by connecting the control lever & a suitable

this machine.

Claims (3)

  1.- Device for delivering a predetermined and adjustable volume dose of product, comprising a container for receiving said product from a reservoir supplying said container using a pump and an overflow pipe returning the excess product in the worm tank   the tank, characterized in that the overflow pipe   full (7) is movable to allow adjustment of the level of product in the receiving tank (1) and in that the metering device comprises two piston jackets (9.9a) communicating with a trough (8) having an orifice outlet (10) for delivering the treatment product to the product to be treated, liners in which move two pistons (12,12a) connected to the   two ends of a common control lever (14).   2.- Device according to claim 1, characterized in that the end of the overflow pipe (7) movable in the dosing tank (1) is connected to an external needle (17) moving along a strip graduated   (16), simultaneously with the movement of the overflow pipe full. 2628 1 53 1/2 FIG. 1 2628 1 53 2/2 lai r FIG-2 -5 FIG. 3 FIG-3