FR2628174A1 - Screw conveyor mixing cereals with liquid - with flexible extension to rubber seal fitted to its thread - Google Patents

Abstract

A machine treating cereals with a liquid has a hopper, an inclined trough with a semicircular lower cross-section, a mixing screw in the trough, bagging openings at the lower end of the trough, a rubber seal mounted on the thread of the screw, and a flexible extension to the seal engaging the semicircular section of the trough. ADVANTAGE - The cereal is not damaged.

Description

() FRENCH REPUBLIC Publication No. 2,628,174 (to be used only

  for INSTITUTE NATIONAL Reproduction Orders)

OF INDUSTRIAL PROPERTY

  INDUSTRIAL PROPERTY N of national registration: 88 02883 PARIS Int CI ': F 16 J 15/32; A 23 B 9/00; A 01C 1/06,

Q APPLICATION FOR PATENT OF INVENTION A1

  ) Filing Date: March 7, 1988. Qj Applicant (s): ETS DENIS, Limited Liability Company. - FR.

) Priority

) Inventor (s) Pierre Denis.

  _ Date of the public availability of the

  BOPI application "Patents" No. 36 of 8 September 1989.

  References to other national documents appearing

paid: rns Holder (s):

() Agent (s): Office Bletry.

(Worm joint.

  57 Grain processing machine with a liquid treatment product, comprising a dosing hopper, a trough

  reception of the materials to be treated and the product of

  a mixing auger mixing the materials and the treatment product, and

  leading into a sloping trough with a semi-lower section

  circular the final product to bagging mouths,

  characterized in that the seal between the mixing screw 11, 12 and the auger 6 is provided by a rubber seal 13 mounted on the tape 12 of the screw and having a flexible extension 15 engaging the semi-circular lower part. circular

  1 7 of the mixing trough in which is housed the worm.

  Sales of the fascicles NATIONAL PRINTING, 27. rue de la Convention 75732 PARIS CEDEX 15 LD Sale of the fascicules to the NATIONAL IMPRIMERIE, 27, rue de la Convention -75732 PARIS CEDEX The invention relates to a seal for worm, and more particularly a worm joint effecting the mixing of grains or similar products, in a trough,

  with a suitable treatment product.

  Cereal processing machines, among others, can be used to mix grains, seeds, peas and similar products evenly. The seeds to be treated are dosed in a weigh hopper which delivers them, according to a previously determined weight, in a tray where the treatment product is also dosed, generally in liquid form. and the mixing of the two products is carried out by an endless screw which ensures the mixing of the grains and the treatment product during the journey between the tank and the upper end of the trough in which the inclined screw is working, most often at an angle of 30 '. This end is for example constituted by mouths of bagging seeds or

treated grains.

  The worm is conventionally a ribbon screw operating in a trough whose lower part is semicircular in shape, the upper part being of any shape and most often semirectangular. It is therefore necessary to seal between the lower semi-circular portion of the trough and the ribbon of the screw to prevent the seeds and the product from falling back under the effect of gravity and do not disturb the dosages previously established. This is ensured conventionally by brushes or brushes mounted on the edge

of the worm.

  The bristles of the brushes or brooms, however, have the disadvantage of damaging the fragile products, to allow their passage in the wrong direction and not to prohibit the descent of liquid or pasty treatment product. To overcome such drawbacks, the invention provides in an apparatus of the type previously described, a rubber seal or similar flexible material, mounted on the ribbon of the mixing screw and having an extension

  flexible contacting the semi-lower

  Circular trough in which is housed the worm. The invention which is the subject of the present application for

  patent will be better understood by reading the description

  Next, with reference to the accompanying drawings in which FIG. 1 is an overview of the cereal processing machine and the like, FIG. 2 is an enlarged and partial view of the ribbon screw provided with a gasket according to the invention, and FIG. 3 is a schematic view of the principle of the joint,

in section, according to the invention.

  The processing machine 1 comprises a metering hopper 2 communicating with a receiving tray 3 into which the delivery pipe 4 of a metering device 5 of a suitable treatment product. The products, seeds, seeds or grains to be treated poured into the tray 3 receive the necessary dose of product and are removed from the tray 3 by a tape screw housed in a trough 6 whose

  lower part 7 is semicircular in shape <fig. 3).

  The worm 8 <fig. 2- and 3) raises the seed and treatment product mixture to its upper end 9 which has one or more mouths

bagging 10 of the treated product.

  The worm. not visible in fig. 1, is shown schematically in FIG. 2 and comprises an axis 11 driven by a motor not shown and provided with a ribbon 12 spirally wound on the axis 11 and shown only partially in FIG. 2. The external part of the ribbon 12 is equipped with a seal 13, mounted on the ribbon by means of a groove or groove 14 and having on its external face a flexible extension 15 coming into contact with the semicircular lower part of the ribbon. 6. This extension takes during the rotation of the screw in the form of a comma in contact with the lower portion 7 of the trough 6. When the screw rotates, the extension 15 leaves

  contact with this lower part 7 and describes the half

  circle 16 shown in broken lines in FIG. 3.

  The extension 15 of the seal 14 thus ensures the seal between the ribbon 12 of the worm 8 and the lower part 7 of the trough by preventing the products cue mixture and transports the screw down and mix

with the next dose of products.

Claims (1)

Grain treatment machine with a liquid treatment product, comprising a dosing hopper, a receiving trough of the materials to be treated and the treatment product, a mixing screw mixing the mixture with materials and the treatment product and feeding into an inclined trough with semicircular lower section the final product to bagging mouths, characterized in that the seal between the mixing screw (11, 12) and the trough (6) is provided by a seal of rubber (13) mounted on the tape (12) of the screw and having a flexible extension (15) coming into contact with the semicircular lower part (7) of the mixing trough in which the screw is housed unending. I / 11 _ FIG.1 13 the -, q FIG - .. 2 FIG13