FR2643146A1 - DEVICE FOR PERFORMING THE VOLUMETRIC DOSAGE OF SOLID PRODUCTS OF FORMS AND IRREGULAR DIMENSIONS AND THE DISTRIBUTION OF THESE PRODUCTS - Google Patents

Abstract

The invention relates to the dosage and distribution of products. This device comprises a magazine 3 for the product to be dosed and an underlying guide 5 which guides the movements of a metering-dispensing slide 6. This slide comprises a hollow box provided, at the top, with a cradle 18 which collects and doses the product in its upward movement, to then unload it into the box. The box is provided with internal screens 24 which eliminate waste and too small pieces of the dosed product, and with a dispensing mouth 25 from which the dosed product can be discharged through an opening 30 of the guide 5. Main application: dosing and distribution of food products.

Description

The present invention relates to a disDosi

  mechanical system of great simplicity and efficiency.

  ficiency, intended to perform the volumetric dosing of

  solid products with irre-

  and to perform the distribution of single doses

  forms of such products thus formed.

  Frequently, in the fields

  more varied of human activity, the need to prepare

  uniform doses of solid products of irreversible size.

  regular, which tend to agglomerate into

  trant or clinging into each other. We are

  the difficult problems that must be

  achieve the goal in a simple and automatic way. This-

  You may need to meet especially in the dosage that must be achieved on food products

  to form uniform portions intended to be

  ballasted or removed for immediate consumption.

  To date, the problem has been solved with incremental weight solutions: in a

  mass of the product, one draws one by one small por-

  incrementally

  until the critical dose has been reached.

  than desired. By adopting this criterion, it was

  hoppers that feed living beds

  at the end of which is mounted a balance, free-falling hoppers of the solid products which are collected on the scales, bucket elevator belts which gradually feed scales and

  vibrating hoppers, with Archimedes screws

lie a balance continuously.

  These weight-based solutions require

  relatively complicated and expensive forms that are absolutely not aporéciés nor adapted in many applications. The present invention now brings to this

  problem a very satisfactory volumetric type solution.

  which, in many cases, joined to a great deal

  and many benefits

in the aspect of applications.

  The invention consists in fact in a device for performing the volumetric dosing of solid products

  irregular shapes and sizes and in

  kill the distribution, characterized in that, in a hollow structure that forms a store intended to contain

  the product to be dosed and an underlying guide to guide

  der the vertical reciprocating movements of a metering dispenser slider, said slider comprises a hollow boot at the upper base of which is associated a

  cradle that collects and doses the product in its movement.

  ascending, and later discharge the oro-

  dosed in the boot, said boot being provided with internal grids for eliminating waste and too small pieces of the metered product, as well as a dispensing mouth where the dosed product can

  be evacuated through an opening of the guide.

  Said cradle is preferably an element

  one end is mounted to pivot on

  the boot of the metering slide-dispenser and is articu-

  by means of a connecting rod which crosses the wall of

  the boot of the slide, which it attacks a slot by means of an end roller of said rod, while its other end can be attacked by a spring pawl whose constituent elements are in

  partly mounted in said boot and partly associated with

said guide.

  In addition, the metering slider-distributor pos-

  a base that can open to unload

  chets and small troo pieces of the metered product, said bottom being articulated by a large side on the edge of the base of the boot of the slider, being kept closed by

  spring means and opening under the action of a

  me of the guide who acts on a pebble of this bottom.

  The vertical movements of the measuring slide

  distributor are controlled by a screw drive and nut actuated by an electric motor.

  The invention will be described in more detail

  with reference to the attached drawings which illustrate

  a practical form of realization and on the

  what; Figure 1 is a general perspective view of the device according to the invention, arranged to charge the doses prepared for packaging means of these doses;

  Figure 2 is a vertical sectional view se-

ion-the trace II-II of Figure 1;

  FIG. 3 is an enlarged side view of the neck.

  dosing and dispensing slide of the device and a

  means that control its operation;

  FIG. 4 is a personal view of the

  slice of Figure 3, some parts of which are

  mounted; FIG. 5 shows the detail of the moving bottom

  of the metering slide dispenser of Figures 3 and 4.

  As shown in FIG. 1, the volumetric dosing and dispensing device of

  irregular shapes and sizes, which agglomerate together

  between them, for example, pieces of

  fresh or frozen food products (such as

  Means of Earth) that it is to fry, includes a robust hollow structure 1 substantially T-shaped,

  equipped with appropriate lateral supports.2

  upper, mainly horizontal, constitutes the magazine 3, provided with a hopper bottom 4, which contains the

  the products to be dosed, while the lower

  5 is used to guide the reciprocating movements of a cou-

  metering slide-dispenser 6 which enters the

  store 3 and goes out, in the center of this store.

  The magazine 3 has, at its end superiorly

  re, a lid 7 suitably sealed, that one can

  to introduce the products to be dosed and, in the

  a refrigerating plant 8, which may

to be omitted.

  The interior of the magazine 3 can be inspected on one side, through an opening 9 closed by a transparent element. Referring also to the other figures of the drawings, it can be seen that the metering slide-distributor 6

  consists of a boot in the shape of a parallelepiped

  tangle with open bases that can be placed alternately

  at the top, in the store 3, and at the bottom, outside

  of this magazine 3, moving along the vertical guide 5 in which it slides easily thanks to

  rollers 6A; its movement is controlled by a mechanism

  which comprises a vertical screw 10, driven by a

  11 and a nut 13, fixed on one side of the boot 6 (on the opposite side, means for

  guidance and balancing telescopic 14).

  The boot of the slider 6 is closed at its lower base by a bottom 15 which can open, against the action of a return spring 16 which keeps it normally closed, by rotation around

  of an edge 17 of the boot 6 on which it is articulated.

lé (Figures 4 and 5).

  At its upper base, the slider 6 contains a cradle 18 mounted to pivot on the boot of the slide 19 at one of its ends and articulated on the guide 5 by the same end; this

  articulation is carried out using a connecting rod 20,

  abutted at 20A on the cradle at one of its ends, which passes through a window 6B of the side wall of the boot 6 and which slidably articulates at its opposite end, by means of a roller 20B, in a slot 21A of the guide 5. At its other end, the cradle cooperates with a pawl 22 formed of a rocker 22A articulated on the boot 6, where it emerges through a slot 6C, and which is provided with a counterweight at its upper end,

  and a lever 22B articulated on the guide 5 and whose ex-

  upper tremity is subject to the action of a spring

  of rapDel 22C while its lower end is

  te to cooperate with the lower end of the balance 22A. Inside the boot that constitutes it, the

  slide 6 carries two grating slides 23 and 24

  binned to each other, in front of the second of which

  the opens a dispensing mouth 25.

  The lower part 5 of the hollow structure 1

  door, in an appropriate position, a cam 26 destined

  born to cooperate with a roller 27 which projects on the bottom 15 of the slider 6, to control the opening of the bottom, and it ends with a drawer 28 open at its

  upper part and that can be extracted by hand.

  Figure 1 shows a pair of

  belt 29 and 29A by means of which the doses of

  duit, delivered by the device through a conveyor chute 31 while the dispensing mouth of the

  slide 3 is at the right of an opening of de-

  loading 30 of the structure 1, can be packed

and / or evacuated from the device.

  cradle 18 is advantageously associated, near the end of this cradle which articulates at 19 on the slider 6, a covering element 32

  which can move relative to a short, thin cover

  33, to change the capacity of the cradle 18. To this end,

  Element 32 may be moved, either manually

  with the aid of automatic devices ap-

ories (not shown).

  For use of the device, after opening the lid 7, the magazine 3 is filled by the

  top, with the product of which it is a question of

  ge, up to the level L target provided but not beyond. If the product to be determined is perishable, or

  frozen or frozen food products (eg

  full, by small pieces of potatoes to fry),

  it is also put into action-the refrigerating unit 8 advantage-

  orally (but which can be omitted in the case where

  the device is intended for another kind of products).

  Then the lid 7 is closed, which can be

insulation.

  The remolding of the magazine 3 is carried out while the slider 6 is completely lowered, so

  not to clutter the central part of the store.

  At this point, the device is turned on, with the slider 6 in the low position and the cradle 18

  of this slide retained by the pawl 22 in a posi-

  substantially horizontally so as to obstruct the

  upper base of the box of this slider.

  The motor 11 rotates the screw 10 in the nut 13 which is fixed to the slider 6, thus causing the upward movement of the slider. During this

  movement upwards, the slide 6, with its ber-

  18, advance in the product contained in the store 3 and thus solicits the oroduit throughout its race,

  parts of this product that may tend to become entangled

  trer first separate from each other and then are collected in the concavity of the cradle 18, until the latter is filled. Near the top dead center of the slide 6, the balance 22A 22 ratchet attack

  the lower end of the lever 22B, which prints it

  rotation in the opposite direction to that of

  watchmaking; under this effect the cradle 18, filled with product, is pushed upwards and inclined, for

  let the excess product collected fall back into the

  gasin 3 along its side edges. During the

  following the rise of the slider 6 and the rotation of the

  22A, the latter emerges from the end of the

  18 which, being no longer restrained and being subjected to the weight of the loaded product, then tilts sharply downwards (FIG. 4), by turning around the axis 19 and

  driving the rod 20, the roller 20B slides li-

  along the slit 21. In this way, the ber-

  18 gives up the whole dose of the product

  holds on the underlying grid rails 23 and 24 of the box which forms the slider 6. In the last segment of the climbing path of the slider 6, the roller B of the connecting rod 20 attacks the upper end of the

  slot 21 and lower the end of the cradle 18 which is ar-

  tilted at 19, this cradle being then forced to

  clockwise until it stops

  that he has taken up the position of departure

  tal. By taking this position, the cradle 18 strikes the balance 22A of the pawl 22 and makes it oscillate in the opposite direction to that of the hands of a clock, against the action of its counterweight; then he

  crosses this pendulum, which then describes an oscilla-

  in the clockwise direction due to its counterweight, to be placed again in Dosition for

  support the free end of the cradle 18.

  To vary the dosage of the product in the cradle 18, just do it. vary the capacity of this element, by moving by hand or automatically (the necessary and appropriate means, which may be of different natures, are not shown) the covering element 32 with respect to the end cover

fixed 33.

  The dose of product that goes down the grill

  23 and 24 inside the boot of the slider 6 gets rid of the smallest fractions as well as Dust and waste that accompany it, these materials gathering on the bottom 15, and it reaches the mouth 25 o , through the unloading opening

  and the conveying chute 31, it reaches the use

  lisation; in the case represented, it will fill

  which are evacuated by means of

  belt 29 and 29A. Waste and undesirable fractions

  The small amounts of the dosed product fall from the bottom 15 into a drawer 28 when the bottom 15 opens under the action of the arrival of the cam 26 on the roller 27, against

  the action of the spring 16, each time the slide

  Distributor 6 arrives at the bottom dead center. From time to time, these Darticles are extracted from drawer 28 by hand.

  The device can now resume its

  cle, the slide 6 going up to fill itself with

  dosed. Next, the operations already described are

re-edit again.

  It goes without saying that, according to its destination, the

  positive will be equipped with appropriate means of orogram-

  movement, which may be continuous, as

  in the case of portion packaging which has been

  written, either discontinuous, fixed-time or on demand,

  if this device is used to transfer

  take the Droduit to another destination, for example, to a food and

distribution of these products.

  In each case, the programming of the

  may be coordinated with the dosing adjustment,

  setting which may also be automatic or at the request of

  of. We can bring many variants and

  modifications to the device which has been described and

  you. For example, the shape and mode of operation of the cradle, which could be variable in volume and able to open downwards, or which could rotate for dosing and discharge of the product, could be varied. which could be controlled by means other than those shown, including by means which are not purely mechanical. Apart from the modification of the shapes and the design of the various elements, one will be able to modify their general disposition as well as their relative positions. All these modifications and variants must be understood as

  within the scope of the present invention.

  Compared with the known technique, the arrangement

  of the invention brings about the important progress

  able to perform a single dose

  particularly precise and uniform light

  solid products with irregular shapes and sizes

  which would tend to cling to each other, to obstruct passages or to form vaults, without causing them any damage. These products are in fact constantly solicited by movements of the metering slide-dispenser, which gently breaks all entanglements or vaults, thereby promoting

  the regular delivery of the load to the cradle,

  which then defines the desired dose by a single, brief excursion from the bottom up without the need for a scale. The device lends itself to the treatment of a very

  a great diversity of solid products which are irregular

  by their shapes and sizes and it is par-

  especially suitable for measuring food products

  delicate surfaces without damaging them.

R E V E N D IC ATI ON S

  1 - Device for performing volumetric dosing

  of solid products of irre-

  for the purposes of distribution, characterized by

  in that in a hollow structure (1) which forms a magazine (3) for containing the product to be dosed and an underlying guide (5) for guiding the movements

  vertical risers of a metering slide

  tor (6), said slider comprises a hollow box at the upper base of which is associated a cradle

  (18) who collects and doses the product during its movement

  ascending and then discharge the dosed product

  in the boot, said boot being provided with integral grids

  (23, 24) intended to eliminate the waste and the hard parts of the metered product, as well as a dispensing mouth (25) where the metered product can

  be evacuated through an opening (30) of the guide (5).

  2 - DisDositive according to claim 1, characterized

  in that the magazine (3) of said hollow structure

  has a bottom (4) shaped hopper and comprises an upper cover (7) and an inspection window (9).

  3 - Device according to claim 2, characterized

  in that the guide connects to the central position

  the hopper bottom in store, said hollow structure having a substantially shaped vertical section

  T and having appropriate lateral supports (2).

  4 - Device according to claim 1, characterized

  characterized in that said cradle (18) is an inclined cradle

  nable, one end of which is pivotally mounted (at 19) on the boot of the metering slide-distributor (6) and is hinged, by means of a connecting rod (20) which passes through the shaft of the boot, to the guide (5) slide, of which

  it attacks a slot (21) by means of an end roller

  said rod (20B) and while its other end

  mity can be attacked by a spring pawl (22) whose constituent elements are partly mounted

  in the boot and partly associated with the guide.

  5 - Device according to claim 4, characterized

  characterized in that the cradle is provided with a control member

setting of its capacity.

  6 - DisDositive according to claim 5, characterized

  characterized in that said member comprises an element of

  cover (32) which can slide in a lid

fixed end (33).

  7 - DisDositif according to claim 1, characterized

  characterized in that the metering slide-distributor possesses

  of a bottom (15) which can open to unload the

  chets and too small pieces of the dosed product.

  8 - Device according to claim 7, characterized

  characterized in that the bottom (15) is articulated by a long side to the ridge (17) of the base of the boot of the slider

  (6), is kept closed by spring means and is

  under the action of a cam (26) of the guide (5) acting

on a roller (27) of this bottom (15).

9 - Device according to claim 8, characterized

  in that the guide (5) carries in its bottom a

  removable reamer (28) in which the waste from

the bottom (15) of the slider (6).

  Device according to claim 1, characterized

  characterized in that the opening (30) of the guide (5) is provided

  a trough (31) for conveying the metered product.

  11 - Device according to claim 1, characterized

  characterized in that the vertical movements of the metering slide (6) can be controlled by a screw and nut control (10, 13) actuated by a motor

electric (11).

  12 - Device according to claim 1, characterized

  in that the magazine (3) is equipped with a

  refrigeration unit (8) and mosses a heat-resistant

ge (7).

  13 - Device according to claim 1, characterized

  it is associated with carriers

  belt for evacuation and packaging.