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EP0095566B1 - Dispositif de dosage - Google Patents

Dispositif de dosage Download PDF

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Publication number
EP0095566B1
EP0095566B1 EP83102760A EP83102760A EP0095566B1 EP 0095566 B1 EP0095566 B1 EP 0095566B1 EP 83102760 A EP83102760 A EP 83102760A EP 83102760 A EP83102760 A EP 83102760A EP 0095566 B1 EP0095566 B1 EP 0095566B1
Authority
EP
European Patent Office
Prior art keywords
container
brush
scraper
bulk material
sieve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83102760A
Other languages
German (de)
English (en)
Other versions
EP0095566A2 (fr
EP0095566A3 (en
Inventor
Helmut Esch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT83102760T priority Critical patent/ATE28805T1/de
Publication of EP0095566A2 publication Critical patent/EP0095566A2/fr
Publication of EP0095566A3 publication Critical patent/EP0095566A3/de
Application granted granted Critical
Publication of EP0095566B1 publication Critical patent/EP0095566B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements

Definitions

  • the invention relates to a dosing device with a container with a sieve arranged on the underside for the passage of flock in the form of rod-shaped bulk material and a brush roller arranged within the container over its entire width, consisting essentially of a rotatably drivable in the container at both ends Via a shaft mounted in each of the container end walls and a plurality of brush strips arranged evenly distributed in the circumferential direction and carrying substantially radially directed bristles, which are held by several brush strip carriers arranged in a rotationally fixed manner for supporting the brush strips on the shaft, and one in the sieve in the container oppositely arranged and formed by guide walls with upwardly open areas for the bulk material.
  • Dosing devices of the type described above are known to the applicant from its own production.
  • the rod-shaped bulk material for example flock
  • the brush roller arranged in the container rotates.
  • the chambers formed by the brush strips with the bristles arranged on them on the brush roller are filled with bulk material as they pass the filling opening, which they later place on the sieve arranged opposite the inlet opening and sweep through the sieve with the bristles of the brush strips .
  • This must be done with great uniformity so that the coating density of the object to be coated with the bulk material has the desired uniformity.
  • An influencing variable here is the weight pressure of the bulk material on the sieve of the container.
  • the invention is therefore based on the object of proposing a metering device with which the bulk weight of the bulk material which is deposited on the sieve can be kept uniform.
  • a wiper is provided on the inlet side of the brush strips from the inlet opening into the container with a scraper lying parallel to the shaft for wiping off excess bulk material.
  • This scraper ensures that the filling state of the individual chamber formed by the brush strips carrying the bristles is always uniform and its size is dependent on the position of the scraper edge.
  • the presence of the scraper makes it possible to always add large quantities of bulk material, since the excess bulk material is always stripped off by the scraper, so that a uniform filling level is nevertheless achieved. At the same time, this prevents underfilling.
  • US-A-2 293 871 shows a feed device in which a roller equipped with vanes rotates in a cylindrical chamber.
  • the wings are arranged in a star shape and, as a result of this arrangement, form chambers which are bounded by adjacent wings.
  • the wings themselves contain radially directed, elastic, leaf-shaped elements which bear in the radial direction on the cylindrical inner wall of the container in which the roller is arranged.
  • the cylindrical container has a filling opening and a discharge opening and furthermore has a scraper made of elastic material in the region of the filling opening, which is intended to prevent the individual chambers of the roller from being overfilled.
  • Such a device is completely unsuitable for dosing flock.
  • the filling quantity of each individual chamber cannot be set using the scraper provided there.
  • the basic setting as would be necessary with a fixed scraper, must be made via the chamber dimensions, which is practically impossible. It is also not possible to change the filling quantity using the scraper.
  • the scraper provided there is usually without function.
  • the filled and transported material should never overfill the individual chambers. However, should an overfill occasionally occur, this overfill will be eliminated by the scraper provided there. This document does not provide any suggestion to use such a scraper in metering devices for flock as a metering instrument for filling the device.
  • the stripper is arranged with at least one component perpendicular to the sieve in a variable position.
  • the fill level and the fill weight can be adapted to the specific properties of the bulk material.
  • At least the guide wall on which the scraper is arranged is tangential to the circular cross section the brush roller and is arranged approximately at an angle of 45 ° in the container. In this way, a particularly advantageous position of the scraper and an even more uniform filling of all chambers is achieved.
  • the drawing shows a view into a metering device 1 with the end wall removed.
  • the dosing device 1 consists essentially of a container 2 with the container side walls 6, which has a sieve 3 on its underside 4. Opposed to the sieve 3 are angled guide walls 14 and 15 which on the one hand come to rest on the side walls 6 and on the other hand form an inlet opening 7 and which run approximately at an angle of 45 ° tangentially to the circular cross section of the brush roller.
  • the bulk material to be dosed is continuously filled into the inlet opening 7 in the direction of fall 18.
  • a brush roller consisting essentially of a shaft 8 rotatably mounted on the end walls of the container 2, on which brush strip carriers 11 are arranged in a rotationally fixed manner with the shaft 8, on which are distributed evenly in the circumferential direction around the shaft 8
  • Brush strips 10 with substantially radially directed bristles 9 are arranged and fastened parallel to the shaft 8.
  • the brush roller 5 rotates during operation in the direction of arrow 12, so that the bulk material filled in through the inlet opening 7 is carried along by the bristles 9 and the brush strips 10 and placed on the sieve 3 of the container and brushed through the sieve by the continuing bristles 9 .
  • a scraper 16 is attached to the inlet side 13 of the guide wall 14 in a position parallel to the shaft 8.
  • the scraper edge of the scraper 16 which is also parallel to the shaft 8, simply scrapes off excess bulk material, so that the chambers formed by the brush strips 10 and the bristles 9 arranged thereon then pass through the scraper 16 and its scraper edge 17 in the direction of rotation always have the same level. Since it is now possible to ensure constant overfilling due to the effect of the scraper 16, the risk of underfilling is also eliminated.
  • the brush strips 10 can be removed from the brush strip carriers 11 of the brush roller 5 and turned or exchanged for other brush strips, for example with different bristles 9 or a different length of the bristles 9.
  • the metering device 1 can be set up for different bulk goods or different bulk goods quality, or worn bristle strips can be exchanged very simply.
  • the scraper 16 can be arranged movably on the guide wall 14 so that the position of the scraper edge 17 can be changed.
  • the entire metering device 1 described is part of an overall system for coating any surface, for example for coating carpets, wallpaper or other surfaces, with rod-shaped bulk material, preferably with so-called flock, in which the rod-shaped bulk material after streaking through the sieve 3 of the metering device 1 in aligned with an electrostatic field and processed further in this aligned state.
  • the use of the scraper 16 according to the invention considerably improves the metering accuracy of the metering device 1 and simplifies the monitoring effort of the overall system.
  • the devices for filling the dosing device 1 with bulk material can be made simpler because it is now not necessary to ensure that the exact same amount of bulk material is filled in as the sieve 3 leaves below.
  • the use of the scraper 16 according to the invention is therefore associated with considerable advantages.

Landscapes

  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Paper (AREA)
  • Basic Packing Technique (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Claims (3)

1. Dispositif de dosagé comportant un récipient (2) muni d'un crible (3) placé sur sa face inférieure, pour laisser passér dés flocs tombant sous la forme d'un matériau en vrac formé de bâtonnéts, et une brosse cylindrique (5) s'étendant à l'intérieur du récipient, sur toute la largeur de ce dernier, et constituéé essentiellement d'un arbre (8) monté, de façon à pouvoir être entraîné en rotation, dans le récipient, en étant respectivement supporté, à ses deux extrémités, par des coussinets de paliers disposés dans des parois frontales respéctives du récipient, et de plusieurs barrettes (10), qui sont disposées selon une répartition uniforme dans la direction circonférentielle tout en portant des poils (9) orientés dans une direction d'ensemble radiale et sont maintenues par plusieurs porte-barrettes (11) montés, avec un blocage en rotation et selon une répartition appropriée, sur l'arbre pour réaliser un soutien des barrettes de la brosse, ainsi qu'une ouverture (7) d'admission pour lé matériau en vrac, disposée à l'opposé du crible dans le récipient et formée par des parois de guidage (14, 15) avec des zones s'ouvrant vers le haut, caractérisé en ce qu'il est prévu, sur la paroi de guidage (14) s'étendant du côté admission (13) des barrettes (10) de la brosse, depuis l'ouverture (7) d'admission dans le récipient (2), une racle (16) munie d'une arête de raclage (17), qui s'étend parallèlement à l'arbre (8), pour éliminer par raclage le matériau en vrac en excès.
2. Dispositif de dosage selon la revendication 1, caractérisé en ce que la racle (16) comporte au moins un élément constitutif qui est monté dans une position variable, perpendiculairement au crible (3).
3. Dispositif de dosage selon la revendication 1 ou 2, caractérisé en ce qu'au moins la paroi de guidage (14), sur laquelle est montée la racle (16), est disposée dans le récipient de manière à être tangente à la section transversale circulaire de la brosse cylindrique, approximativement sous un angle de 45°.
EP83102760A 1982-05-28 1983-03-21 Dispositif de dosage Expired EP0095566B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83102760T ATE28805T1 (de) 1982-05-28 1983-03-21 Dosiereinrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8215591U 1982-05-28
DE8215591 1982-05-28

Publications (3)

Publication Number Publication Date
EP0095566A2 EP0095566A2 (fr) 1983-12-07
EP0095566A3 EP0095566A3 (en) 1985-05-22
EP0095566B1 true EP0095566B1 (fr) 1987-08-12

Family

ID=6740569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102760A Expired EP0095566B1 (fr) 1982-05-28 1983-03-21 Dispositif de dosage

Country Status (3)

Country Link
EP (1) EP0095566B1 (fr)
AT (1) ATE28805T1 (fr)
DE (1) DE3372935D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2167725C2 (ru) * 1999-06-28 2001-05-27 Воронежская государственная лесотехническая академия Машина для очистки и калибровки семян
CN111001575B (zh) * 2019-12-31 2021-04-02 安徽盛源农产品购销股份有限公司 一种用于蒜片加工前处理筛分装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293871A (en) * 1940-12-14 1942-08-25 Edwin J Fithian Pneumatic feeder
US2573952A (en) * 1948-07-29 1951-11-06 Thomas O Bretherton Apparatus for depositing strips of adhesive upon a base material
DE1177044B (de) * 1953-01-28 1964-08-27 Eloflock Oberflaechenveredelun Elektrostatische Beflockungsvorrichtung
FR1130301A (fr) * 1954-08-22 1957-02-04 Svenska Flaektfabriken Ab Vanne pour matériaux en grains
DE1013575B (de) * 1954-09-15 1957-08-08 Edmond Harvengt Vorrichtung zum Verteilen oder Abgeben von festem, lockerem Gut mittels eines vorzugsweise als Zellentrommel ausgebildeten Trommeldrehschiebers
FR1478383A (fr) * 1965-12-29 1967-04-28 Procédé et dispositif pour la distribution de fibres, produits non tissés, pour machine à floquer
DE2740261C2 (de) * 1977-09-07 1982-10-07 Joachim 6470 Büdingen Müller Vorrichtung zum Aufbringen eines elektrisch aufgeladenen Beflockungsmaterials
FR2492788A1 (fr) * 1980-10-24 1982-04-30 Batithermic Procede et dispositif pour la mise en place d'un produit granuleux en vrac, tel qu'un isolant en vrac pour les constructions

Also Published As

Publication number Publication date
DE3372935D1 (en) 1987-09-17
EP0095566A2 (fr) 1983-12-07
EP0095566A3 (en) 1985-05-22
ATE28805T1 (de) 1987-08-15

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