FR2855989A1 - Sieve comprises body with mount and separation unit where filter element is pre- stretched and tensioned by elements associated with separation unit not mount - Google Patents

Sieve comprises body with mount and separation unit where filter element is pre- stretched and tensioned by elements associated with separation unit not mount Download PDF

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Publication number
FR2855989A1
FR2855989A1 FR0307249A FR0307249A FR2855989A1 FR 2855989 A1 FR2855989 A1 FR 2855989A1 FR 0307249 A FR0307249 A FR 0307249A FR 0307249 A FR0307249 A FR 0307249A FR 2855989 A1 FR2855989 A1 FR 2855989A1
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FR
France
Prior art keywords
mount
frame
leaf
separation element
separation unit
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.)
Granted
Application number
FR0307249A
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French (fr)
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FR2855989B1 (en
Inventor
Eric Villaume
Jean Pierre Bergagnini
Alain Duvoid
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.)
Gantois SARL
Original Assignee
Gantois SARL
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Publication date
Application filed by Gantois SARL filed Critical Gantois SARL
Priority to FR0307249A priority Critical patent/FR2855989B1/en
Publication of FR2855989A1 publication Critical patent/FR2855989A1/en
Application granted granted Critical
Publication of FR2855989B1 publication Critical patent/FR2855989B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/012—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/06—Cone or disc shaped screens

Abstract

A mount is made of a body (2) and a cover (3) which can be closed and locked, after positioning, using elastic holders (4). The filter medium is located in the mount at the level of the enclosure. The separation element is pre-stretched and can be separated from the body and cover. The means of tensioning the filter element are associated with the separation element and not the mount. A sieve comprises a mount holding a separation element (1) containing a filter medium extended over a chassis. The bottom edge of the body is rounded towards the inside to form a wing (5) pressing on the separation element. This wing can be continuous or discontinuous and the upper edge of the frame is shaped to give a flat peripheral shoulder on which the separation element rests. The shoulder is extended upwards by a collar (7). The elastic holders are fasteners of which the stretchers, and the stretching springs, are fixed to the body and the frame is equipped with hooks designed to receive the stretching springs. The frame is made in two parts.

Description

ii

L'invention concerne un tamis de contrôle à élément de séparation interchangeable.  The invention relates to a control sieve with an interchangeable separating element.

Un tamis de contrôle est généralement composé de trois éléments: - un corps annulaire, - un élément de séparation de type toile ou média filtrant, - et un battant annulaire solidaire du corps pour former une armature rigide maintenant la tension de l'élément de séparation.  A control screen is generally made up of three elements: - an annular body, - a separation element of the canvas or filter media type, - and an annular flap secured to the body to form a rigid frame maintaining the tension of the separation element .

On connaît déjà différentes sortes de tamis composés de ces trois éléments.  We already know different kinds of sieves composed of these three elements.

Ainsi, le brevet FR 2 729 872 décrit un procédé d'assemblage définitif de ces trois 10 éléments, l'élément de séparation étant assemblé directement soit sur le corps du tamis, soit sur son battant. Un tel tamis est monobloc et lorsqu'il est usé, il faut tout changer. Le brevet FR 2 081 099 décrit quant à lui un système de tamis en plusieurs parties, avec la trame sertie sur le battant. Mais la partie à changer reste encore importante car elle est composée de l'élément de séparation et du battant. 15 De plus, si l'élément de séparation est de la toile, il faut prévoir de la tendre lors du montage. Le brevet FR 2 313 139 détaille un moyen d'obtenir cette tension. Le corps appuie sur l'élément de séparation bloqué et tendu dans le battant.  Thus, patent FR 2 729 872 describes a method of definitive assembly of these three elements, the separating element being assembled directly either on the body of the screen or on its leaf. Such a sieve is in one piece and when it is worn out, everything must be changed. Patent FR 2 081 099 describes a sieve system in several parts, with the frame crimped on the leaf. But the part to be changed is still important because it is composed of the separating element and the leaf. In addition, if the separating element is canvas, provision must be made for tensioning it during assembly. The patent FR 2 313 139 details a means of obtaining this tension. The body presses on the separating element blocked and stretched in the leaf.

L'invention a pour but de permettre le changement de l'élément de séparation indépendamment du corps et du battant.  The object of the invention is to allow the separation element to be changed independently of the body and the leaf.

Elle consiste à assembler le corps du tamis, l'élément de séparation et le battant par un système d'agrafes, de grenouillères ou de sauterelles, tout en laissant l'élément de séparation amovible par rapport au corps et au battant. La tension de l'élément de séparation est réalisée avant son imbrication avec le corps et le battant, selon un procédé connu. Le système d'attache du corps et du battant 25 permet de maintenir en place l'élément de séparation.  It consists in assembling the screen body, the separating element and the leaf by a system of staples, latches or locusts, while leaving the separating element removable with respect to the body and the leaf. The tension of the separating element is carried out before its nesting with the body and the wing, according to a known method. The system for attaching the body and the leaf 25 keeps the separating element in place.

L'indépendance de ces 3 éléments permet un gain important de temps et d'argent dans la mesure o l'élément de séparation doit être changé plus souvent en raison d'une usure ou d'une détérioration plus rapides que l'usure de la monture.  The independence of these 3 elements allows a significant saving of time and money since the separating element must be changed more often due to wear or deterioration faster than the wear of the mount.

Ceci permet également un nettoyage plus facile de la surface filtrante. L'invention 30 permet également de changer les surfaces de filtration tout en gardant la même monture.  This also allows easier cleaning of the filter surface. The invention also makes it possible to change the filtration surfaces while keeping the same frame.

Plus particulièrement l'invention consiste en un tamis du type composé d'une monture maintenant un élément de séparation comportant un média filtrant tendu sur un châssis, caractérisé en ce que: - la monture est composée d'un corps et d'un battant emboîtables et verrouillés, après mise en place, au moyen d'attaches élastiques, et comporte au niveau du plan d'emboîtement des moyens de positionnement de l'élément filtrant, - ledit élément de séparation étant pré-tendu et séparable du corps et du battant;les moyens de tension de l'élément filtrant étant associés à l'élément de séparation et non à la monture.  More particularly the invention consists of a sieve of the type composed of a frame holding a separating element comprising a filtering medium stretched over a frame, characterized in that: - the frame is composed of a nestable body and a wing and locked, after installation, by means of elastic fasteners, and comprises, at the level of the nesting plane, means for positioning the filter element, - said separation element being pre-stretched and separable from the body and the leaf the means for tensioning the filter element being associated with the separation element and not with the frame.

On comprendra mieux l'invention en se reportant aux figures: - la figure 1 montre la mise en place des différents éléments du tamis avant serrage final des attaches, - la figure 2 montre le tamis assemblé après serrage des attaches, - les figures 3 et 4 sont de vues en coupe partielle du corps assemblé montrant le positionnement relatif des éléments et leur imbrication, selon deux variantes de réalisation.  The invention will be better understood by referring to the figures: - Figure 1 shows the installation of the different elements of the screen before final tightening of the fasteners, - Figure 2 shows the assembled screen after tightening of the fasteners, - Figures 3 and 4 are views in partial section of the assembled body showing the relative positioning of the elements and their nesting, according to two alternative embodiments.

Selon l'invention, l'élément de séparation (1) est fabriqué à part et tendu dès l'origine comme décrit dans la demande de brevet FR 03 046 02 de la 15 demanderesse. Selon cette technique les moyens de tension du média filtrant sont associés au cadre de l'élément de séparation.  According to the invention, the separating element (1) is produced separately and stretched from the start as described in patent application FR 03 046 02 by the applicant. According to this technique, the means of tensioning the filtering medium are associated with the frame of the separation element.

On n'a donc à se préoccuper que de l'assemblage dudit élément de séparation (1) sur sa monture.  We therefore only have to be concerned with the assembly of said separation element (1) on its mount.

Selon l'invention cet assemblage est réalisé grâce à une monture en deux 20 parties séparables ou verrouillables de façon à laisser l'élément de séparation amovible, et comporte des moyens pour positionner ledit élément de séparation avec précision.  According to the invention, this assembly is carried out by means of a frame in two separable or lockable parts so as to leave the removable separation element, and includes means for positioning said separation element with precision.

Ladite monture est composée d'un corps (2) et d'un battant (3) emboîtables et verrouillés, après mise en place, au moyen d'attaches élastiques (4), par exemple 25 des agrafes, grenouillères ou autres.  Said frame is composed of a body (2) and a leaf (3) which can be fitted together and locked, after installation, by means of elastic fasteners (4), for example staples, latches or the like.

La bordure inférieure du corps est arrondie vers l'intérieur de façon à former une aile (5) d'appui sur l'élément de séparation (1) cette aile pouvant être continue ou discontinue.  The lower edge of the body is rounded inwards so as to form a wing (5) bearing on the separating element (1), this wing possibly being continuous or discontinuous.

La bordure supérieure du battant est conformée de façon à présenter un 30 épaulement plan (6) périphérique sur lequel repose l'élément de séparation, ledit épaulement étant prolongé vers le haut par une collerette (7) entourant le corps (2) et facilitant la mise en place de l'élément de séparation et du corps et sur laquelle sont fixées les attaches.  The upper edge of the leaf is shaped so as to present a plane peripheral shoulder (6) on which the separating element rests, said shoulder being extended upwards by a flange (7) surrounding the body (2) and facilitating the installation of the separating element and of the body and on which the fasteners are fixed.

Le battant peut être selon les variantes de réalisation réalisé en une partie 35 (figure 3) ou deux parties (figure 4).  The leaf can be, according to the variant embodiments, made in one part 35 (FIG. 3) or two parts (FIG. 4).

Préférentiellement mais non limitativement les attaches élastiques sont des agrafes dont les tendeurs, ainsi que les ressorts tendeurs sont fixés sur le corps, tandis que le battant est muni de crochets destinés à recevoir les ressorts tendeurs.  Preferably but not limited to the elastic fasteners are staples whose tensioners, as well as the tensioning springs are fixed to the body, while the leaf is provided with hooks intended to receive the tensioning springs.

Après verrouillage des attaches, l'élément de séparation (1) est bloqué entre 5 l'épaulement (6) du battant et le dessous de l'aile (5) du corps comme le montrent les figures 3 et 4.  After locking the fasteners, the separating element (1) is locked between the shoulder (6) of the leaf and the underside of the wing (5) of the body as shown in FIGS. 3 and 4.

Les avantages de l'invention sont multiples: - à l'utilisation, l'élément de séparation s'use, se détériore, se pollue ou se bouche. On peut alors simplement et facilement le changer et conserver la 10 monture qui elle, s'use ou se détériore beaucoup moins, - on ne change que l'élément de séparation, d'o un gain d'argent, - les expéditions d'éléments de séparation seuls sont plus faciles, moins volumineuses et moins coûteuses, - un tamis est un instrument de précision. La qualité est garantie. Il doit donc 15 être vérifié périodiquement. On peut le faire facilement si la surface filtrante est démontée tout en gardant sa tension, ce qui n'est pas possible avec le brevet FR 2 313 139, - le nettoyage de la surface filtrante seule est aisé, - I'utilisateur peut posséder quelques montures et un nombre plus important 20 de différentes surfaces filtrantes interchangeables, d'o un gain d'argent et de place.  The advantages of the invention are manifold: - in use, the separating element wears out, deteriorates, becomes polluted or becomes clogged. We can then simply and easily change it and keep the frame which it, wears or deteriorates much less, - we only change the separating element, hence a gain of money, - shipments of separation elements alone are easier, less bulky and less expensive, - a sieve is a precision instrument. The quality is guaranteed. It must therefore be checked periodically. It can be easily done if the filtering surface is removed while keeping its tension, which is not possible with patent FR 2 313 139, - cleaning the filtering surface alone is easy, - the user can have a few mounts and a larger number of different interchangeable filter surfaces, saving money and space.

Claims (4)

REVENDICATIONS 1. Tamis du type composé d'une monture maintenant un élément de 5 séparation(l) comportant un média filtrant tendu sur un châssis, caractérisé en ce que: - la monture est composée d'un corps (2) et d'un battant (3) emboîtables et verrouillés, après mise en place, au moyen d'attaches élastiques (4), et comporte au niveau du plan d'emboîtement des 10 moyens de positionnement de l'élément filtrant., - ledit élément de séparation étant pré-tendu et séparable du corps et du battant; les moyens de tension de l'élément filtrant étant associés à l'élément de séparation (1) et non à la monture.  1. Sieve of the type composed of a frame holding a separating element (l) comprising a filtering medium stretched over a frame, characterized in that: - the frame is composed of a body (2) and a leaf (3) nestable and locked, after installation, by means of elastic fasteners (4), and comprises, at the level of the nesting plane, means for positioning the filter element., - said separation element being pre - stretched and separable from the body and the leaf; the tensioning means of the filter element being associated with the separation element (1) and not with the frame. 2. Tamis selon la revendication 1, caractérisé en ce que la bordure 15 inférieure du corps est arrondie vers l'intérieur de façon à former une aile (5) d'appui sur l'élément de séparation (1) cette aile pouvant être continue ou discontinue, et en ce que la bordure supérieure du battant est conformée de façon à présenter un épaulement plan (6) périphérique sur lequel repose l'élément de séparation, ledit épaulement étant 20 prolongé vers le haut par une collerette (7).  2. Screen according to claim 1, characterized in that the lower edge of the body is rounded inwards so as to form a wing (5) bearing on the separating element (1), this wing possibly being continuous or discontinuous, and in that the upper edge of the leaf is shaped so as to present a peripheral plane shoulder (6) on which the separation element rests, said shoulder being extended upwards by a flange (7). 3. Tamis selon l'une des revendications là 2, caractérisé en ce que les attaches élastiques sont des agrafes dont les tendeurs, ainsi que les ressorts tendeurs sont fixés sur le corps, tandis que le battant est muni de crochets destinés à recevoir les ressorts tendeurs.  3. Screen according to one of claims 2 there, characterized in that the elastic fasteners are staples whose tensioners, as well as the tensioning springs are fixed on the body, while the leaf is provided with hooks intended to receive the springs turnbuckles. 4. Tamis selon l'une des revendications 1 à 3 caractérisé en ce que le battant est réalisé en deux parties.  4. Screen according to one of claims 1 to 3 characterized in that the leaf is made in two parts.
FR0307249A 2003-06-16 2003-06-16 CONTROL SIEVE WITH INTERCHANGEABLE SEPARATION ELEMENT. Expired - Fee Related FR2855989B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0307249A FR2855989B1 (en) 2003-06-16 2003-06-16 CONTROL SIEVE WITH INTERCHANGEABLE SEPARATION ELEMENT.

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Application Number Priority Date Filing Date Title
FR0307249A FR2855989B1 (en) 2003-06-16 2003-06-16 CONTROL SIEVE WITH INTERCHANGEABLE SEPARATION ELEMENT.

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FR2855989A1 true FR2855989A1 (en) 2004-12-17
FR2855989B1 FR2855989B1 (en) 2006-11-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114260177A (en) * 2021-12-23 2022-04-01 江苏腾信食品科技有限公司 Food additive screening device capable of sorting granularity and method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2081099A1 (en) * 1970-03-05 1971-12-03 Langrade Rene Screening riddle - of non-welded construction eliminates screen distortion and allows interchangeable screens
FR2313139A1 (en) * 1975-01-24 1976-12-31 Borie Bernard SIEVE
GB2059807A (en) * 1979-09-25 1981-04-29 Russel Finex Screen assembly locating ring for a circular sieving machine
EP0419033A1 (en) * 1989-09-19 1991-03-27 William Boulton Vibro Energy Limited Improvements relating to vibratory sifters
EP0447618A2 (en) * 1990-03-23 1991-09-25 Lao Soung Machinery Co., Ltd. Structure of vibro separator
FR2729872A1 (en) * 1995-01-30 1996-08-02 Gantois Ets Assembly of control sieve for granulometric analysis

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2081099A1 (en) * 1970-03-05 1971-12-03 Langrade Rene Screening riddle - of non-welded construction eliminates screen distortion and allows interchangeable screens
FR2313139A1 (en) * 1975-01-24 1976-12-31 Borie Bernard SIEVE
GB2059807A (en) * 1979-09-25 1981-04-29 Russel Finex Screen assembly locating ring for a circular sieving machine
EP0419033A1 (en) * 1989-09-19 1991-03-27 William Boulton Vibro Energy Limited Improvements relating to vibratory sifters
EP0447618A2 (en) * 1990-03-23 1991-09-25 Lao Soung Machinery Co., Ltd. Structure of vibro separator
FR2729872A1 (en) * 1995-01-30 1996-08-02 Gantois Ets Assembly of control sieve for granulometric analysis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114260177A (en) * 2021-12-23 2022-04-01 江苏腾信食品科技有限公司 Food additive screening device capable of sorting granularity and method thereof

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