FR2582549A1 - Method and device for perforating thin metal sheets which can be used for the separation of a liquid-solid mixture - Google Patents

Method and device for perforating thin metal sheets which can be used for the separation of a liquid-solid mixture Download PDF

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Publication number
FR2582549A1
FR2582549A1 FR8508290A FR8508290A FR2582549A1 FR 2582549 A1 FR2582549 A1 FR 2582549A1 FR 8508290 A FR8508290 A FR 8508290A FR 8508290 A FR8508290 A FR 8508290A FR 2582549 A1 FR2582549 A1 FR 2582549A1
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France
Prior art keywords
strip
sheet
liquid
fact
toothed
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.)
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Application number
FR8508290A
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French (fr)
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PERROD GILLES
Original Assignee
PERROD GILLES
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Filing date
Publication date
Application filed by PERROD GILLES filed Critical PERROD GILLES
Priority to FR8508290A priority Critical patent/FR2582549A1/en
Publication of FR2582549A1 publication Critical patent/FR2582549A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/02—Stabbing or piercing, e.g. for making sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)

Abstract

The method consists in passing strips of thin metal sheets or foils between two knurled wheels, one grooved and the other toothed. The knurled wheels, pressed together, entrain the strip, from which a defined shaping is obtained as well as a perforation without removal of material. The object of the invention is a novel manufacturing method, with the aid of which a machine designed for this purpose makes it possible, by means of a mechanical action between two rollers (called knurled wheels) having special profiles to confer on the foil or strip of thin metal sheet the characteristics particular to its use. Execution of this method results in rapid perforation, one hundred thousand holes per minute (approximately).

Description

1 - Procédé et dispositif de perforation de tôles de faible
épaisseur pouvant être utilisées pour la séparation d'un
mélange liquide solide.1 - Method and device for perforating small sheets
thickness that can be used for the separation of a
solid liquid mixture.

Le procédé consiste à faire passer des bandes de tôles
minces ou feuilles, entre deux molettes, l'une rainée,
l'autre dentée.The method consists in passing strips of sheets
thin or sheets, between two rollers, one grooved,
the other toothed.

Les molettes en pression entraîne la bande, d'où l'on
obtient une mise en forme déterminée, ainsi qu'une prefo
ration sans enlèvement de matière, dont les particularités
seront décrites ci-dessous.The knobs under pressure drive the strip, from where
obtains a given formatting, as well as a prefo
ration without removal of material, the particularities of which
will be described below.

L'invention a pour but de mettre, un nouveau procédé de
fabrication, à l'aide duquel une machine conçue à cet
effet, permet par une action mécanique entre deux rou
leaux (dits molette) de profils spéciaux de confèrer à
la feille ou bande de tôle mince les caractéristiques
propres à son utilisation.The object of the invention is to provide a new method for
manufacturing, using which a machine designed for this
effect, allows by a mechanical action between two wheels
leaux (so-called dial) of special profiles to give
sheet or thin sheet strip characteristics
suitable for its use.

L'exécution de ce procéd6 a pour résultat, une perfora
tion rapide, cent mille trous/minute envinon. The execution of this procedure results in a perfora
fast, one hundred thousand holes / minute approx.

1 - La fabrication de la machine à conception mécanique connue, com
prend un bâti composé de deux plaques planes, de colonnes de
maintien fixant les plaques entres elles.1 - The manufacture of the machine with known mechanical design, such as
takes a frame made up of two flat plates, columns of
support fixing the plates between them.

De deux molettes situées l'une sur l'autre, avec dispositif
de règlages et un entraînement par moteur réducteur.Two rollers located one on top of the other, with device
of adjustments and a drive by reduction motor.

La molette inférieure dentée (fig.1) est constituée dans un
premier temps de rainures circulaires de hauteur h, ayant une
face perpendiculaire a, une partie supérieure plate b. Une
face oblique c et une partie inférieure plate d.The lower toothed wheel (fig. 1) consists of a
first time of circular grooves of height h, having a
perpendicular face a, a flat upper part b. A
oblique face c and a flat lower part d.

Dans un deuxième temps, la molette est rainée dans le sens
axial (fig.2) au profil d'engrenage de module m et le pas e.In a second step, the wheel is grooved in the direction
axial (fig. 2) to the gear profile of module m and the pitch e.

Dans un troisième temps, l'opération consiste à enleuer une
dent sur deux en quinconce.Thirdly, the operation consists in putting on a
tooth in two staggered.

La molette supérieure rainée (fig.3) se compose de rainures
circulaire@ de largeur l, de hauteur h' e@ de pas e',
le fonctionnement de l'ensemble est le suivant :
La face perpendiculaire de la molette dentee est mise en con
tact avec les bords de rainures de la molette rainée, ce qui
permet par entraînement rotatif, la perforation de la tôle
par cisaillement alterné.The grooved upper wheel (fig. 3) consists of grooves
circular @ of width l, of height h 'e @ of step e',
the operation of the assembly is as follows:
The perpendicular face of the toothed wheel is brought into con
tact with the grooved edges of the grooved thumbwheel, which
allows by rotary drive, the perforation of the sheet
by alternating shear.

Le cisaillement de la bande de tôle est effectué dans la par
tie longitudinale de celle-ci. on obtient ainsi une face lisse
"dite intérieure" formée d'enfoncements coniques, tronqués à
leurs bases, alternés en quinconce.The sheet metal strip is sheared in the par
longitudinal tie thereof. thus obtaining a smooth face
"interior" formed of conical recesses, truncated at
their bases, staggered alternately.

L'autre face "dite extérieure" est formée par des bossages
coniques, alternés, tronqués à leurs bases leur conférant
à chacun une ouvrture fine en forme de demi lune dont la
direction axiale suit perpendiculairement la génératrice
ou hauteur de la bande de tôle. Il n'y a pas d'enlèvement de
matière.The other "exterior" face is formed by bosses
conical, alternate, truncated at their bases giving them
to each a fine opening in the shape of a half moon whose
axial direction follows the generator perpendicularly
or height of the sheet metal strip. There is no removal of
matter.

Si l'on place la bande perforée dans sa longitude perpendi
culairement par rapport à un plan.If we place the perforated strip in its perpendicular longitude
culinary compared to a plan.

Et si l'on regarde face à la bande soit face intérieure ou
extérieure, on obtient la particularité suivante : 1 - Les ouvertures fines en demi-lune ne sont pas visibles,
puisqu'elles sont parallèles au plan et lui donne l'as
pect d'une surface pleine dont nous décrivons les avan
tages ci-dessous.And if we look in front of the strip, either inside or
exterior, we obtain the following feature: 1 - The fine half-moon openings are not visible,
since they are parallel to the plane and gives it the ace
pect of a solid surface whose avan we describe
stages below.

Le résultat obtenu sur la face intérieure et extérieure
permet à la bande finale de possèder les propriétés sui
vantes, qui sont utilisées dans la technique de filtration
des mélanges liquides solides.The result obtained on the inside and outside
allows the final strip to have the following properties
which are used in the filtration technique
solid liquid mixtures.

Dans la phase de la séprration (liquide solide), on utilise
principalement des essoreuses, centrifugeuses ou des moules
montés sur des presse.In the separation phase (solid liquid), we use
mainly wringers, centrifuges or molds
mounted on presses.

Souvent ces appareils sont équipés de prniers ou bandes
perforés fines en tôle de façon classique.Often these devices are equipped with pliers or bands
thin perforated sheet metal in a conventional manner.

Il est apparu que les meilleurs résultats peuvent seule
ment être obtenus par des filtres ou bandes de perforations
dont la direction axiale suit le génératrice du cylindre ou
cône.It appeared that the best results alone can
can be obtained by filters or perforation strips
whose axial direction follows the generator of the cylinder or
cone.

En modifiant les méthodes de perforations classiques, on
obtient en plus par notre procédé, des tôles perforées par
bossages alternés, d'une adaptation adéquate dans leur uti
lisation future.By modifying conventional perforation methods, we
by our process, we obtain sheets perforated by
alternate bosses, of adequate adaptation in their use
future reading.

Dans la pratique, cette bande de tôle perforée suivant no
tre procédé, a pour but d'ètre placée à l'intérieur d'un mou
le cylindrique à parois planes.In practice, this strip of perforated sheet metal according to No.
be process, aims to be placed inside a slack
the cylindrical with flat walls.

La bande étant placée de façon que sa face, dite extérieure
soit en contact avec celle du moule. Par notre procédé de
perforation, on remarque que les contacts paroi-moule et
bande, se font par alternance, ceci dû aux bossages perforés
il se crée ainsi des vides ou espaces.The strip being placed so that its face, called the exterior
either in contact with that of the mold. By our process of
perforation, we note that the wall-mold contacts and
band, are done alternately, this due to the perforated bosses
voids or spaces are thus created.

Dans la phase de séparation d'un mélange "liquide solide"
sous presse dans un moule conçu à cet effet, le liquide à
séparer s'écoule facilement par ces vides et l'échappement
de la matière solide est pratiquement nul, puisque les trous
en demi-lune sont perpendiculaires à la paroi intérieure
du moule. In the phase of separation of a "solid liquid" mixture
in press in a mold designed for this purpose, the liquid to
separate flows easily through these voids and the exhaust
of solid matter is practically zero, since the holes
in a half moon are perpendicular to the inner wall
of the mold.

Il en résulte aussi que la matière égouttée en contact avec la paroi dite face intérieure de la bande par son aspect lisse, permet un démoulage parfait et sans arrachement de cette matière. It also results therefrom that the drained material in contact with the wall known as the inner face of the strip by its smooth appearance, allows a perfect release and without tearing of this material.

Claims (9)

REVENDICATIONS 1) Dispositif de perforation de tôles, caractérisé par la constuction d'une machine qui comprend un bâti composé de deux plaques planes, de colonnes de maintien fixant les plaques et de deux molettes situées l'une sur l'autre, avec un dispositif de règlage.1) Sheet perforation device, characterized by the construction of a machine which comprises a frame made up of two flat plates, holding columns fixing the plates and two knurls located one on the other, with a device for setting. 2)dispositif de perforation de tôles selon la revendication 1 caractérisé en ce qu'il comprend : deux molettes, l'une dentée combinée avec l'autre rainée donnant après passage d'une bande de tôle entre celle-ci, une action de cisaillement avec formation de bossages alternés donné par la forme des molettes entraînées, d'où il en résulte une bande perforée de profil et de tous définis (Fig 5).2) sheet perforating device according to claim 1 characterized in that it comprises: two rollers, one toothed combined with the other grooved giving after passage of a strip of sheet between it, a shearing action with formation of alternating bosses given by the shape of the driven rollers, from which this results a perforated strip of profile and all defined (Fig 5). 3) Dispositif de perforation de tôles selon l'une des revendications précédentes caractérisé en ce qu'une molette dentée fig 1 comprend des rainures cinculaires de hauteur h, ayant une dace perpendicaulaire a, une dace ptate b, une daee obli que c et une face plate d, ensuite la molette est rainée dans le sens axial fig 2., au profil d'engrenage de module m et de pas e.3) sheet perforating device according to one of the preceding claims characterized in that a toothed wheel fig 1 comprises cincular grooves of height h, having a dace perpendicular a, a dace ptate b, a daee oblivion that c and a flat side d, then the wheel is creased in the axial direction fig 2., to the gear profile of module m and pitch e. La molette éest ainsi dentée et dégagée d'une dent sur deux en quinconce.The wheel is thus toothed and disengaged from one tooth in two staggered. 4) Dispositif de perfoation de tôle selon l'une des revendications précédentes caractérisé en ce qu'une molette rainée Fig 3, comprend des rainures circulaires de largeur l et de hauteur h' et de pas e4) sheet perforating device according to one of the preceding claims characterized in that a grooved thumbwheel Fig 3, comprises circular grooves of width l and height h 'and of pitch e 5) Dispositif de perforation de tôle selon l'une des revendications précédentes, caractérisé par le fait qu'en faisant varier te pan e, ta hauteur h, et ta largeur Q de chacune de4 molettes on a la possibilité de faire de nouvelles formes sans changer pour autant le principe de perforation.5) sheet metal perforating device according to one of the preceding claims, characterized in that by varying the pan e, your height h, and your width Q of each of 4 knobs it is possible to make new shapes without change the principle of perforation. 6) Procédé selon l'une des revendications précédentes, carac térisé par le fait que l'on obtien après passage de la bande de tôle, des cisaillements avec enfoncements coniques, tronqués à leurs bases, alternés en quinconce, sans enlèvement de matière, d'où il en résulte une ouverture line en demi-lune, 6) Method according to one of the preceding claims, charac terized by the fact that one obtains after passage of the sheet metal strip, shears with conical depressions, truncated at their bases, alternated in staggered rows, without removal of material, d '' which results in a half moon opening line, dont la direction axiale suit perpendiculairement la génératric whose axial direction perpendicularly follows the generatric de la bande de tôle, ce qui confère à celle-ci la propriété sheet metal strip, which gives it the property d'avoir l'aspect d'une surface pleine dans sa position perpen to have the appearance of a solid surface in its perpen position diculaire à un plan. dicular to a plan. 7) Procédé selon l'une des revendications précédentes, carac 7) Method according to one of the preceding claims, charac térisé par le fait que le résultat obtenu est un filtre en terrified by the fact that the result obtained is a filter in bande perforée en bossages alternés, d'une adaptation adé perforated strip in alternating bosses, adapted quate dans un moule conçu à cet effet. quate in a mold designed for this purpose. 8) Procédé selon l'une des revendications précédentes carac 8) Method according to one of the preceding claims charac térisé par le fait, qu'un moule conçu à cet effet, permet terrified by the fact that a mold designed for this purpose allows dans la phase de séparation d'un mélange "liquide-solide sous presse, de séparer le liquide qui s'écoule facifement in the phase of separation of a "liquid-solid mixture under press, to separate the liquid which flows easily par ces vides en demi-lune perpendic@@aire au paroi de la by these half-moon voids perpendicular @@ area to the wall of the bande, d'où un échappement pratiquement nol de la me@tiène  strip, hence a practically nol exhaust of me @ tiene solide. solid. 9) Procèdé selon l'une des revendientions précédentes, carac 9) Procedure according to one of the preceding claims, charac térisé par le fait que cette bande paréorée suivant notre dispositif, a pour but d'être placé à l'intérieur de l'os terrified by the fact that this strip, trimmed according to our device, aims to be placed inside the bone sature du moule cylindrique et d'en constituer les parois saturates the cylindrical mold and constitutes its walls filtrantes pour donner un ensemble monobloc dont la paroi  filters to give a monobloc assembly whose wall dite face "intérieure" - Fig 5, par son aspect lisse, permet said "inner" face - Fig 5, by its smooth appearance, allows un démoulage parfat et la paroi dite "extérieure" l'écoule a perfume release and the so-called "external" wall drains it ment du liquide par glissement sur les bossages perforés.  liquid by sliding on the perforated bosses.
FR8508290A 1985-05-28 1985-05-28 Method and device for perforating thin metal sheets which can be used for the separation of a liquid-solid mixture Withdrawn FR2582549A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8508290A FR2582549A1 (en) 1985-05-28 1985-05-28 Method and device for perforating thin metal sheets which can be used for the separation of a liquid-solid mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8508290A FR2582549A1 (en) 1985-05-28 1985-05-28 Method and device for perforating thin metal sheets which can be used for the separation of a liquid-solid mixture

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FR2582549A1 true FR2582549A1 (en) 1986-12-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629743A1 (en) * 1988-04-08 1989-10-13 Perrod Gilles Bossing method and perforating tool for the manufacture of filters made of sheet stainless steel or of plastic sheets, used for separating, by pressing, the whey from cheese curd, as well as the filter obtained by this method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1624543A (en) * 1924-07-26 1927-04-12 A C Paul Apparatus for expanding metal lath
US3203079A (en) * 1961-01-26 1965-08-31 Smith Method of making louvered ventilator
GB1039544A (en) * 1962-03-07 1966-08-17 Garrett Corp Improvements relating to perforating sheet metal
US3665745A (en) * 1970-05-04 1972-05-30 Robert Bion And Co Ltd Perforating apparatus and product
FR2264607A1 (en) * 1974-03-22 1975-10-17 Haironville Forges Method of forming sound insulation panels - uses rollers with perforation forming teeth
BE853385A (en) * 1977-04-07 1977-08-01 Metal Deploye Belge Sa PROTECTION CORNER FOR PLACOPLATRE PANELS AND TOOL FOR THE MANUFACTURE OF THIS CORNER
GB2054438A (en) * 1979-08-01 1981-02-18 Cominco Ltd Asymmetrical shaping of slit segments of meshes formed in deformable strip
GB2080178A (en) * 1980-07-26 1982-02-03 Covrad Ltd Apparatus for forming heat exchanger fins
GB2106001A (en) * 1981-05-18 1983-04-07 Bion And Company Limited Rober Filter element supports

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1624543A (en) * 1924-07-26 1927-04-12 A C Paul Apparatus for expanding metal lath
US3203079A (en) * 1961-01-26 1965-08-31 Smith Method of making louvered ventilator
GB1039544A (en) * 1962-03-07 1966-08-17 Garrett Corp Improvements relating to perforating sheet metal
US3665745A (en) * 1970-05-04 1972-05-30 Robert Bion And Co Ltd Perforating apparatus and product
FR2264607A1 (en) * 1974-03-22 1975-10-17 Haironville Forges Method of forming sound insulation panels - uses rollers with perforation forming teeth
BE853385A (en) * 1977-04-07 1977-08-01 Metal Deploye Belge Sa PROTECTION CORNER FOR PLACOPLATRE PANELS AND TOOL FOR THE MANUFACTURE OF THIS CORNER
GB2054438A (en) * 1979-08-01 1981-02-18 Cominco Ltd Asymmetrical shaping of slit segments of meshes formed in deformable strip
GB2080178A (en) * 1980-07-26 1982-02-03 Covrad Ltd Apparatus for forming heat exchanger fins
GB2106001A (en) * 1981-05-18 1983-04-07 Bion And Company Limited Rober Filter element supports

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629743A1 (en) * 1988-04-08 1989-10-13 Perrod Gilles Bossing method and perforating tool for the manufacture of filters made of sheet stainless steel or of plastic sheets, used for separating, by pressing, the whey from cheese curd, as well as the filter obtained by this method

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