Note: Descriptions are shown in the official language in which they were submitted.
CA 02065525 1999-11-18
DEVICE FOR METERING POWDER, GRAINED OR MICROPEARL DYEING
MATERIALS
DESCRIPTION
This invention relates to a device for metering
powder, granulated or micropearl dyeing materials, especially
for the textile, 1=arming and paper industry.
A devicES to collect and distribute powder material is
known from the document DE-U-9 014 270. This, in the version
illustrated in Figures 1-3, includes a plate with several holes
through which the material passes by means of a collecting
device with a pa7_let rotating round a vertical shaft, which is
moved by means of a relative driving element. A plate beneath
the above mentioned, perforated plate allows the material sifted
in this way to be collected, and a scythe-shaped blade, which is
operated by means of said vertical shaft, conveys the collected
material into a central outgoing duct.
But this device does not provide for the control of
the size of the grains of the sifted material and, furthermore,
it does not allow the quick adjustment of the flow rate of the
treated material; this
1
CA 02065525 1999-04-08
highly reduced the device's elasticity degree and limits its
employment to the applications for which it is not necessary
to quickly change the quantity of the worked material, for
example the transfer of material from a silo to another or its
package. From the same document, a device to collect the
granulated material is also known, which, in the version
illustrated in Figures 4-6, is provided with several plane
elements, which are moved horizontally and alternately in the
two directions, and which convey the material to be treated
into the relative diagonal slits or into relative holes on a
plate. For the control of the size of the grains of the
worked material, a second perforated plate is positioned below
the first one in such a way that the holes or the slits of the
two plates correspond either exactly or only partially.
But this device also can not guarantee the necessary
degree of elasticity for those applications which continuously
require quick changes of the flow rate of the material
outgoing from the device.
The main aim of this invention is to elimate the
above mentioned disadvantages.
According to the invention, there is provided a
device for metering powder, granulated or micropearl material,
especially dyeing material, and including a container for
collecting the dyeing material to be treated, supplied by a
store through an input tube; a sieve mounted fixed on the base
of the container with a scraper above rotating by means of an
electric motor with shaft for the compaction and the ejection
of the dyeing material; a compass-type shutter, mounted below
- 2 -
24838-69
CA 02065525 1999-04-08
the sieve for metering the dyeing material outgoing from the
container which is characterized by the fact that the said
container is provided with an upper chamber connected to it by
means of a central hopper with vertical axis and connected to
an external aspirator by means of a tube provided with a
filter; by the fact that the said sieve is of the mesh type
and that the said scraper rotates with adjustable speed; and
by the fact that the device is provided with: a precision
balance for weighing the dyeing material going through the
port of the shutter; an electronic computer for checking and
controlling the rotation speed of the scraper, the weighing
value of the balance and at least one of the opening and
closing of the shutter.
The advantages which result from the invention
essentially consist in the fact that is possible to adjust the
quantity of the worked dyeing material continuously, quickly
and with high precision, even if in very fine powder form and
with weight variation from a thousandth to a hundredth of a
- 3 -
24838-69
gram; and that it is possible to assure a high
degree of reliability even after a long working
period.
These and other advantages and characteristics of
the invention will be better understood by any
skilled person in this field thanks to the
following description and the accompanying drawing,
given as a practical example of the invention, but
not to be considered in a restrictive sense, in
which the only figure is the longitudinal section
view of a device according to the invention.
Reduced to its essential structure and referring to
I the Figure of the accompanying drawing, a device
for metering the powder, granulated or micropearl
dyeing material includes:
- a container (7.) for collecting the dyeing
material to be treated, which is supplied from a
store through an input tube (8);
- a mesh-sieve (5) mounted fixed at the base of the
container (1.) with an upper scraper (2) rotating by
means of an electric motor (4) with shaft (3) for .
the compaction and the ejection of the dyeing
material;
- a compass-type shutter (6), mounted below the
sieve (5) for metering the dyeing material outgoing
4
from the container (1.);
- a precision balance (20) for weighing the dyeing
material going through the port of the shutter (6);
- an electronic computer (30) for checking and
controlling the rotation speed of the scraper (2),
the opening of the shutter (6) and the weighing
value of the balance (20).
More particularly, the said collecting device is
provided with a upper chamber (9) connected to it
by means of a central hopper (1.0) with vertical
axis and further connected to an external aspirator
(which is not represented in the drawing), by means
of a tube (7) provided with a filter (1~.), in such
a way to generate a decompression in the container
(~.) and to favour the separation and the fall of
the particles which constitute the dyeing material.
Another advantage, according to the invention, is
that the said computer (30) can be programmed in
order to allow the most wide variation of the
quantity and/or of the dimensions, that is the
metering, of the particles of dyeing material
treated by the device, according to the contingent
needs of the working sections which use the dyeing
material.
The operation of the device is the following.
CA 02065525 1999-11-18
the dyeing material which has been put into the container (1)
through the input tube (8) is accurately subdivided into its
particles by the air stream created by the aspirator, then they
fall to the bottom, where the scraper (2) compresses them and
conveys them through the meshes of the sieve (5). The
adjustment of the quantity of dyeing material outgoing from the
container (1) is carried out either by means of the shutter (6),
the more or less opening of which is controlled by the balance
(20) according to the weighing that it must carry out at any one
time, or by adjusting the rotation speed of the scraper (2) in
order to compress a bigger or smaller quantity of dyeing
material through the holes of the sieve (5). The said
adjustment is controlled by the computer (30) which in turn is
informed by a suitable control program.
6
OPIC CIPO
OFPICE DE LA PROPRI~T~ CANADIAN INTELLECTUAL
INTELLECTUELLE DU CANADA PROPERTY OFFICE
http:llopic.gc.ca Ottawa-Hull K1A OC9 http:llcipo.gc.ca
Fetherstonhaugh & Co. June 9, 1999
P.O. Box 2999 N° de demande/Application No.
Station D
OTTAWA Ontario 2,065,525 GO1G11/02
Kl P 5Y6 Vome reference / Your reference:
24838-69
Titre/Title : DEVICE FOR METERING POWDER, GRAINED OR MICROPEARL
DYEING MATERIALS
D~pos~e le/Filing date : April 7, 1992
Revendications/Claims : 2
Propri~taire/Owner : TECNORAMA S.r.l.
Pages requises/Pages required: Pages 1, 6 and figure 1
La dernar>de de brevet susmentionnee a ate jugee acceptee. The above
application fot patent has been found allowable
Il footpayer la taxe finale de CENT CINQUANTE DOLLARS (150 S) ou de The final
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de la date of this notice otherwise the application will be to be abandoned
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~~~~3~~~~~1
DEVICE FOR METERING POWDER, GRAINED OR MICROPEARL
DYEING MATERIALS
DESCRIPTION
This invention relates to a device for metering
powder, granulated or micropearl dyeing materials,
especially for the textile, tanning and paper
industry.
A device to collect and distribute powder material
is known from the document DE-U-9 014 270. This, in
t.hr~ vr~rri nn i 11 ml.rni;rW i n ri pornn 1:=;1, itt~l orle,n n
plnl.r~ wl t.h nrrvr~rnl hr~lr~n I:hr~nttp,h whlc~.h I:hn mnt;r~rinl .
pntxnr~n by tnr~nnn o f n coi 1 ee L.I rrg dnv I erg wl l.it n
pallet rotating round a vertical shaft, which is
moved by means of a relative driving element. A
plate beneath the above mentioned perforated plate
allows the material sifted in this way to be
collected, and a scythe-shaped blade, which is
operated by means of said vertical shaft, conveys
the collected material into a central outgoing
' duct.
But this device does not provide for the control of
the size of the grains of the sifted material and,
furthermore, it does not allow the quick adjustment
of the flow rate of the treated material; this
7
CA 02065525 1999-04-08
highly reduced the device's elasticity degree and limits its
employment to the applications for which it is not necessary
to quickly change the quantity of the worked material, for
example the transfer of material from a silo to another or its
package. From the same document, a device to collect the
granulated material is also known, which, in the version
illustrated in Figures 4-6, is provided with several plane
elements, which are moved horizontally and alternately in the
two directions, and which convey the material to be treated
into the relative diagonal slits or into relative holes on a
plate. For the control of the size of the grains of the
worked material, a second perforated plate is positioned below
the first one in such a way that the holes or the slits of the
two plates correspond either exactly or only partially.
But this device also can not guarantee the necessary
degree of elasticity for those applications which continuously
require quick changes of the flow rate of the material
outgoing from the device.
The main aim of this invention is to elimate the
above mentioned disadvantages.
According to the invention, there is provided a
device for metering powder, granulated or micropearl material,
especially dyeing material, and including a container for
collecting the dyeing material to be treated, supplied by a
store through an input tube; a sieve mounted fixed on the base
of the container with a scraper above rotating by means of an
electric motor with shaft for the compaction and the ejection
of the dyeing material; a compass-type shutter, mounted below
- 2 -
24838-69
CA 02065525 1999-04-08
the sieve for metering the dyeing material outgoing from the
container which is characterized by the fact that the said
container is provided with an upper chamber connected to it by
means of a central hopper with vertical axis and connected to
an external aspirator by means of a tube provided with a
filter; by the fact that the said sieve is of the mesh type
and that the said scraper rotates with adjustable speed; and
by the fact that the device is provided with: a precision
balance for weighing the dyeing material going through the
port of the shutter; an electronic computer for checking and
controlling the rotation speed of the scraper, the weighing
value of the balance and at least one of the opening and
closing of the shutter.
The advantages which result from the invention
essentially consist in the fact that is possible to adjust the
quantity of the worked dyeing material continuously, quickly
and with high precision, even if in very fine powder form and
with weight variation from a thousandth to a hundredth of a
- 3 -
24838-69
gram; and that it is possible to assure a high
degree of reliability even after a long working
period.
These and other advantages and characteristics of
the invention will be better understood by any
skilled person in this field thanks to the
following description and the accompanying drawing,
given as a practical example of the invention, but
not to be considered in a restrictive sense, in
which the only figure is the longitudinal section
view of a device according to the invention.
Reduced to its essential structure and referring to
I the Figure of the accompanying drawing, a device
for metering the powder, granulated or micropearl
dyeing material includes:
- a container (7.) for collecting the dyeing
material to be treated, which is supplied from a
store through an input tube (8);
- a mesh-sieve (5) mounted fixed at the base of the
container (1.) with an upper scraper (2) rotating by
means of an electric motor (4) with shaft (3) for .
the compaction and the ejection of the dyeing
material;
- a compass-type shutter (6), mounted below the
sieve (5) for metering the dyeing material outgoing
4
from the container (1.);
- a precision balance (20) for weighing the dyeing
material going through the port of the shutter (6);
- an electronic computer (30) for checking and
controlling the rotation speed of the scraper (2),
the opening of the shutter (6) and the weighing
value of the balance (20).
More particularly, the said collecting device is
provided with a upper chamber (9) connected to it
by means of a central hopper (1.0) with vertical
axis and further connected to an external aspirator
(which is not represented in the drawing), by means
of a tube (7) provided with a filter (1~.), in such
a way to generate a decompression in the container
(~.) and to favour the separation and the fall of
the particles which constitute the dyeing material.
Another advantage, according to the invention, is
that the said computer (30) can be programmed in
order to allow the most wide variation of the
quantity and/or of the dimensions, that is the
metering, of the particles of dyeing material
treated by the device, according to the contingent
needs of the working sections which use the dyeing
material.
The operation of the device is the following.
H, ~ ~ '~ ~ ~ ;_;
the dyeing material which has been put into the
container (1) through the input tube (8) is
accurately subdlvidacJ into lts parl;leJes by I;I~e alr
stream created by the aspirator, they then fall to
the bottom, where the scraper (2) compresses them
and conveys them through the meshes of the sieve
(5). The adjustment of the quantity of dyeing
material outgoing from the container (l.) is carried
out either by means of the shutter (6), the more or
less opening of which is controlled by the balance
(20) according to the weighing that it must carry
out at any one time, or by adjusting the rotation
speed of the scraper (2) in order to compress a
bigger or smaller quantity of dyeing material
through the holes of the sieve (5). The said
ad,justement is controlled by the computer (30)
which in turn is informed by a suitable control
program.
