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WO1997005962A1 - Device for delivering an adjustable amount of particles - Google Patents

Device for delivering an adjustable amount of particles Download PDF

Info

Publication number
WO1997005962A1
WO1997005962A1 PCT/SE1996/001001 SE9601001W WO9705962A1 WO 1997005962 A1 WO1997005962 A1 WO 1997005962A1 SE 9601001 W SE9601001 W SE 9601001W WO 9705962 A1 WO9705962 A1 WO 9705962A1
Authority
WO
WIPO (PCT)
Prior art keywords
perforated part
container
particles
perforated
rotating part
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.)
Ceased
Application number
PCT/SE1996/001001
Other languages
French (fr)
Inventor
Kjell K. Alm
Gunnar Forsberg
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.)
SEALCOAT 1 AB
Sealflock AB
Original Assignee
SEALCOAT 1 AB
Sealflock AB
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 SEALCOAT 1 AB, Sealflock AB filed Critical SEALCOAT 1 AB
Priority to AU67118/96A priority Critical patent/AU6711896A/en
Publication of WO1997005962A1 publication Critical patent/WO1997005962A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/144—Arrangements for supplying particulate material the means for supplying particulate material comprising moving mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/144—Arrangements for supplying particulate material the means for supplying particulate material comprising moving mechanical means
    • B05B7/145—Arrangements for supplying particulate material the means for supplying particulate material comprising moving mechanical means specially adapted for short fibres or chips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/48—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems
    • B65G65/4809—Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems rotating about a substantially vertical axis

Definitions

  • the present invention is solved the problem to produce an adjustable amount of particles in a flow of gas, so that these easily can be transported by the gas flow through a tube or another channel from a container to an orifice, at which for example an device for application can be arranged.
  • the invention is intended for particles in shape of short fibres of synthetic material, like for example polyamide with a length of up to five millimeters, but the invention can also be used for example for particles that form a powder. Owing to that the amount of fibres or other particles in an easy way can be adjusted, it also makes it possible to accurately adjust the density of a layer that is applied, an even layer can be made, and unnecessary material waste can be avoided.
  • a device for delivering an amount of fibre or powder from a container that is formed with a perforated part at the container's bottom, mainly in the shape of a frustrum of a cone, that a rotating part i ⁇ arranged inside the perforated part, which rotating part carries projections in the shape of bristle or another material that carries a suitable amount of fibres or other particles from the container and over the holes in the perforated part, and that a flow of air or another gas sweeps around the perforated part and brings about the fibres or other particles away from the container.
  • the inner rotating part with the projections has preferably the same outer contour as the inner contour of the perforated part.
  • Figure 1 schematically illustrates the construction of a device according to the invention, mainly in cross- section
  • Figure 2 illustrates enlarged a portion of the device according to Figure 1, with its perforated and rotating parts
  • Figure 3 illustrates a partial view from above according to A-A in Figure 1.
  • An embodiment of a device according to the invention in accordance with the figures consists of an essentially cylinder shaped container 1 with a lid 12 and a bottom that is made of a somewhat funnel shaped part 11 that in the center continues into a perforated part 3.
  • the perforated part 3 is in this embodiment shaped as a truncated cone with a smaller cone angle than the funnel shaped part 11, these can also be of the same cone angle.
  • the main part of the surface of the perforated part is perforated with holes 21.
  • the holes 21 are on the whole circular, but can alternatively be oblong, square, or of other shapes.
  • the rotating part 4 is provided with a spiral shaped projection 8 that reaches out from its conical surface towards the perforated part.
  • the projection 8 usually reaches out so far that its end surface touches or almost touches the inner surface of the perforated part. This can be adjusted by that the position of the rotating part is vertically adjustable, which can be done with a nut (not illustrated) on the spindle 5 or in another way.
  • the spindle 5 transmits a rotating driving movement from a motor 6 via a gearing 9 placed under the supplying section 2 to the rotating part 4.
  • the spindle 5 also reaches a bit up in the container 1 and a pair of wings 7 are arranged on the spindle 5, at which the wings 7 are angled so that they when rotating strive for lifting the contents of the container 1 so that it will not be too packed at the supplying section 2.
  • One or more guiding elements 10 are arranged firmly mounted at the bottom of the container at the orifice of the supplying section 2, whereby the material in the container is prevented from rotating with the rotating part but is brushed down into the supplying section by the top part of the projection 8.
  • a fan 18 with a fan motor 17 is arranged with a suction channel 16 and a blowing side with a delivering channel 19 in shape of a tube or alike.
  • the suction channel 16 is connected to a space 13 that surrounds and forms a crizode around the perforated part 3.
  • air or another gas is sucked via an inlet channel 14, in which an adjustable valve 15 is arranged.
  • the gas flow, that from the inlet channel 14 sweeps over and passes the perforated part 3, is controlled by the adjustable valve 15.
  • the degree of low pressure is controlled in the space 13 that influences the gas flow through the holes 21 in the perforated part 3 from the container 1, the lid of which allows an inflow of gas.
  • the mixture 20 of particles or fibres and gas is emitted through the delivering channel 19 to an applying device or another device that can be used with the mixture.
  • the invention has been specially developed for synthetic fibres that are to be applied to fibre flock.
  • the fibres are electrically charged in the applying device or at the transportation to the applying device and an evenly flocked surface can be achieved on different products or parts of products.
  • the material of application can be of fibres of for example Epoxy, Polyamide, Polyester and PVC.
  • the distance between the rotating part and the perforated part can also be changed.
  • the perforated part can preferably be replaceable to parts of different perforation, the rotating part can be replaceable to such with different types of projections and projections placed and grouped in different ways.
  • the wings 7 and the guiding elements 10 can be adjustable and replaceable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Catching Or Destruction (AREA)

Abstract

A device to make an adjustable amount of particles in a gas flow so that these can easily be transported by the gas flow through a tube or another channel (19) from a container (1) to an orifice, at which for example an applying device can be arranged. The device is primarily aimed for particles in the shape of short fibres of synthetic material, such as for example polyamide with a length of less than five millimetres, but can be used for example for particles that form a powder. By that the amount of fibres or other particles in an easy way can be adjusted, an exact adjustment of the density of a layer that is applied can be done, at which an even layer is made and unnecessary material waste is avoided. The most important characteristic of the device is a perforated part (3) in which a rotating part (4) is arranged so that it reaches towards the perforated part and that a gas flow is arranged to sweep over or around the perforated part (3) so that it leads away the particles, that from the container is moved through the perforated part.

Description

DEVICE FOR DELIVERING AN ADJUSTABLE AMOUNT OF PARΗCLES
By the present invention is solved the problem to produce an adjustable amount of particles in a flow of gas, so that these easily can be transported by the gas flow through a tube or another channel from a container to an orifice, at which for example an device for application can be arranged. Primarily, the invention is intended for particles in shape of short fibres of synthetic material, like for example polyamide with a length of up to five millimeters, but the invention can also be used for example for particles that form a powder. Owing to that the amount of fibres or other particles in an easy way can be adjusted, it also makes it possible to accurately adjust the density of a layer that is applied, an even layer can be made, and unnecessary material waste can be avoided.
According to the invention, the problem is solved by a device for delivering an amount of fibre or powder from a container that is formed with a perforated part at the container's bottom, mainly in the shape of a frustrum of a cone, that a rotating part iε arranged inside the perforated part, which rotating part carries projections in the shape of bristle or another material that carries a suitable amount of fibres or other particles from the container and over the holes in the perforated part, and that a flow of air or another gas sweeps around the perforated part and brings about the fibres or other particles away from the container. The inner rotating part with the projections has preferably the same outer contour as the inner contour of the perforated part.
Further characteristics of the present invention are described in the following claims. The invention is now to be more closely described with reference to the drawing, in which
Figure 1 schematically illustrates the construction of a device according to the invention, mainly in cross- section, Figure 2 illustrates enlarged a portion of the device according to Figure 1, with its perforated and rotating parts, and Figure 3 illustrates a partial view from above according to A-A in Figure 1.
An embodiment of a device according to the invention in accordance with the figures consists of an essentially cylinder shaped container 1 with a lid 12 and a bottom that is made of a somewhat funnel shaped part 11 that in the center continues into a perforated part 3. The perforated part 3 is in this embodiment shaped as a truncated cone with a smaller cone angle than the funnel shaped part 11, these can also be of the same cone angle.
As is closer described in Figure 2, which enlarged illustrates the supplying section 2, consisting of the rotating part 4 and the perforated part 3, with one half of the perforated part broken up, the main part of the surface of the perforated part is perforated with holes 21. In the embodiment the holes 21 are on the whole circular, but can alternatively be oblong, square, or of other shapes. The rotating part 4 is provided with a spiral shaped projection 8 that reaches out from its conical surface towards the perforated part. The projection 8 usually reaches out so far that its end surface touches or almost touches the inner surface of the perforated part. This can be adjusted by that the position of the rotating part is vertically adjustable, which can be done with a nut (not illustrated) on the spindle 5 or in another way. By that the projection preferably is carried out of dense bristle or another indulgent material the degree of bearing on can also be adjusted. The spindle 5 transmits a rotating driving movement from a motor 6 via a gearing 9 placed under the supplying section 2 to the rotating part 4. The spindle 5 also reaches a bit up in the container 1 and a pair of wings 7 are arranged on the spindle 5, at which the wings 7 are angled so that they when rotating strive for lifting the contents of the container 1 so that it will not be too packed at the supplying section 2. One or more guiding elements 10 are arranged firmly mounted at the bottom of the container at the orifice of the supplying section 2, whereby the material in the container is prevented from rotating with the rotating part but is brushed down into the supplying section by the top part of the projection 8.
A fan 18 with a fan motor 17 is arranged with a suction channel 16 and a blowing side with a delivering channel 19 in shape of a tube or alike. The suction channel 16 is connected to a space 13 that surrounds and forms a chambre around the perforated part 3. To the chambre 13 air or another gas is sucked via an inlet channel 14, in which an adjustable valve 15 is arranged. The gas flow, that from the inlet channel 14 sweeps over and passes the perforated part 3, is controlled by the adjustable valve 15. Also, the degree of low pressure is controlled in the space 13 that influences the gas flow through the holes 21 in the perforated part 3 from the container 1, the lid of which allows an inflow of gas. The mixture 20 of particles or fibres and gas is emitted through the delivering channel 19 to an applying device or another device that can be used with the mixture.
The invention has been specially developed for synthetic fibres that are to be applied to fibre flock. The fibres are electrically charged in the applying device or at the transportation to the applying device and an evenly flocked surface can be achieved on different products or parts of products. The material of application can be of fibres of for example Epoxy, Polyamide, Polyester and PVC. By the design of the embodiment according to the present invention the flow of fibres or other particles can exactly be controlled by different adjustment possibilities. By adjusting the velocity of the fan motor 17 and the opening of the valve 15 both the velocity and the measure of the air flow at the perforated part can be controlled. Besides adjusting of the velocities of the fan motor 17 and the motor 6 for driving of the rotating part, and adjustment of the valve 15, the distance between the rotating part and the perforated part can also be changed. Moreover, the perforated part can preferably be replaceable to parts of different perforation, the rotating part can be replaceable to such with different types of projections and projections placed and grouped in different ways. The wings 7 and the guiding elements 10 can be adjustable and replaceable.
The invention is not limited to the above mentioned embodiments but can be varied in many ways within the limits of the claims.

Claims

1. A device for delivering an adjustable amount of fibres or other particles from a container, characterized by that at the bottom (11) of the container (1) is arranged a perforated part (3), that a rotating part (4) is arranged so that it reaches towards the perforated part (3) with ends of projections (8), at which the projections (8) are grouped or arranged in a way that they, by rotation, strive to transmit the fibres or the particles from the container (1) , over and towards the perforated part (3) , and that a flow of air or another gas is arranged to sweep over or around the perforated part (3) so that it, to a delivering channel (19), leads the fibres or the particles away, that are delivered from the container (1) through the perforated part (3).
2. The device according to claim 1, characterized by that the perforated part (3) iε esεentially conical or εhaped aε a fruεtrum of a cone.
3. The device according to claim 1, characterized by that the projectionε (8) on the rotating part (4) are made of briεtle and εpirally arranged and that the rotating part (4) iε mainly of the εame shape as the perforated part (3) .
4. The device according to claim 1, characterized by that the distance between the rotating part (4) and the perforated part (3) can be adjusted.
5. The device according to claim 1, characterized by that the velocity of rotation of the rotating part (4) can be varied.
6. The device according to claim 1, characterized by that the flow of air or another gas is caused by a fan (18), the sucking side of which is connected to a space (13) around the perforated part (3) .
7. The device according to claim 6, characterized by that air or another gas is supplied to the space (13) around the perforated part (3) from the surroundings by an adjustable valve (15) and from the container (1) through the perforated part (3).
8. The device according to claim 7, characterized by that the velocity and the amount of air or the other gas are controlled by that the velocity of the rotation of the fan (18) can be varied and the adjustable valve (15) can be changed.
9. The device according to claim 1, characterized by that organs are arranged in the container in εhape of wings (7) rotating with the rotating part (4) are angled so that they by the rotation strive for lifting the contents in order to prevent the contentε from being too packed.
10. The device according to claim 1, characterized by that one or more guiding elementε (10) are arranged firmly mounted at the bottom of the container (1) at the rotating part (4) .
PCT/SE1996/001001 1995-08-09 1996-08-09 Device for delivering an adjustable amount of particles Ceased WO1997005962A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67118/96A AU6711896A (en) 1995-08-09 1996-08-09 Device for delivering an adjustable amount of particles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9502786A SE9502786L (en) 1995-08-09 1995-08-09 Method and apparatus for providing a controllable amount of particles in a gas stream
SE9502786-8 1995-08-09

Publications (1)

Publication Number Publication Date
WO1997005962A1 true WO1997005962A1 (en) 1997-02-20

Family

ID=20399142

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/001001 Ceased WO1997005962A1 (en) 1995-08-09 1996-08-09 Device for delivering an adjustable amount of particles

Country Status (3)

Country Link
AU (1) AU6711896A (en)
SE (1) SE9502786L (en)
WO (1) WO1997005962A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2014372A1 (en) * 2007-06-08 2009-01-14 Mettler-Toledo AG Metering device for material in powder or paste form
ITMI20110190A1 (en) * 2011-02-09 2012-08-10 Salce S R L DUST DISPENSER AND APPLIANCE FOR THE PREPARATION OF MIXTURES AND SOLUTIONS

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665342A1 (en) * 1994-01-28 1995-08-02 Josef Gatt Method of and device for introducing granular or woolly insulating materials on building sites

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0665342A1 (en) * 1994-01-28 1995-08-02 Josef Gatt Method of and device for introducing granular or woolly insulating materials on building sites

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2014372A1 (en) * 2007-06-08 2009-01-14 Mettler-Toledo AG Metering device for material in powder or paste form
US8267279B2 (en) 2007-06-08 2012-09-18 Mettler-Toledo Ag Device for dispensing dosages of substances in powder- or paste form
CN101319733B (en) * 2007-06-08 2013-03-06 梅特勒-托利多公开股份有限公司 Metering device for material in powder or paste form
ITMI20110190A1 (en) * 2011-02-09 2012-08-10 Salce S R L DUST DISPENSER AND APPLIANCE FOR THE PREPARATION OF MIXTURES AND SOLUTIONS

Also Published As

Publication number Publication date
SE504214C2 (en) 1996-12-09
SE9502786D0 (en) 1995-08-09
SE9502786L (en) 1996-12-09
AU6711896A (en) 1997-03-05

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