[go: up one dir, main page]

WO2024134409A1 - Machine et procédé de traitement à la vapeur de surfaces - Google Patents

Machine et procédé de traitement à la vapeur de surfaces Download PDF

Info

Publication number
WO2024134409A1
WO2024134409A1 PCT/IB2023/062746 IB2023062746W WO2024134409A1 WO 2024134409 A1 WO2024134409 A1 WO 2024134409A1 IB 2023062746 W IB2023062746 W IB 2023062746W WO 2024134409 A1 WO2024134409 A1 WO 2024134409A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpieces
machine
steam
tank
dyeing
Prior art date
Application number
PCT/IB2023/062746
Other languages
English (en)
Inventor
Paolo Redaelli
Original Assignee
Techno Surface Sas di Bulli Elisabetta & C.
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 Techno Surface Sas di Bulli Elisabetta & C. filed Critical Techno Surface Sas di Bulli Elisabetta & C.
Publication of WO2024134409A1 publication Critical patent/WO2024134409A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0278—Arrangement or mounting of spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0483—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with gas and liquid jets intersecting in the mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
    • B24C3/26—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor
    • B24C3/28—Apparatus using nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/12—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
    • D06B5/22—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/005—Vibratory devices, e.g. for generating abrasive blasts by ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics

Definitions

  • the present invention relates to a machine for steam treatment of surfaces and a related process .
  • the present invention relates to a machine capable of treating the surface of workpieces by subj ecting them to jets of steam in order to clean them, colour them and/or carry out smoothing and roughness mitigation processes on them.
  • a first known technique is the sandblasting of workpieces, a technique that in turn can be divided into the following categories : depression dry sandblasting, pressure dry sandblasting, wet sandblasting, cryogenic sandblasting and waterjet sandblasting.
  • the Venturi principle is used to generate a depression within the cabin itself, collect abrasive from a holding hopper and feed it back to a gun or nozzle, until the reduction in size of the used granules is automatically detected as dust .
  • Metal grit cannot be used with depression sandblasting.
  • a tank In dry pressure sandblasting, on the other hand, a tank is pressurized by means of pneumatic connections and when the abrasive is recalled, activated for example by a foot pedal on the machine, the contents of a cylinder are discharged through the nozzle .
  • Both depression and pressure sandblasting techniques make use of compressed air (i . e . an upstream compressor) to blast sand (or other types of grit such as glass beads, etc. ) .
  • wet sandblasting also called wet sandblast, or improperly vapor sandblast
  • This technique which is largely similar to dry depression sandblasting, additionally uses a pump to help the mass of abrasive and water reach the gun where it is blasted onto the surface to be sandblasted with a jet of compressed air.
  • ' cryo-blasting' also known as ' Dry Ice Blasting' , which consists of projecting small pellets of ' Dry Ice ' (or carbonic ice) at a temperature of -78.5°C onto the surface to be treated at sonic or supersonic speed.
  • cryogenic blasting combined mechanical and thermal effects due to low temperatures are particularly effective in many applications and industries for environmentally friendly cleaning.
  • Carbon dioxide ice is known as ' dry' because under standard pressure conditions, carbon dioxide passes from the solid to the gaseous state by sublimation, namely without passing through the liquid state .
  • carbonic ice or dry ice refers to carbon dioxide (chemical formula: CO2 ) in a solid state, which is obtained when the temperature reaches -78.5 °C (at atmospheric pressure) . It has numerous applications, especially in the medical field and cold storage .
  • hydro et blasting which involves a dual operation: dry blasting or low-pressure atomized hydro jet blasting with mixing of water and inert .
  • the mixing of water takes place directly in the nozzle, a method that minimizes the amount of water used and therefore cleaning residues and on site costs .
  • the use of water guarantees total dust abatement, ideal for work in urban environments or where it is particularly important to reduce emissions .
  • the waterjet blasting method is versatile and can be used in restoration, but also in urban decoration, graffiti removal and industrial cleaning.
  • chilled and dehumidified compressed air pressure can be adjusted from 0.2 bar and the compressed air/inert air/spray water mixture is micrometrically regulated.
  • a vibrating sandblasting machine is known from Italian patent application No . 102019000007052.
  • WO 2005/090002 describes a method for the painting of small parts, whereby small parts are circulated in a machine in a region traversed by a jet from a paint gun.
  • the parts are moved by means of a complex inclined conveyor belt .
  • the parts are poured onto the belt, which has perforations through which air is sucked in.
  • Document CH 400 911 illustrates a classic blasting gun, in which a pressurized fluid arrives at an inlet of a gun tube and flows at very high speed. This flow of fluid through the nozzle of the gun creates a vacuum in the tube and sucks in the material to be sprayed through a side inlet . The fluid thus sucked flows into the pipe, where it undergoes increasing acceleration and is discharged into the nozzle, where it comes into contact with the fluid, which carries it and pushes it towards the outlet .
  • the purpose of the present invention is to realize a machine for surface treatment of workpieces that overcomes the problems of the prior art .
  • one purpose of the present invention is to realize a machine that allows workpieces to be dyed in a practical and economical way.
  • a machine for steam dyeing of surfaces comprising at least one process tank for holding workpieces to be processed in conjunction with vibratory finishing media, and configured to impose a rotational motion on the workpieces so that they expose their surfaces in the different directions of the space, and wherein at least one ejector comprising a first channel for inlet of pressurized steam and a second channel for inlet of a dye for the workpieces to be dyed, wherein the first channel and the second channel flow into a Venturi tube terminating in an outlet nozzle, wherein a mixture of steam and dye exits from said outlet nozzle and wherein said mixture is directed onto the workpieces for dyeing the workpieces wherein the machine further comprises an aspirator associated with air heating means and which draws air from the outside and sends hot air into the tank by means of a pipe .
  • An advantage of the invention is that it allows a series of elements to interact in such a way as to dye workpieces with significant dye savings .
  • the process tank gives the workpieces and vibratory media a rotational motion that exposes their surfaces in all directions of space, while the immersion in vibratory media protects the workpieces during their three-dimensional revolution due to the elasticity of said media, to which it must be added the use of steam as a carrier for the ink or dye .
  • the invention also relates to a process for steam dyeing the surfaces of workpieces placed in a process tank configured in circular or toroidal form, wherein the said process comprises at least the following steps :
  • a dye mixed with dry saturated steam to create a mixture to be ejected against the surfaces of the workpieces placed inside the process tank to colour the workpieces
  • said phases are preceded by a pre-treatment phase of the workpieces placed inside the process tank wherein said workpieces are treated with dry saturated steam and/or hot air and are followed by a hot water rinse phase by connection of the machine to a hot water line or by implementation of a water heating device installed on board the machine, and wherein the rinsing function can be used, depending on the programmed recipes, only with hot water or in combination with dry saturated steam and/or hot air.
  • FIG. 1 is a side view of the machine according to an embodiment of the invention.
  • FIG. 2 is a further side view of the machine according to an embodiment of the invention.
  • FIG. 3 is an axonometric view of the machine according to an embodiment of the invention.
  • FIG. 4 is a top view of an ejector belonging to the machine of the invention.
  • FIG. 5 is a cross-sectional view along the A-A plane of the figure 4 e ector.
  • dyeing is a process in which the colour penetrates the material, unlike painting, which involves applying a coating, such as paint, to the surface of a material .
  • the machine 10 is mounted on a plinth 12 and has a process tank 50, mounted on springs 55, which process tank 50 is made to vibrate by a motor (not shown for simplicity) .
  • vibro finishing media or other fine particles may also be present inside the tank 50 to exert a finishing action on the workpieces in conjunction with the vibration of tank 50.
  • Machine 10 has a first in-line vacuum generator or ejector 20 for steam dyeing and a second ejector 30 to carry out a possible preheating phase for workpieces to be processed with steam only.
  • the second ejector 30 can also be used to treat workpieces with steam and abrasive, particularly useful for polymer parts where heat contributes to reducing surface mechanical strength.
  • This second ejector 30 can also be used to clean tank 50 and vibro finishing media at the end of the cycle .
  • Figure 4 is a top view of an ejector 20 belonging to the machine of the invention and Figure 5 is a sectional view along the A-A plane of the ejector 20 in Figure 4.
  • the ejector 20 provides a first channel 22 for the inlet of pressurized steam and a second channel 24 for the inlet of a working fluid for workpieces .
  • the first channel 22 and the second channel 24 both flow into a venturi 26 that terminates in an outlet nozzle 28.
  • the working fluid is a colouring liquid and, as further illustrated below, the machine of the invention is used to colour workpieces .
  • the steam used is preferably dry saturated steam at relatively high pressures but low flow rates, e. g. 1.25 1/h per KW used.
  • the treated product can be : a) Dyeing liquid for dyeing polymers, fabrics or other materials (but may also be non-liquid, so a gel or granular powders, or emulsions, or other physical states) b) Abrasive gel c) Slurry, or a combination of liquids and solid substances in granules, granular abrasives d) Liquid non-abrasive chemical substance or compound e) Non-abrasive chemical substance or compound in gel form.
  • the mixture generated by the treatment steam and the treated product is obtained.
  • Discharge takes place via the automatic, pneumatically controlled discharge valve 42 outside the machine, where a linear actuator directs the discharged effluent to three different destinations .
  • the steam dyeing of pieces can be compared to the classic process of immersion dyeing in hot water with dye in solution.
  • a classic application example, relating to a well-known hot water immersion dyeing process with dye in solution, is as follows . a. Consider a medium-small heated stainless steel tank (e .g. an ultrasonic cleaning tank) in which to immerse a workpiece at 80 °C for 2 minutes, i . e . a tank with a capacity of 30 liters; b. Consider that the percentage of dye to achieve a result is 1 to 9 - therefore 1 part of (rather expensive) dye for every 9 parts of water is needed, so 3 liters of dye in the tank with 27 liters of water. c. Once the temperature of 80 °C has been reached, the workpieces to be immersed must be allowed to soak for a time of 2 minutes, then removed, rinsed and drained.
  • a medium-small heated stainless steel tank e .g. an ultrasonic cleaning tank
  • the percentage of dye to achieve a result is 1 to 9 - therefore 1 part of (rather expensive) dye for every 9 parts of water
  • the liquid with the colour can be reused for a few times .
  • a vibration tank 50 (toroidal or circular type) is preferably used.
  • the workpieces to be processed (alone or aided by special light elastic inserts or vibro finishing media) are placed in rotation, or in any case in motion according to a rotational motion so that they expose their surfaces in the different directions of space and, as the first step of the process, are brought to a temperature of 80°C by ejector 30.
  • the inline vacuum generator 20 kicks in (while the previous ejector jet 30 cuts out) and this results in the supply of dye-added steam, by sucking the ink contained in the container 40 along a 40 ' conveyor line or tube (or via another container and optional precision pump) .
  • the dry saturated steam generated by the thermal unit 70 is conveyed to the in-line vacuum generator 20 via a 20 ' conveyor line, while the dry saturated steam 70 is conveyed to the ejector 30 via a 30 ' conveyor line .
  • the system of the invention compared to the classical one, uses 0.1 liter of dye instead of 3 liters, i . e. a ratio of about 30 times less .
  • the system of the invention offers the possibility of reducing dye consumption in a dyeing process by at least 10 times compared to conventional methods .
  • This automatic cleaning process results in an effective environment that, following a simple rinsing (by recycling, via the tank with pump 44 - or with water from the flowmeter with solenoid valve 71, or with the addition of liquid chemical compound via solenoid pump 72) , is ready to receive new articles to be coloured, with a new dye or colour.
  • the abrasive gel or slurry (water/ abrasive mixture) is fed through the peristaltic pump 73 to the ej ector 30 via the 73 ' conveyor line .
  • the water coming from the flowmeter with solenoid valve 71 is conveyed to the process tank 50 via a conveyor line 71 '
  • the liquid chemical compound sent to the process tank 50 via solenoid pump 72 is conveyed via a conveyor line 72 ' .
  • a first possibility of the invention is to use a vibrating process tank 50 mounted on springs 55, which is made to vibrate by a motor, as in Figures 1-3 .
  • the workpieces rotate three-dimensionally inside a toroidal tank and are exposed, in several passes, to the steam-activated blasting jet, via ejector 30, allowing them to be texturized and exposed on each side as they are exposed until 100% surface involvement is achieved.
  • the workpieces subjected to the steam jet are gradually involved in each side of the surface, thus determining, depending on the type of steam jet and principle that is activated in the machine :
  • the workpieces are sandblasted or cleaned/ fine-abraded, involved or treated with dry saturated steam, suitably additized with i .
  • Abrasive gel ii Slurry, or a combination of liquids and solid substances in granules, granular abrasives iii .
  • Liquid non- abrasive chemical substance or compound e .g. detergent
  • Non- abrasive chemical substance or compound in a gel e . g. deoxidant
  • the workpieces are either dyed or treated with dry saturated steam, suitably additized with dye, via ejector 20 instead of ejector 30, until the desired dyeing of the surface is achieved.
  • the step of changing the surface condition of workpieces comprises a step of steam dyeing the workpieces in which the dyeing ink is divided into two components .
  • the pigment tablet is loaded with the workpieces to be dyed in the process tank 50 and the solvent is applied by steam to the workpieces in the process tank 50 after a heating step of the surfaces of said workpieces .
  • An advantage of this solution is that it reduces the volume of flammable liquid and the risk of fire, allowing solid pigments to be stored safely.
  • a different dynamic can be used for the workpieces, i .e . one that refers to the use of a rotating tumbler instead of a circular vibro- finishing machine .
  • a further embodiment of the invention involves its use in rectangular or linear vibratory finishing machines, with which, suitably configured, similar results can be achieved.
  • a further variant of the invention provides an operating principle according to which it is possible, as an alternative to the other dynamics already described:
  • CNC controlled axis system
  • the components are either sandblasted or treated with dry saturated steam, suitably additized with: a. Abrasive gel b. Slurry, or a combination of liquids and solid substances in granules, granular abrasives c. Liquid (or gel) dye for dyeing polymers, fabrics or other materials d. Liquid non- abrasive chemical substance or compound e . Non- abrasive chemical substance or compound in gel form.
  • CNC controlled axis system
  • the components are either sandblasted or treated with dry saturated steam, suitably additized with: a. Abrasive gel b. Slurry, or a combination of liquids and solid substances in granules, granular abrasives c. Liquid (or gel) dye for dyeing polymers, fabrics or other materials d. Liquid non- abrasive chemical substance or compound e . Non- abrasive chemical substance or compound in gel form.
  • a further variant of the invention envisages the operating principle according to which it is possible and/or preferable as an alternative to the other described dynamics :
  • the components are either sandblasted or treated with dry saturated steam, suitably additized with: a. Abrasive gel b. Slurry, or a combination of liquids and solid substances in granules, granular abrasives c. Liquid (or gel) dye for dyeing polymers, fabrics or other materials d. Liquid non- abrasive chemical substance or compound e . Non- abrasive chemical substance or compound in gel form
  • the components are either sandblasted or treated with dry saturated steam, suitably additized with: a. Abrasive gel b. Slurry, or a combination of liquids and solid substances in granules, granular abrasives c. Liquid (or gel) dye for dyeing polymers, fabrics or other materials d. Liquid non- abrasive chemical substance or compound e . Non- abrasive chemical substance or compound in gel form.
  • a first example of these further processes is the lubrication of elastomers, polymers and plastics in general .
  • This process makes it possible to use the machine to apply liquid or gel chemical compounds in order to apply a lubricating layer to the surface, i .e . coating the surface with a lubricating substance (typical example :
  • Teflon Teflon
  • a further surface treatment process is waxing or paraffinizing, of natural materials such as corozo, horn, wood, this process allows the machine to apply a protective layer to the surface, i . e. coating the surface (Coating) with a waxy substance (typical example: paraffin or beeswax) .
  • nano-additives enable important properties to be achieved.
  • the surface properties of organic polymer coatings can be improved with certain nano-additives to be more hydrophobic, oil-repellent and scratch-resistant .
  • Additives or Nano-Additives contain nanoparticles created by the hydrolysis and condensation of silanes (sol-gel technology) .
  • a further aspect of the invention may include a heating phase by insufflation of hot air.
  • This can be realized, for example, by means of an extractor fan or blower 80 that draws in air from outside and sends it into tank 50, after heating, using an 80 ' pipe.
  • This function of heating by hot air insufflation, together with or separate from dry saturated steam, can contribute both to the preliminary pre-heating phase of the components (before applying a dye, lubrication or nano-coating to the surface) and to the final drying phase .
  • a morphological adaptation of the tank bottom is envisaged, aimed at having the lower level of the working tank or vibro finishing tank positioned a few millimeters above the liquid/ waste discharge filter, thus ensuring perfect drying at the end of the cycle with the expulsion/discharge of all the waste water down to the last drop.
  • a further feature is hot water rinsing - either by connecting the machine to a hot water line (where centralized for several machines) or by implementing (optional) an on-board water heating device; this rinsing function can be used, depending on the programmed recipes :
  • an additional function can be provided to apply substances of various natures and bases (aqueous or solvent or nano-technological) to the surfaces involved in the process, by means of an airbrush or painting nozzle associated with a special pump.
  • This optional accessory when required, allows the machine to be used to apply substances that, due to their nature, are not compatible with the steam venturi mode .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

La présente invention concerne une machine (10) pour le traitement à la vapeur de surfaces, ladite machine (10) comprenant au moins un réservoir de traitement (50) pour contenir des pièces à usiner, ledit réservoir (50) étant pourvu d'au moins un éjecteur comprenant un premier canal (22) pour l'entrée de vapeur sous pression et un second canal (24) pour l'entrée d'un fluide de travail pour des pièces à usiner, ledit premier canal (22) et ledit second canal (24) s'étendant dans un venturi (26) se terminant dans une buse de sortie (28), un mélange de vapeur et du fluide de travail s'écoulant à partir de ladite buse de sortie (28), et ledit mélange étant dirigé vers les pièces pour changer l'état de surface desdites pièces à usiner, et ladite machine (10) comprenant en outre un aspirateur (80) associé à des moyens de chauffage d'air et qui aspire l'air depuis l'extérieur et envoie de l'air chaud dans le réservoir (50) au moyen d'un tuyau (80').
PCT/IB2023/062746 2022-12-20 2023-12-15 Machine et procédé de traitement à la vapeur de surfaces WO2024134409A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102022000026085 2022-12-20
IT202200026085 2022-12-20

Publications (1)

Publication Number Publication Date
WO2024134409A1 true WO2024134409A1 (fr) 2024-06-27

Family

ID=85381296

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2023/062746 WO2024134409A1 (fr) 2022-12-20 2023-12-15 Machine et procédé de traitement à la vapeur de surfaces

Country Status (1)

Country Link
WO (1) WO2024134409A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH400811A (fr) * 1963-06-17 1965-10-15 Carpenter Leandre Pistolet de sablage
DE2440153A1 (de) * 1973-08-29 1975-03-06 Stork Brabant Bv Vernebelungsgeraet fuer fluessigkeit
DE3811680A1 (de) * 1987-06-05 1988-12-22 Sanki Brast Co Gleitschliff- und strahlvorrichtung
WO2005090002A1 (fr) * 2004-03-19 2005-09-29 Walther Trowal Gmbh & Co. Kg Procede et dispositif pour peindre de petites pieces
DE202005020769U1 (de) * 2005-03-04 2006-09-28 Nunner, Dieter Vorrichtung zur Beschichtung von Kleinteilen
ITMI20101274A1 (it) * 2010-07-12 2012-01-13 Paolo Redaelli Processo a secco di finitura in massa di superfici e macchina relativa
US20210394330A1 (en) * 2019-05-21 2021-12-23 Paolo Redaelli Improved vibroblasting method and relative machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH400811A (fr) * 1963-06-17 1965-10-15 Carpenter Leandre Pistolet de sablage
DE2440153A1 (de) * 1973-08-29 1975-03-06 Stork Brabant Bv Vernebelungsgeraet fuer fluessigkeit
DE3811680A1 (de) * 1987-06-05 1988-12-22 Sanki Brast Co Gleitschliff- und strahlvorrichtung
WO2005090002A1 (fr) * 2004-03-19 2005-09-29 Walther Trowal Gmbh & Co. Kg Procede et dispositif pour peindre de petites pieces
DE202005020769U1 (de) * 2005-03-04 2006-09-28 Nunner, Dieter Vorrichtung zur Beschichtung von Kleinteilen
ITMI20101274A1 (it) * 2010-07-12 2012-01-13 Paolo Redaelli Processo a secco di finitura in massa di superfici e macchina relativa
US20210394330A1 (en) * 2019-05-21 2021-12-23 Paolo Redaelli Improved vibroblasting method and relative machine

Similar Documents

Publication Publication Date Title
CA3010954C (fr) Methode et appareil de finition de surface abrasive a cavitation fluidique
ES2409161T3 (es) Dispositivo y procedimiento para la limpieza, activación o pre-tratamiento de piezas de trabajo mediante chorros de nieve carbónica
US6883732B2 (en) Fluid spraying apparatus, method, and container
US3343304A (en) Apparatus for wet abrasive blasting
US20070207713A1 (en) Method for removing surface coatings
PL187675B1 (pl) Sposób i urządzenie do obróbki, zwłaszcza do czyszczenia, ścieralnego oczyszczania lub usuwania powłok, grafitti lub innych powierzchniowych zanieczyszczeń na częściach, wyrobach lub powierzchniach
WO2024134409A1 (fr) Machine et procédé de traitement à la vapeur de surfaces
JP4169239B2 (ja) 液中表面加工装置および加工方法
RU2450906C2 (ru) Установка для аэрогидродинамической абразивной очистки поверхностей, форсунка для нее (варианты), способ аэрогидродинамической абразивной очистки поверхностей и состав для нее
RU2421285C2 (ru) Способ очистки поверхности от всевозможных покрытий и загрязнений с использованием гидрокавитационного эффекта и устройство для его реализации
CN2185654Y (zh) 气压无尘喷砂设备
IT202100016664A1 (it) Macchina per trattamenti a vapore di superfici e relativo procedimento
RU2752735C1 (ru) Моечная головка для струйной очистки
JPH0120037B2 (fr)
TWI755660B (zh) 軸狀工件的表面處理裝置
RU2525955C1 (ru) Установка пескоструйная универсальная
RU2728147C1 (ru) Комбинированная моечная установка
GB2372039A (en) Method for removing surface coatings
JPH0571315B2 (fr)
JP2003136408A (ja) 熱可塑性樹脂表面の処理法
JP2024035137A (ja) ブラスト装置、ブラスト方法、研削材用乾燥機、循環式のブラストシステム、および、ブラスト装置用の混合部
RU2151689C1 (ru) Способ гидроабразивной очистки поверхностей
Lines RM4 0 REMOVES WASTE WATER CONTAMINANTS
AU2003259633A1 (en) Method for Removing Surface Coatings

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23841316

Country of ref document: EP

Kind code of ref document: A1