Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
  • B29C48/154—Coating solid articles, i.e. non-hollow articles
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L15/00—Washing or rinsing machines for crockery or tableware
  • A47L15/42—Details
  • A47L15/4209—Insulation arrangements, e.g. for sound damping or heat insulation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D1/00—Processes for applying liquids or other fluent materials
  • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
  • B05D1/265—Extrusion coatings
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/12—Casings; Tubs
• • G—PHYSICS
  • G10—MUSICAL INSTRUMENTS; ACOUSTICS
  • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
  • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
  • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
  • G10K11/162—Selection of materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D1/00—Processes for applying liquids or other fluent materials
  • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
  • B05D1/42—Distributing applied liquids or other fluent materials by members moving relatively to surface by non-rotary members
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D2201/00—Polymeric substrate or laminate
  • B05D2201/02—Polymeric substrate
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D2202/00—Metallic substrate
  • B05D2202/10—Metallic substrate based on Fe
  • B05D2202/15—Stainless steel
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
  • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
  • B05D3/0218—Pretreatment, e.g. heating the substrate
  • B05D3/0245—Pretreatment, e.g. heating the substrate with induction heating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
  • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/25—Component parts, details or accessories; Auxiliary operations
  • B29C48/266—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/25—Component parts, details or accessories; Auxiliary operations
  • B29C48/285—Feeding the extrusion material to the extruder
  • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
  • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
  • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
  • B29K2105/16—Fillers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
  • B29K2995/0037—Other properties
  • B29K2995/0063—Density
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/762—Household appliances

Definitions

• the present invention relates to a method for sound insulation and / or sound insulation of metallic components and / or plastic components.
• Vibrations which are often in the audible range of the human ear.
• Vibrations are transmitted in the form of structure-borne noise over the entire machine, the apparatus or the device and can be emitted at remote locations in the air as disturbing sound.
• structure-borne noise damping these sheets or plastic components, for example, in the automotive industry or in the manufacture of household appliances with sound-absorbing coverings, so-called
• a prefabricated bitumen mat is adhered to at least one component for producing a dishwasher by applying a ready-to-use, flowable and reactively hardenable bituminous mixture to the component and / or to the bitumen mat such that at least one, preferably elongated, In particular, line-shaped or strand-shaped, adhesive bead is formed which at least partially of at least one unencumbered, ie area surrounded by reactive bituminous material, and by compressing the component and the bitumen mat prior to curing of the bituminous mixture.
• EP 0766714 A describes plastisol compositions based on vinyl chloride-vinyl acetate copolymers prepared by the suspension polymerization process. These plastisol compositions have a low viscosity even at a low polymer to plasticizer ratio, so that they are airless sprayable and have good gelling properties. The document further discloses that coatings based on said plastisols show good noise-damping effect. In this document, it is proposed to use these plastisols in the underfloor area of motor vehicles, including the wheel arches for structure-borne sound-absorbing coating and corrosion protection and protection against abrasion.
• EP 702708 A describes sound-damping coatings for sheets in the underfloor area of motor vehicles based on plastisols consisting of 5 to 60 wt.% Of at least one powdered styrene copolymer or
• the plastisol formulations described there are suitable for producing abrasion-resistant, single-layered, spray-applied documents on metal sheets, in particular in the underfloor region of motor vehicles, in order to reduce the impact caused by the impact of the particles
• thermoplastic compositions for use as sound-damping and vibration-insulating, laminated or laminated bodies, in particular for motor vehicles.
• the thermoplastic materials are intended
• thermoplastic compositions Contains 0.6 to 50% chlorinated polyethylene, 20 to 95% fillers and 4 to 60% with the chlorinated polyethylene compatible plasticizer. It is stated that these thermoplastic compositions are used as sheet material in motor vehicles, buildings, household appliances and industrial machines for soundproofing and
• Vibration isolation can be used.
• WO2006 / 076958 A1 discloses sprayable, low-viscosity rubber damping compositions based on liquid rubbers or elastomers and vulcanizing agents which contain small amounts of structurally reinforcing fiber fillers; they should be distinguished by the absence of conventional solid rubbers and have a very low viscosity in the application state.
• Such acoustic compositions can be sprayed with the aid of fully automatic application systems and are preferably processed in vehicle construction in the shell.
• Plastic components are applied in the thermoplastic compounds by direct extrusion at melt temperatures between 120 and 300 ° C to the components as a defined profile, the compounds before heating in granular form with a density of 1, 5 to 5 g / cm 3 .
• Metallic components are preferably thin-walled sheets of steel, aluminum and in particular stainless steel.
• Plastic components may, for example, consist of thin-walled PVC, polycarbonate, polypropylene, acrylonitrile-butadiene-styrene (ABS) polymers or glass fiber reinforced plastics (GRP).
• ABS acrylonitrile-butadiene-styrene
• GRP glass fiber reinforced plastics
• the process according to the invention can preferably be used wherever the long residence times at high temperatures in the painting lines of the automotive industry are not available.
• These components to be coated can be part of so-called “white goods”, ie of household appliances or household appliances such as dishwashers,
• the granules may have a grain diameter of 0.5 mm to 30 mm, preferably from 2 to 10 mm.
• the grain size can be z. B. be determined by sieve analysis.
• the grain has a spherical or lenticular shape, but it may also be elliptical or cylindrical.
• the granules are to be surface free of adhesive or block free, so that sticking together to larger aggregates during storage and promotion of the granules is avoided.
• Thermoplastic compounds in the context of this invention are mixtures of unmixed thermoplastic polymers to which additional fillers, optionally reinforcing agents and / or other additives have been added.
• the compounds have a density of 1, 5 to 5 g / cm 3 before being heated in granular form.
• the specified density should thus correspond to the density at room temperature, preferably at 20 ° C.
• they should be highly filled, that is to say have a filler content of at least 60% by weight.
• thermoplastic polymers to be used are vinyl polymers, in particular ethylene-vinyl acetate (EVA), polyolefins, polyamides (PA), polyesters, polyacetals,
• EVA ethylene-vinyl acetate
• PA polyamides
• PA polyamides
• polyacetals examples of thermoplastic polymers to be used are vinyl polymers, in particular ethylene-vinyl acetate (EVA), polyolefins, polyamides (PA), polyesters, polyacetals,
• EVA ethylene-vinyl acetate
• PA polyamides
• polyesters polyacetals
• Polycarbonates, polyurethanes, ionomers or bitumen are also possible to use mixtures of the abovementioned unmixed thermoplastic polymers.
• Particularly preferred are EVA, PA or mixtures thereof.
• fillers serve inorganic salts or oxides, preferably those with a high density between 2.5 and about 12 g / cm 3 .
• examples of such fillers are zinc oxide (ZnO), tin dioxide (SnO 2 ), titanium dioxide (titanium (IV) oxide, TiO 2 ), iron oxides - in particular iron (II) oxide (FeO), iron (III) oxide (iron sesquioxide Fe 2 O 3 ), iron (II, II) oxide (ferroferrioxide Fe 3 O 4 , magnetite), barium sulfate (BaSO 4 ), lead sulfate (leadiviol, PbSO 4 ), aluminum hydroxide (eg in the form of Hydrargillite, bayerite, nordstrandite) or else aluminum metahydroxide (eg in the form of diaspore or boehmite), hafnium boride, hafnium carbide, hafnium nitride, hafnium dioxide (HfO 2
• rock or ore flours are dolomite, cassiterite (tin stone, Sn0 2 ),
• Bismuth blend (eulytine, pebble bismuth, Bi 4 [Si0 4 ] 3 ), bismuth luster (bismuthine, bismuthine, Bi 2 S 3 ), ilmenite (titanium iron, FeTiO 3 ) and granite rock flour. Very particular preference is given to the use of barite, iron oxides, aluminum hydroxides or mixtures thereof.
• the fillers used have a particle size range between 0.01 and 5000 ⁇ , preferably between 0, 1 and 100 ⁇ , more preferably 0.5 and 20 ⁇ .
• additives are hot melt adhesives and / or adhesion promoters and release agents.
• thermoplastic compound to be used according to the invention preferably contains 10 to 30% by weight, more preferably 15 to 25% by weight, thermoplastic polymers, 70 to 90% by weight, particularly preferably 65 to 85% by weight, filler (s) and 0 to 10% by weight, particularly preferably 1 to 5% by weight, of a hotmelt adhesive, the sum of the constituents being 100% by weight.
• the filled thermoplastic polymer and the hotmelt adhesive can each be present in granulated form as a mixture or mixture in the compound.
• the granules of the filled thermoplastic polymer may be coated with the hot melt adhesive.
• the granules are surface-coated with a suitable release agent; this release agent may be, for example, talc, fumed silica, molecular sieve powder, carbon black, polyethylene powder, ethylene vinyl acetate powder or other finely divided non-reactive polymer powder. In principle, even at slightly elevated temperature fusible release agents such. B. waxes are sprayed onto the granule surface.
• the filled granules and hot melt adhesive are compounded prior to extrusion and provided to the user as a finished product.
• the filled granules and the hotmelt adhesive are brought separately to the place of application and mixed there inline and fed to the extruder.
• Feeding the operational thermoplastic compound to the extruder may be by gravity or pneumatic conveying systems. Under pneumatic conveying systems are understood in this context suction and / or blow conveyor.
• the feeding of the thermoplastic compound or the components containing the filled granules and the hot melt adhesive and / or other auxiliaries is preferably carried out by continuous gravimetric or volumetric dosing such that depending on the application, a defined profile more constant or predetermined variable
• the individual components of the compound can be supplied to the extruder in a volume-accurate manner.
• the preheating of the substrate before coating to a defined temperature can be achieved by infrared radiation, laser radiation, hot air or in metallic
• Substrates also be made inductively.
• the inductive preheating can be done in particular dynamically, d. H. a sensor determines the substrate temperature, this is then compared with a predetermined setpoint to determine and adjust the necessary heating power of the induction heating.
• a predetermined setpoint Preferably, corresponding ones are
• Preheating mounted directly on the extruder head or immediately before, so that the preheating is carried out promptly for coating.
• the procedure for generating the relative movement can be as follows:
• manipulators for the purposes of this invention are devices that allow a physical interaction with the environment. In the specific case, this is the moving part of the structure that performs the mechanical work of the extruder head.
• the manipulator used can be a robot with 5 or 6 axes of rotation or translation (rotational or translatory axes), whereby the combination of the individual movements into a total movement
• the robot can carry the extruder - including the preheater - and perform the relative movements. Similar robots are described for example in the documents US5358397, EP0787576 B1, DE10137214 A1.
• the manipulator is preferably located stationarily adjacent to a conveyor belt, the manipulator moving the extruder mounted thereon or the extruder die only along two mutually orthogonal axes.
• the component to be coated is mounted on a conveyor horizontally on the
• Guide devices is provided transversely to the transport direction, control the beginning and end of the extrusion of the coating material.
• the component to be coated is passed by means of a suitable robot to the nozzle of the extruder.
• the robot has up to 6 rotational or displacement axes.
• the component coated with the sound-damping or insulating compound is firstly installed in the device or the machine and the subsequent process heat, for example from an existing coating device, is used for the final curing of the compound.
• Figure 1 shows a possible embodiment of the direct extrusion device
• Figure 2 shows a complete structure for carrying out the inventive
• FIG. 1 shows the essential parts of a direct extrusion device.
• the blower station 1 contains, inter alia, a filter for keeping the conveying air of Suspended and dust particles.
• the conveying air serves to pneumatically transport the filled granules to be extruded from the storage container 2 via the hose 4 into the filling hopper 3 of the extruder 5. From the hopper, the granules, automatically controlled, conveyed in the specified amount in the extruder. Not shown is the extruder die and the device for positioning the components to be coated.
• FIG. 2 shows a coating installation in which both the component and the nozzle move.
• the transport device 6 feeds the components to be coated from the warehouse or a preparation station of the coating installation 7.
• the components are fed to the conveyor device 8 at point 7.
• the apparatus 8 effects the transport of the components in the horizontal direction to the predetermined coating station 9, in the illustrated case a stationary manipulator or robot with, for example, 3 rotating or displacing axes
• the robot arm carries only the extrusion die, the compound already melted in the extruder 11 is conveyed from the extruder to the extrusion die at the end of the robot arm via the hose connection 10.
• the components are conveyed to the station 12 and at this station Place on another conveyor belt for packaging ng or further processing.
• the supply of the coated components from the conveyor device 8 on the conveyor belt 13 is also shown as a manual operation. Again, this can be done with the help of suitable and known manipulators.
• FIG. 3 shows in detail the extrusion nozzle 14, which is guided at a constant angle ⁇ over the substrate 16 coated with the compound 15. This is important so that the predetermined coverage and geometry can be maintained.
• the arrow 17 indicates the relative movement of the component 16 to the nozzle 14.
• both the conveyor device and the coating station are based on the size and geometry of the components to be coated. If the component to be coated is, for example, a complete washing container of a washing machine, a dishwasher or a housing cockpit, the design of the conveying devices for feeding the components to the coating station must be adapted thereto. The manipulator or robot carrying out the coating must also be designed accordingly. Such devices are already known for example from the automotive industry.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Multimedia (AREA)
• Mechanical Engineering (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Extrusion Moulding Of Plastics Or The Like (AREA)
• Laminated Bodies (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Plasma & Fusion (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

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Family Applications (1)

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Citations (5)

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• 2013
  • 2013-12-19 JP JP2015548544A patent/JP6297588B2/ja not_active Expired - Fee Related
  • 2013-12-19 KR KR1020157016094A patent/KR102210789B1/ko not_active Expired - Fee Related
  • 2013-12-19 MX MX2015007890A patent/MX377708B/es active IP Right Grant
  • 2013-12-19 EP EP13814525.5A patent/EP2934766B1/de active Active
  • 2013-12-19 BR BR112015013971-0A patent/BR112015013971B1/pt not_active IP Right Cessation
  • 2013-12-19 CN CN201380065752.XA patent/CN104870104B/zh not_active Expired - Fee Related
  • 2013-12-19 WO PCT/EP2013/077281 patent/WO2014096125A1/de not_active Ceased
  • 2013-12-19 HU HUE13814525A patent/HUE034734T2/en unknown
• 2015
  • 2015-06-19 US US14/744,084 patent/US10118327B2/en active Active

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