Classifications

• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
  • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
  • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
  • B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
• • 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
  • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
  • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
  • B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
• • 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
  • B05D2701/00—Coatings being able to withstand changes in the shape of the substrate or to withstand welding
• • 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
  • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
  • B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
  • B05D7/227—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of containers, cans or the like
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
  • Y10T29/49982—Coating
  • Y10T29/49986—Subsequent to metal working

Definitions

• the invention relates to a method and a device for applying liquid anticorrosive agents, in particular paint, to areas of packaging containers or container parts made of metal which are at risk of corrosion and which, after painting the container or container parts, are subjected to processing operations such as cutting, scoring, welding, shaping or the like. , have arisen as a result of local damage or removal of the paint.
• lacquers In order to largely avoid damage to the all-round painted container or container parts during subsequent deformation or processing, lacquers have been used so far that they have been adjusted so that they have both a high toughness and, as a result, a large degree of expansion and sufficient mechanical strength.
• varnishes are relatively expensive and often difficult to adjust in terms of the properties required.
• lacquers of different compositions are necessary. Nevertheless, when these paints are used, areas at risk of corrosion always occur when cutting or punching operations on the containers or container parts have to be carried out after they have been painted. This creates cut edges that can never be covered by the coating previously applied to the container or container parts.
• the invention has for its object to develop the method of the type mentioned so that a precise and material-saving coating or painting the local damage to the container or container parts can be done with the same anti-corrosion agent as the previous all-round coating.
• the solution to the above problem is that the areas at risk of corrosion formed on the containers or container parts are coated by the ink-jet method by program-controlled, punctiform application of the corrosion protection agent to form a film-like application.
• the ink-jet method can be used to apply targeted coatings that cover only the areas of the damage, regardless of the geometry of the container or container parts or their local damage. It is possible to limit the coatings only to narrow areas, such as scratched edges or cutting lines, without the need for an immersion treatment or a heat treatment, such as, for example, when melting electrostatically applied powder.
• the locally restricted areas can be coated both in the case of locally fixed or held containers or container parts and also during the movement or during the transport of the containers or container parts. Due to the targeted and metered application of the corrosion protection agent according to the ink-jet method, an extremely short period of time is required for the application of the corrosion protection agent to the areas which are generally very localized, whereby the layer thickness to be applied can be varied.
• the areal application can be achieved by partially covering all adjacent points of the applied anticorrosive agent or without overlapping by the liquid of adjacent points flowing into one another, without excess material having to be applied to the areas to be covered and removed again.
• EP 0 088 630 A3 describes a method for marking packaging containers with ink using the ink-jet method using program control first dot application of the ink to form an order is known. Markings of variable sizes can be made on rectangular boxes using the process described there.
• Post-published EP 0 209 896 A2 discloses a method for decorating containers made of metal or plastic by the ink-jet method using inks or pigmented paint jets by program-controlled application of individual color dots along peripheral lines of a wall to be printed as a raster image.
• the aforementioned measures make it possible to align all the containers or container parts before the punctiform application of the corrosion protection agents in such a way that the similar damage to the containers or container parts resulting from the previous processing is in the same place when passing through the spray nozzle arrangement, which makes it particularly simple Control of the spray nozzle arrangement results.
• a particularly useful device for this is characterized in that in the course of a conveying path of the container or container parts a stationary nozzle arrangement is provided in connection with an upstream device for aligning and / or fixing the container or container parts on the conveyor in order to hold the container or container parts on the To transfer and / or to hold conveyors in a corresponding position with respect to the nozzle arrangement.
• the above-mentioned device can be designed in a simple manner as an additional station of a processing machine, in that the parts machined on the machine, while maintaining their relative position with respect to a holding device, are transferred to the coating station downstream of the processing stations, in which the damaged nozzle arrangement is used by means of the fixed nozzle arrangement or areas free of corrosion protection agents.
• the nozzle arrangement can be adapted in a particularly simple manner to the geometric shape of the respective corrosion-prone area of the container or the container part. In addition to a simple nozzle arrangement, this also achieves very simple control of this nozzle arrangement in order to achieve the coating of the damaged areas, in particular when the container or container part is held stationary.
• the device in such a way that an optical path along the conveying path of the containers or container parts or electronic scanning device for determining the position of the containers or container parts and the areas at risk of corrosion present thereon, as well as a device for converting the scanning signals or the captured image into pixels and control signals derived therefrom and a block-shaped arrangement of spray nozzles which is larger than the respective corrosion-sensitive area in conjunction with a program control device for the spray nozzles which can be actuated as a function of the control signals.
• a camera can be used for this, for example in the manner of a video camera, by means of which the captured image is already broken down into pixels which are to be converted into control signals in a known manner in order to program the control device for:., Jritz nozzles to operate.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Spray Control Apparatus (AREA)
• Packages (AREA)
• Paints Or Removers (AREA)
• Details Of Rigid Or Semi-Rigid Containers (AREA)
• Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
• Revetment (AREA)
• Preventing Corrosion Or Incrustation Of Metals (AREA)
• Physical Or Chemical Processes And Apparatus (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6293172

Family Applications (1)

Country Status (12)

Families Citing this family (16)

Citations (1)

Family Cites Families (5)

• 1986
  • 1986-02-01 DE DE19863603126 patent/DE3603126A1/de active Granted
  • 1986-12-19 FI FI865209A patent/FI83845C/fi not_active IP Right Cessation
• 1987
  • 1987-01-07 DK DK006887A patent/DK162583C/da active
  • 1987-01-16 EP EP87100533A patent/EP0240651B1/de not_active Expired - Lifetime
  • 1987-01-16 DE DE8787100533T patent/DE3761949D1/de not_active Expired - Lifetime
  • 1987-01-16 AT AT87100533T patent/ATE51164T1/de not_active IP Right Cessation
  • 1987-01-28 ES ES8700199A patent/ES2002240A6/es not_active Expired
  • 1987-01-28 CA CA000528395A patent/CA1261209A/en not_active Expired
  • 1987-01-29 PT PT84214A patent/PT84214B/pt not_active IP Right Cessation
  • 1987-01-30 NO NO870400A patent/NO870400L/no unknown
  • 1987-01-30 JP JP62018794A patent/JPS62186971A/ja active Pending
  • 1987-01-30 AU AU68175/87A patent/AU587890B2/en not_active Ceased
• 1988
  • 1988-06-15 US US07/208,826 patent/US4842887A/en not_active Expired - Fee Related

Patent Citations (1)

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