Classifications

• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
  • C03C17/001—General methods for coating; Devices therefor
  • C03C17/003—General methods for coating; Devices therefor for hollow ware, e.g. containers
  • C03C17/005—Coating the outside

Definitions

• the invention relates to a method and a device for coating the outer surfaces of glass bottles with plastic, in which one or more glass bottles or the like in a horizontal position under a coating bar. brought and rotated.
• the invention has for its object to provide a method and an apparatus of the type mentioned, which allow the application of a coating on glass bottles to be coated in a simple and quick way, in a precisely predetermined layer thickness with low energy and equipment requirements.
• this is achieved in that an already precured plastic is used as the coating material.
• the viscosity of the coating material can be changed, for example by adjusting the degree of crosslinking.
• the supply of the coating material is controlled in such a way that the thickness of the layer is the same over the circumference of the glass container, while it can be different over the length of the glass container.
• the teaching of the invention ensures that the coating material to be applied to the bottles is already pre-hardened and, as a result, the resulting higher surface tension, the penetration of stock, such as dust, etc., is prevented.
• the chemical reactions initiated before the application prevent the formation of gases or other harmful reaction products, so that overall a high quality coating results.
• the curing time is shortened considerably, so that the energy requirement and the outlay on equipment are further reduced, which at the same time . represents an increase in performance.
• a device which has a frame or the like is particularly suitable for carrying out the method according to the invention.
• has at one end a receptacle for holding the bottle mouth and at the other end there is a receptacle for holding the bottle bottoms, at least one of the receptacles being slidably arranged in the frame.
• the parts of the holders which come into contact with the mouths and bottoms of the bottles are advantageously designed such that the mouths and bottoms of the bottles are covered, so that these remain completely free of coating material.
• the slidably arranged receptacle or receptacles can or are automatically brought into their clamping and unclamping position, which can be done hydraulically, pneumatically, electrically, electromechanically or mechanically.
• the workflow can be carried out completely automatically, so that a high throughput is possible.
• this extends to a coating bar for applying plastic material to the outer surfaces of glass bottles, which is equipped with a plurality of outlet nozzles for the coating material.
• the nozzles can be adjusted from a vertical position in angular positions, to be precise they can be swiveled to one side as well as to the other side, so that there is a good possibility of adaptation.
• the position of the nozzles can be determined during the coating process, which can be done, for example, mechanically or else electrically.
• Frame which is approximately U-shaped det.
• a receptacle 2 for holding the mouths and at the other end a receptacle 3 for holding the bottoms of the bottle 4 is.
• the displacement can be done in a conventional manner by mechanical, electrical, hydraulic, pneumatic means, etc.
• the parts 5, 6 of the holders 2, 3 which come into contact with the mouths and bottoms of the bottles 4 are rotatably mounted, so that the bottles 4 can be set in rotation in a horizontal position.
• the type of rotary drive is arbitrary.
• the parts 5,6 of the holders are designed so that the mouths and bottoms of the bottles 4 are covered, i.e. that no coating material can come into contact with them.
• a coating bar 7 which is connected to a storage container 3 for the coating material.
• the coating material is distributed from the storage container 8 over the entire length of the coating bar 7, and on its underside is equipped with a number of nozzles 9.
• the nozzles 9 are arranged pivotably in the coating bar 7, specifically they can be pivoted from both sides into angular positions, starting from a vertical position. The position of the nozzles is locked, so that wah During the coating process, the nozzles 9 retain their position unchanged once they have been set.
• the coating material used is already pre-hardened plastic, which runs out of the coating bar 7 onto the outer surface of the bottle 4 and is distributed evenly over the entire circumference as a result of its rotation.

Landscapes

• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Geochemistry & Mineralogy (AREA)
• Life Sciences & Earth Sciences (AREA)
• Organic Chemistry (AREA)
• Coating Apparatus (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Details Of Rigid Or Semi-Rigid Containers (AREA)
• Surface Treatment Of Glass (AREA)
• Spray Control Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6105906

Family Applications (1)

Country Status (4)

Cited By (2)

Families Citing this family (7)

Citations (5)

• 1980
  • 1980-06-28 DE DE19803024564 patent/DE3024564A1/de not_active Ceased
• 1981
  • 1981-06-23 JP JP56502157A patent/JPS57501025A/ja active Pending
  • 1981-06-23 EP EP81104831A patent/EP0043077A1/de not_active Withdrawn
  • 1981-06-23 WO PCT/EP1981/000079 patent/WO1982000137A1/de not_active Ceased

Patent Citations (5)

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