Painting a band on a tube

• US 4,482,584 A
• Filed: 07/26/1982
• Issued: 11/13/1984
• Est. Priority Date: 07/27/1981
• Status: Expired due to Fees

• Current Assignee: Mannesmann AG Mannesmannufer 2
• Original Assignee: Mannesmann AG (Vodafone Group PLC)
• Inventors: Nicolai, Franz, Hess, Walter, Gotting, Otto
• Primary Examiner(s): BECK, SHRIVE
• Application Number:
  US06/401,616
• Time in Patent Office: 841 Days
• Field of Search: 118/665, 118/323, 118/691, 427/286, 427/424
• US Class Current: 427/286
• CPC Class Codes: B05B 13/0207 the work being an elongated body, e.g. wire or pipe B05B13/0436, B05B13/0463 take precedence
• CPC Class Codes: B05D 1/02 performed by spraying
• CPC Class Codes: B21C 51/005 Marking devices
• CPC Class Codes: G02B 6/4482 Code or colour marking

Abstract

Painting a band on elongated stock having an elongated edge by means of a spray gun placed at a particular distance from the stock which is controlled by a driven spindle mounting the gun. A scanning unit has a particular distance from the edge of the stock and scans an edge of a painted band, and a control circuit is connected to the scanning unit and operates the spindle drive for maintaining the spray gun on the spindle in a particular position relative to the edge of the stock.

Claims

1. Method of controlling the position of a colored band on a split tube and in relation to a longitudinal edge thereof, being one edge of a bent plate, there being an adjustable spray gun for providing said band, comprising the steps of

positioning a scanning unit in particular relation to said edge, the particular relation defining a position of an edge of the band;

scanning the edge of the band as it has been painted by the spray gun; and

adjusting the spray gun in dependence upon the scanning so as to maintain the particular relation between the band and the edge of the split tube throughout.

2. Method as in claim 1 and using a dye with a drying time of less than 2 seconds.

3. Method as in claim 1 and positioning the spray gun at a distance from the stock to obtain a band of a width of about 1 cm.