Method for printing a blister film web in a packaging machine
A packaging machine and blister technology, which is applied in printing, packaging, transportation packaging, etc., can solve the problems of inaccurate storage, fluctuation, and interference of printing position accuracy, etc.
Inactive Publication Date: 2009-10-21
HEIDELBERGER DRUCKMASCHINEN AG
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Problems solved by technology
A problem then arises when closing the blister-formed shells inside the packaging machine: the length of the pre-made printed graphics on the blister film strip does not always correspond exactly to the length of the blister-formed shells, which requires stretching Device to draw the blister film to the desired length prior to attachment to the blister forming shell
[0005] In practice, however, it has been found that the printing inside the packaging machine is subject to various influences which have a disruptive, in particular degrading, effect on the printing position accuracy.
For example, speed changes or speed fluctuations occur during the transport of blister films or blister shells to the sealing device, so that the timing of the trigger signal is generated with errors
and with storage creates additional inaccuracy
Furthermore, the actual length of the blister-formed shell has fluctuations relative to the ideal theoretical length due to production
Method used
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Embodiment Construction
[0025] figure 1 A flow chart of a method according to the invention for printing a strip of blister film in a packaging machine is shown. The blister-formed shells are closed with blister film. According to the invention, a series of individual operations are carried out for this, which operations can also be carried out at least in part overlapping in time or simultaneously. In a first step 10, the strip of blister film is conveyed to the sealing device by a first conveying system. In a second step 12, the blister-formed shells are conveyed to the sealing device by means of a second conveying system. In a third step 14, the position of one of the blister-shaped shells is detected. In a fourth step 16, at least one detection signal is generated in one or more time intervals between the active time intervals of the closure device for closing the blister-formed shell, whereby, in a fifth step 18, according to This detection generates a trigger signal for the printing unit. ...
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The invention relates to a method for printing a blister film web (26) in a packaging machine (22), in which molded blister shells (24) are closed with blister film. In the method, a blister film web (26) is supplied to a sealing apparatus (28) via a first transport system, and molded blister shells (24) are supplied to the sealing apparatus (28) via a second transport system. The position of oneof the molded blister shells (24) is detected, and at least one detection signal is generated in one or more time intervals between the action time intervals of the sealing apparatus for closing the molded blister shells (24). A trigger signal for a printing device (40) is generated in dependence on a detection, and optical information is applied to the blister film web (26) by the printing device(40) at a position along the blister film web (26) which is arranged upstream of the sealing apparatus (28).
Description
technical field [0001] The invention relates to a method for printing a strip of blister film in a packaging machine in which blister forming shells are closed with a blister film. Background technique [0002] A number of different items or products are linked and / or presented to potential users or consumers in a blister pack. For this purpose, the blister pack comprises a blister-shaped shell having at least one concave, dimensionally stable shell-like formation in which one or more articles can be accommodated. Commonly used blister-formed shells are typically constructed of clear or opaque plastic. The blister-formed shell provided with the article is closed with a blister film. Usual blister films typically have one or more layers, polymers, paper, cardboard or metals such as, in particular, aluminum being used as material. It is particularly popular to pack pharmaceutical products such as tablets, dragees or capsules in blister packs. Blister films of such pharmace...
Claims
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IPC IPC(8): B65B61/02B65B57/02B65B41/00B65B41/16B65B9/04B41J2/01B41J29/38
CPCB65B7/164B65B5/103B41J3/407B65B61/025B65B41/16B41J15/04B41J15/165B65B51/16B41J11/42Y10T156/1089
Inventor J-A·菲舍尔H·祖尔J·祖尔
Owner HEIDELBERGER DRUCKMASCHINEN AG