Process for producing formed and labelled three dimensional plastic articles
AssigneeSendvac M. Knape GmbH & Co. Maschinen und Anlagen KG
InventorMichael Knape
Life of this patent
Estimating the term…
Abstract
In a process for producing labelled and/or printed plastic formed articles, for example plastic trays, from a plastic film sheet, several formed articles being simultaneously shaped in a mat cyclically from the heated plastic film during one cycle, the mats being cooled during at least one intermediate cycle, and the formed articles being obtained from the mat in further subsequent cycles, according to the invention during the intermediate cycle or intermediate cycles the formed articles are provided with the labels and/or are printed by means of a process for printing curved surfaces.
Claims12
A process for producing formed labelled three dimensional plastic articles from a sheet of heated plastic film including the steps of providing at a first station a first sheet of the heated plastic film, shaping said sheet into a plurality of interconnected three dimensional articles, cooling the so formed sheet, at a second station providing an adhesive applicator and a label applicator, moving both of said applicators simultaneously, alternately aligning said applicators with said sheet and while said adhesive applicator is aligned with the sheet simultaneously applying adhesive to all of the shaped articles and simultaneously causing the label applicator to obtain a plurality of labels equal in number that of the articles, moving both of said applicators to align the label bearing applicator with the articles to which the adhesive has been applied and aligning the adhesive applicator with a source of adhesive, moving said label and adhesive applicators simultaneously to apply the labels and receive a new charge of adhesive.
A process for producing formed and labelled three dimensional plastic articles including the steps of providing a sheet of plastic film which sheet has been shaped into a plurality of interconnected three dimensional articles arranged as a group, providing adhesive applicators and label applicators, each arranged in groups corresponding to the group of articles, moving both of said groups of applicators simultaneously, aligning said adhesive applicators with said sheet and while said adhesive applicator is aligned with the sheet simultaneously applying adhesive to all of the shaped articles on the sheet and simultaneously causing the label applicators to obtain a plurality of labels equal in number to that of the articles, moving both of said applicators to align the label bearing applicators with the articles to which the adhesive has been applied and aligning the adhesive applicators with a source of adhesive, moving said label and adhesive applicators simultaneously to apply the labels and receive a new charge of adhesive.
Dependencies are inferred from the claim text.