Sealing method
AssigneeWatttron GmbH
InventorsMarcus Stein, Sascha Bach
Life of this patent
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Abstract
Embodiments of the invention relate to a sealing element for thermally connecting thermoplastic materials along a bent or curved contour, including a plurality of flat support substrates with a front face and a rear face, the substrates having at least one heating element on the front face, and including a contoured element which has a front face in the shape of the contour to be sealed, wherein the rear face of the support substrates is secured to the front face of the contoured element and/or the front face of the support substrates is secured to the rear face of the contoured element.
Claims10
A sealing method for thermally bonding thermoplastic materials along a planar, bent or curved sealing contour of a product, comprising:
- heating, in a packaging machine a sealing member;
- pressing, in the packaging machine, the sealing member onto a region to be sealed, wherein the sealing member has a plurality of heating elements, which are individually controllable;
- and
- process control, comprising:
- measuring a characteristic variable from each heating element;
- and
- evaluating the characteristic variable from each heating element, comprising deciding whether the product is fault-free or faulty.
Dependencies are inferred from the claim text.