Sealing device for heat sealing foil material
AssigneeIdeepak Holding B.V.
InventorPieter Theodorus Joseph Aquarius
Life of this patent
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Abstract
The invention relates to a device for heat sealing two layers of foil material. To that end, the device comprises two blocks arranged opposite each other and conveying means for guiding the foil material between these blocks. Between the blocks, at least one heating element is provided, for heating the foil locally, and at least one circulating belt (20), which, in use, is guided along the blocks. The circulating belt (20) is built up from at least one layer of resilient material, so that a force applied by the blocks to the foil material is uniformly distributed over the sealing seam to be formed. The invention further relates to a circulating belt for use in a device according to the invention.
Claims14
A device for heat sealing two layers of foil material, comprising:
- two blocks suspended opposite each other;
- and
- a conveyor for guiding the foil material between the two blocks;
- at least one heating element provided between the two blocks;
- and
- at least one circulating belt, which is advanced along the two blocks, the at least one circulating belt comprising multiple layers of material, a first layer and a second layer of the multiple layers having different material properties, the first layer being made of a compressible resilient material, and a thickness of the first layer being greater than a thickness of the second layer, wherein the resilient material of the first layer of the at least one circulating belt is a foamed material.
Dependencies are inferred from the claim text.