method and device for the manufacture of packs of two different separated chemicals, the chemical reaction to produce warmth or cold got

摘要

The machine has two major assemblies on a common frame. The frost assembly makes inner sachets by taking continuous strip heat-sealable material, passing it through a tube shaper and edge seam welder to a first pair of counter-rotating spiders whose arms carry welding heads with automatic cut off blades. Time interlocked with the positions of the spider arms is a filler system for the chemical component esp. water based for the inner sachet. These sachets pass on a conveyor to the second major mechanism in which the outer sachets are similarly made from continuous strip, filled and sealed, the inner sachets dropping in individually.