Method and apparatus for producing a tubular sealing element
AssigneeHilti Aktiengesellschaft
InventorsAndreas Ober, Björn Bambach, Walter Braunmüller, Hanin Jildeh
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Abstract
A method for producing of a tubular sealing element for sealing a safing slot in a curtain wall construction is described, particularly for sealing the slot with regard to noise, smoke, and fire and if applicable with regard to water, and an apparatus for producing such a tubular sealing element, as well as to the use of the tubular sealing element produced according to the invention for fire-, smoke-, sound- and water-proof sealing of perimeter joints in curtain wall constructions are described. In particular, an improved method for continuous and endless production of a tubular sealing element for different safing slot dimensions is described.
Claims19
A method for producing a tubular sealing element for sealing a building joint, the method comprising:
- a) providing a first film on a conveyor belt,
- b) applying a reaction mixture capable of flow on a top side of the first film,
- c) providing a second film over the applied reaction mixture and over a first and a second side edge region of the first film,
- d) connecting a first side edge region of the second film with the first side edge region of the first film, and connecting a second side edge region of the second film with the second side edge region of the first film, to produce a tubular sealing element with a first connection area and a second connection area, and
- f) shaping a profile geometry, wherein a sealing portion of the profile geometry, in cross section, consists of one sealing region,
- wherein the method further comprises metering flow of the reaction mixture to have a volume corresponding to an inside volume of the tubular sealing element, in a reacted state, and
- wherein parts of the first film and parts of the second film completely enclose the reaction mixture.
An apparatus for producing a tubular sealing element, for sealing a safing slot in a curtain wall construction, having a casting system for mixing and applying a reaction mixture capable of flow, the apparatus comprising:
- a) a first feed apparatus for supplying a first film,
- a) a second feed apparatus for supplying a second film,
- c) at least one conveyor to lay the first and second film flat and to convey the first and second film,
- d) a shaping shoulder for shaping the first film,
- e) a metering system for applying a reaction mixture capable of flow,
- f) a thermal welding system for connecting a first side edge region of the second film with the first side edge region of the first film, and connecting a second side edge region of the second film with the second side edge region of the first film,
- g) a reaction segment to foam the reaction mixture capable of flow,
- h) a conveyor to guide the films, and
- i) at least one further conveyor belt or profile to shape the tubular sealing element to have a profile geometry, wherein a sealing portion of the profile geometry, in cross section, consists of one sealing region.
Dependencies are inferred from the claim text.