Method and apparatus for producing a universal profile element
AssigneeHilti Aktiengesellschaft
InventorsWalter Braunmueller, Manfred Klein
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Abstract
A method for producing a profile element for sealing building joints, particularly for sealing them with regard to noise and smoke and, if applicable, with regard to fire is described, as is an apparatus for producing such a profile element, as well as use of the profile element produced according to the invention for acoustical, smoke-proof and/or fire-proof sealing of connection joints in drywall walls, above all of expansion joints. In particular, an improved method for continuous and endless production of a universal profile element for different profile dimensions is described.
Claims18
A method for producing a profile element for sealing a building joint, 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, wherein the reaction mixture comprises an intumescent material,
- c) connecting a first side edge region of the first film with a second side edge region of the first film to produce an essentially cylindrical profile element and thereby obtaining a connection element, wherein a volume of the reaction mixture capable of flow to be applied is metered in such a manner that the reaction mixture corresponds to an inside volume of the profile element produced, in the reacted state, and wherein the film completely encloses the reaction mixture,
- d) perforating the profile element, wherein perforating the profile element comprises perforating the connection element, thereby forming a perforated region capable of separation, tearing apart, or pulling apart of the first side edge region and the second side edge region.
An apparatus for producing a profile element, for sealing a building joint, having a casting system for mixing and applying a reaction mixture capable of flow, comprising
- a) a first feed apparatus for supplying a first film,
- b) optionally, a roll for perforating the first film,
- c) at least one conveyor for laying the first film flat and conveying the first film,
- d) a shaping shoulder for shaping the first film,
- e) a metering system for applying a reaction mixture capable of flow,
- f) a first thermal welding system for connecting a first side edge region of the first film with a second side edge region of the first film, thereby obtaining a connecting element,
- g) a reaction segment for allowing the reaction mixture capable of flow to foam,
- h) conveying technology for precise guidance of the first film,
- i) optionally, at least one conveyor belt or profile for shaping the desired profile geometry,
- j) a perforation unit for venting the profile element,
- k) a perforation unit for perforating the connection element, thereby forming a perforated region capable of separation, tearing apart, or pulling apart of the first side edge region and the second side edge region, and
- l) optionally, a cutting unit for cutting the profile element to the desired length.
Dependencies are inferred from the claim text.