Equipment for the continuous production of foam boards

US4264291A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Erwin Hoffmann · Leverkusen, DE
• Werner Dietrich · Odenthal, DE
• Karl J. Kraft · Leverkusen, DE

Key dates

• Filing date: Oct 18, 1979
• Grant date: Apr 28, 1981
• Expiry date: Oct 18, 1999

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2007/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to equipment for the continuous production of foam boards, which may be laminated between facings, from a liquid foamable reaction mixture. The apparatus broadly comprises PA1 (i) a conveyor, PA1 (ii) an inclined table at one end of said conveyor, the incline of said table sloping downwardly toward said conveyor, PA1 (iii) a foam mixture application device located above said downwardly sloping surface, and PA1 (iv) a transverse foam mixture distribution device located downstream of said application device and located above said downwardly sloping surface thereby forming a space therewith. When sheets or relatively thin foam boards or sandwich boards are produced, the device used is generally additionally equipped with an upper conveyor. This invention primarily relates to such double conveyors. The liquid reaction mixture must be applied over the entire width in a particularly uniform layer in order to obtain a perfect final product. The device of the invention can also be used for the continuous foaming of buns.