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US 6,648,042 B2Granted
Load-applying device for a double facer
AssigneeKabushiki Kaisha Isowa
InventorsHiroshi Saito, Masami Umemura
Life of this patent
Estimating the term…
Abstract
A load-applying device used in a double facer that manufactures a corrugated board, the load-applying device comprising load bodies that are caused to ride above a corrugated board sheet only by the weight of weight blocks are disposed in a sheet conveying direction and in a direction at right angles of such sheet conveying direction; thus applying a load to the corrugated board sheet and bonding the corrugated board sheet without causing crushing of the corrugated board sheet or faulty bonding.
Claims10
A load-applying device used in a double facer that comprises:
- a heating section into which a single-faced corrugated board sheet and a liner sheet are supplied, and glue applied as a coating to crests of corrugations of said single-faced corrugated board sheet is hardened so that said single-faced corrugated board sheet and liner sheet are bonded together, and
- a cooling section which cools said corrugated board sheet and said liner sheet bonded together in said heating section, wherein
- said load-applying device is comprised of:
- a surface pressure applying body which is disposed above said corrugated board sheet so as to face said corrugated board sheet and which applies a surface pressure to said corrugated board sheet,
- weight blocks which are carried on top of said surface pressure applying body, and
- load bodies in which one end of said surface pressure applying body is fastened to said double facer, while another end thereof is caused to ride on said corrugated board sheet in a sheet conveying direction, and wherein
- a plurality of the load bodies are disposed in a direction perpendicular to said sheet conveying direction.
4 more elements
A load-applying device used in a double that comprises:
- a heating section into which a single-faced corrugated board sheet and a liner sheet are supplied, and glue applied as a coating to crests of corrugations of said single-faced corrugated board sheet is hardened so that said single-faced corrugated board sheet and liner sheet are bonded together, and
- a cooling section which cools said corrugated board sheet and said liner sheet bonded together in said heating section, wherein
- said load-applying device is comprised of:
- a surface pressure applying body which is disposed above said single-faced corrugated board sheet and faces said single-faced corrugated board sheet so as to cover an entire surface of said single-faced corrugated board sheet in a direction of width thereof, said surface pressure applying body applying a surface pressure to said single-faced corrugated board sheet, and
- weight blocks which are carried on said surface pressure applying body, at least two or more of said weight blocks being provided, and wherein
- one end of said surface pressure applying body is fastened to said double facer, while another end of said surface pressure applying body is caused to ride on said corrugated board sheet in a sheet conveying direction.
3 more elements
A load-applying device used in a double facer that comprises:
- a heating section into which a single-faced corrugated board sheet and a liner sheet are supplied, and glue applied as a coating to the corrugation crests of the corrugations of the single-faced corrugated board sheet is hardened so that the single-faced corrugated board sheet and liner sheet are bonded together, and
- a cooling section which cools the corrugated board sheet bonded in the heating section, wherein
- said load-applying device is comprised of:
- a surface pressure applying body which has connecting sections on upstream side and downstream side thereof, said surface pressure applying body being disposed above said corrugated board sheet so as to face said corrugated board sheet and applying a surface pressure to said corrugated board sheet,
- weight blocks which are carried on said surface pressure applying body, and
- load bodies formed in the form of a chain in which a plurality of said surface pressure applying bodies are disposed in a sheet conveying direction and formed into the form of a chain by being connected at said connecting sections, one end of said surface pressure applying bodies formed into the form of chain being fastened to said double facer, while another end of said surface pressure applying bodies formed into the form of chain being caused to ride on said corrugated board sheet in said sheet conveying direction, and wherein
- a plurality of the load bodies formed into the form of chain are disposed in a direction perpendicular to said sheet conveying direction.
4 more elements
Dependencies are inferred from the claim text.