Heating device for a machine producing corrugated cardboard
First Claim
1. A heating device for a machine producing corrugated cardboard and utilizing convection from a heating fluid circulating in a plate-shaped heat exchanger, comprises a heating member in which saturated steam is circulated, said heating member having a rectangular plate member with side walls, a front wall and a back wall integral with the plate member, a bottom surface of said plate member being connected to a deformed sheet of steel having a small thickness to form passages between the plate member and sheet, said sheet of steel having opposite edges folded at 45°
- to a plane of the sheet so as to form an inlet chamber and an outlet chamber for a heating fluid, said heating member being associated with a rigid sub-frame, connecting means for connecting the sub-frame to the heating member including adjustment elements fitted so as to avoid heat transmission between the heating member and the sub-frame, the heating member and sub-frame being fashioned in a floating manner within the machine for manufacturing corrugated cardboard in a way to take into consideration thermal expansion resulting from the heating of the heating member.
1 Assignment
0 Petitions
Accused Products
Abstract
A heating device for corrugated cardboard comprises a heating member which is formed by a heating plate consisting of a rectangular plate having side walls, front and back walls integral with the plate and a lower or bottom surface of the plate is connected to a sheet of deformed steel having a small thickness to present cells or passages which are obtained by deformation. The front and back borders of the sheet of steel have been folded at 45° angles so as to form a front chamber and a back chamber that act as manifolds for the flow of fluid in the passages. The heating member is connected in a floating manner to a rigid sub-frame by means of rods, and the whole sub-frame and member are also connected in a floating manner to the main frame of the machine that produces the corrugated cardboard.
9 Citations
9 Claims
-
1. A heating device for a machine producing corrugated cardboard and utilizing convection from a heating fluid circulating in a plate-shaped heat exchanger, comprises a heating member in which saturated steam is circulated, said heating member having a rectangular plate member with side walls, a front wall and a back wall integral with the plate member, a bottom surface of said plate member being connected to a deformed sheet of steel having a small thickness to form passages between the plate member and sheet, said sheet of steel having opposite edges folded at 45°
- to a plane of the sheet so as to form an inlet chamber and an outlet chamber for a heating fluid, said heating member being associated with a rigid sub-frame, connecting means for connecting the sub-frame to the heating member including adjustment elements fitted so as to avoid heat transmission between the heating member and the sub-frame, the heating member and sub-frame being fashioned in a floating manner within the machine for manufacturing corrugated cardboard in a way to take into consideration thermal expansion resulting from the heating of the heating member.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
Specification