Hot plate for double facer for the production of corrugated board and double facer comprising a plurality of said plates
AssigneeGuangdong Fosber Intelligent Equipment Co., Ltd.
InventorsMauro Adami, Marco Imposti
Life of this patent
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Abstract
The hot plate (11) includes an upper plate (61) joined to a lower plate (63) along respective sides parallel to each other. A heat transfer fluid circulation chamber (65) is defined between the upper plate (61) and the lower plate (63), with at least a first inlet (83) of the heat transfer fluid and at least a first outlet (87) of the heat transfer fluid. The lower plate (63) has two downwardly bent edges (63.2), extending along the sides of the upper plate joined to the lower plate. Stiffening ribs (79) are joined to the lower plate (63), along the heat transfer fluid circulation chamber, and to the downwardly folded edges (63.2s) of the lower plate (63).
Claims19
A hot plate for a double facer of a corrugated board production line, comprising an upper plate joined to a lower plate;
- wherein a heat transfer fluid circulation chamber is defined between the upper plate and the lower plate, with at least a first inlet of the heat transfer fluid and at least a first outlet of the heat transfer fluid;
- wherein the upper plate has a rectangular extension;
- wherein the upper plate is joined to the lower plate along two parallel sides of the upper plate;
- wherein the lower plate has, along said two sides, two downwardly bent edges;
- wherein a plurality of stiffening ribs are joined to the lower plate, along the heat transfer fluid circulation chamber, each stiffening rib having a first end joined to a first one of said downwardly bent edges of the lower plate and a second end joined to a second one of the downwardly bent edges of the lower plate.
A double facer for producing corrugated board comprising:
- a heating section comprising a series of hot plates arranged in sequence along a feeding path of a continuous strip of corrugated board;
- and traction members for towing the corrugated board sliding along the hot plates;
- wherein each hot plate comprises an upper plate joined to a lower plate;
- wherein a heat transfer fluid circulation chamber is defined between the upper plate and the lower plate, with at least a first inlet for a heat transfer fluid and at least a first outlet of the heat transfer fluid;
- wherein the upper plate has a rectangular extension;
- wherein the upper plate is joined to the lower plate along two parallel sides of the upper plate;
- wherein the lower plate has, along said two parallel sides, two downwardly bent edges;
- wherein a plurality of stiffening ribs are joined to the lower plate, along the heat transfer fluid circulation chamber, each stiffening rib having a first end joined to a first one of said downwardly bent edges of the lower plate and a second end joined to a second one of the downwardly bent edges of the lower plate.
Dependencies are inferred from the claim text.