Flexible press cover and shoe press roll with such a flexible press cover

A flexible press cover for a shoe press roll used for at least one of dewatering and calendaring a moving fibrous web, said flexible press cover comprising:

• a plastic layer;
• a conventional reinforcement embedded in said plastic layer, said conventional reinforcement used as a strengthening element, said conventional reinforcement being one of a woven fabric and a laid fabric, said laid fabric including a plurality of axially parallel longitudinal filaments and a plurality of circumferential filaments;
• a first end region and a second end region associated with said flexible press cover;
• and
• an additional strengthening element in a form of at least one additional filament in at least one of said first end region and said second end region, said additional strengthening element making said flexible press cover suitable to be fixed to a rotatable supporting element of the shoe press roll, said additional strengthening elements including a thickened bead with an internal diameter which is smaller than an internal diameter of a remaining of said flexible press cover, further including an other additional reinforcement being provided in said thickened bead.

A flexible press cover for a shoe press roll used for at least one of dewatering and calendaring a moving fibrous web, said flexible press cover comprising:

• a plastic layer;
• a conventional reinforcement embedded in said plastic layer, said conventional reinforcement used as a strengthening element, said conventional reinforcement being one of a woven fabric and a laid fabric, said laid fabric including a plurality of axially parallel longitudinal filaments and a plurality of circumferential filaments;
• a first end region and a second end region associated with said flexible press cover;
• and
• an additional strengthening element in a form of at least one additional filament in at least one of said first end region and said second end region, said additional strengthening element making said flexible press cover suitable to be fixed to a rotatable supporting element of the shoe press roll, wherein said additional strengthening elements being formed of additional circumferential filaments which form a continuation of said conventional reinforcement, said additional circumferential filaments being formed by at least one of an increased winding density and an increased filament thickness.

A flexible press cover for a shoe press roll used for at least one of dewatering and calendaring a moving fibrous web, said flexible press cover comprising:

• a plastic layer;
• a conventional reinforcement embedded in said plastic layer, said conventional reinforcement used as a strengthening element;
• a first end region and a second end region associated with said flexible press cover;
• and
• an additional strengthening element in a form of a strengthening ring in at least one of said first end region and said second end region, said strengthening ring being prefabricated from one of a plastic and a metal, said additional strengthening element making said flexible press cover suitable to be fixed to a rotatable supporting element of the shoe press roll, at least part of said strengthening ring is cast into said flexible press cover, as viewed in cross section through said strengthening ring.

A shoe press roll, comprising:

• a flexible press cover including a plastic layer, a conventional reinforcement embedded in said plastic layer, said conventional reinforcement used as a strengthening element, said conventional reinforcement being one of a woven fabric and a laid fabric, said laid fabric includes a plurality of axially parallel longitudinal filaments and a plurality of circumferential filaments;
• a first end region and a second end region associated with said flexible press cover;
• an additional strengthening element in a form of at least one additional filament in at least one of said first end region and said second end region, a cover inner surface of said flexible press cover in at least one of said first end region and said second end region having said additional strengthening elements, and an outer circumferential surface;
• a stationary supporting element having a round shape;
• a first roll end and a second roll end associated with said shoe press roll;
• and
• a first rotatable cover carrying disk at said first roll end, a second rotatable cover carrying disk at said second roll end, said first rotatable cover carrying disk and said second rotatable cover carrying disk mounted on said stationary supporting element, at least one of said first rotatable cover carrying disk and said second rotatable cover carrying disk including a clamping ring which can be displaced axially on an outer circumferential surface of said at least one of said first rotatable cover carrying disk and said second rotatable cover carrying disk, said clamping ring having a conical outer surface which engages in a conical inner surface of a ring that can be spread, said ring that can be spread resting in said cover inner surface, and an absence of fixing elements associated with said outer circumferential surface of said flexible press cover.

A shoe press roll, comprising:

• a flexible press cover including a plastic layer, a conventional reinforcement embedded in said plastic layer, said conventional reinforcement used as a strengthening element, said conventional reinforcement being one of a woven fabric and a laid fabric, said laid fabric includes a plurality of axially parallel longitudinal filaments and a plurality of circumferential filaments;
• a first end region and a second end region associated with said flexible press cover;
• an additional strengthening element in a form of at least one additional filament in at least one of said first end region and said second end region, a cover inner surface of said flexible press cover in at least one of said first end region and said second end region having said additional strengthening elements and an outer circumferential surface;
• a stationary supporting element having a round shape;
• a first roll end and a second roll end associated with said shoe press roll;
• a first rotatable cover carrying disk at said first roll end, a second rotatable cover carrying disk at said second roll end, said first rotatable cover carrying disk and said second rotatable cover carrying disk mounted on said stationary supporting element;
• a mounting ring being provided which, outside said flexible press roll, can be inserted into at least one of said first end region and said second end region having said additional strengthening elements, and, subsequent to said mounting ring being inserted, can be fixed to at least one of said first rotatable cover carrying disk and said second rotatable cover carrying disk together with said flexible press cover.