摘要:
A cap sheet metal (and pivot sheet metal) is configured to be able to move linearly with a cap arm (and an arm stay) via engagement between an engagement hole and a fitting shaft. Furthermore, the cap sheet metal (and the pivot sheet metal) can move pivotally with respect to the cap arm (and the arm stay) using the fitting shaft, which engages with the engagement hole, as a pivotal shaft. Thus, even if, for example, the direction of biasing toward the applying roller deviates or a positional relationship with the applying roller deviates slightly, the liquid holding member moves and pivots in the bias direction depending on the deviation. As a result, the contacting pressure of a contacting portion on the applying roller can be made uniform.
摘要:
A coating apparatus includes: a coating roller configured to apply coating liquid to a recording medium; a measuring roller configured to intermittently supply the coating liquid to the coating roller by being brought into contact with and being separated from the coating roller; a coating liquid pan configured to stores the coating liquid; and a roller cover configured to cover the measuring roller. When the measuring roller moves between a contact position where the coating roller and the measuring roller come into contact with each other and a separation position where the coating roller and the measuring roller are separated from each other, the measuring roller and the roller cover integrally operate while maintaining their relative positions, in a state where the coating liquid pan is fixed.
摘要:
A roll coater with a recirculation loop is disclosed. Waste coating material form the roll coater is treated in an agitator unit containing, for example, one or more ultrasonic transducers, and optionally a filtration unit and/or temperature control unit to produce reconditioned coating solution, such as a reconditioned sol-gel precursor solution. Also disclosed is preventative maintenance module comprising a cleaning unit that is designed to engage and clean the applicator and/or metering rolls in a roll coater.
摘要:
Substrate treatment apparatus, printers, and methods to treat a print substrate are disclosed. An example apparatus includes a first roller to receive a treatment fluid from a reservoir, a blade to adjust an amount of the treatment fluid present on the first roller, and a second roller to receive an adjusted amount of the treatment fluid from the first roller and to apply the treatment fluid to a substrate, the treatment fluid applied to the substrate to result in a layer of treatment fluid less than about 0.4 micrometers thick on the substrate.
摘要:
A roll support apparatus suitable for use in a roll coating machine is described. The roll support apparatus includes a roll support frame for rotatably supporting a roll coating head roll associated with the roll support frame, the roll support frame adapted for pivoting movement relative to a roll support frame mounting base. Furthermore, a roll carriage suitable for use in a roll coating machine is described. The roll carriage includes a roll support frame for rotatably supporting a respective roll and further includes a roll support frame mounting for movably mounting the roll support frame so that it moves between a coating position and an idle position, wherein the roll support frame mounting in use is mounted substantially above the respective roll to inhibit contamination of the roll support frame mounting.
摘要:
A dosing device for the application of a coating mix (6) onto a running web, in particular a paper or paperboard web (1), which device comprises a rod (8) that is supported revolvingly over its entire length in a rod cradle (12), and a pressing device (13) acting on the rod cradle and producing a pressure of the rod onto the web (1) and onto the holding-on device (2, 17, 15) of the web, the rod (8) being provided with a wear resistant surface coating (15) with a hardness of about 10 to about 100 according to Shore A. The invention also relates to methods of using said rod, and to said revolving rod.
摘要:
Methods and apparatus for coating a major surface of a strip article advancing past and in contact with an applicator roll by supplying coating material to the applicator roll for transfer to the strip surface while urging a metering roll against the applicator roll to impart a coating profile to the coating material on the applicator roll before the coating material having that profile is transferred to the strip surface, wherein the metering roll is subjected to a force for bending the axis of the metering roll convexly toward the applicator roll, thereby to compensate for deflection of the metering roll that would otherwise tend to cause nonuniformity of applied coating weight across the width of the strip.
摘要:
An adhesive-spreading unit includes a set of rollers, each of which rotates at a higher speed than the preceding one, the first roller being in contact with a tank of adhesive and the last roller sliding in contact with a film on which the adhesive is to be deposited. The unit also includes devices for distancing the rollers from one another and bring them into contact when the film has been loaded into a machine, and a single actuator unit for moving the rollers. The actuator, during the first stage of its travel, brings a rubber-clad roller into contact with the first roller, and during the second part of its travel moves the two rollers to bring the rubber-covered roller into contact with a third roller, which transfers the adhesive to the film and vice versa.
摘要:
A roll support apparatus suitable for use in a roll coating machine is described. The roll support apparatus includes a roll support frame for rotatably supporting a roll coating head roll associated with the roll support frame, the roll support frame adapted for pivoting movement relative to a roll support frame mounting base. Furthermore, a roll carriage suitable for use in a roll coating machine is described. The roll carriage includes a roll support frame for rotatably supporting a respective roll and further includes a roll support frame mounting means for movably mounting the roll support frame so that it moves between a coating position and an idle position, wherein the roll support frame mounting means in use is mounted substantially above the respective roll to inhibit contamination of the roll support frame mounting means.
摘要:
A dosing device for the application of a coating mix (6) onto a running web, in particular a paper or paperboard web (1), which device comprises a rod (8) that is supported revolvingly over its entire length in a rod cradle (12), and a pressing device (13) acting on the rod cradle and producing a pressure of the rod onto the web (1) and onto the holding-on device (2, 17, 15) of the web, the rod (8) being provided with a wear resistant surface coating (15) with a hardness of about 10 to about 100 according to Shore A. The invention also relates to methods of using said rod, and to said revolving rod.