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US 11,046,543 B2Granted
Web conveyance device with brake
AssigneeRiso Kagaku Corporation
InventorManabu Tachi
Life of this patent
Estimating the term…
Abstract
A conveyance device includes: a conveyance mechanism configured to unwind and convey a web from a web roll; a brake configured to brake rotation of the web roll; a controller configured to perform control of gradually reducing a torque of the brake and then turning off the brake in an operation of turning off the brake in a state where conveyance of the web by the conveyance mechanism is stopped and the brake is on with a tension applied to the web between the web roll and the conveyance mechanism.
Claims2
A conveyance device comprising:
- a conveyance mechanism configured to unwind and convey a web from a web roll;
- a brake configured to brake rotation of the web roll;
- and
- a controller configured to perform control of gradually reducing a torque of the brake and then turning off the brake in an operation of turning off the brake in a state where conveyance of the web by the conveyance mechanism is stopped and the brake is on with a tension applied to the web between the web roll and the conveyance mechanism,
- wherein the controller is configured to determine a reduction rate of the torque of the brake depending on at least one of a tension of the web at start of reduction of the torque of the brake, a type of the web, and a width of the web.
2 more elements
Dependencies are inferred from the claim text.