摘要:
A system for controlling friction forces acting on a mailpiece in a mailpiece insertion module. The system includes at least one friction drive belt, a repositionable backstop assembly for arresting the motion of the envelope when disposed in a first position and permitting the conveyance along the feed path when disposed in a second position, an actuator operative to position the backstop assembly into the first and second positions and consuming energy to maintain the backstop assembly in the first position, a sensor for measuring the magnitude of energy consumed by the actuator; a means for developing a pressure differential across the envelope to urge the envelope into frictional engagement with the drive belts and for developing friction forces along a mating interface between the envelope and the friction drive surface, and a system controller, responsive to a sensed signal indicative of the energy consumed, for varying the magnitude of the pressure differential and the friction forces developed along the mating interface of the envelope.
摘要:
A rotatable pneumatic feeding head having a vacuum shoe with apertures for picking up an envelope from an envelope stack by negative air pressure. The feeding head has an outer cylinder with holes communicating with the apertures, and an inner cylinder with cutout regions operatively connected to a vacuum pump. The inner cylinder and the outer cylinder are rotated independently of each other such that when they are aligned, a negative pressure is created at the apertures through the cutout regions and the holes. When the inner cylinder and the outer cylinder are out of alignment, the negative pressure is cut off from the apertures. The vacuum shoe is removable so that it can be repaired or replaced when it is damaged or worn.
摘要:
An envelope hopper having a plurality of bottom rods to form a supporting surface for supporting a stack of envelopes and a paddle to push the envelopes towards an envelope feeder at the downstream end. A scrub wheel is rotatably mounted on a fixed, rotation axis on the paddle and is in contact with one of the bottom rods. The rotation axis of the scrub wheel is oriented at an angle relative to the rotation axis of the contacting rod, so that when the contacting rod rotates, it causes the scrub wheel to rotate, thereby producing a force on the paddle urging the paddle to move towards the downstream end. Preferably, the envelope hopper has a side rod on one side of the envelope stack, and the supporting surface is tilted from the horizontal surface, so that the envelopes are moved towards the side rod by gravity in order to register against the side rod. Preferably, the side rod also rotates in order to reduce the friction between the envelope stack and the side rod.
摘要:
An item transport system includes an input transport for receiving items along a first transport path, an angle transport for conveying the items along a second transport path disposed at an angle with respect to the first transport path, an alignment transport for conveying the items along a third transport path disposed at approximately 90 degrees to the first transport path, and an alignment surface for engaging the items while the items are conveyed in the alignment transport. The alignment transport may include an alignment nip comprising a driven element and an idler element for engaging opposing surfaces of the items, a manifold, a source providing pressurized gas to the manifold, and an orifice in the manifold proximate to the third transport path, wherein the idler element is disposed in the orifice.
摘要:
A system for controlling friction forces acting on a mailpiece in a mailpiece insertion module. The system includes, a backstop assembly for arresting the motion of the envelope when disposed in a first positon and permitting conveyance along the feed path when disposed in a second position, an actuator operative to position the backstop assembly into the first and second positions and consuming energy to maintain the backstop assembly in the first position, a sensor for acquirinq data indicative of the magnitude of energy consumed by the actuator; a means for developing a pressure differential across the envelope to urge the envelope into frictional engagement with a plurality of drive belts and for developing friction forces along a mating interface, and a system controller, for varying the magnitude of the pressure differential and the friction forces developed along the mating interface of the envelope.
摘要:
A system for detecting wear in a gripper chain of a chain conveyor is provided. The system includes an optical sensing system having a detection path located vertically beneath a portion of the gripper chain at a predetermined location. The detection path is located such that, when the gripper chain becomes elongated and droops a predetermined amount due to wear of the gripper chain, the sensing system senses the presence of the gripper chain in the detection path.
摘要:
An improved apparatus and method for cutting and processing sheets from a web of printed material comprising first and second side-by-side portions of sheets along a length of the web. A first transport is arranged to transport the web in a first horizontal direction. A web splitter splits portions of the web as they are transported on the first transport. An extended path transport, in line with the first transport, transports the second portion of the web in an extended path. A direct path transport, in line with the first transport, transports the first portion of the web on a more direct path. As a result of these different paths sheets within the first and second web portions are re-sequenced in a manner suitable for processing by downstream modules, such as a right angle turn module.
摘要:
A method and system for assessing when to change or sharpen a cutting blade of a paper cutter is presented. The cutting blade is operated using an electric motor that causes motion of the cutting blade, and the motion of the cutting blade causes the paper to be cut. Data is recorded about usage of the electric motor at least while cutting the paper. Based upon the data, a determination is made as to whether the cutting blade should be changed or sharpened.
摘要:
A method and apparatus are for decelerating a sheet of paper in a paper-cutting system. The sheet of paper is cut using a cutter, and the sheet is then accepted into a take-away nip. The take-away nip is operated at an initial rate in order to move the sheet of paper away from the cutter at an initial speed. The take-away nip is then operated at a rate decreasing to a final rate, in order to decelerate the sheet of paper to a final speed by the time the sheet of paper exits the take-away nip. The take-away nip is subsequently operated at the initial rate again, prior to accepting another sheet of paper at the initial speed.
摘要:
An item transport system includes an input transport for receiving items along a first transport path, an angle transport for conveying the items along a second transport path disposed at an angle with respect to the first transport path, an alignment transport for conveying the items along a third transport path disposed at approximately 90 degrees to the first transport path, and an alignment surface for engaging the items while the items are conveyed in the alignment transport. The alignment transport may include an alignment nip comprising a driven element and an idler element for engaging opposing surfaces of the items, a manifold, a source providing pressurized gas to the manifold, and an orifice in the manifold proximate to the third transport path, wherein the idler element is disposed in the orifice.