Abstract:
In a preferred embodiment of the invention a conveyor means delivers sheet material to a discharge station adjacent to and above a platform on which the sheets are to be stacked. The conveyor means includes a transportation conveyor such as a shingling conveyor, a feed out roll means below the sheet material and a gate pull roll means above the sheet material. The platform means may be a roller type conveyor disposed at right angles to the shingling conveyor. Overhead pull belt means above the platform engages the upper side of sheet material issuing from the discharge station to pull the sheet material into stacked position. The pull belt means is operable to establish contact with the upper side of the sheet material before an underside of the sheet material terminates contact with the feed roll. The pull belt means maintains contact with the upper side of the sheet material until the material is in the stack to prevent any free flight of the material from the discharge station to the stack. Means are provided for sensing the stack height on the platform and a gate means at the discharge station is operative to interrupt flow of sheet material from the discharge station to the platform in response to a signal from the stack height sensing means. The last sheet out of the discharge station to complete a stack is also sensed. In response to a signal from the last sheet out sensor the overhead pull belt means is lifted, a back stop is retracted, and the roller conveyor is energized to move the stack out of the stack area. The removal of the stack from the stack area is sensed to resume normal operations.
Abstract:
Apparatus for receiving single or multiple bundles of corrugated board blanks from a corrugator in which the bundles are automatically picked up and in the preferred embodiment stacked on a cart, with alternate bundles being placed upside down with respect to the orientation of their delivery to the mechanism. The disclosed mechanism is capable of handling full, corrugator width, single bundles of board or a plurality of less wide bundles at one time, thus obviating the necessity of having extremely high speed handling equipment or large off-bearer crews to handle the production from a corrugator. The bundles themselves, when stacked on the cart or truck, are placed in striated form for ease of unloading at another position.
Abstract:
Apparatus for receiving single or multiple bundles of corrugated board blanks from a corrugator in which the bundles are automatically picked up and in the preferred embodiment stacked on a cart, with alternate bundles being placed upside down with respect to the orientation of their delivery to the mechanism. The disclosed mechanism is capable of handling full, corrugator width, single bundles of board or a plurality of less wide bundles at one time, thus obviating the necessity of having extremely high speed handling equipment or large off-bearer crews to handle the production from a corrugator. The bundles themselves, when stacked on the cart or truck, are placed in striated form for ease of unloading at another position.
Abstract:
Apparatus for receiving single or multiple bundles of corrugated board blanks from a corrugator in which the bundles are automatically picked up and in the preferred embodiment stacked on a cart, with alternate bundles being placed upside down with respect to the orientation of their delivery to the mechanism. The disclosed mechanism is capable of handling full, corrugator width, single bundles of board or a plurality of less wide bundles at one time, thus obviating the necessity of having extremely high speed handling equipment or large off-bearer crews to handle the production from a corrugator. The bundles themselves, when stacked on the cart or truck, are placed in striated form for ease of unloading at another position.