Armature opening and closing mechanism for paper transferring mechanism swinging downward

Abstract

The invention discloses an armature opening and closing mechanism for a paper transferring mechanism swinging downward. The armature opening and closing mechanism for the paper transferring mechanism swinging downward comprises a paper transferring hand, a driving mechanism, a driven mechanism and a stop motion mechanism. The paper transferring hand comprises an engaging shaft and an opening and closing armature ball connected with a driving end of the engaging shaft. A driving gear of the driving mechanism and a paper transferring armature control cam are fixedly installed on a driving shaft. A pair of swing rods of the driven mechanism is fixedly installed on a swing arm shaft, and end heads of the pair of swing rods are respectively arranged on periphery surfaces of the main curve and the conjugate curve of the paper transferring armature control cam in fit mode. A swing rod cam comprises a main body and a tail rod portion, wherein the swing rod cam is fixedly installed on an installing shaft, and a curved groove is arranged on the inner side face of the main body of the swing rod cam, so that the opening and closing armature ball is inserted in the curved groove in scrollable mode. A swing arm is fixedly installed on the swing arm shaft, and the end head of the swing arm is arranged on the periphery surface of the main body of the swing rod cam in fit mode. The stop motion mechanism comprises a protective air cylinder installed on the inner side face of a wallboard on a driving side and a stop block connected onto the end head of a piston rod of the protective air cylinder.

Description

technical field [0001] The invention relates to an opening and closing tooth mechanism for a bottom-swing type paper delivery mechanism. Background technique [0002] At present, there are three main types of paper transfer devices commonly used in offset printing machines: swing type, rotary type and transcendence type paper transfer devices. The function of the paper delivery device is to hold the accurately positioned paper on the paper delivery platen to the jaws, and transfer it to the paper delivery cylinder or impression cylinder to enter the roll printing. This way of paper delivery is called indirect paper delivery. It is to pass the paper from the paper feed plate to the paper transfer roller. After the paper is positioned at the front gauge of the paper feeding board, the paper is in a static state. In order to ensure the accuracy of overprinting, the paper feeding teeth of the paper feeding mechanism must also pick up the paper in an absolutely static state. F...

AI Technical Summary

Problems solved by technology

However, the existing stop mechanism is usually driven by a motor, a gear or an eccentric sleeve mounted on the rotation center of the groove cam to make the rotation center of the groove cam eccentric, so that the paper delivery tooth that is movably connected with the groove cam stops closing the teeth.

The structure of the stop mechanism is complicated, which in turn affects the smoothness of the action

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