Paper lapping control device

Abstract

A paper lapping control device comprises a positioning plate, at least one rotary type compressed gas valve mounted above the positioning plate and rotary type vacuum valves disposed below the positioning plate. Each rotary type compressed gas valve comprises a valve body and a valve core penetratingly the valve body, a gas inlet and gas outlets facing the positioning plate are arranged on the valve body, and the valve core rotates relative to the valve body so as to control communication and off of the gas inlet and the gas outlets. Each rotary type vacuum valve comprises a vacuum valve body and a vacuum valve core, the vacuum valve body is provided with a gas discharge hole and a gas suction hole facing the positioning plate, and the vacuum valve core rotates relative to the vacuum valve body so as to control communication and off of the gas discharge hole and the gas suction hole. When the tail of paper passes among the positioning plate and the rotary type compressed gas valves, the rotary type compressed gas valves blow the tail of the paper while the rotary type vacuum valves suck the tail of the paper via the positioning plate, and accordingly the tail of the paper is attached onto the positioning plate for head coverage of subsequent paper.

Description

technical field [0001] The invention relates to a mechanical control device, in particular to a paper overlapping control device during transmission. Background technique [0002] As we all know, after the paper is cut and shaped, some papers only need to be simply stacked together, and some papers with high requirements need to be overlapped end to end. Traditional paper lapping control devices often only have a vacuum suction cup connected to a vacuum pump. When the tail of the previous paper passes above the suction cup, the vacuum suction cup is activated by a solenoid valve, and the leaping paper tail is instantly absorbed by the vacuum. , and then wait for the head of the next paper to cover the tail of the previous paper, thus completing the end-to-end overlapping of adjacent papers; then the electromagnetic valve controls the suction cup to stop sucking, and the two papers are transported through the conveyor belt until The tail of the last piece of paper passes abo...

AI Technical Summary

Problems solved by technology

[0003] However, during the movement of the paper, air lift will be generated and the head and tail will be tilted irregularly. If only the suction cup is used to suck down the paper tail that jumps over the top, sometimes the tilted paper tail will not be absorbed, and the head and tail of the adjacent paper will There will be a collision, which will block the conveying paper, and the equipment will not be able to produce normally

In addition, relying on the solenoid valve to control the suction cup, especially in the high-speed switching open and close state, it is easy to burn the solenoid valve drive coil, greatly shorten the service life of the valve body, and affect normal production

Images