Negative-pressure type flattening and conveying mechanism

Abstract

The invention discloses a negative-pressure type flattening and conveying mechanism comprising two conveying belts arranged in parallel in a spaced manner. A roller is arranged in front of the paper feeding ends of the conveying belts; an air cavity with one end provided with an opening is formed in the center portion of the roller; a plurality of rows of air suction holes are formed in the surface of the roller at intervals and communicate with the air cavity; a paper pressing plate is arranged above the roller and hinged and supported to a supporting shaft; the outer circle face of the roller is arranged into a spiral face; each conveying belt comprises a conveying shaft, a conveying belt wheel fixedly connected to the conveying shaft, and flat conveying adhesive tape tensioned on the conveying belt wheel; the opening end of the air cavity is connected with a rotating connector which is connected with a suction fan in a communicating manner through an air guiding pipe; a ball valve is arranged between the rotating connector and the suction fan; and the outer circle face of the roller is arranged into the spiral face. The negative-pressure type flattening and conveying mechanism is good in paper feeding stability, free of paper jam and convenient to use.

Description

technical field [0001] The invention relates to a carton forming machine, in particular to a device for correcting the position of a cardboard in the process of making a carton by a folder gluer. Background technique [0002] In the box folder folder gluer, the cardboard is sent to each process of box making through a multi-stage conveying device. In order to ensure that the cartons finally produced by the box folder folder folder have straight corners and neat seams, the forming quality is ensured during work. The position of the longitudinal edge of the cardboard conveyed to each process is correct and not skewed, and the position of the transverse edge is very important. Therefore, it is necessary to correct the position of the cardboard after die-cutting before entering the conveying device at all levels. In the current box-folding machine, the correction methods for cardboard are nothing more than the following methods: one way is to use the guide rail type conveying an...

AI Technical Summary

Problems solved by technology

In the current box-folding machine, the correction methods for cardboard are nothing more than the following methods: one way is to use the guide rail type conveying and correcting device for correcting and conveying, which is composed of two parallel guide rails installed on the left and right sides of the frame. The conveying track realizes the correction of the longitudinal position of the cardboard in the process of being transported. This form of correction method, in the application process, especially in the process of bottom hooking, the cardboard is deformed and the cardboard is uneven and the corners are warped. And other phenomena, it will cause the work of paper feeding is not smooth, and bring considerable trouble to the production, as follows: When the cardboard is not smooth, the contact area between the conveying flat tape and the cardboard is reduced, so that the gap between the conveying tape and the cardboard is reduced. The frictional force decreases, causing the conveying force to decrease, resulting in insufficient clamping force of the conveying flat belt to the cardboard, and paper jams often occur during the working process, resulting in abnormal shutdown and cleaning during production, and correspondingly, the production efficiency is also affected. Serious impact, obviously there are defects of poor paper feeding stability, easy jamming of paper and inconvenient use; when the corners of the cardboard are warped, the cardboard may not enter the conveying device at all, but directly jammed at the paper inlet end of the conveying device , also has the disadvantages of poor paper feeding stability, easy paper jamming, and inconvenient use

Another way is to use a spring-type conveying correction device, which uses an elastic baffle equipped with a set of spring sheets and a fixed baffle parallel to the paper guide rail, and presses the cardboard against the other side by the elastic force of the spring. Carry out conveying correction on the benchmark fixed baffle. This form of correction method not only has high requirements on paper, but also causes cardboard deformation, corner warping and unevenness during the working process, especially in the process after hooking the bottom. , also has the defects of poor paper feeding stability and easy jamming of the guide rail conveying and correcting device

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