Paper-cutting crankshaft unit

Abstract

The invention discloses a paper-cutting crankshaft unit comprises two feed rollers and two discharge rollers. The feed rollers fit each other; the discharge rollers fit each other. A cutting mechanism is disposed between the feed rollers and the discharge rollers and comprises a cutting blade and a rubber roller disposed right under the cutting blade. The cutting blade is disposed at the lower end of a connecting bar; the connecting bar is in sleeving connection with a crankshaft through a bearing; the crankshaft is driven by a motor; the cutting blade is driven by the crankshaft and the connecting bar to move up and down. Compared with the prior art, the paper-cutting crankshaft unit has the advantages that cutting position of paper is accurate, noise is low, and work efficiency is high.

Description

technical field [0001] The invention relates to a crankshaft paper cutting device. Background technique [0002] Paper cutters are used to cut paper rolls into pieces. There are many kinds of paper cutters, such as the gate knife for cutting up and down, the swing knife for intermittent cutting, etc. Although the cutting quality of the paper edge is relatively poor Good, but the paper must be stopped, and the paper can continue to be fed after cutting. The paper feeding speed cannot be fast, and the production efficiency is very low; although the swinging knife can feed the paper continuously, the mechanical impact at the moment of cutting is relatively large, which may easily cause damage to the mechanical equipment. Damage and noise pollution, at the same time, the speed of paper feeding should not be too fast, and the length of paper sheets should not be too short, otherwise there is no time to stop the knife in the middle, resulting in inaccurate length of paper cutting....

AI Technical Summary

Problems solved by technology

[0011] However, when cutting paper, the cutting knife and the lower knife need to be fully matched together to complete the function of paper cutting. There are slight deviations, such as: the cutting knife is not rotated in place, the lower knife is not adjusted in place, and the edge of the cutting knife and the lower knife are not meshed. And so on will lead to paper cutting failure

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