Constant tension mechanism of expressage bag making machine

Abstract

The invention provides a constant tension mechanism of an expressage bag making machine. The constant tension mechanism is arranged in a former process of a first paper cutting mechanism of the bag making machine and comprises swing arms, swing rollers, angular displacement sensors, air cylinder devices and joint bearings; and the two swing arms are oppositely arranged in a rack, the swing roller is connected to the lower portion of the part between the two swing arms, one end of each angular displacement sensor and one end of each air cylinder device are connected to the middle portions of the swing arms, one ends of the air cylinder devices are connected with the swing arms through the joint bearings, and the other ends of the air cylinder devices and the other ends of the angular displacement sensors are fixed to the rack. By means of the constant tension mechanism of the expressage bag making machine, it can be guaranteed that paper cannot be broken in the running process; the angular displacement sensors are used for detecting the angle of the swing roller, paper breakage can be caused if the angle is too large or too small, and the needed angle is achieved by adjusting the position of the swing roller through air cylinders.

Description

technical field [0001] The invention relates to a constant tension mechanism of an express bag making machine, which belongs to the technical field of machinery. Background technique [0002] In the existing express bag making machine, the process of breaking the paper often occurs. Therefore, the technical problems to be solved in the prior art are: 1. When cutting out the shape at one time, the delivery of the paper should be guaranteed, that is, to ensure that the paper will not be broken after cutting; Contents of the invention [0003] The invention provides a constant tension mechanism of express bag making machine, which can solve the above-mentioned defects. Before paper cutting, the constant tension mechanism is used to put the paper at a right angle, so that the force on the paper at the same cutting line is uniform. , that is, no fracture occurs. [0004] In order to solve the above technical problems, the present invention provides the following technical sol...

AI Technical Summary

Problems solved by technology

Therefore, the technical problems to be solved in the prior art are: 1. To ensure the delivery of the paper while cutting out the shape at one time, that is, to ensure that it will not be broken after cutting;

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