A cutting device for pillow packaging machine

Abstract

The invention provides a cutting device for a pillow type packaging machine. The cutting device comprises an upper cutter rotating shaft, a supporting plate, a fixing bracket, an adjustment pressing plate, a lead screw nut, a lead screw and guide rods; bearing pedestals at the two ends of the upper cutter rotating shaft are connected with the supporting plate; one ends of the guide rods are connected with the bearing pedestals; the other ends of the guide rods are connected with the adjustment pressing plate; the lead screw nut is arranged at the middle part of the adjustment pressing plate; the lead screw nut is connected with the lead screw; and the lead screw is connected with the fixing bracket. The cutting device further comprises a pressure stabilizer; the pressure stabilizer is arranged between the fixing bracket and the adjustment pressing plate and comprises a balancing rotating arm, an elastic pressing rod and a balancing tension spring; the balancing rotating arm is pivotedon the adjustment pressing plate; the elastic pressing rod is obliquely connected between the fixing bracket and the left end of the upper part of the balancing rotating arm; and the balancing tensionspring is connected between the right end of the upper part of the balancing rotating arm and the adjustment pressing plate. Thus, pretightening force between the lead screw and the lead screw nut isconstant.

Description

technical field [0001] The invention relates to a cutting device for a pillow packaging machine, in particular to a cutting device for a pillow packaging machine. Background technique [0002] Pillow packaging machine is the latest automatic continuous shrink packaging equipment in China. It adopts ordinary electric furnace wire heating method, and has the characteristics of fast heating, good stability and low maintenance cost. [0003] The published patent CN201721549265.2 discloses a cutting device for a pillow packaging machine. Including the upper cutter shaft, the two ends of the upper cutter shaft are provided with bearing seats, the bearing seats are connected with the support plate through sliding grooves, and the upper cutter shaft between the two support plates is provided with an upper cutter; There is a lower cutter shaft, and the lower cutter shaft is also provided with a lower cutter; the end of one end of the upper cutter shaft is also provided with a drive ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cutting device for a pillow packaging machine, which solves the problem that the elastic force of the compression spring changes when the existing cutting device adjusts the screw pair, which causes the pre-tightening force between the screw and the screw nut. changing issues

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