Balanced lower knife holder for a trimming machine

Abstract

The utility model belongs to sewing equipment technical field, specifically is a kind of balance type lower cutter frame of mouth closing machine, including head, upper cutter, middle cutter, lower cutter are equipped on head, head assembly driving shaft, cloth feeding shaft, lifting tooth shaft, driving shaft is rotated with cloth feeding shaft and lifting tooth shaft by eccentric connecting rod mechanism, first connecting rod mechanism is equipped between lifting tooth shaft and lower shaft, second connecting rod mechanism is equipped between lower shaft and lower cutter seat to control lower cutter cutting, lower shaft and head end spring abut lower cutter seat, cloth feeding mechanism is equipped in head, workbench surface is equipped with distributed tongue to guide cloth layering, the utility model ensures that lower cutter movement track and middle cutter blade are parallel, make contact stress evenly distribute, significantly reduce wear rate, effectively promote tool service life, solve the problem of rapid wear caused by uneven force on blade of traditional mouth closing machine, improve cutting quality stability and equipment reliability.

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