Button delivery rocker arm modification mechanism of button attaching machine tool

Abstract

A button delivery rocker arm modification mechanism of a button attaching machine tool comprises a stepping motor and a rocker arm, wherein the stepping motor is vertically installed on a pedestal. The mechanism is characterized in that a driving wheel is installed on a stepping motor output shaft, the driving wheel is connected with a driven wheel through a synchronous belt, a driven wheel output shaft is connected with a rocker arm rotating shaft, the rocker arm rotating shaft is installed inside a rocker arm rotating base, a sliding air cylinder is fixed on an air cylinder base, a sliding air cylinder threaded rod penetrates through the air cylinder base and is connected with a rocker arm rotating base installation portion, the air cylinder base is fixed at the upper end of a support, a linear guide rail is fixedly installed on the side face of the support below the air cylinder base, a sliding block is installed on the linear guide rail, and the inner side face of the rocker arm rotating base installation portion is fixed on the sliding block. According to the button delivery mechanism, the rocker arm is driven by the synchronous belt to conduct a reciprocating rotation motion, the stability, the precision, the flexibility, the performance and the service life of the button delivery mechanism are greatly improved, the whole mechanism is simple in structure and low in assembly difficulty and commissioning difficulty, the mechanical assembly efficiency is improved, and the production and maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the field of garment processing machinery, and in particular relates to an improved mechanism of a rocker arm used for sending buttons to a designated position in a button sewing machine. Background technique [0002] The button sewing machine is a special automatic sewing machine, which completes the sewing of buttons with regular shapes and the "nail, drop" sewing process. The most common is the disc-shaped two-hole or four-hole (also known as flat button) button. Buttoned staples. Through the replacement of various special button sewing machine accessories, one button sewing machine can sew all kinds of buttons such as handle buttons, metal buttons, snap buttons, foot-binding buttons, discipline buttons, etc. [0003] as attached figure 1 As shown in the figure, the working process of the button sewing machine is to press the placket material horizontally and straightly on the work surface, and then sew suitable buttons on...

AI Technical Summary

Problems solved by technology

The central rotating shaft of the rotating motor is directly installed in the shaft center hole of the rocker arm, and the rotating motor drives the rocker arm to rotate. However, due to the asymmetric structure of the rocker arm itself, the force on the rotating shaft of the rotating motor is uneven, and the main shaft is easy to break, which affects the rotation of the rotating motor. service life; the lifting motor then drives a threaded rod that is installed on the rotating shaft of the lifting motor and can rotate freely. The threaded rods are engaged with each other, and there are two guide posts at the same time. There is a gap between the guide posts and the threaded holes. When the lifting motor rotates forward, the threaded rod drives the moving block down, thereby driving the rotating motor and the rocker arm to slide down, and the lifting motor reverses. Rotation causes the rotating motor and the rocker arm to move upwards. This kind of transmission structure requires extremely high clearance fit precision. If the clearance is too large, the moving block is too heavy and easy to get stuck. If the clearance is too small, the threaded rod will not rotate and the lifting motor will not work directly. Instability, difficult maintenance, difficult to adapt to large-scale automated production

Images