A sewing machine electric suction cylinder device

Abstract

The invention provides an electric suction cylinder device for a sewing machine, which belongs to the technical field of sewing machines. The utility model solves the problem that the existing electric air suction barrel device has poor heat dissipation effect on the air suction motor. The electric suction cylinder device includes a cylinder with a cavity inside and an upper cover assembly, the upper cover assembly includes an upper cover plate, a filter screen cover and a driver assembly, and the upper cover plate is provided with a suction pipe communicating with the above cavity , the driver assembly includes a motor base, a motor main body, a first impeller and a second impeller, the motor base has a first cavity and a second cavity that are separated from each other and are not communicated with each other, and the motor base is opened to communicate with the first cavity. The first air inlet, the first air outlet, the second air inlet and the second air outlet communicated with the second cavity, the first impeller and the second impeller are respectively located in the first cavity and the second cavity . The electric suction duct device has the advantages of good heat dissipation effect and good noise reduction effect.

Description

technical field [0001] The invention belongs to the technical field of sewing machines, and relates to an electric suction cylinder device for sewing machines. Background technique [0002] The suction device is one of the most important additional devices in the sewing machine, which is used to collect impurities such as thread ends and rags. At present, the air suction device is divided into two categories: one is a pneumatic air suction device coordinated with an external air source, and the other is an electric air suction device driven by a motor. The structure and installation of the pneumatic suction device are relatively complex and costly, and the suction power is greatly affected by the air source of the factory. The structure of the existing electric air suction device is relatively simple, the way of sucking air is vertical suction, the suction force is small, the air displacement is small, the temperature of the motor rises, and the suction efficiency is low. ...

AI Technical Summary

Problems solved by technology

But there are still some problems: the main reason is that the suction motor is installed in the cover. Although the suction motor is not working all the time, it will still generate a lot of heat during the period of starting work, because the space inside the cover is relatively narrow. , Closed and difficult air circulation leads to poor heat dissipation, which will also cause local instantaneous heating of the suction motor and affect its service life

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