Air intake unit for dust suction on sewing machines

Abstract

The invention provides an air inflow component of a sewing machine chipping suction device, and belongs to the technical field of sewing machines. The air inflow component of the sewing machine chipping suction device solves the problems that an existing chipping suction device is small in air inflow and poor in chipping suction effect. The air inflow component of the sewing machine chipping suction device is arranged on the cloth chipping suction device of a sewing machine. The cloth chipping suction device of the sewing machine comprises a material suction pipe. The air inflow component of the sewing machine chipping suction device comprises an air inflow support in a circular tube shape, wherein an air inflow channel used to generate negative pressure on the material suction pipe is arranged in the air inflow support. The air inflow component of the sewing machine chipping suction device further comprises an air replenishment piece in a circular tube shape, wherein two ends of the air replenishment piece are respectively communicated with the external world and the air inflow channel. Due to the fact that the air replenishment piece is arranged in the air inflow component of the sewing machine chipping suction device, air inflow of the sewing machine chipping suction device is increased, and chipping suction effects are good. Additionally, a silencer is arranged in the air replenishment piece, and therefore air inflow noise is low, and stable operation of the sewing machine chipping suction device is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of sewing machines, and relates to a sewing machine chip suction device, in particular to an air intake assembly of the sewing machine chip suction device. Background technique [0002] The sewing machine will also produce a lot of cloth scraps and thread scraps during the working process. If it is not handled in time, it will easily affect the normal operation of the sewing machine. In order to solve this problem, a device for disposing of debris can be provided on the sewing machine. [0003] For example, the Chinese utility model patent (authorized announcement date: 2012.9.12; authorized announcement number: CN 202430458 U) discloses a pneumatic dust collection device for industrial sewing machines, including a pneumatic cloth dust suction device connected to the lower end of the needle plate of the sewing machine , The pneumatic thread end suction device connected to the rear end of the suction pipe in...

AI Technical Summary

Problems solved by technology

[0005] However, in this dust collection device, the pneumatic cloth dust suction device takes in air through the air intake pipe, and its air intake is only supplied by the air intake pipe, and its air intake is relatively small, so that its dust suction effect is relatively poor.

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