Sewing machine

 

Function and type:
Sewing machines have various functions, for example, they can be used for seaming, rope twining, 3D embroidery, decoration line etc.
Compared with industrial sewing machines, family-operated sewing machines are light, could replace sewing needles, change to nail catchers, overlock etc. This kind of machine is mainly for family use. Therefore, it has multiple functions. It has slower motor rotation than the industrial sewing machine.

 

    • The industrial sewing machines have diversified settings according to purpose of use in terms of types, such as 3-needle and 5-thread flat-seam machines, 4-needle and 6-thread double-cutting joint – seam machines, vertical 3-needle and 5-thread double-face sewing machines, 3-needle and 5-thread collar rolling machines etc. They can be used for different parts of garments, such as collar, muffs etc. Besides, more needles mean more threads and more time to thread. However, they can manufacture patterns simultaneously, so we have more options.

     

Principle:
In order for an ordinary sewing machine to work, both the upper and the bottom sides have to be operated simultaneously, as the sewing machine only have an upper needle, on the contrary, hand sewing could fix the cloth through one thread. So this type of machine could fix only when both the upper and bottom sides are combined. The needle brings the upper thread to the back of the cloth, and combines with the bottom thread after circling in the bottom bobbin case. In this way, the cloth is fixed.

   

Old-fashioned sewing machine: this type of machine is a family operated sewing machine in the early times that do not use electronic power, on the contrary, its working principle is that the feet-driven pedal at the bottom drives the machine through belt.

Photo: http://blog.udn.com/julian2021/7609979

Sewing machine for industrial use: the photo displays a sewing machine today for industrial use, whose motor operates with the electricity. It is fast in sewing and seaming.

Photo: http://www.ming-jang.com/en_newsdetail.asp?proid=34