A member that exerts pressure on the surface of the seam material. Presser foot is divided into lockstitch machine presser foot, overlock presser foot, and special machine presser foot according to its sewing machine performance. The presser foot is divided into ordinary presser foot and special presser foot according to its function. There are many types of special presser feet, such as hemming presser feet, feeding presser feet, double-needle presser feet, etc.
Pressing mechanism
A mechanism that exerts pressure on the surface of the sewing material. It is classified as:
Pressing lever mechanism: There is a mechanism that the presser foot exerts pressure on the surface of the sewing material.
Alternate pressing rod mechanism: There are two presser feet alternately pressing the material on the surface of the sewing material. One is a presser foot that does not move, and the other is a presser foot that moves with the material or needle.
Roller pressing mechanism: a pressing mechanism with one or two rollers that exert pressure on the surface of the sewing material.
Presser foot lift mechanism
A mechanism for raising and releasing the pressure of the presser foot on the sewing material. Its categories are:
Carrying mechanism: a mechanism that lifts and releases the pressure of the presser foot by using the presser foot wrench with the hand plate.
Knee-lifting and presser foot mechanism: a mechanism that uses the knee to lift and release the presser foot pressure through the lever system.
Foot-lifting presser foot mechanism: operated with a foot pedal, the presser foot pressure mechanism is lifted and released through a lever system.
Electric, pneumatic or hydraulic lifting presser foot mechanism: a mechanism that lifts and relieves the presser foot pressure by electromagnetic force, pneumatic pressure or hydraulic pressure.
Automatically lift the presser foot mechanism: after the sewing is completed, the presser foot automatically lifts the presser foot according to the control sequence.
