Placket machine presser foot automatic adjustment mechanism and control method thereof

Abstract

The invention belongs to the technical field of placket machines, in particular to a placket machine presser foot automatic adjustment mechanism and a control method thereof. The placket machine presser foot automatic adjustment mechanism comprises a left presser foot arm and a right presser foot arm, as well as a left presser foot and a right presser foot which are arranged on the left presser foot arm and the right presser foot arm, wherein an adjustment mechanism body is arranged on a presser foot mounting frame, the left and right presser foot arms are connected with the adjustment mechanism body, the adjustment mechanism body acts for adjusting the space between the left and right presser foot arms to further adjust the space between the left and right presser feet, and the action of the adjustment mechanism body is electrically controlled through a sewing machine; the method comprises the steps of (1) left and right presser feet resetting; (2) adjusting the space between the left and right presser feet; (3) automatically pressing cloth; (4) automatically lifting the presser feet; the whole working process of the mechanism is that after the width of a placket is changed, a system calculates the angles of positive and negative rotation and rotating of a motor according to the width, and a screw rod is driven to rotate under the driving of the motor, so as to automatically adjust the space between the two presser feet and accurately control the space between the presser feet without performing manual adjustment like a traditional method, and the adjustment is simple and convenient.

Description

Technical field: [0001] The invention belongs to the technical field of placket machines, in particular to an automatic adjustment mechanism for the presser foot of a placket machine and a control method thereof. Background technique: [0002] The working process of the placket machine is that the large presser foot presses the fabric, and the sewing of the fabric is realized with the movement of the presser foot and the machine head. During the sewing process, the moving knife 1 cooperates with the fixed knife 2 to cut the fabric, such as figure 1 shown; in order to achieve the best sewing results, the large presser foot needs to press the fabric and keep a certain distance from the seam. [0003] The fly is divided into various widths according to the distance between the 3 blades of the fixed knife plate. When changing the specification of the fly, the distance between the two sewing lines changes. In order to obtain a good sewing effect, the presser arm 4 needs to be ad...

AI Technical Summary

Problems solved by technology

[0004] Due to the need for manual adjustment, the production efficiency is reduced, and the technical requirements for operators are high, and the labor intensity is high.

At the same time, the distance between the presser feet cannot be adjusted accurately, and the stability of the distance between the presser foot and the suture cannot be guaranteed, resulting in the stitches not meeting the requirements of uniform and beautiful appearance.

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