Length-adjustable stamping knife mechanism in zipper sizing device

• Main Authors: MIAO HONGYI, FANG XIJIN, XU ZHIYONG, MIAO QIFU
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The utility model discloses a length-adjustable stamping knife mechanism in a zipper sizing device. The stamping knife comprises a stamping knife body, wherein the stamping knife body is of a rectangular plate body structure; the lower end of the stamping knife body is a stamping knife edge; grooves are respectively formed in the left side and the right side of the stamping knife body; auxiliary stamping knives are respectively arranged in the open grooves; the auxiliary stamping knife is in a long strip shape. One side, close to the stamping knife body, of the auxiliary stamping knife is hinged with the stamping knife body; the auxiliary stamping knife can rotate downwards to be moved out of the open groove. A strong tension spring is also arranged in the open groove; one end of the strong tension spring is connected with the auxiliary stamping knife; the other end of the strong tension spring is connected with the stamping knife body; the auxiliary stamping knife is restrained in theopen groove by tension o