Element head-forming device for continuous fastener stringer-manufacturing machine

Abstract

Provided is an element head-forming device for a continuous fastener stringer-manufacturing machine, the device being capable of detecting malfunctions with a sensor when press-forming the element material and stopping the continuous fastener stringer-manufacturing machine and of using a sensor with a short measurement distance. The element-forming device is configured so that when press-forming the head (WH) of an element material (WA) using a forming die (4) and a forming punch (5), the leg section (WH) of the element material (WA) is pressed against the forming die (4) by bringing a pressing punch (6), which is biased downward by a plate spring (7), into contact with the leg section (WH) and deforming the plate spring (7) upward. The element-forming device is configured so that: a sensor (20) is provided below the plate spring (7); the sensor (20) detects the distance between the sensor and the plate spring (7) in the vertical direction; and the continuous fastener stringer-manufacturing machine is stopped when a malfunction is detected as a result of the detected distance in the vertical direction differing from the normal distance in the vertical direction. Because the sensor (20) is provided below the plate spring (7), the distance between the sensor (20) and the plate spring (7) is reduced and a sensor with a short measurement distance can be used.

Description

technical field [0001] The present invention relates to a fastener element head forming device in a fastener element forming and inserting part of a zipper fastener stringer continuous manufacturing machine. The fastener element head forming device press-forms the head of a fastener element raw material to form a fastener element . Background technique [0002] Conventionally, as a fastener stringer continuous manufacturing machine, as disclosed in Patent Document 1, it is well known that it includes: an element forming and inserting part, and a metal wire for an element that intermittently transfers a metal wire for an element to the forming and inserting part. A conveyor, a fastener stringer supply device that intermittently feeds the fastener stringer toward the molding fitting portion by feeding out the fastener stringer string, and the like. [0003] The metal wire material for fastener elements is a metal wire material formed by passing a long metal wire material with...

AI Technical Summary

Problems solved by technology

[0018] However, in the above fastener element head forming device, the sensing rod vibrates due to inertia, so when the continuous fastener stringer belt manufacturing machine is operated at high speed, the sensing rod will vibrate and cause false sensing, so it is difficult to realize the continuous operation of the fastener stringer string. Speeding up of manufacturing machines

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