Method for making spring bar and spring bar

Abstract

The invention discloses a method for making a spring bar and a spring bar. The making method comprises the following steps: providing a metal rod; forming a groove part in the middle part of the metalrod, so that the metal rod is divided into a first metal pipe and a second metal pipe which are connected through the groove part, wherein the ends, away from the groove part, of the first metal pipeand the second metal pipe are each provided with a first through hole, and the ends, close to the groove part, of the first metal pipe and the second metal pipe are each provided with a second through hole; forming a connecting piece for connecting the first metal pipe with the second metal pipe on the groove part and the second through holes; removing the groove part; and installing ejection pins in the first through hole of the first metal pipe and the first through hole of the second metal pipe respectively. In the above manner, the bending resistance of the spring bar can be strengthened,so that the accident of breaking the spring bar from a certain point in the middle part of the spring bar during installation or disassembly can be avoided.

Description

technical field [0001] The invention relates to the field of ear-growing technology, in particular to a method for making a growing ear and a growing ear. Background technique [0002] The raw ear is the connecting steel rod between the strap and the watch case of wearable devices such as watches, or the connecting steel rod between the sections of the metal strap of the watch. The needle at the end is used to connect the dial and the strap or adjust the length of the metal strap. For example, when the user needs to change the watch strap, the raw ear is first removed from the watch body, and then the raw ear is connected to the watch body again after a new watch strap is replaced. [0003] However, due to the relatively tight connection between the ordinary raw ear and wearable devices such as watches or bracelets, it is often necessary to use special tools for disassembly and installation, and it is necessary to apply a large force when installing or disassembling, but S...

AI Technical Summary

Problems solved by technology

[0003] However, due to the relatively tight connection between the ordinary raw ear and wearable devices such as watches or bracelets, it is often necessary to use special tools for disassembly and installation, and it is necessary to apply a large force when installing or disassembling, but Due to the hollow structure of the ear sleeve rod, it is easy to break off at a certain point of the ear sleeve rod during installation or disassembly, which is prone to accidents during installation or disassembly, and affects the progress of installation or disassembly

Images