Sewing scissors and manufacturing method thereof

Abstract

The invention discloses a pair of tailor scissors and a manufacturing method thereof. The structure of the tailor scissors is characterized in that: two mutually corresponding fine-casting cutter bodies are assembled by screw holes arranged at the middle parts of the cutter bodies, and then matched with a thread assembly; blades are arranged on the cutting edge positions of the fine-casting cutter bodies; the manufacturing process comprises the following steps: finely die-casting a whole scissor, cropping cutting edge steel, welding the cutter bodies with the edge steel, heat treatment, grinding inner cutting edges, finely grinding small outer cutting edges, plastic dipping, and assembling. Compared with the prior art, the tailor scissors of the invention has the following beneficial effects: the integral forming technique of a handle and an outer large bevel edge is adopted to the scissors, which reduces the loss of a disc and greatly shortens production period and lowers production cost; the head of the scissor is made from two-layer composite material; a copper plate is clamped between the two layers of the composite material; after high-temperature welding is finished, the blade part is shaped like a golden silk thread; the blade is made from composite-layer tool steel, therefore, the cutting edges are not easily collapsed or rolled up; the scissors are sharp and durable with strengthened fatigue resistance; the cutting edge is not limited by welding technique, therefore, various special steel material can be replaced at will.

Description

Technical field: [0001] The invention relates to a tailor's scissors and a manufacturing method thereof, in particular to a tailor's scissors with simplified and optimized processing procedures, improved production efficiency, and a compact and consistent overall structure and a manufacturing method thereof. Background technique: [0002] In the existing technology, tailoring scissors are generally produced in three ways, which are steel-embedded forging process, precision casting molding process, and explosive composite material process. Substrate and blade steel point steel forging → butt welding of scissor handle and substrate → grinding slag → punching → heat treatment → grinding outer opening → grinding inner opening → fine grinding inner opening → fine grinding small outer opening → painting → assembly. Among them, precision casting molding process: precision casting→punching→heat treatment→grinding the outer opening→grinding the inner opening→finishing the small outer...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the inadequacies of the existing technology, solve the complicated processing procedures in the past, save materials, and improve production efficiency

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