KR20070016328A - Scissors and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a pair of scissors and a method for manufacturing the same, In a pair of scissors, each of which has a handle, and a pair of scissors having a hinge to rotatably couple the pair of scissors blades attached to the handle, The handle is a silver alloy and the shear blades are made of carbon steel. In addition, the present invention is a scissors blade forming step of forming a scissors blade having a gripping portion for easy processing, the basic polishing step to form the shape of the scissors blade by grinding the blade, and after heat treatment and deep cooling treatment, precisely processed scissors A processing step of making a specific shape of the blade, a heat treatment step of strengthening durability by heat-treating the shear blades, a blade processing step of improving cutting force by polishing the heat-treated shear blades, and cutting a grip part of the shear blade A gripping part removing step for removing the gripping part, and a gripping step for splicing the silver alloy knob through pure silver on the joint surface of the scissors blade exposed by the gripping part; It is composed of a gloss stage. According to the present invention configured as described above, the handle portion is made of a silver alloy and the shear blade portion is made of a material of carbon steel, thereby providing an antimicrobial effect while maintaining cutting force.

Description

Hairdressing scissors and its manufacturing method {Scissors and manufacturing method

1 is a flowchart illustrating a manufacturing process of a conventional scissors.

2 is an exploded perspective view of the cosmetic scissors according to the present invention.

Figure 3 is a flow chart of one embodiment of the manufacturing process of the scissors according to the present invention.

4 is another flow chart of the manufacturing process of the scissors according to the present invention.

* Description of the symbols for the main parts of the drawings *

11, 12: 21, 22 scissors blade: silver alloy handle

30: coupling member

The present invention relates to a cosmetic scissors and a method of manufacturing the same, in particular to the antimicrobial properties of the handle portion using a silver alloy, and to a cosmetic scissors and a method of manufacturing the same that can facilitate the bonding of the silver alloy and the blade portion. will be.

In general, the hairdressing scissors are produced separately from the blade and the handle using carbon steel, and then bonded to the scissors blade and the handle through arc welding, described in detail with reference to the accompanying drawings, the conventional method for manufacturing the scissors Same as

1 is a flowchart illustrating a manufacturing process of conventional scissors.

Referring to this, first cut the carbon steel sheet in the shape of the scissors blade as in step S11.

The scissors blade is not standing, the coupling hole for joining a pair of scissors blade is provided.

Since the carbon steel is a material having excellent hardness, corrosion resistance, cutting force, and a sense of cutting, which are characteristics that beauty scissors should have, it is currently used as a material of beauty scissors.

Next, the carbon steel handle is manufactured by casting as in step S12.

The scissors blade and the carbon steel handle both use carbon steel of the same material.

Then, weld the scissors blade and the carbon steel handle produced in step S13, respectively.

The scissors blade and the carbon steel handle have the same melting point with the same material, and can be easily welded by arc welding.

At this time, the material of the blade blade and the carbon steel handle is different, if the melting point is significantly different from each other, the melting point is relatively low melting first, it is impossible to weld while maintaining the desired shape.

Next, as in step S14, the shape of the basic scissors is formed by grinding around the welded portion.

Then, heat treatment and deep cooling treatment as in step S15, and precision processing while paying attention not to heat the scissors as in step S16.

At this time, the precision machining is a part of the scissors to stand, the overall shape is processed so as to approximate the shape of the scissors.

Next, as in step S17, a special heat treatment is performed to enhance the durability of the scissors.

Next, as in step S18, precision cutting is performed to improve cutting force.

Thereafter, as in step S19, the entire scissors are polished to complete the manufacturing process.

As described above, in the conventional method of manufacturing scissors, a handle and a blade blade are manufactured, respectively, and then welded, and the scissors are manufactured by performing a method such as polishing and heat treatment.

Such conventional hairdressing scissors can not perform coating of other functionalities because it has to maintain a high cutting force due to its characteristics, and can be managed unsanitarily because it is used for a long time without disinfection.

In particular, the hands of the hairdressers with a lot of use of beauty scissors had a problem that is susceptible to bacteria.

In view of the above problems, the present invention has an object to provide a pair of scissors with antibacterial.

In addition, an object of the present invention is to provide a method of manufacturing a cosmetic scissors that can be welded more easily to the handle and carbon steel scissors blade is given antibacterial.

The present invention for achieving the above object is attached to the handle to each of the pair of scissors blade, and in the cosmetic scissors having a hinge for rotatably coupling a pair of scissors blade is attached to the handle, the handle Is a silver alloy and the scissors blade is composed of carbon steel.

In addition, the present invention is a scissors blade forming step of forming a scissors blade having a gripping portion for easy processing, the basic polishing step to form the shape of the scissors blade by grinding the scissors blade, after heat treatment and deep cooling treatment, by precision processing A processing step of making a specific shape of the scissors blade, a heat treatment step of heat-treating the shear blades to enhance durability, a blade processing step of improving cutting force by grinding the heat-treated shear blades, and cutting the grip portion of the shear blades A gripping part removing step of removing the gripping part, and a gripping step of joining the silver alloy knob through pure silver to the joint surface of the scissor blade exposed by the gripping part; It includes a gloss step to produce.

When described in detail with reference to the accompanying drawings, the present invention configured as described above are as follows.

2 is an exploded perspective view of the cosmetic scissors according to the present invention.

Referring to this, the cosmetic scissors according to the present invention is a carbon steel scissors blades (11, 12), silver alloy handles (21, 22) bonded to the scissors blades (11, 12), and the pair of scissors blades And a coupling member 30 rotatably coupling the central portion of the handle.

The material of the silver alloy handles 21 and 22 is an alloy of 79 to 81 wt% silver, 11.5 to 12.5 wt% copper, 1.8 to 2.2 wt% zinc, 4.5 to 5.5 wt% nickel, and 0.8 to 1.2 wt% palladium. The composition ratio is 80wt% silver, 12wt% copper, 2wt% zinc, 5wt% nickel and 1wt% palladium.

Such a composition ratio gives high antibacterial property, and is intended to maintain appropriate strength and corrosion resistance.

In general, silver (Ag) has antibacterial properties but is weak in strength, low in corrosion resistance, and has a low melting point, which makes welding very difficult.

Embodiments of a manufacturing method for manufacturing cosmetic scissors using the silver alloy handles 21 and 22 having the above characteristics will be described.

Example 1

Figure 3 is a flow chart of one embodiment of the manufacturing process of the scissors according to the present invention.

Referring to this, first prepare a carbon steel sheet as in step S301, and cut the shear blades (11, 12) by wire cut the prepared carbon steel sheet (wire cut).

Next, in step S302, the temporary handle is molded using carbon steel.

Next, in step S303, the shear blades 11 and 12 and the temporary handle are arc welded.

The reason for bonding the temporary handles to the shear blades 11 and 12 in this manner is to facilitate the processing of the shear blades 11 and 12, such as heat treatment and polishing.

Then, in step S304 to polish the scissors blades (11, 12) to which the temporary handle is bonded to form a scissors.

At this time, the temporary handle portion does not have to be polished.

Then, heat treatment and deep cooling treatment are performed in step S305, and the scissor blades 11 and 12 are precisely processed in step S306.

By such precision processing, the shape of the scissors blades 11 and 12 is close to the shape of the blade of the completed scissors.

Then, in step S307 to perform a heat treatment to enhance the durability of the scissors.

Next, in step S308 by cutting the blades (11, 12) to raise the blade, the cutting force is improved.

Next, in step S309, the shear blades 11 and 12 are separated from the temporary handle.

At this time, the method of separating the shear blades (11, 12) and the temporary handle can be used to cut the welding portion.

As described above, the silver alloy handles 21 and 22 are manufactured by centrifugal casting as in the step S310 in the state of preparing the prepared shear blades 11 and 12.

Next, in step S311, the silver alloy handles 21 and 22 are welded to the scissors blades 11 and 12, respectively.

At this time, the silver alloy handles 21 and 22 and the scissors blades 11 and 12 are different materials, and since the melting points are significantly different, the silver alloy handles 21 and 22 and the scissors blades 11 and 12 are joined by arc welding. Can not.

In view of this, in the present invention, the scissors blades 11 and 12 are heated above the melting point of the scissors blades, and pure silver is melted on the heated joint surface. At the same time, the silver alloy handles 21 and 22 are heated to near the melting point, and then the joining surfaces of the shear blades 11 and 12 are made of pure silver melted at the joining surfaces of the shear blades 11 and 12. The silver alloy handles 21 and 22 to each other.

That is, the melting point of the carbon steel, which is the material of the shear blades 11 and 12, depends on the carbon content, but is 1,540 ° C. in the case of the 400-based carbon steel mainly used as the material of the shear blades. The melting point of the silver alloy, which is a material of 22), is about 700 ° C., which cannot be welded by ordinary arc welding. The heated blades 11, 12 are heated through pure silver and the blades 11, 12 are heated. The silver alloy knobs 21 and 22 are bonded to the joining surface of the?

Conventionally, since scissors are manufactured by welding, heat treatment, and polishing, metals exhibiting functionalities such as silver cannot be used as materials. Especially, in case of coating, the cutting force is lowered, so that other than the basic functions of scissors It is very difficult to impart a function, in the present invention, it is possible to join the scissors blades (11, 12) and the silver alloy handles (21, 22), and to change the order of the process appropriately to give antibacterial to the cosmetic scissors. Can be.

Next, in step S312, the scissors blades 11 and 12 and the silver alloy handles 21 and 22 are polished and combined using the coupling member 30, thereby producing a cosmetic scissors having antimicrobial properties.

Example 2

4 is another embodiment of the manufacturing process of the scissors according to the present invention.

Referring to this, another embodiment of the cosmetic scissors manufacturing process according to the present invention is an example that does not use a temporary handle bonded to the scissors blade.

First, in step S401 cut the shear blades (11, 12) by cutting the prepared carbon steel sheet.

At this time, the blade blades 11 and 12 have a grip portion extending from the portion where the silver alloy handle is to be joined, which processes the blade blades 11 and 12 without welding the temporary handle to the blade blades 11 and 12. It is intended to be easy to do.

Next, in step S402, the scissors blades 11 and 12 are polished to form the scissors.

At this time, the gripping portion, which is an extended portion of the joint surface of the shear blades 11 and 12, does not need to be polished.

Next, in step S403, heat treatment and deep cooling are performed, and in step S404, the scissors blades 11 and 12 are precisely processed.

By such precision processing, the shape of the scissors blades 11 and 12 is close to the shape of the blade of the completed scissors.

Next, in step S405, heat treatment is performed to enhance the durability of the scissors.

Then, in step S406 by cutting the blades (11, 12) to raise the blade, thereby improving the cutting force.

Next, in step S407, the gripping portion is cut to expose the joint surface with the handles of the scissors blades 11 and 12.

As described above, the silver alloy handles 21 and 22 are manufactured through centrifugal casting as in the step S408 in the state of preparing the prepared shear blades 11 and 12.

Next, in step S409, the scissors blades 11 and 12 are heated above the melting point of the scissors blades, and pure silver is melted on the heated joint surface. At the same time, the silver alloy handles 21 and 22 are heated to near the melting point, and then the joining surfaces of the shear blades 11 and 12 are made of pure silver melted at the joining surfaces of the shear blades 11 and 12. The silver alloy handles 21 and 22 to each other.

Then, in step S410 by polishing the shear blades (11, 12) and the silver alloy handles (21, 22), by using a coupling member 30, by producing a cosmetic scissors having antibacterial.

As described above, when the silver alloy knobs 21 and 22 are bonded to the shear blades 11 and 12 before the cutting blades 11 and 12 are processed as in the prior art, the silver alloy handles 21 may be processed in a heat treatment process. 21, 22) is melted, so the shear blades (11, 12) are completely processed and joined.

The present invention has been shown and described with reference to certain preferred embodiments, but the present invention is not limited to the above-described embodiments and has ordinary skill in the art to which the present invention pertains without departing from the concept of the present invention. Various changes and modifications are possible by the user.

As described above, the cosmetic scissors according to the present invention have a handle portion made of silver alloy, and the blade portion is made of a material of carbon steel, thereby providing an antimicrobial effect while maintaining cutting force.

In addition, the hairdressing scissors according to the present invention can be bonded to the scissors blade and the handle of a material having a very large difference in melting point with each other, which can not be welded by a general welding method, imparting antibacterial power to the hairdressing scissors, user and There is an effect that can provide a more hygienic environment to customers.

Claims (6)

In the hairdressing scissors having a hinge attached to each of the pair of scissors blades, and a hinge for rotatably coupling the pair of scissors blades attached to the handle, The handle is a silver alloy, the scissors blade is characterized in that the carbon steel scissors. The method of claim 1, wherein the silver alloy handle is 79 to 81wt% silver, 11.5 to 12.5wt% copper, 1.8 to 2.2wt% zinc, 4.5 to 5.5wt% nickel, 0.8 to 1.2wt% palladium, characterized in that the alloy Hairdressing scissors. A scissor blade forming step of forming a scissor blade having a gripping portion to facilitate processing; A basic polishing step of polishing the scissors blade to take the form of a scissors blade; After the heat treatment and deep cooling treatment, the processing step to make a specific shape of the scissors blade by precision processing; A heat treatment step of strengthening durability by heat-treating the shear blades; A blade processing step of improving cutting force by grinding the heat-treated shear blades; A gripper removing step of cutting and removing the gripper of the scissors blade; A handle joining step of joining the silver alloy handle through pure silver via the bonding surface of the scissors blade exposed by the removal of the grip portion; And Cosmetic scissors manufacturing method comprising a glossy step of shining the scissors blade and the handle to shine. The method of claim 3, wherein the silver alloy handle is 79 to 81wt% silver, 11.5 to 12.5wt% copper, 1.8 to 2.2wt% zinc, 4.5 to 5.5wt% nickel, 0.8 to 1.2wt% palladium, characterized in that the alloy How to make beauty scissors. According to claim 3, The shear blade forming step is a method of manufacturing a pair of scissors, characterized in that the cutting blade and the gripping parts separately manufactured after bonding, or cut together to form a gripping portion extending from the scissors blade when cutting the blade. . 4. The handle joining step of claim 3, wherein the step of joining the handle heats the shear blade above the melting point of the shear blade, melts pure silver on the heated joint surface, and joins the silver alloy handle heated to the vicinity of the melting point to the shear blade. Cosmetic scissors manufacturing method characterized in that.

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