KR910009861B1 - Silver spoon make method - Google Patents

Silver spoon make method Download PDF

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Publication number
KR910009861B1
KR910009861B1 KR1019890014025A KR890014025A KR910009861B1 KR 910009861 B1 KR910009861 B1 KR 910009861B1 KR 1019890014025 A KR1019890014025 A KR 1019890014025A KR 890014025 A KR890014025 A KR 890014025A KR 910009861 B1 KR910009861 B1 KR 910009861B1
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South Korea
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cutlery
silver
press
thickness
silver cutlery
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KR1019890014025A
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Korean (ko)
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KR910005947A (en
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최권순
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최권순
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K11/00—Making cutlery wares; Making garden tools or the like
    • B21K11/04—Making cutlery wares; Making garden tools or the like spoons; table forks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/60—Making other particular articles cutlery wares; garden tools or the like
    • B21D53/62—Making other particular articles cutlery wares; garden tools or the like spoons; table forks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Table Devices Or Equipment (AREA)

Abstract

A preform (3) for silver spoon is cut out of a silver plate of a uniform thickness into a general shape having the bowl portion (1) and the handle portion (2). The bowl portion (1) is sepeatingly press-worked to an even thickness, and the handle portion is press-formed in dies to a designed handle shope with an engraved pattern. The repeated press-working improves the depsification and work hardening of the silver spoon to a better mechanical property of bending resistance chan the conventional silver spoon.

Description

은수저 제작방법How to make silver cutlery

제1a∼f도는 본 발명의 은수저 제작방법을 순차적으로 설명한 설명도이다.1A to 1F are explanatory views for sequentially explaining the silver cutlery manufacturing method of the present invention.

제2a∼c도는 상기 제1도의 공정을 거친 미가공 은수저의 마무리 공정을 설명한 설명도.2A to 2C are explanatory diagrams illustrating a finishing process of the raw silver cutlery which has passed through the process of FIG. 1.

제3a∼f도는 본 발명의 다른 실시예로서 은수저를 성형 제작하기 위한 방법을 개략적으로 도시한 설명도이다.3A to 3F are explanatory diagrams schematically showing a method for forming and manufacturing silver cutlery as another embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1 : 취식부 2 : 손잡이부1: eating portion 2: handle portion

3 : 미가공 은수저3: raw silver cutlery

본 발명은 은수저를 성형 제작하기 위한 은수저의 제작방법에 관한 것으로, 특히 프레스기 및 압연기등의 단조용 기계를 이용하여 은수저의 두께가 균일하면서 제품자체의 단조 효과를 증대시켜 기계적 강도를 향상시킨 은수저의 제작방법에 관한 것이다.The present invention relates to a method of manufacturing a silver cutlery for forming a silver cutlery, and in particular, by using a forging machine such as a press machine or a rolling mill, the thickness of the silver cutlery is uniform and the forging effect of the product itself is increased to improve the mechanical strength of the silver cutlery. It is about a manufacturing method.

일반적으로 은수저를 성형 제작할 경우에 있어서는, 일정한 두께를 보유하는 은막대를 망치등으로 타격을 가하여 상기의 은막대를 펴서 상부의 취식부와 하부의 손잡이부 형상을 개략적으로 성형한 후, 재차 만곡부가 형성된 금형내에 상기 취식부를 집어넣어 망치등으로 재차 타격을 가하여 취식부를 완성하고, 하부의 손잡이부 역시 하단부에 무늬가 형성된 손잡이부 금형내에 넣어 상기와 같이 타격을 가함으로써 은수저를 완성하는 것이 대부분이다.In general, in the case of forming a silver cutlery, by applying a hammer or the like to a silver rod having a constant thickness, the silver rod is opened to roughly shape the shape of the upper eating portion and the lower handle portion. In most cases, the edible portion is inserted into the formed mold and hit again with a hammer to complete the edible portion, and the handle portion of the lower portion is also put into the handle portion mold having a pattern formed on the lower portion thereof, and then hits as described above to complete the silver cutlery.

그러나, 이와 같은 은수저의 제작방법은 단조 가공으로 인한 제품의 기계적인 강도를 향상시킬 수 있는 반면 은수저 제품의 두께가 균일하지 못하고, 취식부 성형공정과 손잡이부 성형공정등을 매 공정마다 수공으로 일일이 망치등으로 타격을 가하여 성형해야 하므로 제작시간이 많이 소요됨으로써 대량생산에 적합치 못하다는 문제점을 갖고 있었다.However, the manufacturing method of the silver cutlery can improve the mechanical strength of the product due to the forging process, while the thickness of the silver cutlery product is not uniform, and the process of forming the eating portion and the handle portion is performed manually by hand every step. Since it has to be molded by applying a hammer, etc., it takes a lot of production time and has a problem that it is not suitable for mass production.

따라서 최근에는 상기와 같은 수작업에 의존한 단조작업을 거치지 않고 은수저 형태의 금형을 제작하여 금형내에 수저의 형태로 대충 절단된 미가공 수저를 넣어서 프레스기로 직접 찍어내는 형태로 은수저를 제작하는 방법이 개발되었다.Therefore, a method of manufacturing a silver cutlery has been developed in which a silver cutlery mold is manufactured without undergoing a forging operation based on the manual work as described above, and the raw cutlery is roughly cut in the form of a cutlery into the mold and directly cut by a press machine. .

그러나 상기와 같은 제작방법에 있어서는 은수저의 대량 생산이 용이하고, 두께가 균일한 은수저를 생산할 수 있다는 장점이 있는 반면, 수저형상과 동일한 금형을 제작하는 데에는 고가의 금형 제작비가 소요되여, 은수저의 가장 큰 결점인 취약성, 예컨대 은수저는 은의 순도가 99.9%의 은함유량을 보유하는 관계로 인하여 은수저에 약간의 힘만 가하여도 쉽게 휘어지게 되는등 기계적 성질이 취약하다는 문제점이 있다.However, the manufacturing method as described above has the advantage that it is easy to mass-produce silver cutlery and produce a silver cutlery with a uniform thickness, while producing a mold having the same shape as the cutlery requires an expensive mold manufacturing cost, Vulnerability, such as silver cutlery, which is a major drawback, has a problem in that its mechanical properties are vulnerable, such that the silver is easily bent by applying a slight force to the silver cutlery due to the fact that the silver has a silver content of 99.9%.

즉, 단조가공에 의한 은수저 제품은 반복적인 햄머의 타격에 의한 조직의 치질화 및 가공경화 현상에 의해 은수저의 기계적 성질을 우수하게 하여 은수저가 쉽게 구부러지지 않는 반면, 상기와 같은 프레스기에 의한 절단 및 1∼2회 타격으로 제작한 은수저 제품에 있어서는 재질자체의 기계적물성 변화가 거의 없기 때문에 은수저의 사용시 쉽게 구부러지는등, 사용상 불편하다는 문제점이 있는 것이다.In other words, the silver cutlery product by forging is excellent in the mechanical properties of the silver cutlery due to hemorrhoidization and work hardening of the tissue caused by repeated hammer strikes, while the silver cutlery is not easily bent. In the silver cutlery products produced by one or two blows, the mechanical properties of the material itself are almost unchanged, so there is a problem in that they are easily bent when the silver cutlery is used.

이에 본 발명은 상기와 같은 제반 문제점을 해결하기 위해서 발명된 것으로, 은수저의 성형 제작시 프레스기 및 압연기등을 이용하여 소재를 반복타격하여 두께를 감소시켜 제작함으로써 단조(forging) 효과의 증대로 인한 은수저의 기계적 강도를 향상시킴은 물론, 균일한 두께의 제품을 대량생산할 수 있도록 한 은수저의 성형 제작 방법을 제공함에 그 목적이 있다.Therefore, the present invention was invented to solve the above problems, the silver cutlery due to the increase in the forging effect by reducing the thickness by repeatedly hitting the material using a press machine and a rolling mill during the molding production of the silver cutlery The purpose of the present invention is to provide a method of forming and forming a silver cutlery that can improve the mechanical strength of the product and mass produce a product having a uniform thickness.

이하, 첨부한 도면에 의거하여 본 발명의 실시예를 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제1a∼e도에 도시된 바와같이, 순도 99.9%를 보유하는 일정한 두께의 은판(A)을 제1b도에서 도시한 바와같이 손잡이부(2)보다 취식부(1)가 약간 큰 개략적인 수저 형태로 절단 프레스로써 절단가공을 행하여 미가공 수저(3)를 제작하고, 상기 미가공 수저(3)의 취식부(1)를 압연로울로 가압하여 제1c도에서 빗금으로 표시한 바와같이 넓게 펴준후 상기 취식부(1)를 프레스로써 반복 타격하여 두께를 점차 감소시킴과 더불어 가공경화 현상에 의해 기계적 성질을 향상시키는 압축가공을 행한다.As shown in FIGS. 1a to e, a rough cutlery with a slightly larger silver plate A having a purity of 99.9% has a larger eating portion 1 than the handle 2, as shown in FIG. 1b. The cutting process is performed in the form of a cutting press to produce the raw cutlery 3, and the eating portion 1 of the raw cutlery 3 is pressed with a rolling roll to be widened as indicated by hatching in Fig. 1c. By repeatedly hitting the brittle part 1 with a press, the thickness is gradually reduced, and compression processing is performed to improve mechanical properties by work hardening.

한편 미가공 수저(3)의 손잡이부(2)에는, 제1e도에 도시된 바와같이 손잡이부(2)에 소정형태의 무늬가 각인되도록 내부 소정의 무늬가 형성되어 있는 손잡이부 성형금형(4)에다 취식부(1)가 형성된 미가공 수저(3)의 손잡이부(2)를 삽입한 후 성형 프레스로서 3∼4회 압축 성형함으로써 은수저의 손잡이부(2)의 성형가공이 완료된다.On the other hand, in the handle portion 2 of the raw cutlery 3, as shown in FIG. 1E, the handle portion molding mold 4 in which a predetermined pattern inside is formed so that a predetermined shape pattern is imprinted on the handle portion 2. After inserting the handle portion 2 of the raw cutlery 3 on which the edible portion 1 is formed, the molding process of the handle portion 2 of the silver cutlery is completed by compression molding three to four times with a molding press.

따라서 일정두께를 보유토록 프레스기로써 압축 성형된 미가공 수저(3)는, 제1f도에 도시된 바와같이 취식부(1)를 최종 제품의 형상에 대응되는 둥근 요홈이 형성된 금형(4′)내에 삽입하여 프레스로써 압축 및 절단 공정을 수행함으로써 수저의 취식부(1)가 개략적인 타원형상으로 성형되면서 빗금친 기타부분은 절단되게 된다.Accordingly, the raw cutlery 3 compression-molded by a press machine to maintain a certain thickness inserts the eating portion 1 into a mold 4 'having a round groove corresponding to the shape of the final product as shown in FIG. 1F. By pressing and pressing the cutting process by pressing the cut-off portion (1) of the cutlery is molded into a rough oval shape and other parts that are hatched are cut.

이와 같이 제조된 미가공 은수저는 제2a도에 도시된 바와 같이, 재차 프레스기의 펀치(5)로써 타격에 의한 압축가공을 행하여 취식부(1)가 균일한 두께를 보유토록 한 후, 제2b도에 도시된 바와같이 둥근 요홈이 형성된 하부 금형(4a)상에 상기 취식부(1)를 올려놓고, 둥근 철부가 형성된 상부 금형(4b)으로 타격하게되면 제2c도와 같은 은수저(10)가 완성되게된다.As shown in FIG. 2a, the raw silver cutlery manufactured as described above is subjected to compression processing by hitting again with the punch 5 of the press machine, so that the eating portion 1 has a uniform thickness. As shown in the drawing, when the dishing part 1 is placed on the lower mold 4a having the round groove formed thereon and hitting the upper mold 4b having the round iron formed thereon, the silver cutlery 10 as shown in FIG. 2C is completed. .

한편 본 발명은 상기 실시예에 한정되지않고 여러가지로 변형실시할 수 있는바, 즉, 제3a∼f도는 본 발명의 실시예 2를 설명한 도면으로서, 최종 제품에 해당하는 은수저의 두께보다는 두껍고 외곽사이즈는 작은 반제품 상태의 미가공 은수저(3)를 프레스기로 성형하고, 이를 실제 은수저의 모양과 크기가 같도록 요홈(6)이 형성된 금형(7)내에 집어넣어 프레스기로서 압착한 후, 손잡이부(2)를 상기 실시예 1과 동일한 금형(4)으로써 압축 성형함으로써 은수저를 생산하는 것이다.On the other hand, the present invention is not limited to the above embodiment can be modified in various ways, that is, Figure 3a to Figure 3 is a view illustrating the second embodiment of the present invention, the thickness of the cutlery corresponding to the final product is thicker than the outer size The raw silver cutlery 3 in a small semi-finished state is molded by a press, and put into a mold 7 having a groove 6 formed therein so as to have the same shape and size as the actual silver cutlery, and then pressed by a press. The silver cutlery is produced by compression molding with the same die 4 as in the first embodiment.

이상 설명에서와 같이 본 발명은 다수의 공정을 거치면서 프레스기 및 압연기등의 단조기계를 이용하여 은수저를 제작함으로써 제품자체의 단조효과의 증대로 인한 은수저의 기계적 강도를 향상시킴은 물론, 은수저 제품이 균일한 두께를 보유하면서 대량 생산할 수 있는 효과가 있다.As described above, the present invention improves the mechanical strength of the silver cutlery due to the increase in the forging effect of the product by manufacturing the silver cutlery using a forging machine such as a press machine and a rolling mill through a plurality of processes, and the silver cutlery product is It has the effect of mass production while maintaining a uniform thickness.

Claims (1)

일정한 두께로 제작된 은판에서 소정형상의 미가공은수저(3)를 절단하여 취식부(1)를 압연 로울로 가압하는 압연단계와. 상기 취식부(1)가 일정한 두께를 보유토록 압축하는 압축성형 단계와, 상기 미가공수저(3)의 손잡이부(2)를 프레스기로써 성형함과 더불어 무늬를 각인하는 손잡이부성형 단계 및, 상기 미가공 수저(3)의 취식부(1)를 상,하부 금형(4a),(4b)내에서 압축 성형하는 취식부 성형단계로 이루어진 은수저 제작방법에 있어서, 상기 압축성형단계가 취식부(1)의 두께를 점차 감소시킴과 더불어 기계적 성질을 향상시키기 위해 프레스로써 반복타격한 뒤, 이 취식부(1)를 요홈이 형성된 금형(4′)내에 삽입하여 프레스로써 압축하여 타원형상으로 성형하도록된 것을 특징으로 하는 은수저 제조방법.Rolling step of cutting the cutlery (3) of the predetermined shape from the silver plate made of a constant thickness to press the eating section (1) with a rolling roll. A compression molding step of compressing the eating portion 1 to have a constant thickness, a handle part forming step of molding a handle part 2 of the raw cutlery 3 by a press machine, and stamping a pattern; In the silver cutlery manufacturing method which consists of the edible part forming step of compression-molding the edible part 1 of the cutlery 3 in the upper and lower molds 4a and 4b, the compression molding step is performed by the edible part 1. In order to reduce the thickness and improve the mechanical properties, after repeatedly hitting with a press, the indentation part 1 is inserted into a mold 4 'formed with a recess and compressed by a press to form an elliptical shape. Silver cutlery manufacturing method.
KR1019890014025A 1989-09-29 1989-09-29 Silver spoon make method KR910009861B1 (en)

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KR910009861B1 true KR910009861B1 (en) 1991-12-03

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KR100954845B1 (en) * 2007-12-17 2010-04-28 한국화학공업 주식회사 Manufacturing Method of silver spoon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100954845B1 (en) * 2007-12-17 2010-04-28 한국화학공업 주식회사 Manufacturing Method of silver spoon

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