KR950000084B1 - Making method of toy ball - Google Patents

Making method of toy ball Download PDF

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Publication number
KR950000084B1
KR950000084B1 KR1019890009941A KR890009941A KR950000084B1 KR 950000084 B1 KR950000084 B1 KR 950000084B1 KR 1019890009941 A KR1019890009941 A KR 1019890009941A KR 890009941 A KR890009941 A KR 890009941A KR 950000084 B1 KR950000084 B1 KR 950000084B1
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KR
South Korea
Prior art keywords
ball
rubber
mold
toy ball
mixed
Prior art date
Application number
KR1019890009941A
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Korean (ko)
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KR910002480A (en
Inventor
이준채
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이준채
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Publication date
Application filed by 이준채 filed Critical 이준채
Priority to KR1019890009941A priority Critical patent/KR950000084B1/en
Publication of KR910002480A publication Critical patent/KR910002480A/en
Application granted granted Critical
Publication of KR950000084B1 publication Critical patent/KR950000084B1/en

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B45/00—Apparatus or methods for manufacturing balls

Abstract

The natural or synthetic rubber is mixed with light carbon powder and foaming agent, heated in a mold and foamed to give a toy ball by opening. A mixture of rubber 50 g, light carbon powder 50 g, foaming agent 8 %, and salicylic acid 4 % is put in grooved molds which are connected to electric heater and heated to 100-120 deg.C for 15-20 min and opened to foam the ball. When the ball is foamed, the inner elements are protruded to outer surface so that the density of center part of ball becomes lower than that of surface layer to give a very elastomeric ball.

Description

완구공의 제조방법How to make a toy ball

제 1 도는 본 발명의 단면도.1 is a cross-sectional view of the present invention.

제 2 도는 본 발명의 제조장치 예시도.2 is an exemplary view of the manufacturing apparatus of the present invention.

제 3 도는 본 발명의 성형장치가 닫힌 상태.3 is a state in which the molding apparatus of the present invention is closed.

제 4 도는 본 발명의 성형장치에서 공이 성형된 상태 단면도.4 is a cross-sectional view of the ball is molded in the molding apparatus of the present invention.

제 5 도는 본 발명에서 공모양을 이치롭게한 성형장치 단면도.5 is a cross-sectional view of a molding apparatus that makes a ball shape in the present invention.

제 6 도는 제 5 도의 성형장치에 의한 제품단면도이다.6 is a cross-sectional view of the product by the molding apparatus of FIG.

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

1 : 공 1가 : 소재1: ball 1: material

1" : 돌기 1a : 포층1 ": projection 1a: fabric layer

1d : 심층 2 : 하형1d: Deep 2: Lower

3 : 상형 2a,3a : 성형홈3: upper mold 2a, 3a: molding groove

2',3' : 요입홈 4,4a : 전기히터2 ', 3': Indentation groove 4,4a: Electric heater

5 : 앞판 6 : 고정판5: front plate 6: fixed plate

7 : 승강롯드 8 : 실린더7: lifting rod 8: cylinder

본 발명은 완구용 공의 제법에 관한 것으로 고무(천연고무나 합성고무) 원료에 경탄가루와 발포제를 넣어 공형상으로 뭉쳐 가열형기에 투입하여 가열하고 형틀을 열어 발포시키는 것이다.The present invention relates to a manufacturing method of a ball for toys, put hard coal powder and foaming agent in a rubber (natural rubber or synthetic rubber) raw material, unite in a ball shape, put it into a heating mold, heat it, and open the mold and foam it.

종래의 완구용 공은 고무를 얇게 빚어 접착하고 내부에 바람을 넣어 구성시킨 것이므로 인건비가 많이 들고 사용중에 쉽게 찢어지는 등의 결점이 있었다.Conventional balls for toys are made of a thin rubber glue and the air inside, there is a defect such as high labor costs and easy tearing during use.

본 발명은 위와 같은 종래의 결점을 시정하기 위하여 안출한 것으로 이를 설명하면 다음과 같다.The present invention has been devised to correct the above-described drawbacks as follows.

[제 1 공정][Step 1]

고무(천연고무 또는 합성고무) 50g50 g of rubber (natural or synthetic rubber)

경탄 50gMarvelous 50g

올 혼합한 것에 발포제 8%8% of blowing agents in the mixture

살진산 4%4% salicylic acid

기타 약간량을 혼입시킨다.Incorporate some other amount.

[제 2 공정]Second Process

제 1 공정에서 제조된 소재를 공형태로 뭉쳐서 형홈(3a)(2a)을 가진 분할형 상형(3)과 하형(2) 사이에 넣고 형틀을 닫아 전기히터(4)(4a)에 전기를 공급하여 100-120℃의 열을 15-20분간 상하형에 가하여 내부의 소재(1가)가 상하형(2)(3)내에서 충분히 열을 받아 포화상태가 되게한 후 상형과 하형을 개방하므로서 발포가 되어 공모양이 형성되게한 것인바, 중심부(1d)는 밀도가 성글고 표피층(1a)으로 향해 점점 밀도가 높은 공을 형성시키는 것이다.The materials produced in the first process are aggregated in a ball shape, and are placed between the divided upper mold 3 and the lower mold 2 having the mold grooves 3a and 2a, and the mold is closed to supply electricity to the electric heaters 4 and 4a. The upper and lower molds are opened by applying 100-120 ℃ of heat to the upper and lower molds for 15-20 minutes to ensure that the internal material (1) is sufficiently heated in the upper and lower molds (2) and (3). The foam is formed so that a ball shape is formed. The central portion 1d has a sparse density and forms a denser ball toward the skin layer 1a.

이와 같이된 본 발명의 공은 고무가 발포성형된 공이므로 중심부에는 밀도가 성글고 표피층으로 향해 점점 밀도가 높은 공이 되므로 사용중에 찢어지거나 변형될 염려가 없으며 접착할 필요가 없어 생산성이 높고 바람을 넣지 않고 사용할 수 있기 때문에 실용적이며 표면의 모양을 다양하게 형성할 수 있어서 상품성이 높은 이점이 있는 것이다.Since the ball of the present invention is a rubber-molded ball, the ball is denser at the center and becomes a denser ball toward the skin layer, so there is no fear of being torn or deformed during use. Since it can be used without being practical, it is possible to form a variety of surface shape is that there is a high merchandise advantage.

Claims (1)

유압실린더(8)에 의하여 승강되는 압판(5)에 하형(2)을 장치하고 고정판(6)에 상형(3)을 장치하여 상형과 하형에 전기히터(4)(4a)를 접촉시키고 성형홈(2a)(3a)에 고무 50g, 경탄 50g에 발포제 8%와 살진산 4%를 넣어 혼합한 공소재(1가)를 넣고 형을 닫아 품온을 100-120℃로 15-20분간에 걸쳐 가열한 후 개방하므로서 내부에 들어있는 소재(1가)가 외부로 돌출되면서 발포되어 공중심부(1d)는 밀도가 적고 표층(1a)으로 갈수록 밀도가 큰 탄성체 공이 되게한 완구공의 제조방법.The lower die 2 is mounted on the platen 5 which is lifted by the hydraulic cylinder 8, and the upper die 3 is mounted on the fixed plate 6 to contact the electric heaters 4 and 4a between the upper die and the lower die. (2a) Put the mixed material (monovalent) mixed with 50g of rubber and 8% of blowing agent and 4% of salmonic acid in 50g of hard coal, and close the mold by heating the product temperature to 100-120 ℃ for 15-20 minutes. Method of manufacturing a toy ball that is then opened by opening the material (monovalent) in the outside as it protrudes to the outside, so that the air core (1d) is less dense and becomes a denser elastomer ball toward the surface layer (1a).
KR1019890009941A 1989-07-13 1989-07-13 Making method of toy ball KR950000084B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890009941A KR950000084B1 (en) 1989-07-13 1989-07-13 Making method of toy ball

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890009941A KR950000084B1 (en) 1989-07-13 1989-07-13 Making method of toy ball

Publications (2)

Publication Number Publication Date
KR910002480A KR910002480A (en) 1991-02-25
KR950000084B1 true KR950000084B1 (en) 1995-01-09

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Application Number Title Priority Date Filing Date
KR1019890009941A KR950000084B1 (en) 1989-07-13 1989-07-13 Making method of toy ball

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0936242A1 (en) * 1998-02-17 1999-08-18 The Goodyear Tire & Rubber Company Metal deactivator for cobalt catalyzed polymers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0936242A1 (en) * 1998-02-17 1999-08-18 The Goodyear Tire & Rubber Company Metal deactivator for cobalt catalyzed polymers

Also Published As

Publication number Publication date
KR910002480A (en) 1991-02-25

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