JPH06170870A - Manufacture of vinyl chloride hollow ball, in which substance is sealed - Google Patents
Manufacture of vinyl chloride hollow ball, in which substance is sealedInfo
- Publication number
- JPH06170870A JPH06170870A JP35067992A JP35067992A JPH06170870A JP H06170870 A JPH06170870 A JP H06170870A JP 35067992 A JP35067992 A JP 35067992A JP 35067992 A JP35067992 A JP 35067992A JP H06170870 A JPH06170870 A JP H06170870A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- paste
- ball
- hollow ball
- gelled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は回転成形により製造し、
内部にセンサー、鈴などの物体を封入する塩化ビニール
製中空ボールの製造方法に関する。BACKGROUND OF THE INVENTION The present invention is manufactured by rotational molding.
The present invention relates to a method for manufacturing a hollow vinyl chloride ball in which an object such as a sensor or a bell is enclosed.
【0002】[0002]
【従来の技術】回転成形により成形する中空ボール内
に、鈴などの物品を封入するには、一般的には特公昭5
0ー31900号公報に開示されているように、成形型
の内壁に台座を接着などの方法に固定し、この台座に物
品などを取付けた後、成形型内に、ボール成形用の塩化
ビニールペーストを容れて回転成形によって成形してい
る。2. Description of the Related Art In order to enclose an article such as a bell in a hollow ball molded by rotational molding, it is generally done in Japanese Examined Patent Publication No.
As disclosed in Japanese Patent Publication No. 0-31900, a pedestal is fixed to an inner wall of a molding die by a method such as adhesion, and an article or the like is attached to the pedestal. And is molded by rotational molding.
【0003】[0003]
【発明が解決しようとする課題】ところで、以上の方法
によれば、成形型内の物品に、塩化ビニールペーストを
回転成形する際、ペーストの一部が付着するため、物品
がペーストに汚損されたり、付着したペーストにより、
物品がボールの内面に貼着される虞れがある。そこで、
本発明は斯様な従来品の不具合を除去することを目的と
する。By the way, according to the above method, when the vinyl chloride paste is rotationally molded on the article in the mold, a part of the paste adheres to the article, and the article is contaminated with the paste. , Depending on the attached paste,
There is a risk that the article will be stuck to the inner surface of the ball. Therefore,
An object of the present invention is to eliminate such defects of the conventional products.
【0004】[0004]
【課題を解決するための手段】以上の目的を解決するた
めの本発明に係る内部に物体を封入した塩化ビニール製
中空ボールの製造方法は、上、下型からなる回転成形型
内に塩化ビニールペーストを収容して回転成形型内面に
沿って、半ゲル化又はゲル化状態の中空ボールを成形
し、次に、上型又は下型を分離させることにより、上型
と下型とに付着する中空ボールを上型、下型に沿って半
球状に2分割し、然る後、この2分割にした中空状ボー
ルの端面に、前記ペーストと同質又は相溶性に優れた接
着性ペーストを付着させ、その内部に物体を内装した
後、上、下型を嵌合して回転成形することを特徴とする
ものである。[Means for Solving the Problems] In order to solve the above-mentioned object, a method for producing a hollow vinyl chloride ball having an object enclosed therein according to the present invention is a vinyl chloride in a rotational molding die composed of an upper die and a lower die. A semi-gelled or gelled hollow ball is molded along the inner surface of the rotational molding die containing the paste, and then the upper mold or the lower mold is separated to adhere to the upper mold and the lower mold. The hollow ball is divided into two hemispherical parts along the upper mold and the lower mold, and then an adhesive paste having the same quality or excellent compatibility with the paste is attached to the end surface of the hollow ball divided into two parts. The present invention is characterized in that an object is internally provided inside, and then upper and lower molds are fitted to each other and rotational molding is performed.
【0005】[0005]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図1は、内面が半球状の上型(11)と下型
(10)とからなる回転成形型(1)内に、ポリ塩化ビ
ニール、可塑剤、接着剤などからなるボール形成用の塩
化ビニールペーストを収容して、回転成形型(1)を炉
内で加熱(200度〜300度)し、2分〜4分間回転
して、半ゲル化又はゲル化状態の球状中空ボール(A)
を成形した状態を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a polyvinyl chloride for forming a ball, which is made of polyvinyl chloride, a plasticizer, an adhesive, etc., in a rotational molding die (1) having an inner surface of a hemispherical upper die (11) and a lower die (10). Spherical hollow balls (A) in a semi-gelled or gelled state, containing paste and heating the rotary mold (1) in a furnace (200 to 300 degrees) and rotating for 2 to 4 minutes.
The molded state is shown.
【0006】図2は、図1の状態より炉から取り出して
回転成形型を水冷却することなく、即ち、冷却せず(常
温)で、上型(10)を外した後、2分割した半球状の
中空ボール(A1)(A2)の端面に、接着性ペースト
(B)を付着した状態を示す。FIG. 2 shows a hemisphere which is taken out from the furnace shown in FIG. 1 and is not cooled with water, that is, without being cooled (normal temperature), and after removing the upper mold (10), the hemisphere is divided into two parts. The state in which the adhesive paste (B) is attached to the end faces of the hollow balls (A 1 ) (A 2 ) in the shape of a circle is shown.
【0007】上型(11)を外すと、回転成形型(1)
は冷却されていないため、内部空気が膨出し、この膨出
力と、球状の中空ボール(A)が半ゲル化又はゲル化に
より、球状の中空ボール(A)は上型(11)と下型
(10)の境界部分より、2分割され半球状になり、夫
々下型(10)、上型(11)の内面に付着している。
この状態で、中空ボール(A1)(A2)内部に物体
(C)を入れ、端面に接着性ペースト(B)を有する中
空ボール(A1)(A2)付の上、下型(10)(11)
を型締めして、再度、加熱し乍ら回転成形すると、図
3、図4に示すように回転成形型内での半球状中空ボー
ル(A1)(A2)は、接着ペースト(B)により一体に
連結する。When the upper die (11) is removed, the rotational molding die (1)
Is not cooled, the internal air swells, and the swelling output and the spherical hollow balls (A) are semi-gelled or gelled, so that the spherical hollow balls (A) have an upper mold (11) and a lower mold. From the boundary portion of (10), it is divided into two and becomes hemispherical, and adheres to the inner surfaces of the lower mold (10) and the upper mold (11), respectively.
In this state, placed a hollow ball (A 1) (A 2) object within (C), a hollow ball (A 1) having an adhesive paste (B) to the end surface (A 2) on the attached, the lower mold ( 10) (11)
When the mold is clamped, and the mixture is heated again to be rotationally molded, the hemispherical hollow balls (A 1 ) (A 2 ) in the rotational molding die are adhesive paste (B) as shown in FIGS. 3 and 4. To connect together.
【0008】以上の接着ペースト(B)は、ボール
(A)成形用のペーストと同一又は相溶性に優れた樹脂
ペーストであり、この二回目の回転成形後、回転成形型
を水冷却して、ゲル化させた後、脱型すると、図5に示
す塩化ビニール製中空ボール(A′)が製造される。The above-mentioned adhesive paste (B) is a resin paste having the same or excellent compatibility with the paste for molding the ball (A). After the second rotational molding, the rotational molding die is cooled with water, After the gelation, the mold is removed to produce the vinyl chloride hollow balls (A ') shown in FIG.
【0009】以上の物体(C)は、中空ボール(A′)
の内径と略同一の外径を有するウレタンフォームのボー
ル、又は、このボール内に内蔵したセンサー、或いは、
ボール本体(A′)が透明体の場合には造花、若しく
は、鈴などであり、前記センサーは磁気センサーなどの
センサーで、このセンサーにより中空ボールが転動し、
音色が発生するものである。The above object (C) is a hollow ball (A ').
A urethane foam ball that has an outer diameter that is approximately the same as the inner diameter of, or a sensor built into this ball, or
When the ball body (A ') is a transparent body, it is an artificial flower or a bell, and the sensor is a sensor such as a magnetic sensor, and the hollow ball rolls by this sensor.
A timbre is generated.
【0010】[0010]
【発明の効果】本発明によれば、回転成形型で、中空ボ
ールを半ゲル化又はゲル化させた状態に回転成形した
後、その上、下型からなる回転成形型を冷却せずに分離
させて、上、下型に沿った半球状の2分割した中空ボー
ルを成形し、その2分割した中空ボールの端面に接着ペ
ーストを付着させて再度回転成形するため、ボール内に
封入した物体に、ボール形成用のペーストが付着する虞
れがない。従って、物体がボール形成用のペーストによ
って汚損されたり、或いは、ボールの内壁面に付着する
ことがない。そのため、製造簡単にして、外観品質等に
優れた塩化ビニール製中空ボールを製造できる。EFFECTS OF THE INVENTION According to the present invention, after a hollow ball is rotationally molded in a semi-gelled or gelled state by a rotational molding die, the rotational molding die composed of a lower die is separated without cooling. Then, a hemispherical two-part hollow ball along the upper and lower molds is molded, and an adhesive paste is attached to the end surface of the two-part hollow ball to be rotationally molded again. In addition, there is no risk that the ball forming paste will adhere. Therefore, the object is not contaminated by the ball-forming paste or attached to the inner wall surface of the ball. Therefore, the hollow ball made of vinyl chloride having excellent appearance quality and the like can be manufactured by simple manufacturing.
【図1】本発明に係る方法により、半ゲル又はゲル化状
態のボールを成形した状態の断面図である。FIG. 1 is a cross-sectional view of a state in which a semi-gelled or gelled ball is molded by the method according to the present invention.
【図2】図1の状態より、上型を解放した状態の斜視図
である。FIG. 2 is a perspective view of the state in which the upper mold is released from the state of FIG.
【図3】内部に物体を封入した状態の断面図である。FIG. 3 is a cross-sectional view showing a state in which an object is enclosed inside.
【図4】図3の(イ)部の拡大図である。FIG. 4 is an enlarged view of part (a) of FIG.
【図5】本発明方法によって成形した中空ボールを一部
切欠して示す斜視図である。FIG. 5 is a perspective view showing a hollow ball formed by the method of the present invention with a part thereof cut away.
1 回転成形型 A 半ゲル化又はゲル化した中空ボール B 接着性ペースト C 物体 1 Rotational mold A Semi-gelled or gelled hollow ball B Adhesive paste C Object
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 B29L 31:52 4F Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display area B29L 31:52 4F
Claims (1)
ニールペーストを収容して回転成形型内面に沿って、半
ゲル化又はゲル化状態の中空ボールを成形し、次に、上
型又は下型を分離させることにより、上型と下型とに付
着する中空ボールを上型、下型に沿って半球状に2分割
し、然る後、この2分割にした中空状ボールの端面に、
前記ペーストと同質又は相溶性に優れた接着性ペースト
を付着させ、その内部に物体を内装した後、上、下型を
嵌合して回転成形することを特徴とする内部に物体を封
入した塩化ビニール製中空ボールの製造方法。1. A semi-gelled or gelled hollow ball is formed along the inner surface of a rotational molding die by containing vinyl chloride paste in the rotational molding die composed of an upper die and an upper die. Alternatively, by separating the lower mold, the hollow ball attached to the upper mold and the lower mold is divided into two hemispherical shapes along the upper mold and the lower mold, and then the end faces of the two divided hollow balls. To
Adhesive paste having the same or excellent compatibility as the paste is attached, and after the object is internally housed therein, the upper and lower molds are fitted to each other and rotational molding is performed. Method for manufacturing vinyl hollow balls.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP35067992A JPH06170870A (en) | 1992-12-04 | 1992-12-04 | Manufacture of vinyl chloride hollow ball, in which substance is sealed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP35067992A JPH06170870A (en) | 1992-12-04 | 1992-12-04 | Manufacture of vinyl chloride hollow ball, in which substance is sealed |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06170870A true JPH06170870A (en) | 1994-06-21 |
Family
ID=18412116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP35067992A Pending JPH06170870A (en) | 1992-12-04 | 1992-12-04 | Manufacture of vinyl chloride hollow ball, in which substance is sealed |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06170870A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1787780A1 (en) * | 2005-11-17 | 2007-05-23 | Chia-Yen Lin | Method of making a toy ball |
CN114179273A (en) * | 2021-12-10 | 2022-03-15 | 浙江曙光体育用品有限公司 | Seamless table tennis ball and manufacturing process thereof |
-
1992
- 1992-12-04 JP JP35067992A patent/JPH06170870A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1787780A1 (en) * | 2005-11-17 | 2007-05-23 | Chia-Yen Lin | Method of making a toy ball |
CN114179273A (en) * | 2021-12-10 | 2022-03-15 | 浙江曙光体育用品有限公司 | Seamless table tennis ball and manufacturing process thereof |
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