JPS5851110A - Manufacture of synthetic resin ball - Google Patents
Manufacture of synthetic resin ballInfo
- Publication number
- JPS5851110A JPS5851110A JP14873781A JP14873781A JPS5851110A JP S5851110 A JPS5851110 A JP S5851110A JP 14873781 A JP14873781 A JP 14873781A JP 14873781 A JP14873781 A JP 14873781A JP S5851110 A JPS5851110 A JP S5851110A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- synthetic resin
- ball
- mounting hole
- attaching hole
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/04—Spherical articles, e.g. balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/38—Moulds, cores or other substrates
- B29C41/386—Moulds, cores or other substrates for undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】 この発明は合成樹脂ボールの製造方法の改良に関する。[Detailed description of the invention] This invention relates to an improvement in a method for manufacturing synthetic resin balls.
従来の合成樹脂ボールは例えばＩＪｆ！ｊＦｌ’第５ｇ
０９ｇｇ号（特公昭グ３−３１２３号）にみられるよう
に、予しめ成形したバルブ挿着管を成形用の金型内壁に
接着して置いて流動性の合成樹脂を注入し１回転成形機
によって加熱成形し、中空ボールとバルブ挿着管？合体
させたものである。従ってこれらの中空ボールは過激な
球技においては１合体部分に亀装馨生、じてバルブ挿着
管が脱落したり空気波れの原因となる欠点があった。A conventional synthetic resin ball is, for example, IJf! jFl' 5th g
As seen in No. 09gg (Special Publication No. 3-3123), a pre-formed valve insertion tube is glued to the inner wall of a mold, and a fluid synthetic resin is injected into a one-turn molding machine. Heat formed by hollow ball and valve insertion tube? It is a combination. Therefore, these hollow balls have the disadvantage that, in extreme ball games, the valve insertion tube may fall off or cause air turbulence if the ball is attached to one unit.
この発明は高分子物質の流′動性が温瑠に゛よって変化
することを利用して中空ボールとバルブ取付孔馨同時に
同体成形して上記の合体による弱体化？防止すること？
目的とするものである。This invention takes advantage of the fact that the fluidity of polymeric substances changes with temperature, and simultaneously molds the hollow ball and the valve mounting hole to reduce the weakening caused by the above-mentioned combination. What to prevent?
This is the purpose.
前記の目的を充足するためこの発明は次のように構成し
たものである。In order to satisfy the above object, the present invention is constructed as follows.
即ちこの発明は割金型の内壁に送気バルブの外形に類似
するバルブ取付孔形成部材を突設し、割金型内に流動性
合成樹脂？封入してｖ１金型？自転詑びに公転させつ＼
加熱して中空ボールを成形し、かつ同時にバルブ取付孔
を設け、このバルブ取付孔に送気細孔及び切込みを有す
るバルブを挿着したことを特徴とする合成樹脂ボールの
製造方法である。That is, in this invention, a valve mounting hole forming member similar to the outer shape of the air supply valve is protruded from the inner wall of the split mold, and a fluid synthetic resin is placed inside the split mold. Enclosed in v1 mold? Let it rotate and revolve ＼
This method of manufacturing a synthetic resin ball is characterized in that a hollow ball is formed by heating, a valve mounting hole is provided at the same time, and a valve having an air supply hole and a notch is inserted into the valve mounting hole.
次に図面についてこの発明に係る中空ボールの製造方法
の壺流側を説明する。図において、、ｊｌ、、ｊ及び
。Next, the pot flow side of the hollow ball manufacturing method according to the present invention will be explained with reference to the drawings. In the figure, ,jl, ,j and
.
岨１割金型でそれぞれ半球形に、成形し、一方の割金型
＋２＋の内呼に送気バルブｔａ＋の外形に類似する取付
孔形成部材（４）を突設する。この・割金型＋１１ ＋
２１内に流動性の合成樹脂（５１？封入して”割金型＋
１１ ＋２１を自転かつ公転させながら加熱することに
よって第２図に示すように合成樹脂＋５＋は割金型＋ｌ
ｌ ＋２１の内壁に均等に付着成形され取付孔形成部材
（４）によって盛上り部（６）か形成され、割金型＋１
１１２ｆ Ｙ増作せば・中空ボール（７）が÷き上る。Each is molded into a hemispherical shape using a half-split mold, and a mounting hole forming member (4) similar to the outer shape of the air supply valve ta+ is provided protruding from the inner ring of one of the split molds +2+. This split mold +11 +
21 is filled with fluid synthetic resin (51?
By heating 11 +21 while rotating and revolving, the synthetic resin +5+ is made into a split mold +l as shown in Figure 2.
A raised part (6) is formed by the mounting hole forming member (4) which is evenly adhered and molded on the inner wall of l+21, and the split mold +1
112f If Y is increased, the hollow ball (7) will rise.
そして取付孔形成部材（４）によって盛上り部（６１に
形成されたパルプ増付［＋８１にゴムで成形し送気細孔
（９）及び蕾着切込（１１，つばαυ？有する送気バル
ブ（８）を挿着し、つばＵＶバルブ取付孔（８」の円周
溝部（Ｌ２に嵌めることで合成樹脂ボールの製造Ｙ完了
する。Then, the mounting hole forming member (4) forms an air supply valve formed with rubber at the raised part (61) [+81] and has an air supply pore (9) and a bud attachment notch (11, brim αυ?). (8) and fit it into the circumferential groove (L2) of the brim UV bulb mounting hole (8") to complete the production of the synthetic resin ball.
この発明は以上のように中空ホールにバルブ取付孔を開
設した盛上り部が一体に成形され、この取付孔に送簀１
バルブ？挿着することにより一体化するので、在来のよ
うに予じめ金型の内壁にバルブ挿着管を接着して成形す
るもの＼ように１球技中に脱落したり或′いは空Ｘ洩れ
が生じることがない。As described above, in this invention, a hollow hole is integrally formed with a raised part in which a valve mounting hole is formed, and a feed basin 1 is inserted into this mounting hole.
valve? Since it is integrated by inserting it, unlike the conventional method in which the valve insertion tube is glued to the inner wall of the mold in advance and molded, it may fall off during one ball game or become empty. No leakage occurs.
図面はこの発明Ｖこ係る合成樹脂ボールの製造方法の一
実＃剥Ｙ示したもので、第１図は割金型の断面図、第２
図は割金型内やこ流動性合ｂｙ情脂を封入し加熱＋１．
＋１転成形した断面図、第３図は割金型より増作した外
形ボールの断面図、第グ図は本発明の方法によって＃！
造したボールに挿着するバルブの暫面図、第５図９第ｑ
図のバルブをボールに形成された取付孔に装着した状初
？示す断面図である。
＋ＩＩ ｔ２１〜割金型％１３１〜送気パルプ、（４）
〜取付孔形成部材、１５１〜流動性の合成樹脂、１６）
〜盛上り部。
（７）〜中空ボール、１８１〜バシプ取付孔、（９１〜
送気細孔、０１〜密着切込。
％：！！ｆ出願人の名称
ｉ瀬ゴム工業株式会社
？椰８ｐ５ｇ−５１１１０（３）The drawings show an example of the method for manufacturing synthetic resin balls according to the present invention, and FIG. 1 is a cross-sectional view of a split mold, and
The figure shows a mold with a fluid mixture filled with oil and heated +1.
Figure 3 is a cross-sectional view of a ball with an increased external shape made from a split mold, and Figure 3 is a cross-sectional view of the ball after +1 roll molding.
Temporary view of the valve to be inserted into the manufactured ball, Fig. 5, 9th q.
Does it look like the valve shown in the figure is attached to the mounting hole formed in the ball? FIG. +II t21 ~ Split mold %131 ~ Aerated pulp, (4)
- Attachment hole forming member, 151 - Fluid synthetic resin, 16)
~The climax part. (7) ~Hollow ball, 181~Basip mounting hole, (91~
Air supply pore, 01~close cut. %:! ! f Name of applicant i Se Rubber Industry Co., Ltd.? Yam8p5g-51110(3)
Claims (1)
孔形成部材を突設し１割金型内に流動性合成樹脂？封入
して割金型を自転並びに公転させつ＼加熱して中空ボー
ル？成形し、ｎ）つ同時にバルブ取付孔？設け、このバ
ルブ取付孔に送気細孔及ム切込みを有するバルブを挿着
したことｔ％徴とする合成樹脂ボールの製造方法ユA valve mounting hole forming member similar to the external shape of the air supply valve is protruded from the inner wall of the split mold, and a fluid synthetic resin is placed inside the split mold. Enclose it and make the split mold rotate and revolve, then heat it and make a hollow ball? Molding, n) and valve mounting hole at the same time? A method for manufacturing a synthetic resin ball is provided in which a valve having an air supply hole and a notch is inserted into the valve mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14873781A JPS5851110A (en) | 1981-09-22 | 1981-09-22 | Manufacture of synthetic resin ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14873781A JPS5851110A (en) | 1981-09-22 | 1981-09-22 | Manufacture of synthetic resin ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5851110A true JPS5851110A (en) | 1983-03-25 |
Family
ID=15459481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14873781A Pending JPS5851110A (en) | 1981-09-22 | 1981-09-22 | Manufacture of synthetic resin ball |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5851110A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215268A (en) * | 2015-09-30 | 2016-01-06 | 苏州新协力特种工业模板有限公司 | A kind of sphere formwork structure |
| CN109999437A (en) * | 2019-05-06 | 2019-07-12 | 丁修宇 | Disposal molding has the seamless table tennis of interior lines |
-
1981
- 1981-09-22 JP JP14873781A patent/JPS5851110A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215268A (en) * | 2015-09-30 | 2016-01-06 | 苏州新协力特种工业模板有限公司 | A kind of sphere formwork structure |
| CN109999437A (en) * | 2019-05-06 | 2019-07-12 | 丁修宇 | Disposal molding has the seamless table tennis of interior lines |
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