JPS63256412A - Dip molding of cylindrical body and mold - Google Patents
Dip molding of cylindrical body and moldInfo
- Publication number
- JPS63256412A JPS63256412A JP8994787A JP8994787A JPS63256412A JP S63256412 A JPS63256412 A JP S63256412A JP 8994787 A JP8994787 A JP 8994787A JP 8994787 A JP8994787 A JP 8994787A JP S63256412 A JPS63256412 A JP S63256412A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- coating liquid
- face
- air
- air reservoir
- 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.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000007598 dipping method Methods 0.000 claims description 4
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000011347 resin Substances 0.000 abstract description 7
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract 1
- 230000003028 elevating effect Effects 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 229930186657 Lat Natural products 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、成形型を塗布液中に浸漬して行うディップ成
形方法、及びその成形型の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a dip molding method in which a mold is immersed in a coating liquid, and improvements to the mold.
従来、この種のディップ成形方法により、第５図に示す
ような薄肉円筒（ａ）の一端に、テーパ部（ｂ）を介し
て、小径筒部（Ｑ）を連設した形状の絶縁スリーブ（ｄ
）を製造するには、２工程を要していた。Conventionally, this type of dip molding method has been used to produce an insulating sleeve (as shown in FIG. 5) having a shape in which a small-diameter cylindrical portion (Q) is connected to one end of a thin-walled cylinder (a) via a tapered portion (b). d
) required two steps.
すなわち、第４図に示す成形型（ａ）を、溶融した合成
樹脂材料からなる塗布液（ｆ）中に浸漬した後、これを
引上げて乾燥させることにより有底筒体（ｇ）とし、こ
の有底筒体（ｇ）の底部（ｇ′）を、カッターで切断し
ていた。That is, the mold (a) shown in FIG. 4 is immersed in a coating solution (f) made of a molten synthetic resin material, and then pulled up and dried to form a bottomed cylinder (g). The bottom (g') of the bottomed cylinder (g) was cut with a cutter.
上部したように、ディップ成形後に、底部を切断して開
口するには、手間が掛かり、コスト高となる。As mentioned above, cutting the bottom part to open the bottom part after dip molding is time consuming and costly.
本発明は、ディップ成形のみの１工程によって筒体を成
形しうる筒体のディップ成形方法及びその成形型を提供
することを目的とするものである。An object of the present invention is to provide a dip-forming method for a cylindrical body that can form a cylindrical body through a single process of dip molding, and a mold for the same.
すなわち１本発明によるディップ成形方法は、成形型を
、塗布液面に対して垂直に、がっ下端面に設けた空気溜
めの空気を逃さないように浸漬して、塗布液を、成形型
の空気溜めを除く外表面に膜状に付着させ、成形型を引
上げた後、塗布膜を成形型より剥がすことを特徴とする
ものである。In other words, in the dip molding method according to the present invention, the mold is immersed perpendicularly to the surface of the coating liquid so that the air in the air reservoir provided on the lower end surface does not escape, and the coating liquid is applied to the mold. It is characterized in that it is applied in the form of a film on the outer surface excluding the air reservoir, and after the mold is pulled up, the coating film is peeled off from the mold.
また、本発明によるディップ成形型は、下端面に、浸漬
時に塗布液の侵入を防止するための下向き凹孔状の空気
溜めを設けてなるものである。Further, the dip mold according to the present invention is provided with an air reservoir in the form of a downward concave hole on the lower end surface to prevent the coating liquid from entering during dipping.
以下、本発明による成形型及びディップ成形方法の実施
要領を１図面を参照しながら説明する。EMBODIMENT OF THE INVENTION Hereinafter, the implementation outline of the mold and dip molding method according to the present invention will be explained with reference to one drawing.
第２図に示す（１）は、絶縁スリーブの成形型で、円柱
からなる胴部（１ａ）の下端に、テーパ部（ｌｂ）を介
して小径部（Ｉｃ）が連設されている。(1) shown in FIG. 2 is a mold for an insulating sleeve, in which a small diameter portion (Ic) is connected to the lower end of a cylindrical body portion (1a) via a tapered portion (lb).
小径部（ｌｃ）の下面外周縁には、環状壁（１ｄ）が連
設され、下面が開口する下向き凹孔状の空気溜め（２）
が形成されている。An annular wall (1d) is connected to the outer periphery of the lower surface of the small diameter portion (lc), and an air reservoir (2) with a downward concave hole opening at the lower surface.
is formed.
胴部（１ａ）の上端面中央には、取付杆（１ｅ）が立設
され、この取付杆（ｌａ）の端面に切設されためねじ（
３）を介して、成形型（１）を昇降装置（４）に取付け
うるようになっている。A mounting rod (1e) is erected at the center of the upper end surface of the body (1a), and a female screw (1e) is cut into the end surface of this mounting rod (la).
3), the mold (1) can be attached to the lifting device (4).
絶縁スリーブを製造するには、まず、第１図に示すよう
に、成形型（１）を、昇降装置（４）の下面に装着し、
これを、すでに知られた一般的な溶融した合成樹脂から
なる塗布液（５）に、成形型（１）の液面に対し垂直方
向に降下させて、静かに浸漬させる。To manufacture an insulating sleeve, first, as shown in Fig. 1, a mold (1) is attached to the lower surface of the lifting device (4).
This is lowered vertically to the liquid level of the mold (1) and gently immersed in a coating liquid (5) made of a commonly known molten synthetic resin.
浸漬後には、成形型（１）の塗布液中の外表面に、塗布
液（５）が付着して薄肉の樹脂膜（６）が形成される。After dipping, the coating liquid (5) adheres to the outer surface of the mold (1) in the coating liquid to form a thin resin film (6).
この樹脂膜（６）の下端面は、成形型（１）の空気溜め
（２）内に残留する空気（７）に邪魔されて、環状壁（
１ｄ）の内壁に付着する上向きの環状突壁（６ａ）が形
成されるが、塗布液（５）は、空気溜め（２）の上面に
は達しない。The lower end surface of this resin film (6) is obstructed by the air (7) remaining in the air reservoir (2) of the mold (1), and the annular wall (
An upward annular projecting wall (6a) is formed that adheres to the inner wall of the air reservoir (1d), but the coating liquid (5) does not reach the upper surface of the air reservoir (2).
次に、成形型（１）を、塗布液（５）から引き上げ、成
形型（１）と樹脂膜（６）との間に、空気を吹き込んで
離型させる。Next, the mold (1) is lifted from the coating liquid (5), and air is blown between the mold (1) and the resin film (6) to release the mold.
このような成形方法により、第３図に示すように、開口
（８）縁に内方を向く環状突ｒｉ（６ａ）を有する筒状
の絶縁スリーブ（９）が得られる。By such a molding method, as shown in FIG. 3, a cylindrical insulating sleeve (9) having an inwardly directed annular projection ri (6a) on the edge of the opening (8) is obtained.
上述した実施例では、筒体を、上下に開口する絶縁スリ
ーブとしたが、これに代わり、有底円筒状のものも製造
できる。また、複数の開口を有する筒体も１本発明によ
るディップ成形方法で製造することができる。In the embodiments described above, the cylindrical body is an insulating sleeve with openings at the top and bottom, but instead of this, a cylindrical body with a bottom can also be manufactured. Furthermore, a cylindrical body having a plurality of openings can also be manufactured by the dip molding method according to the present invention.
本発明による筒体のディップ成形方法によれば。 According to the method for dip forming a cylinder according to the present invention.
成形型を塗布液に浸漬するだけで、筒体を成形できるた
め、製造工程が簡単となる。The manufacturing process is simplified because the cylindrical body can be formed by simply dipping the mold into the coating liquid.
また、ディップ成形型は、下端面に孔加工をするだけで
よいため、低コストで製作できる。In addition, the dip mold can be manufactured at low cost because it is only necessary to make a hole in the lower end surface.
第１図は、本発明方法の実施要領を説明するための一部
切欠縦断面図、
第２図は１本発明による成形型の一実施例を示す正面図
、
第３図は、本発明により成形される絶縁スリーブの縦断
面図、 ゛
第４図は、従来のディップ成形方法を示す縦断面図、
第５図は、従来の絶縁スリーブの切断箇所を示す縦断面
図である。
（１）成形型 （１ａ）胴部
（１ｃ）小径部 （ｌｄ）環状壁（２）空気溜
め （３）めねじ
（４）昇降装置 （５）塗布液
（６）樹脂膜 （７）空気
（８）開口 （９）絶縁スリーブ第１図
第２図
、７３
コ゛−
第５図
５ラツ
ｎ′FIG. 1 is a partially cutaway vertical cross-sectional view for explaining the implementation procedure of the method of the present invention, FIG. 2 is a front view showing an embodiment of a mold according to the present invention, and FIG. FIG. 4 is a vertical cross-sectional view showing a conventional dip molding method; FIG. 5 is a vertical cross-sectional view showing cutting points of a conventional insulating sleeve. (1) Molding mold (1a) Body (1c) Small diameter part (ld) Annular wall (2) Air reservoir (3) Female thread (4) Lifting device (5) Coating liquid (6) Resin film (7) Air ( 8) Opening (9) Insulating sleeve Fig. 1 Fig. 2, 73 Co. - Fig. 5 5 lats n'
Claims (2)
に設けた空気溜めの空気を逃さないように浸漬して、塗
布液を、成形型の空気溜めを除く外表面に膜状に付着さ
せ、成形型を引上げた後、塗布膜を成形型より剥がすこ
とを特徴とする筒体のディップ成形方法。(1) Immerse the mold perpendicularly to the surface of the coating solution so that the air in the air reservoir provided on the lower end surface does not escape, and apply the coating solution to the outer surface of the mold except for the air reservoir. A dip-molding method for a cylindrical body, characterized in that the coated film is attached to the mold, the mold is pulled up, and then the coating film is peeled off from the mold.
の下向き凹孔状の空気溜めを設けたことを特徴とするデ
ィップ成形型。(2) A dip mold characterized in that the lower end surface is provided with an air reservoir in the form of a downward concave hole to prevent the coating liquid from entering during dipping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8994787A JPS63256412A (en) | 1987-04-14 | 1987-04-14 | Dip molding of cylindrical body and mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8994787A JPS63256412A (en) | 1987-04-14 | 1987-04-14 | Dip molding of cylindrical body and mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63256412A true JPS63256412A (en) | 1988-10-24 |
| JPH0476287B2 JPH0476287B2 (en) | 1992-12-03 |
Family
ID=13984899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8994787A Granted JPS63256412A (en) | 1987-04-14 | 1987-04-14 | Dip molding of cylindrical body and mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63256412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7322813B2 (en) * | 2002-05-23 | 2008-01-29 | Applicont, Llc | Technology of production of elastomeric sleeves |
-
1987
- 1987-04-14 JP JP8994787A patent/JPS63256412A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7322813B2 (en) * | 2002-05-23 | 2008-01-29 | Applicont, Llc | Technology of production of elastomeric sleeves |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0476287B2 (en) | 1992-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |