JPH05192120A - Original mold for producing elastic mold - Google Patents
Original mold for producing elastic moldInfo
- Publication number
- JPH05192120A JPH05192120A JP3323411A JP32341191A JPH05192120A JP H05192120 A JPH05192120 A JP H05192120A JP 3323411 A JP3323411 A JP 3323411A JP 32341191 A JP32341191 A JP 32341191A JP H05192120 A JPH05192120 A JP H05192120A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- elastic
- conical
- main body
- original
- 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
Landscapes
- Formation And Processing Of Food Products (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、チョコレ−ト、ゼリ
−、ワックスなどで種々の形状の成形品を成形するため
の弾性成形型を製造するのに用いる元型に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a master mold used for producing an elastic mold for molding molded articles of various shapes with chocolate, jelly, wax and the like.
【０００２】[0002]
【従来の技術】人形、動物、花模様などの種々の形状の
チョコレ−ト成形品、ゼリ−成形品などが知られてい
る。そして、これらの成形品は従来割型を用いて成形さ
れていたが、近年、弾性成形型を用いて成形する方法が
採用されている。2. Description of the Related Art Chocolate molded articles and jelly molded articles of various shapes such as dolls, animals and flower patterns are known. Although these molded products have been conventionally molded using a split mold, in recent years, a method of molding using an elastic mold has been adopted.
【０００３】この弾性成形型は、人形、動物、花模様な
ど所望の形状に成形された弾性膜からなる中空の本体型
部と、この本体型部の開口部に連設され、本体型部を支
持するための弾性膜からなる支持部とで構成されてい
る。この弾性成形型を用いて成形するには、支持部の端
部を例えば環状にした枠体で保持し、本体型部を支持体
と共に吊り下げた状態となし、本体型部の開口部から流
動状態の成形材料を本体型部に流し込み充填し、次いで
冷却、加熱などして本体型部内に流し込んだ成形材料を
固化させ、その後、この固化した成形品を本体型部より
取り出す方法が採られている。This elastic molding die is connected to a hollow main body part formed of an elastic film formed into a desired shape such as a doll, an animal, and a flower pattern, and an opening part of the main body part to connect the main body part. And a support portion made of an elastic film for supporting. To mold using this elastic mold, the end of the support part is held by, for example, an annular frame body, the main body mold part is suspended with the support body, and it flows from the opening part of the main body mold part. A method is adopted in which the molding material in the state is poured into the main body mold section to be filled, then the molding material poured into the main body mold section is solidified by cooling or heating, and then the solidified molded product is taken out from the main body mold section. There is.
【０００４】この固化した成形品は、本体型部を空気圧
差を利用して膨張させて開口部より取り出す。すなわ
ち、例えば、通気口を備えたカップを弾性成形型全体に
被せ、通気口からカップ内の空気を吸引してカップ内を
減圧し弾性成形型の本体型部を膨張させたり、又は通気
口を備えたカップを弾性成形型の支持部側に被せ、通気
口からカップ内に空気を圧入してカップ内を加圧して弾
性成形型の本体型部を膨張させたり、或はこの両者を併
用して弾性成形型の本体型部を膨張させて、成形品を本
体型部から剥がし、膨張拡大した開口部より排出させる
方法で行なわれている。The solidified molded product is taken out from the opening by expanding the main body mold portion by utilizing the air pressure difference. That is, for example, a cup provided with a vent is put over the entire elastic molding die, air in the cup is sucked from the vent to depressurize the inside of the cup to expand the main body of the elastic molding die, or The cup provided is covered on the support side of the elastic molding die, and air is forced into the cup from the ventilation hole to pressurize the inside of the cup to expand the main body of the elastic molding die, or both are used together. In this method, the main body mold portion of the elastic molding die is inflated, the molded product is peeled from the main body mold portion, and is discharged from the expanded and expanded opening.
【０００５】そして、上記の弾性成形型としては種々の
形状のものが知られているが、その一つとして、開口部
を有する本体型部と、該開口部に連続して外方へ円錐状
に広がる膜状の円錐部と、該円錐部の外周縁に設けられ
た口巻き部とを有する弾性成形型が知られている（特開
平３−１４２２０４号公報）。この弾性成形型は、その
本体型部を支持し、固定する部分が円錐形であるため、
弾性成形型の支持枠への固定、成形材料の充填、成形品
の離型などの操作が円滑に行える。また口巻き部を有す
るため、弾性成形型の支持枠への着脱が容易である。Various types of elastic molding dies are known, and one of them is a body mold having an opening and a conical shape continuous to the opening and outward. There is known an elastic mold having a film-shaped conical portion that spreads over the outer periphery of the conical portion and a mouth-wrap portion provided on the outer peripheral edge of the conical portion (Japanese Patent Application Laid-Open No. 3-142204). This elastic mold has a conical shape for supporting and fixing the main mold part,
Operations such as fixing the elastic mold to the support frame, filling the molding material, and releasing the molded product can be performed smoothly. Also, since it has a mouthpiece, it is easy to attach and detach the elastic mold to the support frame.
【０００６】しかして、この弾性成形型は、陶磁器、ガ
ラス、合成樹脂などで作成された元型を用いて製造され
る。この元型は、弾性成形型の本体型部を成形する本体
型部成形部と、これに連続して外方へ円錐状に広がる円
錐部と、該円錐部に連続する円柱部とからなっている。
この元型を弾性材料溶液中に浸漬して元型の表面にゲル
状の弾性皮膜を形成する工程、元型の円柱部に形成され
た弾性皮膜を円錐部に向かって巻き込んで口巻き部を形
成する工程、前記弾性皮膜を乾燥・加硫させる工程、前
記口巻き部を本体型部成形部の方へ引っ張って弾性皮膜
の全体を元型から剥離する工程を行って、弾性成形型を
製造している。However, this elastic mold is manufactured by using a master mold made of ceramics, glass, synthetic resin or the like. This original mold is composed of a main body mold portion for molding a main body portion of an elastic molding die, a conical portion continuously expanding outward in a conical shape, and a cylindrical portion continuous with the conical portion. There is.
The step of immersing this original mold in the elastic material solution to form a gel-like elastic film on the surface of the original mold, the elastic film formed on the columnar part of the original mold is rolled up toward the conical part, An elastic molding die is manufactured by performing a step of forming, a step of drying and vulcanizing the elastic film, and a step of pulling the mouthpiece part toward the molding part of the main body mold part and peeling the entire elastic film from the original mold. is doing.
【０００７】しかしながら、この製造方法によって得ら
れた弾性成形型は、本体型部の開口部と円錐部の接合部
分が厚くなり易く、また円錐部と口巻き部との接合部分
が薄くなり易い。そのため上記方法で製造した弾性成形
型を用いると、前述した空気圧差を利用して弾性成形型
を膨張させる離型操作の際、薄い部分、即ち円錐部と口
巻き部との接合部が異常に膨らみ、一方膨らませたい本
体型部の開口部が厚くて膨らみにくいため、成形品の取
り出しが困難になり、離型操作が円滑に行えなことがあ
る。また、口巻部を支持枠に着脱操作したり、成形品の
離型操作する際に、口巻き部周辺に大きな応力が掛る
が、円錐部と口巻き部との接合部分が薄いと、その部分
が破れる危険がある。However, in the elastic molding die obtained by this manufacturing method, the joint portion between the opening of the main body mold portion and the conical portion is likely to be thick, and the joint portion between the conical portion and the mouth-wrap portion is likely to be thin. Therefore, when the elastic mold manufactured by the above method is used, the thin portion, that is, the joint portion between the conical portion and the mouth winding portion becomes abnormal during the mold releasing operation in which the elastic mold is expanded by utilizing the air pressure difference described above. Swelling, on the other hand, since the opening of the main body mold portion to be swollen is thick and difficult to swell, it may be difficult to take out the molded product, and the releasing operation may not be performed smoothly. In addition, when the mouthpiece is attached to or detached from the support frame, or when the molded product is released from the mold, a large stress is applied to the periphery of the mouthpiece, but if the conical portion and the mouthpiece are thin, There is a risk of breaking parts.
【０００８】また、この弾性成形型を用いて成形する方
法においては、空気圧差を利用して弾性成形型を膨張さ
せて離型操作する際、本体型部のみが円滑に膨らみ、支
持部は膨らまないのが好ましい。このような作用をする
弾性成形型にするには、支持部の膜厚を、本体型部の膜
厚より厚くする必要がある。上記特開平３−１４２２０
４号公報記載の元型を用いて弾性成形型を製造した場合
は、支持部の膜厚を、本体型部の膜厚より厚くすること
は困難である。Further, in the method of molding using this elastic molding die, when the elastic molding die is inflated by utilizing the air pressure difference and the releasing operation is performed, only the main body mold portion swells smoothly and the support portion swells. Preferably not. In order to obtain an elastic mold having such an action, it is necessary to make the film thickness of the support portion thicker than the film thickness of the main body die portion. JP-A-3-14220
When an elastic mold is manufactured using the master mold described in Japanese Patent No. 4, it is difficult to make the film thickness of the support part thicker than the film thickness of the main body mold part.
【０００９】[0009]
【発明が解決しようとする課題】本発明は、上記に鑑
み、本体型部の開口部と円錐部の接合部分及び円錐部と
口巻き部との接合部分が、他の部分と同じ厚さの弾性成
形型を製造するのに適した元型、更には支持部の膜厚が
本体型部の膜厚より厚い弾性成形型を製造するのに適し
た元型を提供することを目的とする。SUMMARY OF THE INVENTION In view of the above, the present invention has a joint portion between the opening portion and the conical portion of the main body mold portion and a joint portion between the conical portion and the mouthpiece portion having the same thickness as other portions. An object of the present invention is to provide a master mold suitable for manufacturing an elastic mold, and further, a master mold suitable for manufacturing an elastic mold in which the film thickness of the support portion is larger than the film thickness of the main body mold portion.
【００１０】[0010]
【課題を解決するための手段】本発明者らは、弾性成形
型の本体型部の開口部と円錐部の接合部分が厚くなり易
く、また円錐部と口巻き部との接合部が薄くなり易い原
因について種々究明した結果、その原因は元型にあるこ
とをつきとめ、この元型の形状を変えることによって、
前記欠点のない弾性成形型を得ることができることを知
見し、また元型の表面の状態によって膜厚を変え得るこ
とを知り、本発明を完成した。The present inventors have found that the joint between the opening of the main body of the elastic molding die and the conical portion is likely to be thick, and the joint between the conical portion and the mouthpiece is thin. As a result of various investigations on easy causes, it was found that the cause was in the original mold, and by changing the shape of this original mold,
The present inventors have completed the present invention by finding that an elastic mold without the above-mentioned defects can be obtained, and also knowing that the film thickness can be changed depending on the surface condition of the original mold.
【００１１】すなわち、本発明は開口部を有する中空の
本体型部と、該開口部に連続して外方へ円錐状に広がる
膜状の円錐部と、該円錐部の外周縁に設けられた口巻き
部とを有する弾性成形型を製造するための元型であっ
て、この元型は、本体型部成形部と、該本体型部成形部
に連続して外方へ円錐状に広がる円錐部と、該円錐部に
連続する円柱部とからなり、本体型部成形部と円錐部と
の接続部、並びに円錐部と円柱部との接続部が円弧を形
成していることを特徴とする弾性成形型製造用元型であ
り、また、この元型において、円錐部が粗面を形成して
いる弾性成形型製造用元型に係わる。That is, according to the present invention, a hollow main body mold portion having an opening portion, a film-like conical portion which continuously extends outward from the opening portion in a conical shape, and an outer peripheral edge of the conical portion are provided. A master mold for producing an elastic molding die having a mouthpiece, wherein the master mold has a main body mold portion and a cone which is continuous with the main body mold portion and spreads outward in a conical shape. And a columnar portion continuous with the conical portion, wherein the connecting portion between the main body mold portion and the conical portion and the connecting portion between the conical portion and the cylindrical portion form an arc. The present invention relates to an elastic molding die manufacturing master die, and also relates to an elastic molding die manufacturing master die in which a conical portion forms a rough surface.
【００１２】本発明を、その一例を示す図面を用いて詳
しく説明する。図１及び図２は弾性成形型製造用元型の
従来例である。図１は斜視図であり、図２はその正面図
である。１は本体型部成形部で、ここでは球状である
が、人形、動物、花模様などの所望の形状でもよい。２
は本体型部成形部１に連続して外方へ円錐状に広がる円
錐部、３は円錐部２に連続する円柱部である。Ａは本体
型部成形部１と円錐部２との接続部、Ｂは円錐部と円柱
部との接続部である。弾性成形型を製造するには、この
元型を、天然ゴムラテックス等の弾性材料液に円柱部の
中間まで浸漬し、引き上げ、元型の表面にゲル状の弾性
皮膜を形成し、次いで元型の円柱部に形成された弾性皮
膜を円錐部に向かって巻き込んで口巻き部を形成し、そ
の後弾性皮膜を乾燥・加硫させ、最後に口巻き部を本体
型部成形部の方へ引っ張って成形された弾性皮膜全体、
すなわち弾性成形型を元型から剥離する。The present invention will be described in detail with reference to the drawings showing an example thereof. 1 and 2 show a conventional example of an original mold for manufacturing an elastic molding die. 1 is a perspective view and FIG. 2 is a front view thereof. Reference numeral 1 denotes a main body mold portion, which is spherical here, but may have a desired shape such as a doll, an animal, or a flower pattern. Two
Is a conical part which is continuous with the main body mold part 1 and spreads outward in a conical shape, and 3 is a cylindrical part which is continuous with the conical part 2. A is a connecting portion between the main body mold forming portion 1 and the conical portion 2, and B is a connecting portion between the conical portion and the cylindrical portion. To manufacture an elastic mold, the master mold is dipped in an elastic material liquid such as natural rubber latex up to the middle of the cylindrical part and pulled up to form a gel elastic film on the surface of the master mold, and then the master mold. The elastic film formed on the columnar part of the is wound toward the conical part to form the mouth-wrapping part, then the elastic film is dried and vulcanized, and finally the mouth-wrapping part is pulled toward the molding part of the main body part. The entire formed elastic film,
That is, the elastic mold is separated from the original mold.
【００１３】図３は上記製造工程において、元型の円柱
部に形成された弾性皮膜を円錐部に向かって巻き込んで
口巻き部を形成した状態を示したものである。したがっ
て、この図３における弾性被膜は弾性成形型の形状を示
している。そして１’は弾性成形型の本体型部であり、
２’は弾性成形型の円錐部であり、３’は弾性成形型の
口巻部である。従来の元型を用いると、元型の本体型部
成形部１と円錐部２との接続部Ａが角ばって内側に凹ん
でいるため、元型を弾性材料液に浸漬して引き上げたと
き、この部分すなわち弾性成形型の本体型部の開口部に
弾性材料液が溜り易く、この部分の被膜が厚くなり易
い。また、元型の円錐部と円柱部との接続部Ｂも角ばっ
ているため、元型を弾性材料液に浸漬して引き上げたと
き、円錐部と円柱部の接続部の被膜が薄くなり易い。FIG. 3 shows a state in which, in the above manufacturing process, the elastic film formed on the cylindrical portion of the original mold is wound toward the conical portion to form the mouth-wrapped portion. Therefore, the elastic coating in FIG. 3 shows the shape of an elastic mold. 1'is the main body part of the elastic mold,
Reference numeral 2'denotes a conical portion of the elastic molding die, and 3'denotes a neck portion of the elastic molding die. When the conventional master mold is used, the connection part A between the main body mold part molding part 1 and the conical part 2 of the master mold is angularly recessed inward, so when the master mold is dipped in the elastic material liquid and pulled up. The elastic material liquid easily accumulates in this portion, that is, in the opening of the main body of the elastic forming die, and the coating film in this portion is likely to become thick. Further, since the connecting portion B between the conical portion and the cylindrical portion of the original die is also angular, when the original die is dipped in the elastic material liquid and pulled up, the coating film at the connecting portion between the conical portion and the cylindrical portion is likely to become thin. ..
【００１４】このように本体型部の開口部が厚く、また
円錐部と口巻き部との接合部分が薄い弾性成形型を用い
ると、前述したとおり、空気圧差を利用して弾性成形型
を膨張させる離型操作の際、円錐部と口巻き部との接合
部が異状に膨らみ、一方膨らませたい本体型部の開口部
が膨らまないため、離型操作が円滑に行えないことがあ
り、また、口巻部を支持枠に着脱操作したり、成形品の
離型操作する際に、円錐部と口巻き部との接合部分が破
れる危険がある。When an elastic mold having a thick opening in the main body and a thin joint between the conical portion and the mouthpiece is used, the elastic mold is expanded by utilizing the air pressure difference as described above. During the releasing operation, the joint between the conical part and the mouthpiece part swells abnormally, while the opening of the main body part that you want to inflate does not swell, so the releasing operation may not be performed smoothly. When the mouthpiece is attached to or detached from the support frame or the molded product is released from the mold, there is a risk of breaking the joint between the conical portion and the mouthpiece.
【００１５】そこで本発明では、本体型部成形部と円錐
部との接続部、並びに円錐部と円柱部との接続部とを角
ばらせずに、円弧を形成するようにした。図４は本発明
の弾性成形型製造用元型である。図４において、本体型
部成形部１と円錐部２との接続部Ａは内側に凹んだ円弧
で形成されている。この円弧の大きさは、本体型部成形
部１の大きさ、特にその開口部の大きさと円錐部２の立
上り角度等に依存するが、本体型部成形部１と円錐部２
との接続部Ａを角ばった形状にしないことが肝要であ
る。また、円錐部と円柱部との接続部Ｂは外側に凸の円
弧で形成されている。この円弧も円錐部２の立上り角度
に依存するが、円錐部と円柱部との接続部Ｂを角ばらな
い形状にする。この元型を用いると本体型部の開口部、
円錐部と口巻き部との接合部分が他の部分と同じ膜厚の
弾性成形型を製造することができる。したがって、上記
した如き欠点のない耐久性の良い弾性成形型を製造する
ことが出来る。Therefore, in the present invention, an arc is formed without making the connecting portion between the main body mold portion and the conical portion and the connecting portion between the conical portion and the cylindrical portion angular. FIG. 4 is a master mold for producing an elastic mold of the present invention. In FIG. 4, the connecting portion A between the main body mold portion 1 and the conical portion 2 is formed by an arc that is recessed inward. The size of the circular arc depends on the size of the main body part molding part 1, particularly the size of the opening and the rising angle of the conical part 2, but the size of the main body part molding part 1 and the conical part 2
It is important not to make the connecting portion A with and into a square shape. Further, the connecting portion B between the conical portion and the columnar portion is formed by an arc convex outward. Although this circular arc also depends on the rising angle of the conical portion 2, the connecting portion B between the conical portion and the cylindrical portion has a non-angular shape. With this original mold, the opening of the main mold,
It is possible to manufacture an elastic molding die in which the joint portion between the conical portion and the mouthpiece portion has the same film thickness as the other portions. Therefore, it is possible to manufacture an elastic mold having good durability without the above-mentioned defects.
【００１６】また、本発明では、元型の円錐部２の表面
を粗面に形成してもよい。元型を用いて弾性成形型を製
造するには、一般には、まず元型を硝酸カルシウム等の
弾性材料を凝固させる凝固液に浸漬し、元型に凝固液を
付着させてから、弾性材料液に浸漬して引き上げ、ゲル
化した弾性被膜を形成させるが、元型の円錐部２の表面
を粗面に形成しておくと、この部分に凝固液が他の部分
より多く付着するため、弾性被膜を厚く形成させること
ができる。したがって、支持部である円錐部の膜厚が、
本体型部の膜厚より厚い弾性成形型を製造することがで
きる。この弾性成形型を用いて成形する方法と、空気圧
差を利用して弾性成形型を膨張させる離型の際、本体型
部のみが円滑に膨らみ、支持部である円錐部は膨らまな
いのがで、効率よく離型が行える。In the present invention, the surface of the original conical portion 2 may be roughened. In order to manufacture an elastic mold using a master mold, generally, the master mold is first immersed in a coagulation liquid that coagulates an elastic material such as calcium nitrate, and the coagulation liquid is allowed to adhere to the master mold, and then the elastic material liquid is applied. It is dipped in and pulled up to form a gelled elastic film. However, if the surface of the original conical portion 2 is formed to be rough, the coagulating liquid adheres to this portion more than other portions, so the elastic The coating can be formed thick. Therefore, the film thickness of the conical portion that is the support portion is
It is possible to manufacture an elastic molding die that is thicker than the film thickness of the main body mold portion. During the method of molding using this elastic mold and the mold release in which the elastic mold is expanded by utilizing the air pressure difference, only the main body mold part swells smoothly and the conical part which is the support part does not expand. The mold can be released efficiently.
【００１７】元型の円錐部２の表面を粗面に形成するに
は、ガラス製、合成樹脂製の元型の場合はサンドブラス
ト、エッチングなどの手段を用いて行なう。また陶磁器
製の元型の場合は、円錐部２の部分に上薬を付けないで
焼くことによって行なうことが出来る。また粗面の程度
は１００メッシュ以上が好ましい。In order to form the rough surface of the conical portion 2 of the original mold, means such as sand blasting or etching is used for the original mold made of glass or synthetic resin. Further, in the case of a ceramics original mold, it can be performed by baking without adding a medicine to the conical portion 2. The degree of rough surface is preferably 100 mesh or more.
【００１８】[0018]
【実施例】陶磁器で図４に示すごとき形状の元型を作成
した。すなわち、本体型成形部１は球形状で、最大幅５
０ｍｍ、高さ３０ｍｍにした。円錐部２は低部の直径３
０ｍｍ、高さ２０ｍｍにした。また円柱部３は直径７０
ｍｍ、高さ５０ｍｍにした。そして、本体型成形１と円
錐部２との接続部Ａは、Ｒ４ｍｍとし、また、円錐部２
と円柱部３との接続部Ｂは、Ｒ２ｍｍとした。[Example] A master mold having a shape as shown in FIG. That is, the main body molding part 1 is spherical and has a maximum width of 5
The height was 0 mm and the height was 30 mm. Cone 2 has a lower diameter 3
The height was 0 mm and the height was 20 mm. In addition, the cylindrical portion 3 has a diameter of 70
mm and height 50 mm. The connecting portion A between the main body molding 1 and the conical portion 2 is R4 mm, and the conical portion 2
The connecting portion B between the columnar portion 3 and the columnar portion 3 was R2 mm.
【００１９】この元型を、まず２０％硝酸カルシウム
に、本体型成形１、円錐部２及び円柱部３の３０ｍｍが
浸されるように浸漬した。次いで、 天然ゴムラテックス（固形分として） １００重量部 硫黄 １重量部 ＺｎＯ １重量部 ジチオカルバメ−ト系加硫促進剤 ０．４重量部 チウラム系加硫促進剤 ０．４重量部 老化防止剤 １重量部 クレ− ２５重量部 安定剤 適量 の組成のラテックスに２〜１０分間浸漬し、引き上げ、
９０℃で３０分間乾燥した。次いで元型の円柱部に形成
された弾性皮膜を円錐部に向かって巻き込んで口巻き部
を形成し、その後弾性皮膜を元型から剥離し、１％のア
ンモニア水で抽出処理し、最後に９０℃で６０分間乾
燥、加硫した。かくして膜厚０．５ｍｍの均一な厚さの
弾性成形型が得られた。This master mold was first immersed in 20% calcium nitrate so that 30 mm of the main body mold 1, the conical portion 2 and the cylindrical portion 3 were immersed. Next, natural rubber latex (as solid content) 100 parts by weight Sulfur 1 part by weight ZnO 1 part by weight Dithiocarbamate vulcanization accelerator 0.4 parts by weight Thiuram vulcanization accelerator 0.4 parts by weight Anti-aging agent 1 part by weight Part Cray 25 parts by weight Stabilizer Immerse in a proper amount of latex for 2 to 10 minutes and pull up.
It was dried at 90 ° C. for 30 minutes. Next, the elastic coating formed on the cylindrical portion of the original mold is wound toward the conical portion to form a mouth-wrapped portion, then the elastic coating is peeled from the original mold, extracted with 1% ammonia water, and finally 90%. It was dried at 60 ° C. for 60 minutes and vulcanized. Thus, an elastic mold having a uniform thickness of 0.5 mm was obtained.
【００２０】また、陶磁器で元型を作る際、その円錐部
のみに上薬を掛けずに焼成した。円錐部のみが粗面の元
型が得られた。この元型を用いて上記と同じ方法で弾性
成形型を製造した。円錐部が０．７ｍｍであり、他の部
分は０．５ｍｍで均一な厚さを有する弾性成形型が得ら
れた。Further, when the master mold was made of ceramics, only the conical portion was fired without applying a glaze. A master mold having only a conical surface with a rough surface was obtained. An elastic molding die was manufactured using this original mold by the same method as described above. An elastic mold having a uniform thickness with a conical portion of 0.7 mm and other portions of 0.5 mm was obtained.
【００２１】[0021]
【発明の効果】本発明の弾性成形型製造用元型を用いる
と、本体型部の開口部、及び円錐部と口巻き部との接合
部分が他の部分と同じ膜厚の弾性成形型を製造すること
ができる。そしてこの弾性成形型を使用することによ
り、離型操作が円滑に行え、また、口巻部を支持枠に着
脱操作したり、成形品の離型操作する際に、円錐部と口
巻き部との接合部分が破れる危険がなくなる。更に、支
持部である円錐部の膜厚が、本体型部の膜厚より厚い弾
性成形型を製造することができ、この弾性成形型を用い
ると、効率よく離型操作を行うことができる。このよう
に本発明の弾性成形型製造用元型は、離型操作性、耐久
性に優れた弾性成形型を製造するのに適したものであ
る。EFFECTS OF THE INVENTION When the original mold for producing an elastic molding die of the present invention is used, an elastic molding die in which the opening portion of the main body die portion and the joint portion between the conical portion and the mouthpiece portion have the same film thickness as other portions is formed. It can be manufactured. By using this elastic molding die, the releasing operation can be performed smoothly, and the conical portion and the opening winding portion can be removed when the mouthpiece is attached to or detached from the support frame or the molded product is released. There is no risk of breaking the joint part of. Furthermore, it is possible to manufacture an elastic molding die in which the film thickness of the conical portion which is the support portion is thicker than the film thickness of the main body mold portion, and by using this elastic molding die, it is possible to efficiently perform the mold releasing operation. As described above, the original mold for producing an elastic mold of the present invention is suitable for producing an elastic mold having excellent mold release operability and durability.
【図１】従来の弾性成形型製造用元型の斜視図FIG. 1 is a perspective view of a conventional mold for manufacturing an elastic mold.
【図２】従来の弾性成形型製造用元型の正面図FIG. 2 is a front view of a conventional mold for manufacturing an elastic mold.
【図３】従来の弾性成形型製造用元型で弾性成形型を製
造する説明図FIG. 3 is an explanatory view of manufacturing an elastic mold with a conventional mold for manufacturing an elastic mold.
【図４】本発明の弾性成形型製造用元型の正面図FIG. 4 is a front view of a master mold for producing an elastic mold of the present invention.
１ 元型の本体型成形部、２ 元型の円錐部、３ 元型
の円柱部、１’ 弾性成形型の本体型部、２’ 弾性成
形型の円錐部、３’ 弾性成形型の口巻き部1-element main body mold part, 2-element cone part, 3-element cylinder part, 1'elastic mold part body part, 2'elastic mold cone part, 3'elastic mold mouthpiece Department
Claims (2)
部に連続して外方へ円錐状に広がる膜状の円錐部と、該
円錐部の外周縁に設けられた口巻き部とを有する弾性成
形型を製造するための元型であって、この元型は、本体
型部成形部と、該本体型部成形部に連続して外方へ円錐
状に広がる円錐部と、該円錐部に連続する円柱部とから
なり、本体型部成形部と円錐部との接続部、並びに円錐
部と円柱部との接続部が円弧を形成していることを特徴
とする弾性成形型製造用元型。1. A hollow main body mold part having an opening, a film-shaped conical part which continuously extends outward in a conical shape, and a mouth-wrap part provided on the outer peripheral edge of the conical part. A master mold for producing an elastic mold having: a main mold part molding part; and a conical part which is continuous with the main mold part molding part and spreads outward in a conical shape. An elastic molding die comprising a cylindrical portion continuous with the conical portion, wherein a connecting portion between the main body mold portion and the conical portion, and a connecting portion between the conical portion and the cylindrical portion form an arc. Original mold for manufacturing.
面が粗面である弾性成形型製造用元型。2. The original mold for producing an elastic molding die according to claim 1, wherein the surface of the conical portion is a rough surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3323411A JP3010538B2 (en) | 1991-12-06 | 1991-12-06 | Base mold for manufacturing elastic molds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3323411A JP3010538B2 (en) | 1991-12-06 | 1991-12-06 | Base mold for manufacturing elastic molds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05192120A true JPH05192120A (en) | 1993-08-03 |
| JP3010538B2 JP3010538B2 (en) | 2000-02-21 |
Family
ID=18154407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3323411A Expired - Lifetime JP3010538B2 (en) | 1991-12-06 | 1991-12-06 | Base mold for manufacturing elastic molds |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3010538B2 (en) |
-
1991
- 1991-12-06 JP JP3323411A patent/JP3010538B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3010538B2 (en) | 2000-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2730765A (en) | Apparatus for making hollow bodies with sound effects | |
| JPS6354396B2 (en) | ||
| GB2348847A (en) | Method of molding elastic doll heads and mold therefor | |
| US2568128A (en) | Blowing articles of rubber, etc. | |
| US2124871A (en) | Method and apparatus for molding articles | |
| US5207965A (en) | Method for manufacturing an elastic mold | |
| AU5209686A (en) | Baby pacifier | |
| JPH05192120A (en) | Original mold for producing elastic mold | |
| US2941277A (en) | Method of making casting molds for ceramic forms | |
| JPH0624941A (en) | Molding of rouge stick | |
| US2389009A (en) | Apparatus for making hollow rubber articles | |
| JP3054832B2 (en) | Method of forming coating film on inner wall surface of elastic mold | |
| EP0489799A1 (en) | Moulding method | |
| US2077752A (en) | Form for making inflatable articles | |
| JP2990572B2 (en) | Manufacturing method of balloon for ultrasonic endoscope | |
| US178479A (en) | Improvement in the manufacture of rubber articles | |
| JP3168522B2 (en) | Elastic mold | |
| JPH0780850A (en) | Master mold for molding elastic mold | |
| US2441905A (en) | Manufacture of seamless hollow articles from natural or synthetic rubber | |
| US2583683A (en) | Method of manufacturing rubber articles from sensitized latex | |
| US2099058A (en) | Inflatable article and process of producing the same | |
| JPS6024931A (en) | Manufacture of diaphragm | |
| AU6282490A (en) | Moulding method | |
| JPH08183991A (en) | Production of candle | |
| JP3232328B2 (en) | Method of molding using elastic mold |