JPH021236B2 - - Google Patents
Info
- Publication number
- JPH021236B2 JPH021236B2 JP58192954A JP19295483A JPH021236B2 JP H021236 B2 JPH021236 B2 JP H021236B2 JP 58192954 A JP58192954 A JP 58192954A JP 19295483 A JP19295483 A JP 19295483A JP H021236 B2 JPH021236 B2 JP H021236B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- surface layer
- cavity
- electroforming
- mother
- 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.)
- Expired - Lifetime
Links
- 239000002344 surface layer Substances 0.000 claims description 19
- 239000011148 porous material Substances 0.000 claims description 16
- 238000005323 electroforming Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 229920002050 silicone resin Polymers 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 description 21
- 239000007924 injection Substances 0.000 description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 238000007666 vacuum forming Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は通気用の細孔をキヤビテイに貫通形成
した電鋳加工によつて製作される成形の製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a molding made by electroforming in which a cavity is formed with pores for ventilation.
例えば電鋳加工により製作される成形型は表面
の凹凸形状が複雑な成形品を製作する場合に用い
られるものであるが、成形型にはインジエクシヨ
ン成形やブロー成形の場合には空気抜孔を、また
真空成形の場合には吸引孔を設ける必要がある。
そこで、従来はこれらの孔を形成するために電鋳
加工後にドリルによつて孔開を行つていたが成形
型の表面形状は成形品の表面とは逆な凹凸形状を
有するから、ドリルによつて形成した孔が成形品
の凸部に相当する位置となつて成形品の外形が見
苦しいものとなり易く、又、成形品の外形を向上
させるためには孔の径を小として孔の個数を増加
させる必要があるが、小径の孔を多数ドリルによ
つて孔開する作業は非常に面倒で成形型の製造コ
ストが非常に高くなるという問題がある。 For example, molds manufactured by electroforming are used to manufacture molded products with complex surface irregularities, but molds must have air vents or holes for injection molding or blow molding. In the case of vacuum forming, it is necessary to provide suction holes.
Conventionally, these holes were formed using a drill after electroforming, but since the surface of the mold has an uneven shape that is opposite to the surface of the molded product, it is difficult to use a drill. As a result, the holes formed are located at positions corresponding to the convex portions of the molded product, and the external shape of the molded product tends to become unsightly.In addition, in order to improve the external appearance of the molded product, it is necessary to reduce the diameter of the holes and reduce the number of holes. However, there is a problem in that the work of drilling a large number of small-diameter holes with a drill is very troublesome, and the manufacturing cost of the mold becomes very high.
本発明は上記した事情に鑑みてなされたもの
で、その目的は、通気用の細孔をキヤビテイに容
易に貫通形成することができ、製造コステを大巾
に低減できるようにした電鋳加工によつて製作さ
れる成形型の製造方法を提供するにある
以下本発明の一実施例について図面を参照しな
がら説明する。 The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide an electroforming process that allows ventilation holes to be easily formed through the cavity and to greatly reduce manufacturing costs. An embodiment of the present invention will be described below with reference to the drawings.
第１図において、１は木材，プラスチツク或い
は金属等で製作される原型で、これの表面部２に
は図示しない成形品の外形形状と合致した凸部２
ａ及び凹部２ｂが形成されている。一例として表
面が皮革模様の成形品を製作する場合には原型１
の表面に天然の皮革を貼着することが行なわれ
る。 In Fig. 1, reference numeral 1 denotes a model made of wood, plastic, metal, etc., and the surface part 2 of this model has a protrusion 2 (not shown) that matches the external shape of the molded product.
a and a recess 2b are formed. For example, when producing a molded product with a leather pattern on the surface, the master 1
Natural leather is pasted onto the surface of the material.
第２図において、３は雌型で、これは原型１を
適宜の枠内に入れて、まず原型１の表面にシリコ
ン樹脂等の軟質部材を流し込んで所定厚さの表面
層４を形成し、次に枠内にエポキシ樹脂等の充填
材５を流し込んで全体を硬化させ、硬化後原型１
を離型させることによつて形成されたもので、表
面層４の凹部４ａ及び凸部４ｂは原型１とは逆の
凹凸形状を呈している。 In FIG. 2, 3 is a female mold, in which the prototype 1 is placed in an appropriate frame, and a soft material such as silicone resin is first poured onto the surface of the prototype 1 to form a surface layer 4 of a predetermined thickness. Next, filler 5 such as epoxy resin is poured into the frame and cured as a whole, and after hardening, the prototype 1
The concave portions 4a and convex portions 4b of the surface layer 4 have an uneven shape that is opposite to that of the original mold 1.
第３図において、６は細孔６ａを有する通気筒
体として注射針で、これの一端部たる先端部を原
型１を離型させた雌型３の表面層４に所定長さ刺
して該注射針６の他端部たる基端部が表面層４よ
り突出した状態に装着する。この場合、注射針６
を刺す位置は、後述するキヤビテイに通気孔を形
成したい部分で凸部４ｂに相当する部分が好まし
い。また、注射針６はステンレス製のもので、基
端部に連結部６ｂを有している。 In FIG. 3, reference numeral 6 denotes a syringe needle as a ventilating body having a pore 6a, and the tip end of this needle is pierced for a predetermined length into the surface layer 4 of the female mold 3 from which the master mold 1 has been released. The needle 6 is attached so that its other end, the proximal end, protrudes from the surface layer 4. In this case, the injection needle 6
It is preferable to pierce the hole at a portion corresponding to the convex portion 4b where a ventilation hole is to be formed in the cavity, which will be described later. The injection needle 6 is made of stainless steel and has a connecting portion 6b at its base end.
第４図において、７は雌型３の表面層４の外表
面に例えばエポキシ樹脂等の型構成材料を順に付
着させて所定厚さに積層し、更にエポキシ樹脂そ
の他の充填材を充填してなる電鋳加工用の母型
で、注射針６の基端部の連結部６ｂが該母型７の
充填材中に埋設された状態になつている。そし
て、斯様にして製作された母型７は型構成材及び
充填材が固化した後に雌型３の表面層４から離型
されるが、この時注射針６は母型７に一体化され
て雌型３の表面層４から抜き取られる。そして、
この場合、雌型３の表面層４が軟質部材で形成さ
れているから、母型７の型抜き方向と注射針６の
指向方向とが合致していない場合でも、表面層４
及び注射針６の夫々の弾性変形によつても注射針
６が表面層４から抜取られるようになり、従つ
て、雌型３から型抜きされた母型７は表面から注
射針６の各先端部を夫々外方に所定長突出した状
態を呈している（第５図参照）。このようにして、
型抜きされた母型７の表面の凸部７ａ及び凹部７
ｂの凹凸形状は雌型３とは逆になり原型１と合致
した形状を呈しており、各注射針６は凹部７ｂか
ら外方に突出した状態を呈している。 In FIG. 4, 7 is formed by sequentially adhering mold constituent materials such as epoxy resin to the outer surface of the surface layer 4 of the female mold 3 and laminating them to a predetermined thickness, and then filling the outer surface with epoxy resin or other filler. This is a mother mold for electroforming, and the connecting portion 6b of the proximal end of the injection needle 6 is embedded in the filling material of the mother mold 7. Then, the mother mold 7 manufactured in this manner is released from the surface layer 4 of the female mold 3 after the mold constituent materials and filler have solidified, but at this time, the injection needle 6 is integrated into the mother mold 7. Then, it is extracted from the surface layer 4 of the female mold 3. and,
In this case, since the surface layer 4 of the female die 3 is formed of a soft material, even if the direction of cutting out the mother die 7 and the direction of the injection needle 6 do not match, the surface layer 4
The injection needles 6 are also pulled out from the surface layer 4 due to the elastic deformation of each of the injection needles 6. Therefore, the mother mold 7 cut out from the female mold 3 removes each tip of the injection needles 6 from the surface. Each of the sections protrudes outward by a predetermined length (see Fig. 5). In this way,
Convex portions 7a and concave portions 7 on the surface of the die-cut mother die 7
The uneven shape of b is opposite to that of the female mold 3 and matches that of the original mold 1, and each injection needle 6 projects outward from the recess 7b.
而して、以上のようにして雌型３３から離型さ
れた母型７の表面部には周知のように導電加工が
施こされた後に電鋳槽において電鋳加工がなさ
れ、該母型７の表面部に例えばニツケルが折出さ
れ所定厚さの電鋳金属層からなるキヤビテイ８が
形成される（第６図参照）。尚、注射針６の最先
端には予めマスキングを施してニツケルが電着し
ないようにしておけば該注射針６の細孔６ａが閉
塞されることが防止されるが、マスキングを省略
し、代りに電鋳金属によつて閉塞された注射針６
６の最先端部を電鋳加工後切除することによつ
て、注射針６の細孔６ａを開口させるようにして
もよい。このようにして電鋳加工を終了すると、
注射針６はキヤビテイ８を貫通した状態になり、
貫通した部分では注射針６の周囲にニツケルで形
成されたキヤビテイ８が電着により密着し、両者
が一体的にに結着されている（第６図参照）。 The surface of the mother mold 7 released from the female mold 33 as described above is subjected to conductive processing as is well known, and then electroformed in an electroforming tank. For example, nickel is deposited on the surface of 7 to form a cavity 8 made of an electroformed metal layer of a predetermined thickness (see FIG. 6). Note that if the tip of the injection needle 6 is masked in advance to prevent nickel from being electrodeposited, the pore 6a of the injection needle 6 can be prevented from being blocked, but masking may be omitted and instead Syringe needle 6 blocked by electroformed metal
The pore 6a of the injection needle 6 may be opened by cutting off the tip end of the injection needle 6 after electroforming. When electroforming is finished in this way,
The injection needle 6 is now in a state where it has penetrated the cavity 8,
At the penetrated portion, a cavity 8 made of nickel is closely attached to the periphery of the injection needle 6 by electrodeposition, and the two are integrally bonded (see FIG. 6).
このようにしたキヤビテイ８が形成されたら、
母型７を加熱して硬化したり或いは薬品処理によ
つて溶解されるようにしてキヤビテイ８から離型
させる（第７図参照）。この場合、キヤビテイ８
の凹部８ａ及び凸部８ｂの形状は原型１及び母型
７の凹凸形状と逆で、雌型３と合致した凹凸形状
を呈しており、注射針６は凸部８ｂと対応する位
置においてキヤビテイ８を貫通しているから、キ
ヤビテイ８から母型７を離型させた後の注射針６
を凸部８ｂの表面に沿つて切断し、細孔６ａを有
するキヤビテイ８が完成する（第８図及び第９図
参照）。そして、このようにして製作されたキヤ
ビテイ８は図示しない型枠にセツトされて各種成
形用の成形型になされるが、インジエクシヨン成
形型の高い成形型に使用する時にはキヤビテイ８
の裏面側に多孔質な層を形成してから合成樹脂や
亜鉛等の充填材を裏打ちし、上述の多孔質な層を
介して細孔６ａを大気或いは吸引装置に連通させ
るようにし、また、真空成形やブロー成形等の成
形圧が低い成形型に使用する時にはキヤビテイ８
の裏面側において細孔６ａを大気或いは吸引装置
に直接連通するようにすればよい。 Once the cavity 8 is formed in this way,
The mother mold 7 is cured by heating or melted by chemical treatment, and then released from the cavity 8 (see FIG. 7). In this case, cavity 8
The shape of the concave part 8a and the convex part 8b is opposite to the concave-convex shape of the master mold 1 and the mother mold 7, and has a concave-convex shape that matches the female mold 3, and the injection needle 6 is inserted into the cavity 8 at the position corresponding to the convex part 8b. The injection needle 6 after the mold 7 is released from the cavity 8
is cut along the surface of the convex portion 8b to complete the cavity 8 having the pores 6a (see FIGS. 8 and 9). The cavity 8 manufactured in this way is set in a mold frame (not shown) and used as a mold for various types of molding, but when used in a high injection molding mold, the cavity 8 is
After forming a porous layer on the back side of the holder, it is lined with a filler such as synthetic resin or zinc, and the pores 6a are communicated with the atmosphere or a suction device through the above-mentioned porous layer, and Cavity 8 is used when using molds with low molding pressure such as vacuum forming and blow molding.
The pores 6a may be directly communicated with the atmosphere or a suction device on the back side of the holder.
上記構成によれば、注射針６を雌型３の軟質部
材にて形成された表面層４に刺すという簡単な工
程により細孔６ａをキヤビテイ８に形成すること
ができ、細孔６ａを多数設ける場合でもドリルに
よつてキヤビテイに孔開を行う場合に比べて作業
を著しく簡単化し得る。そして、注射針６を刺す
位置を表面層４の凸部４ｂに合致させると細孔６
ａはキヤビテイ８の凸部８ｂと対応する位置にな
つて成形の凹部と合致することになり、細孔６ａ
の位置を成形品表面の目立たない位置に極めて容
易に設定でき、また、細孔６ａを径寸法も極めて
容易に微少な寸法に設定して得て、表面状態の優
れた成形品を得ることが可能となる。 According to the above configuration, the pores 6a can be formed in the cavity 8 by a simple process of piercing the injection needle 6 into the surface layer 4 formed of the soft member of the female mold 3, and a large number of pores 6a are provided. Even in some cases, the work can be significantly simplified compared to drilling a hole in the cavity with a drill. Then, when the position where the injection needle 6 is inserted matches the convex portion 4b of the surface layer 4, the pore 6
a is located at a position corresponding to the convex part 8b of the cavity 8 and matches the concave part of the molding, and the pore 6a
The position of the pores 6a can be set very easily at an inconspicuous position on the surface of the molded product, and the diameter of the pores 6a can also be set extremely easily to a minute size, making it possible to obtain a molded product with an excellent surface condition. It becomes possible.
尚、注射針６の代りに細孔を有する一端が尖つ
た金属製の筒体を用いるようにしてもよい。 Incidentally, instead of the injection needle 6, a metal cylinder having a small hole and a pointed end may be used.
本発明は以上の説明から明らかなように、通気
用の細孔をキヤビテイに容易に貫通形成すること
ができ、製造コストを大巾に低減できるようにし
た電鋳加工によつて製作される成形型の製造方法
を提供できる。 As is clear from the above description, the present invention is a molded product manufactured by electroforming that allows ventilation pores to be easily formed through the cavity and greatly reduces manufacturing costs. A method for manufacturing molds can be provided.
図面は本発明の一実施例を示すものであり、第
１図乃至第７図は成形型の製作過程を示す縦断面
図、第８図はキヤビテイの縦断面図、第９図はキ
ヤビテイの要部の拡大縦断面図である。
図面中、１は原型、３は雌型、４は表面層、６
は注射針（通気筒体）、６ａは細孔、７は母型、
８はキヤビテイである。
The drawings show one embodiment of the present invention, and FIGS. 1 to 7 are longitudinal sectional views showing the manufacturing process of the mold, FIG. 8 is a longitudinal sectional view of the cavity, and FIG. FIG. In the drawings, 1 is the original mold, 3 is the female mold, 4 is the surface layer, and 6
is the injection needle (ventilation body), 6a is the pore, 7 is the matrix,
8 is the cavity.
Claims (1)
表面層がシリコン樹脂等の軟質部材からなる雌型
を製作する工程と、前記雌型の表面層に細孔を有
する筒体の一端部を所定長さ刺して該筒体の他端
部を該表面層より突出した状態に装着する工程
と、前記雌型の表面層の外表面に所定厚さの型構
成材料を付着させ前記雌型の表面層から突出する
筒体の他端部を一体的に埋設した状態の電鋳加工
用の母型を製作する工程と、前記雌型から母型を
離型させることにより該母型とともに前記雌型の
表面層に刺した筒体を抜き取つて該筒体の他端部
が前記母型に埋設され且つ該筒体の一端部が外方
に突出する状態の母型を得る工程と、前記母型の
表面に電鋳加工により金属を折出させ該母型より
突出する筒体の外表面に前記電鋳加工により折出
された金属を一体的に付着したキヤビテイを形成
する工程と、前記キヤビテイから前記母型を離型
させる工程とからなる電鋳加工によつて製作され
る成形型の製造方法。1. A step of manufacturing a female mold having a concavo-convex shape opposite to that of the mother mold for electroforming, and a surface layer of which is made of a soft material such as silicone resin, and forming one end of a cylinder having pores in the surface layer of the female mold. A step of pricking the cylindrical body to a predetermined length so that the other end of the cylindrical body protrudes from the surface layer, and attaching a mold constituent material of a predetermined thickness to the outer surface of the surface layer of the female mold. A step of manufacturing a mother mold for electroforming in which the other end of the cylindrical body protruding from the surface layer is integrally buried, and a step of releasing the mother mold from the female mold to remove the female mold along with the mother mold. a step of extracting the cylinder stuck in the surface layer of the mold to obtain a matrix in which the other end of the cylinder is embedded in the matrix and one end of the cylinder projects outward; forming a cavity on the outer surface of a cylindrical body protruding from the matrix by depositing metal on the surface of the matrix by electroforming; A method for manufacturing a mold manufactured by electroforming, comprising a step of releasing the mother mold from a cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19295483A JPS6086290A (en) | 1983-10-14 | 1983-10-14 | Mold fabricated by electroforming processing and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19295483A JPS6086290A (en) | 1983-10-14 | 1983-10-14 | Mold fabricated by electroforming processing and preparation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6086290A JPS6086290A (en) | 1985-05-15 |
| JPH021236B2 true JPH021236B2 (en) | 1990-01-10 |
Family
ID=16299783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19295483A Granted JPS6086290A (en) | 1983-10-14 | 1983-10-14 | Mold fabricated by electroforming processing and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6086290A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS592114Y2 (en) * | 1979-11-27 | 1984-01-20 | 池上化研工業株式会社 | Mother mold for electroforming |
-
1983
- 1983-10-14 JP JP19295483A patent/JPS6086290A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6086290A (en) | 1985-05-15 |
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