JPH04147812A - Method of molding resin and coupling mold for the molding - Google Patents
Method of molding resin and coupling mold for the moldingInfo
- Publication number
- JPH04147812A JPH04147812A JP27300290A JP27300290A JPH04147812A JP H04147812 A JPH04147812 A JP H04147812A JP 27300290 A JP27300290 A JP 27300290A JP 27300290 A JP27300290 A JP 27300290A JP H04147812 A JPH04147812 A JP H04147812A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- silicone resin
- molding
- parts
- lower mold
- 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
- 238000000465 moulding Methods 0.000 title claims abstract description 32
- 229920005989 resin Polymers 0.000 title claims abstract description 14
- 239000011347 resin Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 5
- 230000008878 coupling Effects 0.000 title abstract 2
- 238000010168 coupling process Methods 0.000 title abstract 2
- 238000005859 coupling reaction Methods 0.000 title abstract 2
- 229920002050 silicone resin Polymers 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract 2
- 230000013011 mating Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、試作品またはロット当りの少量の樹脂成形品
を得る場合に最適な樹脂成形方法及びそれに使用する成
形用合わせ型に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a resin molding method that is optimal for obtaining a prototype or a small amount of resin molded products per lot, and a mating mold for use therein.
シリコン樹脂は、接着性がないために成形品の取り出し
が容易であり、また、耐熱性に優れているために、温度
上昇による熱変形が少ない等の利点から成形用型の材料
として広く用いられている。Silicone resin is widely used as a material for molding molds because of its non-adhesive properties, which make it easy to remove molded products, and its excellent heat resistance, which reduces thermal deformation due to temperature rises. ing.
ところで、従来のシリコン樹脂製の成形用合わせ型は、
上型と下型の２つに完全に分割された合わせ型構造のも
のである。By the way, the conventional molding mold made of silicone resin is
It has a mating structure that is completely divided into two parts: an upper mold and a lower mold.
しかしながら、この従来の成形用合わせ型で打上型と下
型との完全なる型合わせがむずかしい１づかりか、型合
わせが悪いと不良成形品ができたらまた１合わせ面間に
成形樹脂材料がはみ出して、成形品にパリが出たり、合
わせ目に段差ができたりする。 このパリや段差を取除
く作業及びその除去後の表面を仕上げるための後作業を
別に要して１手間がかかって作業能率が悪いという問題
力があった。However, with this conventional molding mold, it is difficult to completely match the upper mold and the lower mold, or if the mold matching is poor, a defective molded product can be produced, and the molding resin material may protrude between the mating surfaces. , cracks may appear on the molded product, or steps may appear at the joints. There is a problem in that the work of removing the cracks and steps and the subsequent work of finishing the surface after the removal are time consuming and inefficient.
本発明は、このような従来の技術が有する問題点に鑑み
なされたもので、その目的とするところは、上下の型合
わせが容易、かつ確実で、安価に製作でき、試作品また
はロット当りの少量生産の場合に最適な樹脂成形方法及
びそれに使用するシリコン樹脂製の成形用合わせ型を提
供することにある。The present invention was made in view of the problems of the conventional technology, and its purpose is to easily and reliably match the upper and lower molds, to manufacture at low cost, and to reduce the number of prototypes or lots per lot. An object of the present invention is to provide a resin molding method that is optimal for small-scale production and a molding mold made of silicone resin for use in the method.
この目的のため１本第１発明は、分割可能な筐体内に、
成形品の木型を宙吊状に定置して、該筐体を型締めした
後、筐体内に弾力性を有する溶融シリコン樹脂を注入し
て固め１次いで筐体内より取り出したシリコン樹脂体の
一部分を切断して中の木型を取り出し、パターン空間を
挾んで分割された上下型部を有し、かつ上下型部が離れ
ないようにその基部において一体に連設されている弾性
シリコン樹脂製の成形用合わせ型を得、該シリコン樹脂
製の成形用合わせ型に溶融成形樹脂を注入して成形品を
得る構成を特徴とし、また、本第２発明は、弾性を有す
るシリコン樹脂により形成のパターン空間を挾んで分割
された上型部と下型部が離れないようにその共通基部に
おいて一体に連設されている構成を特徴とするものであ
る５〔実施例〕
以下１本発明の実施例を図面を参照して説明する。For this purpose, the first invention provides, in a splittable housing,
After placing the wooden mold of the molded product in a suspended state and clamping the housing, molten silicone resin having elasticity is injected into the housing and hardened. Then, a part of the silicone resin body is taken out from inside the housing. A wooden mold made of elastic silicone resin is cut and the wooden mold inside is taken out, and the upper and lower mold parts are separated by sandwiching the pattern space, and the upper and lower mold parts are connected together at the base so that they do not separate. The second invention is characterized by a structure in which a molding mold is obtained, and a molded product is obtained by injecting a molten molding resin into the silicone resin molding mold. It is characterized by a structure in which the upper mold part and the lower mold part, which are separated by a space, are integrally connected at a common base so as not to be separated.5 [Embodiment] The following 1 embodiment of the present invention will be explained with reference to the drawings.
第１図から第６図は本発明に係る成形用型の一例を示す
もので、この成形用型１は、全体が弾力性を有するシリ
コン樹脂材で一体に形成され、成形品を得るパターン空
間２を挾んで分割された上型部３と下型部４を有すると
共に、これら上下型部３．４は離れないようにその共通
基部５において一体に連設されている。そして基部５に
は空気抜き用の孔６が設けられ、また基部５と対向する
水平切断面部には、溶融樹脂注入孔７が設けられている
。1 to 6 show an example of a molding die according to the present invention. This molding die 1 is integrally formed of a silicone resin material having elasticity, and has a pattern space for forming a molded product. It has an upper mold part 3 and a lower mold part 4 which are separated by sandwiching the upper and lower mold parts 3 and 4, and these upper and lower mold parts 3.4 are integrally connected at a common base 5 so as not to be separated. The base 5 is provided with an air vent hole 6, and the horizontal cut surface facing the base 5 is provided with a molten resin injection hole 7.
なお、図示しないが、上下型部の相対面部の適所には、
型合わせ時における合わせ位置決めのため、そのいずれ
か一方に例えば凹陥部を設け、いずれか他方に凹陥部に
嵌り込む凸部を設けることも可能である。Although not shown, at appropriate locations on the relative surfaces of the upper and lower mold parts,
For alignment positioning during mold matching, it is also possible to provide, for example, a concave portion on one of the two, and a convex portion that fits into the concave portion on the other.
上記の構成に係る成形用型１は、第７図から第１０図に
例示する工程によって得られる。The mold 1 having the above structure is obtained by the steps illustrated in FIGS. 7 to 10.
先ず、第７図および第８図に示すように、２つの分割可
能なアルミニューム製筐体１０．１１内に、成形品の木
型（母型）１２をその両端支持部１３．１４で筐体１０
．１１の接合部に支持して宙吊状に位置し、次いで、こ
の筐体１ｏ、１１を上下型締板１５．１６と四隅におけ
るボルト、ナツト１７．１８で型締めした後、筐体１ｏ
の注入孔１９より弾力性を有する溶融シリコン樹脂２゜
を注入してこれを固め、次いで、第９図に示すように、
型締めを解除し、筐体１Ｏ１１１を取り外してシリコン
樹脂体２１を取り出す。First, as shown in FIGS. 7 and 8, a wooden mold (mother mold) 12 for a molded product is placed in two divisible aluminum casings 10.11 using its supporting parts 13.14 at both ends. body 10
．． The casings 1o and 11 are then clamped with upper and lower mold clamping plates 15.16 and bolts and nuts 17.18 at the four corners, and then the casings 1o and 11 are placed in a suspended state.
2 degrees of elastic molten silicone resin is injected through the injection hole 19 and solidified, and then, as shown in FIG.
The mold clamping is released, the housing 1O111 is removed, and the silicone resin body 21 is taken out.
次いで、該シリコン樹脂体２１における溶融樹脂注入孔
７側の支持部１４の部分から水平に基部５を残して木型
（母型）１２の終わり部分までを切断線２２．２３を介
して上下型部３．４の２つに分断し、次いで、上下型部
３，４を基部５を支体として上下に開拡させて支持部１
３．１４と共に木型（母型）１２を取り出し、パターン
空間２を有し、かつ分割された上下型部３，４が離れな
いように共通基部５に一体に連設されている弾性シリコ
ン樹脂製の成形用合わせ型１を得る。Next, upper and lower molds are cut horizontally from the support part 14 on the molten resin injection hole 7 side of the silicone resin body 21 to the end of the wooden mold (matrix) 12, leaving the base 5, through the cutting lines 22 and 23. The upper and lower mold parts 3 and 4 are then expanded vertically using the base 5 as a support to form the support part 1.
3. Take out the wooden mold (matrix) 12 along with 14, and use the elastic silicone resin which has the pattern space 2 and is integrally connected to the common base 5 so that the divided upper and lower mold parts 3 and 4 do not separate. A molding mold 1 made of
そして、この弾性シリコン樹脂製の成形用合わせ型を型
締した後、その注入孔７より溶融樹脂をパターン空間２
に注入して硬化させ、型締め解除した後、上下型部３．
４を拡開させてパターン空間２より成形品を取り出し、
製品を得る。After the molding mold made of elastic silicone resin is clamped, the molten resin is poured into the pattern space 2 through the injection hole 7.
After injecting and curing the mold and releasing the mold clamping, the upper and lower mold parts 3.
4 and take out the molded product from pattern space 2.
Get the product.
しかして１本発明によれば、成形用合わせ型は全体シリ
コン樹脂製にして、かつ分割された上型部と下型部とが
離れないようにその共通基部において一体に連設されて
いるものであるから、上下の型合わせが容易に、かつ確
実になし得て、合わせ面がずれて製品の型が狂い不良品
が出たり、また、溶融成形樹脂材が上下型部の合わせ目
間にはみ出すという従来の問題点を解消することができ
。According to one aspect of the present invention, the molding mold is made entirely of silicone resin, and the divided upper mold part and lower mold part are integrally connected at their common base so that they do not separate. Therefore, the upper and lower molds can be easily and reliably matched, preventing the mating surfaces from shifting and causing the product to become misshapen and resulting in defective products.Furthermore, the molten molding resin material can be easily and reliably matched between the upper and lower mold parts. The conventional problem of protruding can be solved.
高精度、高品質の成形品を製造することができ、また、
成形品にパリや段差が生じないから、パリや段差の除去
作業およびパリや段差の除去面の仕上げ作業を省略でき
る。We can produce high-precision, high-quality molded products, and
Since no burrs or steps occur in the molded product, the work of removing burrs or steps and the finishing work of surfaces from which burrs or steps have been removed can be omitted.
また、成形用合わせ型は弾力性を有するシリコン樹脂製
であるから、安価に得られ、試作品またはロフト当りの
少量生産に最適である。Furthermore, since the molding mold is made of elastic silicone resin, it can be obtained at low cost and is ideal for prototypes or small-lot production per loft.
図面は本発明の実施例を示し、第１図は成形用合わせ型
の一例での平面図、第２図に同上■−■線に沿った断面
図、第３図は第２図の■−■線に沿った断面図、第４図
は第１図の■方向から見た端面図、第５図は第１図の■
方向から見た端面図、第６図は第１図の■方向から見た
端面図、第７図から第１０図は成形用合わせ型の製造工
程を示し、第７図は筐体の型締め状態を示す概略平面図
、第８図は同上■−■線に沿った断面図、第９図はシリ
コン樹脂体の断面図、第１０図はシリコン樹脂体の一部
分を切断して中の木型を取り出す状態を示す断面図であ
る。
１・・・成形用合わせ型
２・・・パターン空間
３・・・上型部
４・・・下型部
５・・・共通基部
６・・・空気抜き用孔
７・・・溶融樹脂注入孔
１０．１１・・・筺体
１２・・・木型（母型）
１３．１４・・・支持部
１５．１６・・・上下型締板
１７・・・ボルト
１８・・・ナツト
１９・・・注入孔
２０・・・溶融シリコン樹脂
２１・・・シリコン樹脂体
２２．２３・・・切断線The drawings show embodiments of the present invention; FIG. 1 is a plan view of an example of a molding mold, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 2, and FIG. ■A sectional view taken along the line, Figure 4 is an end view seen from the ■ direction in Figure 1, and Figure 5 is an end view taken from the ■ direction in Figure 1.
Figure 6 is an end view seen from direction ■ in Figure 1, Figures 7 to 10 show the manufacturing process of the mating mold for molding, and Figure 7 shows the clamping of the housing. A schematic plan view showing the state; Figure 8 is a cross-sectional view taken along line ■-■ as above; Figure 9 is a cross-sectional view of the silicone resin body; Figure 10 is a wooden mold inside by cutting a part of the silicone resin body. FIG. 1... Matching mold for molding 2... Pattern space 3... Upper mold part 4... Lower mold part 5... Common base 6... Air vent hole 7... Molten resin injection hole 10 .11... Housing 12... Wooden mold (matrix) 13.14... Support part 15.16... Upper and lower mold clamping plates 17... Bolts 18... Nuts 19... Injection holes 20... Molten silicone resin 21... Silicone resin body 22.23... Cutting line
Claims (1)
置して、該筺体を型締めした後、筐体内に弾力性を有す
る溶融シリコン樹脂を注入して固め、次いで筺体を外し
て取り出したシリコン樹脂体の一部分を切断して中の木
型を取り出し、パターン空間を挾んで分割された上下型
部を有し、かつ上下型部が離れないようにその共通基部
において一体に連設されている弾性シリコン樹脂製の成
形用合わせ型を得、該シリコン樹脂製の成形用合わせ型
に溶融成形樹脂を注入して成形品を得ることを特徴とす
る樹脂成形方法。 ２、パターン空間を挾んで分割された上型部と下型部が
離れないようにその共通基部において一体に連設されて
いる弾力性を有するシリコン樹脂製の成形用合わせ型。[Claims] 1. A wooden mold of a molded product is placed in a suspended manner in a splittable housing, and after the housing is clamped, elastic molten silicone resin is injected into the housing. After hardening, the casing was removed and a part of the silicone resin body was taken out and the wooden mold inside was taken out. Resin molding characterized by obtaining a molding mold made of elastic silicone resin that is integrally connected at a common base, and injecting molten molding resin into the molding mold made of silicone resin to obtain a molded product. Method. 2. A molding mold made of elastic silicone resin, in which the upper mold part and the lower mold part, which are divided across the pattern space, are integrally connected at their common base so that they do not separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27300290A JPH04147812A (en) | 1990-10-11 | 1990-10-11 | Method of molding resin and coupling mold for the molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27300290A JPH04147812A (en) | 1990-10-11 | 1990-10-11 | Method of molding resin and coupling mold for the molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04147812A true JPH04147812A (en) | 1992-05-21 |
Family
ID=17521783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27300290A Pending JPH04147812A (en) | 1990-10-11 | 1990-10-11 | Method of molding resin and coupling mold for the molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04147812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100356227B1 (en) * | 2000-10-27 | 2002-10-18 | 현대자동차주식회사 | Method for forming prototype of foamed layer and embossed skin |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5168673A (en) * | 1974-12-11 | 1976-06-14 | Matsushita Electric Ind Co Ltd | SEIKEIHINNO SEIZOHOHO |
-
1990
- 1990-10-11 JP JP27300290A patent/JPH04147812A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5168673A (en) * | 1974-12-11 | 1976-06-14 | Matsushita Electric Ind Co Ltd | SEIKEIHINNO SEIZOHOHO |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100356227B1 (en) * | 2000-10-27 | 2002-10-18 | 현대자동차주식회사 | Method for forming prototype of foamed layer and embossed skin |
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