JPH0586895B2 - - Google Patents
Info
- Publication number
- JPH0586895B2 JPH0586895B2 JP32667388A JP32667388A JPH0586895B2 JP H0586895 B2 JPH0586895 B2 JP H0586895B2 JP 32667388 A JP32667388 A JP 32667388A JP 32667388 A JP32667388 A JP 32667388A JP H0586895 B2 JPH0586895 B2 JP H0586895B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- upper mold
- attached
- synthetic resin
- matching
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 19
- 239000000057 synthetic resin Substances 0.000 claims description 19
- 239000011550 stock solution Substances 0.000 claims description 14
- 238000005187 foaming Methods 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 9
- 238000010097 foam moulding Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 15
- 230000013011 mating Effects 0.000 description 11
- 239000006260 foam Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は発泡成形型に関し、更に詳細に説明す
ると、下型と該下型に型合わせされる上型とから
なる発泡成形型に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a foam mold, and more specifically, to a foam mold comprising a lower mold and an upper mold fitted to the lower mold.
従来より、第３図に示す如く、下型２と上型３
とを備える発泡成形型１が存在し、発泡合成樹脂
の原液を下型２に注入し、発泡キユアさせてパツ
ド材５を成形している。
Conventionally, as shown in Fig. 3, a lower mold 2 and an upper mold 3 are used.
There is a foaming mold 1 comprising a foaming mold 1, in which a stock solution of foamed synthetic resin is injected into a lower mold 2, and the foam is cured to form a pad material 5.
そして、下型２と上型３とは型合わせ部６の型
合わせ面７で型合わせされるようになされてい
る。 The lower mold 2 and the upper mold 3 are mold-matched at a mold-matching surface 7 of a mold-matching portion 6.
〔発明が解決しようとする問題点〕
下型２と上型３とを型合わせ部６により型合わ
せした場合に、下型２と上型３とのパーテイング
ライン８の外側の型合わせ面に発泡合成樹脂の原
液が浸入しないように発泡成形型１の製造時に高
度の加工精度を要求され、また型合わせ面７にパ
ツキン等を設ける場合には型合わせ面７に隙間が
発生し、この隙間に発泡合成樹脂の原液が入り込
む虞れを有し、パツド材５の成形後にパーテイン
グライン８の外側にバリが発生する虞れを有し、
このバリがパーテイングライン８に沿つてパツド
材５の外周に外方に突出した面状に形成されるた
めこのバリ取り作業が煩雑となる欠点を有してい
た。[Problems to be Solved by the Invention] When the lower mold 2 and the upper mold 3 are mold-matched by the mold matching part 6, the mold-matching surface outside the parting line 8 of the lower mold 2 and the upper mold 3 is A high degree of processing precision is required during the manufacture of the foam mold 1 to prevent the undiluted solution of the foamed synthetic resin from penetrating, and when a gasket or the like is provided on the mold mating surface 7, a gap is generated on the mold mating surface 7, and this gap There is a risk that the undiluted solution of the foamed synthetic resin will enter the mold, and there is a risk that burrs will form on the outside of the parting line 8 after the pad material 5 is formed.
This burr is formed on the outer periphery of the pad material 5 along the parting line 8 in the form of a surface projecting outward, which has the disadvantage that the burr removal work is complicated.
本発明の目的は、パーテイングラインに沿つた
バリの発生を防止でき、然も型合わせ面及びパー
テイングラインの加工精度が要求されず、不良品
の発生の少ない経済性に優れた発泡成形型を提供
するものである。 The object of the present invention is to provide a foam molding mold that can prevent the occurrence of burrs along the parting line, does not require high processing precision on the mold mating surfaces and the parting line, and is highly economical with fewer defective products. It provides:
本発明は上述せる問題点に鑑みてなされたもの
で、下型と該下型に型合わせされる上型とからな
る発泡成形型において、前記上型の成形面の一部
と連通する状態で管部材の一端が上型に取付けら
れ、該管部材の他端が下型と上型との型合わせ面
の一部と連通する状態で上型の型合わせ部の外側
に取付けられ、前記管部材の他端が取付けられた
型合わせ部の外側にシール部が形成され、前記下
型に発泡合成樹脂の原液を注入し、上型を下型に
型合わせした場合に、前記発泡合成樹脂の原液の
発泡圧が上型に取付けられた管部材を介して下型
と上型との型合わせ部のシール部の内側に与えら
れるようになされていることを特徴とする。
The present invention has been made in view of the above-mentioned problems, and includes a foam mold consisting of a lower mold and an upper mold that is fitted to the lower mold, in a state where the foaming mold is in communication with a part of the molding surface of the upper mold. One end of the tube member is attached to the upper mold, the other end of the tube member is attached to the outside of the mold matching part of the upper mold in a state where it communicates with a part of the mold matching surface of the lower mold and the upper mold, A sealing part is formed on the outside of the mold matching part to which the other end of the member is attached, and when the stock solution of the foamed synthetic resin is injected into the lower mold and the upper mold is molded with the lower mold, the foamed synthetic resin is sealed. It is characterized in that the foaming pressure of the stock solution is applied to the inside of the seal part of the mold matching part of the lower mold and the upper mold through a pipe member attached to the upper mold.
本発明に依れば、一端が上型の成形面と連通
し、他端が型合わせ面の一部と連通する管部材を
設けたので、下型に発泡合成樹脂の原液を注入し
た場合に発泡合成樹脂の原液の発泡圧が管部材を
介して連通状態にある型合わせ面に与えられ、発
泡合成樹脂の原液が型合わせ面に浸入する虞れが
なく、バリの発生を防止することができるもので
ある。
According to the present invention, since the pipe member is provided, one end of which communicates with the molding surface of the upper mold, and the other end of which communicates with a part of the mold mating surface, when the stock solution of foamed synthetic resin is injected into the lower mold, The foaming pressure of the stock solution of the foamed synthetic resin is applied to the mold mating surfaces that are in communication via the pipe member, so there is no risk that the stock solution of the foamed synthetic resin will enter the mold mating surfaces, and the generation of burrs can be prevented. It is possible.
以下本発明に係る発泡成形型を図面を参照して
詳述する。
The foam molding mold according to the present invention will be explained in detail below with reference to the drawings.
第１図及び第２図には本発明に係る発泡成形型
の一実施例の概略が夫々示されており、この発泡
成形型１１は、下型１２と、該下型１２に型合わ
せされる上型１３とを備えている。 FIG. 1 and FIG. 2 each schematically show an embodiment of a foam molding mold according to the present invention, and this foam mold 11 includes a lower mold 12 and a mold fitted to the lower mold 12. An upper mold 13 is provided.
下型１２と上型１３とは外周縁部に型合わせ部
１６，１７が形成され、この型合わせ部１６，１
７の型合わせ面１８，１９が夫々型合わせされ
る。そして下型１２と上型１３の型合わせ面１
８，１９の外側寄りに合成樹脂材，ゴム材等から
なるシール材２２が取付けられてシール部２１が
形成されている。 The lower mold 12 and the upper mold 13 have mold matching parts 16 and 17 formed on their outer peripheral edges, and these mold matching parts 16 and 1
The mold matching surfaces 18 and 19 of No. 7 are mold-matched, respectively. And mold matching surface 1 of lower mold 12 and upper mold 13
A seal member 22 made of a synthetic resin material, rubber material, etc. is attached to the outer side of 8, 19 to form a seal portion 21.
前記上型１３の成形面１３ａの一部と連通する
状態で管部材２５の一端２６が上型１３に取付け
られ、また管部材２５の他端２７が上型１３の型
合わせ面１９の一部と連通する状態で上型１３の
型合わせ部１７の外側に取付けられている。尚、
上型１３には前記管部材２５の取付部３１，３２
が形成され、管部材２５の両端２６，２７は夫々
取付部３１，３２に気密を保持して取付けられて
いる。また管部材２５は硬質合成樹脂パイプや金
属パイプ等の気密性を有するものから形成されて
いる。 One end 26 of the tube member 25 is attached to the upper mold 13 in a state where it communicates with a part of the molding surface 13a of the upper mold 13, and the other end 27 of the tube member 25 is connected to a part of the molding surface 19 of the upper mold 13. It is attached to the outside of the mold matching part 17 of the upper mold 13 in a state where it communicates with the mold. still,
The upper die 13 has attachment parts 31 and 32 for the tube member 25.
are formed, and both ends 26 and 27 of the tube member 25 are attached to attachment portions 31 and 32, respectively, in an airtight manner. Further, the pipe member 25 is made of an airtight material such as a hard synthetic resin pipe or a metal pipe.
また前記管部材２５の他端２７は前記シール部
２１の内側に取付けられている。 Further, the other end 27 of the tube member 25 is attached to the inside of the seal portion 21.
従つて、第１図に示す如く、下型１２に発泡合
成樹脂の原液１５ａを注入し、上型１３を型合わ
せ部１６，１７にて型合わせすると、発泡合成樹
脂の原液１５ａの発泡キユアによつて発生する発
泡圧が上型１３の成形面１３ａと連通する管部材
２５の一端２６より管部材２５の内部に与えら
れ、次いで管部材２５の他端２７が連通する型合
わせ面１８，１９に与えられ、下型１２内部の圧
力と、型合わせ面１８，１９の圧力が均一とな
り、発泡合成樹脂の原液１５ａがパーテイングラ
イン２０より外側に、即ち型合わせ面１８，１９
側に浸入する虞れがないものである。 Therefore, as shown in FIG. 1, when the foamed synthetic resin stock solution 15a is injected into the lower mold 12 and the upper mold 13 is matched at the mold matching portions 16 and 17, the foamed synthetic resin stock solution 15a is cured. The foaming pressure thus generated is applied to the inside of the tube member 25 from one end 26 of the tube member 25 that communicates with the molding surface 13a of the upper mold 13, and then to the mold matching surfaces 18, 19 that communicate with the other end 27 of the tube member 25. , the pressure inside the lower mold 12 and the pressure on the mold mating surfaces 18 and 19 become uniform, and the stock solution 15a of the foamed synthetic resin is applied to the outside of the parting line 20, that is, the mold mating surfaces 18 and 19.
There is no risk of it getting inside.
第２図に示す如く、発泡合成樹脂の原液１５ａ
の発泡キユアによりパツド材１５が成形され、こ
のパツド材１５の外周のパーテイングライン２０
に沿つた位置にはバリの発生のないパツド材１５
が得られるものである。尚上型１３の成形面１３
ａと連通する側の取付部３１にはパツド材１５ｂ
が上方に突出して形成されるが、このパツド材１
５ｂの部分は１箇所だけであるので、この上方に
突出するパツド材１５ｂをカツトして所望とする
形状のパツド材１５を得ることができる。 As shown in FIG. 2, a foamed synthetic resin stock solution 15a
A pad material 15 is formed by foaming cure, and a parting line 20 is formed on the outer periphery of this pad material 15.
Pad material 15 that does not generate burrs at the position along the
is obtained. Furthermore, the molding surface 13 of the upper mold 13
A pad material 15b is attached to the mounting portion 31 on the side communicating with a.
is formed to protrude upward, but this pad material 1
Since there is only one portion 5b, the pad material 15 having a desired shape can be obtained by cutting this upwardly protruding pad material 15b.
尚管部材２５の形状及び一端２６及び他端２７
の取付位置等適宜変更することができるものであ
る。 Note that the shape of the pipe member 25 and the one end 26 and the other end 27
The mounting position etc. can be changed as appropriate.
以上が本発明に係る発泡成形型の一実施例の構
成であるが、斯る構成に依れば、一端が上型の成
形面と連通し、他端が型合わせ面の一部と連通す
る管部材を設けたので、発泡合成樹脂の原液の発
泡圧が管部材を介して連通状態にある型合わせ面
に与えられ、パーテイングラインの内側と外側の
圧力が均一となり圧力差がないので型合わせ面に
発泡合成樹脂の原液が浸入するのを防止できパー
テイングラインに沿つたバリの発生を防止でき、
然も型合わせ面及びパーテイングラインの加工精
度が要求されず、発泡成形型の製造が容易に行
え、不良品の発生の少ない経済性に優れた発泡成
形型を得ることができる。
The above is the configuration of one embodiment of the foam molding mold according to the present invention. According to this configuration, one end communicates with the molding surface of the upper mold, and the other end communicates with a part of the mold matching surface. Since the pipe member is provided, the foaming pressure of the stock solution of foamed synthetic resin is applied to the mold mating surfaces that are in communication via the pipe member, and the pressure on the inside and outside of the parting line is uniform and there is no pressure difference, so the mold It prevents the foamed synthetic resin undiluted solution from entering the mating surfaces and prevents burrs from forming along the parting line.
Moreover, processing precision of the mold mating surfaces and parting lines is not required, and the foam molding mold can be easily manufactured, and an economically superior foam molding mold with fewer defective products can be obtained.
第１図及び第２図は本発明に係る発泡成形型の
一実施例の概略を夫々示すもので、第１図は発泡
合成樹脂の原液を下型に注入した状態の一部断面
図、第２図はパツド材を成形した状態の一部断面
図、第３図は従来の発泡成形型の一部断面図であ
る。
図中、１１……発泡成形型、１２……下型、１
３……上型、１３ａ……成形面、１５……パツド
材、１５ａ……発泡合成樹脂の原液、１６，１７
……型合わせ部、１８，１９……型合わせ面、２
０……パーテイングライン、２１……シール部、
２５……管部材、２６，２７……端部、３１，３
２……取付部。
FIGS. 1 and 2 schematically show an embodiment of a foam mold according to the present invention, and FIG. FIG. 2 is a partial sectional view of a molded pad material, and FIG. 3 is a partial sectional view of a conventional foam mold. In the figure, 11...foaming mold, 12...lower mold, 1
3... Upper mold, 13a... Molding surface, 15... Pad material, 15a... Stock solution of foamed synthetic resin, 16, 17
...Mold matching part, 18, 19...Mold matching surface, 2
0... Parting line, 21... Seal part,
25... Pipe member, 26, 27... End, 31, 3
2...Mounting part.
Claims (1)
る発泡成形型において、前記上型の成形面の一部
と連通する状態で管部材の一端が上型に取付けら
れ、該管部材の他端が下型と上型との型合わせ面
の一部と連通する状態で上型の型合わせ部の外側
に取付けられ、前記管部材の他端が取付けられた
型合わせ部の外側にシール部が形成され、前記下
型に発泡合成樹脂の原液を注入し、上型を下型に
型合わせした場合に、前記発泡合成樹脂の原液の
発泡圧が上型に取付けられた管部材を介して下型
と上型との型合わせ部のシート部の内側に与えら
れるようになされていることを特徴とする発泡成
形型。1. In a foaming mold consisting of a lower mold and an upper mold that is matched to the lower mold, one end of a tube member is attached to the upper mold in a state where it communicates with a part of the molding surface of the upper mold, and the tube member The tube member is attached to the outside of the mold matching part of the upper mold in a state where the other end communicates with a part of the mold matching surface of the lower mold and the upper mold, and the other end of the tube member is attached to the outside of the mold matching part to which the pipe member is attached. A sealing portion is formed, and when the foamed synthetic resin stock solution is injected into the lower mold and the upper mold is molded to the lower mold, the foaming pressure of the foamed synthetic resin stock solution is applied to the pipe member attached to the upper mold. 1. A foam molding mold, characterized in that it is applied to the inside of a seat part of a mold matching part of a lower mold and an upper mold through a mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32667388A JPH02171218A (en) | 1988-12-24 | 1988-12-24 | Foam molding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32667388A JPH02171218A (en) | 1988-12-24 | 1988-12-24 | Foam molding tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02171218A JPH02171218A (en) | 1990-07-02 |
| JPH0586895B2 true JPH0586895B2 (en) | 1993-12-14 |
Family
ID=18190386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32667388A Granted JPH02171218A (en) | 1988-12-24 | 1988-12-24 | Foam molding tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02171218A (en) |
-
1988
- 1988-12-24 JP JP32667388A patent/JPH02171218A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02171218A (en) | 1990-07-02 |
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