JPH0123790Y2 - - Google Patents
Info
- Publication number
- JPH0123790Y2 JPH0123790Y2 JP19045584U JP19045584U JPH0123790Y2 JP H0123790 Y2 JPH0123790 Y2 JP H0123790Y2 JP 19045584 U JP19045584 U JP 19045584U JP 19045584 U JP19045584 U JP 19045584U JP H0123790 Y2 JPH0123790 Y2 JP H0123790Y2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- mold
- groove
- flat
- thermosetting resin
- 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
Links
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims description 6
- 239000000470 constituent Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Description
【考案の詳細な説明】
産業上の利用分野
本考案は熱硬化性樹脂用金型に関するものであ
る。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a mold for thermosetting resin.
従来の技術と考案が解決しようとする問題点
熱硬化性樹脂の成形においては金型をある程度
加熱する必要がある。金型を加熱するに当り、従
来においては、金型内にヒーターを埋設するとい
う手段が一般に採られていた。しかしながら、金
型温度を均一化するためには多数本のヒーターを
埋設することが必要であり、しかもこれらのヒー
ターは金型内のピン等の位置を避けて配設しなけ
ればならない。従つて、金型は必然的に大型化
し、金型設計の自由度も低下するという問題があ
つた。Problems to be solved by conventional techniques and ideas In molding thermosetting resin, it is necessary to heat the mold to some extent. Conventionally, in order to heat a mold, a method of embedding a heater within the mold has generally been adopted. However, in order to make the mold temperature uniform, it is necessary to embed a large number of heaters, and these heaters must be placed avoiding the positions of pins and the like in the mold. Therefore, there was a problem that the mold inevitably became larger and the degree of freedom in mold design decreased.
このような問題を解決するために、本考案は金
型の外周付近に該金型を取り巻くヒーター溝を形
成し、このヒーター溝内に偏平ヒーターを配設す
るようにしたものである。 In order to solve this problem, the present invention is such that a heater groove surrounding the mold is formed near the outer periphery of the mold, and a flat heater is disposed within the heater groove.
問題点を解決するための手段
以下、前記問題点を解決するための手段を図示
の実施例に基いて具体的に説明する。Means for Solving the Problems Hereinafter, means for solving the above problems will be specifically explained based on illustrated embodiments.
本考案においては、射出成形用金型等の熱硬化
性樹脂用金型の外周付近に該金型を取り巻く単数
又は複数のヒーター溝１を形成し、該ヒーター溝
１内に偏平ヒーター２を配設する。本考案を射出
成形用の３枚プレート金型に適用した事例を示す
第１図においては、複数の金型構成部材の側面に
ヒーター溝１を設けている。因に、第１図におい
て３は固定側取付板、４はピン板、５は固定側型
板、６はストリツパー板、７は可動側取付板、８
は成形品である。 In the present invention, one or more heater grooves 1 are formed near the outer periphery of a thermosetting resin mold such as an injection mold, and a flat heater 2 is disposed within the heater groove 1. Set up In FIG. 1, which shows an example in which the present invention is applied to a three-plate mold for injection molding, heater grooves 1 are provided on the side surfaces of a plurality of mold constituent members. Incidentally, in Fig. 1, 3 is a fixed side mounting plate, 4 is a pin plate, 5 is a fixed side mold plate, 6 is a stripper plate, 7 is a movable side mounting plate, and 8
is a molded product.
ヒーター溝１内に配設するヒーターは表面積が
大きく、金型を効率よく加熱し得る偏平ヒーター
とし、例えばカートリツジヒーター又はシーズヒ
ーターを用いるのが望ましい。 The heater disposed in the heater groove 1 is preferably a flat heater that has a large surface area and can heat the mold efficiently, such as a cartridge heater or a sheathed heater.
また、各ヒーター溝１内には、第２図に示すよ
うに、１対の略Ｌ字状の偏平ヒーター２，２を相
対向させて配設するのが望ましい。尚、第３図に
おける符号９は偏平ヒーター２をヒーター溝１内
に固定するねじである。 In each heater groove 1, as shown in FIG. 2, it is desirable to arrange a pair of substantially L-shaped flat heaters 2, 2 facing each other. Incidentally, reference numeral 9 in FIG. 3 is a screw for fixing the flat heater 2 within the heater groove 1.
作用、効果
本考案においては、金型の外周付近に該金型を
取り巻くようにヒーターを配設したため金型は外
方から均一に加熱される。また、ヒーターを偏平
状のものとし、ヒーター溝内に配設したため、金
型は効率よく加熱される。更に、ヒーターを金型
内に埋設せずに金型の外周付近に配設したため、
金型をコンパクト化することができ、金型設計の
自由度も向上する。なお、ヒーターをヒーター溝
内に入れるようにしたため、ヒーターは特別な治
具等を用いることなく極めて容易に取り付けるこ
とができる。Functions and Effects In the present invention, since the heater is disposed near the outer periphery of the mold so as to surround the mold, the mold is uniformly heated from the outside. Furthermore, since the heater is flat and disposed within the heater groove, the mold can be heated efficiently. Furthermore, since the heater was placed near the outer periphery of the mold instead of being buried inside the mold,
The mold can be made more compact and the degree of freedom in mold design is improved. In addition, since the heater is inserted into the heater groove, the heater can be attached extremely easily without using any special jig or the like.
一方、ヒーター溝内に１対の略Ｌ字状の偏平ヒ
ーターを相対向させて配設したときには、ヒータ
ー溝内に１本のヒーターを配設した場合と異な
り、ヒーターの長手方向の熱膨張がヒーター溝内
で吸収されるため、ヒーターの浮上り、脱落等が
防止される。また、ヒーター溝と略Ｌ字状の偏平
ヒーターとの間には多少の寸法上の差異があつて
も差支えないため、ヒーター溝とヒーターの寸法
上の精度を低下させてもよく、また、同一寸法の
ヒーターを若干寸法の異なる金型に流用すること
も可能となる。 On the other hand, when a pair of approximately L-shaped flat heaters are placed facing each other in the heater groove, thermal expansion in the longitudinal direction of the heaters is different from when a single heater is placed in the heater groove. Since it is absorbed within the heater groove, the heater is prevented from floating or falling off. Furthermore, since there may be some dimensional difference between the heater groove and the approximately L-shaped flat heater, the dimensional accuracy of the heater groove and the heater may be reduced, and the same It is also possible to use a heater with different dimensions for a mold with slightly different dimensions.
第１図は本考案による熱硬化性樹脂用金型の一
例を示す断面図、第２図は同上金型の構成部材に
おけるヒーター溝と偏平ヒーターとを示す一部省
略側面図、第３図はヒーター溝と偏平ヒーターと
を示す拡大断面図である。
１：ヒーター溝、２：偏平ヒーター、３：固定
側取付板、４：ピン板、５：固定側型板、６：ス
トリツパー板、７：可動側取付板、８：成形品、
９：ねじ。
FIG. 1 is a sectional view showing an example of a thermosetting resin mold according to the present invention, FIG. 2 is a partially omitted side view showing heater grooves and flat heaters in the constituent members of the same mold, and FIG. FIG. 3 is an enlarged cross-sectional view showing heater grooves and a flat heater. 1: Heater groove, 2: Flat heater, 3: Fixed side mounting plate, 4: Pin plate, 5: Fixed side template, 6: Stripper plate, 7: Movable side mounting plate, 8: Molded product,
9: Screw.
Claims (1)
数のヒーター溝を形成し、該ヒーター溝内に偏
平ヒーターを配設したことを特徴とする熱硬化
性樹脂用金型。 ２ 前記ヒーター溝内には１対の略Ｌ字状の偏平
ヒーターを相対向させて配設したことを特徴と
する実用新案登録請求の範囲第１項記載の熱硬
化性樹脂用金型。[Scope of Claim for Utility Model Registration] 1. For thermosetting resin, characterized in that one or more heater grooves surrounding the mold are formed near the outer periphery of the mold, and a flat heater is disposed within the heater groove. Mold. 2. The thermosetting resin mold according to claim 1, wherein a pair of substantially L-shaped flat heaters are disposed facing each other in the heater groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19045584U JPH0123790Y2 (en) | 1984-12-14 | 1984-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19045584U JPH0123790Y2 (en) | 1984-12-14 | 1984-12-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61105120U JPS61105120U (en) | 1986-07-04 |
| JPH0123790Y2 true JPH0123790Y2 (en) | 1989-07-20 |
Family
ID=30747910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19045584U Expired JPH0123790Y2 (en) | 1984-12-14 | 1984-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0123790Y2 (en) |
-
1984
- 1984-12-14 JP JP19045584U patent/JPH0123790Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61105120U (en) | 1986-07-04 |
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