JPS60184818A - Small transfer molding machine - Google Patents
Small transfer molding machineInfo
- Publication number
- JPS60184818A JPS60184818A JP4071884A JP4071884A JPS60184818A JP S60184818 A JPS60184818 A JP S60184818A JP 4071884 A JP4071884 A JP 4071884A JP 4071884 A JP4071884 A JP 4071884A JP S60184818 A JPS60184818 A JP S60184818A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- spring
- molding machine
- dies
- shape memory
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
- B29C45/021—Plunger drives; Pressure equalizing means for a plurality of transfer plungers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は小型トランスファー成形機に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a small transfer molding machine.
トランスファー成形機の一例を第１図に示す。An example of a transfer molding machine is shown in FIG.
金型１，２と、下熱板３と、ボット４を有する上熱板５
と、プランジャ６とで構成されている。ボッ１−４内に
クブレソＩ・を挿入して予熱した後に、プランジャ６を
下降させ、注型を行なう。プランジャ６の作動には浦空
圧またはモータによって蓄勢されたスプリングのエネル
ギが利用される。Upper hot plate 5 having molds 1 and 2, lower hot plate 3, and bot 4
and a plunger 6. After inserting the cube I. into the bottle 1-4 and preheating it, the plunger 6 is lowered to perform casting. The plunger 6 is actuated using the spring energy stored by the air pressure or the motor.
このような小型トランスファー成形機において、可殿型
で小型軽量化を図ることが用途、要所によっては必要な
場合がある。油空圧源は現場では得られないことがあり
、その場合は手動または電気に頼ることになる。手動の
場合は、安全性や作業性の面で問題がある。 電気の場
合は、モータによって直接に作動させるようにすると、
プランジャの下死点でモータ保護のため、クラッチ等の
保護手段が必要となる。しかも、下死点の位置がタブレ
ットの大きさのばらつきによって異なるため、モータの
保護が容品でない。このため、モータでスプリングに蓄
勢し、そのエネルギを利用してカム等で速度制御しなが
らプランジャを下降させるようにする。しかし、モータ
を熱的な問題で上部に配置できないために、モータから
プランジャへの力の伝達機構が複雑となったり、大形化
したりし、小型軽量化に限界がある。また、タブレット
の挿入のためにスプリングのたわみを大きくとる必要が
あるが、押付力が必要なのは下降点であるにもかかわら
ず、上昇点のスプリング力に相応のモータが必要になり
、注型速度の関連もあって小型軽量化に反することにな
る。In such a small transfer molding machine, it may be necessary to use a removable type to reduce the size and weight depending on the application and important points. Hydraulic and pneumatic sources may not be available on site, in which case manual or electrical power must be relied upon. In the case of manual operation, there are problems in terms of safety and workability. In the case of electricity, if it is operated directly by a motor,
A clutch or other protective means is required to protect the motor at the bottom dead center of the plunger. Moreover, since the position of the bottom dead center varies depending on the size of the tablet, protection of the motor is not satisfactory. For this reason, a motor is used to store energy in a spring, and this energy is used to lower the plunger while controlling the speed with a cam or the like. However, because the motor cannot be placed at the top due to thermal issues, the mechanism for transmitting force from the motor to the plunger becomes complicated and large, which limits the ability to reduce size and weight. In addition, it is necessary to take a large deflection of the spring in order to insert the tablet, but even though the pressing force is required at the descending point, a motor corresponding to the spring force at the ascending point is required, and the casting speed is Due to this, it goes against the idea of making it smaller and lighter.
したがって、この目的は、プランジャ駆動のための構造
が簡単で小型軽量化が図れる電気駆動式の小型トランス
ファー成形機を提供すことである。Therefore, the object is to provide an electrically driven compact transfer molding machine that has a simple structure for driving a plunger and is small and lightweight.
この発明の一実施例を第２図に示す。図において、７．
８は一対の金型であり、キャビティ９とランナ１０とを
有する。金型７，８の上下にヒータ１１を有する上盤板
１２および下盤板１３が配置され、下盤板１２にボット
２１が設けられている。１４ばボット２１に下端が挿入
されるプランジャであり、導電性のガイＦ部月１５によ
り昇降自在に支持されている。ガイド部材１５ば本体フ
レーム（図示せず）に固定されている。ガイド部材１５
の下方でプランジャ１４にリング状の導電性０１１１子
Ｉ６が固定され、ガイド部材１５と導電性６Ｈ：、７子
１６とに両端を接続して形状記憶合金製のコイルスプリ
ング１７が設けられている。スプリング１７はプランジ
ャ１４の外周に遊嵌している。An embodiment of this invention is shown in FIG. In the figure, 7.
A pair of molds 8 has a cavity 9 and a runner 10. An upper plate 12 and a lower plate 13 having heaters 11 are arranged above and below the molds 7 and 8, and a bot 21 is provided on the lower plate 12. 14 is a plunger whose lower end is inserted into the bot 21, and is supported by a conductive guy F part 15 so as to be able to rise and fall. The guide member 15 is fixed to a main body frame (not shown). Guide member 15
A ring-shaped conductive element I6 is fixed to the plunger 14 below the plunger 14, and a coil spring 17 made of a shape memory alloy is provided with both ends connected to the guide member 15 and the conductive element 16. . The spring 17 is loosely fitted around the outer periphery of the plunger 14.
スプリング１７は、ガイド部＋Ａｉ５と導電性端子１６
とを介して電源１８が接続される。１９はスイッチであ
る。プランジャ１４の導電性ζ１１．１子１６と先端部
４Ａ’ ｌ ４ ａとの間には絶縁物２０が設←ノられ
ている。The spring 17 connects the guide portion +Ai5 and the conductive terminal 16.
A power source 18 is connected via the. 19 is a switch. An insulator 20 is provided between the conductive ζ11.1 element 16 of the plunger 14 and the tip 4A'l4a.
上記十Ｍ成の動作につき説明する。まず、金型７゜８を
成形機にセットし、金型７，８を熱板１２゜Ｉ３により
予熱する。金型７，８の温度を温度センサで検出し、所
定の温度になるとタブレット（固形）をボット１４に入
れる。金型７，８の予熱と同時に、または一定時間後に
スイッチ１９を閉じ、スプリング１７にも電流を流す。The operation of the above 10M configuration will be explained. First, a mold 7°8 is set in a molding machine, and the molds 7 and 8 are preheated by a hot plate 12°I3. The temperature of the molds 7 and 8 is detected by a temperature sensor, and when a predetermined temperature is reached, a tablet (solid) is put into the bot 14. At the same time as the molds 7 and 8 are preheated, or after a certain period of time, the switch 19 is closed and current is also applied to the spring 17.
通電によりスプリング１７は発メ：さして温度上昇し、
伸長する。When energized, the spring 17 generates heat: its temperature rises,
Stretch.
そのため、プランジャ１４が下降してボット２１間に嵌
り、タブレットを溶融さ−Ｕながら、成形押圧する。一
定時間経過後にスイッチ１９が切れ、金型７，８のスプ
リングが解放され、金型７，８は水平に引出される。こ
の結果、スプリング１７は冷却されて）ｉｎみ、プラン
ジャ１４は元の位置に引き上げられ、成形が終了する。Therefore, the plunger 14 descends and fits between the bots 21, and presses the tablet while melting it. After a certain period of time has elapsed, the switch 19 is turned off, the springs of the molds 7 and 8 are released, and the molds 7 and 8 are pulled out horizontally. As a result, the spring 17 is cooled and indented, and the plunger 14 is pulled up to its original position, completing the molding.
成形物は金型７゜８を１Ｊ１′１いて取り出される。The molded product is removed from the mold 7°8 by 1J1'1.
このように、形状記憶合金のスプリング１７てプランジ
ャ１４の駆動が行なわれる。そのため、モータか不要と
なり、プランジャ１４への刀の伝達機構が不要となると
同時に、プランジャ１４の速度制御用カム等も不要とな
る。また、形状記憶合金製のスプリング１７によりたわ
みが大きくとれ、タブレットの挿入等の作業性が良くな
る。これらの理由により、大幅な小型軽量化が図れ、可
搬式とすることができる。In this manner, the plunger 14 is driven by the shape memory alloy spring 17. Therefore, there is no need for a motor, no need for a mechanism for transmitting the blade to the plunger 14, and at the same time, no need for a cam for controlling the speed of the plunger 14, etc. In addition, the spring 17 made of shape memory alloy allows for a large amount of deflection, improving workability such as inserting a tablet. For these reasons, the device can be significantly reduced in size and weight, and can be made portable.
以上のように、この発明の小型トランスファー成形殿は
、形状記憶合金製のスプリングでプランジャを作動させ
、かつスプリングは通電により加熱することにより、プ
ランジャの駆動のための構造が簡単で小型軽量化が図れ
、また油圧や空圧源が不要で４３１．ｉ相比も図り易い
という効果がある。As described above, the compact transfer molding chamber of the present invention operates the plunger using a shape memory alloy spring, and the spring is heated by energization, so that the structure for driving the plunger is simple and compact and lightweight. Also, no hydraulic or pneumatic source is required. This has the effect of making it easy to measure the i-phase ratio.
第１図は従来例の破断圧面図、第２図はこの発明の一実
施例の破断圧面図である。
７．８・・・金型、１１・・・ヒータ、１２・・・上熱
板、Ｉ３・・・下熱板、１５・・・ガイド部イアｊ、１
７・・・スプリング、２１・・・ポット
３
第１図
第２図FIG. 1 is a fracture pressure surface diagram of a conventional example, and FIG. 2 is a fracture pressure surface diagram of an embodiment of the present invention. 7.8... Mold, 11... Heater, 12... Upper hot plate, I3... Lower hot plate, 15... Guide part ear j, 1
7... Spring, 21... Pot 3 Figure 1 Figure 2
Claims (1)
のボットに先端が挿脱自在に設けられたプランジャと、
このプランジャに一端が連結され通電による温度上昇に
より伸長して前記プランジャの先θｊＬ１を前記ボット
に挿入させる形状記憶合金製のスプリングと、このスプ
リングに通電する手段とを備えた小型トランスファー成
形機。a mold, a bot that communicates with the cavity of the mold, and a plunger whose tip is removably inserted into the bot;
A small transfer molding machine comprising a spring made of a shape memory alloy whose one end is connected to the plunger and expands due to temperature rise due to energization to insert the tip θjL1 of the plunger into the bot, and means for energizing the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4071884A JPH0628873B2 (en) | 1984-03-02 | 1984-03-02 | Small transfer molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4071884A JPH0628873B2 (en) | 1984-03-02 | 1984-03-02 | Small transfer molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60184818A true JPS60184818A (en) | 1985-09-20 |
| JPH0628873B2 JPH0628873B2 (en) | 1994-04-20 |
Family
ID=12588373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4071884A Expired - Lifetime JPH0628873B2 (en) | 1984-03-02 | 1984-03-02 | Small transfer molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628873B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62201214A (en) * | 1986-03-01 | 1987-09-04 | Sumitomo Electric Ind Ltd | Handy transfer molding device |
| JPH04208389A (en) * | 1990-11-14 | 1992-07-30 | Eku R C Kk | Shutter |
| US5158780A (en) * | 1991-02-26 | 1992-10-27 | Boschman Technologies B.V. | Device for encapsulating electronic components |
| US5501588A (en) * | 1994-04-22 | 1996-03-26 | Han-Mi Mold & Tool Co., Ltd | Mold for a semiconductor package |
-
1984
- 1984-03-02 JP JP4071884A patent/JPH0628873B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62201214A (en) * | 1986-03-01 | 1987-09-04 | Sumitomo Electric Ind Ltd | Handy transfer molding device |
| JPH0363934B2 (en) * | 1986-03-01 | 1991-10-03 | Sumitomo Denki Kogyo Kk | |
| JPH04208389A (en) * | 1990-11-14 | 1992-07-30 | Eku R C Kk | Shutter |
| US5158780A (en) * | 1991-02-26 | 1992-10-27 | Boschman Technologies B.V. | Device for encapsulating electronic components |
| US5501588A (en) * | 1994-04-22 | 1996-03-26 | Han-Mi Mold & Tool Co., Ltd | Mold for a semiconductor package |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0628873B2 (en) | 1994-04-20 |
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