JPS60114500A - Method of molding globe for lighting apparatus - Google Patents
Method of molding globe for lighting apparatusInfo
- Publication number
- JPS60114500A JPS60114500A JP22242583A JP22242583A JPS60114500A JP S60114500 A JPS60114500 A JP S60114500A JP 22242583 A JP22242583 A JP 22242583A JP 22242583 A JP22242583 A JP 22242583A JP S60114500 A JPS60114500 A JP S60114500A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- molding
- globe
- mold
- synthetic 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.)
- Pending
Links
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は合成樹脂製のシートから照明器具用グローブを
成形する方法および装置に係る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method and apparatus for molding a globe for a lighting fixture from a sheet of synthetic resin.
従来例の構成とその問題点
２ベー〜！
照明器具用グローブでは合成樹脂製のグローブを本体に
固定するための孔あるいはパンチングメタル等の飾りを
取付するための孔等が必要な場合があり、そのような場
合では、成形機により合成樹脂製のシートを加熱してか
ら成形した後に熱溶断機に移送して、所望の孔を形成す
る方法が一般的に行なわれている。しかし、移送により
冷却されてしまってから、孔を形成すると耐薬品試験に
よって孔の周囲にクラックを生じる問題がある。Conventional configuration and its problems 2nd generation! Gloves for lighting equipment may require holes for fixing the synthetic resin globe to the main body or holes for attaching decorations such as punched metal. A commonly used method is to heat a sheet, shape it, and then transfer it to a thermal cutting machine to form desired holes. However, if holes are formed after the material has been cooled by transport, there is a problem in that cracks may occur around the holes during a chemical resistance test.
この試験は通常、イソプロピルアルコール（Ｄ噴Ｍ試験
が行なわれ、照明器具のように室内に取付られたまま、
殺虫剤が噴霧されることがある場合には極めて重要な試
験である。This test is usually carried out using isopropyl alcohol (D-spray M test), and the
This is an extremely important test if pesticides may be sprayed.
発明の目的
したがって、本発明の目的はクラック発生のおそれのな
い照明器具用グローブの成形方法を提供するとともに、
そのような成形方法の実施に適した成形装置を提供する
ことにある。OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to provide a method for molding a globe for lighting equipment without the risk of cracking, and
It is an object of the present invention to provide a molding device suitable for carrying out such a molding method.
発明の構成
上述した目的を達成するために、本発明は、合３ ペー
ジ
成樹脂製のシートを加熱する第１工程と、前記シートを
成形型により所望の形状に成形する第２工程と、約６０
〜約１００″Ｃの状態で前記シートに所望の孔を熱溶断
により形成する第３工程とを備えたことを特徴とする照
明器具用グローブの成形方法を構成し、この成形方法を
実施するために、合成樹脂製のシートを加熱するヒータ
ーと、前記シートを所望の形状に成形する成形型と、こ
の成形型に対向して前記シートに所望の孔を形成する熱
溶断刃とを一体的に装備したことを特徴とする照明器具
用グローブの成形装置を構成するものである。Structure of the Invention In order to achieve the above-mentioned object, the present invention comprises a first step of heating a sheet made of plastic resin, a second step of molding the sheet into a desired shape with a mold, and a second step of heating a sheet made of plastic resin. 60
and a third step of forming desired holes in the sheet by thermal cutting at a temperature of ~100''C, and for implementing this molding method. A heater that heats a synthetic resin sheet, a mold that molds the sheet into a desired shape, and a thermal cutting blade that faces the mold and forms a desired hole in the sheet are integrated. This constitutes a molding device for a globe for lighting equipment, which is characterized by being equipped with the following.
実施例の説明 次に本発明の実施例を図面を参照して説明する。Description of examples Next, embodiments of the present invention will be described with reference to the drawings.
第１図は成形装置であり、１は成形型、２，２′はヒー
ター、３は熱溶断刃、４は送風機、５は制御箱である。FIG. 1 shows a molding device, in which 1 is a mold, 2 and 2' are heaters, 3 is a thermal cutting blade, 4 is a blower, and 5 is a control box.
成形型１は吸込孔６を多数有したドーム状の真空成形用
のもので、合板７上に支持され、台板７の下面中央はエ
アーシリンダー８により上下可動のロッド９に支持され
、台板アの他の部分を支持するロッド１０は取付座１１
に対して上下に摺動可能に支持される。熱溶断刃３は円
周刃状を成しており、下面にバネ１２を有し、外周にヒ
ーター１３を取付けている。熱溶断刃３は台板１４に支
持され、台板１４の上面中央はエアーシリンダー１５に
より上下可動のロッド１６に支持され、台板１４の他の
部分を支持するロッド１７Ｖｉ取付座１８に対して上下
に摺動可能に支持される。ヒーター２，２′は各々紙面
に対して直角にスライド可能である。１９は後述する合
成樹脂製のシートを載置する載置板であり、その上面に
枠体２０を置いて枠体２０を押え金具２１で押えること
により合成樹脂製のシートを押えるものである。The mold 1 is a dome-shaped one for vacuum forming with a large number of suction holes 6, and is supported on a plywood board 7. The center of the lower surface of the base plate 7 is supported by a rod 9 that is movable up and down by an air cylinder 8. The rod 10 that supports the other parts of the
It is supported so that it can slide up and down. The thermal cutting blade 3 has a circumferential blade shape, has a spring 12 on its lower surface, and has a heater 13 attached to its outer periphery. The thermal cutting blade 3 is supported by a base plate 14, and the center of the upper surface of the base plate 14 is supported by a rod 16 that is movable up and down by an air cylinder 15, and the rod 17Vi that supports the other part of the base plate 14 is supported by a mounting seat 18. It is supported so that it can slide up and down. The heaters 2, 2' are each slidable at right angles to the plane of the paper. Reference numeral 19 denotes a mounting plate on which a synthetic resin sheet, which will be described later, is placed.A frame 20 is placed on the top surface of the mounting plate 19, and the frame 20 is pressed with a presser fitting 21 to hold down the synthetic resin sheet.
第２図に従って、工程を述べると、人において中央に窓
孔１９′のある載置板１９と、中央に窓孔２０′のある
枠体２０の周縁で合成樹脂製、たとえばアクリル樹脂あ
るいはスチロール樹脂のシート２２をはさみ、押え金具
２１で押えておき、上下にヒーター２，２′を位置させ
て、シート２２５ ページ
を所定温度、たとえば１４０〜１６０°Ｃ程度に加熱す
る。次に、Ｂにおいて、ヒーター２，２′ を後退させ
、成形型１をエアーシリンダー８により」二昇させると
、軟質化したシート２２が成形型１の形状に従ってドー
ム状に成形される。次にＣにおいて、図示しない真空引
き装置により真空引きすると、吸込孔６−空室１′一台
板７の孔７′一台板７′の裏面の空室ア”−ホース２３
と空気が引かれ、シート２２は成形型１にぴったりと吸
いつくとともに、成形型１の上面中央の凹部１“にシー
ト２２の中央が吸い込まれて図示のように吸着される。Describing the process according to FIG. 2, the mounting plate 19 with a window hole 19' in the center and the periphery of the frame 20 with a window hole 20' in the center are made of synthetic resin, such as acrylic resin or styrene resin. The sheet 22 is sandwiched and held down with the presser fittings 21, and the heaters 2 and 2' are placed above and below to heat the sheet 225 pages to a predetermined temperature, for example, about 140 to 160°C. Next, at B, the heaters 2 and 2' are moved back and the mold 1 is raised by the air cylinder 8, so that the softened sheet 22 is formed into a dome shape according to the shape of the mold 1. Next, at C, a vacuum is drawn by a vacuum device (not shown), and the suction hole 6 - the empty space 1', the hole 7' in the base plate 7, the empty space on the back side of the base plate 7' - the hose 23.
The air is drawn out, and the sheet 22 is tightly stuck to the mold 1, and the center of the sheet 22 is sucked into the recess 1'' in the center of the upper surface of the mold 1, as shown in the figure.
次にＤにおいて、送風機４によりシート２２を冷却して
いき、その温度が６ｏ″Ｃ〜１Ｑ○°Ｃ程度に成った時
に、ヒーター１３により所定温度、たとえば１４０°Ｃ
程度に加熱した熱溶断刃３をエアーシリンダー１５によ
り押し下げてシート２２の凹んだ部分を熱溶断して所望
の孔を形成する。Next, in D, the sheet 22 is cooled by the blower 4, and when the temperature reaches about 6o''C to 1QoC, the heater 13 is heated to a predetermined temperature, for example, 140°C.
The heated cutting blade 3 is pushed down by the air cylinder 15 to thermally cut the recessed portion of the sheet 22 to form a desired hole.
この時、バネ１２はシート２２の凹んだ部分を緩衝性良
く押える。次にＥにおいて熱溶断刃３を」二昇させ、成
形型１を下降させ、押え金具２１をは６ ページ
ずしてから枠体２０を上方へ取り除く。なお、シート２
２の孔２２′はシート２２の冷却後に中央を軽く打抜く
ことにより形成できる。以」二のようにして孔２２′の
ある照明器具用グローブが成形される。このように形成
されたグローブはイソプロピルアルコールの噴霧試験に
おいてクラックを生じない結果が得られた。At this time, the spring 12 presses the recessed portion of the sheet 22 with good cushioning properties. Next, at E, the heat cutting blade 3 is raised by 2'', the mold 1 is lowered, the presser metal fitting 21 is removed by 6 pages, and the frame body 20 is removed upward. In addition, sheet 2
The second hole 22' can be formed by lightly punching out the center of the sheet 22 after it has cooled. A lighting fixture globe having holes 22' is formed in the following manner. The glove thus formed did not cause any cracks in an isopropyl alcohol spray test.
発明の効果
以上詳述した本発明によれば、合成樹脂製のシートを成
形して冷却してしまわないうちに約６０〜約１００’Ｃ
の状態で孔を形成することに特徴があり、耐薬品試験に
おいてクラックを全く生じない良好な結果を得ており、
照明器具用グローブに適するものとなる。また、成形装
置自体に一体に熱溶断刃を組み込んで効率的な生産を行
うことができるものとなる。Effects of the Invention According to the present invention described in detail above, the synthetic resin sheet is heated to about 60 to about 100'C before being cooled.
It is characterized by forming pores in a state of
This makes it suitable for gloves for lighting equipment. In addition, efficient production can be achieved by integrally incorporating a thermal cutting blade into the molding device itself.
第１図は本発明に係る成形装置の正面図、第２図はその
成形工程を示す。
１・・・・・・成形型、２．２′・・・・・ヒーター、
３・・・・・γページ
熱溶断刃、２２・・・・・シート。
代理人の氏名 弁理士 中 尾 敏 男 はが１名特開
昭ＧＯ−１１４５００（３）
第２図
？
第２図FIG. 1 is a front view of a molding apparatus according to the present invention, and FIG. 2 shows its molding process. 1... Molding mold, 2.2'... Heater,
3... γ page thermal cutting blade, 22... sheet. Name of agent: Patent attorney Toshio Nakao (1 person) Japanese Patent Application Publication Sho GO-114500 (3) Figure 2? Figure 2
Claims (2)
シートを成形型により所望の形状に成形する第２工程と
、約６ｏ〜約１００″Ｃの状態で前記シートに所望の孔
を熱溶断により形成する第３工程とを備えたことを特徴
とする照明器具用グローブの成形方法。(1) A first step of heating a synthetic resin sheet, a second step of molding the sheet into a desired shape using a mold, and forming desired holes in the sheet at a temperature of about 6°C to about 100″C. A method for forming a globe for a lighting device, comprising a third step of forming the globe by thermal cutting.
シートを所望の形状に成形する成形型と、この成形型に
対向して前記シートに所望の孔を形成する熱溶断刃とを
一体的に装備したことを特徴とする照明器具用グローブ
の成形装置。(2) A heater that heats a synthetic resin sheet, a mold that molds the sheet into a desired shape, and a thermal cutting blade that faces the mold and forms the desired hole in the sheet are integrated. A molding device for a globe for lighting equipment, characterized in that it is equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22242583A JPS60114500A (en) | 1983-11-25 | 1983-11-25 | Method of molding globe for lighting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22242583A JPS60114500A (en) | 1983-11-25 | 1983-11-25 | Method of molding globe for lighting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60114500A true JPS60114500A (en) | 1985-06-20 |
Family
ID=16782190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22242583A Pending JPS60114500A (en) | 1983-11-25 | 1983-11-25 | Method of molding globe for lighting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60114500A (en) |
-
1983
- 1983-11-25 JP JP22242583A patent/JPS60114500A/en active Pending
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