JPH11245242A - Rotational molding machine for hollow resin molded article - Google Patents
Rotational molding machine for hollow resin molded articleInfo
- Publication number
- JPH11245242A JPH11245242A JP6199998A JP6199998A JPH11245242A JP H11245242 A JPH11245242 A JP H11245242A JP 6199998 A JP6199998 A JP 6199998A JP 6199998 A JP6199998 A JP 6199998A JP H11245242 A JPH11245242 A JP H11245242A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding machine
- hot air
- burner
- resin molded
- 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
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、合成樹脂パウダー
により中空樹脂成形品を製造する回転成形機に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary molding machine for producing a hollow resin molded product using a synthetic resin powder.
【０００２】[0002]
【従来の技術】例えば、自動車用の中空スポイラーのよ
うな中空樹脂成形品の成形には、図３で示すように、図
略の加熱炉内に回転可能に配置した金型１に合成樹脂パ
ウダーを入れて、回転する前記金型１に対し熱風ノズル
又はバーナー２で加熱する回転成形機が用いられてい
る。2. Description of the Related Art For example, as shown in FIG. 3, for molding a hollow resin molded article such as a hollow spoiler for an automobile, a synthetic resin powder is placed in a mold 1 rotatably disposed in a heating furnace (not shown). And a rotary molding machine that heats the rotating mold 1 with a hot air nozzle or a burner 2.
【０００３】[0003]
【発明が解決しようとする課題】上記回転成形機におい
ては、加熱中に金型１を連続的に回転させるため、金型
１の形状に合わせた熱風ノズル又はバーナー２の配置が
できない。そのため、図３のＡのように熱風ノズル又は
バーナー２に近い部分では過加熱となり、またＢのよう
に熱風ノズル又はバーナー２が離間している部分では温
度が上がらず、加熱中の金型温度分布が不均一となり、
成形品の板厚にバラツキが生じていた。この板厚のバラ
ツキは、製品の性能上の問題となることに加え、最低板
厚を保護するために必要以上の材料を投入することにな
り、費用、重量の面でも好ましいものではなかった。In the above rotary molding machine, since the mold 1 is continuously rotated during heating, the hot air nozzle or the burner 2 cannot be arranged according to the shape of the mold 1. Therefore, as shown in FIG. 3A, the portion close to the hot-air nozzle or the burner 2 is overheated, and the portion where the hot-air nozzle or the burner 2 is separated as shown in FIG. The distribution becomes uneven,
The thickness of the molded product was uneven. This variation in plate thickness is not only a problem in terms of the performance of the product, but also involves injecting more material than necessary to protect the minimum plate thickness, which is not preferable in terms of cost and weight.
【０００４】本発明の目的は、上記従来の問題に鑑み、
回転する金型に対し均等に加熱可能とし、金型温度分布
を均一化した中空樹脂成形品の回転成形機を提供するこ
とである。An object of the present invention is to solve the above-mentioned conventional problems,
An object of the present invention is to provide a rotary molding machine for a hollow resin molded product in which a rotating mold can be heated evenly and a mold temperature distribution is made uniform.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めの本発明の構成要旨は、合成樹脂パウダーを入れた金
型を加熱炉内で回転させ、前記金型を熱風ノズル又はバ
ーナーで加熱する中空樹脂成形品の回転成形機におい
て、前記熱風ノズル又はバーナーをアクチュエータによ
って前記金型に対し進退移動可能に設け、金型形状を検
知する型番検知センサーと、この型番検知センサーによ
って前記熱風ノズル又はバーナーの位置を金型形状に応
じて進退移動するコントローラとを備えたことを特徴と
するものである。The gist of the present invention to achieve the above object is to rotate a mold containing synthetic resin powder in a heating furnace and heat the mold with a hot air nozzle or a burner. In a rotary molding machine for a hollow resin molded product, the hot air nozzle or burner is provided so as to be able to move forward and backward with respect to the mold by an actuator, and a model number detection sensor for detecting a mold shape, and the hot air nozzle or A controller that moves the burner forward and backward in accordance with the shape of the mold.
【０００６】[0006]
【発明の実施の形態】以下本発明の実施の形態を図面に
基づいて説明する。図１において、１は金型であり、図
略の加熱炉内に回転可能に配置され、サーボモータ４に
よって連続的に回転する。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a mold, which is rotatably disposed in a heating furnace (not shown), and is continuously rotated by a servomotor 4.
【０００７】２は前記連続的に回転する金型１を加熱す
るバーナー（又は熱風ノズル）である。このバーナー２
はエアシリンダ等のアクチュエータ３によって金型１に
対し接近及び離間するよう進退移動可能に配置されてい
る。Reference numeral 2 denotes a burner (or hot air nozzle) for heating the continuously rotating mold 1. This burner 2
Is arranged to be able to move forward and backward so as to approach and separate from the mold 1 by an actuator 3 such as an air cylinder.
【０００８】さらに、金型１の近傍に金型形状を検知す
るための型番検知センサー５を設け、この型番検知セン
サー５による型番検知信号によって前記アクチュエータ
３を制御するコントローラ６を設けた構成である。この
コントローラ６は前記アクチュエータ３がエアシリンダ
の場合は、図略の電磁弁を制御してエアの供給を加減す
る。Further, a model number detection sensor 5 for detecting the shape of the mold is provided in the vicinity of the mold 1, and a controller 6 for controlling the actuator 3 by a model number detection signal from the model number detection sensor 5 is provided. . When the actuator 3 is an air cylinder, the controller 6 controls a solenoid valve (not shown) to control the supply of air.
【０００９】本発明は上記の通りの構成であるから、型
番検知センサー５は金型１のドグを検知し、コントロー
ラ６に金型コードナンバー信号を出力する。サーボモー
タ４は金型１の回転をコントロールし、金型回転角度信
号をコントローラ６へ出力する。Since the present invention is configured as described above, the model number detection sensor 5 detects the dog of the mold 1 and outputs a mold code number signal to the controller 6. The servo motor 4 controls the rotation of the mold 1 and outputs a mold rotation angle signal to the controller 6.
【００１０】前記金型コードナンバー信号と金型回転角
度信号を受けたコントローラ６は、予め教示された金型
の回転角度に合わせた作動パターンを行うための作動信
号をアクチュエータ３に送り、この作動信号により図２
で示すように、バーナー２を回転する金型１の形状に対
応して進退移動させ常に適正な距離を保持させる。The controller 6 having received the mold code number signal and the mold rotation angle signal sends an operation signal to the actuator 3 for performing an operation pattern corresponding to the mold rotation angle taught in advance. Figure 2 by signal
As shown by, the burner 2 is moved forward and backward in accordance with the shape of the rotating mold 1 to always maintain an appropriate distance.
【００１１】これにより、回転する金型１に対し金型温
度分布が均一にできるため、均一な肉厚をもつ中空成形
品を成形することができるのである。As a result, the mold temperature distribution can be made uniform with respect to the rotating mold 1, so that a hollow molded article having a uniform thickness can be formed.
【００１２】[0012]
【発明の効果】以上のように本発明によると、金型の回
転角度とバーナー（又は熱風ノズル）の進退タイミング
を同調させることで、成形品の形状によらず金型の温度
分布が均一にできるため、成形品の板厚を一定にするこ
とができ、材料使用量及び重量を低減することができる
利点がある。As described above, according to the present invention, by synchronizing the rotation angle of the mold and the advance / retreat timing of the burner (or hot air nozzle), the temperature distribution of the mold can be made uniform regardless of the shape of the molded product. Therefore, there is an advantage that the thickness of the molded product can be made constant, and the amount of material used and the weight can be reduced.
【図１】本発明による回転成形機の構造図FIG. 1 is a structural view of a rotary molding machine according to the present invention.
【図２】本発明による加熱動作を示す図FIG. 2 is a diagram showing a heating operation according to the present invention.
【図３】従来の加熱動作を示す図FIG. 3 is a diagram showing a conventional heating operation.
１ 金型 ２ バーナー（又は熱風ノズル） ３ アクチュエータ ４ サーボモータ ５ 型番検知センサー ６ コントローラ DESCRIPTION OF SYMBOLS 1 Die 2 Burner (or hot air nozzle) 3 Actuator 4 Servo motor 5 Model number detection sensor 6 Controller
Claims (1)
内で回転させ、前記金型を熱風ノズル又はバーナーで加
熱する中空樹脂成形品の回転成形機において、前記熱風
ノズル又はバーナーをアクチュエータによって前記金型
に対し進退移動可能に設け、金型形状を検知する型番検
知センサーと、この型番検知センサーによって前記熱風
ノズル又はバーナーの位置を金型形状に応じて進退移動
するコントローラとを備えたことを特徴とする中空樹脂
成形品の回転成形機。In a rotary resin molding machine for rotating a mold containing synthetic resin powder in a heating furnace and heating the mold with a hot air nozzle or a burner, the hot air nozzle or the burner is actuated by an actuator. A model number sensor is provided so as to be able to move forward and backward with respect to the mold, and a controller for moving the position of the hot air nozzle or the burner in accordance with the mold shape by the model number detection sensor for detecting the mold shape. A rotary molding machine for hollow resin molded products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6199998A JPH11245242A (en) | 1998-02-27 | 1998-02-27 | Rotational molding machine for hollow resin molded article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6199998A JPH11245242A (en) | 1998-02-27 | 1998-02-27 | Rotational molding machine for hollow resin molded article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11245242A true JPH11245242A (en) | 1999-09-14 |
Family
ID=13187433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6199998A Pending JPH11245242A (en) | 1998-02-27 | 1998-02-27 | Rotational molding machine for hollow resin molded article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11245242A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240832A (en) * | 2013-05-23 | 2013-08-14 | 无锡新开河储罐有限公司 | Automatic control method of mold temperature in rotational molding process |
-
1998
- 1998-02-27 JP JP6199998A patent/JPH11245242A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240832A (en) * | 2013-05-23 | 2013-08-14 | 无锡新开河储罐有限公司 | Automatic control method of mold temperature in rotational molding process |
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