JPH0352327B2 - - Google Patents
Info
- Publication number
- JPH0352327B2 JPH0352327B2 JP59076225A JP7622584A JPH0352327B2 JP H0352327 B2 JPH0352327 B2 JP H0352327B2 JP 59076225 A JP59076225 A JP 59076225A JP 7622584 A JP7622584 A JP 7622584A JP H0352327 B2 JPH0352327 B2 JP H0352327B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- insert
- foam
- sensing device
- absence
- 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
Classifications
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
- B29C45/842—Detection of insert defects, e.g. inaccurate position, breakage
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（発明の分野）
本発明はインサートを有する合成樹脂発泡体を
一体成形する際に用いる成形型に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to a mold used when integrally molding a synthetic resin foam having an insert.
（従来技術の説明）
ウレタンフオームに代表される発泡体の成形品
は、例えば自動車のインストルメントパツド、ウ
レタンバンパー等のように、その発泡体成形品を
自動車ボデイ等の本体に取り付ける為、あるいは
補強の為に内部に主として金属製のインサートを
有することが多い。そして、このような発泡体を
成形する型としては、発泡体の成形時にインサー
トを同時に埋設できるように、インサートをキヤ
ビテイにセツト可能としたものが用いられてい
る。そして、そのような成形型は、インサートの
固定を磁石あるいはピン等によつて行なうのであ
るが、作業者の不注意あるいは不馴れからインサ
ートのセツト忘れ又はセツト位置の狂いが生じた
り、歪等のインサートの形状不良から正確な位置
にセツトされないことがあり、そのような状態で
発泡成形が行なわれると、得られる成形体は不良
品となるばかりでなく、閉型時に成形型がセツト
不良のインサートにより破損する虞もあつた。(Description of Prior Art) Foam molded products, typically urethane foam, are used to attach the foam molded product to the main body of an automobile, such as an automobile instrument pad, urethane bumper, etc. They often have internal inserts, mainly made of metal, for reinforcement. As a mold for molding such a foam, a mold is used in which the insert can be set in the cavity so that the insert can be buried at the same time as the foam is molded. In such molds, the inserts are fixed using magnets or pins, but due to operator carelessness or inexperience, the inserts may be forgotten to be set or misaligned, or the insert may become distorted. If foam molding is carried out under such conditions, not only will the resulting molded product be a defective product, but also the mold will fail due to the improperly set insert when the mold is closed. There was also a risk of damage.
（発明の目的）
本発明は前記の点に鑑みてなされたもので、イ
ンサートの有無及びセツト状態の不良を感知する
感知装置を有する発泡体の成形型を提供するもの
である。(Object of the Invention) The present invention has been made in view of the above points, and provides a mold for a foam body having a sensing device for sensing the presence or absence of an insert and a defective set state.
（発明の構成）
前記の目的で行なわれた本発明の要旨は、発泡
体の成形型がインサートの有無及びセツト不良を
感知する感知装置を有するところにある。(Structure of the Invention) The gist of the present invention, which has been achieved for the above-mentioned purpose, resides in that the mold for the foam has a sensing device that senses the presence or absence of an insert and the presence or absence of an insert.
以下本発明一実施例について図面により説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
第１図及び第１図の切断線Ａ−Ａ線に沿う部分
断面図である第２図に示す自動車のインストルメ
ントパツドの成形型は、上型１及び下型２よりな
り、更に下型２は２ａ，２ｂ，２ｃの３つに分割
され、アンダーカツト部を有するインストルメン
トパツドの成形を可能としている。そして上型１
にはインサートＢ，Ｃの位置決め及び固定用に磁
石３及びピン４を有し、そのインサートのセツト
部には、インサートの有無及びそのセツト不良を
感知する近接スイツチからなる感知装置５が埋設
されている。その感知装置５において発生するイ
ンサートの有無等の信号は制御装置６に送られ、
更にそこから電光パネル７あるいは型締装置若し
くは発泡注入機へ制御信号が送られて、インサー
トのセツト状態が表示され、あるいは型締装置若
しくは発泡注入機がインサートのセツト不良時に
作動しないようにコントロールされる。 The mold for an automobile instrument pad shown in FIG. 1 and FIG. 2, which is a partial sectional view taken along the cutting line A-A in FIG. 2 is divided into three parts 2a, 2b, and 2c, making it possible to mold an instrument pad having an undercut portion. And upper mold 1
has a magnet 3 and a pin 4 for positioning and fixing the inserts B and C, and a sensing device 5 consisting of a proximity switch that detects the presence or absence of the insert and whether it is improperly set is embedded in the insert setting section. There is. Signals such as the presence or absence of the insert generated in the sensing device 5 are sent to the control device 6.
Further, a control signal is sent from there to the electric panel 7 or the mold clamping device or the foam injection machine to display the setting status of the insert, or to control the mold clamping device or the foam injection machine so that it does not operate when the insert is improperly set. Ru.
感知装置５として用いられる近接スイツチには
種々の型が存在するが、検出距離が約１〜数十mm
と小さい高周波発振形が好ましい。この高周波発
振形の近接スイツチは、高周波発振回路中の発振
コイルのインピーダンス変化によつて発振を停止
させて検出するものである。尚、本実施例におい
ては、検出距離可変範囲が0.3〜1.5mmである、立
石電機株式会社製E2C−X1R5Aを用いた。 There are various types of proximity switches used as the sensing device 5, but the detection distance is about 1 to several tens of mm.
A high frequency oscillation type with a small size is preferable. This high frequency oscillation type proximity switch detects by stopping oscillation by changing the impedance of the oscillation coil in the high frequency oscillation circuit. In this example, E2C-X1R5A manufactured by Tateishi Electric Co., Ltd., which has a variable detection distance range of 0.3 to 1.5 mm, was used.
（発明の効果）
前記の如く本発明による成形型は、インサート
の有無及びセツト不良を感知することができるも
のであり、インサートの未装着あるいはセツト不
良の状態で発泡体を成形することがなくなり成形
品が不良となつたり、成形型を損傷する虞れがな
い。(Effects of the Invention) As described above, the mold according to the present invention is capable of detecting the presence or absence of an insert and whether it is improperly set, which eliminates the need to mold a foam with an insert not installed or improperly set. There is no risk of the product becoming defective or damaging the mold.
図面は本発明は一実施例に関し、第１図はイン
ストルメントパツド用の成形型の断面図、第２図
は第１図中の切断線Ａ−Ａ線に沿う部分断面図
で、図中１は上型、２は下型、３は磁石、４はピ
ン、５は感知装置、Ａ及びＢはインサートであ
る。
The drawings relate to one embodiment of the present invention, and FIG. 1 is a sectional view of a mold for an instrument pad, and FIG. 2 is a partial sectional view taken along the cutting line A-A in FIG. 1 is an upper mold, 2 is a lower mold, 3 is a magnet, 4 is a pin, 5 is a sensing device, and A and B are inserts.
Claims (1)
感知装置を有することを特徴とする発泡体の成形
型。 ２ 特許請求の範囲第１項において感知装置が近
接スイツチからなることを特徴とする発泡体の成
形型。[Scope of Claims] 1. A foam mold characterized by having a sensing device for sensing the presence or absence of an insert and a setting failure. 2. A mold for a foam according to claim 1, characterized in that the sensing device comprises a proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59076225A JPS60219017A (en) | 1984-04-16 | 1984-04-16 | Mold for foamed product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59076225A JPS60219017A (en) | 1984-04-16 | 1984-04-16 | Mold for foamed product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60219017A JPS60219017A (en) | 1985-11-01 |
| JPH0352327B2 true JPH0352327B2 (en) | 1991-08-09 |
Family
ID=13599230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59076225A Granted JPS60219017A (en) | 1984-04-16 | 1984-04-16 | Mold for foamed product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60219017A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7014453B2 (en) * | 2002-12-17 | 2006-03-21 | Lear Corporation | Machine having sensors for controlling molding operation |
| CH703208A1 (en) | 2010-05-19 | 2011-11-30 | Kistler Holding Ag | Method for the detection of insert objects in an injection part. |
| CN106113430A (en) * | 2016-06-21 | 2016-11-16 | 歌尔股份有限公司 | Mould enters sub-monitoring system, mold system and using method thereof |
-
1984
- 1984-04-16 JP JP59076225A patent/JPS60219017A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60219017A (en) | 1985-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |