JPS641919U - - Google Patents
Info
- Publication number
- JPS641919U JPS641919U JP9573787U JP9573787U JPS641919U JP S641919 U JPS641919 U JP S641919U JP 9573787 U JP9573787 U JP 9573787U JP 9573787 U JP9573787 U JP 9573787U JP S641919 U JPS641919 U JP S641919U
- Authority
- JP
- Japan
- Prior art keywords
- purging
- temperature
- predetermined
- start signal
- control means
- 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
- 238000010926 purge Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図は、本考案に従う射出成形機の一例を概
略的に示す説明図であり、第２図は、第１図の射
出成形機におけるノズルヒータ加熱回路の一例を
示す回路図である。第３図、第４図および第８図
は、それぞれ、本考案の別の実施例のノズルヒー
タ加熱回路を示す回路図であり、第５図、第６図
および第７図は、それぞれ、本考案の更に別の実
施例を説明するためのノズルヒータ加熱回路の要
部を示す回路図である。
１０：加熱シリンダ、１４，２０：バンドヒー
タ（加熱手段）、１６：射出ノズル、１８：ノズ
ルヒータ加熱回路、２６：熱電対、２８：パージ
ング開始スイツチ、３０：通常成形用温調装置、
３２：パージング用温調装置（ノズル昇温手段）
、３３：メーク接点、３４：電磁接触器、３８：
リレー、４０：スライダツク、４２：昇温タイマ
、４２ａ：限時接点。
FIG. 1 is an explanatory diagram schematically showing an example of an injection molding machine according to the present invention, and FIG. 2 is a circuit diagram showing an example of a nozzle heater heating circuit in the injection molding machine of FIG. 1. 3, 4, and 8 are circuit diagrams showing nozzle heater heating circuits of other embodiments of the present invention, and FIGS. 5, 6, and 7 are circuit diagrams, respectively, of another embodiment of the present invention. FIG. 7 is a circuit diagram showing a main part of a nozzle heater heating circuit for explaining still another embodiment of the present invention. 10: heating cylinder, 14, 20: band heater (heating means), 16: injection nozzle, 18: nozzle heater heating circuit, 26: thermocouple, 28: purging start switch, 30: temperature control device for normal molding,
32: Purging temperature control device (nozzle temperature raising means)
, 33: Make contact, 34: Magnetic contactor, 38:
Relay, 40: Slider, 42: Temperature rising timer, 42a: Time limit contact.
Claims (1)
められたパージング操作を自動的に行なうパージ
ング制御手段を備え、前記パージング開始信号を
発生させることにより、所定の加熱手段による、
シリンダと該シリンダの先端部に設けられた射出
ノズルとの加熱下において、前記パージング制御
手段にて前記パージング操作を自動的に行なわせ
るようにした、自動パージング機能を有する射出
成形機において、 前記パージング開始信号に基づいて、前記射出
ノズルの温度を通常成形運転時における加熱温度
よりも高い所定のパージ温度に昇温せしめるノズ
ル昇温手段と、かかるノズル昇温手段による昇温
操作にて該射出ノズルの温度が該パージ温度に達
したことを直接若しくは間接的に検出して、パー
ジ温度検出信号を出力するパージ温度検出手段と
を設け、該パージ温度検出手段から出力されるパ
ージ温度検出信号に基づいて、前記パージング制
御手段によるパージング操作を開始させるように
したことを特徴とする自動パージング機能を有す
る射出成形機。[Claims for Utility Model Registration] A purging control means for automatically performing a predetermined purging operation based on a predetermined purging start signal is provided, and by generating the purging start signal, a predetermined heating means is provided.
In an injection molding machine having an automatic purging function, the purging control means automatically performs the purging operation while the cylinder and the injection nozzle provided at the tip of the cylinder are heated. a nozzle temperature raising means for raising the temperature of the injection nozzle to a predetermined purge temperature higher than the heating temperature during normal molding operation based on the start signal; purge temperature detection means for directly or indirectly detecting that the temperature of An injection molding machine having an automatic purging function, characterized in that the purging control means starts a purging operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987095737U JPH056090Y2 (en) | 1987-06-22 | 1987-06-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987095737U JPH056090Y2 (en) | 1987-06-22 | 1987-06-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS641919U true JPS641919U (en) | 1989-01-09 |
| JPH056090Y2 JPH056090Y2 (en) | 1993-02-17 |
Family
ID=30960649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987095737U Expired - Lifetime JPH056090Y2 (en) | 1987-06-22 | 1987-06-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH056090Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609665U (en) * | 1983-06-30 | 1985-01-23 | 株式会社東芝 | emboss imprinter |
| JPS60242021A (en) * | 1984-05-07 | 1985-12-02 | Mitsubishi Heavy Ind Ltd | Color change or resin change method |
| JPS6120720A (en) * | 1984-07-09 | 1986-01-29 | Toshiba Mach Co Ltd | Change of resin or color in injection molding machine |
-
1987
- 1987-06-22 JP JP1987095737U patent/JPH056090Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609665U (en) * | 1983-06-30 | 1985-01-23 | 株式会社東芝 | emboss imprinter |
| JPS60242021A (en) * | 1984-05-07 | 1985-12-02 | Mitsubishi Heavy Ind Ltd | Color change or resin change method |
| JPS6120720A (en) * | 1984-07-09 | 1986-01-29 | Toshiba Mach Co Ltd | Change of resin or color in injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH056090Y2 (en) | 1993-02-17 |
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