JPH11170301A - Heating barrel centering apparatus of injection molding machine - Google Patents
Heating barrel centering apparatus of injection molding machineInfo
- Publication number
- JPH11170301A JPH11170301A JP36402497A JP36402497A JPH11170301A JP H11170301 A JPH11170301 A JP H11170301A JP 36402497 A JP36402497 A JP 36402497A JP 36402497 A JP36402497 A JP 36402497A JP H11170301 A JPH11170301 A JP H11170301A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- resin
- molding machine
- injection
- injection molding
- 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
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
- B29C45/1781—Aligning injection nozzles with the mould sprue bush
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は射出成形機の加熱バレル
芯出し装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating barrel centering device for an injection molding machine.
【０００２】[0002]
【従来技術】従来の射出成形機図３に示すように、固定
盤１に取付けた固定金型２に対し、図示してない型締手
段により可動盤３に取付けた可動金型４を当接させ，両
金型２および４により形成された金型キャビティ内に射
出装置５の加熱バレル６の先端にあるノズル７を固定金
型２に有る樹脂注入口８に当接させ、前記樹脂注入口８
を介して溶融樹脂を注入し、成形品を得るようにしてい
る。2. Description of the Related Art A conventional injection molding machine As shown in FIG. 3, a movable mold 4 attached to a movable platen 3 is brought into contact with a fixed mold 2 attached to a fixed platen 1 by mold clamping means (not shown). Then, the nozzle 7 at the tip of the heating barrel 6 of the injection device 5 is brought into contact with the resin injection port 8 of the fixed die 2 in the mold cavity formed by the two dies 2 and 4. 8
Through which the molten resin is injected to obtain a molded product.
【０００３】[0003]
【発明が解決しょうとする課題】かくして、溶融樹脂の
注入時には樹脂注入口およびノズルが一直線上にないと
高温、高圧の溶融樹脂が樹脂注入口とノズルの間から漏
れたり、ノズルからの空気の吸込みによる成形不良が発
生したり、或いは偏荷重による射出成形機構造部の撓
み、捩じれによる部材のカジリが発生し、射出成形機の
寿命の低下や騒音の増加等を生じた。Thus, when the molten resin is injected, if the resin injection port and the nozzle are not in a straight line, the high-temperature and high-pressure molten resin leaks from between the resin injection port and the nozzle, or the air from the nozzle is discharged. Molding failure due to suction occurred, or the structure of the injection molding machine was bent or twisted due to unbalanced load, resulting in the occurrence of galling of the members, which reduced the life of the injection molding machine and increased noise.
【０００４】本発明の目的は前述のような溶融樹脂注入
時には樹脂注入口およびノズルが一直線上にないことに
起因する成形品の不良、および射出成形機の寿命の低下
や騒音の増加等を無くすための射出成形機の加熱バレル
芯出し装置を提供することにある。[0004] An object of the present invention is to eliminate the defects of molded products due to the fact that the resin injection port and the nozzle are not aligned when the molten resin is injected as described above, and to reduce the life of the injection molding machine and increase noise. To provide a heating barrel centering device for an injection molding machine.
【０００５】[0005]
【課題を解決するための手段】前述の目的を達成するた
め本発明は固定盤に取付けた固定金型に対し、可動盤に
取付けた可動金型を当接させ、両金型により金型キャビ
ティを形成させ、射出装置の加熱バレル先端のノズルか
ら固定金型に有る樹脂注入口を介して前記金型キャビテ
ィ内に溶融樹脂を射出する射出成形機の加熱バレル芯出
し装置において、加熱バレル先端部付近に設けた固定盤
に対向した面にノズルの樹脂射出用孔と樹脂注入口を結
ぶ軸線Ａから所定距離Ｌ1 およびＬ2 位置に夫々平行に
穴を設けたフランジ状のバレルヘッドと、前記固定盤の
射出装置側の面の前記バレルヘッドの平行穴に対向する
位置に射出装置側に突出され、ノズルタッチ時に前記バ
レルヘッドの平行穴に夫々嵌着する一対の平行ピンを有
してなる射出成形機の加熱バレル芯出し装置とした。According to the present invention, a movable mold mounted on a movable plate is brought into contact with a fixed mold mounted on a fixed plate, and a mold cavity is formed by both dies. In a heating barrel centering device of an injection molding machine for injecting a molten resin into the mold cavity through a resin injection port in a fixed mold from a nozzle at a heating barrel tip of an injection device, a heating barrel tip portion a flange-shaped barrel head provided with respective parallel holes in a predetermined distance L 1 and L 2 position from the axis a connecting the resin injection hole and resin injection port of the nozzle to the face facing the stationary platen provided in the vicinity of, the The fixed plate has a pair of parallel pins that protrude toward the injection device at a position facing the parallel hole of the barrel head on the surface of the fixed device facing the injection device, and respectively fit into the parallel holes of the barrel head when a nozzle is touched. Injection molding machine ).
【０００６】[0006]
【発明の実施の形態】本発明は射出成形機の加熱バレル
芯出し装置において、加熱バレル先端部付近に設けたフ
ランジ状のバレルヘッドの固定盤側の面にノズルと樹脂
注入口を結ぶ軸線Ａから所定距離Ｌ1 およびＬ2 位置に
夫々平行に穴を設け、ノズルタッチ時に同平行穴に固定
盤の射出装置側の面にバレルヘッドの平行穴に対向した
位置に設けた射出装置側に突出された一対の平行ピンを
嵌着させ、樹脂注入口およびノズルが一直線上に有るよ
うになした。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a heating barrel centering apparatus for an injection molding machine, wherein an axis A connecting a nozzle and a resin injection port is provided on a surface of a flange-shaped barrel head provided near a tip end of the heating barrel on a fixed plate side. respectively parallel to the hole provided at a predetermined distance L 1 and L 2 position from projecting the injection apparatus provided at a position opposed to the parallel hole surface in the barrel head of the injection apparatus side of the fixed plate in the parallel holes at the nozzle touch The pair of parallel pins thus fitted were fitted so that the resin injection port and the nozzle were on a straight line.
【０００７】[0007]
【実施例】本発明の１実施例を図１および図２により説
明すると、２０は先端部付近に設けたフランジ状のバレ
ルヘッド２１を設けた加熱バレルで、先端部には溶融樹
脂を射出するノズル孔２２を有するノズル２３が取付け
てある。このノズル２３のノズル孔２２は射出時に固定
盤２４に取付けた固定金型２５の樹脂注入口２６にノズ
ルタッチし、溶融樹脂を図示してない金型キャビティ内
に射出注入するようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 20 denotes a heating barrel provided with a flange-shaped barrel head 21 provided near the tip, and a molten resin is injected into the tip. A nozzle 23 having a nozzle hole 22 is attached. At the time of injection, the nozzle hole 22 of the nozzle 23 comes into contact with the resin injection port 26 of the fixed mold 25 attached to the fixed board 24 so as to inject the molten resin into the mold cavity (not shown). .
【０００８】前記バレルヘッド２１の固定盤に対向した
面には一対の平行穴２７、２８がノズル孔２２と樹脂注
入口２６を結ぶ軸線Ａから所定距離Ｌ1 およびＬ2 設け
てあり、対向する固定盤２４の射出装置側の面には前記
バレルヘッド２１の一対の平行穴２７および２８の位置
に一対の平行ピン２９、３０が設けてある。On the surface of the barrel head 21 facing the fixed plate, a pair of parallel holes 27 and 28 are provided at predetermined distances L 1 and L 2 from an axis A connecting the nozzle hole 22 and the resin inlet 26. A pair of parallel pins 29 and 30 are provided at the position of the pair of parallel holes 27 and 28 of the barrel head 21 on the surface of the fixed platen 24 on the side of the injection device.
【０００９】以上説明したような構成となっているの
で、射出時にノズル２３のノズル孔２２が固定金型２５
の樹脂注入口２６にノズルタッチすると、固定盤２４に
取付けた一対の平行ピン２９および３０がバレルヘッド
２１の一対の平行穴２７および２８に夫々嵌着し、ノズ
ル孔２２と樹脂注入口２６は軸線Ａ上に在り、ノズル孔
２２は樹脂注入口２６から外れることがない。With the above-described structure, the nozzle hole 22 of the nozzle 23 is set in the fixed mold 25 at the time of injection.
When the nozzle touches the resin injection port 26, the pair of parallel pins 29 and 30 attached to the fixed board 24 are fitted into the pair of parallel holes 27 and 28 of the barrel head 21, respectively, and the nozzle hole 22 and the resin injection port 26 The nozzle hole 22 is on the axis A and does not come off the resin injection port 26.
【００１０】[0010]
【発明の効果】以上説明したように溶融樹脂注入時には
樹脂注入口およびノズルが一直線上にあり、成形不良が
発生したり、或いは偏荷重による射出成形機構造部の撓
み、捩じれによる部材のカジリが発生し、射出成形機の
寿命の低下や騒音の増加等を無くすことができた。As described above, when the molten resin is injected, the resin injection port and the nozzle are in a straight line, and molding failure occurs, or the deformation of the structure of the injection molding machine due to the unbalanced load and the tangling of the member due to the twisting. As a result, a reduction in the life of the injection molding machine and an increase in noise could be eliminated.
【図１】本発明の１実施例を示す図で、ノズルタッチ前
の状態図。FIG. 1 is a view showing one embodiment of the present invention, and is a state diagram before a nozzle touch.
【図２】本発明の１実施例を示す図で、ノズルタッチ後
の状態図。FIG. 2 is a view showing one embodiment of the present invention, and is a state diagram after a nozzle touch.
【図３】従来のノズルタッチ後の状態を示す説明図。。FIG. 3 is an explanatory diagram showing a state after a conventional nozzle touch. .
【符号の説明】 ２０ 加熱バレル ２１ バレルヘッド ２２ ノズル孔 ２３ ノズル ２４ 固定盤 ２５ 固定金型 ２６ 樹脂注入口 ２７、２８ 平行穴 ２９、３０ 平行ピン[Description of Signs] 20 Heating barrel 21 Barrel head 22 Nozzle hole 23 Nozzle 24 Fixed platen 25 Fixed mold 26 Resin injection port 27, 28 Parallel hole 29, 30 Parallel pin
Claims (1)
盤に取付けた可動金型を当接させ、両金型により金型キ
ャビティを形成させ、射出装置の加熱バレル先端のノズ
ルから固定金型に有る樹脂注入口を介して前記金型キャ
ビティ内に溶融樹脂を射出する射出成形機の加熱バレル
芯出し装置において、加熱バレル先端部付近に設けた固
定盤に対向した面にノズルの樹脂射出用孔と樹脂注入口
を結ぶ軸線Ａから所定距離Ｌ1 およびＬ2 位置に夫々平
行に穴を設けたフランジ状のバレルヘッドと、前記固定
盤の射出装置側の面の前記バレルヘッドの平行穴に対向
する位置に射出装置側に突出され、ノズルタッチ時に前
記バレルヘッドの平行穴に夫々嵌着する一対の平行ピン
を有してなる射出成形機の加熱バレル芯出し装置。1. A movable mold attached to a movable plate is brought into contact with a fixed mold attached to a fixed plate, and a mold cavity is formed by both molds, and fixed from a nozzle at a tip of a heating barrel of an injection device. In a heating barrel centering device of an injection molding machine for injecting a molten resin into the mold cavity through a resin injection port in a mold, a resin of a nozzle is provided on a surface opposed to a fixed plate provided near a tip of the heating barrel. A flange-shaped barrel head provided with holes in parallel at predetermined distances L 1 and L 2 from an axis A connecting the injection hole and the resin injection port, and a parallel connection of the barrel head on the injection device side surface of the fixed platen. A heated barrel centering device for an injection molding machine, comprising a pair of parallel pins protruding toward the injection device at a position facing the hole and fitting into the parallel holes of the barrel head at the time of nozzle touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36402497A JPH11170301A (en) | 1997-12-17 | 1997-12-17 | Heating barrel centering apparatus of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36402497A JPH11170301A (en) | 1997-12-17 | 1997-12-17 | Heating barrel centering apparatus of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11170301A true JPH11170301A (en) | 1999-06-29 |
Family
ID=18480792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36402497A Pending JPH11170301A (en) | 1997-12-17 | 1997-12-17 | Heating barrel centering apparatus of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11170301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1557255A2 (en) * | 2004-01-22 | 2005-07-27 | Fanuc Ltd | Injection molding machine and centering method for the injection molding machine |
-
1997
- 1997-12-17 JP JP36402497A patent/JPH11170301A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1557255A2 (en) * | 2004-01-22 | 2005-07-27 | Fanuc Ltd | Injection molding machine and centering method for the injection molding machine |
| EP1557255A3 (en) * | 2004-01-22 | 2005-11-09 | Fanuc Ltd | Injection molding machine and centering method for the injection molding machine |
| US7665978B2 (en) | 2004-01-22 | 2010-02-23 | Fanuc Ltd | Injection molding machine having a centering device for centering a nozzle hole |
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