JP2015196316A - Heat insulation/resin adhesion preventive cover for nozzle heater part of plastic injection molding machine - Google Patents
Heat insulation/resin adhesion preventive cover for nozzle heater part of plastic injection molding machine Download PDFInfo
- Publication number
- JP2015196316A JP2015196316A JP2014075063A JP2014075063A JP2015196316A JP 2015196316 A JP2015196316 A JP 2015196316A JP 2014075063 A JP2014075063 A JP 2014075063A JP 2014075063 A JP2014075063 A JP 2014075063A JP 2015196316 A JP2015196316 A JP 2015196316A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- cover
- heater
- resin
- nozzle heater
- 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
- 239000011347 resin Substances 0.000 title claims abstract description 24
- 229920005989 resin Polymers 0.000 title claims abstract description 24
- 238000009413 insulation Methods 0.000 title claims abstract description 6
- 238000001746 injection moulding Methods 0.000 title description 3
- 230000003449 preventive effect Effects 0.000 title 1
- 239000004744 fabric Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000010137 moulding (plastic) Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
本発明はプラスチック射出成形機のノズル先端からシリンダー先端まで覆うように装着し、ノズルヒーター部の温度安定化と成形時のノズル先端からの樹脂漏れによるノズルヒーター部への樹脂付着を解消したものである。 The present invention is installed so as to cover the tip of the plastic injection molding machine from the nozzle tip to the tip of the cylinder, eliminating the temperature stabilization of the nozzle heater part and the resin adhesion to the nozzle heater part due to resin leakage from the nozzle tip during molding. is there.
従来は、プラスチック射出成形機のノズルの温度安定化と樹脂の付着を解消するものは無かった。 Conventionally, there has been nothing that eliminates the temperature stabilization of the nozzle and the resin adhesion of the plastic injection molding machine.
プラスチック成形機には、製品となる樹脂を溶解させるためのシリンダーがあり、樹脂をシリンダーから製品金型に送り込むまでにノズルを通って送り込まれる。この際、ノズルには溶解された樹脂を冷まさない様にヒーターが設けられ、溶解されたままの温度（２００℃から３００℃くらい）で金型まで送り込めるように設計されている。ノズルはむき出しになっているため冬の寒い時期など外気温の影響を受けやすく、成形品の不良を多く出していた。ノズルの温度を安定させるためにノズルに断熱カバーを付けても、ノズルと金型が合わず樹脂が金型に入らずに飛び出す（樹脂漏れ）ことがよくあり、樹脂が断熱カバーに付いてしまう。断熱カバーに樹脂が付くと、断熱カバー自体は問題がないが、付いた樹脂は完全に取り払うことができず、ヒーターの温度によって樹脂が燃え火災に繋がる。樹脂が付いた断熱カバーは廃棄する他無かった。こういったデメリットが発生する為、ノズルに断熱カバーを装着することができなかった。本発明はそれを解消するものである。 A plastic molding machine has a cylinder for dissolving a resin as a product, and the resin is fed through a nozzle before the resin is fed from the cylinder to a product mold. At this time, the nozzle is provided with a heater so as not to cool the melted resin, and is designed to be fed to the mold at a melted temperature (about 200 ° C. to about 300 ° C.). Since the nozzle was exposed, it was easily affected by the outside air temperature, such as during cold winters, and many defective molded products were produced. Even if a thermal insulation cover is attached to the nozzle to stabilize the nozzle temperature, the nozzle and the mold do not match and the resin often jumps out without entering the mold (resin leakage), and the resin adheres to the thermal insulation cover. . When the resin is attached to the heat insulating cover, there is no problem with the heat insulating cover itself, but the attached resin cannot be completely removed, and the resin burns depending on the temperature of the heater, leading to a fire. The thermal insulation cover with resin was not discarded. Because of these disadvantages, it was impossible to attach a heat insulating cover to the nozzle. The present invention solves this problem.
ノズル先端1を出す様にノズルカバー２に穴３を開け、ノズルからシリンダー４までおおうようにノズルカバー２を被せる。この際、ノズルカバー２に金属を用いるとノズルヒーター５と接触し、ショートする可能性があるのと金型６の斜面に接触しないように、ノズルカバー２は耐熱性あるのガラスクロスやシリカクロスなど耐熱布が一番良い。ノズル先端１の穴３をノズル先端１の大きさとあった穴を開けることにより、ノズルと金型６のタッチが合わず跳ね返った樹脂がノズルヒーター５に付着することを軽減できる。ノズルほぼ全域をノズルカバー２で覆う形になるので外気温を影響を無くし、ノズルを保温することを可能にした。 A hole 3 is made in the nozzle cover 2 so as to bring out the nozzle tip 1, and the nozzle cover 2 is covered so as to cover from the nozzle to the cylinder 4. At this time, if a metal is used for the nozzle cover 2, the nozzle cover 2 is in contact with the nozzle heater 5, so that there is a possibility of short-circuiting, and the nozzle cover 2 is made of a heat-resistant glass cloth or silica cloth so as not to contact the slope of the mold 6. Heat resistant cloth is the best. By making a hole that matches the size of the nozzle tip 1 in the hole 3 at the nozzle tip 1, it is possible to reduce adhesion of the resin that bounces off the touch of the nozzle and the mold 6 to the nozzle heater 5. Since the entire nozzle area is covered with the nozzle cover 2, the outside air temperature is not affected and the nozzle can be kept warm.
ノズルヒーター部の温度を安定させる事で成形時の温度変化による不良品を減らす。またノズルと金型の接触があわず樹脂漏れした場合の樹脂がノズルヒーターに付着し、ノズルヒーターが破損するを軽減できる。 By stabilizing the temperature of the nozzle heater, defective products due to temperature changes during molding are reduced. Moreover, when the resin leaks without contact between the nozzle and the mold, the resin adheres to the nozzle heater, and the damage to the nozzle heater can be reduced.
以下、本発明の実施形態について説明する。
図１で示すように、ノズル先端１にあわせた穴３を開けたノズルカバー２をノズル先端１からシリンダー４までを覆うように被せる。この際、ノズルカバー２をガラスクロスなど耐熱布を使用することにより、ノズルヒーター５と接触してショートすることや、金型６の斜面にノズルカバー２が当たって邪魔になることもない。ノズルやシリンダー４の大きさは機械によって異なるため、その都度、機械にあったノズルカバー２を作成する。このようにノズルカバー２でノズルヒーター５を覆うことにより、空気の流通が無くなり、ノズルカバー２内の空気層でノズルを保温できる。また。ノズルカバー２の穴３をノズル先端１に合わせて製作するこにより、樹脂漏れした樹脂がノズルヒーター５に付着することを軽減できる。
Hereinafter, embodiments of the present invention will be described.
As shown in FIG. 1, a nozzle cover 2 having a hole 3 aligned with the nozzle tip 1 is covered so as to cover the nozzle tip 1 to the cylinder 4. At this time, by using a heat-resistant cloth such as a glass cloth for the nozzle cover 2, the nozzle cover 2 does not come into contact with the nozzle heater 5 and is short-circuited. Since the size of the nozzle and cylinder 4 varies depending on the machine, the nozzle cover 2 suitable for the machine is created each time. By covering the nozzle heater 5 with the nozzle cover 2 in this way, air circulation is eliminated and the nozzle can be kept warm by the air layer in the nozzle cover 2. Also. By manufacturing the hole 3 of the nozzle cover 2 in accordance with the nozzle tip 1, it is possible to reduce the resin leaking resin from adhering to the nozzle heater 5.
１ ノズル先端
２ ノズルカバー
３ 穴
４ シリンダー
５ ノズルヒーター
６ 金型
1 Nozzle tip 2 Nozzle cover 3 Hole 4 Cylinder 5 Nozzle heater 6 Mold
Claims (4)
ノズルヒーターを覆い、
ノズルヒーターの保温を特徴としたカバー。 Make a hole to pass the nozzle through a heat-resistant cloth such as glass cloth,
Cover the nozzle heater,
A cover characterized by the thermal insulation of the nozzle heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014075063A JP2015196316A (en) | 2014-04-01 | 2014-04-01 | Heat insulation/resin adhesion preventive cover for nozzle heater part of plastic injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014075063A JP2015196316A (en) | 2014-04-01 | 2014-04-01 | Heat insulation/resin adhesion preventive cover for nozzle heater part of plastic injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2015196316A true JP2015196316A (en) | 2015-11-09 |
Family
ID=54546338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014075063A Pending JP2015196316A (en) | 2014-04-01 | 2014-04-01 | Heat insulation/resin adhesion preventive cover for nozzle heater part of plastic injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2015196316A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108698295A (en) * | 2016-03-31 | 2018-10-23 | 住友重机械工业株式会社 | Injection (mo(u)lding) machine |
| CN108688048A (en) * | 2017-03-31 | 2018-10-23 | 住友重机械工业株式会社 | Injection (mo(u)lding) machine |
-
2014
- 2014-04-01 JP JP2014075063A patent/JP2015196316A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108698295A (en) * | 2016-03-31 | 2018-10-23 | 住友重机械工业株式会社 | Injection (mo(u)lding) machine |
| CN108698295B (en) * | 2016-03-31 | 2020-12-11 | 住友重机械工业株式会社 | Injection molding machine |
| CN108688048A (en) * | 2017-03-31 | 2018-10-23 | 住友重机械工业株式会社 | Injection (mo(u)lding) machine |
| JP2018171862A (en) * | 2017-03-31 | 2018-11-08 | 住友重機械工業株式会社 | Injection molding machine |
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