JPH06170862A - Method for coating screw rotor with resin - Google Patents
Method for coating screw rotor with resinInfo
- Publication number
- JPH06170862A JPH06170862A JP4350798A JP35079892A JPH06170862A JP H06170862 A JPH06170862 A JP H06170862A JP 4350798 A JP4350798 A JP 4350798A JP 35079892 A JP35079892 A JP 35079892A JP H06170862 A JPH06170862 A JP H06170862A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- screw type
- type rotor
- mold
- coating
- 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.)
- Withdrawn
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ねじ式ロータの表面に
樹脂をコーティングするねじ式ロータの樹脂コーティン
グ方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin coating method for a screw type rotor, which coats a resin on the surface of the screw type rotor.
【０００２】[0002]
【従来の技術】従来、図７に示すようにコーティング層
１００の中心部に樹脂注入口１０１の中心を合わせ、下
方から型内に樹脂を注入してねじ式ロータ１０２の表面
にコーティング材としての樹脂１０３をコーティングす
る方法が知られている。2. Description of the Related Art Conventionally, as shown in FIG. 7, the center of a resin injection port 101 is aligned with the center of a coating layer 100, and resin is injected into a mold from below to form a coating material on the surface of a screw type rotor 102. A method of coating the resin 103 is known.
【０００３】[0003]
【発明が解決しようとする課題】従来の技術では、図８
に示すようにコーティング材としての樹脂１０３がねじ
式ロータ１０２の表面の流れ易い場所１０４のみを通っ
てロータ１０２の上面に早く上昇してしまい、他の歯元
に広がらず、更に上面に上がった樹脂１０３が下方に流
れ込んでエア１０５の巻き込みを発生し、コーティング
されないロータ１０２の表面が形成されるという問題点
を有していた。According to the conventional technique, as shown in FIG.
As shown in, the resin 103 as the coating material quickly rises to the upper surface of the rotor 102 only through the place 104 on the surface of the screw type rotor 102 where it easily flows, and does not spread to other tooth bases, and further rises to the upper surface. There is a problem in that the resin 103 flows downward, causing the air 105 to be entrained and forming an uncoated surface of the rotor 102.
【０００４】本発明は、従来の技術が有するこのような
問題点に鑑みてなされたものであり、その目的とすると
ころは、ねじ式ロータ表面のコーティングに際しコーテ
ィング表面及び内側に気泡が侵入することなく、凹みや
空洞が生じないねじ式ロータの樹脂コーティング方法を
提供しようとするものである。The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to prevent bubbles from entering the coating surface and the inside when coating the surface of a screw rotor. Therefore, it is an object of the present invention to provide a resin coating method for a screw type rotor that does not cause a recess or a cavity.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決すべく本
発明は、中央にシャフトを有し、外周に複数の歯部を有
して成るねじ式ロータの樹脂コーティング方法におい
て、治具に支持された型に前記ねじ式ロータをセットし
た状態で前記歯部の肉厚センタの真下になるように設け
た樹脂注入口から前記型内に樹脂を注入して前記ねじ式
ロータの表面を樹脂でコーティングするものである。In order to solve the above-mentioned problems, the present invention provides a resin coating method for a screw type rotor having a shaft at the center and a plurality of teeth on the outer periphery, and the method is supported by a jig. With the screw type rotor set in the mold, resin is injected into the mold from a resin injection port provided just below the thickness center of the tooth portion, and the surface of the screw rotor is made of resin. It is to be coated.
【０００６】また、前記樹脂注入口を前記ねじ式ロータ
の各歯部毎に設けるとよい。Further, the resin injection port may be provided for each tooth portion of the screw type rotor.
【０００７】[0007]
【作用】ねじ式ロータの表面に均一なコーティング層が
形成される。A uniform coating layer is formed on the surface of the screw type rotor.
【０００８】[0008]
【実施例】以下に本発明の実施例を添付図面に基づいて
説明する。図１は本発明に係るねじ式ロータの樹脂コー
ティング方法を実施するための樹脂コーティング装置の
縦断面図、図２は図１の要部拡大図、図３は請求項１の
樹脂注入口の位置を示す歯部の平面図、図４は請求項２
の樹脂注入口の位置を示す歯部の平面図、図５はランナ
を設けた樹脂コーティング装置の要部断面拡大図、図６
はランナを設けた場合の樹脂注入口の位置を示す歯部の
平面図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a vertical cross-sectional view of a resin coating apparatus for carrying out a resin coating method for a screw rotor according to the present invention, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG. 3 is a position of a resin injection port of claim 1. 2 is a plan view of a tooth portion showing FIG.
6 is a plan view of the tooth portion showing the position of the resin injection port of FIG. 5, FIG. 5 is an enlarged cross-sectional view of a main portion of the resin coating apparatus provided with a runner, FIG.
FIG. 6 is a plan view of a tooth portion showing the position of a resin injection port when a runner is provided.
【０００９】ねじ式ロータ１は、回転中心にシャフト２
を有し、外周にねじれた５個の歯部３を形成して成る。The screw type rotor 1 has a shaft 2 at the center of rotation.
And has five twisted tooth portions 3 formed on the outer circumference.
【００１０】ねじ式ロータ１の樹脂コーティング方法を
実施するための樹脂コーティング装置は、ねじ式ロータ
１をねじ込んでねじ式ロータ１の表面に樹脂コーティン
グ層５を成形すべくねじ式ロータ１の表面との間に所定
の空隙６を形成する型７と、ねじ式ロータ１を位置決め
すると共にねじ式ロータ１の表面と型７との間に所定の
空隙６を形成しつつ型７を支持する治具８とから構成さ
れている。The resin coating apparatus for carrying out the resin coating method for the screw type rotor 1 is designed to screw the screw type rotor 1 and form a resin coating layer 5 on the surface of the screw type rotor 1. A jig for forming a predetermined space 6 between the mold 7 and a jig for positioning the screw rotor 1 and supporting the mold 7 while forming the predetermined space 6 between the surface of the screw rotor 1 and the mold 7. 8 and.
【００１１】型７は、耐熱性ゴムで一体に形成されてい
る。また、治具８は型７の外周面を覆うようにして支持
するスリーブ９と、型７の上面に当接するアッパプレー
ト１０と、型７の下面に当接するロアプレート１１とか
ら成っている。The mold 7 is integrally formed of heat resistant rubber. The jig 8 includes a sleeve 9 that supports the outer peripheral surface of the mold 7 so as to cover the outer peripheral surface, an upper plate 10 that contacts the upper surface of the mold 7, and a lower plate 11 that contacts the lower surface of the mold 7.
【００１２】アッパプレート１０には、治具８に対して
型７を位置決めするための位置決めピン１２を嵌装する
位置決め孔１３と、治具８に対してねじ式ロータ１を位
置決めするためのロータシャフト孔１４と位置決めピン
１５を嵌装する位置決め孔１６が形成されている。The upper plate 10 has a positioning hole 13 into which a positioning pin 12 for positioning the die 7 with respect to the jig 8 is fitted, and a rotor for positioning the screw rotor 1 with respect to the jig 8. A positioning hole 16 into which the shaft hole 14 and the positioning pin 15 are fitted is formed.
【００１３】また、ロアプレート１１には、治具８に対
してねじ式ロータ１を位置決めするためのロータシャフ
ト孔１７と、空隙６内にコーティング材たるエポキシ樹
脂等の高粘度樹脂材１８を注入するための樹脂注入口１
９が形成され、更にねじ式ロータ１が型７内に挿入され
た状態で樹脂注入口１９が歯部３の肉厚センタ３ａの真
下になるように位置決めするための位置決めピン２０が
植設されている。The lower plate 11 is filled with a rotor shaft hole 17 for positioning the screw type rotor 1 with respect to the jig 8 and a high viscosity resin material 18 such as an epoxy resin as a coating material in the space 6. Resin injection port 1 for
9 is formed, and a positioning pin 20 for positioning the resin injection port 19 so as to be directly below the wall thickness center 3a of the tooth portion 3 with the screw rotor 1 inserted in the mold 7 is planted. ing.
【００１４】そして、ねじ式ロータ１を型７に位置決め
セットする場合には、シャフト２をアッパプレート１０
とロアプレート１１のロータシャフト孔１４，１７に嵌
合させ、位置決めピン１２をアッパプレート１０の位置
決め孔１３と型７に形成された位置決め穴２１に嵌装さ
せ、更に位置決めピン１５をアッパプレート１０の位置
決め孔１６と型７に形成された位置決め孔２２とねじ式
ロータ１に形成された位置決め穴２３に嵌装させる。ま
た、位置決めピン２０を型７に形成された位置決め穴２
４に嵌合させる。When the screw type rotor 1 is positioned and set on the mold 7, the shaft 2 is attached to the upper plate 10.
And the lower shaft 11 are fitted in the rotor shaft holes 14 and 17, the positioning pin 12 is fitted in the positioning hole 13 of the upper plate 10 and the positioning hole 21 formed in the mold 7, and the positioning pin 15 is further fitted. The positioning holes 16 and the positioning holes 22 formed in the mold 7 and the positioning holes 23 formed in the screw type rotor 1 are fitted. In addition, the positioning pin 20 has a positioning hole 2 formed in the mold 7.
Fit in 4.
【００１５】すると、ねじ式ロータ１の表面と型７との
間に所定の空隙６が形成されると共に、樹脂注入口１９
が歯部３の肉厚センタ３ａの真下になるように位置決め
される。Then, a predetermined space 6 is formed between the surface of the screw type rotor 1 and the mold 7, and the resin injection port 19 is formed.
Is positioned just below the thickness center 3a of the tooth portion 3.
【００１６】樹脂注入口１９は、図３に示すようにある
１個の歯部３の肉厚センタ３ａの真下になるようにロア
プレート１１に１個形成してもよく、また図４に示すよ
うに全ての歯部３の肉厚センタ３ａの真下になるように
歯部３と同数ロアプレート１１に形成してもよい。One resin injection port 19 may be formed in the lower plate 11 so as to be directly below the wall thickness center 3a of one tooth portion 3 as shown in FIG. 3, and as shown in FIG. As described above, the lower plates 11 may be formed in the same number as the tooth portions 3 so as to be directly below the thickness centers 3a of all the tooth portions 3.
【００１７】以上のような構成において、樹脂注入口１
９から樹脂１８を空隙６内に注入すると、歯部３の肉厚
センタ３ａに当たってから歯部３の両外周面３ｂ，３ｃ
に均等に樹脂１８が流れ、エアの巻き込みが発生せず凹
みや空洞が生じない樹脂コーティング層５がねじ式ロー
タ１の表面に成形される。In the above structure, the resin injection port 1
When the resin 18 is injected into the space 6 from 9 and hits the thickness center 3a of the tooth part 3, both outer peripheral surfaces 3b and 3c of the tooth part 3 are hit.
A resin coating layer 5 is formed on the surface of the screw type rotor 1 in which the resin 18 flows evenly, and air entrapment does not occur and dents and cavities do not occur.
【００１８】図５と図６は、ねじ式ロータ１の下面とロ
アプレート１１の間に、ロータ１の外径とほぼ等しく、
円盤状のランナ３２を形成した場合を示すものである。FIG. 5 and FIG. 6 show that between the lower surface of the screw type rotor 1 and the lower plate 11, the outer diameter of the rotor 1 is substantially equal to
This shows a case where a disk-shaped runner 32 is formed.
【００１９】ロアプレート１１と歯部３との間に形成さ
れるランナ３２に樹脂注入口１９から注入された樹脂１
８が、十分に満たされた後にランナ３２の外周面を介し
て空隙６内に注入されるので、各歯部３の外周面３ｂ，
３ｃに均等に流れる。The resin 1 injected from the resin injection port 19 into the runner 32 formed between the lower plate 11 and the tooth portion 3.
8 is injected into the space 6 through the outer peripheral surface of the runner 32 after being sufficiently filled, the outer peripheral surface 3b of each tooth portion 3,
Flow evenly to 3c.
【００２０】[0020]
【発明の効果】以上説明したように本発明によれば、コ
ーティング表面及び内側に気泡が侵入することなく、凹
みや空洞が生じないコーティング層をねじ式ロータの表
面に成形することが出来る。また、コーティング層の凹
みや空洞による手直し作業の低減が図れる。As described above, according to the present invention, it is possible to form a coating layer on the surface of a screw type rotor in which air bubbles do not enter the coating surface and the inside thereof, and which does not cause depressions or cavities. Further, it is possible to reduce the repair work due to the dents and cavities of the coating layer.
【図１】本発明に係るねじ式ロータの樹脂コーティング
方法を実施するための樹脂コーティング装置の縦断面図FIG. 1 is a vertical sectional view of a resin coating apparatus for carrying out a resin coating method for a screw rotor according to the present invention.
【図２】図１の要部拡大図FIG. 2 is an enlarged view of a main part of FIG.
【図３】請求項１の樹脂注入口の位置を示す歯部の平面
図FIG. 3 is a plan view of the tooth portion showing the position of the resin injection port according to claim 1;
【図４】請求項２の樹脂注入口の位置を示す歯部の平面
図FIG. 4 is a plan view of the tooth portion showing the position of the resin injection port according to claim 2;
【図５】ランナを設けた樹脂コーティング装置の要部断
面拡大図FIG. 5 is an enlarged cross-sectional view of a main part of a resin coating device provided with a runner.
【図６】ランナを設けた場合の樹脂注入口の位置を示す
歯部の平面図FIG. 6 is a plan view of a tooth portion showing a position of a resin injection port when a runner is provided.
【図７】従来技術の樹脂注入口の位置を示す歯部の平面
図FIG. 7 is a plan view of a tooth portion showing a position of a resin injection port of a conventional technique.
【図８】従来技術における樹脂の流れを示す説明図FIG. 8 is an explanatory view showing the flow of resin in the prior art.
１…ねじ式ロータ、２…シャフト、３…歯部、３ａ…歯
部の肉厚センタ、５…樹脂コーティング層、６…空隙、
７…型、８…治具、１８…樹脂、１９…樹脂注入口。DESCRIPTION OF SYMBOLS 1 ... Screw type rotor, 2 ... Shaft, 3 ... Tooth portion, 3a ... Center of thickness of tooth portion, 5 ... Resin coating layer, 6 ... Void,
7 ... Mold, 8 ... Jig, 18 ... Resin, 19 ... Resin injection port.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中野 悟 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Satoru Nakano 1-10-1 Shin-Sayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd.
Claims (2)
部を有して成るねじ式ロータの樹脂コーティング方法に
おいて、治具に支持された型に前記ねじ式ロータをセッ
トした状態で前記歯部の肉厚センタの真下になるように
設けた樹脂注入口から前記型内に樹脂を注入して前記ね
じ式ロータの表面を樹脂でコーティングすることを特徴
とするねじ式ロータの樹脂コーティング方法。1. A resin coating method for a screw type rotor having a shaft in the center and a plurality of teeth on the outer periphery, wherein the screw type rotor is set in a mold supported by a jig. A resin coating method for a screw type rotor, characterized in that resin is injected into the mold from a resin injection port provided directly below the center of the tooth thickness to coat the surface of the screw type rotor with the resin. .
歯部毎に設けた請求項１記載のねじ式ロータの樹脂コー
ティング方法。2. The resin coating method for a screw type rotor according to claim 1, wherein the resin injection port is provided for each tooth portion of the screw type rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4350798A JPH06170862A (en) | 1992-12-04 | 1992-12-04 | Method for coating screw rotor with resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4350798A JPH06170862A (en) | 1992-12-04 | 1992-12-04 | Method for coating screw rotor with resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06170862A true JPH06170862A (en) | 1994-06-21 |
Family
ID=18412945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4350798A Withdrawn JPH06170862A (en) | 1992-12-04 | 1992-12-04 | Method for coating screw rotor with resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06170862A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6849220B1 (en) * | 1999-10-18 | 2005-02-01 | Sevenska Rotor Maskiner Ab | Method for producing polymer rotors |
| KR101294370B1 (en) * | 2012-06-27 | 2013-08-08 | 주식회사 평일 | Composite one body type line post inssulator and manufactureing method of the smae |
| WO2016004179A1 (en) * | 2014-07-03 | 2016-01-07 | Eaton Corporation | Twin rotor devices with internal clearances reduced by a coating after assembly, a coating system, and methods |
-
1992
- 1992-12-04 JP JP4350798A patent/JPH06170862A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6849220B1 (en) * | 1999-10-18 | 2005-02-01 | Sevenska Rotor Maskiner Ab | Method for producing polymer rotors |
| KR101294370B1 (en) * | 2012-06-27 | 2013-08-08 | 주식회사 평일 | Composite one body type line post inssulator and manufactureing method of the smae |
| WO2016004179A1 (en) * | 2014-07-03 | 2016-01-07 | Eaton Corporation | Twin rotor devices with internal clearances reduced by a coating after assembly, a coating system, and methods |
| US10539133B2 (en) | 2014-07-03 | 2020-01-21 | Eaton Intelligent Power Limited | Twin rotor devices with internal clearances reduced by a coating after assembly, a coating system, and methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000307 |