JPS61175428U - - Google Patents
Info
- Publication number
- JPS61175428U JPS61175428U JP1985060051U JP6005185U JPS61175428U JP S61175428 U JPS61175428 U JP S61175428U JP 1985060051 U JP1985060051 U JP 1985060051U JP 6005185 U JP6005185 U JP 6005185U JP S61175428 U JPS61175428 U JP S61175428U
- Authority
- JP
- Japan
- Prior art keywords
- screw
- resin molding
- flight
- back surface
- molding according
- 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
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 8
- 239000011347 resin Substances 0.000 claims 8
- 229920005989 resin Polymers 0.000 claims 8
- 238000001746 injection moulding Methods 0.000 claims 1
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
- B29C48/60—Thread tops
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
第１図は、本考案のスクリユを配設した押出成
形機の一例を示す要部縦断面図、第２図は第１図
に示すスクリユのＡ―Ａ視拡大断面図、第３図〜
第８図は本考案のスクリユの他の例を示す断面図
、第９図は従来のスクリユにおけるフライト形状
を示す断面図である。
１…スクリユ、２…フライト、３…加熱筒、４
…加熱筒内面に最も近いフライト面。
FIG. 1 is a longitudinal cross-sectional view of essential parts showing an example of an extrusion molding machine equipped with the screw of the present invention, FIG. 2 is an enlarged cross-sectional view taken along line AA of the screw shown in FIG. 1, and FIGS.
FIG. 8 is a sectional view showing another example of the screw of the present invention, and FIG. 9 is a sectional view showing the flight shape of a conventional screw. 1 ...screw, 2...flight, 3...heating tube, 4
...The flight surface closest to the inner surface of the heating cylinder.
Claims (1)
スクリユであつて、該スクリユにおける加熱筒内
面に最も近いフライト面の巾を、上記スクリユの
外径の１／３００以上１／２０未満としたことを
特徴とする樹脂成形用スクリユ。 ２ 加熱筒内面に最も近いフライト面の巾がスク
リユ溝底部のフライト巾よりも小さいことを特徴
とする実用新案登録請求の範囲第１項記載の樹脂
成形用スクリユ。 ３ スクリユフライトの背面がスクリユ溝底部に
向つて傾斜していることを特徴とする実用新案登
録請求の範囲第１項または第２項記載の樹脂成形
用スクリユ。 ４ スクリユフライトの背面とスクリユ中心軸の
なす角度が１０°以上８０°以下であることを特
徴とする実用新案登録請求の範囲第３項記載の樹
脂成形用スクリユ。 ５ スクリユフライトの背面が階段状に傾斜して
いることを特徴とする実用新案登録請求の範囲第
１項、第２項、第３項または第４項記載の樹脂成
形用スクリユ。 ６ スクリユフライトの背面が直線状に傾斜して
いることを特徴とする実用新案登録請求の範囲第
１項、第２項、第３項または第４項記載の樹脂成
形用スクリユ。 ７ スクリユフライトの背面が湾曲、楕円または
それらの組み合わせ、または直線と湾曲、楕円ま
たはそれらの組み合わせからなるものであること
を特徴とする実用新案登録請求の範囲第１項、第
２項または第３項記載の樹脂成形用スクリユ。[Scope of Claim for Utility Model Registration] 1. A screw for resin molding of an extrusion molding machine or an injection molding machine, where the width of the flight surface closest to the inner surface of the heating cylinder of the screw is 1/300 of the outer diameter of the screw. A screw for resin molding, characterized in that the ratio is less than 1/20. 2. The screw for resin molding according to claim 1, wherein the width of the flight surface closest to the inner surface of the heating cylinder is smaller than the flight width at the bottom of the screw groove. 3. The screw for resin molding according to claim 1 or 2, wherein the back surface of the screw flight is inclined toward the bottom of the screw groove. 4. The screw for resin molding according to claim 3, wherein the angle between the back surface of the screw flight and the central axis of the screw is 10° or more and 80° or less. 5. The screw for resin molding according to claim 1, 2, 3, or 4 of the utility model registration claim, characterized in that the back surface of the screw flight is inclined in a step-like manner. 6. A screw for resin molding according to claim 1, 2, 3, or 4 of the utility model registration, characterized in that the back surface of the screw flight is linearly inclined. 7. Utility model registration claims 1, 2, or 7, characterized in that the back surface of the screw light is curved, elliptical, or a combination thereof, or made of a straight line, a curve, an ellipse, or a combination thereof. The screw for resin molding according to item 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985060051U JPS61175428U (en) | 1985-04-22 | 1985-04-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985060051U JPS61175428U (en) | 1985-04-22 | 1985-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61175428U true JPS61175428U (en) | 1986-11-01 |
Family
ID=30587043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985060051U Pending JPS61175428U (en) | 1985-04-22 | 1985-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61175428U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4977258B1 (en) * | 2011-08-10 | 2012-07-18 | 株式会社日本製鋼所 | Screw for injection molding machine |
| WO2013129608A1 (en) * | 2012-03-01 | 2013-09-06 | 株式会社日本製鋼所 | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| EP3000582A3 (en) * | 2014-09-29 | 2016-04-13 | Battenfeld-Cincinnati Austria GmbH | Extruder screw |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5231324U (en) * | 1975-08-26 | 1977-03-04 | ||
| JPS5337027U (en) * | 1976-09-07 | 1978-04-01 |
-
1985
- 1985-04-22 JP JP1985060051U patent/JPS61175428U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5231324U (en) * | 1975-08-26 | 1977-03-04 | ||
| JPS5337027U (en) * | 1976-09-07 | 1978-04-01 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4977258B1 (en) * | 2011-08-10 | 2012-07-18 | 株式会社日本製鋼所 | Screw for injection molding machine |
| WO2013129608A1 (en) * | 2012-03-01 | 2013-09-06 | 株式会社日本製鋼所 | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| JP2013180483A (en) * | 2012-03-01 | 2013-09-12 | Japan Steel Works Ltd:The | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| US9498899B2 (en) | 2012-03-01 | 2016-11-22 | The Japan Steel Works, Ltd. | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| EP3000582A3 (en) * | 2014-09-29 | 2016-04-13 | Battenfeld-Cincinnati Austria GmbH | Extruder screw |