JP6066183B2 - スクリュー軸の支持部構造 - Google Patents
スクリュー軸の支持部構造 Download PDFInfo
- Publication number
- JP6066183B2 JP6066183B2 JP2013010438A JP2013010438A JP6066183B2 JP 6066183 B2 JP6066183 B2 JP 6066183B2 JP 2013010438 A JP2013010438 A JP 2013010438A JP 2013010438 A JP2013010438 A JP 2013010438A JP 6066183 B2 JP6066183 B2 JP 6066183B2
- Authority
- JP
- Japan
- Prior art keywords
- insertion portion
- screw shaft
- shaft
- screw
- shaft insertion
- 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.)
- Active
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Classifications
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- 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
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/484—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with two shafts provided with screws, e.g. one screw being shorter than the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—Screws
-
- 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
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
- B29C48/525—Conical screws
-
- 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
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
- B29C48/2522—Shaft or screw supports, e.g. bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
この2軸押出機は、例えば、図3に示すように、対向して配設した2本のスクリュー羽根2を備えたスクリュー軸1のうち、一方のスクリュー軸1の基端側に駆動装置としての減速機付きのモータMを取り付け、スクリュー軸1の各々にコニカルギヤ11を設けることにより、モータMにて一方のスクリュー軸1を回転駆動させることによって、一対のコニカルギヤ11の噛み合い係合により他方のスクリュー軸1を連動して回転するようにしている。
そして、ギヤボックス4からケーシング3へ潤滑油が浸入するのを防止するために適宜のシール機構(図示省略)が設けられるが、シール機構に何らかの不具合があった場合には、ギヤボックス4内の潤滑油が、ギヤボックス4とケーシング3とを区画する隔壁4aに設けられたスクリュー軸1の軸挿通部6を通ってケーシング3内に浸入し、原材料に混入するという問題があった。
一方、ケーシング3内の原材料は、スクリュー羽根2に噛み込まれてケーシング出口3aから押し出されるが、このとき、ケーシング3内の原材料の内圧が高まることによって、スクリュー軸1の軸挿通部6、さらには、軸受5に侵入し、シール機構を破損させる等の問題があった。
また、軸受に侵入しようとする原材料が排出孔から機外に排出されるため、軸挿通部に配設したシール機構を構成するシール部材は、軸挿通部に侵入した原材料の圧力を受けることがなく、シール部材によるシール状態を安定して維持することができる。
ここで、ケーシング3内からスクリュー軸1と軸挿通部6との隙間に侵入した原材料は、この隙間でスクリュー軸1の外周面と軸挿通部6の内周面とに摺接し、揉まれて紙縒になって排出孔7から機外に排出される。
これにより、潤滑油や原材料の排出を確実、かつ円滑に行うことができる。
11 コニカルギヤ
2 スクリュー羽根
3 ケーシング
4 ギヤボックス
4a 隔壁
5 軸受
6 軸挿通部
7 排出孔
8 シール部材
M モータ
Claims (1)
- ギヤボックス内と原材料が導入されるケーシング内とを区画する隔壁に設けられた軸挿通部を貫通するスクリュー軸の支持部構造において、前記隔壁に、軸挿通部と機外とを連通する排出孔を、軸挿通部の下部の内周面に周方向を長手方向としたスリット状にスクリュー軸に面して開口するように形成したことを特徴とするスクリュー軸の支持部構造。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013010438A JP6066183B2 (ja) | 2013-01-23 | 2013-01-23 | スクリュー軸の支持部構造 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013010438A JP6066183B2 (ja) | 2013-01-23 | 2013-01-23 | スクリュー軸の支持部構造 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2014141011A JP2014141011A (ja) | 2014-08-07 |
| JP6066183B2 true JP6066183B2 (ja) | 2017-01-25 |
Family
ID=51422766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013010438A Active JP6066183B2 (ja) | 2013-01-23 | 2013-01-23 | スクリュー軸の支持部構造 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6066183B2 (ja) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5251176Y2 (ja) * | 1973-10-15 | 1977-11-19 | ||
| JPS5513072U (ja) * | 1978-07-14 | 1980-01-28 | ||
| JP5027717B2 (ja) * | 2008-04-08 | 2012-09-19 | 株式会社モリヤマ | 2軸押出機 |
-
2013
- 2013-01-23 JP JP2013010438A patent/JP6066183B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014141011A (ja) | 2014-08-07 |
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