JPH09169421A - Screw feeder - Google Patents

Screw feeder

Info

Publication number
JPH09169421A
JPH09169421A JP33384695A JP33384695A JPH09169421A JP H09169421 A JPH09169421 A JP H09169421A JP 33384695 A JP33384695 A JP 33384695A JP 33384695 A JP33384695 A JP 33384695A JP H09169421 A JPH09169421 A JP H09169421A
Authority
JP
Japan
Prior art keywords
screw
casing
seal
screw feeder
divided
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
Application number
JP33384695A
Other languages
Japanese (ja)
Inventor
Kunihiro Katsurayama
邦弘 葛山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP33384695A priority Critical patent/JPH09169421A/en
Publication of JPH09169421A publication Critical patent/JPH09169421A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Screw Conveyors (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a screw feeder, which is hard to be contaminated with the residual material of a former operation and in which cleaning at the time of changeover of variety is facilitated. SOLUTION: A base end of a shaft 3 of a screw 2 is provided with a ground packing 7 for sealing a bearing 6, and while a casing 1 is divided in the axial direction of a screw 2. Furthermore, a base end 3a of the shaft 3 has a seal 4 made of resin, which can be divided in the axial direction, and each presser plate part body 5a of a presser plate 5, which presses the seal 4 and which is divided in the axial direction in response to each casing part body 1a to be divided, is fitted to an inner wall 11 of each casing part body 1a. With this structure, in a screw feeder, intrusion of grains such as the forming material into the bearing 6 and the ground packing 7 side is prevented by the seal 4, while at the time of changeover of variety, the seal 4 can be easily removed.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明はスクリューの回転駆
動により粉粒体を搬送するスクリューフィーダーに関す
るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw feeder for conveying powder particles by rotating a screw.

【0002】[0002]

【従来の技術】投入した粉粒体をスクリューの回転駆動
により他方に移動させ、送り込むものとしてスクリュー
フィーダーが用いられている。例えば、合成樹脂等の成
形材料を混練器等に搬送する手段として用いられてい
る。
2. Description of the Related Art A screw feeder is used as a means for moving a fed powder or granular material to the other by rotationally driving a screw and feeding it. For example, it is used as a means for conveying a molding material such as synthetic resin to a kneader or the like.

【0003】[0003]

【発明が解決しようとする課題】上記成形材料のような
場合、多様の品種の搬送に用いると、先に搬送した成形
材料の残存物が混入し、品質不良を発生する恐れがあ
る。なかでも、異なる色彩の成形材料を搬送する際は、
前の残存物が混入すると色調不良となる。そのため、品
種切替えの際は清掃を行うことになるが、スクリューの
軸受けはグランドパッキンで密封されているが、このグ
ランドパッキン内に混入したりし、品種切替えに多大の
時間を要している。
In the case of the above-mentioned molding material, when it is used for transporting various kinds of products, there is a possibility that the residual material of the molding material previously transported may be mixed to cause quality defects. Above all, when conveying molding materials of different colors,
When the previous residue is mixed, the color tone becomes poor. For this reason, cleaning is performed at the time of product type switching, but the bearing of the screw is sealed by the gland packing, but it may be mixed in the gland packing, and it takes a lot of time to switch the product type.

【0004】本発明は上述の事実に鑑みてなされたもの
で、前の残存物が混入しにくく、品種切替えの清掃が容
易なスクリューフィーダーを提供することにより、残存
物の混入による品質不良を防止することを目的とする。
The present invention has been made in view of the above facts, and prevents a defective product due to mixing of a residual substance by providing a screw feeder in which a previous residual substance is less likely to be mixed and which is easy to clean when switching types. The purpose is to do.

【0005】[0005]

【課題を解決するための手段】本発明の請求項1に係る
スクリューフィーダーは、外周面12の一方に材料投入
口8と、他方に排出口9とを有するケーシング1、及
び、このケーシング1内にスクリュー2を備え、スクリ
ュー2の回転駆動により粉粒体を搬送するスクリューフ
ィーダーであって、上記スクリュー2の軸3の基端に、
軸受け6を密封するグランドパッキン7を備えると共
に、上記ケーシング1は上記スクリュー2の軸方向に分
割され、さらに、上記軸3の基端部3aに、軸方向に分
割可能な樹脂製のシール4を有し、及び、このシール4
を押さえ、上記分割される各ケーシング部体1aに対応
して軸方向に分割される押さえ板5の各押さえ板部体5
aが各ケーシング部体1aの内壁11に取着しているこ
とを特徴とする。
A screw feeder according to claim 1 of the present invention is a casing 1 having a material inlet 8 on one side of an outer peripheral surface 12 and an outlet 9 on the other side, and the inside of the casing 1. A screw feeder that is provided with a screw 2 and conveys powder particles by the rotational driving of the screw 2, at the base end of the shaft 3 of the screw 2.
The casing 1 is provided with a gland packing 7 for hermetically sealing the bearing 6, the casing 1 is divided in the axial direction of the screw 2, and the base end portion 3a of the shaft 3 is further provided with an axially separable resin seal 4. Have and this seal 4
Each pressing plate part body 5 of the pressing plate 5 divided in the axial direction corresponding to each of the divided casing part bodies 1a.
a is attached to the inner wall 11 of each casing body 1a.

【0006】本発明の請求項2に係るスクリューフィー
ダーは、請求項1記載のスクリューフィーダーにおい
て、上記押さえ板5によりケーシング1内が基端部側1
3とスクリュー羽根側14に仕切られると共に、この基
端部側13が加圧される機構を備えていることを特徴と
する。
A screw feeder according to a second aspect of the present invention is the screw feeder according to the first aspect, wherein the inside of the casing 1 is the base end side 1 by the pressing plate 5.
3 and a screw blade side 14 and a mechanism for pressurizing the base end side 13 is provided.

【0007】[0007]

【発明の実施の形態】本発明を図面に基づいて説明す
る。図1(a)は本発明の一実施例に係るスクリューフ
ィーダーの概略図であり、(b)はその要部を拡大して
示した説明図であり、図2は本発明の一実施例に用いら
れる樹脂製のシール及び押さえ板の斜視図である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. FIG. 1A is a schematic view of a screw feeder according to an embodiment of the present invention, FIG. 1B is an explanatory view showing an enlarged main part of the screw feeder, and FIG. 2 shows an embodiment of the present invention. It is a perspective view of a resin seal and a press plate used.

【0008】本発明のスクリューフィーダーは、図1
(a)に示す如く、ケーシング1内にスクリュー2を備
え、このケーシング1の外周面12の一方に材料投入口
8と、他方に排出口9とを有し、上記スクリュー2の回
転駆動により、合成樹脂の成形材料等の粉粒体を搬送す
るものである。なお、上記ケーシング1は両端部にフラ
ンジ17を有し、このフランジ17間でケーシング1
は、スクリュー2の軸方向に分割され、内部を開口し、
清掃等ができる構造となっている。
The screw feeder of the present invention is shown in FIG.
As shown in (a), the casing 1 is provided with a screw 2, the outer peripheral surface 12 of the casing 1 has a material inlet 8 on one side, and a discharge port 9 on the other side. It is intended to convey powder particles such as synthetic resin molding materials. The casing 1 has flanges 17 at both ends, and the casing 1 is provided between the flanges 17.
Is divided in the axial direction of the screw 2 to open the inside,
It has a structure that can be cleaned.

【0009】上記スクリューフィーダーは、図1(b)
に示す如く、スクリュー2の軸3の基端に、軸受け6を
密封するグランドパッキン7を備える。上記グランドパ
ッキン7の材料としては、フッ素樹脂等の樹脂が適して
いる。
The screw feeder is shown in FIG. 1 (b).
As shown in FIG. 3, a gland packing 7 for sealing the bearing 6 is provided at the base end of the shaft 3 of the screw 2. As a material for the gland packing 7, a resin such as a fluororesin is suitable.

【0010】本発明のスクリューフィーダーは、図1
(b)及び図2に示す如く、上記スクリュー2の軸3の
基端部3aにフッ素樹脂等からなる樹脂製のシール4を
有し、軸3の円周囲を覆っている。上記シール4は軸方
向に、例えば、2分割できる半円筒形の構造となってい
る。上記シール4の外周を覆って金属製の枠15が備え
られ、上記枠15もシール4と同様に軸方向に分割でき
る構造となっている。上記枠15を備えると、シール4
が樹脂等の場合に補強する機能を有するので好ましい。
さらに、上記シール4を覆った枠15の外面を押さえる
押さえ板5を有する。上記押さえ板5は軸方向に分割で
き、分割される各ケーシング部体1aに対応して各押さ
え板部体5aに分割できる構造となっている。上記各押
さえ板部体5aは上記分割される各ケーシング部体1a
の内壁11に取着している。
The screw feeder of the present invention is shown in FIG.
As shown in (b) and FIG. 2, a resin-made seal 4 made of fluororesin or the like is provided at the base end portion 3a of the shaft 3 of the screw 2 to cover the circumference of the shaft 3 circle. The seal 4 has, for example, a semi-cylindrical structure that can be divided into two in the axial direction. A metal frame 15 is provided so as to cover the outer periphery of the seal 4, and the frame 15 has a structure that can be divided in the axial direction similarly to the seal 4. When the frame 15 is provided, the seal 4
Is preferable because it has a function of reinforcing when it is a resin or the like.
Further, a pressing plate 5 for pressing the outer surface of the frame 15 covering the seal 4 is provided. The pressing plate 5 can be divided in the axial direction and can be divided into the pressing plate portions 5a corresponding to the divided casing portions 1a. Each of the pressing plate parts 5a is divided into each of the casing parts 1a.
It is attached to the inner wall 11 of the.

【0011】上記構成により、上記スクリューフィーダ
ーはシール4により成形材料等の粉粒体が軸受け6やグ
ランドパッキン7側に進入するのを防ぐと共に、上記ス
クリューフィーダーは品種切替え、例えば、異なる色彩
の成形材料に切替える際、ケーシング1の内部を開口
し、上記シール4等が分割されるので、シール4、及
び、枠15を取り外し、軸3等の清掃が容易にできる。
その結果、前の残存物が混入し、品質不良を発生するこ
とがない。
With the above structure, the screw feeder prevents the powder or granular material such as the molding material from entering the bearing 6 or the gland packing 7 side by the seal 4, and the screw feeder switches the type, for example, molding of different colors. When switching to a material, the inside of the casing 1 is opened and the seal 4 and the like are divided, so that the seal 4 and the frame 15 can be removed and the shaft 3 and the like can be easily cleaned.
As a result, the previous remnants are not mixed and the quality defect does not occur.

【0012】さらに、上記スクリューフィーダーは、図
1(b)に示す如く、上記押さえ板5によりケーシング
1内が基端部側13とスクリュー羽根側14に仕切ると
共に、上記基端部側13のケーシング1に壁を貫通する
通気孔16を有する。この通気孔16からエアーが挿入
され、上記基端部側13を加圧する。上記エアー圧とし
ては0.1〜0.2kg/cm2 程度が適している。上
記基端部側13が加圧されていると、上記シール4と軸
3の隙間から粉粒体が進入することを防ぐことができ
る。その結果、前の残存物の混入量が少なくなるので、
品質不良を発生することがない。
Further, in the screw feeder, as shown in FIG. 1B, the inside of the casing 1 is partitioned by the pressing plate 5 into a base end side 13 and a screw blade side 14, and the base end side 13 casing. 1 has a vent hole 16 penetrating the wall. Air is inserted from the vent hole 16 to pressurize the base end side 13. A suitable air pressure is about 0.1 to 0.2 kg / cm 2 . When the base end side 13 is pressurized, it is possible to prevent the powder or granular material from entering through the gap between the seal 4 and the shaft 3. As a result, the amount of the previous residue mixed in is reduced,
No quality defects will occur.

【0013】[0013]

【発明の効果】本発明の請求項1に係るスクリューフィ
ーダーは、上記構成により、上記スクリューフィーダー
はシール4により成形材料等の粉粒体が軸受け6やグラ
ンドパッキン7側に進入するのを防ぐと共に、品種切替
える際、シール4を取り外し、軸3等の清掃が容易にで
きる。その結果、前の残存物が混入し、品質不良を発生
することがない。
According to the first aspect of the present invention, the screw feeder has the above-described structure, and the screw feeder prevents the powder particles such as the molding material from entering the bearing 6 and the gland packing 7 side by the seal 4. When changing the type, the seal 4 can be removed and the shaft 3 and the like can be easily cleaned. As a result, the previous remnants are not mixed and the quality defect does not occur.

【0014】本発明の請求項2に係るスクリューフィー
ダーは、上記構成により、シール4と軸3の隙間から粉
粒体が進入することを防ぐことができる。その結果、前
の残存物の混入量が少なくなるので、品質不良を発生す
ることがない。
With the above construction, the screw feeder according to the second aspect of the present invention can prevent the granular material from entering through the gap between the seal 4 and the shaft 3. As a result, the amount of the residual substance mixed in before is reduced, so that quality defects do not occur.

【図面の簡単な説明】[Brief description of the drawings]

【図1】(a)は本発明の一実施例に係るスクリューフ
ィーダーの概略図であり、(b)はその要部を拡大して
示した説明図である。
FIG. 1 (a) is a schematic view of a screw feeder according to an embodiment of the present invention, and FIG. 1 (b) is an explanatory view showing an enlarged main part thereof.

【図2】本発明の一実施例に用いられる樹脂製のシール
及び押さえ板の斜視図である。
FIG. 2 is a perspective view of a resin seal and a pressure plate used in an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 ケーシング 1a ケーシング部体 2 スクリュー 3 軸 3a 基端部 4 シール 5 押さえ板 5a 押さえ板部体 6 軸受け 7 グランドパッキン 8 材料投入口 9 排出口 11 内壁 12 外周面 15 枠 16 通気孔 1 Casing 1a Casing part body 2 Screw 3 Shaft 3a Base end part 4 Seal 5 Presser plate 5a Presser plate part body 6 Bearing 7 Gland packing 8 Material input port 9 Discharge port 11 Inner wall 12 Outer peripheral surface 15 Frame 16 Vent hole

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 外周面(12)の一方に材料投入口
(8)と、他方に排出口(9)とを有するケーシング
(1)、及び、このケーシング(1)内にスクリュー
(2)を備え、スクリュー(2)の回転駆動により粉粒
体を搬送するスクリューフィーダーであって、上記スク
リュー(2)の軸(3)の基端に、軸受け(6)を密封
するグランドパッキン(7)を備えると共に、上記ケー
シング(1)は上記スクリュー(2)の軸方向に分割さ
れ、さらに、上記軸(3)の基端部(3a)に、軸方向
に分割可能な樹脂製のシール(4)を有し、及び、この
シール(4)を押さえ、上記分割される各ケーシング部
体(1a)に対応して軸方向に分割される押さえ板
(5)の各押さえ板部体(5a)が各ケーシング部体
(1a)の内壁(11)に取着していることを特徴とす
るスクリューフィーダー。
1. A casing (1) having a material input port (8) on one side of an outer peripheral surface (12) and a discharge port (9) on the other side, and a screw (2) in the casing (1). A screw feeder for transporting powder particles by rotating the screw (2), wherein a gland packing (7) for sealing the bearing (6) is provided at the base end of the shaft (3) of the screw (2). In addition, the casing (1) is divided in the axial direction of the screw (2), and the base end portion (3a) of the shaft (3) is further made of an axially separable resin seal (4). And pressing the seal (4), each pressing plate body (5a) of the pressing plate (5) that is axially divided corresponding to each of the divided casing parts (1a) is Attach to the inner wall (11) of each casing body (1a) A screw feeder characterized by the fact that
【請求項2】 上記押さえ板(5)によりケーシング
(1)内が基端部側(13)とスクリュー羽根側(1
4)に仕切られると共に、この基端部側(13)が加圧
される機構を備えていることを特徴とする請求項1記載
のスクリューフィーダー。
2. The inside of the casing (1) is formed by the pressing plate (5) on the base end side (13) and the screw blade side (1).
The screw feeder according to claim 1, wherein the screw feeder is provided with a mechanism which is partitioned into 4) and whose base end side (13) is pressurized.
JP33384695A 1995-12-22 1995-12-22 Screw feeder Pending JPH09169421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33384695A JPH09169421A (en) 1995-12-22 1995-12-22 Screw feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33384695A JPH09169421A (en) 1995-12-22 1995-12-22 Screw feeder

Publications (1)

Publication Number Publication Date
JPH09169421A true JPH09169421A (en) 1997-06-30

Family

ID=18270606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33384695A Pending JPH09169421A (en) 1995-12-22 1995-12-22 Screw feeder

Country Status (1)

Country Link
JP (1) JPH09169421A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008133071A (en) * 2006-11-27 2008-06-12 Matsushita Electric Works Ltd Screw feeder
CN104386432A (en) * 2014-10-15 2015-03-04 有研粉末新材料(北京)有限公司 Bearing protection device of spiral lifting machine
CN109466898A (en) * 2018-09-25 2019-03-15 重庆兴渝新材料研究院有限公司 A kind of powder testing machine outer cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008133071A (en) * 2006-11-27 2008-06-12 Matsushita Electric Works Ltd Screw feeder
CN104386432A (en) * 2014-10-15 2015-03-04 有研粉末新材料(北京)有限公司 Bearing protection device of spiral lifting machine
CN109466898A (en) * 2018-09-25 2019-03-15 重庆兴渝新材料研究院有限公司 A kind of powder testing machine outer cylinder

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