JPH0420019Y2

JPH0420019Y2 -

Info

Publication number: JPH0420019Y2
Application number: JP16335285U
Authority: JP
Priority date: 1985-10-24
Filing date: 1985-10-24
Publication date: 1992-05-07
Also published as: JPS6270910U

Description

【考案の詳細な説明】〈考案の属する技術分野〉本考案はプラスチツクシート等のキヤステイン
グ用ロールに係り、特に媒体を軸心から外筒へ放
射状へ導く種類のキヤステイングロールに関す
る。[Detailed description of the invention] <Technical field to which the invention pertains> The present invention relates to a casting roll for plastic sheets and the like, and particularly to a type of casting roll that guides a medium radially from an axis to an outer cylinder.

〈従来技術とその欠点〉従来装置は第３図および第４図に示すように、
軸心部管１から放射状に設けた分岐管２ａ，２
ｂ，２ｃ……を経て、媒体が矢印Ｃのように移動
し、外筒３と内筒４の間に設けた流路５内に流入
するようになつていた。<Prior art and its drawbacks> As shown in Figs. 3 and 4, the conventional device
Branch pipes 2a, 2 provided radially from the shaft center pipe 1
b, 2c, . . . , the medium moves in the direction of arrow C and flows into a flow path 5 provided between the outer cylinder 3 and the inner cylinder 4.

従つて、媒体が直接に外筒３の内壁面に突当
り、外筒３はＡ部分が急激な温度変化に晒される
ためロール表面（外筒外側面）は温度むらが出
来、ロール上にキヤステイングされたシート等は
均質な製品とならず、製品として劣つたものにな
つた。 Therefore, the medium directly hits the inner wall surface of the outer cylinder 3, and the part A of the outer cylinder 3 is exposed to rapid temperature changes, resulting in temperature unevenness on the roll surface (outer surface of the outer cylinder), which causes casting on the roll. The resulting sheets, etc., were not of uniform quality and were of inferior quality.

〈考案の目的〉本考案は従来装置に見られるような欠点を取除
き、ロールの表面に熱むらが出来ないようなキヤ
ステイングロールを提供することを目的する。<Purpose of the invention> The object of the invention is to eliminate the drawbacks seen in conventional devices and to provide a casting roll that does not cause heat unevenness on the surface of the roll.

〈考案の要点〉前述のような目的を達成するため軸中心から放
射状に延た分岐管を介して媒体をロールの外筒の
内壁面へ導くプラスチツクシート等のキヤステイ
ング用ロールにおいて前記分岐管の先で媒体がロ
ール外筒の内壁面へ到達する前の位置にロール外
筒の内壁面の内側に内筒により形成されるリング
状の流路室を設けるとともに外筒内壁面と内筒外
側面で形成する流路を設け、前記流路室と前記流
路の連絡口を均一な絞り状の口としたことを特徴
とするプラスチツクシート等のキヤステイングロ
ールとした。<Main points of the invention> In order to achieve the above-mentioned purpose, in a casting roll such as a plastic sheet, the medium is guided to the inner wall surface of the outer cylinder of the roll through branch pipes extending radially from the center of the shaft. Before the medium reaches the inner wall surface of the roll outer cylinder, a ring-shaped flow passage chamber formed by the inner cylinder is provided inside the inner wall surface of the roll outer cylinder, and the inner wall surface of the outer cylinder and the outer surface of the inner cylinder are The present invention provides a casting roll made of a plastic sheet or the like, characterized in that a flow path is formed by the flow path, and a communication port between the flow path chamber and the flow path is formed into a uniform constricted opening.

〈実施例〉次に第１図および第２図により本考案の１実施
例を説明すると、１１は軸心部管で媒体が矢印ｄ
のよう放射状に設けた分岐管１２ａ，１２ｂ……
に分れた後、夫々の分岐管１２ａ，１２ｂ……の
先に設けた流路室１３に流れ込むようになつてい
る。<Embodiment> Next, an embodiment of the present invention will be explained with reference to FIGS.
Branch pipes 12a, 12b provided radially like...
After being divided into two, the water flows into a channel chamber 13 provided at the end of each branch pipe 12a, 12b, . . . .

前記流路室１３に流れ込み一旦滞留した媒体は
均一な絞りとなつた出口１４から、前記流路室１
３の外側（ロールの表面側）にある流路１５内に
流れるようになつており、従来装置に見られるよ
うに分岐管の開口部から出た媒体がロール外筒１
６に直接に突当り、その部分を極部的に温度むら
と成すようなことがない。 The medium that has flowed into the flow path chamber 13 and once stagnates is passed through the outlet 14, which is a uniform constriction, into the flow path chamber 1.
The medium flows into the flow path 15 on the outside of the roll outer cylinder 1 (on the surface side of the roll), and as seen in conventional equipment, the medium exiting from the opening of the branch pipe flows into the roll outer cylinder 1.
6, and there is no possibility of localized temperature unevenness in that part.

前記流路はロールの外筒１６の内壁面と同内壁
面のさらに内側に設けた内筒１７の外側面との間
に形成され、媒体が流入することによりロール外
側面を所定の温度にするようにしている。 The flow path is formed between the inner wall surface of the outer cylinder 16 of the roll and the outer surface of the inner cylinder 17 provided further inside the inner wall surface, and when the medium flows in, the outer surface of the roll is brought to a predetermined temperature. That's what I do.

〈作用効果〉以上説明したように構成されているので、当初
に掲げた欠点が取除かれ、温度むらの出来ない、
キヤステイング出来、良品のプラスチツクシート
等が成形可能である。<Effects> Since it is constructed as explained above, the drawbacks listed at the beginning are removed, and temperature unevenness is prevented.
It can be cast and molded into good quality plastic sheets.

[Brief explanation of the drawing]

第１図および第２図は本考案の１実施例を示す
図で第１図はロールの横断面図。第２図はロール
の縦断面図。第３図および第４図は従来のロール
の図で第３図は横断面図。第４図は縦断面図。１１……軸心部管、１２……分岐管、１３……
流路室、１４……出口、１５……流路、１６……
外筒、１７……内筒。 1 and 2 are views showing one embodiment of the present invention, and FIG. 1 is a cross-sectional view of a roll. FIG. 2 is a longitudinal sectional view of the roll. 3 and 4 are views of conventional rolls, and FIG. 3 is a cross-sectional view. Figure 4 is a longitudinal sectional view. 11...Axis tube, 12...Branch tube, 13...
Channel chamber, 14... Outlet, 15... Channel, 16...
Outer cylinder, 17...Inner cylinder.

Claims

[Scope of utility model registration request]

In a casting roll such as a plastic sheet that guides the medium to the inner wall surface of the roll outer cylinder through branch pipes extending radially from the axis, the medium reaches the inner wall surface of the roll outer cylinder at the tip of the branch pipe. A ring-shaped flow path chamber formed by the inner cylinder is provided inside the inner wall surface of the roll outer cylinder at the front position, and a flow path formed by the inner wall surface of the outer cylinder and the outer surface of the inner cylinder is provided, and the flow path chamber A roll for casting a plastic sheet or the like, characterized in that the communication port between the flow path and the flow path is a uniform constricted opening.