JPS5837636Y2 - Cylinder for extruder - Google Patents
Cylinder for extruderInfo
- Publication number
- JPS5837636Y2 JPS5837636Y2 JP11814480U JP11814480U JPS5837636Y2 JP S5837636 Y2 JPS5837636 Y2 JP S5837636Y2 JP 11814480 U JP11814480 U JP 11814480U JP 11814480 U JP11814480 U JP 11814480U JP S5837636 Y2 JPS5837636 Y2 JP S5837636Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- ring
- extruder
- heating
- cylinder body
- 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.)
- Expired
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は、押出機用シリンダ、特に、単軸又は多軸押出
機用のシリンダの加熱、冷却装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating and cooling device for a cylinder for an extruder, particularly for a single-screw or multi-screw extruder.
従来、押出機用シリンダの加熱、冷却手段には種々のも
のがある。Conventionally, there are various heating and cooling means for extruder cylinders.
その一種類であるドリルシリンダの一例を示すと、添付
図面第１図ないし第３図に示すとおりで゛ある。An example of one type of drill cylinder is shown in FIGS. 1 to 3 of the accompanying drawings.
すなわち、図におうて符号１はシリンダ本体であって、
以下、蒸気加熱の場合を例にとって示すと、符号２はシ
リンダ本体１のシリンダ壁部内に軸方向に向かって設け
られた多数のドリル穴である。That is, in the figure, numeral 1 is the cylinder body,
Hereinafter, taking the case of steam heating as an example, reference numeral 2 denotes a large number of drill holes provided in the cylinder wall of the cylinder body 1 in the axial direction.
このドリル穴２は、その両端部において、互に隣接する
ドリル穴２と連通していることにより、加熱又は冷却用
の流体が、流入口３から流出口４に向かって、第３図に
記載の矢印によって示すように、２個の流路に分流して
シリンダ壁内をじぐざぐに流れるように構成されている
。This drill hole 2 communicates with adjacent drill holes 2 at both ends thereof, so that the heating or cooling fluid flows from the inlet 3 toward the outlet 4 as shown in FIG. As shown by the arrows, the flow is divided into two flow paths and flows in a zigzag manner within the cylinder wall.
従来装置は、このように構成されているために、流入口
３から流入した加熱又は冷却用の流体は、その流路の途
中において、ドリル穴２の壁面との間に熱交換を行ない
、流出口４に近付くに従い、加熱の場合にあっては温度
が下降し、また、冷却にあっては上昇して熱交換が低下
し、従って、流路がきわめて長いために、流入口３近辺
に比べて、流出口近くのシリンダ壁部は、十分に加熱又
は冷却されなくなる。Since the conventional device is configured in this way, the heating or cooling fluid that flows in from the inlet 3 exchanges heat with the wall surface of the drill hole 2 in the middle of the flow path, and the flow is improved. As the temperature approaches the outlet 4, the temperature decreases in the case of heating and rises in the case of cooling, reducing the heat exchange. As a result, the cylinder wall near the outlet is not sufficiently heated or cooled.
また、これに加えて、加熱の場合にあっては、流出口４
に近付くに従い、ドレンも増加し、加熱効率はますます
低下する。In addition to this, in the case of heating, the outlet 4
As the temperature approaches , the drain also increases and the heating efficiency decreases more and more.
このように従来装置においては、加熱又は冷却用の流体
が、流入口から流出口に向かって２個の長い流路を流れ
るために、シリンダ本体の流入口近辺と流出口近辺との
間では、その加熱又は冷却の程度が大きく異なって温度
変化が生じ、その結果、シリンダ本体には熱変形による
曲りを生じ、従って、シリンダ本体とスクリュとの間で
接触を発生してかじりを生ずるという欠点を、従来装置
は有していた。In this way, in the conventional device, the heating or cooling fluid flows through two long channels from the inlet to the outlet, so between the vicinity of the inlet and the vicinity of the outlet of the cylinder body, The degree of heating or cooling varies greatly, resulting in temperature changes, and as a result, the cylinder body is bent due to thermal deformation, resulting in contact between the cylinder body and the screw, resulting in galling. , the conventional device had.
本考案はこのような従来装置における欠点を除去した押
出機用シリンダを得ることをその目的とするものである
。The object of the present invention is to obtain a cylinder for an extruder that eliminates the drawbacks of the conventional apparatus.
以下、本考案を、その一実施例を示す添付図面に基づい
て説明する。Hereinafter, the present invention will be explained based on the accompanying drawings showing one embodiment thereof.
単軸押出機のシリンダ本体を示す第４ないし第６図にお
いて、符号１１．及び１２は、シリンダ本体１３の一端
部側に端部壁１４を残してシリンダボア１５とほぼ同心
に且つ軸方向に並列して設けられた２個のリング状流路
であって、両リング状流路１１゜１２の間には隔壁１６
が形成されている。In FIGS. 4 to 6 showing the cylinder body of the single-screw extruder, reference numeral 11. and 12 are two ring-shaped flow passages that are provided substantially concentrically with the cylinder bore 15 and in parallel in the axial direction, leaving an end wall 14 on one end side of the cylinder body 13, and both ring-shaped flow passages are provided. There is a partition wall 16 between the passages 11 and 12.
is formed.
次に符号１７はリング状流路１２の反端部側端面にシリ
ンダ本体１３の軸方向に設けられた有底の多数のドリル
穴、１８はドリル穴１７に対応して隔壁１６に固着して
設けられた管であって、管１８は加熱又は冷却用の流体
が流通可能のすきまを有してドリル穴１７に嵌入される
と共にその先端はドリル穴１７の穴底との間に加熱又は
冷却用流体が流通するためのすきまを有しており、また
、管１８の両端は、ドリル穴１７の底部近辺及びリング
状流路１１にそれぞれ開口している。Next, reference numeral 17 denotes a number of bottomed drill holes provided in the axial direction of the cylinder body 13 on the end surface of the opposite end of the ring-shaped channel 12, and 18 corresponds to the drill holes 17 and is fixed to the partition wall 16. The pipe 18 is fitted into the drill hole 17 with a gap through which a heating or cooling fluid can flow, and its tip is connected to the bottom of the drill hole 17 for heating or cooling. The pipe 18 has a gap for the circulation of the fluid, and both ends of the pipe 18 are opened near the bottom of the drill hole 17 and into the ring-shaped channel 11, respectively.
また、リング状流路１１．１２には、加熱又は冷却用流
体を注入又は排出するためのノズル１９．１９’が設け
られている。The ring-shaped channel 11.12 is also provided with a nozzle 19.19' for injecting or discharging a heating or cooling fluid.
本考案はこのように構成されているために、加熱又は冷
却用流体は一方のノズル１９又は１９′、例えば、加熱
用流体がノズル１９より注入されると、リング状流路１
１に入り、ここで分流して各管１８内に入って流れ、管
１８の端末において管１８から出た後、ドリル穴１７と
管１８との間を通ってシリンダ本体１３の端部側に逆流
して、リング状流路１２に流入して合流し、リング状流
路１２に開口するノズル１９′から排出される。Since the present invention is configured in this way, the heating or cooling fluid is injected from one nozzle 19 or 19', for example, when the heating fluid is injected from the nozzle 19, the ring-shaped flow path 1
1, the flow is divided here and flows into each pipe 18, and after exiting from the pipe 18 at the end of the pipe 18, it passes between the drill hole 17 and the pipe 18 and flows to the end side of the cylinder body 13. The water flows backward, flows into the ring-shaped flow path 12, merges therewith, and is discharged from the nozzle 19' that opens into the ring-shaped flow path 12.
本考案のシリンダ、特にその冷却装置はこのように構成
され且２加熱又は冷却用流体は流れるので、１個のドリ
ル穴１７を通過し熱交換した加熱又は冷却用の流体は、
再び、他のドリル穴１７を通過することなく、シかも、
同じ流体が流れる流路も短いために、すべてのドリル穴
１７は同一状態で加熱又は売却され、しかも、シリンダ
の軸方向における加熱又は冷却状態も大差なく、従って
、円周方向にあっては全く均一に、また、軸方向にあっ
てもほぼ均一に加熱又は冷却される。Since the cylinder of the present invention, especially its cooling device, is constructed in this way and two heating or cooling fluids flow, the heating or cooling fluid passing through one drill hole 17 and exchanging heat is
Again, without passing through the other drill hole 17,
Since the flow path through which the same fluid flows is short, all the drill holes 17 are heated or sold in the same state, and the heating or cooling state in the axial direction of the cylinder is also not much different, so there is no difference in the circumferential direction. It is heated or cooled uniformly and almost uniformly even in the axial direction.
従って、熱変形による曲りも発生せず、その結果、シリ
ンダ本体とスクリュとの間の接触もなく、従って、かじ
りを生ずる恐れも全くない。Therefore, no bending occurs due to thermal deformation, and as a result, there is no contact between the cylinder body and the screw, and therefore there is no risk of galling.
第１図は従来のドリルシリンダの側面図、第２図はその
一部断面正面図、第３図はその流体の流路の展開図、第
４図は本考案の一実施例の側面図、第５図はその一部断
面正面図、第６図はその流路の展開図である。
１１・・・・・・リング状流路、１１′・・・・・・リ
ング状みぞ、１２・・・・・・リング状流路、１３・・
・・・・シリンダ本体、１４・・・・・・端部壁、１５
・・・・・・シリンダボア、１６・・・・・・隔壁、１
７・・・・・・ドリル穴、１８・・・・・・管、１９．
１９’・・・・・・ノズル。FIG. 1 is a side view of a conventional drill cylinder, FIG. 2 is a partially sectional front view thereof, FIG. 3 is a developed view of its fluid flow path, and FIG. 4 is a side view of an embodiment of the present invention. FIG. 5 is a partially sectional front view thereof, and FIG. 6 is a developed view of the flow path. 11...Ring-shaped channel, 11'...Ring-shaped groove, 12...Ring-shaped channel, 13...
... Cylinder body, 14 ... End wall, 15
... Cylinder bore, 16 ... Bulkhead, 1
7...Drill hole, 18...Pipe, 19.
19'...Nozzle.
Claims (1)
てシリンダボア１５とほぼ同心且つ間に隔壁１６を形成
するようにシリンダ本体１３の軸方向に並列して設けら
れた２個のリング状流路１１．１２と、反端部側のリグ
状流路１２の反端部側端面に軸方向に設けられた有底の
多数のドリル穴１７と、ドリル穴１７に対応して隔壁１
６に固着して設けられると共にドリル穴１７との間に流
体が流通可能なすきまを有して嵌入され且つその両端が
リング状流路１１及びドリル穴１７の底部近辺に開口す
るようにされた管１８とから構成され、リング状流路１
１゜１２にはそれぞれノズル１９．１９’が設けられて
いることを特徴とする押出機用シリンダ。Two ring-shaped rings are provided in parallel in the axial direction of the cylinder body 13 of the extruder so as to be substantially concentric with the cylinder bore 15 and to form a partition wall 16 therebetween, leaving an end wall 14 at one end of the cylinder body 13 of the extruder. The flow passages 11 and 12, a large number of bottomed drill holes 17 provided in the axial direction on the end surface of the opposite end of the rig-shaped flow passage 12 on the opposite end side, and a partition wall 1 corresponding to the drill holes 17.
6, and is fitted with a gap between it and the drill hole 17 that allows fluid to flow therethrough, and both ends thereof are opened near the ring-shaped channel 11 and the bottom of the drill hole 17. It is composed of a pipe 18 and a ring-shaped channel 1.
A cylinder for an extruder, characterized in that nozzles 19 and 19' are provided at 1° and 12, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11814480U JPS5837636Y2 (en) | 1980-08-22 | 1980-08-22 | Cylinder for extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11814480U JPS5837636Y2 (en) | 1980-08-22 | 1980-08-22 | Cylinder for extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5741724U JPS5741724U (en) | 1982-03-06 |
| JPS5837636Y2 true JPS5837636Y2 (en) | 1983-08-25 |
Family
ID=29478863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11814480U Expired JPS5837636Y2 (en) | 1980-08-22 | 1980-08-22 | Cylinder for extruder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5837636Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7845120B2 (en) * | 2022-09-05 | 2026-04-14 | Ｕｂｅマシナリー株式会社 | Heating housing and resin molding machine |
-
1980
- 1980-08-22 JP JP11814480U patent/JPS5837636Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5741724U (en) | 1982-03-06 |
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