JPH0947811A - Rotary wheel type continuous extruder - Google Patents
Rotary wheel type continuous extruderInfo
- Publication number
- JPH0947811A JPH0947811A JP19823895A JP19823895A JPH0947811A JP H0947811 A JPH0947811 A JP H0947811A JP 19823895 A JP19823895 A JP 19823895A JP 19823895 A JP19823895 A JP 19823895A JP H0947811 A JPH0947811 A JP H0947811A
- Authority
- JP
- Japan
- Prior art keywords
- rotary wheel
- wheel
- grooves
- refrigerant
- endless
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/005—Continuous extrusion starting from solid state material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転ホイールが均
一に冷却されて熱歪みによる割れが生じ難い、回転ホイ
ール式連続押出機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary wheel type continuous extruder in which a rotary wheel is cooled uniformly so that cracks due to thermal strain hardly occur.
【０００２】[0002]
【従来の技術】回転ホイール式連続押出機は、図３にそ
の側面図を示すように、シャフト10に一体に装着した回
転ホイール40の周縁にエンドレス溝ｃが設けられ、この
エンドレス溝ｃと固定シューブロック80とにより形成さ
れる通路82内にアルミニウム等の金属素材90を連続的に
供給し、前記回転ホイール40を回転させて前記金属素材
90との間に生じる接触摩擦抵抗により前記金属素材90に
押出圧力を発生させ、この金属素材90を通路82内の終端
部に配置したダイ83を通して所定の形状に押出す押出機
である。前記回転ホイール40には、生産性を高める為に
エンドレス溝を複数本設けられたものも用いられてい
る。2. Description of the Related Art As shown in a side view of FIG. 3, a rotary wheel type continuous extruder is provided with an endless groove c on the periphery of a rotary wheel 40 integrally mounted on a shaft 10 and fixed to the endless groove c. A metal material 90 such as aluminum is continuously supplied into a passage 82 formed by the shoe block 80, and the rotating wheel 40 is rotated to rotate the metal material.
This is an extruder that generates an extrusion pressure on the metal material 90 by the contact frictional resistance generated between the metal material 90 and 90 and extrudes the metal material 90 into a predetermined shape through a die 83 arranged at the end of the passage 82. As the rotary wheel 40, a wheel provided with a plurality of endless grooves is also used in order to improve productivity.
【０００３】図２は、回転ホイールにエンドレス溝を２
本形成した、回転ホイール式連続押出機の冷却構造を示
す縦断面図である。この押出機の２溝型回転ホイール40
は、それぞれエンドレス溝を１本ずつ有する２個の半割
回転ホイール41，42を圧接して構成されている。この２
個の半割回転ホイール41，42の接合面にはそれぞれ角溝
43が対向して形成されており、この２個の角溝43で形成
される空間内にセンターホイール70を嵌合して、半割回
転ホイール41，42同士の周方向の位置合わせがなされ
る。前記回転ホイール40の２個のエンドレス溝ａ，ｂと
固定シューブロック80との間に通路（図示せず）が形成
され、更にその先の２個のエンドレス溝の所定箇所に、
固定シューブロック80の突起部81がそれぞれ係合されて
いる。前記通路内に供給される金属素材（図示せず）
は、前記突起部81に突き当たり、向きを90度変えて、固
定シューブロック80内に配されたダイス（図示せず）か
ら連続的に押出される。この際、金属素材は、エンドレ
ス溝内面との間の接触摩擦により 450℃程度に温度が上
昇する。この摩擦熱を除去する為に、回転ホイールに冷
媒通路を形成し、ここに水等の冷媒を流して回転ホイー
ルを冷却する。この押出機の冷却構造は、例えば図２に
示すように、シャフト10の中心部に冷媒往路20，21と冷
媒復路30がそれぞれ複数本形成されており、この冷媒往
路20，21からそれぞれ冷媒通路60，61が分岐され、この
冷媒通路60，61は回転ホイール40内部を通って冷媒復路
30に接続される。冷媒は、前記冷媒通路60，61の中を、
エンドレス溝ａ側からエンドレス溝ｂ側へ１方向に流れ
る。FIG. 2 shows a rotary wheel having two endless grooves.
It is a longitudinal cross-sectional view which shows the cooling structure of the rotary wheel type continuous extruder which was fully formed. 2 groove type rotary wheel of this extruder 40
Is formed by pressing two half-rotating wheels 41 and 42 each having one endless groove. This 2
Square grooves are formed on the joint surfaces of the individual half-turn wheels 41, 42.
43 are formed so as to face each other, and the center wheel 70 is fitted in the space formed by the two square grooves 43 to align the half-turn wheels 41, 42 with each other in the circumferential direction. . A passage (not shown) is formed between the two endless grooves a and b of the rotating wheel 40 and the fixed shoe block 80, and further, at predetermined positions of the two endless grooves further ahead.
The protrusions 81 of the fixed shoe block 80 are engaged with each other. Metal material (not shown) supplied into the passage
Hits the protrusion 81, changes its direction by 90 degrees, and is continuously extruded from a die (not shown) arranged in the fixed shoe block 80. At this time, the temperature of the metal material rises to about 450 ° C due to contact friction with the inner surface of the endless groove. In order to remove this frictional heat, a coolant passage is formed in the rotating wheel, and a coolant such as water is caused to flow therethrough to cool the rotating wheel. In the cooling structure of this extruder, for example, as shown in FIG. 2, a plurality of refrigerant outward passages 20 and 21 and a plurality of refrigerant return passages 30 are formed in the central portion of the shaft 10, respectively. The refrigerant passages 60 and 61 are branched, and the refrigerant passages 60 and 61 pass through the inside of the rotary wheel 40 to return the refrigerant.
Connected to 30. The refrigerant flows through the refrigerant passages 60 and 61,
Flows in one direction from the endless groove a side to the endless groove b side.
【０００４】[0004]
【発明が解決しようとする課題】しかし、このような従
来の回転ホイール式連続押出機では、回転ホイールに割
れが生じ易く、回転ホイール費が嵩む上、生産性にも悪
影響を及ぼすという問題があった。本発明者等は、この
事態を踏まえて鋭意研究を行い、回転ホイールに割れが
生じるのは、エンドレス溝ａ，ｂ間の温度差が大きい為
であること、前記温度差が大きい理由は、冷媒が１方向
に流れる為、エンドレス溝ａとエンドレス溝ｂとでは、
その下部を流れる冷媒の温度が異なる為であることを突
き止め、更に研究を重ねて本発明を完成するに至った。
本発明は、回転ホイールが均一に冷却されて熱歪みによ
る割れが生じ難い、回転ホイール式連続押出機の提供を
目的とする。However, in such a conventional rotary wheel type continuous extruder, there is a problem that the rotary wheel is easily cracked, the cost of the rotary wheel increases, and the productivity is adversely affected. It was The inventors of the present invention have conducted diligent research based on this situation, and the reason why the rotary wheel is cracked is that the temperature difference between the endless grooves a and b is large, and the reason why the temperature difference is large is that the refrigerant is Flows in one direction, the endless groove a and the endless groove b
It was found that the temperature of the refrigerant flowing in the lower portion was different, and further research was conducted to complete the present invention.
It is an object of the present invention to provide a rotary wheel type continuous extruder in which a rotary wheel is cooled uniformly and cracking due to thermal strain hardly occurs.
【０００５】[0005]
【課題を解決する為の手段】本発明は、シャフトに一体
に装着したホイールの周縁にエンドレス溝を設け、この
エンドレス溝と固定シューブロックとにより形成される
通路内に素材を連続的に供給し、前記ホイールを回転さ
せて前記素材との間に生じる接触摩擦抵抗により前記素
材に押出圧力を発生させ、前記素材を通路内の終端に配
置したダイを通して所定の形状に押出す回転ホイール式
連続押出機において、前記回転ホイールにエンドレス溝
が複数本設けられており、前記回転ホイールに前記エン
ドレス溝を冷却する為の冷媒通路が、エンドレス溝毎に
別個に形成されていることを特徴とする回転ホイール式
連続押出機である。According to the present invention, an endless groove is provided on the periphery of a wheel integrally mounted on a shaft, and a material is continuously supplied into a passage formed by the endless groove and a fixed shoe block. , A rotary wheel type continuous extrusion for extruding the material into a predetermined shape through a die arranged at the end of the passage by generating an extruding pressure on the material by rotating the wheel to generate a contact frictional resistance between the material and the material. In the machine, the rotary wheel is provided with a plurality of endless grooves, and a coolant passage for cooling the endless grooves is formed in the rotary wheel separately for each endless groove. It is a continuous extruder.
【０００６】本発明では、複数設けられたエンドレス溝
を冷却する為の冷媒通路を、エンドレス溝毎に別個に形
成するので、エンドレス溝の冷却が均一になされる。従
って、エンドレス溝間に熱歪みが生じず、回転ホイール
に割れが生じ難い。In the present invention, the cooling medium passages for cooling a plurality of endless grooves are formed separately for each endless groove, so that the endless grooves can be cooled uniformly. Therefore, thermal distortion does not occur between the endless grooves, and the rotating wheel is unlikely to crack.
【０００７】[0007]
【実施例】以下に、本発明の押出機を図を参照して具体
的に説明する。図１は、本発明の押出機の冷却構造の実
施例を示す縦断面図である。冷却構造以外は図２と同じ
なので、ここでは冷却構造についてのみ説明する。図２
と同じ部位には、同じ符号を付した。この押出機の冷却
構造は、シャフト10内を通る冷媒往路22，23と冷媒復路
30、前記冷媒往路22，23からそれぞれ分岐して回転ホイ
ール40内を通る冷媒通路50，51とから構成されている。
前記冷媒往路22から分岐した冷媒通路50は、回転ホイー
ル40のエンドレス溝（以下、溝と略記する）ａ下部のセ
ンターホイール70内をＵターンして冷媒復路30に連結さ
れている。同じように、冷媒往路23から分岐した冷媒通
路51は溝ｂ下部のセンターホイール70内をＵターンして
冷媒復路30に連結されている。この冷却構造によれば、
溝ａの下部の冷媒通路50を通った冷媒は、溝ａ近辺の熱
を抽出したのち、そのまま冷媒復路30を経て排出され
る。同じく、溝ｂの下部の冷媒通路51を通った冷媒は、
溝ｂ近辺の熱を抽出してそのまま冷媒復路30を経て排出
される。その結果、溝ａ、ｂは、共に同じ温度の冷媒に
より冷却される。従って、溝ａ，ｂ間に温度差が生じ
ず、回転ホイールには、熱歪みによる割れが生じ難い。
本発明において、冷媒には、水の他、オイル等の他の冷
媒も使用できる。EXAMPLES The extruder of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a vertical sectional view showing an embodiment of a cooling structure for an extruder of the present invention. 2 except the cooling structure, only the cooling structure will be described here. FIG.
The same parts as those of the above are given the same reference numerals. The cooling structure of this extruder is such that the refrigerant outward passages 22 and 23 passing through the shaft 10 and the refrigerant return passages.
30 and refrigerant passages 50 and 51 that branch from the refrigerant outward passages 22 and 23 and pass through the inside of the rotating wheel 40.
The refrigerant passage 50 branched from the refrigerant outward path 22 is connected to the refrigerant return path 30 by making a U-turn inside the center wheel 70 below the endless groove (hereinafter abbreviated as groove) a of the rotating wheel 40. Similarly, the refrigerant passage 51 branched from the refrigerant outward path 23 makes a U-turn inside the center wheel 70 below the groove b and is connected to the refrigerant return path 30. According to this cooling structure,
The refrigerant passing through the refrigerant passage 50 below the groove a extracts heat in the vicinity of the groove a and then is discharged as it is through the refrigerant return path 30. Similarly, the refrigerant passing through the refrigerant passage 51 below the groove b is
The heat in the vicinity of the groove b is extracted and directly discharged via the refrigerant return path 30. As a result, the grooves a and b are both cooled by the refrigerant having the same temperature. Therefore, a temperature difference does not occur between the grooves a and b, and cracks due to thermal strain do not easily occur in the rotating wheel.
In the present invention, other refrigerants such as oil can be used as the refrigerant in addition to water.
【０００８】図１に示した本発明の回転ホイール式連続
押出機を用いて、ＣＡＴＶ用のＡｌ製パイプを製造し
た。又図２に示した従来の回転ホイール式連続押出機に
ついても同様の製造を行った。回転ホイールは、溝部分
に割れが発生したところで交換した。冷媒には水を用い
た。前記パイプを１年間製造し、回転ホイール１本当た
りの生産量を調べた。又製造中、両溝部の温度差を測定
した。結果を表１に示す。尚、生産量は、従来の押出機
の生産量を 100としたときの比率で表した。Using the rotary wheel type continuous extruder of the present invention shown in FIG. 1, an Al pipe for CATV was manufactured. Further, the same manufacturing was performed for the conventional rotary wheel type continuous extruder shown in FIG. The rotating wheel was replaced when the groove cracked. Water was used as the refrigerant. The pipe was manufactured for 1 year, and the production amount per rotating wheel was examined. Also, the temperature difference between both groove portions was measured during manufacturing. The results are shown in Table 1. The production amount is expressed as a ratio when the production amount of the conventional extruder is 100.
【０００９】[0009]
【表１】 表１より明らかなように、本発明例では、回転ホイール
１本当たりの生産量が従来例に比べて38％増加した。こ
れは、両溝部の温度差が小さく、回転ホイールに掛かる
熱歪みが小さかった為である。[Table 1] As is clear from Table 1, in the example of the present invention, the production amount per rotating wheel increased by 38% as compared with the conventional example. This is because the temperature difference between both groove portions was small and the thermal strain applied to the rotating wheel was small.
【００１０】以上、１溝ホイールを２個接合した回転ホ
イールの場合について説明したが、本発明は、１ホイー
ルに２溝形成したものや、３溝を有する回転ホイールの
場合に適用しても同様の効果が得られる。The case of the rotary wheel in which two one-groove wheels are joined has been described above, but the present invention is also applicable to the case where two grooves are formed in one wheel or a rotary wheel having three grooves. The effect of is obtained.
【００１１】[0011]
【効果】以上に述べたように、本発明の押出機では、複
数の溝が、それぞれ別個の冷媒通路により冷却されるの
で、回転ホイールが均一に冷却され、熱歪みに起因する
割れが生じ難い。従って、回転ホイール費が削減され、
又生産性が向上し、工業上顕著な効果を奏する。As described above, in the extruder of the present invention, the plurality of grooves are cooled by the respective refrigerant passages, so that the rotating wheel is cooled uniformly and cracks due to thermal strain hardly occur. . Therefore, the rotating wheel cost is reduced,
In addition, the productivity is improved and the industrially remarkable effect is exhibited.
【図１】本発明の回転ホイール式連続押出機の冷却構造
の態様を示す縦断面図である。FIG. 1 is a vertical sectional view showing an embodiment of a cooling structure of a rotary wheel type continuous extruder of the present invention.
【図２】従来の回転ホイール式連続押出機の冷却構造の
縦断面図である。FIG. 2 is a vertical sectional view of a cooling structure of a conventional rotary wheel type continuous extruder.
【図３】回転ホイール式連続押出機の説明図である。FIG. 3 is an explanatory view of a rotary wheel type continuous extruder.
10────シャフト 20〜23──冷媒往路 30────冷媒復路 40────回転ホイール 41,42 ──半割回転ホイール 43────角溝 50,51 ──冷媒通路 60,61 ──冷媒通路 70────センターホイール 80────固定シューブロック 81────突起部 82────通路 83────ダイス 90────金属素材 a,b,c ──エンドレス溝 10 ──── Shaft 20-23 ── Refrigerant outward path 30 ──── Refrigerant return path 40 ──── Rotating wheel 41,42 ── Half rotating wheel 43 ──── Square groove 50,51 ── Refrigerant passage 60,61 ── Refrigerant passage 70 ──── Center wheel 80 ──── Fixed shoe block 81 ──── Projection 82 ──── Passage 83 ──── Dice 90 ──── Metal material a, b, c ── Endless groove
Claims (1)
縁にエンドレス溝を設け、このエンドレス溝と固定シュ
ーブロックとにより形成される通路内に素材を連続的に
供給し、前記ホイールを回転させて前記素材との間に生
じる接触摩擦抵抗により前記素材に押出圧力を発生さ
せ、前記素材を通路内の終端に配置したダイを通して所
定の形状に押出す回転ホイール式連続押出機において、
前記回転ホイールにエンドレス溝が複数本設けられてお
り、前記回転ホイールに前記エンドレス溝を冷却する為
の冷媒通路が、エンドレス溝毎に別個に形成されている
ことを特徴とする回転ホイール式連続押出機。1. An endless groove is provided on a peripheral edge of a wheel integrally mounted on a shaft, and a material is continuously supplied into a passage formed by the endless groove and a fixed shoe block, and the wheel is rotated to rotate the wheel. In a rotary wheel type continuous extruder for generating an extrusion pressure in the material by a contact frictional resistance generated between the material and extruding the material into a predetermined shape through a die arranged at the end of the passage,
A plurality of endless grooves are provided in the rotating wheel, and a refrigerant passage for cooling the endless grooves is formed in the rotating wheel separately for each endless groove. Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19823895A JPH0947811A (en) | 1995-08-03 | 1995-08-03 | Rotary wheel type continuous extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19823895A JPH0947811A (en) | 1995-08-03 | 1995-08-03 | Rotary wheel type continuous extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0947811A true JPH0947811A (en) | 1997-02-18 |
Family
ID=16387807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19823895A Pending JPH0947811A (en) | 1995-08-03 | 1995-08-03 | Rotary wheel type continuous extruder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0947811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007139387A1 (en) * | 2006-05-26 | 2007-12-06 | Ntnu Technology Transfer As | Apparatus and method for extrusion |
| CN112170513A (en) * | 2020-09-27 | 2021-01-05 | 无锡市红年金属制品科技有限公司 | Copper bar processing device capable of continuously extruding |
-
1995
- 1995-08-03 JP JP19823895A patent/JPH0947811A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007139387A1 (en) * | 2006-05-26 | 2007-12-06 | Ntnu Technology Transfer As | Apparatus and method for extrusion |
| CN112170513A (en) * | 2020-09-27 | 2021-01-05 | 无锡市红年金属制品科技有限公司 | Copper bar processing device capable of continuously extruding |
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