JPH0225683B2 - - Google Patents
Info
- Publication number
- JPH0225683B2 JPH0225683B2 JP57100382A JP10038282A JPH0225683B2 JP H0225683 B2 JPH0225683 B2 JP H0225683B2 JP 57100382 A JP57100382 A JP 57100382A JP 10038282 A JP10038282 A JP 10038282A JP H0225683 B2 JPH0225683 B2 JP H0225683B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating wheel
- extrusion
- shoe
- material supply
- groove
- 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 - Lifetime
Links
- 238000001125 extrusion Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007872 degassing Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
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
-
- 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
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/006—Gas treatment of work, e.g. to prevent oxidation or to create surface effects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Extrusion Of Metal (AREA)
Description
【発明の詳細な説明】
この発明は回転ホイール式金属押出し成形装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating wheel type metal extrusion molding apparatus.
従来、外周に溝を有する回転ホイールにシユー
を添設し、シユーと溝により形成される押出し通
路に金属原料を供給し、シユーに形成した孔から
金属を押出し成形する方式が採用されている。こ
の方式において粉粒状原料を供給し、押出し成形
を行う場合問題となるのは、粉粒状原料間に存在
する空気が押出し成形の際気泡となつて金属に含
まれ、成形品の品質低下となることである。 Conventionally, a method has been adopted in which a shoe is attached to a rotating wheel having a groove on the outer periphery, a metal raw material is supplied to an extrusion passage formed by the shoe and the groove, and the metal is extruded from a hole formed in the shoe. When extrusion molding is performed by supplying powdery raw materials using this method, the problem is that the air present between the powdery raw materials becomes bubbles during extrusion molding and is contained in the metal, resulting in a decline in the quality of the molded product. That's true.
この発明は以上のような欠点を改善するために
なされたもので、粉粒状原料内の空気を脱気する
ことによつて、金属内に気泡を生じさせることが
なく、成形品の品質低下を招くことがない回転ホ
イール式金属押出し成形装置を提供することを目
的とする。 This invention was made to improve the above-mentioned drawbacks, and by deaerating the air in the powdery raw materials, air bubbles are not generated in the metal, and the quality of the molded product is reduced. It is an object of the present invention to provide a rotating wheel type metal extrusion molding apparatus that does not cause any damage.
本発明は、回転ホイールの溝に向つてシユーに
開口した材料供給孔の回転方向上流にシール部を
設け、当該シール部の回転方向下流の通路に真空
ポンプの吸引側ダクトを連通せしめたことを特徴
とするものである。さらに本発明は、材料供給孔
と真空ポンプの吸引側ダクト間に気密型材料供給
槽を介在せしめたことを特徴とするものである。 The present invention provides a seal portion upstream in the rotational direction of a material supply hole that opens toward the groove of the rotating wheel, and a suction side duct of a vacuum pump is communicated with a passage downstream in the rotational direction of the seal portion. This is a characteristic feature. Furthermore, the present invention is characterized in that an airtight material supply tank is interposed between the material supply hole and the suction side duct of the vacuum pump.
以下図に示す実施例に基づき発明を詳細に説明
する。 The invention will be described in detail below based on embodiments shown in the figures.
図において１は回転ホイール、２は固定シユー
である。回転ホイール１は円盤状の部材であり、
その外周面１２に断面Ｕ字状の溝１１が形成され
ている。シユー２は回転ホイール１に添設し、溝
１１間に材料の押出し通路３を形成する部材であ
る。従つてシユー２の一側面は回転ホイール１の
外周面１２と同半径の円弧面２１が形成されてい
る。この円弧面２１に突起３１、材料供給孔３
２、係止段差３３、アバトメント３４が溝１１に
対応して形成されている。 In the figure, 1 is a rotating wheel, and 2 is a fixed shoe. The rotating wheel 1 is a disc-shaped member,
A groove 11 having a U-shaped cross section is formed on the outer circumferential surface 12 thereof. The shoe 2 is a member that is attached to the rotating wheel 1 and forms a material extrusion path 3 between the grooves 11. Therefore, one side of the shoe 2 is formed with an arcuate surface 21 having the same radius as the outer peripheral surface 12 of the rotary wheel 1. A protrusion 31 and a material supply hole 3 are provided on this arcuate surface 21.
2. A locking step 33 and an abutment 34 are formed corresponding to the groove 11.
まず材料供給孔３２はシユー１の円弧面２１へ
反対側面から貫通する孔である。材料供給孔３２
の回転ホイール１の回転方向上流側に突起３１が
形成されている。突起３１の形状は溝１１の断面
形状に対し同形状で且つ若干小さ目のサイズであ
り、溝１１に対し供給材料がはいり込まない程度
の隙間を持たせてある。材料供給孔３２の回転ホ
イール１の回転方向下流側には溝１１に対応し
て、溝１１の深さよりは低く、溝１１の幅より小
さな幅の段差３３を形成してある。段差３３の終
端には溝１１の断面形状と同形状のアバトメント
３４を形成してある。アバトメント３４の回転ホ
イール１の回転方向上流側にはダイ３６を埋め込
みダイ３６の中央から反対側面に抜ける孔３９を
形成してある。 First, the material supply hole 32 is a hole that penetrates the arcuate surface 21 of the shoe 1 from the opposite side. Material supply hole 32
A protrusion 31 is formed on the upstream side of the rotating wheel 1 in the rotational direction. The shape of the protrusion 31 is the same as the cross-sectional shape of the groove 11, and is slightly smaller in size, and is provided with a gap to the extent that the material to be supplied does not fit into the groove 11. A step 33 having a width lower than the depth of the groove 11 and smaller than the width of the groove 11 is formed in correspondence with the groove 11 on the downstream side of the material supply hole 32 in the rotational direction of the rotary wheel 1 . An abutment 34 having the same cross-sectional shape as the groove 11 is formed at the end of the step 33. A die 36 is embedded in the abutment 34 on the upstream side in the direction of rotation of the rotary wheel 1, and a hole 39 is formed through the center of the die 36 to the opposite side.
前記突起３１の回転ホイール１の回転方向上流
には溝１１側にシール部となるスクレーパ３５が
形成してある。スクレーパ３５は回転ホイール１
の回転方向上流側に鋭角に突出するよう形成して
ある。スクレーパ３５の先端形状は溝１１内に形
成されたバリの一部を削り取れるような形であ
る。スクレーパ３５と突起３１間には吸気孔３７
を開口して反対側面に連通してある。 A scraper 35 serving as a seal portion is formed on the groove 11 side upstream of the protrusion 31 in the rotational direction of the rotary wheel 1. The scraper 35 is the rotating wheel 1
It is formed so as to protrude at an acute angle on the upstream side in the direction of rotation. The shape of the tip of the scraper 35 is such that a portion of the burr formed in the groove 11 can be scraped off. An intake hole 37 is provided between the scraper 35 and the protrusion 31.
It is opened and communicated with the opposite side.
材料供給孔３２に気密型材料供給槽４を連通す
るように取付ける。気密型材料供給槽４は粉粒状
材料５を内蔵し、外界から密封した材料供給槽で
ある。この気密型材料供給槽４と吸気孔３７双方
を真空ポンプ６の吸引側ダクト６１と連通してあ
る。 The airtight material supply tank 4 is attached to the material supply hole 32 so as to communicate therewith. The airtight material supply tank 4 contains a powdery material 5 and is sealed from the outside world. Both the airtight material supply tank 4 and the suction hole 37 are communicated with a suction side duct 61 of the vacuum pump 6.
以上のように構成した回転ホイール式金属押出
し成形装置の作動について説明すると、回転ホイ
ール１を回転してシユー２の孔３９から金属成形
品８を押出すと同時に真空ポンプ６を作動して脱
気を開始する。気密型材料供給槽４は材料供給孔
３２及び押出し通路３に連通しているため、粉粒
材料５内の空気が吸引側ダクト６１から脱気され
る。また押出し通路３内の空気は突起３１によつ
て粉粒材料の吸引を防止され、吸気孔３７と真空
ポンプ６の吸引側ダクト６１とに連通しているの
で、この空間内の空気も脱気される。 To explain the operation of the rotating wheel type metal extrusion molding apparatus configured as above, the rotating wheel 1 is rotated to extrude the metal molded product 8 from the hole 39 of the shoe 2, and at the same time the vacuum pump 6 is operated to degas it. Start. Since the airtight material supply tank 4 communicates with the material supply hole 32 and the extrusion passage 3, the air in the granular material 5 is evacuated from the suction side duct 61. In addition, the air in the extrusion passage 3 is prevented from suctioning particulate material by the protrusion 31, and is communicated with the suction hole 37 and the suction side duct 61 of the vacuum pump 6, so the air in this space is also degassed. be done.
更に金属成形品８を押出す際に溝１１内周面及
び、回転ホイール１外周面１２にバリ１０が形成
されるが（第４図）、このバリ１０のうちスクレ
ーパ３５によつて溝１１の内周面に付着したもの
のみを切削し、回転ホイール１外周面１２に付着
したバリ１０は存置しておく。（第５，６図）こ
のバリ１０によつて回転ホイール１の外周面１２
とシユー２間の間隙をなくし、ここから押出し通
路３内への空気の侵入を防止する。（第７図）
またシール部としては既述した実施例のスクレ
ーパ３５に限定されず、溝１１内に突出して押出
し通路３の上流側をシールするものなら溝１１方
向に長い突条状のもの等様々な形状が考えられ
る。 Furthermore, when extruding the metal molded product 8, burrs 10 are formed on the inner circumferential surface of the groove 11 and the outer circumferential surface 12 of the rotary wheel 1 (FIG. 4). Only the burr attached to the inner circumferential surface is cut, and the burr 10 attached to the outer circumferential surface 12 of the rotating wheel 1 is left as is. (FIGS. 5 and 6) This burr 10 causes the outer peripheral surface 12 of the rotating wheel 1 to
The gap between the shoe 2 and the shoe 2 is eliminated to prevent air from entering the extrusion passage 3 from there. (FIG. 7) Furthermore, the sealing portion is not limited to the scraper 35 of the previously described embodiment, but may be a long protruding strip in the direction of the groove 11 as long as it protrudes into the groove 11 and seals the upstream side of the extrusion passage 3. Various shapes are possible.
この発明は以上のような構成を有するため、粉
粒原料中の空気を脱気して金属成形品中の気泡を
なくし、良質な成形品を製造することができる。
更に気密型材料供給槽中の空気を脱気することに
よつて脱気をより完壁なものとすることができる
他、ホツパ等から押出し通路への粉粒原料の供給
が脱気時の引き込みによりスムーズに行なえ、押
出しが断えまなく行われる。また、脱気により粉
粒原料の押出し通路内における充満度が向上し、
溝との摩擦力を増加させることができることとも
合わせて、安定した押し出し作用となり、品質の
よい押出し製品が得られる。 Since the present invention has the above-described configuration, it is possible to degas the air in the powder raw material, eliminate air bubbles in the metal molded product, and manufacture a high-quality molded product.
Furthermore, by degassing the air in the airtight material supply tank, degassing can be made more complete. In addition, the supply of powdered raw material from the hopper etc. to the extrusion passage can be carried out during degassing. This allows for smooth extrusion and continuous extrusion. In addition, degassing improves the degree of filling in the extrusion passage of granular raw materials,
Combined with the ability to increase the frictional force with the grooves, this results in a stable extrusion action, resulting in a high-quality extruded product.
第１図はこの発明の一実施例の縦断面図、第２
図は回転ホイールとシユーの斜視図、第３図はス
クレーパの他の実施例の縦断面図、第４図はＡ−
Ａ線断面図、第５図はＢ−Ｂ線断面図、第６図は
Ｃ−Ｃ線断面図、第７図はＤ−Ｄ線断面図であ
る。
１……回転ホイール、２……シユー、３……押
出し通路、４……気密型材料供給槽、５……粉粒
状材料、６……真空ポンプ、８……金属成形品、
１０……バリ、１１……溝、１２……外周面、２
１……円弧面、３１……突起、３２……材料供給
孔、３３……係止段差、３４……アバトメント、
３５……スクレーパ、３６……ダイ、３７……吸
気孔、３８……排出孔、６１……吸引側ダクト。
Fig. 1 is a longitudinal cross-sectional view of one embodiment of the present invention;
The figure is a perspective view of the rotary wheel and shoe, Figure 3 is a longitudinal sectional view of another embodiment of the scraper, and Figure 4 is A-
5 is a sectional view taken along line B-B, FIG. 6 is a sectional view taken along line C-C, and FIG. 7 is a sectional view taken along line D-D. DESCRIPTION OF SYMBOLS 1...Rotating wheel, 2...Show, 3...Extrusion passage, 4...Airtight material supply tank, 5...Powder and granular material, 6...Vacuum pump, 8...Metal molded product,
10...Flash, 11...Groove, 12...Outer peripheral surface, 2
1... Arc surface, 31... Protrusion, 32... Material supply hole, 33... Locking step, 34... Abutment,
35... Scraper, 36... Die, 37... Intake hole, 38... Discharge hole, 61... Suction side duct.
Claims (1)
される材料の押出し通路に粉粒状原料を供給し、
シユーに形成した孔から押出し金属の成形を行う
回転ホイール式金属押出し成形装置において、 回転ホイールの溝に向つてシユーに開口した材
料供給孔の回転方向上流にシール部を設け、前記
押出し通路に真空ポンプの吸引側ダクトを直接連
通せしめたことを特徴とする回転ホイール式金属
押出し成形装置。 ２ 回転するホイールと固定シユーとの間に形成
される材料の押出し通路に粉粒状原料を供給し、
シユーに形成した孔から押出し金属の成形を行う
回転ホイール式金属押出し成形装置において、 回転ホイールの溝に向つてシユーに開口した材
料供給孔の回転方向上流にシール部を設け、前記
押出し通路に真空ポンプの吸引側ダクトを直接連
通せしめると共に、前記材料供給孔と真空ポンプ
の吸引ダクト間に気密型材料供給槽を介在せしめ
たことを特徴とする回転ホイール式金属押出し成
形装置。[Claims] 1. Supplying a powdery raw material to a material extrusion path formed between a rotating wheel and a stationary shoe;
In a rotating wheel type metal extrusion molding device that forms metal by extrusion from a hole formed in a shoe, a sealing portion is provided upstream in the rotational direction of a material supply hole opened in the shoe toward the groove of the rotating wheel, and a vacuum is applied to the extrusion passage. A rotary wheel type metal extrusion molding device characterized by direct communication with a suction side duct of a pump. 2. Supplying powdery raw material to the material extrusion path formed between the rotating wheel and the stationary shoe,
In a rotating wheel type metal extrusion molding device that forms metal by extrusion from a hole formed in a shoe, a sealing portion is provided upstream in the rotational direction of a material supply hole opened in the shoe toward the groove of the rotating wheel, and a vacuum is applied to the extrusion passage. A rotating wheel type metal extrusion molding apparatus, characterized in that a suction side duct of a pump is directly connected to the suction side duct, and an airtight material supply tank is interposed between the material supply hole and the suction duct of the vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10038282A JPS58218322A (en) | 1982-06-11 | 1982-06-11 | Rotary wheel type metal extruding forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10038282A JPS58218322A (en) | 1982-06-11 | 1982-06-11 | Rotary wheel type metal extruding forming device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10838783A Division JPS5910413A (en) | 1983-06-16 | 1983-06-16 | Rotary wheel type metal extrusion molding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58218322A JPS58218322A (en) | 1983-12-19 |
| JPH0225683B2 true JPH0225683B2 (en) | 1990-06-05 |
Family
ID=14272456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10038282A Granted JPS58218322A (en) | 1982-06-11 | 1982-06-11 | Rotary wheel type metal extruding forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58218322A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9326050D0 (en) * | 1993-12-21 | 1994-02-23 | Holton Machinery Ltd | Continuous extrusion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5940113Y2 (en) * | 1980-10-17 | 1984-11-12 | 三菱アルミニウム株式会社 | Metal extruder using long coil |
-
1982
- 1982-06-11 JP JP10038282A patent/JPS58218322A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58218322A (en) | 1983-12-19 |
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