JPH09122995A - Powder molding equipment - Google Patents
Powder molding equipmentInfo
- Publication number
- JPH09122995A JPH09122995A JP28734495A JP28734495A JPH09122995A JP H09122995 A JPH09122995 A JP H09122995A JP 28734495 A JP28734495 A JP 28734495A JP 28734495 A JP28734495 A JP 28734495A JP H09122995 A JPH09122995 A JP H09122995A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- powder
- axis cylinders
- face
- cylinders
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/08—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with two or more rams per mould
- B28B3/086—The rams working in different directions
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
(57)【要約】
【課題】 三次元方向から粉体を圧縮することができる
粉体の成形装置を提供する。
【解決手段】 マシンフレーム６内に１対のＸ軸シリン
ダ７，８がピストン突出方向を同一直線上に揃えて対面
配置されている。このＸ軸シリンダ７，８の軸方向と直
交する方向に１対のＹ軸シリンダ９，１０がピストン突
出方向を同一直線上に揃えて対面配置されている。Ｘ軸
シリンダ７，８及びＹ軸シリンダ９，１０の軸方向と直
交する方向に１対のＺ軸シリンダ１１，１２がピストン
突出方向を同一直線上に揃えて対面配置されている。Ｘ
軸シリンダ７，８のピストンロッドの先端に左パンチ７
ａ、右パンチ８ａが取り付けられ、Ｙ軸シリンダ９，１
０のピストンロッドの先端に前パンチ９ａ、後パンチ１
０ａが取り付けられ、Ｚ軸シリンダ１１，１２のピスト
ンロッドの先端に上パンチ１１ａ、下パンチ１２ａが取
り付けられている。
(57) Abstract: To provide a powder molding apparatus capable of compressing powder from a three-dimensional direction. SOLUTION: A pair of X-axis cylinders 7 and 8 are face-to-face arranged in a machine frame 6 with their piston protruding directions aligned on the same straight line. A pair of Y-axis cylinders 9 and 10 are arranged face-to-face in the direction orthogonal to the axial direction of the X-axis cylinders 7 and 8 with their piston protruding directions aligned on the same straight line. A pair of Z-axis cylinders 11 and 12 are arranged face-to-face in the direction orthogonal to the axial directions of the X-axis cylinders 7 and 8 and the Y-axis cylinders 9 and 10 with the piston projecting directions aligned on the same straight line. X
The left punch 7 is attached to the tip of the piston rod of the shaft cylinders 7 and 8.
a, right punch 8a is attached, Y-axis cylinders 9, 1
Front punch 9a, rear punch 1 at the tip of piston rod 0
0a is attached, and the upper punch 11a and the lower punch 12a are attached to the tips of the piston rods of the Z-axis cylinders 11 and 12.
Description
【０００１】[0001]
【発明の属する技術分野】本発明はセラミックス等の粉
末を加圧成形して成形体（圧粉体）を形成するための成
形装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding apparatus for forming a compact (compacted powder) by compacting powder such as ceramics.
【０００２】[0002]
【従来の技術】一般に、バインダーが含まれていないか
或いは数％含まれているいわゆる乾燥粉体（ゲル状やペ
ースト状でないドライな粉体）を成形する装置として、
図３に模式的に示される単段あるいは多段の一軸プレス
機が用いられている。2. Description of the Related Art Generally, as a device for molding a so-called dry powder (dry powder which is not a gel or paste) containing no binder or a few% of binder,
A single-stage or multi-stage uniaxial press machine schematically shown in FIG. 3 is used.
【０００３】図３において、ダイ（外枠）１内に下パン
チ２が挿入され、粉体３が上方から供給された後、上パ
ンチ４が挿入される。粉体３を下パンチ２と上パンチ４
によって下及び上から押圧し、成形体５を得る。In FIG. 3, the lower punch 2 is inserted into the die (outer frame) 1, the powder 3 is supplied from above, and then the upper punch 4 is inserted. Powder 3 with lower punch 2 and upper punch 4
By pressing from below and above, a molded body 5 is obtained.
【０００４】[0004]
【発明が解決しようとする課題】図３の如き１軸プレス
機によって粉体を加圧成形する場合、粉体は、上下軸方
向の力を受け圧縮されると同時に、粉体の集合体中に閉
じ込められた空気や粉体に添加したバインダー等の弾性
体が圧縮の反力として軸と直角方向に膨張しようとす
る。この膨張が粉体とダイ内壁との摩擦力となる。この
摩擦力は上パンチの圧縮力Ｆの反力として作用する。ま
た摩擦力はダイの軸方向の長さが長くなればなるほど大
きくなる。このことから、ダイ上部の粉体は良く圧縮さ
れるがダイ底部の粉体は充分に圧縮されず、成形体の密
度ムラを生ずる原因となる。When the powder is pressure-molded by the uniaxial pressing machine as shown in FIG. 3, the powder is compressed by being applied with the force in the vertical axis direction, and at the same time, in the powder aggregate. An elastic body such as air trapped in the powder or a binder added to the powder tries to expand in the direction perpendicular to the axis as a reaction force of compression. This expansion becomes a frictional force between the powder and the inner wall of the die. This frictional force acts as a reaction force of the compression force F of the upper punch. Further, the frictional force becomes larger as the axial length of the die becomes longer. From this, the powder on the top of the die is compressed well, but the powder on the bottom of the die is not compressed sufficiently, which causes uneven density of the molded body.
【０００５】この密度ムラを解消する手段としてダイを
フローティング動作させたり、強制的に断続的に下降さ
せたりする工夫が成されているが、充分でない。As a means for eliminating this density unevenness, measures have been taken for floating the die or forcibly lowering it intermittently, but this is not sufficient.
【０００６】本発明は三次元方向から粉体を圧縮するこ
とにより、密度ムラがきわめて小さい成形体を成形でき
る粉体の成形装置を提供することを目的とする。An object of the present invention is to provide a powder molding apparatus capable of molding a molded body having extremely small density unevenness by compressing the powder in three-dimensional directions.
【０００７】[0007]
【課題を解決するための手段】本発明の粉体の成形装置
は、粉体をパンチによって押圧して成形する粉体の成形
装置において、該パンチとして、粉体を互いに直交する
Ｘ，Ｙ，Ｚの３方向から押圧するように３対のパンチを
備えたことを特徴とするものである。The powder molding apparatus of the present invention is a powder molding apparatus that presses powder by a punch to mold the powder, and the powder is used as a punch in which X, Y, and It is characterized in that three pairs of punches are provided so as to be pressed from three directions of Z.
【０００８】かかる粉体の成形装置によると、粉体を互
いに直交するＸ，Ｙ，Ｚの３方向から三次元的に圧縮し
て密度ムラがきわめて小さい成形体を得ることができ
る。According to such a powder molding apparatus, the powder can be three-dimensionally compressed in three directions X, Y and Z which are orthogonal to each other to obtain a molded body having extremely small density unevenness.
【０００９】[0009]
【発明の実施の形態】図１の通り、マシンフレーム６内
に１対のＸ軸シリンダ７，８がピストン突出方向を同一
直線上に揃えて対面配置されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a pair of X-axis cylinders 7 and 8 are arranged face-to-face in a machine frame 6 with their piston projection directions aligned on the same straight line.
【００１０】このＸ軸シリンダ７，８の軸方向と直交す
る方向に１対のＹ軸シリンダ９，１０がピストン突出方
向を同一直線上に揃えて対面配置されている。Ｘ軸シリ
ンダ７，８及びＹ軸シリンダ９，１０の軸方向と直交す
る方向に１対のＺ軸シリンダ１１，１２がピストン突出
方向を同一直線上に揃えて対面配置されている。A pair of Y-axis cylinders 9 and 10 are arranged face-to-face in the direction orthogonal to the axial direction of the X-axis cylinders 7 and 8 with their piston projecting directions aligned on the same straight line. A pair of Z-axis cylinders 11 and 12 are arranged face-to-face in the direction orthogonal to the axial directions of the X-axis cylinders 7 and 8 and the Y-axis cylinders 9 and 10 with the piston projecting directions aligned on the same straight line.
【００１１】この実施の形態にあっては、Ｘ軸シリンダ
７，８及びＹ軸シリンダ９，１０の軸方向は水平方向と
なっており、Ｚ軸シリンダ１１，１２の軸方向は鉛直方
向となっている。In this embodiment, the axial directions of the X-axis cylinders 7 and 8 and the Y-axis cylinders 9 and 10 are horizontal, and the axial directions of the Z-axis cylinders 11 and 12 are vertical. ing.
【００１２】Ｘ軸シリンダ７，８のピストンロッドの先
端に左パンチ７ａ、右パンチ８ａが取り付けられ、Ｙ軸
シリンダ９，１０のピストンロッドの先端に前パンチ９
ａ、後パンチ１０ａが取り付けられ、Ｚ軸シリンダ１
１，１２のピストンロッドの先端に上パンチ１１ａ、下
パンチ１２ａが取り付けられている。The left punch 7a and the right punch 8a are attached to the tips of the piston rods of the X-axis cylinders 7 and 8, and the front punch 9 is attached to the tips of the piston rods of the Y-axis cylinders 9 and 10.
a, rear punch 10a is attached, and Z-axis cylinder 1
An upper punch 11a and a lower punch 12a are attached to the tips of the piston rods 1 and 12.
【００１３】上パンチ１１ａは左パンチ７ａ、右パンチ
８ａ、前パンチ９ａ及び後パンチ１０ａに被さってお
り、これらの左パンチ７ａ、右パンチ８ａ、前パンチ９
ａ及び後パンチ１０ａは上パンチ１１ａの下面に沿って
摺動自在となっていると共に、ダイ１４の上面に沿って
摺動自在となっている。The upper punch 11a covers the left punch 7a, the right punch 8a, the front punch 9a and the rear punch 10a. These left punch 7a, right punch 8a and front punch 9 are provided.
The a and the rear punches 10a are slidable along the lower surface of the upper punch 11a and also slidable along the upper surface of the die 14.
【００１４】下パンチ１２ａは芯金を兼ねている。この
下パンチ１２ａの上部は、左パンチ７ａ、右パンチ８
ａ、前パンチ９ａ及び後パンチ１０ａの間に挿入されて
いる。下パンチ１２ａの下部はダイ１４のパンチ挿入孔
１５に摺動自在に嵌合している。左パンチ７ａ、右パン
チ８ａ、前パンチ９ａ及び後パンチ１０ａ同士の間には
ゴム１３が介在されている。The lower punch 12a also serves as a core metal. The upper part of the lower punch 12a has a left punch 7a and a right punch 8a.
a, the front punch 9a and the rear punch 10a. The lower part of the lower punch 12a is slidably fitted in the punch insertion hole 15 of the die 14. A rubber 13 is interposed between the left punch 7a, the right punch 8a, the front punch 9a and the rear punch 10a.
【００１５】この粉体の成形装置を用いて成形する場
合、上パンチ１１ａを固定しておき、左パンチ７ａ、右
パンチ８ａ、前パンチ９ａ及び後パンチ１０ａを等速か
つ等圧にて接近方向に水平移動させると共に、これと同
時にこれらと同圧力にて下パンチ（芯金）１２ａを上昇
させる。下パンチ１２ａの上昇速度は左パンチ７ａ、右
パンチ８ａ、前パンチ９ａ及び後パンチ１０ａと同じで
あっても良く、異なっていても良い。When molding is performed using this powder molding apparatus, the upper punch 11a is fixed and the left punch 7a, the right punch 8a, the front punch 9a, and the rear punch 10a are approached at a constant speed and a constant pressure. At the same time, the lower punch (core bar) 12a is moved up with the same pressure. The rising speed of the lower punch 12a may be the same as or different from that of the left punch 7a, the right punch 8a, the front punch 9a and the rear punch 10a.
【００１６】前後、左右のシリンダ７〜１０の動きがバ
ラバラであると芯金１２ａに曲げモーメントが加わり装
置を損傷させたり、良好な成形体ができなかったりす
る。これを防止するために、シリンダの制御は、圧力の
ほかに対象となるシリンダ圧力の微差圧制御やミクロ位
置制御を加味する。If the movements of the front and rear, left and right cylinders 7 to 10 are not uniform, a bending moment is applied to the cored bar 12a, which damages the device or makes it impossible to form a good molded product. In order to prevent this, the control of the cylinder takes into consideration a fine differential pressure control of the target cylinder pressure and a micro position control in addition to the pressure.
【００１７】この実施の形態にあっては、図２のよう
に、前後、左右のパンチ７ａ〜１０ａのコーナー部同士
の間にゴム１３をはめ込み、圧縮したときにパンチ同士
が衝突しないように工夫してある。このゴム１３は、図
２のように、パンチ７ａ〜１０ａが前進したときに、成
形面がパンチ７ａ〜１０ａからゴム１３にかけて連続面
となるように材質、大きさが選定されている。ゴムの材
種、大きさ等は成形体の肉厚が決まれば容易に選定でき
る。In this embodiment, as shown in FIG. 2, the rubber 13 is fitted between the corners of the front and rear punches 7a to 10a so that the punches do not collide when compressed. I am doing it. As shown in FIG. 2, the material and size of the rubber 13 are selected so that the molding surface becomes a continuous surface from the punches 7a to 10a to the rubber 13 when the punches 7a to 10a move forward. The type and size of rubber can be easily selected if the thickness of the molded body is determined.
【００１８】成形後は、各シリンダー７〜１２をロッド
後退作動させ、成形体１６を取り出す。After the molding, the cylinders 7 to 12 are rod-retracted and the molded body 16 is taken out.
【００１９】[0019]
【発明の効果】本発明の粉体の成形装置によると、密度
ムラが極めて少ない成形体を得ることができる。この粉
体の成形装置は、大かがりな装置を必要とせず、また制
御も簡単である。According to the powder molding apparatus of the present invention, it is possible to obtain a molded product having extremely small density unevenness. This powder molding device does not require a large overburden device and is easy to control.
【図１】（ａ）図は実施の形態に係る粉体の成形装置の
縦断面図であり、（ｂ）図は（ａ）図のＢ−Ｂ線に沿う
断面図である。1A is a vertical cross-sectional view of a powder molding apparatus according to an embodiment, and FIG. 1B is a cross-sectional view taken along line BB in FIG.
【図２】図１の要部拡大図である。FIG. 2 is an enlarged view of a main part of FIG.
【図３】従来例を示す断面図である。FIG. 3 is a sectional view showing a conventional example.
３ 粉体 ５，１６ 成形体 ７，８ Ｘ軸シリンダ ９，１０ Ｙ軸シリンダ １１，１２ Ｚ軸シリンダ １３ ゴム 3 powder 5,16 molded body 7,8 X-axis cylinder 9,10 Y-axis cylinder 11,12 Z-axis cylinder 13 rubber
Claims (2)
粉体の成形装置において、 該パンチとして、粉体を互いに直交するＸ，Ｙ，Ｚの３
方向から押圧するように３対のパンチを備えたことを特
徴とする粉体の成形装置。1. A powder molding apparatus for molding powder by pressing it with a punch, wherein the punch comprises three X, Y, and Z orthogonal to each other.
A powder molding apparatus comprising three pairs of punches so as to be pressed from the directions.
される粉体の前後左右に配置された左パンチ、右パン
チ、前パンチ及び後パンチと、成形される粉体の上下に
配置された上パンチ及び下パンチとからなり、 該上パンチ及び下パンチの一方は該左パンチ、右パン
チ、前パンチ及び後パンチに被さっており、他方はこれ
ら左パンチ、右パンチ、前パンチ及び後パンチ同士の間
に挿入されており、 該一方のパンチを静止させておいて左パンチ、右パン
チ、前パンチ及び後パンチ該一方のパンチに摺動させな
がら接近方向に移動させ、且つ他方のパンチを該一方の
パンチに向かって移動させて容器形状の成形体を成形さ
せるようにしたことを特徴とする粉体の成形装置。2. The punch according to claim 1, wherein the punches are arranged above and below the powder to be molded, and a left punch, a right punch, a front punch and a rear punch, which are arranged in front, rear, left and right of the powder to be molded. An upper punch and a lower punch, one of the upper punch and the lower punch covers the left punch, the right punch, the front punch and the rear punch, and the other one of these left punch, the right punch, the front punch and the rear punch. The left punch, the right punch, the front punch and the rear punch are slid on one of the punches and moved in the approaching direction, and the other punch is inserted between the two punches. A powder molding apparatus characterized in that it is moved toward one of the punches to mold a container-shaped molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28734495A JPH09122995A (en) | 1995-11-06 | 1995-11-06 | Powder molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28734495A JPH09122995A (en) | 1995-11-06 | 1995-11-06 | Powder molding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09122995A true JPH09122995A (en) | 1997-05-13 |
Family
ID=17716164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28734495A Withdrawn JPH09122995A (en) | 1995-11-06 | 1995-11-06 | Powder molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09122995A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977760A (en) * | 2008-03-17 | 2011-02-16 | 奥斯瓦尔德股份公司 | Powder press for the manufacture of a metal powder compact |
| ITMO20130028A1 (en) * | 2013-02-08 | 2014-08-09 | Mec Ferretti Claudio S R L Off | PERFECTED MOLD FOR CERAMIC TILES. |
| CN108231311A (en) * | 2016-12-21 | 2018-06-29 | 中国科学院宁波材料技术与工程研究所 | Prepare device, neodymium iron boron magnetic body of neodymium iron boron magnetic body and preparation method thereof |
| CN110524684A (en) * | 2019-09-13 | 2019-12-03 | 武汉鹏森环境科技有限公司 | A kind of process units of the novel paving brick suitable for sponge city |
| CN112092147A (en) * | 2020-08-20 | 2020-12-18 | 浙江金州科技有限公司 | Avoid environmental protection brick production of card mould to use brick pressing device |
| JP2022511041A (en) * | 2018-12-07 | 2022-01-28 | インキューブ ラブス エルエルシー | Methods and equipment for producing micro tablets |
-
1995
- 1995-11-06 JP JP28734495A patent/JPH09122995A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977760A (en) * | 2008-03-17 | 2011-02-16 | 奥斯瓦尔德股份公司 | Powder press for the manufacture of a metal powder compact |
| ITMO20130028A1 (en) * | 2013-02-08 | 2014-08-09 | Mec Ferretti Claudio S R L Off | PERFECTED MOLD FOR CERAMIC TILES. |
| CN108231311A (en) * | 2016-12-21 | 2018-06-29 | 中国科学院宁波材料技术与工程研究所 | Prepare device, neodymium iron boron magnetic body of neodymium iron boron magnetic body and preparation method thereof |
| JP2022511041A (en) * | 2018-12-07 | 2022-01-28 | インキューブ ラブス エルエルシー | Methods and equipment for producing micro tablets |
| JP2024161047A (en) * | 2018-12-07 | 2024-11-15 | インキューブ ラブス エルエルシー | Method and apparatus for producing microtablets |
| US12171724B2 (en) | 2018-12-07 | 2024-12-24 | Incube Labs, Llc | Method and apparatus for manufacturing microtablets |
| CN110524684A (en) * | 2019-09-13 | 2019-12-03 | 武汉鹏森环境科技有限公司 | A kind of process units of the novel paving brick suitable for sponge city |
| CN112092147A (en) * | 2020-08-20 | 2020-12-18 | 浙江金州科技有限公司 | Avoid environmental protection brick production of card mould to use brick pressing device |
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| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030107 |