JPH0576881B2 - - Google Patents
Info
- Publication number
- JPH0576881B2 JPH0576881B2 JP62281091A JP28109187A JPH0576881B2 JP H0576881 B2 JPH0576881 B2 JP H0576881B2 JP 62281091 A JP62281091 A JP 62281091A JP 28109187 A JP28109187 A JP 28109187A JP H0576881 B2 JPH0576881 B2 JP H0576881B2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- charger
- box
- weight
- mold
- 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 - Fee Related
Links
- 239000002994 raw material Substances 0.000 claims description 42
- 238000005303 weighing Methods 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005060 molding of refractory Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/0235—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being provided with agitating means, e.g. stirring vanes to avoid premature setting of the moulding material
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)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、粉末成形機の金型中に定量の原料を
投入する原料供給装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a raw material supply device for feeding a fixed amount of raw material into a mold of a powder molding machine.
［従来技術］
例えば、主として耐火煉瓦の成形において、定
量の原料を投入する定量原料供給装置は、原料を
均一、かつ、ゼクリゲーシヨンすなわち粗粒と細
粒の分離なく自動的に金型内に供給できる簡易な
装置として広く使用されている。しかし、この装
置で供給された金型内の原料重量は、配合原料や
バインダーの種類等によりかなり大きくばらつく
という問題がある。[Prior art] For example, in the molding of refractory bricks, a metered raw material supply device that inputs a fixed amount of raw material can uniformly and automatically supply the raw material into the mold without segregation, that is, separation of coarse particles and fine particles. It is widely used as a simple device. However, there is a problem in that the weight of the raw material supplied into the mold by this device varies considerably depending on the type of blended raw materials, binder, etc.
これに対し、第９図ないし第１１図に示すよう
なかき回し羽根いわゆるブレンダー１０ａを備え
たものが知られている。すなわち、エアシリンダ
５によりチヤージヤーテーブル２上を往復動する
チヤージヤーボツクス７ａの内部に回転軸９ａが
チヤージヤーテーブル２に平行で対向する方向に
回転する２個のブレンダー１０ａ，１０ａを設
け、原料ホツパー２４から定量の原料Ａを受取り
（第９図）、金型２１のキヤビテイ２２上に搬送
し、下部パンチ２３を下降させながらブレンダー
１０ａ，１０ａを回転して原料Ａをキヤビテイ２
２内に供給し（第１０図）、再び原料ホツパー２
４の所に後退し原料Ａを受取る（第１１図）よう
にしたものである。しかし、この装置では、例え
ば黒鉛質物とマグネシアのように比重差の大きい
原料の配合の場合、ブレンダー１０ａ，１０ａの
回転によりエアをかみ込んでかさ密度が不安定と
なつて重量誤差が大きくなる。さらに、チヤージ
ヤボツクス７ａが第１０図に示す供給位置から第
１１図に示す原料受取り位置に戻るときに、チヤ
ージヤボツクス７ａ内の原料が金型キヤビテイ２
２内の原料を加圧するが、さらにチヤージヤボツ
クス７ａの前記の戻り行程時の運動エネルギが第
１１図において点線で囲んだ符号Ｂの部分を加圧
するので、この部分の密度が他の部分の密度より
大となる傾向があり、これが原因となつて製品の
重量がばらついてしまう。第１２図は重量15Kgの
煉瓦を成形した場合の製品重量の測定結果で、プ
ラス・マイナス100ｇの目標値に対しプラス・マ
イナス200ｇとばらつきが大きいことを示してい
る。 On the other hand, a device equipped with stirring blades, so-called blenders 10a, as shown in FIGS. 9 to 11 is known. That is, two blenders 10a, 10a whose rotary shafts 9a are parallel to and rotate in opposite directions to the charger table 2 are placed inside a charger box 7a that reciprocates on the charger table 2 by the air cylinder 5. A fixed amount of raw material A is received from the raw material hopper 24 (FIG. 9), and conveyed onto the cavity 22 of the mold 21, and while lowering the lower punch 23, the blenders 10a and 10a are rotated to transfer the raw material A to the cavity 2.
2 (Fig. 10), and again into the raw material hopper 2.
4 and receives raw material A (Fig. 11). However, in this apparatus, when blending raw materials with a large difference in specific gravity, such as graphite and magnesia, the rotation of the blenders 10a, 10a entrains air, making the bulk density unstable and increasing weight errors. Furthermore, when the charger box 7a returns from the supply position shown in FIG. 10 to the raw material receiving position shown in FIG.
Furthermore, the kinetic energy during the return stroke of the charger box 7a pressurizes the part marked B surrounded by a dotted line in Fig. 11, so that the density of this part is lower than that of other parts. It tends to be larger than the density, which causes the weight of the product to vary. Figure 12 shows the measurement results of the product weight when molding bricks weighing 15 kg, and shows that there is a large variation of +/-200 g compared to the target value of +/-100 g.
また、第１図に示す本発明の秤量手段であるロ
ードセル１８を備えた計量ホツパー１７で原料を
正確に計量し、図示しない投入ホツパーを介して
金型キヤビテイに投入する、いわゆる重量秤量式
の装置が知られている。しかし、一定の高さから
投入するので金型キヤビテイ２２内に均一に入ら
ない、原料のセグリゼーシヨン、手ならしの必要
がある等の問題がある。 In addition, a so-called gravimetric weighing type device is used, in which the raw material is accurately weighed by a weighing hopper 17 equipped with a load cell 18, which is a weighing means of the present invention, shown in FIG. It has been known. However, since the raw material is charged from a certain height, there are problems such as the raw material is not uniformly filled into the mold cavity 22, and the raw material needs to be segregated and prepared by hand.
［発明の目的］
従つて本発明の目的は、均質で重量誤差の少な
い製品が得られる粉末成形機の原料供給装置を提
供するにある。[Object of the Invention] Accordingly, an object of the present invention is to provide a raw material supply device for a powder molding machine that can produce a homogeneous product with little weight error.
［発明の構成］
本発明によれば、粉末成形機の金型中に定量の
原料を投入する原料供給装置において、チヤージ
ヤーテーブル上を往復動するチヤージヤーボツク
スの内部に回転軸がチヤージヤーテーブルに垂直
な複数の可変速なかき回し羽根を設けるととも
に、所定位置においてチヤージヤーボツクスに定
重量の原料を供給する秤量手段を設けている。[Structure of the Invention] According to the present invention, in a raw material supply device that feeds a fixed amount of raw material into a mold of a powder molding machine, a rotating shaft is installed inside a charger box that reciprocates on a charger table. A plurality of variable speed stirring blades are provided perpendicular to the charger table, and a weighing means is provided at a predetermined position to supply a constant weight of raw material to the charger box.
［発明の作用効果］
従つて、秤量手段から供給された定重量の原料
をチヤージヤーボツクス内でかき回し羽根により
好適に攪拌し、かつ、金型内に多方向からかき込
んで投入するので、製品の品質を均一にし、重量
誤差を小さくすることができる。また、原料中に
ボール状塊がある場合に相当程度解砕し、ボール
状解による不均質重量誤差を減少させることがで
きる。[Operations and Effects of the Invention] Therefore, the constant weight of the raw material supplied from the weighing means is suitably stirred by the stirring blades in the charger box, and the raw material is scraped into the mold from multiple directions. Product quality can be made uniform and weight errors can be reduced. In addition, if there are ball-like lumps in the raw material, they can be crushed to a considerable extent to reduce heterogeneous weight errors due to ball-like lumps.
［好ましい実施の態様］
本発明の実施に際し、チヤージヤーボツクスの
往復動には、例えば公知のエアシリンダを用いる
のが好ましい。[Preferred Embodiment] When carrying out the present invention, it is preferable to use, for example, a known air cylinder for reciprocating the charger box.
本発明の実施に際し、かき回し羽根は回転方向
後流側が凹となる円弧状に形成し、更に、下端が
回転方向後流側に曲がるように形成するのが好ま
しい。このようにすると、攪拌効果と押し込み効
果を向上することができる。 In carrying out the present invention, it is preferable that the stirring blade is formed in an arc shape with a concave downstream side in the rotational direction, and further formed so that the lower end thereof is bent toward the downstream side in the rotational direction. In this way, the stirring effect and the pushing effect can be improved.
本発明の実施に際し、かき回り羽根の回転駆動
には、公知のエアモータ、油圧モータまたはイン
バータモータ等の可変速モータを用いるのが好ま
しい。 In carrying out the present invention, it is preferable to use a known variable speed motor such as an air motor, hydraulic motor, or inverter motor to rotationally drive the stirring blades.
本発明の実施に際し、秤量手段にはロードセル
を備え、下部に両開きのドアを設けた公知の計量
ホツパーを用いるのが好ましい。 In carrying out the present invention, it is preferable to use a known weighing hopper equipped with a load cell and a double door at the bottom as the weighing means.
本発明の実施に際し、計量ホツパーによるチヤ
ージヤーボツクスへの供給重量は、製品重量に対
し金型投入時のヘツドとなる重量を加算し、1.5
ないし３倍の範囲で原料に合せて実験により最適
値を選択するのが好ましい。 When implementing the present invention, the weight fed to the charger box by the weighing hopper is calculated by adding the weight of the head when feeding into the mold to the product weight, which is 1.5
It is preferable to select the optimum value by experiment, depending on the raw material, within a range of 3 to 3 times.
本発明の実施に際し、チヤージヤーボツクスに
供給された原料のレベルをチエツクする公知のレ
ベルセンサを設けるのが好ましい。 In the practice of this invention, it is preferred to include a conventional level sensor for checking the level of material fed to the charger box.
［実施例］
以下図面を参照して本発明の実施例を説明す
る。[Examples] Examples of the present invention will be described below with reference to the drawings.
第１図において、全体を符号１で示す原料供給
装置は、金型２１の水平な上面に当接して設けら
れたチヤージヤーテーブル２と、そのチヤージヤ
ーテーブル２上を公知のエアシリンダ５に駆動さ
れて前後進されるチヤージヤーボツクス７と、秤
量手段である計量ホツパー１７と、フイーダ２０
とから構成されている。 In FIG. 1, the raw material supply device, which is designated as a whole by reference numeral 1, includes a charger table 2 provided in contact with the horizontal upper surface of a mold 21, and a known air cylinder 5 that moves the charger table 2 over the charger table 2. A charger box 7 that is driven to move back and forth, a weighing hopper 17 serving as a weighing means, and a feeder 20.
It is composed of.
第２図ないし第４図において、チヤージヤーテ
ーブル（以下テーブルという）２には金型２１の
キヤビテイ２２に正対する長方形の長孔３が形成
され、左右方向にはガイドレール４，４が立設さ
れている。 In Figures 2 to 4, a charger table (hereinafter referred to as table) 2 has a rectangular long hole 3 that directly faces the cavity 22 of the mold 21, and guide rails 4, 4 stand in the left and right direction. It is set up.
チヤージヤーボツクス（以下ボツクスという）
７は水平断面が長孔３を大きく囲み、かつガイド
レール４，４に案内されるようなまゆ玉状に形成
され、上部はホツパー状に外開きに形成され、下
部の後側はエアシリンダ５のピストンロツド６に
連結されている。このボツクス７の中央から若干
下方には左右に〓間を設けてベースプレート８が
水平に張設され、そのプレート８からテーブル２
に対して垂直方向下方に複数（図示の例では２
本）の回転軸９が延びており、そして各回転軸９
にはアーム１１を介してブレンダー１０が取付け
られている。このブレンダー１０の水平断面は回
転方向後流側が凹となる円弧状に形成され、その
外端縁はボツクス７のまゆ玉状の内壁に摺接して
矢印に示すように対向する方向に回転し、下端縁
は回転方向後流側に曲げられている。従つて、ブ
レンダー１０，１０の対向する側は回転面が交わ
るように位相がずらされている。 Charger Box (hereinafter referred to as Box)
7 has a horizontal cross section that largely surrounds the elongated hole 3 and is formed in the shape of a cocoon to be guided by the guide rails 4, 4, the upper part is formed to open outward in a hopper shape, and the rear side of the lower part is an air cylinder 5. The piston rod 6 is connected to the piston rod 6. A base plate 8 is horizontally stretched slightly downward from the center of the box 7 with a gap left and right, and the table 2 is connected to the base plate 8.
In the illustrated example, there are multiple
The rotating shafts 9 of the book) extend, and each rotating shaft 9
A blender 10 is attached to the machine via an arm 11. The horizontal section of this blender 10 is formed in an arc shape with a concave downstream side in the direction of rotation, and its outer edge slides against the cocoon-shaped inner wall of the box 7 and rotates in the opposite direction as shown by the arrow. The lower edge is bent toward the downstream side in the rotational direction. Therefore, the opposing sides of the blenders 10, 10 are shifted in phase so that their planes of rotation intersect.
前記ベースプレート８上には回転軸９，９が連
結されたギヤボツクス１２が設けられ、そのギヤ
ボツクス１２には、ボツクス７の後方に突設され
たブラケツト１３に設けられた公知のエアモー
タ、油圧モータまたはインバータモータ等の可変
速モータ１４の出力軸が連結されている。また、
プレート８にはボツクス７内の原料のレベルを検
出する公知のレベルスイツチ１５が設けられてい
る。そして、ベースプレート８およびその上に設
けられたものはすべてベースプレート８の両側縁
から立上つて三角形状にボツクス７の上縁で閉じ
るカバー１６で覆われている。 A gear box 12 to which rotating shafts 9, 9 are connected is provided on the base plate 8, and the gear box 12 is equipped with a known air motor, hydraulic motor, or inverter mounted on a bracket 13 protruding from the rear of the box 7. An output shaft of a variable speed motor 14 such as a motor is connected. Also,
The plate 8 is provided with a known level switch 15 for detecting the level of raw material in the box 7. The base plate 8 and everything provided thereon are covered with covers 16 that rise from both side edges of the base plate 8 and close at the upper edge of the box 7 in a triangular shape.
第１図において、計量ホツパー１７にはロード
セル１８，１８が設けられ、下部開口には鎖線で
示すように前後に開くドア１９，１９が設けられ
ている。そして、フイーダー２０には公知のベル
トコンベアが用いられている。 In FIG. 1, the weighing hopper 17 is provided with load cells 18, 18, and its lower opening is provided with doors 19, 19 that open back and forth as shown by chain lines. A known belt conveyor is used for the feeder 20.
移動に際し、フイーダー２０により搬送され原
料Ａを計量ホツパー１７でロードセル１８，１８
により正確に重量を計量し、ドア１９を開いてボ
ツクス７に第３図に示す矢印で示すように、カバ
ー１６にガイドさせて供給する（第１図）。この
際、成形物重量に対して投入時のヘツドとなる重
量を加算し1.5ないし３倍の範囲で原料に合せ実
験により最適値を選択して計量供給し、更にレベ
ルスイツチ１５により、供給量の過多、過少をチ
エツクする。 During the movement, the raw material A conveyed by the feeder 20 is placed in the load cells 18, 18 by the weighing hopper 17.
The weight is more accurately measured, the door 19 is opened, and the product is fed into the box 7 by being guided by the cover 16 as shown by the arrow in FIG. 3 (FIG. 1). At this time, the weight that will be the head at the time of feeding is added to the weight of the molded product, and the optimal value is selected through experimentation according to the raw material in the range of 1.5 to 3 times, and then the feed amount is adjusted using the level switch 15. Check for too much or too little.
次いで、ブレンダー１０，１０を低速で回転し
ながらエアシリンダ５を伸長してボツクス７をテ
ーブル２の長孔３に正対する所まで前進して停止
する（第５図）。 Next, while rotating the blenders 10, 10 at low speed, the air cylinder 5 is extended to move the box 7 forward until it directly faces the elongated hole 3 of the table 2, and then stopped (FIG. 5).
次いで、下部パンチ２３を下降させ原料をブレ
ンダー１０，１０で攪拌しながらキヤビテイ２２
に投入する（第６図）。従つて、原料はブレンダ
ー１０，１０により攪拌され、キヤビテイ２２に
押え込まれるので均質かつ重量誤差が小さくな
る。その結果、第８図に示すように、重量のばら
つきは小さく、目標値プラス・マイナス100ｇの
中に余裕をもつて収まるように小さいばらつきと
なる。 Next, the lower punch 23 is lowered and the raw material is stirred by the blenders 10, 10 while the cavity 22 is moved down.
(Figure 6). Therefore, the raw materials are stirred by the blenders 10, 10 and pressed into the cavity 22, so that the raw materials are homogeneous and the weight error is small. As a result, as shown in FIG. 8, the variation in weight is small and falls within the target value plus or minus 100 g with a margin.
次いで、エアシリンダ５を収縮してボツクス７
を計量ホツパー１７の直下に後退し、再び原料を
供給し（第７図）、金型２１を紙面直角方向に１
ピツチ移動する。この際、ボツクス７内に残つた
原料はブレンダー１０，１０で攪拌されるので、
キヤビテイ２２の後側部分Ｂだけが押圧されるこ
とがないので、その部分Ｂだけの密度が大きくな
り、重量がばらつくことが防止される。 Next, the air cylinder 5 is deflated to open the box 7.
The mold 21 is moved back to just below the weighing hopper 17, the raw material is supplied again (Fig. 7), and the mold 21 is moved in the direction perpendicular to the paper.
Move in a pinch. At this time, the raw materials remaining in the box 7 are stirred by the blenders 10, 10, so
Since only the rear portion B of the cavity 22 is not pressed, the density of only that portion B increases and the weight is prevented from varying.
［まとめ］
以上設滅したように本発明によれば、垂直な回
転軸回りに回転する複数のブレンダーにより原料
を攪拌し、金型キヤビテイ内に押え込むように投
入するので、製品を均質化し、重量誤差を小さく
することができ、粉末成形機の稼働を無人化、高
速化することができる。[Summary] As described above, according to the present invention, the raw materials are stirred by a plurality of blenders rotating around a vertical axis of rotation, and are pressed into the mold cavity, so that the product is homogenized. Weight errors can be reduced, and the operation of the powder molding machine can be automated and speeded up.
第１図は本発明の一実施例を示す側断面図、第
２図は第１図の要部の拡大図、第３図は第２図の
Ｘ−Ｘ線矢視断面図、第４図は第２図のＹ−Ｙ線
矢視断面図、第５図、第６図および第７図はそれ
ぞれ工程を示す側断面図、第８図は本発明の効果
を説明する製品重量の測定装置を示す図、第９
図、第１０図および第１１図はそれぞれ従来装置
の工程を示す側断面図、第１２図はその従来装置
による第８図に相当する図面である。
Ａ……原料、１……原料供給装置、２……チヤ
ージヤーテーブル、５……エアシリンダ、７……
チヤージヤーボツクス、９……回転軸、１０……
ブレンダー、１４……可変速モータ、１７……計
量ホツパー、１８……ロードセル、２０……フイ
ーダー、２１……金型、２２……キヤビテイ。
Fig. 1 is a side sectional view showing one embodiment of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is a sectional view taken along the line X--X of Fig. 2, and Fig. 4 is a sectional view taken along the Y-Y line in FIG. 2, FIGS. 5, 6, and 7 are side sectional views showing the respective steps, and FIG. 8 is a product weight measuring device for explaining the effects of the present invention. Figure 9 showing
10 and 11 are side sectional views showing the steps of the conventional apparatus, respectively, and FIG. 12 is a drawing corresponding to FIG. 8 of the conventional apparatus. A... Raw material, 1... Raw material supply device, 2... Charger table, 5... Air cylinder, 7...
Charger box, 9... Rotating shaft, 10...
blender, 14... variable speed motor, 17... weighing hopper, 18... load cell, 20... feeder, 21... mold, 22... cavity.
Claims (1)
原料供給装置において、チヤージヤーテーブル上
を往復動するチヤージヤーボツクスの内部に回転
軸がチヤージヤーテーブルに垂直な複数の可変速
なかき回し羽根を設けるとともに、所定位置にお
いてチヤージヤーボツクスに定重量の原料を供給
する秤量手段を設けたことを特徴とする粉末成形
機の原料供給装置。1. In a raw material supply device that feeds a fixed amount of raw material into the mold of a powder molding machine, a charger box that reciprocates on a charger table has multiple variable speed rotary shafts perpendicular to the charger table. 1. A raw material supply device for a powder molding machine, characterized in that a stirring blade is provided, and a weighing means for supplying a constant weight of raw material to a charger box at a predetermined position is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28109187A JPH01123703A (en) | 1987-11-09 | 1987-11-09 | Raw material feeding device of powder molder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28109187A JPH01123703A (en) | 1987-11-09 | 1987-11-09 | Raw material feeding device of powder molder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01123703A JPH01123703A (en) | 1989-05-16 |
| JPH0576881B2 true JPH0576881B2 (en) | 1993-10-25 |
Family
ID=17634210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28109187A Granted JPH01123703A (en) | 1987-11-09 | 1987-11-09 | Raw material feeding device of powder molder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01123703A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0637047B2 (en) * | 1989-08-10 | 1994-05-18 | 株式会社三石深井鐵工所 | Weighing type raw material supply device of powder molding machine |
| JPH0431007A (en) * | 1990-05-29 | 1992-02-03 | Mitsuishi Fukai Tekkosho:Kk | Feeder of powder molding machine |
| JPH0485003A (en) * | 1990-07-27 | 1992-03-18 | Ngk Insulators Ltd | Molding method for multi-layer block |
| EP1260335A1 (en) * | 2000-01-07 | 2002-11-27 | Kabushiki Kaisha Mitsuishi Fukai Tekkosho | Raw material feeder for firebrick making machines |
| DE202014009322U1 (en) * | 2014-11-25 | 2016-03-17 | Harald Winkler | Device for filling mineral mixtures in a molding frame of a compacting device |
| JP6321587B2 (en) * | 2015-07-14 | 2018-05-09 | 東急建設株式会社 | Fixed quantity supply system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228456A (en) * | 1975-08-29 | 1977-03-03 | Taiho Kogyo Co Ltd | Method of making semicircular washers |
-
1987
- 1987-11-09 JP JP28109187A patent/JPH01123703A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228456A (en) * | 1975-08-29 | 1977-03-03 | Taiho Kogyo Co Ltd | Method of making semicircular washers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01123703A (en) | 1989-05-16 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |