JPH01123703A - Raw material feeding device of powder molder - Google Patents
Raw material feeding device of powder molderInfo
- Publication number
- JPH01123703A JPH01123703A JP28109187A JP28109187A JPH01123703A JP H01123703 A JPH01123703 A JP H01123703A JP 28109187 A JP28109187 A JP 28109187A JP 28109187 A JP28109187 A JP 28109187A JP H01123703 A JPH01123703 A JP H01123703A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- charger
- box
- weight
- blenders
- 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.)
- Granted
Links
- 239000002994 raw material Substances 0.000 title claims abstract description 43
- 239000000843 powder Substances 0.000 title claims description 7
- 238000005303 weighing Methods 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 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
- 238000002474 experimental method Methods 0.000 description 2
- 238000005204 segregation Methods 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
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010586 diagram 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
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005060 molding of refractory 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)
Abstract
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、定員の原料
を投入する定量原料供給装置は、原料を均一、かつ、ゼ
クリゲーショ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 quantitative raw material supply device that inputs a certain amount of raw material automatically feeds the raw material uniformly and automatically into a mold without segregation, that is, separation of coarse particles and fine particles. It is widely used as a simple device that can be supplied. 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によりチャージャー
テーブル２上を往復動するチャージャーボックス７ａの
内部に回転軸９ａがチャージャーテーブル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、原料ホッパー２４から定量の原料Ａを受取り（
第９図）、金型２１のキャビティ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をキャビティ２２内に供給しく第１０
図）、再び原料ホッパー２４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って
重量誤差が大きくなる。更に、チャージャーボックス７
ａの後退時に、チャージャーボックス７ａ内に残った原
料で金型キャビティ２２の後側の部分Ｂが加圧されて密
度が大きくなり、重量のばらつきを付勢する。第１２図
は重量１５賭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２００Ｍ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 rotate in parallel and opposite directions to the charger table 2 are installed inside a charger box 7a that reciprocates on the charger table 2 by the air cylinder 5.
is installed to receive a fixed amount of raw material A from the raw material hopper 24 (
9), the blenders 10a, 10a are conveyed onto the cavity 22 of the mold 21, and the lower punch 23 is lowered.
10 to feed the raw material A into the cavity 22 by rotating the
(Fig. 11), it retreats back to the raw material hopper 24 and receives the raw material A (Fig. 11). However, in this device, it is difficult to mix raw materials with a large difference in specific gravity, such as graphite and magnesia. In this case, air is trapped by the rotation of the blenders 10a, 10a, making the bulk density unstable and increasing the weight error. Furthermore, charger box 7
At the time of retreat of a, the raw material remaining in the charger box 7a pressurizes the rear part B of the mold cavity 22, increasing the density and biasing the variation in weight. Figure 12 shows the measurement results of the product weight when molding bricks with a weight of 15%, and shows that there is a large variation of +/-200M against the target value of +/-100g.
また、第１図眸示ず本発明の秤量手段であるロードセル
１８を備えた計量ホッパー１７で原料を正確に計量し、
図示しない投入ホッパーを介して金型キャビティに投入
する、いわゆる重量秤量式の装置が知られている。しか
し、二定の高さから投入するので金型キャビティ２２内
に均一に入らない、原料のセグリゼーション、手ならし
の必要がある等の問題がある。In addition, the raw material is accurately weighed by a weighing hopper 17 equipped with a load cell 18 (not shown in FIG. 1), which is a weighing means of the present invention.
A so-called gravimetric weighing type device is known in which material is charged into a mold cavity via a charging hopper (not shown). However, since the material is charged from a fixed height, there are problems such as the material not entering the mold cavity 22 uniformly, the need for segregation of the raw material, and the need for hand conditioning.
［発明の目的］
従って本発明の目的は、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、チャージャーテーブル上
を往復動するチャージャーボックスの内部に回転軸がチ
ャージャ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ャージャーボ
ッ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 provided inside a charger box that reciprocates on a charger table and is perpendicular to the charger table. A plurality of variable speed stirring blades are provided, 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］
従って、秤量手段から供給された定重量の原料をチャー
ジャーボックス内でかき回し羽根により好適に撹拌し、
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、ボール状塊による不拘質重Ｉ誤差を減少させるこ
とができる。[Operations and Effects of the Invention] Therefore, a constant weight of the raw material supplied from the weighing means is suitably stirred by the stirring blade in the charger box,
In addition, since the material is pushed into the mold from multiple directions, the quality of the product 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 and the unrestrained weight I error due to the ball-like lumps can be reduced.
［好ましい実施の態様］
本発明の実施に際し、チャージャーボックスの往復動に
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、撹拌効果と押し込み効果を向上することができる。When 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 is bent toward the downstream side in the rotational direction.This will improve the stirring effect. 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ッパーを用い
るのが好ましい。When carrying out the present invention, the weighing means is equipped with a load cell,
Preferably, a known weighing hopper with double doors at the bottom is used.
本発明の実施に際し、計量ホッパーによるチャージャー
ボックスへの供給重量は、製品重量に対し金型投入時の
ヘッ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 supplied to the charger box by the weighing hopper is determined by adding the weight that will become the head at the time of injection into the mold to the product weight, and is determined by experiment to be optimal depending on the raw material within a range of 1.5 to 3 times. Preferably, a value is selected.
本発明の実施に際し、チャージャーボックスに供給され
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 practicing the invention, it is preferred to include a conventional level sensor for checking the level of raw material supplied to the charger box.
〔実施例］ 以下図面を参照して本発明の詳細な説明する。〔Example] The present invention will be described in detail 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ャージャ
ーテーブル２と、そのチャージャーテーブル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ャージャ
ーボックス７と、秤量手段である計量ホッパー１７と、
フィーダ２゜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, is
A charger table 2 provided in contact with the horizontal upper surface of a mold 21, a charger box 7 driven by a known air cylinder 5 to move back and forth on the charger table 2, and a weighing hopper 17 serving as a weighing means. and,
It consists of a feeder 2°.
第２図ないし第４図において、チャージャーテーブル（
以下テーブルという）２には金型２１のキャビデイ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, the charger table (
(hereinafter referred to as table) 2 has a cavity 22 of the mold 21.
A rectangular elongated hole 3 is formed to face directly, and guide rails 4.4 are erected in the left-right direction.
チャージャーボックス（以下ボックスという）７は水平
断面が長孔３を大きく囲み、かっガイドレール４．４に
案内されるようなまゆ玉状に形成され、上部はホッパー
状に外開きに形成され、下部の後側はエアシリンダ５の
ピストンロッド６に連結されている。このボックス７の
中央から若干下方には左右に隙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には回転軸９が
テーブル２に垂直な複数（図示の例では２個）のブレン
ダー１０．１０がアーム１１．１１を介して設けられて
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、その外端縁はボックス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。従って、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。The charger box (hereinafter referred to as the box) 7 has a horizontal cross section that largely surrounds the long hole 3 and is shaped like a cocoon to be guided by the guide rail 4.4, with the upper part opening outward like a hopper, and the lower part being shaped like a hopper. The rear side is connected to the piston rod 6 of the air cylinder 5. A base plate 8 is horizontally stretched slightly downward from the center of the box 7 with a gap left and right, and a plurality of (two in the illustrated example) blenders are mounted on the plate 8, with a rotating shaft 9 perpendicular to the table 2. 10.10 is provided via an arm 11.11. The horizontal section of this blender 10 is formed into an arc shape with a concave downstream side in the direction of rotation, and the outer edge of the blender 10 is shaped like a box 7.
It slides against the cocoon-shaped inner wall and rotates in opposite directions as shown by the arrows, and its lower edge is bent toward the downstream side in the direction of rotation. Opposing sides of the blender 10.10 are therefore out of phase so that the 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
ギヤボックス１２が設けられ２、そのギヤボックス１２
には、ボックス７の後方に突設されたブラケット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にはボックス７内の原料のレベ
ルを検出する公知のレベルスイッチ１５が設けられてい
る。A gear box 12 to which a rotating shaft 9.9 is connected is provided on the base plate 8, and the gear box 12
An output shaft of a variable speed motor 14, such as a known air motor, hydraulic motor, or inverter motor, is connected to a bracket 13 projecting from the rear of the box 7. Further, the plate 8 is provided with a known level switch 15 for detecting the level of the raw material in the box 7.
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の両側縁から立上って三角
形状にボックス７の上縁で閉じるカバー１６で覆われて
いる。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、計量ホッパー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、フィ
ーダー２０には公知のベルトコンベアが用いられている
。なお、この装置１は第４図に鎖線で示すように平面が
長方形の成形品２個、あるいは−点鎖線で示すように正
方形の製品３１１１に同時に原料を供給できるようにな
っている。In FIG. 1, the weighing hopper 17 has a load cell 18.
．． 18, and the lower opening is provided with a door 19, 19 that opens back and forth as shown by the chain line. A known belt conveyor is used as the feeder 20. The apparatus 1 is capable of simultaneously supplying raw materials to two molded products each having a rectangular plane as shown by the dashed line in FIG. 4, or to a square product 3111 as shown by the dashed line.
稼動に際し、フィーダー２０により搬送され原料Ａを計
量ホッパー１７でロードセル１８．１８により正確に重
量を計量し、ドア１９を開いてボックス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
ッ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
ベルスイッチ１５により、供給量の過多、過少をチエツ
クする。During operation, the raw material A conveyed by the feeder 20 is accurately weighed by the load cell 18. (Fig. 1).At this time, add the weight of the head at the time of feeding to the weight of the molded product, and select the optimum value by experiment according to the raw material and weigh it in the range of 1.5 to 3 times. The level switch 15 is used to check whether the supply amount is 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を伸長してボックス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 blender 10.10 at a 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 stops (FIG. 5).
次いで、下部パンチ２３を下降させ原料をブレンダ−１
０，１０で撹拌しながらキャビティ２２に投入する（第
６図）、従って、原料はブレンダ−１０，１０により撹
拌され、キャビティ２２に押え込まれるので均質かつ重
量誤差が小さくなる。Next, the lower punch 23 is lowered and the raw material is transferred to the blender 1.
The raw material is poured into the cavity 22 while being stirred at 0.0.
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１００「の中に余裕をもっ
て収まるように小さいばらつきとなる。As a result, as shown in FIG. 8, the variation in weight is small and is so small as to fall comfortably within the target value plus or minus 100".
次いで、エアシリンダ５を収縮してボックス７を計量ホ
ッパー１７の直下に後退し、再び原料を供給しく第７図
）、金型２１を紙面直角方向に１ピツチ移動する。この
際、ボックス７内に残った原料はブレンダー１０．１０
で撹拌されるので、キャビティ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 −リ、重量がばらつくことが防止される。Next, the air cylinder 5 is contracted to move the box 7 directly below the weighing hopper 17, and the raw material is supplied again (FIG. 7), and the mold 21 is moved one pitch in the direction perpendicular to the plane of the paper. At this time, the raw materials remaining in box 7 are transferred to blender 10.10.
Since only the rear portion B of the cavity 22 is not pressed, the density of only that portion B is prevented from increasing and the weight is prevented from varying.
［まとめ］
以上説明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撹拌し、金型
キャビティ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
の稼動を無人化、高速化することができる。[Summary] As explained 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, thereby homogenizing the product and reducing the weight. Errors can be reduced, and the powder compacting machine can be operated unmanned and at high speed.
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
ャージャーテーブル ５・・・エアシリンダ ７・
・・チャージャーボ・シクス ９・・・回転軸 １
０・・・ブレンダー １４・・・可変速モータ −
７・・・計量ホッパー１８・・・ロードセル ２０・
・・フィーダー ２１・・・金型 ２２・・・キャ
ビティ
第１ｇＪ
フＯ
第５図
と二１１７
第３図
第 ６ 悶
Ｌフ、、−１７
第７図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, Fig. 5,
6 and 7 are side sectional views showing the process, FIG. 8 is a diagram showing a product weight measuring device to explain the effects of the present invention, and FIGS. 9, 10, and 11 are conventional views, respectively. FIG. 12, a side sectional view showing the steps of the apparatus, 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 Bo Six 9...Rotation axis 1
0...Blender 14...Variable speed motor -
7...Weighing hopper 18...Load cell 20.
...Feeder 21...Mold 22...Cavity 1st gJ FuO Fig. 5 and 2117 Fig. 3 Fig. 6 Agony Lf, -17 Fig. 7
Claims (1)
置において、チャージャーテーブル上を往復動するチャ
ージャーボックスの内部に回転軸がチャージャーテーブ
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ャージャーボックスに定重量の
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。In a raw material supply device that feeds a fixed amount of raw material into a mold of a powder molding machine, a charger box that reciprocates on a charger table is provided with a plurality of variable speed stirring blades whose rotating shafts are perpendicular to the charger table, and A raw material supply device for a powder molding machine, characterized in that 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 true JPH01123703A (en) | 1989-05-16 |
| JPH0576881B2 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) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0369311A (en) * | 1989-08-10 | 1991-03-25 | Mitsuishi Fukai Tekkosho:Kk | Weighing type raw material feed 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 |
| WO2001049470A1 (en) * | 1998-07-21 | 2001-07-12 | Kabushikikaisha Mitsuishi Fukai Tekkosho | Raw material feeder for firebrick making machines |
| EP3042746A1 (en) * | 2014-11-25 | 2016-07-13 | Harald Winkler | Device and method for filling mineral mixtures into a mold frame of a compressing device |
| JP2017020294A (en) * | 2015-07-14 | 2017-01-26 | 東急建設株式会社 | Quantitative supply device and quantitative 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0369311A (en) * | 1989-08-10 | 1991-03-25 | Mitsuishi Fukai Tekkosho:Kk | Weighing type raw material feed 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 |
| WO2001049470A1 (en) * | 1998-07-21 | 2001-07-12 | Kabushikikaisha Mitsuishi Fukai Tekkosho | Raw material feeder for firebrick making machines |
| EP3042746A1 (en) * | 2014-11-25 | 2016-07-13 | Harald Winkler | Device and method for filling mineral mixtures into a mold frame of a compressing device |
| JP2017020294A (en) * | 2015-07-14 | 2017-01-26 | 東急建設株式会社 | Quantitative supply device and quantitative supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0576881B2 (en) | 1993-10-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |