JP5766340B1 - Raw material supply equipment - Google Patents
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- JP5766340B1 JP5766340B1 JP2014173275A JP2014173275A JP5766340B1 JP 5766340 B1 JP5766340 B1 JP 5766340B1 JP 2014173275 A JP2014173275 A JP 2014173275A JP 2014173275 A JP2014173275 A JP 2014173275A JP 5766340 B1 JP5766340 B1 JP 5766340B1
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- 239000002994 raw material Substances 0.000 title claims abstract description 385
- 239000000463 material Substances 0.000 claims abstract description 78
- 238000002156 mixing Methods 0.000 claims abstract description 71
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 238000005304 joining Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 description 17
- 238000001125 extrusion Methods 0.000 description 15
- 238000005520 cutting process Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 230000001364 causal effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
【課題】巻き込みの困難な副原料も正確に主原料に巻き込んでいけるような原料供給装置の提供【解決手段】主原料Ｍのための主原料通路１３と、副原料Ｎのための副原料通路２３とを二叉状に合流させ、主原料通路１３及び副原料通路２３を各原料Ｍ、Ｎが自重で流下可能な下り勾配に設定され、原料導入路５を介して成形機Ａへ自重で流下させ主原料通路１３における下流端開口１３ａ付近に下流端開口の上部から下方に向かって邪魔板１５を垂設され、少なくとも邪魔板１５の側辺１５ｂと下流端開口１３ａとの間に主原料通過空間Ｓを形成され、邪魔板１５に向かって原料Ｍ、Ｎを押し込むように回転するミキシングスクリュー９を邪魔板１５の下端１５ｃの直下に配設され、ミキシングスクリュー９は邪魔板１５側に向って下り傾斜で且つ平面視で邪魔板１５に立体交差するように配設されている原料供給装置。【選択図】図１Provided is a raw material supply device that can accurately entrain a secondary raw material that is difficult to entrain in a main raw material. A main raw material passage for a main raw material M and a secondary raw material passage for a secondary raw material N 23, the main raw material passage 13 and the auxiliary raw material passage 23 are set to a descending gradient that allows the raw materials M and N to flow down by their own weight, and are fed to the molding machine A through the raw material introduction passage 5 by their own weight. A baffle plate 15 is suspended downward from the upper end of the downstream end opening in the vicinity of the downstream end opening 13a in the main raw material passage 13, and at least between the side 15b of the baffle plate 15 and the downstream end opening 13a. A mixing screw 9 that forms a passage space S and rotates so as to push the raw materials M and N toward the baffle plate 15 is disposed directly below the lower end 15c of the baffle plate 15, and the mixing screw 9 faces the baffle plate 15 side. Leaning down In and material supply device arranged to three-dimensionally intersect the baffle plate 15 in a plan view. [Selection] Figure 1
Description
本発明は押出し装置やインフレーション成形装置などにおいて、原料供給や混合原料供給用の原料供給装置に関する。 The present invention relates to a raw material supply apparatus for supplying raw materials or supplying mixed raw materials in an extrusion apparatus, an inflation molding apparatus, or the like.
押出し装置を使った成形工程では、１種の原料（主原料）のみで成形を行う場合の他、２種以上の原料（主原料、副原料［着色のためや材質改善のため］）を混合使用することがある。 In the molding process using an extrusion device, in addition to molding with only one raw material (main raw material), two or more raw materials (main raw material and auxiliary raw materials [for coloring and material improvement]) are mixed. May be used.
これに対応する従来の押出し装置として、例えば、特許文献１に示すように、主原料ホッパ、主原料計量ホッパ、及び所定の下り勾配がついた主原料通路の他に、ほぼ垂直姿勢の副原料ホッパ、副原料計量ホッパ、副原料通路及び副原料切り出し用のスクリューコンベアを設け、この副原料通路の下端側を主原料通路の下端側に二叉状に連通接続し、主原料通路を自重で流下した一定量の主原料と、副原料切り出し用スクリューコンベアで切り出されてバラバラと落下し、副原料通路を自重で流下した一定量の副原料とを前記合流接続部で合流させてから原料導入路を経て押出成形機の原料供給口から押出成形機の加熱筒内に供給させるようにしたものがある。 As a conventional extrusion apparatus corresponding to this, as shown in, for example, Patent Document 1, in addition to a main raw material hopper, a main raw material weighing hopper, and a main raw material passage with a predetermined downward gradient, the auxiliary raw material in a substantially vertical posture A hopper, auxiliary material weighing hopper, auxiliary material passage, and screw conveyor for cutting out the auxiliary material are provided, and the lower end side of the auxiliary material passage is connected in a bifurcated manner to the lower end side of the main raw material passage, and the main raw material passage is self-weighted. A certain amount of the main material that has flowed down and a sub-material that has been cut out by the screw conveyor for cutting out the secondary material, fallen apart, and flowed down in the secondary material passage under its own weight are merged at the joint connection portion before the raw material is introduced. There is one that is supplied through a path from a raw material supply port of the extruder to a heating cylinder of the extruder.
この装置では逆台形状の「邪魔板」が設けられ、主原料が逆台形状の「邪魔板」のすぼまった下端から合流接続部に流れ落ちると同時に、「邪魔板」の傾斜している側辺を回り込み、副原料通路から「邪魔板」にガイドされてそのすぼまった下端方向に流れ落ちている副原料の上に覆いかぶさるようにして主原料内に副原料を巻き込み、主原料と副原料との混合が図られるようになった。 In this device, an inverted trapezoidal “baffle plate” is provided, and at the same time the main material flows from the sunk lower end of the inverted trapezoidal “baffle plate” to the junction, and the “baffle plate” is inclined. Auxiliary raw material is wrapped in the main raw material so as to cover the auxiliary raw material that wraps around the side raw material, is guided by the `` baffle plate '' from the auxiliary raw material passage, and flows down toward the bottom end. Mixing with auxiliary materials came to be achieved.
処が、副原料が主原料に比して多い場合、量の多い副原料を量の少ない主原料で主原料内に巻き込まなければならず、この場合、「邪魔板」の傾斜している側辺からの回り込み量が不足してせっかく計量したものの副原料の巻き込み不足が生じる。また、副原料が流れにくいものの場合、「邪魔板」のすぼまった下端付近に滞留しやすく、主原料の回り込み量が十分であったとしても副原料の巻き込み不足が生じる。嵩密度の低いものの場合も同様で、主原料の回り込み量が十分であったとしても、回り込んだ主原料から逃れてその上に浮上しやすく、巻き込み不足が生じる。特に、副原料が「邪魔板」の上部まで充填されているとその傾向が著しい。また、押出量が小さい場合もその傾向が強い。 However, if the amount of secondary material is larger than that of the main material, a large amount of secondary material must be entrapped in the main material with a small amount of main material. In this case, the inclined side of the “baffle plate” Although the amount of wrap around from the side is insufficient, the auxiliary material is insufficiently entrained although it is measured with great effort. Further, in the case where the auxiliary material is difficult to flow, the auxiliary material tends to stay in the vicinity of the narrowed lower end of the “baffle plate”, and even if the amount of the main raw material is sufficient, the auxiliary material is insufficiently involved. The same applies to the case where the bulk density is low. Even if the amount of the main raw material wraps around is sufficient, the main raw material escapes from the wraparound main material and tends to float on it, resulting in insufficient entrainment. In particular, the tendency is remarkable when the auxiliary material is filled up to the upper part of the “baffle plate”. Moreover, the tendency is strong also when the extrusion amount is small.
本発明はこのような巻き込みの困難な副原料も正確に主原料に巻き込んでいけるような原料供給装置を提供することをその解決課題とするものである。 It is an object of the present invention to provide a raw material supply apparatus that can accurately entrain such auxiliary materials that are difficult to entrain in the main material.
請求項１にかかる発明の原料供給装置（図１〜１０）は、
一定量の主原料（Ｍ）を下方へ送給するための主原料通路（１３）の下流端側と、一定量の副原料（Ｎ）を下方へ送給するための副原料通路（２３）の下流端側とを二叉状に連通接続し、この合流接続部（Ｐ）で前記主原料（Ｍ）と副原料（Ｎ）とを合流させ、原料導入路（５）を介して成形機（Ａ）へ自重で流下させる原料供給装置であって、
主原料通路（１３）の下流端開口（１３ａ）に位置し、下流端開口（１３ａ）の上部から下方に向かって下流端開口（１３ａ）より幅の狭い邪魔板（１５）が垂設され、
少なくとも邪魔板（１５）の側辺（１５ｂ）と下流端開口（１３ａ）との間に主原料通過空間（Ｓ）が形成され、
合流した両原料（Ｍ）（Ｎ）を混合するミキシングスクリュー（９）が、邪魔板（１５）の下端（１５ｃ）の直下にて邪魔板（１５）に立体的に交差するように配設されていることを特徴とするものである。
The raw material supply apparatus (FIGS. 1 to 10) of the invention according to claim 1
The downstream end side of the main raw material passage (13) for feeding a certain amount of main raw material (M) downward, and the auxiliary raw material passage (23) for feeding a certain amount of auxiliary raw material (N) downward And the downstream end side thereof are connected in a bifurcated manner, the main raw material (M) and the auxiliary raw material (N) are merged at this junction (P), and the molding machine is connected via the raw material introduction path (5). (A) a raw material supply device that flows down under its own weight,
A baffle plate (15), which is located in the downstream end opening (13a) of the main raw material passage (13) and is narrower than the downstream end opening (13a) downward from the upper part of the downstream end opening (13a), is suspended.
A main raw material passage space (S) is formed at least between the side (15b) of the baffle plate (15) and the downstream end opening (13a),
A mixing screw (9) that mixes both the joined raw materials (M) and (N) is disposed so as to three-dimensionally intersect the baffle plate (15) immediately below the lower end (15c) of the baffle plate (15). It is characterized by that.
請求項１の発明の原料供給装置によれば、一定量の主原料（Ｍ）が主原料通路（１３）に従って自重で流下して合流接続部（Ｐ）に向かう一方、一定量の副原料（Ｎ）も副原料通路（２３）を自重で流下して前記合流接続部（Ｐ）に向かう。主原料（Ｍ）の少なくともその大部分は主原料通路（１３）を出る時、邪魔板（１５）により制限され、邪魔板（１５）の側辺（１５ｂ）を回って邪魔板（１５）の背部に回り込み、その結果、邪魔板（１５）の背部において主原料（Ｍ）の流れの中央部分が邪魔板（１５）の形状に凹んだ状態になる。この部分が主原料（Ｍ）が通過しない領域（Ｑ）である。 According to the raw material supply apparatus of the first aspect of the invention, a constant amount of the main raw material (M) flows down by its own weight according to the main raw material passage (13) and travels toward the joining connection portion (P), while a predetermined amount of the auxiliary raw material ( N) also flows down the auxiliary raw material passage (23) by its own weight and travels toward the junction (P). At least most of the main raw material (M) is restricted by the baffle plate (15) when leaving the main raw material passage (13), and turns around the side (15b) of the baffle plate (15). As a result, the central portion of the flow of the main raw material (M) is recessed in the shape of the baffle plate (15) at the back portion of the baffle plate (15). This portion is a region (Q) through which the main raw material (M) does not pass.
一方、副原料（Ｎ）は邪魔板（１５）の副原料側の背面に主原料（Ｍ）が入り込まない前記領域（Ｑ）があるために、この領域（Ｑ）に主原料（Ｍ）の流下の勢いをほとんど受けることがなく、バラバラと投入された副原料（Ｎ）が入り込もうとする。しかし、前述のように、副原料（Ｎ）が主原料（Ｍ）に比して多い場合や、副原料（Ｎ）が流れにくい場合、嵩密度の低いものの場合はそのままでは邪魔板（１５）の側辺（１５ｂ）を回り込んで副原料（Ｎ）の背面側に流れ込んだ主原料（Ｍ）から逃れて主原料（Ｍ）の上に浮上しやすく、巻き込み不足が生じる傾向が著しい。押出量が小さい場合も同様である。 On the other hand, since the auxiliary raw material (N) has the region (Q) where the main raw material (M) does not enter on the back side of the auxiliary raw material side of the baffle plate (15), the auxiliary raw material (N) contains the main raw material (M) in this region (Q). The sub-raw material (N) that has been thrown apart tends to enter without receiving the momentum of flow. However, as described above, the baffle plate (15) is left as it is when the auxiliary raw material (N) is larger than the main raw material (M), the auxiliary raw material (N) is difficult to flow, or the bulk density is low. It tends to escape from the main raw material (M) flowing around the side (15b) and flowing into the back side of the auxiliary raw material (N) and float on the main raw material (M), and there is a significant tendency for insufficient entrainment. The same applies when the amount of extrusion is small.
しかしながら、邪魔板（１５）の直下に立体的に交差するように配置されたミキシングスクリュー（９）によって主原料（Ｍ）が強制的に掻き混ぜられて、この掻き混ぜに副原料（Ｎ）も強制的に巻き込まれて包み込まれ、この副原料（Ｎ）を包み込んだ主原料（Ｍ）は、邪魔板（１５）の下方を通って主原料（Ｍ）内に押し込まれてそのまま下方に流下する。この結果、押出量が小さく、主原料（Ｍ）が副原料（Ｎ）に比べて少ない場合
、或いはそのいずれかの場合、副原料（Ｎ）の流れが悪い場合、或いは嵩密度が主原料（Ｍ）に比べて小さい場合でも副原料（Ｎ）は、スムーズに自重で流下すると共に主原料（Ｍ）と良好に合流して且つある程度均一に分散して下方へ流下される。
However, the main raw material (M) is forcibly stirred by the mixing screw (9) disposed so as to cross three-dimensionally directly below the baffle plate (15), and the auxiliary raw material (N) is also added to this stirring. The main raw material (M) that is forcibly wrapped and wrapped and encloses this auxiliary raw material (N) passes under the baffle plate (15), is pushed into the main raw material (M), and flows down as it is. . As a result, when the extrusion amount is small and the main raw material (M) is less than the auxiliary raw material (N), or in any case, the flow of the auxiliary raw material (N) is poor, or the bulk density is the main raw material ( Even if it is smaller than M), the auxiliary raw material (N) flows down smoothly by its own weight, and well merges with the main raw material (M) and is dispersed to a certain extent to flow downward.
請求項２にかかる発明の原料供給装置（図１１〜１３）は、
一定量の主原料（Ｍ）を下方へ送給するための主原料通路（１３）と、主原料通路（１３）に挿入され、その下流端における主原料通路（１３）との合流接続部（Ｐ）で投入された一定量の副原料（Ｎ）を主原料（Ｍ）内に混入させて成形機（Ａ）に供給する副原料通路（２３）とで構成された原料供給装置であって、
主原料通路（１３）の下流端開口（１３ａ）内に位置する副原料通路（２３）の下流端部が略Ｖ形又は略逆台形或いは略Ｕ形に切欠されて副原料通路（２３）の下流端部に邪魔板（１５）が形成され、
邪魔板（１５）の側辺（１５ｂ）を、副原料通路（２３）の内側に主原料（Ｍ）が入り込む主原料通過空間（Ｓ）とし、
邪魔板（１５）の下端（１５ｃ）の直下にミキシングスクリュー（９）が邪魔板（１５）に立体的に交差するように配設されていることを特徴とするものである。
The raw material supply apparatus (FIGS. 11 to 13) of the invention according to claim 2
A main raw material passage (13) for feeding a certain amount of the main raw material (M) downward, and a joint connecting portion (which is inserted into the main raw material passage (13) and connected to the main raw material passage (13) at the downstream end thereof ( A raw material supply apparatus comprising a secondary raw material passage (23) in which a certain amount of secondary raw material (N) charged in P) is mixed into the main raw material (M) and supplied to the molding machine (A). ,
The downstream end portion of the auxiliary material passage (23) located in the downstream end opening (13a) of the main material passage (13) is cut into a substantially V shape, a substantially inverted trapezoidal shape, or a substantially U shape, so that the auxiliary material passage (23) A baffle plate (15) is formed at the downstream end,
The side (15b) of the baffle plate (15) is a main raw material passage space (S) into which the main raw material (M) enters the sub raw material passage (23),
The mixing screw (9) is disposed directly below the lower end (15c) of the baffle plate (15) so as to three-dimensionally intersect the baffle plate (15).
この場合は、副原料通路（２３）が主原料通路（１３）内に挿入され、且つ、その下流端部が略Ｖ形又は略逆台形或いは略Ｕ形に切欠されて邪魔板（１５）となっているため、主原料通路（１３）内の主原料（Ｍ）は副原料通路（２３）の周囲を取り囲み、略Ｖ形などに切欠された邪魔板（１５）の側辺（１５ｂ）から主原料（Ｍ）が副原料通路（２３）の内側に入り込み、副原料（Ｎ）と混ざり合う。そして、邪魔板（１５）の下端（１５ｃ）の直下のミキシングスクリュー（９）によって主原料（Ｍ）に更に混ぜ込まれ、仮に上記のような混ぜ込みにくい条件下であっても副原料（Ｎ）の主原料（Ｍ）への均一な混ぜ込みが完了する。 In this case, the auxiliary raw material passage (23) is inserted into the main raw material passage (13), and the downstream end thereof is cut into a substantially V shape, a substantially inverted trapezoidal shape, or a substantially U shape to form the baffle plate (15). Therefore, the main raw material (M) in the main raw material passage (13) surrounds the auxiliary raw material passage (23), and from the side (15b) of the baffle plate (15) cut out in a substantially V shape or the like. The main raw material (M) enters the auxiliary raw material passage (23) and mixes with the auxiliary raw material (N). Then, it is further mixed into the main raw material (M) by the mixing screw (9) immediately below the lower end (15c) of the baffle plate (15), and even if it is difficult to mix, the auxiliary raw material (N ) Is uniformly mixed into the main raw material (M).
請求項３は、請求項１又は２に記載の原料供給装置の改良の一例で、「ミキシングスクリュー（９）の螺旋羽根（９ｂ）の先端部分（９ｃ）が回転軸（９ａ）の先端より長く延出されている」事を特徴とするもので、このようにすることで主原料（Ｍ）と混ざり合った副原料（Ｎ）はミキシングスクリュー（９）の螺旋溝（９ｄ）にガイドされつつ下方に流下し、回転軸（９ａ）の先端を超えた部分で螺旋羽根（９ｂ）の先端部分（９ｃ）内に送り込まれてそのまま掻き混ぜられ、主原料（Ｍ）にうまく包み込まれた状態で下方へ流下される。 A third aspect is an example of an improvement of the raw material supply apparatus according to the first or second aspect, wherein “the tip portion (9c) of the spiral blade (9b) of the mixing screw (9) is longer than the tip of the rotating shaft (9a). The secondary raw material (N) mixed with the main raw material (M) is guided in the spiral groove (9d) of the mixing screw (9). In a state where it flows downward and is fed into the tip portion (9c) of the spiral blade (9b) at the portion beyond the tip of the rotating shaft (9a) and stirred as it is, and is well wrapped in the main raw material (M). It flows down.
請求項４は、請求項１又は２に記載の原料供給装置の他の改良例で、「ミキシングスクリュー（９）の回転軸（９ａ）の先端が原料導入路（５）の壁面（５ａ）まで又は近傍まで延出され、螺旋羽根（９ｂ）が邪魔板（１５）を越えて邪魔板（１５）の背部まで設けられている」ことを特徴とするもので、このようにすることで主原料（Ｍ）と混ざり合った副原料（Ｎ）はミキシングスクリュー（９）の螺旋溝（９ｄ）にガイドされつつ原料導入路（５）の壁面（５ａ）の近くまで押し込まれつつ掻き混ぜられ、主原料（Ｍ）中に広く分散した状態で下方へ流下される。 The fourth aspect is another modification of the raw material supply apparatus according to the first or second aspect, wherein "the tip of the rotating shaft (9a) of the mixing screw (9) extends to the wall surface (5a) of the raw material introduction path (5). Or a spiral blade (9b) is provided up to the back of the baffle plate (15) beyond the baffle plate (15). The auxiliary raw material (N) mixed with (M) is stirred while being pushed near the wall surface (5a) of the raw material introduction path (5) while being guided by the spiral groove (9d) of the mixing screw (9). It flows down in a state of being widely dispersed in the raw material (M).
請求項５は、請求項１〜４に記載の原料供給装置の更なる改良（図１１〜１３）で「副原料（Ｎ）をミキシングスクリュー（９）に向かって押し込むための押込スクリュー（６９）が副原料通路（２３）に更に設けられている」ことを特徴とするもので、ミキシングスクリュー（９）の存在により、上記のような条件の悪い副原料（Ｎ）でも主原料（Ｍ）内により効果的に押し込んで行くことができる。 Claim 5 is a further improvement of the raw material supply apparatus according to claims 1 to 4 (FIGS. 11 to 13): “Pushing screw (69) for pushing the auxiliary raw material (N) toward the mixing screw (9)” Is further provided in the auxiliary raw material passage (23) ". Due to the presence of the mixing screw (9), the auxiliary raw material (N) with poor conditions as described above can be contained in the main raw material (M). Can be pushed in more effectively.
請求項６にかかる発明の原料供給装置（図１１〜１４）は、請求項１の邪魔板１５に代えて、副原料通路（２３）の下端部を邪魔板１５として用いた場合で、
一定量の主原料（Ｍ）を下方へ送給するための主原料通路（１３）の下流端側と、一定量の副原料（Ｎ）を下方へ送給するための副原料通路（２３）の下流端側とを二叉状に連通接続し、この合流接続部（Ｐ）で前記主原料（Ｍ）と副原料（Ｎ）とを合流させ、原料導入路（５）を介して成形機（Ａ）へ自重で流下させる原料供給装置であって、
前記合流接続部（Ｐ）に於いて副原料通路（２３）の下端部に主原料通過空間（Ｓ）となる切欠を形成して該下端部の主原料通過空間（Ｓ）の間の非切欠部分が邪魔板（１５）となるように上部から下方に向かって次第に幅が狭くなるように形成され、
邪魔板（１５）の下端（１５ｃ）の直下にて邪魔板（１５）に立体的に交差するように配設され、合流した両原料（Ｍ）（Ｎ）を混合するミキシングスクリュー（９）と、副原料通路（２３）内に配設され、副原料（Ｎ）を原料導入路（５）に向かって押し込むための押込スクリュー（６９）の少なくともいずれか一方を前記合流接続部（Ｐ）に備えたことを特徴とする。
The raw material supply apparatus (FIGS. 11 to 14) of the invention according to claim 6 is a case where the lower end portion of the auxiliary raw material passage (23) is used as the baffle plate 15 instead of the baffle plate 15 of claim 1.
The downstream end side of the main raw material passage (13) for feeding a certain amount of main raw material (M) downward, and the auxiliary raw material passage (23) for feeding a certain amount of auxiliary raw material (N) downward And the downstream end side thereof are connected in a bifurcated manner, the main raw material (M) and the auxiliary raw material (N) are merged at this junction (P), and the molding machine is connected via the raw material introduction path (5). (A) a raw material supply device that flows down under its own weight,
A notch serving as a main raw material passage space (S) is formed at the lower end portion of the auxiliary raw material passage (23) in the junction connection portion (P), and a notch is not formed between the main raw material passage spaces (S) at the lower end portion. Formed so that the width gradually decreases from the top to the bottom so that the portion becomes a baffle plate (15),
A mixing screw (9) that is arranged so as to three-dimensionally intersect the baffle plate (15) directly below the lower end (15c) of the baffle plate (15), and mixes the two raw materials (M) and (N) that have joined together. In addition, at least one of the pushing screws (69) disposed in the auxiliary raw material passage (23) and for pushing the auxiliary raw material (N) toward the raw material introduction path (5) is connected to the joining connection portion (P). It is characterized by having.
この場合、下端部全周に邪魔板（１５）が形成された副原料通路（２３）を用い、ミキシングスクリュー（９）だけ、押込スクリュー（６９）だけ、ミキシングスクリュー（９）と押込スクリュー（６９）の両方を用いる場合がある。いずれの場合でも、主原料通過空間（Ｓ）を通って副原料通路（２３）の周囲から主原料（Ｍ）が回り込み、副原料（Ｎ）を主原料（Ｍ）内に取り込む。この時、副原料（Ｎ）の種類や性状に拘わらずミキシングスクリュー（９）や押込スクリュー（６９）によって効果的に均一混合がなされる。 In this case, the auxiliary material passage (23) having the baffle plate (15) formed on the entire periphery of the lower end portion is used, and only the mixing screw (9), only the pushing screw (69), mixing screw (9) and pushing screw (69 ) May be used. In any case, the main raw material (M) flows from the periphery of the auxiliary raw material passage (23) through the main raw material passage space (S), and the auxiliary raw material (N) is taken into the main raw material (M). At this time, uniform mixing is effectively performed by the mixing screw (9) and the pushing screw (69) regardless of the type and properties of the auxiliary raw material (N).
請求項７は、請求項１〜６のいずれかに記載の原料供給装置の更なる改良で「邪魔板（１５）の下方に原料シュート（１０）が設けられ、
原料シュート（１０）の上端開口（１０ａ）は、主原料通路（１３）の下流端と副原料通路（２３）の下流端の合流接続部（Ｐ）に接続しており、
原料シュート（１０）の下端開口（１０ｂ）は、上端開口（１０ａ）より開口幅が狭く形成されており、
原料シュート（１０）の側面（１０ｃ）は、上端開口（１０ａ）から下端開口（１０ｂ）に向けて傾斜するように設けられていることを特徴とするものである。
Claim 7 is a further improvement of the raw material supply apparatus according to any one of claims 1 to 6, wherein “a raw material chute (10) is provided below the baffle plate (15),
The upper end opening (10a) of the raw material chute (10) is connected to the junction (P) at the downstream end of the main raw material passage (13) and the downstream end of the auxiliary raw material passage (23),
The lower end opening (10b) of the raw material chute (10) is formed to have a smaller opening width than the upper end opening (10a),
The side surface (10c) of the raw material chute (10) is provided so as to be inclined from the upper end opening (10a) toward the lower end opening (10b).
これによれば、邪魔板（１５）の側辺（１５ｂ）を通過した主原料（Ｍ）は、原料シュート（１０）の傾斜している両側面（１０ｃ）で強制的に内側に寄せられて邪魔板（１５）の背面の領域（Ｑ）に流れ込んだ副原料（Ｎ）の上に覆いかぶさる。その結果、原料シュート（１０）の下端開口（１０ｂ）の下方に設置されているミキシングスクリュー（９）や、副原料通路（２３）内に配設されている押込スクリュー（６９）による均一混合が更に進む。 According to this, the main raw material (M) that has passed through the side (15b) of the baffle plate (15) is forcibly brought inward by the inclined side surfaces (10c) of the raw material chute (10). Cover the auxiliary material (N) that has flowed into the area (Q) on the back of the baffle plate (15). As a result, uniform mixing is performed by the mixing screw (9) installed below the lower end opening (10b) of the raw material chute (10) and the pushing screw (69) disposed in the auxiliary raw material passage (23). Proceed further.
以上により、押出量が小さく且つ副原料が主原料に比して多い場合、或いはそのいずれかの場合や、流れにくい副原料、嵩密度の低い、混入条件の悪い副原料でも正確に主原料に巻き込んで行くことができた。 As described above, when the amount of extrusion is small and the amount of auxiliary material is larger than that of the main material, or any of them, or even when the auxiliary material is difficult to flow, the auxiliary material is low in bulk density and has poor mixing conditions, I was able to get involved.
以下、本発明の実施形態を図面に基づいて説明する。図１は、本発明の実施形態にかかる原料供給装置が適用された押出成形機（Ａ）を示す断面図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an extrusion molding machine (A) to which a raw material supply apparatus according to an embodiment of the present invention is applied.
図１において、この押出成形機（Ａ）は、主原料供給部（１）と、副原料供給部（２）と、押出し装置本体（３）と、押出し装置本体（３）の原料供給口（４）に連通する原料導入路（５）と、原料導入路（５）に設けられたミキシング装置（６）と、原料導入路（５）の下端にミキシング装置（６）のミキシングスクリュー（９）が脱落して落下した場合にこれを受け止める網状のスクリュー受け（８）とを備えている。スクリュー受け（８）は必要に応じて設けることができ、なくても良いが、本実施例では設けた例を示す。 In FIG. 1, this extrusion molding machine (A) includes a main raw material supply unit (1), an auxiliary raw material supply unit (2), an extrusion device main body (3), and a raw material supply port (3) of the extrusion device main body (3). 4) A raw material introduction path (5) communicating with the raw material introduction path (5), a mixing screw (9) of the mixing apparatus (6) at the lower end of the raw material introduction path (5) Is provided with a net-like screw receiver (8) that catches when it falls off. The screw receiver (8) can be provided if necessary, but may not be provided, but an example provided in this embodiment is shown.
主原料供給部（１）は、主原料ホッパ（１１）と、主原料計量ホッパ（１２）と、主原料通路（１３）とを備えており、また、副原料供給部（２）は、副原料ホッパ（２１）と、副原料計量ホッパ（２２）と、副原料通路（２３）と、副原料切り出し用スクリュー（２４）とを備えている。 The main raw material supply unit (1) includes a main raw material hopper (11), a main raw material weighing hopper (12), and a main raw material passage (13), and the auxiliary raw material supply unit (2) A raw material hopper (21), a secondary raw material weighing hopper (22), a secondary raw material passage (23), and a secondary raw material cutting screw (24) are provided.
前記主原料ホッパ（１１）は、成形材料の主体となる主原料（Ｍ）を収容するものであり、その下流端開口を開閉可能に閉塞するシャッタ部材（１１ａ）が設けられている。また、主原料計量ホッパ（１２）は、主原料計量ホッパ（１２）内の主原料（Ｍ）の重量を計量し、且つ主原料計量ホッパ（１２）内の主原料（Ｍ）が所定の下限値を切ったときに主原料ホッパ（１１）から供給される主原料（Ｍ）を一定量、計量するロードセル（１２ａ）を有している。 The main raw material hopper (11) accommodates the main raw material (M), which is a main component of the molding material, and is provided with a shutter member (11a) that closes and opens the downstream end opening thereof. The main raw material weighing hopper (12) measures the weight of the main raw material (M) in the main raw material weighing hopper (12), and the main raw material (M) in the main raw material weighing hopper (12) is a predetermined lower limit. It has a load cell (12a) for weighing a certain amount of the main raw material (M) supplied from the main raw material hopper (11) when the value is cut.
前記副原料ホッパ（２１）は、成形材料の副原料（Ｎ）を収容するものであり、その下流端開口を開閉可能に閉塞するシャッタ部材（２１ａ）が設けられている。また、副原料計量ホッパ（２２）は、副原料計量ホッパ（２２）内の副原料（Ｎ）の重量を計量し、且つ副原料計量ホッパ（２２）内の副原料（Ｎ）が所定の下限値を切ったときに副原料ホッパ（２１）から供給される副原料（Ｎ）を一定量、計量するロードセル（２２ａ）を有している。 The auxiliary material hopper (21) accommodates the auxiliary material (N) of the molding material, and is provided with a shutter member (21a) that closes its downstream end opening so that it can be opened and closed. The auxiliary material weighing hopper (22) measures the weight of the auxiliary material (N) in the auxiliary material weighing hopper (22), and the auxiliary material (N) in the auxiliary material weighing hopper (22) has a predetermined lower limit. It has a load cell (22a) for weighing a certain amount of the auxiliary material (N) supplied from the auxiliary material hopper (21) when the value is cut.
前記主原料通路（１３）は、例えば金属製の筒形配管から構成されており、主原料計量ホッパ（１２）と前記原料導入路（５）との間に配設されると共に図２に示すように前記ロードセル（１２ａ）で計量された一定量の主原料（Ｍ）が自重で流下する程度の下り勾配で配設されている。 The main raw material passage (13) is made of, for example, a metal pipe, and is disposed between the main raw material weighing hopper (12) and the raw material introduction passage (5) and is shown in FIG. In this way, a certain amount of the main raw material (M) weighed in the load cell (12a) is disposed with a descending gradient so as to flow down under its own weight.
前記副原料通路（２３）も、例えば金属製の筒形配管から構成されており、副原料計量ホッパ（２２）と前記原料導入路（５）との間に配設されると共に図２に示すように前記ロードセル（２２ａ）で計量された一定量の副原料（Ｎ）が後述する切り出し用スクリュー（２４）にて順次切り出され、バラバラと自重で落下するように下り勾配に設定されている。両者の下り勾配は原料がスムーズに落下すればよく、両者の勾配に関する因果関係は特にないが、ここでは、両者の下り勾配は同一としてもよいし、副原料通路（２３）の下り勾配角度を主原料通路（１３）よりも急峻な下り勾配に設定しておいてもよい。この例では、副原料通路（２３）を、ほぼ垂直に近い傾斜の姿勢に設定して副原料（Ｎ）の自重流下をしやすくしてあるが、勿論、これに限られず、この副原料通路（２３）の下り勾配は、主原料通路（１３）よりも急峻な勾配としてもよい。 The auxiliary material passage (23) is also composed of, for example, a metal pipe, and is disposed between the auxiliary material measuring hopper (22) and the material introduction path (5) and is shown in FIG. As described above, a certain amount of the auxiliary material (N) measured in the load cell (22a) is sequentially cut out by a cutting screw (24) described later, and is set to have a downward slope so as to fall apart by its own weight. There is no causal relationship between the two slopes as long as the raw material falls smoothly. However, in this case, the two slopes may be the same, and the downward slope angle of the auxiliary material passage (23) may be the same. You may set it as a steep downward slope rather than the main raw material channel | path (13). In this example, the auxiliary raw material passage (23) is set to a substantially vertical inclination to facilitate the flow of the auxiliary raw material (N) under its own weight. The downward gradient of (23) may be a steeper gradient than the main raw material passage (13).
主原料通路（１３）の下流端側と副原料通路（２３）の下流端側は、二叉の合流接続部（Ｐ）を形成するように連通接続されており、この合流接続部（Ｐ）を前記原料導入路（５）に連通させてある。なお、上記副原料通路（２３）の上端側には、副原料（Ｎ）に対する切り出し用スクリュー（２４）が配設されている。 The downstream end side of the main raw material passage (13) and the downstream end side of the auxiliary raw material passage (23) are connected in communication so as to form a bifurcated joining connection portion (P). This joining connection portion (P) Is communicated with the raw material introduction path (5). Note that a cutting screw (24) for the auxiliary raw material (N) is disposed on the upper end side of the auxiliary raw material passage (23).
前記主原料通路（１３）は、断面四角形の管路でもよいが、図１０に示すように下流端開口（１３ａ）に向かって断面円形に形成された管路としてもよい。主原料通路（１３）の出口が円形の場合、主原料（Ｍ）が内側に寄せ集められて副原料（Ｎ）と混ざりやすくなる。そして、主原料通路（１３）の出口には、上記主原料通路（１３）を出る時の主原料（Ｍ）の通過時の上面形状を略Ｖ形又は略逆台形或いは略Ｕ形に変形させる邪魔板（１５）が配設されている。また、主原料通路（１３）の底面形状は矩形でも円弧でもよい。円弧の場合、邪魔板（１５）のＶ形、Ｕ形或いは逆台形の側辺（１５ｂ）にある程度添うようにしておくことが好ましい。 The main raw material passage (13) may be a pipe having a square cross section, but may be a pipe having a circular cross section toward the downstream end opening (13a) as shown in FIG. When the outlet of the main raw material passage (13) is circular, the main raw material (M) is gathered inside and easily mixed with the auxiliary raw material (N). At the outlet of the main raw material passage (13), the upper surface shape when the main raw material (M) passes through the main raw material passage (13) is deformed into a substantially V shape, a substantially inverted trapezoidal shape or a substantially U shape. A baffle plate (15) is provided. The bottom shape of the main raw material passage (13) may be a rectangle or an arc. In the case of a circular arc, it is preferable that the baffle plate (15) is attached to some extent on the side (15b) of the V shape, U shape or inverted trapezoid.
上記邪魔板（１５）は、例えば図２に示すように、主原料通路（１３）の出口を上端から下方向に突き出た板体からなり、その下部（１５ａ）の幅方向両角が切り欠かれて該下部（１５ａ）が下方に向かうにつれて幅狭となる、いわゆる逆台形状、或いはＵ字形又は略Ｖ形に形成されている。（図１２〜１４の邪魔板１５に付いては後述する。）逆台形状部分（ただし、Ｕ字形、略Ｖ形は図示せず）は、図２のように邪魔板（１５）の側面から水平に切り込み、この水平切込部分（１５ｅ）から斜め下方に延出させてもよいし、図示しないが、水平切込部分（１５ｅ）を設けず、そのまま逆台形状部分を斜め下方に延出させてもよい。なお、この邪魔板（１５）は、出口に対して突き出し量が調整できるように上下方向の位置が調整できる。例えば前記当て板（１４）の幅方向両側にそれぞれ設けられ、ガイド溝が形成されたガイド部材（１６）及び前記ガイド溝に合わせて螺着されたボルトのような保持部材（１７）により上下方向へ変移可能に支持されている。 For example, as shown in FIG. 2, the baffle plate (15) is a plate body that protrudes downward from the upper end of the main raw material passage (13), and both corners in the width direction of the lower portion (15a) are cut away. Thus, the lower portion (15a) is formed in a so-called inverted trapezoidal shape that becomes narrower as it goes downward, or a U-shape or a substantially V-shape. (The baffle plate 15 shown in FIGS. 12 to 14 will be described later.) The inverted trapezoidal shape portion (however, the U-shape and the substantially V-shape are not shown) is formed from the side surface of the baffle plate (15) as shown in FIG. It is possible to cut horizontally and extend diagonally downward from this horizontal cut part (15e). Although not shown, the horizontal cut part (15e) is not provided and the inverted trapezoidal part is extended diagonally downward. You may let them. In addition, this baffle plate (15) can adjust the position of an up-down direction so that protrusion amount can be adjusted with respect to an exit. For example, a vertical direction is provided by a guide member (16) provided on both sides in the width direction of the abutting plate (14) and formed with a guide groove and a holding member (17) such as a bolt screwed to fit the guide groove. It is supported so that it can be transferred to.
ミキシング装置（６）は、ミキシングスクリュー（９）と減速機付きのミキシングモーター（７）とで構成され、ミキシングスクリュー（９）は、ミキシングモーター（７）に接続される回転軸（９ａ）と、その周囲に取り付けられた螺旋羽根（９ｂ）とで構成され、図１〜１０では螺旋羽根（９ｂ）の全長は回転軸（９ａ）より長く、螺旋羽根（９ｂ）の先端部分（９ｃ）が回転軸（９ａ）の先端より先に延出している。このミキシングスクリュー（９）は、ミキシングモーター（７）と共に原料導入路（５）の壁面（５ｂ）に穿設された丸孔に挿脱可能で原料導入路（５）に固定できるようになっている。ミキシング装置（６）の装着時にはミキシングスクリュー（９）が邪魔板（１５）の下方にて邪魔板（１５）に平面視で立体的で、先端側が斜め下に下がった状態で交差するように配設される。ここでは直交するように配設されているが、勿論、これに限られない。 The mixing device (6) includes a mixing screw (9) and a mixing motor (7) with a speed reducer, and the mixing screw (9) includes a rotating shaft (9a) connected to the mixing motor (7), 1 to 10, the entire length of the spiral blade (9b) is longer than the rotation axis (9a), and the tip portion (9c) of the spiral blade (9b) rotates. It extends ahead of the tip of the shaft (9a). The mixing screw (9) can be inserted into and removed from a round hole formed in the wall surface (5b) of the raw material introduction path (5) together with the mixing motor (7) and can be fixed to the raw material introduction path (5). Yes. When the mixing device (6) is mounted, the mixing screw (9) is arranged below the baffle plate (15) so that it crosses the baffle plate (15) in a plan view and the front end side is obliquely lowered. Established. Here, they are arranged so as to be orthogonal, but of course not limited to this.
これに対して図１１はミキシングスクリュー（９）の他の例で、回転軸（９ａ）に丸孔が穿設され、図示しない軸受で支持された壁面（５ｂ）の反対側の壁面（５ａ）まで延出されており、その周囲に設けられた螺旋羽根（９ｂ）は邪魔板（１５）の下方を通って邪魔板（１５）の背面に至り、前記壁面近傍（５ａ）まで設けられている。そして、ミキシングスクリュー（９）は原料導入路（５）の丸孔から邪魔板（１５）に向って下り傾斜に配設されている。傾斜角度は水平線に対して５〜１５°の範囲で、１０°プラス・マイナス２°程度が好ましい。なお、図１１は主原料通路（１３）と副原料通路（２３）でも図７の他の例である。図１１に付いては後述する。 On the other hand, FIG. 11 shows another example of the mixing screw (9). A wall surface (5a) on the opposite side of the wall surface (5b) supported by a bearing (not shown) having a round hole in the rotating shaft (9a). The spiral blade (9b) provided around the baffle passes below the baffle plate (15) to reach the back surface of the baffle plate (15) and is provided to the vicinity of the wall surface (5a). . And the mixing screw (9) is arrange | positioned in the downward inclination from the round hole of the raw material introduction path (5) toward the baffle plate (15). The inclination angle is in the range of 5 to 15 ° with respect to the horizontal line, and preferably about 10 ° plus or minus 2 °. FIG. 11 shows another example of FIG. 7 in the main raw material passage (13) and the auxiliary raw material passage (23). FIG. 11 will be described later.
邪魔板（１５）との関係では、図３の場合では、回転軸（９ａ）の先端が邪魔板（１５）の下端（１５ｃ）の前後に位置しており、螺旋羽根（９ｂ）の先端部分（９ｃ）が邪魔板（１５）を越えて主原料（Ｍ）側に出ているのが好ましい。 In the relationship with the baffle plate (15), in the case of FIG. 3, the tip of the rotating shaft (9a) is positioned before and after the lower end (15c) of the baffle plate (15), and the tip portion of the spiral blade (9b) It is preferable that (9c) protrudes beyond the baffle plate (15) to the main raw material (M) side.
前記押出し装置本体（３）は、例えば前記主原料（Ｍ）や副原料（Ｎ）が供給される加熱筒（３１）、この加熱筒（３１）内に配設された送りスクリュー（３２）及び送りスクリュー（３２）を駆動するモータ（３３）などから構成されている。 The extrusion device main body (3) includes, for example, a heating cylinder (31) to which the main raw material (M) and the auxiliary raw material (N) are supplied, a feed screw (32) disposed in the heating cylinder (31), and It comprises a motor (33) for driving the feed screw (32).
次に、上記構成の押出成形機（Ａ）の動作を説明する。まず、主原料通路（１３）における邪魔板（１５）を図２〜５に示す所定位置にセットした後、主原料ホッパ（１１）のシャッタ部材（１１ａ）並びに副原料ホッパ（２１）のシャッタ部材（２１ａ）をそれぞれ開放する。これにより、主原料ホッパ（１１）に収容されている主原料（Ｍ）が主原料計量ホッパ（１２）に供給され、ロードセル（１２ａ）により一定量が計量され、この一定量の主原料（Ｍ）が主原料通路（１３）に所定の供給量で正確に投入される一方、副原料ホッパ（２１）に収容されている副原料（Ｎ）が副原料計量ホッパ（２２）に供給され、ロードセル（２２ａ）により一定量が計量され、この一定量の副原料（Ｎ）が副原料通路（２３）に所定の供給量で正確に投入される。 Next, operation | movement of the extrusion molding machine (A) of the said structure is demonstrated. First, the baffle plate (15) in the main raw material passage (13) is set at a predetermined position shown in FIGS. 2 to 5, and then the shutter member (11a) of the main raw material hopper (11) and the shutter member of the auxiliary raw material hopper (21). (21a) is opened. Thereby, the main raw material (M) accommodated in the main raw material hopper (11) is supplied to the main raw material weighing hopper (12), and a constant amount is weighed by the load cell (12a). ) Is accurately put into the main material passage (13) at a predetermined supply amount, while the auxiliary material (N) accommodated in the auxiliary material hopper (21) is supplied to the auxiliary material weighing hopper (22), and the load cell A certain amount is weighed by (22a), and this certain amount of the auxiliary material (N) is accurately put into the auxiliary material passage (23) with a predetermined supply amount.
主原料通路（１３）に投入された一定量の主原料（Ｍ）は、図２に示すように、該主原料通路（１３）の下り勾配に従って自重で流下し、下流端開口（１３ａ）付近にある邪魔板（１５）により邪魔されて、主原料通路（１３）の出口（下流端開口（１３ａ）を出る時、主原料（Ｍ）は邪魔板（１５）の逆台形状等の下部（１５ａ）と出口の内周面との間隙部分である主原料通過空間（Ｓ）を通過することになるので、邪魔板（１５）の通過直後において、邪魔板（１５）に掻き分けられて、主原料（Ｍ）の上面形状は邪魔板（１５）の下部（１５ａ）によりほぼＶ、Ｕ又は逆台形状に凹んだ状態となって流下する。邪魔板（１５）の下部（１５ａ）がほぼＶ、Ｕ形や矩形である場合、上面が広がっていないＵ形となり、邪魔板（１５）の下部（１５ａ）が逆台形や両角が切落されている場合、上面形状が開いた逆台形状となる。）そしていずれの場合でも図２に示すように、邪魔板（１５）の背方に主原料（Ｍ）が流入しない空き領域（Ｑ）［＝上面形状が凹んでいる部分］が発生する存在することになる。 As shown in FIG. 2, a certain amount of the main raw material (M) charged into the main raw material passage (13) flows down by its own weight according to the downward gradient of the main raw material passage (13), and is near the downstream end opening (13a). The main raw material (M) is obstructed by the baffle plate (15) at the outlet (downstream end opening (13a)), and the main raw material (M) 15a) and the main material passage space (S) that is the gap between the inner peripheral surface of the outlet, and immediately after passing through the baffle plate (15), it is scraped into the baffle plate (15) The upper surface shape of the raw material (M) flows down in a state of being recessed substantially V, U or inverted trapezoidal shape by the lower part (15a) of the baffle plate (15), and the lower part (15a) of the baffle plate (15) is substantially V. If it is U-shaped or rectangular, it will be U-shaped with the upper surface unexpanded and under the baffle plate (15) (15a) is an inverted trapezoid or an inverted trapezoid with both sides cut off.) In either case, as shown in FIG. There will be a vacant area (Q) where the raw material (M) does not flow in [= a portion where the top surface shape is recessed].
一方、副原料通路（２３）に投入された副原料（Ｎ）は、急な下り勾配を流下して前記空き領域（Ｑ）内に投入される。副原料（Ｎ）の表面の摩擦が大きくて流れにくいものや、十分な嵩密度を有さないるもの（換言すれば、軽いもの）、或いは副原料（Ｎ）に対して主原料（Ｍ）の量が不十分である場合や押出量が小さい場合、或いはその両方の場合、主原料（Ｍ）の上面形状はＵ或いはＶ形などに凹んでいても、その凹みに入り込んでいた副原料（Ｎ）は両側から流れ込んだ主原料（Ｍ）に押し上げられたり、邪魔板（１５）に付着して滑り落ちにくくて主原料（Ｍ）に巻き込まれにくいという現象を示していたが、ミキシングスクリュー（９）により条件の悪い副原料（Ｎ）でもうまく主原料（Ｍ）内に混ぜ込むことが出来る。特に、ミキシングスクリュー（９）の螺旋溝（９ｄ）に入り込んだ主・副原料（Ｍ）（Ｎ）は先下がりのミキシングスクリュー（９）の回転により、強制的にミキシングスクリュー（９）の先端方向に押し出されてミキシングスクリュー（９）の先端部分（９ｃ）に設けられた螺旋状の延出部分に入り込んで掻き混ぜられ、この位置からミキシングスクリュー（９）の下方に充填されている主原料（Ｍ）内に強制的に押し込まれる。従って、副原料（Ｎ）が上記のようなものであるとしても、強制的に主原料（Ｍ）内に押し込まれるため、混合ムラを生じない。 On the other hand, the auxiliary raw material (N) introduced into the auxiliary raw material passage (23) flows down a steep downward slope and is introduced into the empty area (Q). The main raw material (M) with respect to the auxiliary raw material (N) having a large friction on the surface of the auxiliary raw material (N), not having sufficient bulk density (in other words, light), or the auxiliary raw material (N) In the case where the amount of is insufficient, the amount of extrusion is small, or both, even if the upper surface shape of the main raw material (M) is recessed in the U or V shape, the auxiliary raw material ( N) was pushed up by the main raw material (M) flowing in from both sides, or adhered to the baffle plate (15) and was not easily slipped down and was not easily caught in the main raw material (M). According to 9), the auxiliary raw material (N) having poor conditions can be well mixed into the main raw material (M). In particular, the main and auxiliary materials (M) (N) that have entered the spiral groove (9d) of the mixing screw (9) are forced to move toward the tip of the mixing screw (9) due to the rotation of the mixing screw (9). The main raw material (which is pushed into the spiral extension portion provided at the tip portion (9c) of the mixing screw (9) and stirred and filled under the mixing screw (9) from this position ( M) is forced into. Therefore, even if the auxiliary raw material (N) is as described above, it is forced into the main raw material (M), so that uneven mixing does not occur.
なお、副原料通路（２３）が主原料通路（１３）よりも急峻な下り勾配に設定されている場合には、主原料（Ｍ）よりも速く自重で落下して前記合流接続部（Ｐ）に向かうことになり、ミキシングスクリュー（９）のミキシング効果が高まる。 In addition, when the sub raw material passage (23) is set to a steep downward slope than the main raw material passage (13), the secondary raw material passage (23) falls by its own weight faster than the main raw material (M), and the joining connection portion (P). The mixing effect of the mixing screw (9) is enhanced.
また、上記邪魔板（１５）の構成は、上記実施形態のものに限定されるものではなく、例えば主原料通路（１３）を横断する軸を介して円盤を回転変移させるものなど、主原料（Ｍ）の通過流下量を制限できる機能を有するものを適宜採用すればよい。 In addition, the configuration of the baffle plate (15) is not limited to that of the above-described embodiment. For example, a main raw material (such as one in which a disk is rotationally displaced via an axis that traverses the main raw material passage (13)). What has the function which can restrict | limit the flow-through amount of M) should just be employ | adopted suitably.
次に、本発明の第２実施例を図６〜９に従って説明する。この場合は邪魔板（１５）とミキシングスクリュー（９）の間に更に原料シュート（１０）を設けた場合である。原料シュート（１０）の上端開口（１０ａ）は主原料通路（１３）の下流端と副原料通路（２３）の下流端の合流部分である合流接続部（Ｐ）に接続している。該上端開口（１０ａ）はこの場合は矩形であるが、別段これに限定されず、合流接続部（Ｐ）の形状に合わせた円形その他でもよい。邪魔板（１５）の下端は原料シュート（１０）の上端開口（１０ａ）内に入り込んでいてもよいし、上端開口（１０ａ）上で留まっていてもよい。 Next, a second embodiment of the present invention will be described with reference to FIGS. In this case, a material chute (10) is further provided between the baffle plate (15) and the mixing screw (9). The upper end opening (10a) of the raw material chute (10) is connected to a confluence connecting portion (P) which is a confluence portion of the downstream end of the main raw material passage (13) and the downstream end of the auxiliary raw material passage (23). The upper end opening (10a) has a rectangular shape in this case, but is not limited to this, and may be a circle or the like that matches the shape of the junction (P). The lower end of the baffle plate (15) may enter the upper end opening (10a) of the raw material chute (10), or may remain on the upper end opening (10a).
原料シュート（１０）の下端開口（１０ｂ）はミキシングスクリュー（９）に沿って細長く開口し、且つ、ミキシングスクリュー（９）の回転元側から先端側に向けて次第に狭くなる細長い台形状に設けられている。下端開口（１０ｂ）の水平面との角度はミキシングスクリュー（９）と同じで、５°〜１５°、好ましくは１０°プラス・マイナス２°程度で、邪魔板（１５）に向って下り傾斜に形成されている。 The lower end opening (10b) of the raw material chute (10) is formed in an elongated trapezoidal shape that is elongated along the mixing screw (9) and gradually narrows from the rotation source side to the front end side of the mixing screw (9). ing. The angle of the lower end opening (10b) with the horizontal plane is the same as that of the mixing screw (9), and is 5 ° to 15 °, preferably about 10 ° plus or minus 2 °, and is inclined downward toward the baffle plate (15). Has been.
原料シュート（１０）を構成する前面、後面及び両側面は上端開口（１０ａ）の各辺から下端開口（１０ｂ）の各辺に繋がっており、少なくとも長辺に接続する原料シュート（１０）の両側面（１０ｃ）は、上端開口（１０ａ）から下端開口（１０ｂ）に向けて傾斜するように設けられている。原料シュート（１０）の前面（１０ｄ）、後面（１０ｅ）は図６〜９の実施例では垂直であるが、勿論これに限られず、これら下端開口（１０ｂ）に向けて次第に内側に窄まるように傾斜させてもよい。 The front surface, the rear surface, and both side surfaces constituting the raw material chute (10) are connected to each side of the lower end opening (10b) from each side of the upper end opening (10a), and at least both sides of the raw material chute (10) connected to the long side. The surface (10c) is provided so as to be inclined from the upper end opening (10a) toward the lower end opening (10b). The front surface (10d) and the rear surface (10e) of the raw material chute (10) are vertical in the embodiments of FIGS. 6 to 9, but of course not limited to this, and gradually squeeze inward toward the lower end opening (10b). You may make it incline.
このような原料シュート（１０）を設けた場合、邪魔板（１５）の側辺（１５ｂ）を通過した主原料（Ｍ）は、原料シュート（１０）の傾斜している両側面（１０ｃ）で強制的に内側に寄せられて邪魔板（１５）の背面に流れ込んだ副原料（Ｎ）の上に覆いかぶさり、下端開口（１０ｂ）の下方に設置されているミキシングスクリュー（９）にて前述のように主原料（Ｍ）にうまく包み込まれた状態で下方へ流下され、副原料（Ｎ）の性質が上記のような場合でも、より効果的に嵌合ムラをなくすことが出来る。 When such a raw material chute (10) is provided, the main raw material (M) that has passed through the side (15b) of the baffle plate (15) is on both inclined side surfaces (10c) of the raw material chute (10). The above-described mixing screw (9) is placed over the auxiliary raw material (N) that is forced inward and flows into the back surface of the baffle plate (15), and is installed below the lower end opening (10b). As described above, even when the secondary raw material (N) is flowed downward in a state of being successfully wrapped in the main raw material (M) and the properties of the secondary raw material (N) are as described above, the unevenness of fitting can be more effectively eliminated.
次に、本発明の第３実施例を図１１のミキシングスクリュー（９）の部分に従って説明する。この場合は原料シュート（１０）を設けない場合も設けた場合も適用される。第３実施例では、前述のようにミキシングスクリュー（９）の回転軸（９ａ）の先端が原料導入路（５）の壁面（５ａ）まで延出されて両端支持となっており、螺旋羽根（９ｂ）が邪魔板（１５）を越えて邪魔板（１５）の背部まで設けられている。これによりその作用としては、主原料（Ｍ）と混ざり合った副原料（Ｎ）はミキシングスクリュー（９）の螺旋溝（９ｄ）にガイドされつつ原料導入路（５）の壁面（５ａ）の近くまで押し込まれつつ掻き混ぜられ、主原料（Ｍ）中に広く分散した状態で下方へ流下されることになる。 Next, a third embodiment of the present invention will be described according to the part of the mixing screw (9) in FIG. In this case, the case where the raw material chute (10) is not provided or the case where it is provided is also applied. In the third embodiment, as described above, the tip of the rotating shaft (9a) of the mixing screw (9) is extended to the wall surface (5a) of the raw material introduction path (5) and is supported at both ends. 9b) is provided beyond the baffle plate (15) to the back of the baffle plate (15). As a result, the auxiliary raw material (N) mixed with the main raw material (M) is guided by the spiral groove (9d) of the mixing screw (9) and close to the wall surface (5a) of the raw material introduction path (5). It is stirred and pushed down to flow downward in a state of being widely dispersed in the main raw material (M).
なお、図示していないが、その変形例として、回転軸（９ａ）の先端を前記反対側の壁面（５ａ）まで伸ばさず、該壁面（５ａ）の近傍に止め、片持ち状態としてもよい。その場合、螺旋羽根（９ｂ）は邪魔板（１５）を越え、回転軸（９ａ）の先端又はその近傍まで延出することになる。この場合も第３実施例と同様の作用を生じる。 Although not shown in the drawings, as a modification thereof, the tip of the rotating shaft (9a) may not be extended to the opposite wall surface (5a) but may be stopped near the wall surface (5a) to be in a cantilever state. In that case, the spiral blade (9b) extends beyond the baffle plate (15) to the tip of the rotating shaft (9a) or the vicinity thereof. In this case, the same operation as in the third embodiment is produced.
図１１〜１４は本発明の第４実施例で副原料通路（２３）の下端部の形状が図１〜１０までの場合と異なる例である。この場合、ミキシングスクリュー（９）だけ、押込スクリュー（６９）だけ、ミキシングスクリュー（９）と押込スクリュー（６９）の両方を用いる場合がある。図１１〜１３は両方を用いる場合であり、図１４は押込スクリュー（６９）だけである。ミキシングスクリュー（９）だけの場合は図示していない。以下、順次説明する。また、これらの装置は合流接続部（Ｐ）に設けられている。 FIGS. 11-14 is an example from which the shape of the lower end part of a subsidiary raw material channel | path (23) differs from the case of FIGS. 1-10 in 4th Example of this invention. In this case, only the mixing screw (9), only the pushing screw (69), and both the mixing screw (9) and the pushing screw (69) may be used. FIGS. 11 to 13 show the case where both are used, and FIG. 14 shows only the pushing screw (69). The case of only the mixing screw (9) is not shown. Hereinafter, description will be made sequentially. Moreover, these apparatuses are provided in the junction connection part (P).
図１１〜１４に示す副原料通路（２３）は図１２に示すように平断面正方形（勿論、これに限られず平断面円形或いは平断面長方形でもよい）で、主原料通路（１３）の下部天井面（１３ｂ）に挿通され、副原料通路（２３）を構成する四周の平板状の側壁（２３ａ）の下流端部は前述同様略Ｖ形又は略逆台形或いは略Ｕ形に切欠されて邪魔板（１５）が形成されている。即ち、副原料通路（２３）の下流端部に四か所形成されている。従って、副原料通路（２３）の下流端部のコーナー毎に主原料通過空間（Ｓ）が形成されることになる。そして副原料通路（２３）の挿入位置は主原料通路（１３）の下流端開口（１３ａ）の中央に位置する。副原料通路（２３）の挿入深さは図示しない昇降機構で調節できるようになっている。 The auxiliary material passage (23) shown in FIGS. 11 to 14 has a square cross section (of course, not limited to this, but may be a flat cross section or a rectangular shape) as shown in FIG. 12, and the lower ceiling of the main raw material passage (13). The downstream end of the four-sided flat plate-like side wall (23a) that is inserted into the surface (13b) and constitutes the auxiliary raw material passage (23) is notched into a substantially V shape, a substantially inverted trapezoidal shape, or a substantially U shape as described above. (15) is formed. That is, four places are formed at the downstream end of the auxiliary material passage (23). Accordingly, a main raw material passage space (S) is formed for each corner of the downstream end portion of the auxiliary raw material passage (23). The insertion position of the auxiliary raw material passage (23) is located at the center of the downstream end opening (13a) of the main raw material passage (13). The insertion depth of the auxiliary material passage (23) can be adjusted by an elevating mechanism (not shown).
邪魔板（１５）は、図１１から分かるようにその下端部は内側に若干すぼまる（即ち、副原料通路（２３）の内寸が次第に減少する）ように形成されている。上記の点は副原料通路（２３）が平断面円形の場合も同様である。そして、図の煩雑さを避けるため、主原料（Ｍ）が通過しない領域（Ｑ）を図中に表していないが、図２同様、各邪魔板（１５）の背面、即ち、副原料通路（２３）の内側に該領域（Ｑ）が形成される。 As can be seen from FIG. 11, the baffle plate (15) is formed such that the lower end portion thereof is slightly recessed inward (that is, the inner dimension of the auxiliary material passage (23) gradually decreases). The same applies to the case where the auxiliary material passage (23) has a circular cross section. In order to avoid the complexity of the figure, the region (Q) through which the main raw material (M) does not pass is not shown in the figure, but as in FIG. 2, the back surface of each baffle plate (15), that is, the auxiliary raw material passage ( The region (Q) is formed inside 23).
図１１の場合、原料シュート（１０）が設置されている場合で、副原料通路（２３）の下端部「＝邪魔板（１５）部分」は、原料シュート（１０）の下端開口（１０ｂ）の近傍に設定されている。そして、副原料通路（２３）の直下にミキシングスクリュー（９）が既述の状態（先端側が浅い下り傾斜）で設置されている。なお、原料シュート（１０）も既述の状態「下端開口（１０ｂ）はミキシングスクリュー（９）の先端側方向に下り傾斜で開口幅が漸減している状態」で設置されているが、必ずしも原料シュート（１０）を設けなければならないものでもない。原料シュート（１０）の構成及び作用は前述の通りである。なお、図１１〜１３の実施例に於いて、図の煩雑を避けるために主原料（Ｍ）が通過しない領域（Ｑ）を記載していないが、当然、各邪魔板（１５）の背面（内面）側に形成されている。そして、図１１〜１３では、副原料通路（２３）内に押込装置（６０）が設置されている。 In the case of FIG. 11, when the raw material chute (10) is installed, the lower end portion “= baffle plate (15) portion” of the auxiliary raw material passage (23) is the lower end opening (10b) of the raw material chute (10). It is set in the vicinity. And the mixing screw (9) is installed just under the auxiliary material passage (23) in the state described above (the tip side has a shallow downward slope). The raw material chute (10) is also installed in the state described above “the lower end opening (10b) is inclined downward in the direction of the tip of the mixing screw (9) and the opening width is gradually reduced”. There is no need to provide a chute (10). The configuration and operation of the raw material chute (10) are as described above. In addition, in the Example of FIGS. 11-13, in order to avoid the complexity of a figure, the area | region (Q) through which the main raw material (M) does not pass is not described, but of course, the back surface of each baffle plate (15) ( It is formed on the (inner surface) side. And in FIGS. 11-13, the pushing-in apparatus (60) is installed in the auxiliary | assistant raw material channel | path (23).
押込装置（６０）は、例えば、副原料通路（２３）に支持された押込モータ（６７）、押込モータ（６７）に装着され、設定された回転数で回転する押込スクリュー（６９）とで構成されている。押込スクリュー（６９）は、押込モータ（６７）の主軸に取り付けられた回転軸（６９ａ）、回転軸（６９ａ）の周囲に螺旋状に取り付けられた螺旋羽根（６９ｂ）とで構成されている。 The pushing device (60) includes, for example, a pushing motor (67) supported by the auxiliary material passage (23), and a pushing screw (69) that is attached to the pushing motor (67) and rotates at a set rotational speed. Has been. The push screw (69) includes a rotary shaft (69a) attached to the main shaft of the push motor (67), and a spiral blade (69b) attached in a spiral manner around the rotary shaft (69a).
この場合は、図示しないが、回転軸（６９ａ）の先端部分（６９ｃ）が主原料（Ｍ）内に入り込んでいるため、押込スクリュー（６９）を回転させると主原料（Ｍ）が副原料（Ｎ）の周囲を３６０°取り囲むようにし、その状態で副原料（Ｎ）が押込スクリュー（６９）の螺旋溝（６９ｄ）に入り込んで効果的に主原料（Ｍ）内に押し込まれる。そして、その下のミキシングスクリュー（９）の存在により、両者がより均一に混ぜ込まれる。この場合、条件の悪い副原料（Ｎ）の主原料（Ｍ）への押込みがより容易になる。 In this case, although not shown, since the tip portion (69c) of the rotation shaft (69a) has entered the main raw material (M), when the push screw (69) is rotated, the main raw material (M) becomes the auxiliary raw material ( N) is surrounded by 360 °, and in this state, the auxiliary raw material (N) enters the spiral groove (69d) of the pressing screw (69) and is effectively pushed into the main raw material (M). And both are mixed more uniformly by presence of the mixing screw (9) under it. In this case, it becomes easier to push the auxiliary raw material (N) having poor conditions into the main raw material (M).
しかして、本装置を作動させると、副原料通路（２３）が主原料通路（１３）内に挿入され、且つ、その下流端部が略Ｖ形又は略逆台形或いは略Ｕ形に切欠されて邪魔板（１５）となっているため、主原料通路（１３）内の主原料（Ｍ）は副原料通路（２３）の周囲を取り囲み、略Ｖ形などに切欠された４カ所の邪魔板（１５）の側辺（１５ｂ）間の主原料通過空間（Ｓ）から主原料（Ｍ）が副原料通路（２３）の内側に入り込み、副原料（Ｎ）と混ざり合う。更に言えばこの時、副原料通路（２３）の下端部全周に邪魔板（１５）が形成されているので、主原料通過空間（Ｓ）を通って副原料通路（２３）の周囲から主原料（Ｍ）が副原料通路（２３）内に回り込む。各邪魔板（１５）の背面（副原料通路（２３）の内側）には主原料（Ｍ）が通過しない領域（Ｑ）がそれぞれ形成され、この部分に副原料（Ｎ）が入り込み、上から回り込んだ主原料（Ｍ）が被さる。上記のように４隅から副原料（Ｎ）上に覆いかぶさるように主原料（Ｍ）が副原料通路（２３）内に入り込むと、上記のように条件の悪い副原料（Ｎ）であっても確実に主原料（Ｍ）内に取り込める。そして、これを押込装置（６０）の押込スクリュー（６９）が攪拌しつつ下方のミキシングスクリュー（９）に向けて押し込む。このように副原料（Ｎ）は機械的に押込スクリュー（６９）にて攪拌されるため、如何なる性状の副原料（Ｎ）でも、特に、軽量で異形のものでも効果的に均一混合がなされる。なお、この場合、副原料通路（２３）の下端部には複数個所（図では４カ所）の主原料通過空間（Ｓ）が形成されているため、細かく主原料（Ｍ）が回り込むため第１実施例の１枚ものの邪魔板（１５）に比べて攪拌効率が高い。ミキシングスクリュー（９）の攪拌混練作用は実施例１と同じである。なお、前記主原料通過空間（Ｓ）は１箇所でもよいが、この場合は攪拌効率は１枚ものの邪魔板（１５）と変わらない。 When this apparatus is operated, the auxiliary material passage (23) is inserted into the main material passage (13), and the downstream end thereof is notched into a substantially V shape, a substantially inverted trapezoidal shape, or a substantially U shape. Since it is a baffle plate (15), the main raw material (M) in the main raw material passage (13) surrounds the auxiliary raw material passage (23), and has four baffle plates (noted in a substantially V shape) ( The main raw material (M) enters the auxiliary raw material passage (23) from the main raw material passage space (S) between the side edges (15b) of 15) and mixes with the auxiliary raw material (N). Furthermore, at this time, since the baffle plate (15) is formed on the entire periphery of the lower end portion of the auxiliary raw material passage (23), the main raw material passage space (S) passes through the auxiliary raw material passage (23) from the periphery. The raw material (M) goes around into the auxiliary raw material passage (23). A region (Q) through which the main raw material (M) does not pass is formed on the back surface of each baffle plate (15) (inside the auxiliary raw material passage (23)), and the auxiliary raw material (N) enters into this portion from above. The main raw material (M) that wraps around is covered. When the main raw material (M) enters the auxiliary raw material passage (23) so as to cover the auxiliary raw material (N) from the four corners as described above, the auxiliary raw material (N) is in poor condition as described above. Can be reliably incorporated into the main raw material (M). Then, the pushing screw (69) of the pushing device (60) is pushed toward the mixing screw (9) below while being stirred. Since the auxiliary raw material (N) is mechanically agitated by the push screw (69) in this way, any kind of auxiliary raw material (N), in particular, lightweight and irregularly shaped, can be effectively mixed uniformly. . In this case, since the main raw material passage space (S) is formed at the lower end portion of the auxiliary raw material passage (23) at a plurality of locations (four locations in the figure), the main raw material (M) is finely circulated. The stirring efficiency is higher than that of the single baffle plate (15) of the example. The mixing and kneading action of the mixing screw (9) is the same as that in Example 1. In addition, although the said main raw material passage space (S) may be one place, in this case, stirring efficiency is not different from one baffle plate (15).
図１４は、押込スクリュー（６９）だけの場合で、副原料通路（２３）の邪魔板（１５）と、押込スクリュー（６９）の作用は上記の場合と同様である。ただし、押込スクリュー（６９）だけであるから、ミキシングスクリュー（９）の攪拌混練作用の分だけ攪拌効果は低下する。なお、図示していないが、ミキシングスクリュー（９）だけで押込スクリュー（６９）を設けない場合もある。この場合、前述のように多面（ここでは四方）から主原料（Ｍ）が回り込むので、押込スクリュー（６９）を設けた場合よりも劣るが、実用的には十分な攪拌効果を得られる。 FIG. 14 shows a case where only the pushing screw (69) is used, and the operation of the baffle plate (15) of the auxiliary material passage (23) and the pushing screw (69) is the same as the above case. However, since only the pushing screw (69) is provided, the stirring effect is lowered by the amount of the stirring and kneading action of the mixing screw (9). Although not shown, there are cases where the pushing screw (69) is not provided only with the mixing screw (9). In this case, as described above, the main raw material (M) wraps around from many faces (here, four sides), so that it is inferior to the case where the pushing screw (69) is provided, but a practically sufficient stirring effect can be obtained.
（Ａ）：押出成形機，（Ｍ）：主原料，（Ｎ）：副原料，（Ｐ）：合流接続部，（Ｑ）：主原料が通過しない領域，（Ｓ）：主原料通過空間，（１）：主原料供給部，（２）：副原料供給部，（３）：押出し装置本体，（４）：原料供給口，（５）：原料導入路，（５ａ）（５ｂ）：原料導入路の壁面，（６）：ミキシング装置，（７）：ミキシングモーター，（８）：スクリュー受け，（９）：ミキシングスクリュー，（９ａ）：回転軸，（９ｂ）：螺旋羽根，（９ｃ）：先端部分，（９ｄ）：螺旋溝，（１０）：原料シュート，（１０ａ）：上端開口，（１０ｂ）：下端開口，（１０ｃ）：側面，（１０ｄ）；前面，（１０ｅ）：後面，（１１）：主原料ホッパ，（１１ａ）：シャッタ部材，（１２）：主原料計量ホッパ，（１２ａ）：ロードセル，（１３）：主原料通路，（１３ａ）：下流端開口，（１３ｂ）：下部天井面，（１４）：当て板，（１５）：邪魔板，（１５ａ）：邪魔板の下部，（１５ｂ）：邪魔板の側辺，（１５ｃ）：邪魔板の下端，（１５ｅ）：水平切込部分，（１６）：ガイド部材，（１７）：保持部材，（２１）：副原料ホッパ，（２１ａ）：シャッタ部材，（２２）：副原料計量ホッパ，（２２ａ）：ロードセル，（２３）：副原料通路，（２４）：副原料切り出し用スクリュー，（３１）：加熱筒，（３２）：スクリュー，（３３）：モータ，（６０）：押込装置，（６７）：押込モータ，（６９）：押込スクリュー，（６９ａ）：回転軸，（６９ｂ）：螺旋羽根，（６９ｃ）：先端部分，（６９ｄ）：螺旋溝。 (A): Extruder, (M): Main raw material, (N): Secondary raw material, (P): Junction connection, (Q): Area where main raw material does not pass, (S): Main raw material passage space, (1): Main raw material supply section, (2): Sub raw material supply section, (3): Extruder main body, (4): Raw material supply port, (5): Raw material introduction path, (5a) (5b): Raw material (6): mixing device, (7): mixing motor, (8): screw receiver, (9): mixing screw, (9a): rotating shaft, (9b): spiral blade, (9c) : (10d): Raw material chute, (10a): Upper end opening, (10b): Lower end opening, (10c): Side surface, (10d); Front surface, (10e): Rear surface, (11): Main raw material hopper, (11a): Shutter member, (12): Main raw material weighing hopper, (12a): (13): Main material passage, (13a): Downstream end opening, (13b): Lower ceiling surface, (14): Baffle plate, (15): Baffle plate, (15a): Lower part of baffle plate, ( 15b): side of baffle plate, (15c): lower end of baffle plate, (15e): horizontal cut portion, (16): guide member, (17): holding member, (21): auxiliary material hopper, ( 21a): shutter member, (22): auxiliary material weighing hopper, (22a): load cell, (23): auxiliary material passage, (24): auxiliary material cutting screw, (31): heating cylinder, (32): Screw, (33): motor, (60): pushing device, (67): pushing motor, (69): pushing screw, (69a): rotating shaft, (69b): spiral blade, (69c): tip portion, (69d): Spiral groove.
Claims (7)
主原料通路の下流端開口に位置し、下流端開口の上部から下方に向かって下流端開口より幅の狭い邪魔板が垂設され、
少なくとも邪魔板の側辺と下流端開口との間に主原料通過空間が形成され、
合流した両原料を混合するミキシングスクリューが、邪魔板の下端の直下にて邪魔板に立体的に交差するように配設されていることを特徴とする原料供給装置。 The downstream end of the main raw material passage for feeding a certain amount of main raw material downward and the downstream end of the auxiliary raw material passage for feeding a certain amount of auxiliary raw material downward are connected in a bifurcated manner. And a raw material supply device that joins the main raw material and the auxiliary raw material at the confluence, and flows down to the molding machine by its own weight through the raw material introduction path,
Located at the downstream end opening of the main raw material passage, a baffle plate narrower than the downstream end opening is suspended from the upper part of the downstream end opening downward,
A main material passage space is formed at least between the side of the baffle plate and the downstream end opening,
A raw material supply apparatus, wherein a mixing screw for mixing the two raw materials joined together is disposed so as to three-dimensionally intersect the baffle plate immediately below the lower end of the baffle plate.
主原料通路の下流端開口内に位置する副原料通路の下流端部が略Ｖ形又は略逆台形或いは略Ｕ形に切欠されて副原料通路の下流端部に邪魔板が形成され、
邪魔板の側辺を、副原料通路の内側に主原料が入り込む主原料通過空間とし、
邪魔板の下端の直下にミキシングスクリューが邪魔板に立体的に交差するように配設されていることを特徴とする原料供給装置。 A certain amount of auxiliary material inserted into the main raw material passage for feeding a certain amount of the main raw material downward and the main raw material passage at the downstream end of the main raw material passage into the main raw material. A raw material supply device composed of a secondary raw material passage mixed in and supplied to a molding machine,
The downstream end portion of the auxiliary raw material passage located in the downstream end opening of the main raw material passage is cut into a substantially V shape, a substantially inverted trapezoidal shape, or a substantially U shape, and a baffle plate is formed at the downstream end portion of the auxiliary raw material passage,
The side of the baffle plate is the main material passage space where the main material enters the inside of the auxiliary material passage,
A raw material supply apparatus, characterized in that a mixing screw is arranged directly below the lower end of the baffle plate so as to three-dimensionally intersect the baffle plate.
前記合流接続部に於いて副原料通路の下端部に主原料通過空間となる切欠を形成して該下端部の主原料通過空間の間の非切欠部分が邪魔板となるように上部から下方に向かって次第に幅が狭くなるように形成され、
邪魔板の下端の直下にて邪魔板に立体的に交差するように配設され、合流した両原料を混合するミキシングスクリューと、副原料通路内に配設され、副原料を原料導入路に向かって押し込むための押込スクリューの少なくともいずれか一方を前記合流接続部に備えたことを特徴とする原料供給装置。 The downstream end of the main raw material passage for feeding a certain amount of main raw material downward and the downstream end of the auxiliary raw material passage for feeding a certain amount of auxiliary raw material downward are connected in a bifurcated manner. And a raw material supply device that joins the main raw material and the auxiliary raw material at the confluence, and flows down to the molding machine by its own weight through the raw material introduction path,
A notch serving as a main raw material passage space is formed at the lower end portion of the auxiliary raw material passage at the joining connection portion, and the non-notched portion between the main raw material passage spaces at the lower end portion is formed as a baffle plate from below. It is formed so that the width becomes gradually narrower toward the
Directly below the lower end of the baffle plate, it is arranged so as to three-dimensionally intersect the baffle plate, and is installed in the auxiliary raw material passage for mixing the mixed raw materials and the auxiliary raw material toward the raw material introduction path. A raw material supply apparatus comprising at least one of push-in screws for pushing in at the junction.
原料シュートの上端開口は、主原料通路の下流端と副原料通路の下流端の合流接続部に接続しており、
原料シュートの下端開口は、上端開口より開口幅が狭く形成されており、
原料シュートの側面は、上端開口から下端開口に向けて傾斜するように設けられていることを特徴とするものである請求項１〜６のいずれかに記載の原料供給装置。 A raw material chute is provided below the baffle plate,
The upper end opening of the raw material chute is connected to the junction connection portion of the downstream end of the main raw material passage and the downstream end of the auxiliary raw material passage,
The lower end opening of the material chute is formed with a narrower opening width than the upper end opening,
The raw material supply apparatus according to any one of claims 1 to 6, wherein the side surface of the raw material chute is provided so as to be inclined from the upper end opening toward the lower end opening.
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| CN109676768B (en) * | 2019-02-28 | 2023-09-12 | 佛山市东鹏陶瓷有限公司 | Material distribution system |
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