【発明の詳細な説明】
本発明はスクリュー軸を削屑の搬送方向に向って縮径す
る細長い円錐状に形成したことを特徴とするスクリュー
コンベヤに関し、精密仕上げの機械加工によシ生成した
アルミニウム削屑などの折曲し易く且つ細長い削屑をス
クリュー軸に絡み付かせずに確実に搬送することを目的
とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a screw conveyor characterized in that the screw shaft is formed into an elongated conical shape whose diameter decreases in the direction of conveyance of cuttings. The purpose is to reliably transport easily bendable and elongated cuttings such as cuttings without getting them entangled with the screw shaft.
従来、刃物及び切込みの細い精密仕上げの機械加工によ
シ生成したアルミニウム削屑などの折曲し易く且つ細長
い削屑をスクリューコンベヤで搬送する場合、該削屑が
スクリュー軸に糸を木ψたように絡み付いて停滞し搬送
不能に陥いることが多く、このような弊害を避けるため
スクリュー軸の表面を滑らかに加工して削屑が滑り易く
絡みにくいようにし、或いは邪魔板を断面鋸歯状に形成
して形状抵抗によシスクリユー軸に絡み付いた削屑を離
脱させ搬送する試みがなされている。しかしながら、前
者は表面加工に手間と費用を要し、また後者は必ずしも
所期の効果を奏せず搬送不能となる虞れがあった。Conventionally, when conveying easily bendable and long shavings such as aluminum shavings generated by cutting tools and precision finishing machining with a narrow depth of cut by a screw conveyor, the shavings have a thread attached to the screw shaft. In order to avoid such problems, the surface of the screw shaft should be smoothed to make it easier for the cuttings to slip and become less likely to get tangled, or the baffle plate should have a serrated cross section. Attempts have been made to release and transport cuttings that have formed and become entangled with the system screw shaft using shape resistance. However, the former method requires time and expense for surface processing, and the latter method does not necessarily produce the desired effect and there is a risk that transportation may become impossible.
本発明はこのような欠点を除去したもので、その実施例
を図面によって詳述すると、駆動用モータｆ１１の駆動
軸−２）からチェノ（３）を経て回動するスクリュー軸
（４）を、削屑の搬送方向＋Ｃ向って即ちスクリュー軸
（４）の先端方向に向って縮径する細長い円錐状となる
よう小さな勾配を付して旋削し、更に該スクリュー軸（
４）に搬送羽根（５）を螺旋状に溶着して成るものであ
シ、（６）は削屑受承用のトラフ、（７）は削屑の吐出
口部に斜上向きに装着しだ削屑送出筒、（８）は搬送羽
根（５）に近接し且つスクリュー軸（４）と平行してト
ラフ（６）に固着した邪魔板、（９）は折曲し易く且つ
細長いアルミニウム削屑である。The present invention eliminates such drawbacks, and the embodiment thereof will be described in detail with reference to the drawings. The screw shaft (4) is turned with a small slope so that it becomes an elongated conical shape whose diameter decreases in the cutting chip conveying direction +C, that is, toward the tip of the screw shaft (4).
4) with a conveyor blade (5) welded in a spiral shape, (6) is a trough for receiving cuttings, and (7) is attached diagonally upward to the cuttings discharge port. Shavings delivery tube, (8) is a baffle plate fixed to the trough (6) in close proximity to the conveying blade (5) and parallel to the screw shaft (4), (9) is an elongated aluminum shavings that is easy to bend. It is.
本発明はこのようにして成るから、細長いアルミニラム
削屑（９）がスクリュー軸（４）の回動に伴なって生じ
る搬送羽根（５）の推進力によってトラフ（６）の吐出
口部へ向って少し移送されるとスクリュ軸（４）が削屑
の搬送方向に向って縮径する小さ々勾配を付した細長い
円錐状に形成されているためスクリュー軸（４）に糸を
巻くように絡み付こうとするアルミニウム削屑（θ）と
スクリュー軸（４）の表面との間に少許の間隙を生じ、
従ってアルミニウム削屑（９）は順次スムーズ移送され
停滞することなくトラフ（６）の吐出口から削屑送出筒
（７）へ搬送され確実に排出することができるのである
。Since the present invention is constructed in this way, the elongated aluminum ram shavings (9) are directed toward the discharge port of the trough (6) by the propulsive force of the conveying vanes (5) generated with the rotation of the screw shaft (4). When the cutting chips are transported a little, the screw shaft (4) is formed into an elongated conical shape with a slight slope that decreases in diameter in the direction of conveyance of the cuttings, so the thread becomes entangled around the screw shaft (4). A small gap is created between the aluminum shavings (θ) that are about to stick and the surface of the screw shaft (4),
Therefore, the aluminum cuttings (9) are smoothly transferred one after another and are transported from the outlet of the trough (6) to the cuttings delivery tube (7) without stagnation and can be reliably discharged.
このように本発明は構造が簡単で製造容易であると共に
削屑をスクリュー軸に絡み付かせることなく確実に排出
できる勝れた有用発明である。As described above, the present invention is an excellent and useful invention that has a simple structure, is easy to manufacture, and is capable of reliably discharging cutting chips without getting them entangled with the screw shaft.
【図面の簡単な説明】
第１図は本発明の実施例を示す平面図、第一回は同正面
図、第３図は第２図におけるＡ−Ａ拡大断面図、第４図
は要部切欠拡大正面図である。
（４）・・スクリュー軸 （６）・・搬送羽根特許出願
人 安 川 勝
第１図
第２図
Ａ−、Ｊ
第３図[Brief Description of the Drawings] Fig. 1 is a plan view showing an embodiment of the present invention, the first is a front view of the same, Fig. 3 is an enlarged sectional view taken along line A-A in Fig. 2, and Fig. 4 is a main part. It is a notch enlarged front view. (4)...Screw shaft (6)...Transportation vane patent applicant Masaru Yasukawa Figure 1 Figure 2 A-, J Figure 3