Device for controlling direction of container



PROBLEM TO BE SOLVED: To control the direction of a container without printing a detection mark exclusively for the container by a method wherein a lifter is controlled in such a manner that a joint which extends in the vertical direction of the body wall of the container and is twice thicker than the thickness of the container base material, is detected, and a container receiving table is rotated, and stopped. SOLUTION: A slat 23 which holds a container 11 in a container holding hole 24 is intermittently driven by a conveyor 21, and when the slat 23 stops at a processing station, the stop is detected by a limit switch 41. Based on the detection signal of the limit switch 41, a container receiving table 33 ascends and pushes up the container 11 to separate the container 11 from the container holding hole 24, and rotates the container 11. During this period, an ultrasonic wave is irradiated to the container 11 from an ultrasonic sensor 42, and when the end surface of a joint 13 and the ultrasonic sensor 42 are made to confront to each other, a joint detection signal is output. Based on the signal, the container receiving table 33 stops the rotation, and descends at the same time, and the container 11 is returned to the slat 23. By doing so, the direction of the container 11 is adjusted so that the joint 13 of the container 11 may face a specified direction. COPYRIGHT: (C)1997,JPO
(57)【要約】 【課題】 容器に専用の検出マークを印刷することな く、継ぎ目によって容器の方向制御をする。 【解決手段】 容器の方向制御装置は、容器保持孔24を 有するスラット23が処理ステーションで停止させられる ように間欠的に駆動されるコンベヤ21と、処理ステーシ ョンで停止させられたスラット23の下方に、同スラット 23の容器保持孔24と同心状に配置されかつ昇降および回 転自在な垂直ロッド32およびこれの上端に設けられてい る容器受台33を有しているリフタ31と、スラット23が処 理ステーションで停止させられたことを検出するリミッ トスイッチ41と、容器受台33上の容器11の胴壁12の継ぎ 目13が所定の検出方向に向けられたことを検出する変位 センサ42,51,52と、リミットスイッチ41の検出信号に 基づいて容器受台33を上昇かつ回転させ、変位センサ4 2,51,52の検出信号に基づいて容器受台33を回転停止 させかつ下降させるようにリフタ31を制御する制御手段 とを備えている。




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