Head-tail impact-free pursuing control method and device for ultrasonic testing line steel pipes

• Main Authors: XUE YUEZHAO, GUO JUZHONG
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2019
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PACKING; PERFORMING OPERATIONS; PHYSICS; PNEUMATIC TUBE CONVEYORS; SHOP CONVEYOR SYSTEMS; STORING; TESTING; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING

The invention discloses a head-tail impact-free pursuing control method and device for ultrasonic testing line steel pipes. The head-tail impact-free pursuing control method comprises the following steps: controlling first steel pipes to move on a feeding roller bed and a pursuing roller according to the velocity of a testing machine host; releasing the control permission of the pursuing roller when the tails of the first steel pipes leave from the pursuing roller; when a first detecting element detects that the tails of the first steel pipes leave, controlling second steel pipes to move on the feeding roller bed at the maximum linear velocity; when the first detecting element detects that the heads of the second steel pipes reach, determining whether the second steel pipes can successfully pursue the first steel pipes or not according to the velocity of the testing machine host, the maximum linear velocity and a distance between the first detecting element and a second detecting element; controlling the seco