Automatic-opening-closing conveying mechanism with three rollers rotating automatically for cylinders

Abstract

The invention discloses an automatic-opening-closing conveying mechanism with three rollers rotating automatically for cylinders. The mechanism comprises a machine body, a rotation drive motor, a plurality of clamping rotation rollers, an opening-closing actuator and a drive screw rod. A conveying channel penetrating the whole machine body is arranged in the machine body; the rotation drive motor drives the clamping rotation rollers to rotate through synchronous belts, the plurality of the clamping rotation rollers are evenly distributed on the outside of the conveying channel at intervals, and the clamping rotation rollers are connected in a linkage mode through a plurality of swing connection rods; and one end of the opening-closing actuator is connected with the swing connection rods, and the other end of the opening-closing actuator is connected with the drive screw rod. According to the mechanism, centers of pipes or rods of different diameters during conveying are not changed, the speed and displacement can be monitored in real time through an encoder arranged on the mechanism, and changing of conveying centers of cylinders to be conveyed due to abrasion of roller ways during utilization can be prevented.

Description

technical field [0001] The invention relates to a conveying mechanism for conveying pipes or rods, in particular to a three-roller actively rotating self-opening and closing cylinder conveying mechanism. Background technique [0002] In the field of linear conveying of cylinders, the general method is that two rollers are pressed and conveyed by opening and closing up and down, the lower roller is a V-shaped roller, and the upper roller is a V-shaped or flat roller. The main disadvantages of this approach include: [0003] (1) When the diameter of the conveyed cylinder changes, the center of the cylinder will also change in the vertical direction, so a vertical lifting mechanism must be added to compensate and control the change of the center, which is equivalent to introducing a new execution The mechanism also introduces new error factors, which makes it difficult to guarantee the equipment or process conditions that require high or constant accuracy of the delivery cente...

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Problems solved by technology

[0003] (1) When the diameter of the conveyed cylinder changes, the center of the cylinder will also change in the vertical direction, so a vertical lifting mechanism must be added to compensate and control the change of the center, which is equivalent to introducing a new execution The mechanism also introduces new error factors, so it is difficult to guarantee the accuracy of the delivery center for equipment or process conditions that require high or constant accuracy.

[0004] (2) With the long-term use of the equipment, due to the wear of the pinch roller, generally the wear of the lower pinch roller is relatively large, which will also cause the displacement of the conveying center of the originally adjusted cylindrical workpiece due to wear. Therefore, the center precision control is difficult to guarantee

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