Seamless table tennis ball bounce performance detection and sorting device

Abstract

The invention discloses a seamless table tennis ball bounce performance detecting and sorting device, which comprises a ball supply device, a bounce device, a bounce collision information collection and treatment device and a ball collection device, wherein the ball supply device comprises a ball supply hopper, a discharge pipe, a ball supply rotary disk and a ball outlet elbow which are sequentially connected; the ball outlet elbow is provided with a ball inlet section and a ball outlet section, and the ball outlet section is horizontally arranged; the bounce device comprises a ball receiving bounce slope and a ball receiving bounce plane, the ball receiving bounce slope is arranged under the ball outlet elbow, and the normal direction of the ball receiving bounce slope is perpendicular to the axial space of the ball outlet section; the ball receiving bounce plane is arranged at the bottom of the ball receiving bounce slope and extends in the bounce forward direction of a table tennis ball; the bounce collision information collection and treatment device comprises a plurality of collision sensor and processors which are arranged on the ball receiving bounce plane in parallel. The seamless table tennis ball bounce performance detecting and sorting device can eliminate an effect of the falling initial velocity of the table tennis ball, eliminate errors generated by uneven bounce performance of different areas of a spherical surface of the table tennis ball and achieve real-time online detection.

Description

technical field [0001] The invention relates to a device for detecting and sorting the bouncing performance of seamless table tennis balls, which is used for online detection and sorting of the bouncing performance of seamless table tennis balls. Background technique [0002] As my country's national sport, table tennis has become popular among sports enthusiasts. More and more people take part in table tennis after school, after work and on rest days. With the improvement of competitive technology, the quality requirements of table tennis are also increasing. higher. Seamless table tennis is a new invention following the traditional seamed ball, which has many advantages, but so far, there is no effective means for real-time online detection of various performance indicators of seamless table tennis. Manual screening from a large number of products is inefficient, the false detection rate is high, and the quality cannot be guaranteed. [0003] According to the current late...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the initial velocity of the ping-pong ball affects the time interval between the two light-blocking times, which brings detection errors; secondly, the light-controlled detection method cannot judge the uniformity of the bounce of the entire ping-pong ball.

The sound control method is similar to the light control method, and has the same disadvantages; the slant plate pit detection method, the free-falling table tennis ball bounces through the slant plate and falls into the bunker, and the rebound height is calculated by empirical formulas by measuring the position of the bunker. The biggest disadvantage of the method is that it cannot be measured online in real time, which limits its popularization and application; in addition, the camera method requires a high-speed camera, which is expensive, and there is no effective way to capture the image when the table tennis ball bounces to the highest position

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