Foreign matter inspection device for automatic light inspection machine

Abstract

The invention discloses a foreign matter inspection device for an automatic light inspection machine. The foreign matter inspection device comprises a light inspection disk assembly, more than one setof image acquisition assemblies and an autorotation driving assembly, wherein each image acquisition assembly comprises a rotating arm, a camera, a light source and a rotating arm driving mechanism,the camera and the light source are fixed on the rotating arm, and the rotating arm is connected with the rotating arm driving mechanism by a transmission mechanism. The invention is the foreign matter inspection device for the automatic light inspection machine, having the advantages of simple and compact structure, low cost, and high inspection accuracy, stability and inspection efficiency.

Description

technical field [0001] The invention mainly relates to the field of pharmaceutical machinery and equipment, in particular to a foreign object detection device used in an automatic light inspection machine. Background technique [0002] In the field of pharmaceutical machinery and equipment, the light inspection machine is a series of special equipment that uses optical imaging and computer image comparison principles to automatically and intelligently detect the quality of packaged liquid medicines. The computer analyzes the collected image data, judges the quality of the liquid medicine, draws a conclusion and directs the rejection swing arm mechanism on the light inspection machine to reject unqualified medicine bottles. [0003] In the existing light inspection machine, the packaged liquid drugs (such as ampoules filled with liquid medicine, etc.) will be sent to the light inspection plate in turn to complete the detection of foreign objects in the liquid medicine contain...

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Problems solved by technology

[0005] The deficiencies in the existing structure are: 1. Since the arrangement density of the rotation axes on the light inspection panel is very large, the distance between adjacent rotation axes is very short. When the belt is close to the rotation shaft pulley, due to the size error of the rotation shaft pulley, the efficiency of ordinary transmission is not good, the stability is poor, and the rotation of adjacent rotation shafts is often inconsistent, and the detection accuracy cannot be guaranteed; in order to avoid the above phenomenon, adopt The staggered assembly of pulleys on adjacent rotation shafts is achieved, the interval between pulleys on the same layer is increased, and the risk of pulleys being overhead is reduced

2. During the detection process, when the image acquisition device detects two adjacent bottles to be detected, the speeds of the two bottles to be detected when they reach the detected point are inconsistent, resulting in inconsistent rotation of the liquid medicine in the medicine bottle, thereby affecting the detection accuracy ; 3. The existing structure generally adopts a "swing arm" type braking mechanism to perform unilateral braking on the high-speed rotating bottle

However, the existing swing arm brake mechanism cannot stop the high-speed rotating bottle in the shortest time.

In addition, the "swing arm" brake mechanism brakes the rotation axis that drives the bottle to rotate on one side, which is a unilateral brake. Under the influence of momentum, it is easy to make the bottle unable to maintain a balanced state, eccentric or unstable. The braking force is small, and the effect is definitely not as good as bilateral braking, which will affect image acquisition

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