Siemens machine used in PET beverage cosmetics packaging production defect detection

1 the introduction with the improvement of people's living standard, the market demand of beverage is also increasing, the quality of the products has become a concern of manufacturers and consumers. Drinks and cosmetics packaging production appearance quality, directly or indirectly affect the beverage its internal quality, so in order to reduce the number of nonconforming product, need to increase the detection process. Manual visual inspection and product tag expensive and unreliable. Means the inhuman monotony work again at the same time. Here, the automated machine vision system provides the solutions to solve these problems. 2 PET drinks the defects of cosmetics packaging production cosmetics packaging production, filling, a set of label and labeling, is affecting the quality of PET beverage cosmetics packaging production four key working procedure. First in the cosmetics packaging production process, high temperature gas was in the embryo and cosmetics packaging production after a specific mould pressing become cosmetics packaging production, cosmetics packaging production in the process of the possible deformation, crooked neck, and so on and so forth; Cosmetics packaging production in filling process, the PET will appear less irrigation, leaking, cap unscrewing and wrinkled, and so on and so forth; In a set of label and labeling process, labels will tilt, covers, and so on and so forth; In the printing process, due to the accidental fault spurt the code machine, size lead to leakage spray and spray, and so on and so forth. These cases mild can lead to product appearance is not beautiful, serious will result in changes of internal quality of beverages, particularly like tea beverages and milk beverages. Several shortcomings affecting the quality of beverage cosmetics packaging production as follows: high cover, slanting cover, cover, no cover, light volume, wrong standard, no printing. 3 PET beverage by using machine vision, the appearance of the cosmetics packaging production automatic detection of defects with drinks demand increasing, and customer requirements for product quality, more and more beverage manufacturers using automated PET cosmetics packaging production defect detection system, defects of the exterior of the PET cosmetics packaging production comprehensive testing. This method instead of the traditional artificial method to improve the production efficiency and product quality, solved the artificial method is of low efficiency, slow speed, and is conditioned by testing personnel subjective uncertainty of error checking and leak, achieve better 100% products on-line detection. 3. 1 machine vision system is an overview of the machine vision system through the image taking device ( CMOS camera and CCD camera two) To capture the image, and then to transfer the image to the processing unit, through the digital processing, according to the pixel distribution and brightness, color and other information, for the recognition of the size, shape, color, etc. And according to the results of determination to control the scene of the equipment. 3. 2 machine vision to the appearance of the PET beverage cosmetics packaging production defects automatic detection scheme in this paper, using the hangzhou huafeng automation system co. , LTD. Development of PET beverage cosmetics packaging production test system used in PET drinks the appearance of cosmetics packaging production defect detection. The system with Siemens image processor as the core, combined with the Siemens automation equipment, formed there are both simple digital signal interface and complex system of the industrial network interface, allows users to choose to suit oneself condition system, convenient and save investment. Working principle: first of all fiber optic sensor sensing cosmetics packaging production, and then trigger the image processor shooting images, image analysis and processing, the final drive out device. 3. Hangzhou huafeng PET cosmetics packaging production of visual inspection system function introduction (1), can the existence of object online detection, model, shape, position and direction of recognition, measurement of workpiece, the calculation of 1 d / 2 d code, OCR/OCV. (2), the system is currently the actual testing speed reached 1500 cosmetics packaging production/min. (3), could eliminate detected accurately by eliminating device (defective items Automatic tracking the conveyor speed) by adding speed encoder 。 (4), can achieve the following statistics function and touch screen display at the scene, Install the printer can print) : unit through the nonconforming product quantity and proportion, unit time by the number of nonconforming product and proportion, the shift in the production of products and detect the total defective quantity, the amount of every months of accumulative total production of the product and to detect the number of defective products. (5), can store all kinds of products on production line test procedures and can be easily through the touch screen to choose. 6, can through the Ethernet interface and the computer communication, realize the online monitoring, on-line modification test procedure, record production data online, online real-time image according to user's requirements ( Qualified product image and the unqualified product image) 。 All landowners, can according to the production line needed to test different products and easily adjust the height of the visual detection device. Today, machine vision detection system for independent system, it can be used to easily access or exit, the variety of hardware, software, provided by the manufacturer. Pet-name ruby, machine vision detection system installation, maintenance, easy disassembly. 4 conclusion this system has been successfully applied to several well-known domestic beverage production line, the effect is very good. Not only meet the user's existing demand, but also for the user to set aside a lot of functions and upgrade space, these functions in the testing task will play more role, for the user to solve the problem of more, save a lot of the cost of the upgrade. Such as: printing interface, PC communication interface, alarm interface, labels, the functions of detection, speed, etc. More important is the system to strictly control the quality of the user product, reduce the labor costs a lot. With the constant improvement of the industrial automation level, the growth of the artificial cost, the system will be more broad prospect of application.